Technical characteristics of the grinding and grinding machine 3B634

Equipment for detailed processing of products

All this is special equipment for manual sharpening and finishing of various types of tools:

• The floor-standing grinding and grinding machine model 3K634 is equipped with two grinding wheels, type PP 400×50×203, PV 400×50×203.
• With a diameter from 110 to 450 mm or more, depending on the type of equipment and manufacturer.
• The height of the incisors to be sharpened should be in the range of 6–100.
• The permissible sharpening angle of the drill is from 70 to 140 degrees.
• Parts are processed with a universal wheel for detailed polishing of products H – 55 mm, D – 400 mm, Dpos – 50 mm.
• The spindle operates at a maximum speed of 30 m/min and a permissible rotation speed of 1.44 thousand revolutions per minute.
• Machine dimensions – 1000×665×1230 mm.
• The weight of the machine reaches 425 kg depending on the type of unit.

The equipment is mainly used for processing certain batches of parts; manipulations are carried out for finishing and repairing products for subsequent full-fledged work.

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Purpose of the grinding unit

Grinding and grinding machine 3b634

The grinding machine brand 3B 634 is capable of:

• carry out manual finishing and grinding of metal-cutting equipment;
• remove chamfers and burrs;
• perform additional functions for cleaning the edges of small parts.

It is worth noting that the technical characteristics of the model allow you to install a polishing washer on the machine. Then it will be possible to carry out belt grinding and straightening of metal wheels.

3B634 Arrangement of components of a grinding machine

Arrangement of components of the grinding and grinding machine 3B634

3B634 list of components of a grinding machine

1. bed
2. head
3. PP wheel mount (straight profile flat grinding wheel)
4. fastening the PV wheel (flat grinding wheel with a recess on one side)
5. left casing
6. right casing
7. screen
8. rotating table
9. left hand rest

3B634 Specification of components of a grinding machine

1. Bed 3B634.10A.000
2. Head 3B634.22.001
3. Mounting circle PP 3B634.30.002
4. Mounting circle PV 3B634.31.002
5. Left casing 3B634.40.001
6. Right casing 3B634.41.001
7. Screen 3B634.42A.001
8. Right rotary table 3B634.54B.001
9. Left hand rest 3B634.56.001
10. Electrical equipment 3B634.80.000
11. Control panel 3B634.88.000
12. Accessories 3B634.90.000

General description of the model

Grinding and sharpening machine - passport 3b 634. It is based on an electric motor with 2 speeds and located in the inside of the working head. The protruding shaft is a spindle designed to perform rotational movements.

The main components of the structure include:

• frame with cast iron;
• an electrical cabinet located inside the frame, accessible through an opening in the front part;
• hermetically sealed door in the opening;
• grinding wheels, size 40x60x203, attached to the conical part of the adapter flanges and rotating due to crackers (3 pcs.);
• spindles that help balance grinding wheels;
• pipe connected to the hood;
• a bushing in the upper part of the casing as a mount for a protective screen;
• a dust collector located in the lower part of the casing with the ability to collect dust up to 48% and absorb debris from the working area of ​​the equipment;
• turntable;
• a tool rest with the ability to move vertically along the grinding wheel and around its axis.

Grinding and grinding machine Intertool WT-0815

The model also has a special visor located at the top of the equipment on the left, the function of which is to maintain a gap of 6 mm between the built-in lamps and light bulbs (41.6 W) to provide better lighting.

A turntable in the form of a steel plate, attached to cast iron brackets, rotating along curved guides. Thus, when moving horizontally, the table performs a compensation function and does not lead to wear of parts during grinding.

The main thing, when working at the machine, is to ensure that there is no gap between the tool rest and the grinding wheels, the diameter of which must be at least 2.8 mm.

3B634 floor-mounted grinding and grinding machine. Purpose, scope

The sharpening and grinding machine with two wheels, model 3B634, is designed to perform the following operations:

• sharpening of high-speed cutters equipped with carbide plates with a height of up to 100 mm;
• sharpening drills with a diameter of 12 - 50 mm;
• sharpening of metalwork tools;
• removal of burrs, chamfers and other metalwork works;
• grinding parts with an abrasive belt;
• polishing parts

It is not recommended to use the machine for stripping cast and welded parts.

Design features and operating principle of the machine

The main part of the machine is the head (Fig. 5). A two-speed electric motor is mounted in the head, the shaft of which is the spindle of the machine. The stator, rotor and fan impeller are located in a housing with two covers, which house ball bearing spindle supports (Fig. 6).

Ball bearing supports are double high-precision angular contact ball bearings No. B36209L with selected axial play. Axial labyrinth seals are made on the outer sides, and fatty grooves on the inner sides.

The electric motor is cooled by air circulation, for which the head support covers have windows connecting the internal cavities of the frame and the head. For fastening protective covers and some devices (for polishing, belt grinding, etc.) there are two trunnions on the head covers. The head is fastened to the frame using pins.

The frame is a cast iron with an electrical cabinet housed in it. A panel with electrical equipment is reinforced inside the frame. Access to electrical equipment is possible due to the presence of an opening in the front wall, hermetically sealed with a door.

Grinding wheels of types PP 400 x 50 x 203 (flat, straight profile) and PV 400 x 60 x 203 (flat with recess) are installed on the machine The circles are mounted on adapter flanges mounted on the conical part of the spindle. The adapter flanges on the outside have three crackers, with the help of which the grinding wheels are balanced.

Grinding wheels are protected by protective covers made of sheet steel.

On the front wall of the casing there is a gap for access to the grinding wheel. In the upper part of the throat there is a visor, with the help of which a gap of no more than 6 mm is maintained between the visor and the grinding wheel, in the lower part of the throat there is a retractable flap for dust suction. When installing a device for sharpening drills, the flap is completely pushed into the casing. The side wall of the housing is hinged to the housing and can be quickly removed for replacement and inspection of the grinding wheel.

At the bottom of the casing there is a dust collector , which collects up to 40% of the dust sucked from the operating area of ​​the machine. The dust collector must be cleaned of accumulated dust at least once per shift.

The casing is equipped with a pipe for connection to the exhaust system. A bushing for fastening the protective screen is welded to the top of the casing.

The protective screen (Fig. 9) is made integral with the lamps. For ease of use, the screen can be rotated about the horizontal axis by 15°. The lamps are equipped with two 41.6 W lamps, providing good illumination.

For sharpening cutters and cleaning parts, the machine is equipped with a rotary table (Fig. 10) and a tool rest (Fig. 11). The turntable is a steel plate screwed to a cast iron bracket that can move along a curved guide. Thus, the table can occupy an inclined position relative to the end of the grinding wheel. The table guide is attached to a bracket, which, in turn, is attached to the bed. As a result of two movements of the table in the horizontal plane, wear of the circle along the end and side surface is compensated.

The tool rest is a steel part with two working surfaces: flat and curved. It is recommended to use a flat working surface when grinding parts that have a supporting plane. If you need to grind the curved surface of a part in the absence of a good reference plane or if you need to frequently readjust the angle of the tool rest, you need to use a curved working surface of the tool rest. The attachment of the hand rest to the bracket is made in such a way that it can move in a circle, vertically and rotate around an axis. It is necessary to ensure that the gap between the circle and the tool rest is no more than 3 mm.

Device

The sharpening and grinding equipment is installed on a steel vertical stand in a prepared room of a small repair shop or in utility rooms, and is powered by a single-phase AC mains voltage of 220 V.

The working tools for the machine are abrasive wheels made of CBN, technical corundum, and electrocorundum. Diamond bonded discs can be used for sharpening various cutting tools - knives, cutters, drills, chisels.

The kinematic diagram of the machine provides for the transmission of torque to both ends of the output shaft, to which two abrasive wheels are connected. They can have different grain sizes, so on a 3K634 type sharpening and grinding machine you can perform both rough and fine grinding. Range of technological capabilities of 3K634 equipment:

• Sharpening;
• Polishing;
• Ripping;
• Descaling (for small-sized castings);
• chamfering;
• Edge preparation;
• Finishing of carbide plates.

Mounting holes are used to install the machine. 3K634 includes units:

• Cast iron body with mounting bosses for fastening studs.
• Horizontally located electric motor with two stages of rotor rotation speed.
• Support shaft rotating in double ball bearings designed for significant axial loads.
• The top cover, inside of which a ventilation device with an impeller is mounted for continuous cooling of the drive.
• Built-in cabinet with elements of the electric drive system.
• Housing with control buttons.

The working tools on the 3K634 are abrasive wheels, which are installed on the output parts of the shaft and covered with protective covers. A protective screen made of durable acrylic glass is installed in the slot of each casing, behind which the worker can carry out the necessary grinding or turning operations without the risk of injury or damage. For sharpening, the sharpening and grinding equipment is equipped with a movable shutter, which can move left and right. The side walls of the casing are quick-removable, which is used when it is necessary to visually inspect the periphery of the abrasive disc and to replace it.

3K634 design features and capabilities

At the bottom of the casing there is the possibility of connecting a dust bag, which collects small metal waste, as well as turning chips. For intensive processing of workpieces, this equipment can be connected to the hood of the exhaust system of a workshop or workshop.

Proper sanitary and hygienic operating conditions of the grinding machine are ensured by the presence of a built-in lamp, the characteristics of which are designed for the use of lamps with a power of 40 W and a voltage of up to 36 V inclusive (it is not safe to buy used equipment without a lamp!). The lamp leg can be rotated at an angle of up to 15°, which provides good lighting conditions when grinding various parts.

Before purchasing a 3K634 machine for grinding work, it is worth remembering that the equipment must be equipped with a rotary-type tool table. The table is attached to the equipment body and allows movement along a curved path, which is convenient when sharpening twist drills. Thus, with a fixed axis of the grinding disk, the sharpening surface can vary within the required limits. Moving the table on 3K634 allows you to take into account the wear of the working edge of the circle.

Technical characteristics of model 3K634

The basic model has the following technical parameters:

• The largest outer diameter of the grinding wheels used is up to 400 mm.
• The maximum thickness of the circle is up to 50 mm.
• The height of the shaft at the centers is 900 mm.
• The range of sizes of sharpened turning tools is 6-100 mm.
• The range of sizes of sharpened drills is 6-60 mm.
• The shape of the working part of the drill is conical, with a cone angle of 70-140 mm.
• The highest technological grinding force is 1000 N.
• The spindle shaft speed is 1440 min-1.
• The radial rotation speed of the spindles is 30 m/s.
• The length of the free part of the spindle for tool installation is 40 mm.
• Electric motor power 4 kW.
• Overall dimensions in plan: 1000×630×1230 mm.
• The mass of the assembled machine, but without tooling, is 358 kg.

Complete set of machine TSH-2.10

The machine is delivered assembled, in special packaging (allows for its transportation and long-term storage)

The set and price of the machine includes:

• Grinding wheels 2 pcs: 300x40x76, 25A F46 K-L٭ 1700 (GOST P52588-2006), 300x40x76, 64C F46 K-L٭ 1700 (GOST P52588-2006);
• Work area protection: circle fencing 2 pcs., protective screens 2 pcs.;
• Work area lighting: local lighting lamp 1 pc;
• Electrical control: push-button, with zero protection.

Included with the machine:

• Operating manual 1 copy;
• Technical documentation for equipment;
• Equipment installation drawings;
• A certified copy of the GOST ISO 9001 equipment certificate;
• Certified copy of the security certificate
• Certified copy of the customs declaration

The TSh-2.10 machines are not equipped with a device for shutting off the electric motor when the protective screen is raised, only the TSh-2.20 modification. The warranty period for the equipment is 12 (twelve) months from the date of commissioning, but not more than 18 (eighteen) months from the date of sale.

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Passport 3B634 Grinding and grinding machine (Kyiv)

Name of publication: Passport and operating instructions Publication issue: Mukachevo Machine Tool Plant named after Kirov Year of publication: 1969 Number of books (folders): 1 Number of pages: 40 Cost: Negotiable Description: Complete set of documentation
Contents: Passport and operating instructions operation 1. Machine passport Passport data of the machine 2. Operating instructions Purpose and scope Transportation and unpacking - Scheme of transportation of a packaged machine - Scheme of intra-factory transportation of the machine Installation and installation - Scheme of installation of the machine - Foundation plan Preparing the machine for start-up. Safety rules Design - Head - Layout of ball bearing supports of the spindle - Fastening the wheel PV - Fastening the wheel PP - Rotary table - Tool rest - Spindle Electrical equipment - Circuit diagram - Wiring diagram Lubrication Adjustment of the machine - Scheme for measuring axial play of bearings - Scheme for connecting the machine to the ventilation unit ZIL-900 — Device for belt grinding — Device for sharpening drills — Device for polishing — Device for dressing grinding wheels Devices and tools supplied with the machine Test and acceptance certificate Testing of the machine and devices according to technical specifications Packing list

Description of the machine: Of course, as a rule, the passport of sharpening and grinding machines contains all the necessary data for the most adequate approach to operation, maintenance and compliance with the most preferred operating mode. As a rule, documents contain both a theoretical part, which will contain not only a description, but also drawings and diagrams in the most detailed and detailed presentation. For this reason, in order to comply with and satisfy certain technological features of the equipment, it is necessary to strictly follow the points submitted in the documents. After all, it is precisely thanks to the detailed presentation of the description that the documentation itself will represent the real context in the collected and accompanying data. Having a passport for a machine, you can really expand the possibilities of interacting with the equipment and engage in the most effective delivery of both its maintenance and repair, but here, of course, some experience must be present, then the work on the machine unit or its components will be carried out most professionally. But, in fact, for these actions you will need a technical document, which will allow you to implement the accompanying aspects.

We are also talking about the machine model 3B634, and the expanded name will be sharpening and grinding machine 3B634 passport. Again, the documents for the machine in our archive are present in the form of the most presentable version in good and certainly readable quality, which of course will facilitate the submission and moments of studying the document in production conditions. Of course, the presented document is endowed with all the necessary attributes that serve for the most professional study of the machine model and its effective use for production needs. In addition, the documentation was developed and implemented on paper by such a well-known manufacturer as the Mukachevo Machine Tool Plant named after Kirov. The documentation was produced in one thousand nine hundred and sixty-nine, however, the quality of the publication and its pages and sheets did not suffer at all over such a long period. Which fits very well into the concept of translating documents into electronic format and further use in production variations. According to the classics, in the publication you can find both a machine passport and an operating manual. The electrical equipment section goes well with the mechanical part, and the theoretical component with practice.

Again, the rough grinding machine has a passport, which is also in our technical archive, and is very similar in its data and contents to the original version. However, these publications are largely similar in their characteristics, which adds a certain commonality, and this is certainly important and works towards universality. In general, machine tools that were developed by a variety of equipment manufacturers in those years are often distinguished by their versatility, high degree of accuracy, resistance to wear, durability, productivity and other important aspects. After all, it is in the documents that there is a description of how to work with a particular machine, press, hammer and other models of equipment. But why is the description and manual for the machine important? So this is mainly precisely because by fulfilling the instructions and following the points indicated by the authors, it becomes possible to work with an industrial unit with higher flow and, of course, efficiency. As a result, this approach allows the service life of the machine to be extended over a longer period of time, which of course seems to be the biggest advantage in production realities.

What technological operations can be performed on the 3B634 machine

Due to its technical characteristics and design features, the 3B634 machine, which belongs to the equipment of the sharpening and grinding group, allows you to perform the following technological operations:

• sharpening of cutters up to 100 mm high, made of high-speed steels or equipped with carbide cutting inserts;
• sharpening drills with a diameter from 12 to 50 mm;
• sharpening of various tools used to perform plumbing work;
• cleaning operations - removing burrs, forming chamfers on the surface of a part and other types of metalwork;
• grinding of parts, for which an abrasive belt is used;
• polishing operations.

The high functionality of the 3B634 sharpening and grinding machine is also ensured by the fact that its design provides two working wheels at once.

Equipping the machine with special equipment

The 3K634 machine is equipped with additional equipment - a support table, which is used to sharpen drills with an allowable diameter from 6 to 60 mm. It is also possible to carry out operations for chamfering and polishing workpieces with a preliminary selection of the operating mode of the machine.

Basic parameters for processing workpieces:

• Processing of the workpiece using the optional 300 cm sanding belt.
• Sharpening of cutters with parameters from 6 to 100 mm.
• Use of abrasive wheels with indicators: D- 400 mm;

The 3K634 machine is used mainly for processing individual small batches of parts and when carrying out repair work.

3K634

3K634 is a sharpening and grinding machine, which replaced the 3B634 model. This unit is also a floor-mounted structure, which can be found in many large enterprises involved in the metalworking industry. Like its “predecessor”, this unit boasts the following functions:

• Sharpening of cutters made of hard alloys;
• Sharpening drills with a diameter from 6 to 60 millimeters;
• Maintenance of metalwork tools;
• Removing burrs and chamfers;
• Polishing and grinding of metal products.

Like its predecessor, the 3K634 sharpening and grinding machine is equipped with 2 grinding wheels of the PP 400x50x203 type. Most of the technical parameters of this coincide with the characteristics of 3B634. The main difference is the built-in 4-watt motor with improved performance characteristics. In addition, the 3K634 sharpening and grinding machine has slightly larger dimensions, which are 1000x680x1230 millimeters.

However, the increased dimensions did not affect the weight of the unit, which is only 358 kg, which is 67 kg less than the 3B634 model. In all other respects, this unit is almost completely identical to the previous series.

Results

Machine tools that were once produced by the Mukachevo plant are now very popular on the used market in all corners of the post-Soviet space. Easy to maintain, affordable and reliable in operation, they are in deserved demand among professionals. Today, if you are looking for how to equip your own workshop at minimal cost to your budget, consider purchasing one of the units described above. If you manage to find a car in excellent condition, you can count on it to serve you for many more years. Today, grinding machines 3K634 and 3B634 are able to seriously compete with many modern units, primarily in price. For this reason, experts recommend that you become more familiar with the specifics of this technique.

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Advantages

The 3K634 sharpening and grinding machine has the following advantages:

• simplicity of design;
• multifunctionality;
• versatility;
• quality of equipment and its components;
• ease of installation and operation;
• accuracy of work;
• safety;
• attractive price;
• reliability and strength;
• long service life.

Reviews from masters

Alexander, Novgorod: “The 3K634 sharpening and grinding machine is Soviet quality and reliability, with no plastic parts, since the body is made of cast iron. The equipment is convenient to use not only for industrial needs, but also in small workshops or workshops.”

Zakhar, Samara: “Accuracy of operation, ease of operation and reasonable price make the machine attractive to many specialists in the country. I have a small workshop, which is equipped with a number of necessary machines and tools, including 3K634, it makes work more productive and uninterrupted. A really good unit that has never let us down.”

Igor, Pskov: “The 3K634 machine is an excellent assistant, the unit is distinguished by high quality and excellent technical characteristics, as well as an affordable price. We have been using the equipment for several years and have had no complaints. Accurate operation, many useful functions. No plastic, only durable and reliable metal. It is worth emphasizing that the machine is produced by a plant with years of accumulated traditions.”

Design and equipment of the unit

The 3b634 sharpening machine has quite high functionality. The design includes:

• 2 working circles for performing rotational movements;
• electric motor with 2-speed modes, mounted in the inside of the head;
• a motor shaft with a protrusion on both sides of the cover, which acts as a spindle in the equipment.

The main features of this model include:

• the presence of a rotary table with a tool rest and 2 working surfaces (curvilinear, flat), for grinding parts;
• the ability to move the table horizontally to avoid rapid wear of the working circle;
• the right hand rest is equipped with a rotating mechanism and you can change the angle of inclination of the supporting surface if necessary;
• the presence of openings in the protective covers for better access to the workpiece and the surface of the working circle;
• moving the rotary table along curved guides to install the machine at an angle relative to the ends of the working circle.

Rotary table of grinding and grinding machine 3B634

Equipping the machine with transparent protective screens is necessary for safer and freer observation of the entire process and work performed.

The presence of powerful lamps with the ability to rotate 15 degrees horizontally, which is convenient when working with this sharpening and grinding equipment.

Unit design

The 3M634 grinding machine has a very simple design that does not require complex maintenance; it is enough to carry out a certain list of operations. All technical characteristics are included in the passport.

The equipment consists of the following components and parts:

• power electric motor 380 V;
• floor stand – 358 kg;
• start and stop control buttons;
• two abrasive wheels and their protection;
• protective casing for the housing;
• lighting elements.

Main mechanisms of the unit:

• rotor;
• starter.

A modern 3K634 machine has a main unit responsible for the rotation of roughening, grinding and grinding wheels - a head with a two-speed electric motor. The housing with two covers houses the rotor, fan, stator and motor shaft; it replaces the spindle.

The fan is protected by a special casing to ensure safe operation; the cover is hinged to facilitate repairs or access to the object.

The 3K634 machine is equipped with a spindle support, due to which the wheels rotate accurately. Additionally, this element is responsible for the strength and reliability of the equipment of the entire unit. The supports have fatty grooves on the inside and axial labyrinth elements on the outside.

Since the engine heats up during operation, the manufacturer provides a fan that effectively cools it with circulating air flows inside the head and frame.

Operating rules

Before using the machine, you must perform the following steps:

• Install the equipment on a level surface, without additional elevation.
• Provide the room with a 380 V electrical network; it is operational for 3K634.
• Take care of forced ventilation.
• When connecting, check the correct rotation.
• Check the functionality of the circuit breaker, which provides overload protection.

Before operating the machine, the operator must undergo appropriate training. Since the electrical part wears out during long-term operation, personnel must periodically check these elements of the machine.

When starting up new equipment for the first time, wipe it with a rag soaked in acetone or gasoline to remove the anti-corrosion coating. After checking the serviceability of all elements, specialists launch it.

It is imperative to balance the abrasive wheels, which, when rotating, should not create a feeling of beating.

Device control system

The operation of the grinding and grinding machine of this model is controlled using the following technical elements:

• a switch that turns on the electrical power of the machine;
• buttons for turning on (“START”) and switching off (“STOP”) equipment;
• a switch responsible for supplying power to the machine lamp;
• equipment speed switch.

Machine controls

Structural elements of the 3B634 machine

The design of the grinding and grinding machine of this model includes the following elements:

• supporting frame;
• working head;
• device for fixing circles PP type;
• device for fastening circles type PV;
• two protective covers – left and right;
• transparent protective screens;
• turntable;
• handyman

Machine components

Safety precautions

To safely use the 3K634 roughening, grinding and grinding machine, the following rules must be observed:

• Installation of equipment is carried out only on a level basis.
• The place where the machine works must be equipped with forced ventilation.
• The unit must be grounded.
• The machine must not be left unattended while the engine is running.
• You should leave the room only after the engine has completely stopped.
• Periodically, all equipment mechanisms are cleaned of abrasive dust.

Technical characteristics of the grinding grinding machine 3B634