Who has not skipped labor lessons remembers perfectly school woodworking machine STD-120M. This device was originally designed to teach children the basics of woodworking.

Thanks to him, a person receives all the necessary skills for turning the outside of the future part and turning the inside. It would be nice to have such a machine in your garage, so that in which case you would not buy home furniture, but make it yourself.

In addition, thanks to this equipment, you can create beautiful wood decorations for the facade or home interior. Let's look at what the STD-120M machine is all about.

In Soviet times, a woodworking machine was located in all school workshops and vocational schools without exception.

Thanks to this unit, students and schoolchildren received the basics of working with wood, so that later, when deciding on a profession, they could have skills that make it possible to master more complex technological equipment.

STD-120M is not just a training machine

But it is also used to meet the needs of small carpentry workshops, as well as craftsmen to solve everyday problems. It is noteworthy that if you buy a new such machine, then the consumer receives, in addition to the equipment, a number of necessary tools for working on it.

They include

Chisels

Special cutters for wood

Other abrasive tools

STD-120M enables the operator

cut wood;

Turn the edges of the workpiece;

Perform trimming of the future wood product;

Drill internal holes;

Make grooves to give a special shape.

Primary processing of wood is carried out at low speeds of the plug on which the raw material is attached. As the upper layer is removed, the operator himself selects the required rotation speed.

Healthy! Thanks to the control panel, on STD-120M you can adjust the rotation speed in order to process wood more efficiently. At too high speeds and inept use, it may crack.

To avoid cracking the wood, you should carefully work with chisels. This equipment is not designed to apply excessive force. By setting the rotation and smoothly moving the rails, the user is able to quickly and accurately turn a variety of shapes.

The main purpose of the machine

Processing small elements of future furniture or decor items. The machine has lighting, as well as a protective screen that allows you to protect the operator's eyesight from damage. The lamp makes it possible to work at any time. The lamp stand is flexible, which makes it possible to fix it so that the direction of the light flux provides illumination where the carpenter needs.

Advice! At the end of the article is video how to quickly grind a handle for a tool on a STD-120M machine.

Specifications

STD-120M complete set.

The machine is supplied with

Everything you need to do basic turning work related to woodworking. The set that comes with the machine includes tools for:

• Turning;
• drilling;
• Cutting and cutting pieces of wood;
• And also trimming.

Spindle

Which is mounted on the chuck, the operator needs to perform end processing. It is carried out with a maizel or other tools designed for cutting wood. The installation of the workpiece in the machine is carried out using a mallet.

For rough cutting of wood

Reyer is used. This is a semi-circular cutter, which makes it possible to remove a large amount of an unnecessary layer. It is mounted on a handrest, which is adjustable with screws. It must be set at a distance of at least 3 mm from the rotating workpiece.

The machine has a special trident fork

Which holds the future piece of furniture in the right position.

pinole

This is the part on the tailstock of the machine that causes the part fixed in the equipment to rotate.

This method of fixing the workpiece must be used in the manufacture

• Handles for tools;
• Rolling pins and other kitchen tools;
• Legs for chairs or stools.

The installation uses a belt drive, and thanks to the ability to throw it on a particular shaft, you get the opportunity to adjust the speed of rotation of the workpiece.

If your goal is to grind a plate or other fixture with a large outer diameter, the machine has a faceplate and discs with screws. They enable the user to make the necessary recesses in the workpiece by moving the tool from the center outwards.

As for the dimensions of the workpieces

Which are able to process the machine STD-120M, the passport equipment prescribes the following:

1. The maximum length of the workpiece is 50 cm.
2. The maximum allowable turning length is 50 cm.
3. The maximum width is not more than 19 cm.

The height of the centers at the machine is 12 cm

The spindle in the factory configuration for rotation speed is available in 2 modes. These speeds are designed for different stages of wood processing. The draft stage provides for the rotation of the shafts at the limit of 980 rpm, and the finishing speed is 6,500 rpm.

The machine itself is not big.

Equipment dimensions as follows

• Length - 125 cm.
• Equipment height - 55 cm.
• Width - 57.5 cm.
• The mass of STD-120M in the complete assembly does not exceed 100 kg.

For the convenience and safety of working on the equipment, the machine has a special hand rest. This device is a support for the cutting tool. Since the motor asynchronously rotates the workpiece in only one direction, during this process, when in contact with the cutting tool, the latter is pressed against the tool rest.

This is interesting: the handpiece has a special recess or hole where the operator inserts the cutting tool.

If this part were not included in the package, then the strong revolutions transmitted by the drive to the spindle would have knocked the cutter out of the operator's hands. This would result in damage to the machine or injury to the user.

Important! The machine comes with 2 handrests with different lengths - 20 and 40 cm.

Bed STD-120M

Under the STD-120M equipment, the manufacturer uses a special cast iron frame. It is mounted on two legs. It has a stand, and serves as a base, where absolutely all nodes of the woodworking machine are fixed. The headstock of the equipment is attached to the left.

In all other directions, the holder and the handpiece cling to the frame in different positions. The tailstock is mobile, which makes it possible to move and dismantle it for work with cutting recesses in the workpiece.

Security STD-120M

To ensure the safety of the operator while working on the machine, a special protective screen made of high-strength plastic is used. It allows you to provide the proper level of protection against the ingress of chips and chips.

Important! It is necessary to work at the machine in overalls, which include an apron and goggles.

In addition to the plastic screen, the machine has special air vents to reduce the ingress of dust into the respiratory tract. Thus, the manufacturer managed to significantly reduce the level of dust generated during the work of a person behind the equipment.

Set of chisels and cutters

All cutting tools that are included in the STD-120M package can be divided into 2 types:

• Reyers;
• Meiseli.

The former are shaped like grooved cutters, in the manner of semicircular chisels. Meisel, on the contrary, is presented in the form of a chisel with a flat cutting part.

User manual

To avoid injury and ensure the longevity and serviceability of the equipment, the operator should know how to operate it correctly. The STD-120M machine manual has a sufficient number of rules that must be followed for the full use of all functionality.

To increase stability

The equipment will best be mounted on a steel, concreted or bolted table. So, during the operation of the engine there will be no vibrations and fluctuations of the working surfaces, which will provide a perfectly even cut along with accuracy. The height of the countertop is recommended from 60 to 80 cm.

Important! It is strictly forbidden to work in a room with a slippery floor. The floor covering around the machine must be stable and preferably rubberized.

If parquet is used in your home workshop, you automatically receive protection against electric shock damage during a flashover. But, in order to surely protect yourself from this, you should put a rubber mat under your feet.

For the preparation, there are also a number of requirements

1. Any wooden blank must be free from cracks or knots.
2. The humidity of the tree is not higher than 20%.
3. The larger the part, the lower the rotation speed.
4. Once a year or after 500 hours of operation, change the lubricant of the working elements of the machine.
5. Once a year, carry out a comprehensive inspection and repair in case of damage.

By following these simple requirements, the owner of the machine will be able to maintain its performance for a very long time.

Kinematic scheme of equipment

Kinematic scheme

In training rooms or production workshops there are milling machines with different devices and equipment. To understand how they differ, they are always accompanied by diagrams or a photo.

Kinematic scheme- this is a conditional image of the equipment, where you can understand the location of certain components that are involved in the transfer of movement to the work surface.

Such schemes make it possible to quickly understand the structure of the equipment in order to correctly and accurately perform settings or calculations for work. Understanding the kinematic diagram of a milling machine of the same type, but with different types of construction, will enable the user to figure out how to operate it.

Electrical diagram of the machine std 120

The electrical circuit of the STD-120M equipment makes it possible to understand how to connect it during self-twisting or repairing individual components. From the diagram attached above, it can be understood that the woodworking machine is connected to a three-phase network with an operating voltage of 380 V. There must be a cable with a solidly grounded neutral. A special electrical cabinet houses the light transformer. It steps down the voltage from 380V to 24V.

An asynchronous motor is a machine drive. The control panel is located on the headstock.

Important! It is strictly forbidden to work without grounding. Therefore, before each start-up of the equipment, the quality and integrity of the cable should be checked.

How to choose the right one to buy a used machine

If you decide to choose BOO-equipment, it is necessary to check its integrity at a meeting with the seller. On the Avito, the cost of such a machine ranges from 12,000 to 17,000 rubles.

• Technical condition of working surfaces;
• Behavior during start-up and operation of equipment;
• Availability of accessories for the machine.

Important! Let you buy cutting tools, but if the machine does not have a handyman, let the seller find a way out of this situation.

If you are ready to pay a turner to turn the model according to dimensions, please, you can buy. But it is better to let the seller deal with these issues.

The STD 120m wood lathe can often be seen in school workshops and in the carpentry of specialized schools. Its key task is to teach pupils or students the nature and principles of working with machine tools, the features of processing wooden blanks. At the same time, this device has good technical characteristics, which make it useful even in small woodworking enterprises.

Description

This lathe can perform the following functions:

1. Cutting.
2. Turning.
3. Drilling work.
4. Creation of grooves.
5. Processing the ends of the workpieces.

Fine work on this machine is performed at high speeds, using turning tools or other abrasive-type tools. Blanks can also be processed in draft mode. To do this, switch the device to low speed and use a semicircular chisel. More details about the additional functions of the machine can be found in its passport.

In addition to the characteristics listed above, this unit has other features that determine the specifics of its application:

• The machine is equipped with local lighting, which greatly speeds up the work and makes it safer.
• The ease of use of the button block was achieved due to its placement on the headstock.
• To eliminate production waste, the design of the machine provides for the possibility of installing a dust extraction unit. It is noteworthy that one such unit can be installed on two devices at once.
• The machine is equipped with a protective fence with a special window for monitoring the working area of ​​the machine. The window is made of flexible transparent plastic. Thanks to this solution, it was possible to protect most of the operator's body.
• The intensity of rotation of the workpiece can be changed by transferring the belt along different shaft streams. It should be noted that the block in which the transfer is carried out is protected from penetration during the operation of the motor.

With its ease of use and high level of safety, this machine is perfect for training beginner carpenters. On the other hand, these characteristics do not interfere with the use of the machine in small businesses and home workshops.

The figure shows the structural features of the apparatus.

1. Electric motor.
2. Button-switch.
3. Broadcast.
4. Spindle. The knot is made of steel in the form of a shaft. On the right side of the spindle, a thread is made for mounting a cartridge and other devices, and on the left side, a two-stage drive pulley is installed, which is driven through a V-belt drive from an electric motor. The spindle is controlled from the headstock panel.
5. Grandmother front. The body of this assembly is made of cast iron with a bore for two bearings of a radial-spherical type. The headstock performs the function of fastening the workpiece and transmits rotational motion to it.
6. Button system. This node of the machine allows the operator to control its work. As you can see in the figure, the button block is mounted on the headstock.
7. local lighting.
8. Frame.
9. Handyman.
10. The screen is protective. Significantly reduces the risk of injury while working with the device. At the same time, thanks to the viewing window, the operator observes the working area and clearly sees how the part should be processed.
11. Handle for fixation.
12. Fencing. This protective device covers the mechanical assembly of the electromechanical drive. The system is equipped with an automatic lid release lock during operation to prevent the operator's fingers from getting caught in the drive mechanisms. If you try to open the lid while the machine is running, the electric motor will stop instantly.
13. Back grandma.
14. Flywheel.
15. Bed. The unit is made by casting with the use of support elements, which significantly increases the reliability and service life of the device. The bed is installed on the base and tightly attached to it. Otherwise, the accuracy of workpiece processing will be significantly reduced due to vibrations during operation.
16. Support.
17. Fixing nut.
18. Pinol.
19. Center.
20. Brake handle.
21. Carriage.
22. Double nut type.
23. Wooden platform.
24. Support bars.
25. Slot for industrial waste.

The electrical equipment of the machine is designed to operate from a three-phase network with an alternating current and a voltage of 380 V. For normal operation of the autonomous lighting of the machine, a special transformer is installed in the control unit of the machine, which converts the voltage in a ratio of 380/24.

The motor of the machine is of an asynchronous type, and its operation is controlled from a panel on the headstock. An experienced craftsman should connect the machine to the network and set it up, only after that you should start operating the machine in normal mode.

Technical indicators

The std120m lathe has fairly good technical performance, especially given its specifics and dimensions:

• length - 125 cm;
• height - 55 cm;
• width - 57.5 cm;
• weight - 100 kg.

Key parameters of processed workpieces:

1. The maximum length of the part that is installed in the centers is 50 cm.
2. The maximum diameter of the part is 19 cm.
3. The maximum turning length is 45 cm.

Spindle parameters:

• number of speeds - 2;
• rotation speed - 1100-2150 rpm.

It is worth noting that the height of the centers of the machine is 12 centimeters. Electrical equipment operates with a voltage of 380 V and a frequency of 50 Hz. The device has only one electric motor with a rated power of 0.4 kW.

Video: turning a file handle on a STD 120M woodworking lathe.

Advantages and disadvantages

When discussing the pros and cons of the STD 120m machine, it should be borne in mind that it was primarily created for educational purposes, and the fact that it is also used in some small enterprises already indicates the quality of its assembly and functionality. In addition, the advantages of the machine include:

1. Long operating time. The simplicity of the design in itself makes it possible for the unit to work for a long time, but if all the components of the machine are carefully and timely maintained, the period of operation of the machine will increase significantly.
2. Relatively small dimensions. This is especially important for classrooms in which several devices must be installed at once.
3. High level of security. An indispensable quality for any device that beginners work with. At the same time, a high level of protection will never be superfluous for those who already have experience and decide to purchase this machine for their own needs.
4. The usefulness of training in turning on this machine is guaranteed by the presence of all necessary devices and functions.

Like any other device, this device has a number of disadvantages:

• The inability to connect to a network with a voltage of 220 V significantly limits the scope of the unit.
• Quite small parameters of the processed workpieces reduce the functionality of the device.
• The presence of the device only two speeds adversely affects the quality of processing parts.

STD-120M is a wood lathe designed for processing small-sized elements from different types of wood. The unit has advantageous features that distinguish it from its predecessor, consisting in the fact that critical working areas are protected by a fence and equipped with local lighting. In addition, the main electrical circuit has been modernized, a system for reducing vibration and noise levels has been provided, and an installation has been developed to remove dust and chips by mechanized means.

Purpose

The STD-120M school turning machine is used for light woodworking through central interaction, using a faceplate and a chuck, as well as for elementary drilling. Its functionality includes the following:

• Sharpening of cylindrical and profile rotating elements.
• Ability to trim, round and cut workpieces at different angles.
• Turning on the marked profile.
• drilling.
• Processing of flat surfaces of diameter in a decorative and profile plan using a faceplate.

The STD-120M is put into operation by starting the electric power plant. The motor is located on the left side of the unit. Torque is transmitted through belt interaction. This process is facilitated by a pair of pulleys: the first is mounted on the motor shaft, the second is mounted on the headstock spindle.

Arrangement

Machine STD-120M has some features of the device, namely:

• The speed mode of rotation is converted by throwing the belt onto certain grooves of the shafts.
• The control unit with buttons is located on the headstock, which provides the most convenient access to control during operation.
• Spindle-type nozzles can be changed, they are included in the standard equipment.
• The working area is protected by additional curtains with transparent windows.
• Chips and other debris can be removed using an optionally connected cleaning unit.

To increase the accuracy of the operations carried out allows special lighting, the operation of which is controlled by a step-down transformer. Electrical interlocking of the belt drive design with a switch increases operational safety.

Front headstock of the unit

This unit of the STD-120M turning unit is used for mounting and fixing the workpiece with subsequent transfer of torque to it. This element consists of a one-piece cast iron body of an open type. It has a pair of holes bored along the axes, which serve to accommodate radial, spherically made bearings.

The working spindle is a shaped shaft made of steel, which has a thread on the right for mounting a chuck, washer and other special attachments that fix and process the workpiece. At the left end there is a two-stage pulley-type drive, activated by means of a V-belt drive from an electric motor. On both sides of the headstock there are hatches with felt padding. The start and stop of the spindle is carried out using a control unit located on the body.

Rear element

This part of the STD-120M machine provides support when servicing long products, as well as fixing the chuck, drills directly and other tools. The rear element of the device consists of a frame and a quill sliding along the guide grooves of the body.

On one side of the movable sleeve there is a hole adjusted to a cone, where a back stop, a chuck or a drill with an appropriate end switch is placed. From the opposite side, a bushing having an internal thread is inserted by pressing. The set screw ensures easy movement of the quill and prevents it from rotating around its own axis.

The torque redistribution element is combined with a threaded bushing, on one end of which a flywheel is installed, fixed with a nut. The quill is fastened in the required position with a clamping handle. The tailstock is fixed with a nut, a cracker (washer) and a bolt. Special holes are provided in the body for lubrication of working elements.

Basic and removable fixtures

The STD-120M woodworking machine is equipped with several basic elements, namely:

Electrical equipment and technical parameters

Regarding the electrical equipment of the turning unit, it can be noted that there is a connection to an AC network with three phases (380 V) with a neutral that is tightly grounded. There is also a lighting transformer in the switch cabinet.

Technical characteristics of the machine are given in the table:

Operational Features

The STD-120M wood lathe does not belong to the category of professional equipment, its main purpose is to familiarize students with the basics of a turner. He is subject to increased security measures.

To ensure the stability of the processing tool, it is better to make the base steel or concrete. Its height must be at least 60 centimeters.

In addition, some operational features should be considered:

• The wood blank must be free of cracks and knots.
• Humidity of the part is allowed no higher than 20 percent.
• Large items must be processed at minimum speed.
• At least once a year or after five hundred hours of operation, lubricate moving parts, check equipment for deformation and malfunctions.

Before carrying out repair work and maintenance of the machine, you should study its device, as well as read the operating manual in detail.

Conclusion

The turning unit in question is designed for processing wooden blanks and drilling holes. Its main purpose is home use, training of beginners and schoolchildren. When operating the equipment, it is necessary to observe safety precautions and follow the recommendations specified in the instructions.

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Overview of the STD-120M wood lathe

The STD 120m wood lathe can often be seen in school workshops and in the carpentry of specialized schools. Its key task is to teach pupils or students the nature and principles of working with machine tools, the features of processing wooden blanks. At the same time, this device has good technical characteristics, which make it useful even in small woodworking enterprises.

Description

This lathe can perform the following functions:

1. Cutting.
2. Turning.
3. Drilling work.
4. Creation of grooves.
5. Processing the ends of the workpieces.

Fine work on this machine is performed at high speeds, using turning tools or other abrasive-type tools. Blanks can also be processed in draft mode. To do this, switch the device to low speed and use a semicircular chisel. More details about the additional functions of the machine can be found in its passport.

In addition to the characteristics listed above, this unit has other features that determine the specifics of its application:

• The machine is equipped with local lighting, which greatly speeds up the work and makes it safer.
• The ease of use of the button block was achieved due to its placement on the headstock.
• To eliminate production waste, the design of the machine provides for the possibility of installing a dust extraction unit. It is noteworthy that one such unit can be installed on two devices at once.
• The machine is equipped with a protective fence with a special window for monitoring the working area of ​​the machine. The window is made of flexible transparent plastic. Thanks to this solution, it was possible to protect most of the operator's body.
• The intensity of rotation of the workpiece can be changed by transferring the belt along different shaft streams. It should be noted that the block in which the transfer is carried out is protected from penetration during the operation of the motor.

With its ease of use and high level of safety, this machine is perfect for training beginner carpenters. On the other hand, these characteristics do not interfere with the use of the machine in small businesses and home workshops.

The figure shows the structural features of the apparatus.

1. Electric motor.
2. Button-switch.
3. Broadcast.
4. Spindle. The knot is made of steel in the form of a shaft. On the right side of the spindle, a thread is made for mounting a cartridge and other devices, and on the left side, a two-stage drive pulley is installed, which is driven through a V-belt drive from an electric motor. The spindle is controlled from the headstock panel.
5. Grandmother front. The body of this assembly is made of cast iron with a bore for two bearings of a radial-spherical type. The headstock performs the function of fastening the workpiece and transmits rotational motion to it.
6. Button system. This node of the machine allows the operator to control its work. As you can see in the figure, the button block is mounted on the headstock.
7. local lighting.
8. Frame.
9. Handyman.
10. The screen is protective. Significantly reduces the risk of injury while working with the device. At the same time, thanks to the viewing window, the operator observes the working area and clearly sees how the part should be processed.
11. Handle for fixation.
12. Fencing. This protective device covers the mechanical assembly of the electromechanical drive. The system is equipped with an automatic lid release lock during operation to prevent the operator's fingers from getting caught in the drive mechanisms. If you try to open the lid while the machine is running, the electric motor will stop instantly.
13. Back grandma.
14. Flywheel.
15. Bed. The unit is made by casting with the use of support elements, which significantly increases the reliability and service life of the device. The bed is installed on the base and tightly attached to it. Otherwise, the accuracy of workpiece processing will be significantly reduced due to vibrations during operation.
16. Support.
17. Fixing nut.
18. Pinol.
19. Center.
20. Brake handle.
21. Carriage.
22. Double nut type.
23. Wooden platform.
24. Support bars.
25. Slot for industrial waste.

The electrical equipment of the machine is designed to operate from a three-phase network with an alternating current and a voltage of 380 V. For normal operation of the autonomous lighting of the machine, a special transformer is installed in the control unit of the machine, which converts the voltage in a ratio of 380/24.

The motor of the machine is of an asynchronous type, and its operation is controlled from a panel on the headstock. An experienced craftsman should connect the machine to the network and set it up, only after that you should start operating the machine in normal mode.

The std120m lathe has fairly good technical performance, especially given its specifics and dimensions:

• length - 125 cm;
• height - 55 cm;
• width - 57.5 cm;
• weight - 100 kg.

Key parameters of processed workpieces:

1. The maximum length of the part that is installed in the centers is 50 cm.
2. The maximum diameter of the part is 19 cm.
3. The maximum turning length is 45 cm.

Spindle parameters:

• number of speeds - 2;
• rotation speed - 1100-2150 rpm.

It is worth noting that the height of the centers of the machine is 12 centimeters. Electrical equipment operates with a voltage of 380 V and a frequency of 50 Hz. The device has only one electric motor with a rated power of 0.4 kW.

Video: turning a file handle on a STD 120M woodworking lathe.

Advantages and disadvantages

When discussing the pros and cons of the STD 120m machine, it should be borne in mind that it was primarily created for educational purposes, and the fact that it is also used in some small enterprises already indicates the quality of its assembly and functionality. In addition, the advantages of the machine include:

1. Long operating time. The simplicity of the design in itself makes it possible for the unit to work for a long time, but if all the components of the machine are carefully and timely maintained, the period of operation of the machine will increase significantly.
2. Relatively small dimensions. This is especially important for classrooms in which several devices must be installed at once.
3. High level of security. An indispensable quality for any device that beginners work with. At the same time, a high level of protection will never be superfluous for those who already have experience and decide to purchase this machine for their own needs.
4. The usefulness of training in turning on this machine is guaranteed by the presence of all necessary devices and functions.

Like any other device, this device has a number of disadvantages:

• The inability to connect to a network with a voltage of 220 V significantly limits the scope of the unit.
• Quite small parameters of the processed workpieces reduce the functionality of the device.
• The presence of the device only two speeds adversely affects the quality of processing parts.

metmastanki.ru

Lathe STD 120M for wood

Woodworking machine STD 120 m is present in many carpentry workshops of schools and vocational schools. It is used to teach children and students the principles of processing wooden blanks and making wood parts.

Lathe STD-120M

However, do not think that this is just a tutorial. STD 120 m is a full-fledged lathe, often used for domestic purposes and in small woodworking enterprises.

Purpose of the machine

The good news for the buyer is that the lathe comes complete with all the necessary tools and fixtures needed for woodworking (chisels, cutters, abrasive tools).

This device is designed to perform the following operations with wood blanks:

• cutting;
• turning;
• facing;
• drilling;
• groove cut.

Roughing of long workpieces is carried out at minimum speed using a wide rail (semicircular chisel).

Turning a wooden blank on a machine STD 120m

All finishing operations are carried out at high speed with turning tools or abrasive tools. to the menu

Device features and specifications

See also: characteristics and models of tenoning machines for wood and "Manual for the manufacture of a locksmith's workbench."

The STD 120 m is made on the basis of the STD 120 device. Outwardly, they look like twins, but the specialist will immediately feel the difference.

Unlike its predecessor, STD 120 m is equipped with additional levels of protection for both the engine and the carpenter. In addition, the engine has undergone modernization, which began to work much quieter. to the menu

Wood lathe STD 120 (video)

to the menu

Equipment

1. Bed. This device is equipped with a cast bed with a support element, which greatly improves its characteristics in terms of strength and durability. To increase stability, as well as reduce vibration, the frame is screwed to a wooden base - a table or workbench.
2. Work node. The working unit consists of a headstock and a tailstock, as well as a handpiece with a holder for installing and uniform movement of an abrasive or cutting tool along the workpiece.
3. Protective cover with viewing window. The casing closes the working area to avoid injury, the viewing window allows the carpenter to see where, what and how to remove from the workpiece.
4. Electromechanical drive. This part of the lathe is designed directly for the rotation of a wooden workpiece. It includes an electric motor with a rotating shaft. This part of the mechanism also includes two two-stage pulleys, one of which is mounted on the shaft, the other on the headstock spindle and a V-belt. This device allows you to switch the speed of the machine by transferring the belt from one pulley stream to another.
5. Button block. This part of the unit is designed to control the machine. The button block is mounted on the headstock.
6. Local lighting fixture mounted on the body.
7. Replaceable spindle nozzles. Such spare parts are needed to install blanks of different lengths and diameters on a lathe. These include a central fork with a chuck for setting and fixing short workpieces and a faceplate for clamping wooden workpieces of large diameter but short length.
8. Protective fence. This part of the structure covers the mechanical part of the electromechanical drive. It is equipped with an electric lock to open the lid to prevent fingers from getting into the rotating pulleys and belt during the turning process. In the event of an attempt to open the cover while the engine is running, the latter stops in less than 1 second.

See also: "What is a winding machine for transformers?".

Device Features

The woodworking lathe STD 120 m, as well as the folding machine STD 11019m, is optimal for training and work of beginner locksmiths.

Scheme of the fragment device (tailstock) of the machine STD 120m

It is extremely secure and has the following features:

• the push-button control unit is located on the headstock, which makes it as accessible as possible to the user;
• the device is equipped with a protective fence with a viewing window. The viewing window is made of soft elastic plastic, the protective skirt is made of tarpaulin. Thus, in the process of work, only the carpenter's hands are in the working area;
• by shifting the belt to different grooves of the shaft, it is possible to change the speed of rotation of the workpiece. The transfer unit itself is protected from intrusion while the engine is running;
• to absorb dust and chips, a dust extraction unit can be additionally installed. Installation of one block is possible at once on two machines;
• The lathe is equipped with a local lighting circuit, which greatly simplifies the work. To power it, a transformer is provided that lowers the voltage.

Specifications

To fully and safely use the device, you need to carefully study its technical characteristics:

• unit weight 100 kg;
• dimensions: 1250*575*550 mm;
• the lathe is connected to a 380 V electrical network;
• unit power 0.4 kW;
• the maximum diameter of a wooden workpiece is 190 mm;
• the maximum length of the workpiece is 500 mm;
• number of shaft speeds: 2;
• the spindle speed range is within 1100 - 2150 rpm;

Pros and cons

Before talking about the advantages and disadvantages of this unit, it is necessary to recall that this device is intended, first of all, for training carpenters.

The small dimensions of the machine allow it to be installed in small workshops

Among the advantages should be highlighted:

• small dimensions, which allows you to place the required number of machines in one classroom;
• durability of the unit;
• maximum security;
• the presence of all the necessary tools and functions for learning.

If we talk about this machine as a training one, it is unlikely that it will be possible to find shortcomings. If we consider it as a full-fledged lathe, the following should be noted:

• three-phase motor (impossibility to power from 220 V mains);
• the maximum length of the workpiece is 500mm (it will not work to make a holder for a shovel);
• only two speeds available.

Operating rules

The woodworking lathe of the STD 120 m model must be installed and tightly fastened with bolts to a wooden horizontal surface (table, workbench) at a height of 600 - 800 mm from the floor.

During operation, the protective screen must be lowered. If the machine does not have a chip catcher, the canvas skirt must also be lowered. Chips from the working area should be regularly removed, and the screen should be wiped with a clean, dry cloth.

Machine STD 120 m must be installed and tightly fastened to the frame with bolts

To switch speeds, remove chips, trim or measure the workpiece, lubricate the units, turn off the machine and wait for the spindle to stop completely.

At the end of the work, the lathe must be disconnected from the mains and loosen the tension of the V-belt.

After that, the working area must be thoroughly cleaned of chips and the workplace cleaned.

Place all tools in a storage box. Be sure to apply a neutral lubricant to unpainted areas such as the guide bed.

At least once a year or after 500 hours of operation, check the lubrication of all rotating parts.

Examples of products that can be made on the machine STD 120m

In case of absence, contamination or darkening of the lubricant, it must be replaced. to the menu

Harvest Requirements

• a wooden blank must have a diameter larger than the future product by at least 10 mm.
• it can be in the form of a bar with a square section or a round section. If the workpiece initially has a square section, it is better to cut the corners with a planer to reduce vibration and runout;
• wood used for harvesting must be dried. The maximum allowable percentage of humidity is 20-25%;
• it is not allowed to use wood blanks that have knots or chips, as well as decentered (deformed) during the drying process;

Features of the repair of the machine STD 120 m

This device requires a standard set of maintenance and repair work: periodic lubrication of rotating parts and replacement of worn parts.

It is strongly not recommended to try to disassemble and repair the engine yourself.

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STD-120M, std-120 Wood lathe. Passport, diagrams, description, characteristics

The manufacturer of the wood lathe std-120m is IP Chuprakov Roman Viktorovich, the city of Kirov. Website address: https://std120.ru

The STD-120M wood lathe is designed for the manufacture of small-sized wood parts. It compares favorably with its predecessor - the STD-120 machine, primarily in that the injury-prone areas have a protective fence, the workplace is equipped with local lighting, the electrical control circuit has been improved, measures have been taken to reduce the level of noise and vibration, and a system for mechanized waste disposal has been specially developed - dust-chip installation.

The training wood lathe STD-120M is designed to perform light turning work on wood and in centers, on a faceplate or in a chuck, as well as to perform simple drilling work:

• turning of cylindrical and profile bodies of revolution
• facing, rounding and cutting off workpieces at various angles
• internal turning according to a given profile and drilling
• profile and decorative processing of flat surfaces of large diameter on a faceplate (such as a plate, cup)

STD-120M General view of a woodworking lathe

STD-120M General view of a woodworking lathe without a protective cover and fence

The composition of the STD-120M lathe (Fig. 2)

The machine consists of the following assembly units and parts:

1. electric motor
2. push button switch
3. V-belt transmission
4. spindle
5. headstock
6. button block
7. lamp
8. body with fork center
9. handyman
10. protective screen
11. clamp handle
12. machine guard
13. tailstock
14. flywheel
15. bed with guides
16. supporting leg
17. fixing nut
18. pinole
19. center
20. stopper handle
21. holder (carriage)
22. double nut
23. wooden platform
24. support bars
25. waste suction slot

Scheme kinematic lathe STD-120M

Headstock of STD-120M lathe

The design of the headstock of the STD-120M lathe

The headstock of the STD-120M lathe is used to install and fasten the workpiece and transmit rotational motion to it.

The headstock consists of a shaped body cast from cast iron. It has two holes coaxially bored for radial spherical bearings.

The spindle is a steel shaped shaft, on the right end of which a thread is cut for screwing the cartridge, faceplate and other special devices for fixing workpieces.

At the left end of the spindle, a two-stage drive pulley is mounted, which receives movement through a V-belt drive from an electric motor. Caps with felt packings are attached to the headstock on both sides.

To start and stop the spindle of the STD-120M machine, a control post is located on the body of the headstock, and a lamp is placed on top.

V-belt transmission. A two-stage pulley is rigidly fixed to the motor shaft of the STD-120m lathe, which, using a V-belt, transmits rotation to a two-stage pulley mounted on the spindle of the STD-120 machine. By rearranging the belt from one step to another, you can change the spindle speed. The V-belt transmission of the STD-120m machine is closed with a metal fence, the opening cover of which is interlocked with an electric motor through a limit switch. When it is opened, the electric motor is turned off and the spindle of the STD-120m machine stops.

A two-stage pulley is rigidly fixed on the motor shaft, which, using a V-belt, transmits rotation to a two-stage pulley mounted on the machine spindle. The V-belt transmission is closed with a metal guard, the opening cover of which is interlocked with the electric motor through the limit switch so that when it is opened, the electric motor is switched off and the machine stops. The guard cover is locked with a screw.

Devices for fixing and processing workpieces on a STD-120M lathe

• a - spiral self-centering chuck
• b - cup cartridge
• c - trident
• g - vice chuck
• d - faceplate
• e - cylindrical cartridge
• g - body with a fork center
• h - special cartridge with teeth
• 1 - teeth
• 2 - central prong
• 3 - fencing of the teeth
• 4 - cartridge cone

Depending on the type of workpiece and the work performed, one of the devices included in the machine kit must be installed on the spindle of the STD-120m machine: a chuck, a center fork or a faceplate. The STD-120M chuck is used to secure short workpieces when machining from the end. The center fork of the STD-120 machine is designed to secure long wooden workpieces during processing in centers. The faceplate of the STD-120m machine is a metal disk, in the center of which a boss with an internal thread protrudes for screwing onto the spindle.

Depending on the shape and purpose of the future part, the workpiece is installed in the centers of the headstock and tailstock or on the headstock spindle. In all cases, the workpiece should be positioned so that it receives the rotational movement of the spindle. For these purposes, there are many devices that can be divided into the following groups: for fixing the workpiece in the centers, for fixing the workpiece by the outer surface and for fixing the workpiece by the holes.

To fix the workpiece in the centers, the trident was most widely used. One end of the trident has the shape of a cone corresponding to the cone in the headstock spindle, and the other end has the shape of a trident fork. When fixing the workpiece, one of its ends with the intended groove is inserted into the trident, and the second is pressed by the center of the tailstock quill.

To secure the workpiece to the outer surface, the following devices are used: cup, vice and cam chucks, faceplate.

The cup chuck has a cylindrical cavity on one side, and a conical shank on the other for installation in the headstock spindle. The rounded part of the workpiece is tightly inserted (nailed) into the cavity of the cartridge or clamped with bolts.

A vise cartridge is used in cases where part of the product has the shape of a quadrangle (faceted surface). For processing, the workpiece is inserted into the vise of the cartridge and clamped with a screw. Cup and vice chucks sometimes have screw threads instead of taper shanks for mounting on the outside of the spindle.

To fasten products to the outer surface, three-jaw self-centering and four-jaw chucks with independent movement of the jaws are also used. The three-jaw chuck provides fast and reliable clamping and centering of the workpiece due to the simultaneous radial movement of the jaws. Each three-jaw chuck can be used to secure the product both on the outer and inner surfaces. To do this, such cartridges are supplied with two sets of cams.

For the tailstock, it is advisable to use a self-rotating center (on bearings) with a Morse taper.

On the faceplate, large workpieces and flat discs are processed, for which holes are provided in it, through which the workpiece is fixed with screws. Please note that the screws must not protrude onto the workpiece surface to be machined. The faceplate is screwed onto the spindle after the workpiece is fixed.

Mass application for fastening products from the hole has a variety of frames. Frame designs are chosen depending on the purpose of the product, they are mainly of two types - corrugated and collet.

For the manufacture on a lathe for processing various parts, a cutter-saw is used. This device can be used for cutting rings from aluminum and brass tubes (on a metal lathe) and for cutting blanks from plastics, plexiglass and other materials.

During operation, the cutter-saw is installed on the machine tool so that the bar rests on the workpiece surface to be machined. Then the torch is evenly fed forward. The limiter makes it possible to set the required depth of turning in cases where the workpiece is not cut off at all.

The device is easy to make. The cutter-saw is made from a hacksaw blade. The rest of the parts are made of ornamental steel.

A device for grinding turning products is used when grinding finished products on a lathe. It allows you to achieve good quality grinding, convenient and safe to use. This fixture is easy to make in any workshop. A plate of porous rubber or felt is glued onto the bar, on top of which a sanding paper is applied (preferably on a fabric base). The edges are clamped between the slats with a wing nut. Hooks-limiters provide safe work. Hooks are attached to the base with rivets. The device can also be used for polishing products.

Tailstock of STD-120M lathe

The tailstock of the STD-120 machine serves as a support when processing long workpieces, supporting them with the rear center, and for fixing the chuck for drills, the drills themselves and other tools in the processing of holes in its quill. The tailstock STD-120 consists of a body with a quill that slides along the frame guides. The tailstock of the STD-120 machine is fixed on the bed rails.

On the one hand, the quill has a hole bored into a Morse taper, into which the rear center, chucks or drills with a shank with the same taper are inserted. On the other hand, a bushing with an internal thread is pressed in. The quill moves freely in the hole in the upper part of the body. From rotation around its axis, the quill protects the set screw, which enters the groove on the outer surface of the quill.

A quill (feed) screw is paired with a threaded bushing, at one end of which a flywheel is mounted on a key and secured with a nut. Rotating with the flywheel, the quill screw moves the quill through the threaded bushing.

Fixing the quill in the desired position is carried out by the clamp handle. The tailstock is fixed with a nut on a bed with a cracker and a bolt, for screwing which a combination wrench is attached. To lubricate the quill and screw, there are oil-conducting holes in the body of the headstock and quill.

Tool holder with a lathe holder STD-120

The toolholder with the holder of the STD-120M machine serves as a support for the cutting tool. The hand rest holder consists of a rectangular bar with a tide, into the hole of which the hand rest rod is inserted. The handpiece of the STD-120 machine is fixed at the desired height and in a certain position with a handle. The hand rest holder is fixed on the guides of the STD-120M machine bed with a special screw and a handle through a washer. To work with short and long workpieces, the machine is equipped with two toolholders 200 mm and 400 mm long.

Lathe bed STD-120m

The STD-120m cast iron machine bed on two legs is mounted on a stand and is the base on which the main components of the STD-120M machine are mounted. The headstock of the machine is fixed on the left side of the frame. The holder with a handpiece and the tailstock of the machine move along the guides of the bed and are fixed in a certain position.

Fencing of the cutting zone of the STD-120M machine

The cutting zone fencing on the STD-120m machine serves to protect the worker from flying chips and reduce the concentration of dust in the breathing zone of the worker to the established sanitary standards. It consists of a metal casing and folding screens.

Devices for installation and fastening of workpieces of the STD-120 lathe

cutting tools

The machine is equipped with two types of cutting tools: rave and maizol. Reyers for the STD-120 machine are a grooved cutter, similar in shape to a semicircular carpentry chisel. Meisels for the STD-120 machine are cutters that have the shape of a flat chisel with a blade.

Schematic diagram of a woodworking lathe STD-120M

Electrical equipment for woodworking lathe STD-120M

The electrical equipment of the STD-120 lathe is designed to be connected to a three-phase alternating current network with a voltage of 380 V with a solidly grounded neutral. In the control cabinet of the STD-120 lathe there is also a 380/24 V lighting transformer. An asynchronous motor serves as a machine drive. The machine is controlled from the control post located on the headstock of the machine. The connection of the electrical equipment of the STD-120M lathe to a three-phase network with a voltage of 380 V and its grounding is carried out by the Customer. Turning on the machine without connecting it to the ground line is not allowed.

Technical characteristics of the STD-120M lathe

Catalog directory of woodworking machines

Passports of woodworking machines

The unit is designed for processing short wooden blanks. The small size of the unit allows it to be placed in small spaces. The equipment is quite simple, so it is called a school machine. The unit is especially appreciated where high accuracy is not required. Critical points of the working area are protected. Directional lighting of the workpiece, improved electrical circuit, waste disposal unit distinguish this equipment from analogues.

Purpose

The machine is used for processing rotating parts by exposing them to cutting tools. The workpiece is clamped on both sides with a faceplate and a chuck. A cutter is fed into the working area, which has 2 freedoms of movement - along and across the workpiece. If a drill is fixed in the chuck, then an axial hole can be made.

This equipment performs the following operations:

• processing of flat surfaces using a faceplate;
• longitudinal turning of wooden parts;
• facing, rounding and trimming the workpiece at various angles;
• axial drilling.

Advantages and disadvantages

The advantages include the following features:

• mobility;
• durability of components and parts;
• perfect security system;
• the presence of all the devices necessary to complete the full course on working on a lathe.

This setting is suitable for studies, while professionals generally do not use it, because:

• the installed three-phase motor makes it difficult to connect in rooms where a household electrical network is laid;
• the maximum length of the workpiece is 500 mm, which greatly limits the capabilities of the unit;
• two-speed mode does not allow you to perform a number of high-precision work.

Design

One of the attractive features is a fairly simple device. The scheme of the lathe is shown in the figure.

The machine consists of:

• three-phase electric motor,
• front and rear headstock,
• button block,
• assistant,
• spindle
• lantern,
• belt drive,
• fork center.

• fencing screen,
• protective cover,
• bed,
• flywheel,
• pinole,
• carriages,
• latch knobs and nuts,
• sinuses for dumping wood processing waste,
• other small details.

Headstock device

The knot is a shaped iron casting. Two radial bearings are inserted into the bored holes of its body. They are supported by a spindle, which is a connecting shaft between the drive pulley and the faceplate. The pulley transmits the rotation from the engine to the faceplate, chuck or other fixture through the spindle.

At the bottom of the housing is a rotation control unit. A lantern is installed on top.

tailstock

This is the support for the workpiece. The frame moves along the platform on skids. Fix the device with a bolt. Above is a quill - a holder of a conical tip, the sharp end of which enters a wooden blank on one side.

Specifications

The data sheet, which is the main document of turning equipment, contains the following data:

• weight - 100 kg;
• dimensions - 125 × 57.5 × 55 cm;
• power supply of the electric motor from the network with a voltage of 380 V;
• motor power - 0.4 kW;
• workpiece diameter - up to 19 cm, length - up to 50 cm;
• spindle speed - 1100 and 2150 rpm.

Equipment

The delivery set contains a list of a number of items:

• machine STD-120M,
• protective cover with viewing window,
• interchangeable spindle heads.

Operating recommendations

When using a lathe, you must adhere to the following rules:

• The unit must be installed on a support table with a wooden or metal top 600–800 mm high. Fasteners are made with bolts.
• The floor must be covered with rubber before installation.
• During operation, the protective screen must be lowered.
• When cleaning the unit and the area around it, the power supply of the power unit must be turned off.

Device STD-120 m, produced by IP Chuprakov R.V. in the city of Kirov - this is a training machine for woodworking, which can be found in school classrooms for labor, in carpentry workshops of vocational schools and in small woodworking enterprises in Russia, Belarus, Kazakhstan, Ukraine and other countries throughout the post-Soviet space .

Scope of the machine

Turning unit STD 120M is designed to work with small-sized wooden elements. Compared to the previous STD-120, the 120 m machine features improved protection, safety and ergonomics, namely:

• moving elements are covered with a fence;
• the working area is equipped with local lighting;
• improved electrical control circuit;
• a system of mechanical cleaning from dust and chips is provided.

On the machine in question, you can perform simple turning operations for processing wooden products, installing them in centers and in a chuck, as well as the following simple steps:

• turning profile and cylindrical bodies of revolution;
• cutting parts at any angle and rounding;
• drilling and turning inside according to a certain profile;
• cleaning with an abrasive tool of flat parts with a large diameter on the faceplate.

Lathe equipment

Electromechanical drive. This mechanism is directly responsible for the rotation of the processed wood workpiece. It consists of:

• asynchronous electric motor with a rotating shaft;
• V-belt;
• two pulleys;
• working block;
• protective cover;
• beds;
• control unit;
• lamp;
• spindle nozzles;
• protective fence.

Pulleys and working block

One pulley is fixed on the drive shaft, and the second on the rotating part of the headstock.

Thanks to this node, you can change the speed of the machine by throwing the belt from one pulley groove to another.

Working block. This is a node, which consists of two stocks, a holder for fixing and smooth movement of the cutting or abrasive tool, placed in the longitudinal direction relative to the workpiece.

The purpose of the casing and the need for a cast frame

Protective casing with a viewing hole. It closes the work area in order to minimize injuries. The viewing hole is designed so that the carpenter working on the machine can see the wood being processed.

Cast bed with support. This part of the machine is designed to increase the stability of the machine. To reduce vibration during turning, the bed is mounted on a wooden table or workbench. It contains all the working elements of the machine.

Control unit and additional elements

Control block. This machine node is designed to control the unit. The control unit or button assembly is located on the headstock.

Local lighting of the working area. The luminaire is placed on the body STD 120M.

Set of spindle nozzles. These spare parts are necessary for fixing workpieces of various lengths and diameters on the machine. One of these attachments is a clamping fork-chuck for fixing and installing short pieces of wood, the other is for long pieces of wood.

Protective fence. Structural element covering the driving elements of the electromechanical drive. It is equipped with an electrical interlock for opening the hatch of the drive housing in order to prevent fingers from getting into the belt and pulleys moving during operation, as well as automatic engine stop when trying to open the hatch on the housing.

Specifications and some features of operation

The STD 120M wood lathe has relatively good technical parameters, especially considering its specifics and dimensions:

• dimensions - 1250 * 550 * 575 mm;
• weight - 100 kg.

Wood blanks with which parameters can be processed on STD 120M:

• the length of the element installed in the centers is not more than 500 mm;
• workpiece diameter, no more than 190 mm;
• turning value, no more than 450 mm.

Spindle specifications:

• number of speeds - 2;
• rotation speed range - 1100–2150 rpm.

It should be noted that the height of the installation centers is 120 millimeters. Electrical equipment operates from a three-phase electrical network with a frequency of 50 Hz. The turning unit has one electric motor with an initial power of 0.4 kW.

Some features of operation:

• the workpiece to be processed must be free of knots and cracks, and the moisture content of the wood is within 20%;
• large items must be processed at low speed;
• lubrication of moving parts.

Lubrication and inspection of components for defects and damage must be carried out at least once a year or after 500 hours of operation of the unit.

It is structurally possible to independently repair the front and rear headstock.

Advantages and disadvantages

Listing the positive and negative properties of the machine, one should not forget about its educational purpose, and that the STD 120M is also used in some small enterprises, and this already speaks of the quality of its assembly and excellent functionality. The advantages of the machine include the following features:

• long service life;
• relatively small size;
• high level of security;
• complete set and functionality.

Long service life. The simplicity of the unit itself allows it to be used for a long time. However, provided that it is operated in a gentle mode and timely and thorough maintenance is carried out for all its components, its service life can increase several times.

Relatively small sizes. This quality is important for small workshops and classrooms, in which, as a rule, several units need to be mounted at once.

High level of security. The main feature for any equipment designed for beginners. In addition, increased security measures will not be superfluous for more experienced turners.

Complete set and functionality. A property that allows you to fully learn turning on the machine in question.

Like other equipment, the STD 120M machine has its drawbacks:

• the inability to work from a two-phase network, which significantly limits the area of ​​​​use of the installation;
• relatively small sizes of workpieces, limiting the range of possibilities of the device;
• the machine has only two speeds, and this can have a bad effect on the quality of processing wood elements.