Characteristics and passport of the desktop drilling machine 2M112

General information about the equipment

The 2M112 vertical drilling machine, which appeared on the market back in 1980, over the more than thirty-five year history of its existence, has gained fame as the optimal version of drilling equipment for domestic use and small production workshops.

In addition to factories, 2M112 is often found in vocational educational institutions or school workshops, where these models are used as units for training.

Main components of the drilling machine 2M112

2M112 can perform four main production operations: drilling, countersinking, boring and reaming of metal, wood or plastic parts.

The design of this machine allows the operator to select one of five rotation speeds - adjustment is carried out by changing the position of the belt on the pulleys. The depth of the drilled hole is adjusted by circular rotation of the support column.

In general, the 2M112 desktop drilling machine has an extremely simple and utilitarian design, which provides the main advantages of this unit - maximum reliability and ease of operation of the device.

Adjusting elements of the 2M112 machine

This desktop machine has relatively small dimensions and weight - as the passport shows, the device has dimensions of 795 * 390 * 950 millimeters and weighs about 120 kilograms.

Light weight, in comparison with similar stationary drilling machines, allows you to easily transport the device to its destination. The machine itself can be placed either on a regular metalworking table or on a special drilling column, or a special stand for it can be used.

Technical characteristics of the machine 2M112

The main parameter of any drilling device is the maximum diameter of the holes created. The passport of the 2M112 model indicates that for this unit it is 12 millimeters.

This diameter is more than sufficient for domestic use and small-scale production operations, although it is not uncommon to use larger drills on a 2M112 machine.

The rotation speed characteristics of the 2M112, as evidenced by the technical passport, range from 450 to 4500 rpm, while the unit has five operating speeds, which makes it possible to select the most suitable rotation speed for different materials.

The design of the machine provides for the extension of the spindle (class B-18 spindles are used) by 20 centimeters.

Machine 2M112 model 1985

The distance between the spindle and the work plate is adjustable and can range from 20 to 400 millimeters. The working plate of the machine itself is quite spacious, its dimensions are 25 by 25 centimeters, which allows you to conveniently work with large-sized workpieces. The power drive of this model is an electric motor with a power of 550 watts.

Despite the fact that the 2M112 desktop vertical machine is intended for small-scale production and household use, practice shows that it can easily withstand long-term operation under uninterrupted operation conditions.

The excellent technical characteristics of this unit are due to its simple, but effective and reliable design, which will be discussed in detail in the next section of the article.

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Machine characteristics and documentation

The main characteristic of any drilling machine is the maximum diameter of the hole drilled with it. Using the machine model 2M112, according to the passport, it is possible to produce holes in the workpieces with a diameter of up to 12 mm. Holes of this diameter are quite sufficient to carry out drilling work in a home workshop, but in production conditions, larger diameter drills are installed on these machines.

Machine Specifications

Below you can download free technical documentation for the 2M112 machine, namely the machine passport or operating manual.

Data sheet of the tabletop drilling machine 2M112:

The chuck of the 2M112 drilling machine, according to the passport, can rotate at a speed of 450–4500 rpm, and the rotation speed of this unit can be adjusted in 5 steps. The machine is equipped with a B-18 class spindle, the distance from the end of which to the surface of the work table can vary in the range of 0–400 mm.

The dimensions of the work table, on the surface of which there are three T-shaped grooves for fixing the workpiece or a machine vice, are 250x250 mm.

The surface of the machine's work table allows the clamping fixtures to be fixed

To expand the functionality, the drilling machine can be installed on a special stand, which allows the equipment to be used for drilling holes in the ends of parts whose length reaches 1000 mm. An electric motor with a power of 550 W is used as the main drive device on the 2M112 machine.

Despite its small dimensions and not too high power, the tabletop drilling machine of this model can be subjected to long-term and intensive use. Such worthy characteristics are ensured by the simple but effective design of the device.

In a home workshop, the 2M112 machine can be placed on a homemade metal stand

Machine design features

Even from the photo of the 2M112 vertical drilling machine you can understand how simple its design is. So, the components of this unit are:

• a column along which the spindle head moves in the vertical direction;
• a device that ensures clamping of the spindle head in the required position;
• drive motor;
• mechanism responsible for raising the spindle head;
• base plate, the upper part of which is used as a work table;
• a casing that protects the drive mechanism;
• spindle head;
• a mechanism responsible for tensioning the drive belts;
• bracket in which the base of the column is fixed.

Structural elements that provide convenient and efficient control of the operating parameters of the 2M112 drilling machine are:

• handle responsible for manual spindle feed;
• a handle that ensures the required belt tension;
• a handle used to secure the headstock to the column;
• electric buttons, with the help of which the drive motor is started and stopped;
• handle responsible for fixing the sub-motor plate.

The manufacturer of the 2M112 drilling machine specially mounted all the main mechanisms (spindle assembly and belt tensioning mechanism) in a cast iron body to ensure their reliable protection from mechanical damage.

To ensure greater operator convenience, the machine design includes a lighting system for the processing area.

Are you here

The desktop vertical drilling machine model 2M112 is designed for drilling blind and through holes with a diameter of no more than 12 mm and cutting threads up to M12 in small parts made of various materials (cast iron, steel, non-ferrous metals).

Design of a tabletop drilling machine 2M112

Drilling machine structure:

1. Colon;
2. Spindle clamping device;
3. Electric drive of the machine;
4. Spindle raising and lowering mechanism;
5. Bracket;
6. Plate;
7. Protective cover;
8. Spindle;
9. V-belt tension mechanism.

Controls of tabletop drilling machine 2M112

1. Spindle manual feed handle S;
2. V-belt tension handle;
3. Handle for fixing the spindle along the machine column;
4. Handle for axial movement of the spindle along the column;
5. Electric motor control buttons;
6. Handle for fixing the under-engine plate.

Spindle of tabletop drilling machine model 2M112

The majority of the spindle is made up of a cast iron body. It houses the spindle assembly, the belt tensioning mechanism and the local lighting of the machine. An electric motor is mounted at the rear of the machine spindle.

In Fig. Figure 3 shows a spindle assembly, which consists of a spindle 1, which is located in a sleeve 4 on radial ball bearings 3 and 6. The spindle rotates from a sleeve 8 and a pulley 9 through a spline connection. The spindle is fed manually, using a steering wheel, which consists of a gear shaft 5 and a sleeve with a rack 4. The cartridge is removed from the spindle cone using a nut 2.

Setting up, setting up a tabletop drilling machine 2M112

You can use a stop to drill blind holes to a certain depth.

In Fig. The spindle movement scale is shown. By turning the steering wheel, bring the drill to the surface of the workpiece and drill to the depth of the conical sharpening of the drill.

Then release the lock 4 and turn the nut 5 to place the indicator 2 in the “0” position. Turn nut 5, set the required drilling depth and tighten lock 4.

Adjusting the tension of drive belts

During operation, the belts weaken and the torque on the spindle decreases, so the belts should be tensioned. This is done as follows: you need to lift the protective casing covering the belt drive, release the sub-motor plate using handle 6 (Fig. 2), turn button 2 to tighten the belt and again fix the board with handle 6.

About the advantages and disadvantages

For high protection against various damages and breakdowns, the manufacturer has assembled all the important components and mechanisms into a solid cast-iron body. For additional convenience, the unit has a built-in lighting function for the work table and processing area.

The production of the product began in the early eighties. Although more than a decade has passed since then, the popularity of the unit has not diminished . To this day it is in great demand at large enterprises and small private workshops. The 2m112 model is highly valued by specialists of this profile for its reliability, ease of operation and good characteristics.

Even if the 2m112 machine has completely malfunctioned and cannot be restored (which in itself is an extremely rare occurrence), users are looking for a device of the same model. Although Chinese analogues are cheaper, their quality often suffers greatly, and European equipment is an order of magnitude more expensive.

Thanks to its high reliability and good service life, the 2m112 drilling machine is able to perfectly cope with difficult operating conditions of uninterrupted operation.

The simplicity of the design makes it possible to repair it yourself and will not cause any particular difficulties. Nowadays, you can easily find the necessary spare parts and components. So there will be no problems with repairs.

The engine power is quite enough for both industrial organizations and small private enterprises. Considering the relatively affordable price and extremely high reliability due to the long service life, it becomes clear why the machine, developed back in the last century, is so popular.

The 2m112 drilling machine, despite its rather long history of existence, is still in great demand in workshops, vocational schools, and various industries. You might have come across the 2m112 model, as well as its analogues in the form of gs2112, 2n112 and 2a112, in labor lessons at your school. Therefore, let’s look at the 2m112 model in more detail, look at its passport and study the technical characteristics.

1 Functionality, scope of use

The 2M112 desktop drilling machine is household-grade equipment intended for use in repair shops, metalworking shops or small enterprises. These units are capable of working with parts made of steel, non-ferrous alloys, plastic and wood.

The 2M122 vertical drilling machine can perform the following technical operations:

• drilling through and blind holes;
• countersinking;
• reaming;
• deployment;
• thread cutting (inch, metric).

Among the operational advantages of this equipment, which made it one of the most popular drilling units in the USSR, we highlight the comparative simplicity of the design, which ensures ease of control, reliability and long service life.

A special feature of the machine is the use in its design of a 5-speed motor pulley, which gives 5 spindle rotation speeds, which will allow you to select the optimal mode for processing metal of any hardness. The cutting speed is adjusted by changing the position of the belt in the gearbox.

External fork 2M112

The design of this model provides the possibility of using an additional support pedestal, which, when equipped, makes it possible to process the ends of long workpieces (shafts) with a diameter of up to 120 mm and a length of up to 1000 mm.

Among the analogues of this model produced by domestic enterprises, we highlight the common machines ENS12 (produced by the ESZ plant) and GS2112 (Gomel Machine Unit Plant), which have identical characteristics and layout.

1.1 Design features

The 2M112 vertical drilling machine has a standard design consisting of the following components:

1. Column.
2. Headstock clamp.
3. Electric motor.
4. Spindle head lifting device.
5. Bearing bracket.
6. Base plate.
7. Upper part of the housing (casing).
8. Spindle head.
9. Belt tension device.

You can see the location of the structural units in the diagram below.

The main working unit of the machine is the spindle head, made in a prefabricated cast iron body. The housing contains the spindle itself, a belt tensioning device and lamps for local lighting of the working area. The headstock has a rotating configuration - it can be rotated on the column and fixed in the required position. To move it, it is necessary to disable the clamping device (No. 2), the lowering and raising of the headstock is carried out by turning the corresponding lever (No. 4).

Advantages and disadvantages of the device

The fact that the model 2M112 tabletop drilling machine, the design of which was developed more than thirty years ago, can still be found in the equipment of many manufacturing enterprises and home workshops, indicates that specialists value this equipment for its characteristics and advantages.

The popularity of the 2M112 vertical drilling machine is also evidenced by the fact that even after a complete breakdown (which happens extremely rarely), users try to find a unit of a similar model, rather than purchasing cheap and low-quality devices from Chinese manufacturers or expensive European equipment.

Among the most significant advantages that the drilling machine model 2M112 has, it is necessary to highlight the following.

• Thanks to its long service life, the machine is characterized by exceptionally high endurance and is able to be successfully operated even in the most severe conditions.
• Due to the simplicity of the design, the device does not require complex care and special maintenance. Even disassembling such equipment yourself does not cause any particular difficulties.
• On the modern market you can easily find any spare parts and components for the 2M112 machine, so there are no difficulties with the repair of such equipment.
• The power of the electric motor with which this machine is equipped is quite enough to satisfy the needs of both a home craftsman and a small manufacturing enterprise.
• A significant characteristic of the 2M112 machine is its affordable price, which is optimally combined with its reliability, efficiency and ease of use.

The vertical drilling machine of the model in question is not without its shortcomings, which are not mentioned in the passport. The main disadvantage of this equipment is that it is already obsolete. Modern devices of this category, the production of which uses new technological approaches and innovative kinematic schemes, surpass the 2M112 in processing accuracy, efficiency and productivity.

This machine is also inferior to new models in its compactness and ease of use, but such minor shortcomings are compensated by its affordable cost, reliability and ease of maintenance.

Drilling machine 2SS1M: characteristics

The 2SS1M desktop drilling machine can successfully handle drilling and milling a small batch of workpieces. The unit performs drilling operations in steel workpieces, milling non-metals and turning wood.

The unit is designed for domestic use and work in single production.

The machine is equipped with a three-jaw lathe chuck and a clamp with a mounting kit.

Three-jaw lathe chuck

As an option, a device is included that allows turning.

Main technical characteristics of the machine

The characteristics of the unit are quite standard:

Device Description

The 2SS1M drilling machine is a vertical design for desktop installation with a massive base in the form of a plate.

Drilling machine device

The slab support includes:

• Cylindrical stand - it contains a movable work table and a traverse.
• To secure the table, a clamping mechanism with a handle is provided.
• Above the working area of ​​the table there is a quill mounted in a traverse.
• The quill has the ability to move in a vertical plane along a rack and pinion transmission. The quill is lowered by rotating the manual feed handle.
• An electric motor is installed in the opposite part of the traverse of the 2SS1M machine.
• The three-stage pulley of the electric motor and the quill are connected by a belt drive.

Preparing the machine for operation

The specialist needs to know the operating instructions for the unit:

• The machine is secured to a workbench or work table using holes in the base.
• A drill of the required diameter is clamped in a spindle with a chuck.
• The handle moves the quill to its highest position.
• The workpiece is placed on the table and secured with clamps or other equipment.
• By moving the table, you need to establish a gap of at least 5 mm between the top plane of the part and the top of the tool.

The movement of the tool during processing is controlled by the dial ruler. The division value of the reading device is 1 mm, the mark corresponds to the amount of movement of the tool on the part. Before starting processing, you should connect the zero of the dial with the mark on the machine by rotating the dial counterclockwise.

The principle of operation of the electrical circuit

The 2SS1M machine is powered from a 220 V mains voltage. The type of current is alternating, single-phase, and the current frequency is 50 Hz.

After connecting to the network and being completely ready for work, press the start button on the control panel. After electricity is supplied, the inching contact for turning on the starting winding is triggered, and the working winding of the electric motor is started.

When the button is turned off, the terminals on the contactor open, and the starting circuit of the electric motor is turned off.

The equipment is stopped by the red stop button. It is also necessary in an emergency and when stopping the engine unnecessarily. The button prevents damage to the machine drive and injury to the machine operator.

The 2SS1M drilling machine has an electric motor with a rated power of 0.18 kW.

Electric motor with a power of 0.18 kW

Engine speed 1420 rpm. The motor has a class II product with double insulation.

Recommendations for processing

Experts who work with the unit advise craftsmen to adhere to several rules:

• The choice of processing modes is made taking into account the hardness and type of material. High-hardness workpieces are processed at low speeds.
• Large parts are installed on the floor or stand. The traverse is deployed to the desired position.
• Milling of grooves is carried out with a fixed quill. The workpiece is placed along the stop and fed manually.

During the turning operation, a comb is installed in the quill instead of a chuck. A rotating center is fixed into the hole in the worktable. The part being processed is located between them. Processing is carried out with cutters with the installation of a special device.

Spindle type selection

Now let’s introduce specific varieties, note their advantages and characteristic features. They should be taken into account when selecting parts.

With built-in electric motor (electric spindles)

They:

• Contributes to the development of very high speeds. With standard 18,000 - 24,000 rpm, some models can also support operating speeds of 120 thousand rpm.
• They cut very well at high speeds.
• They have limitations in loads - it is dictated by the use of small ball bearings.
• Not suitable for reverse. The absence of such a function makes it very difficult to create some elements, for example, cutting threads.
• Cones or collet clamps are most often used as clamps.

Mechanical with external drive

They:

• Deal with much lower speeds. The standard can be considered from 300 to 8,000 rpm. This is due to the fact that it is quite difficult to set in motion all the bearings, gears and other elements transmitting movement
• Rigidity and load capacity are greater. Why? because you can use not only ball bearings, but also more stable ones - roller bearings. So such equipment can even be used for power milling of titanium or other strong metals.
• There is feedback - provided that a motor with an encoder is installed.
• Tool cones are used instead of collets - the latter do not meet the requirements for fixation rigidity.

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Spindle use: what is it for?

To begin with, we note that the scope of use is as wide as there is a lot of different equipment for metalworking and processing wood and plastic. If the main purpose of the part is to hold the equipment, then, accordingly, the application is based on the features of the toolkit:

• Every power tool that has an attachment cannot do without an electric spindle as a holder.
• A unit is needed for milling and lathes - they, in turn, are very widespread, since with their help you can create numerous products.
• Fixing rolled products for processing is another purpose.

But the most important function remains fixing the equipment. Moreover, the reliability of the fastening is so high that it allows you to achieve maximum rotations and maximum axial load on the shaft.

Sequence of actions during recovery

Repair of a vertical drilling machine consists of the following steps:

• The upper part of the gear shift mechanism is opened and the engine is removed.
• The device for supplying oil to the system is removed.
• The feed mechanism is removed.
• The quill movement shaft is removed and the quill itself is removed from the housing in which it is located.
• The chain and weight are removed and must be replaced.
• Collecting details.

Radial drilling machines are used in small businesses. They are small in size but perform many functions at a reasonable cost. If you take proper care of this equipment, it will last a long time.

Kinematic diagram of a table-top vertical drilling machine 2M112.

The kinematic diagram of the 2M112 vertical drilling machine is shown in the following figure:

The kinematic diagram of the 2M112 table-top vertical drilling machine with good resolution and quality is given in the 2M112 machine passport, a link to which was given above.

Related materials:

• ELL 12XXX. Electric drive. Passport, Manual, Instructions, Description, Characteristics.
• ELL 4XXX. Electric drive. Passport, Manual, Instructions, Description, Characteristics.
• Drawing. 2A135. Vertical drilling machine. Kinematic scheme
• Drawing. IR800PMF4. Horizontal boring machine. Gearbox. Kinematic diagram
• Drawing. VSZ-64M. Vertical milling machine. Kinematic diagram

The following materials:

• 16K20RF3. CNC screw-cutting lathe 2Р22. Passport, Characteristics, Diagram, Manual
• 16A20F3. CNC screw-cutting lathe NTs-31. Electrical automation board diagram
• 16A20F3S39. CNC screw-cutting lathe NTs-31. Electrical automation board diagram
• 24K40AF4-01. CNC coordinate machine TNC-145. Passport, Characteristics, Diagram, Manual
• 24K40SF4-01. CNC coordinate machine TNC-145. Passport, Characteristics, Diagram, Manual

Previous materials:

• 16K20RF3S32. CNC screw-cutting lathe 2Р22. Passport, Characteristics, Diagram, Manual
• 16K25. Screw-cutting lathe. Passport, Specifications, Scheme, Manual, Drawings
• 16K20P. Screw-cutting lathe. Passport, Specifications, Scheme, Manual, Drawings
• 16K20G. Screw-cutting lathe. Passport, Specifications, Scheme, Manual, Drawings
• 2N135 vertical drilling machine: Passport, Characteristics, Diagram, Manual

Classification of spindles by type, size and diameter

There are various bases for classification. The first, and perhaps the main one, is what equipment the unit is intended for. Of course, different machines and electrical equipment require different instruments.

The second principle of differentiation is size. The devices come in different sizes, designed for industrial use and private use. In this regard, a variety of consumable parts are needed - larger and smaller. If you want to replace the spindle on your own machine, then when purchasing you must indicate the number of your equipment, name and year of manufacture (there may be different modifications).

Well, the last, but not intended, classification is by type. Shafts can be:

• Collector. This is a device that includes a high-speed collet roller. The main areas of use are milling machines, as well as engraving operations.
• Specialized for high speeds. They allow you to achieve significant metal processing speeds, therefore increasing productivity. But since good quality can only be achieved with great precision, high-speed models are used mainly only on CNC equipment. You can buy such machines on the website.
• Design with built-in cooling. The cooling system can be supplied through a part or liquid, or cold air. This increases the cutting speed and the degree of surface roughness, and friction becomes less, so wear also comes later.

There is another classification - by manufacturer. Of course, European production is more preferable than Chinese. In Europe, porcelain bearings are often used, which provide very positive performance.

2 Tabletop drilling machine. Purpose and scope

The machine is designed for drilling holes and cutting threads in small parts made of cast iron, steel, non-ferrous alloys and non-metallic materials in industrial enterprises, repair shops and household workshops.

Main technical characteristics of the tabletop drilling machine 2m112

Manufacturer: Kirov Machine Tool Plant.

• Maximum drilling diameter: Ø 12 mm
• Maximum drilling depth: 100 mm
• Maximum height of the workpiece installed on the work table: 400 mm
• Spindle speed limits per minute - (5 steps) 450, 800, 1400, 2500, 4500 rpm
• Spindle end - B18 external shortened Morse taper 2 according to GOST 9953
• Standard drill chuck - Chuck 16-B18 GOST 8522-79, clamping range 3..16 mm
• Electric motor power: 0.55 kW
• Machine weight: 120 kg

The spindle of the 2m112 machine receives five rotation speeds from five-stage drive pulleys, which provides free choice of cutting speeds in the range from 450 to 4500 rpm.

The end of the spindle is an external shortened Morse taper KM2, designation B18 according to GOST 9953 (Shortened tool tapers) - shortened cone: D = 17.780 mm, cone length 37.0 mm.

The shortened cone B18 corresponds to a three-jaw drill chuck of the 16th standard size in accordance with GOST 8522 (Three-jaw drill chucks) with a clamping range from 3 to 16 mm.

An example of a symbol for a 3-jaw drill chuck, size 16, with a connecting conical hole B18:

Cartridge 16-B18 GOST 8522-79

Morse cone instrumental shortened

Tool taper - Morse taper is one of the most widely used tool mounts. It was proposed by Stephen A. Morse around 1864.

The Morse taper is divided into eight sizes - from KM0 to KM7 (in English: MT0-MT7, in German: MK0-MK7).

Morse taper standards: GOST 25557 (Tool cones. Main dimensions), ISO 296, DIN 228. Cones made according to inch and metric standards are interchangeable in everything except the shank thread.

For many applications, the length of the Morse cone turned out to be excessive. Therefore, a standard was introduced for nine standard sizes of shortened Morse cones (B7, B10, B12, B16, B18, B22, B24, B32, B45), these dimensions were obtained by removing the thicker part of the cone. The number in the designation of a short cone is the diameter of the thick part of the cone in mm.

• B7 - Morse cone KM0 , D = 7.067 mm;
• B10 - Morse cone KM1 , D = 10.094 mm. Cartridge 4-B10 (0.5÷4 mm);
• B12 - Morse cone KM1 , D = 12.065 mm. Cartridge 6-B12 (0.5÷6 mm), Cartridge 8-B12 (1÷8 mm);
• B16 - Morse cone KM2 , D = 15.733 mm. Cartridge 10-B16 (1÷10 mm), Cartridge 13-B16 (1÷13 mm);
• B18 - Morse cone KM2 , D = 17.780 mm. Cartridge 16-B18 (3÷16 mm);
• B22 - Morse cone KM3 , D = 21.793 mm. Cartridge 20-B22 (5÷20 mm);
• B24 - Morse cone KM3 , D = 23.825 mm;
• B32 - Morse cone KM4 , D = 31.267 mm;
• B45 - Morse cone KM5 , D = 44.399 mm.

Where D is the diameter of the cone in the main plane.

The drilling depth is measured using a flat scale or stop.

The original design of the belt drive tension allows you to quickly change the position of the belt on the pulleys to obtain the desired cutting speed.

Using a stand to install the machine makes it possible to drill the ends of long parts, such as shafts. The shaft diameter is up to one hundred and twenty millimeters, the length is up to a thousand millimeters.

The 2M112 drilling machine allows you to perform the following operations:

• drilling
• countersinking
• deployment
• reaming
• thread cutting

The 2M112 drilling machine can be equipped with additional accessories to expand its capabilities:

• Vise - indispensable for complex types of processing, for example, small parts or drilling at an angle
• Cross table - indispensable for precise coordinate drilling or light milling
• Turret
• Cooling unit - indispensable for long-term drilling

Analogues of the desktop drilling machine 2M112

ENS12 - Ø12 - Yeysk machine tool plant ESZ, Yeysk

OD71 - Ø12 - Orenburg Machine Tool Plant, Orenburg

NS-12A - Ø12 - Vilnius Machine Tool Plant

NS-12B, NS-12-M - Ø12 - Barnaul Machine Tool Plant

SHUNSS-12 - Ø12 - Mukachevo Machine Tool Plant, village. Kolchino

GS2112 – Ø12 – Gomel Machine Unit Plant

ZIM1330.00.00.001 - Ø12 - Maslennikov Plant, ZIM-Machine Tool Builder, Samara

MP8-1655 - Ø12 - Machine Tool Plant named after. Kirov, Minsk

BS-01 - Ø12 - Bevers, Berdichev

VS3-5016 - Ø12 - Voronezh Machine Tool Plant

R175M - Ø12 - Chistopol AutoSpetsEquipment plant, Chistopol

Р175, Р175М – Ø13 – AutoSpetsEquipment

VI 2-7 - Ø14 - Volgograd Tool Plant

MD-23 – Ø14 – Kaunas Machine Tool Plant

Electrical equipment and electrical circuit of the drilling machine 2M112

Power supply of the drilling machine 2m112 ~380 or ~220 Volts.

Machines manufactured for industrial enterprises and educational institutions have a supply voltage of ~380 V, for mobile workshops - ~220 V. Local lighting has a safe voltage of ~24 V.

All electrical equipment of the machine: switches, transformer, fuses are placed under the work table plate.

Technical characteristics of the electric drive

• Type of spindle drive electric motor - AIR714U3 or 4A71A4U3
• Electric motor – asynchronous three-phase, with a squirrel-cage rotor, height of the axis of rotation 71 mm, weight 8.4 kg
• Spindle drive electric motor power – 0.55 kW
• Spindle drive electric motor speed – 1370 rpm

Initial start-up and instructions for installation and operation

When installing, you must first connect the machine (cooling unit) to the general grounding system using a special bolt located on the machine plate (on the machine of the cooling unit tank).

The supply wires are inserted by the customer through the hole located on the back of the machine plate (on the casing of the cooling unit control panel).

The OSZR (coolant) device is connected autonomously to the supply circuit.

The machine (cooling unit) is connected to the power supply using switch Q1.

First, it is necessary to test run the machine at idle, at all speeds sequentially, starting with the lowest spindle speed. During the first period after starting the machine, it is not recommended to work at maximum spindle speed.

Protection

The stack's electrical equipment is protected from short circuits and overloads by fuses F1, F2, F3.

To prevent self-starting of the electric motor, zero protection is applied using contacts of magnetic starters K1 and K2.

Instructions for servicing the electrical equipment of the machine

Electrical equipment was installed using wires of the following colors:

• power circuits - black
• control circuits - red

To ensure long-term and trouble-free operation of the machine, it is necessary to regularly clean the electric motor, starting and protective equipment from dust, and contacts from carbon deposits; Tighten connections between drives and equipment as necessary.

Electrical diagram of a drilling machine 2m112 at 380V

List of elements for the electrical diagram

• Q1 – Switch PKU3-154I-2037U3 TU 16-526.047-74
• S1 – Switch KE201U3 used. 5 red “P” TU 16-642.015-84
• S2, S3 – Switch KE181U3 used. 2 black “P” TU 16-642.015-84
• E1 – Lamp NKP03-60-0.04UH4 TU 16.876.184-86. Lamp M 024-40 GOST 1182-77
• Ml – Engine AIR 71 A4U3, 380 V, 50 Hz TU 16-525.564-84 or 4A71A4U3 GOST 19523-81
• F1, F2, F3 – Fuse PRS-6U3-P with fuse link PVD1-6U3 TU 16-522.112-74
• K1, K2 – Starter PME-041U4 (380 V, 50 Hz) OST 16.0.536.001-72
• T, Q2, F4 – Device OSZR-0.04-83UHL3 TU 16-6/1 041-84 (coolant)

It is possible to replace components without compromising the quality of the machine.

Electrical diagram of a drilling machine 2m112 at 220V

Control panel for drilling machine 2m112

Installation of the electrical circuit of a drilling machine 2m112

Main advantages

The long-term popularity and widespread use in everyday life and industrial production of the 2M112 machine is associated with its simple and reliable design and universal technical characteristics. This equipment is different:

• long periods of maintenance-free operation and high maintainability (modules can simply be replaced as they wear out);
• high quality and wear resistance of structural elements (mainly steel parts);
• ability to withstand severe temperature changes and air pollution;
• endurance and long continuous working cycle;
• the ability to process products and parts from different materials;
• ease of management and configuration;
• unpretentiousness in care and maintenance;
• “vertical” design, light weight and compact dimensions (can be installed in small spaces and easily moved from place to place).

It should also be noted that there is an optimal combination of quality, performance and cost, which is important when choosing a drilling machine. European equipment of the same class is usually more expensive, while Chinese equipment is inferior in quality, reliability and performance.

General view of the tabletop drilling machine 2M112

Photo of drilling machine 2M112 Kremenchug ITU

Photo of drilling machine 2M112 Kremenchug ITU

Photo of the drilling machine 2M112 of the Kirov Machine Tool Plant

Photo of the drilling machine 2M112 of the Kirov Machine Tool Plant