Cnc internal grinding machine. Internal grinding machines

Grinding of through, blind holes of large diameter and complex shape is performed using special equipment. Internal grinding machines belong to a specialized class of devices used for processing wood, steel and polymer products.

Classification and design of machine tools

Model designed for machining large workpieces

Modern internal grinding machines are divided into several types. Structurally, they are similar to horizontal or vertical milling units. The difference lies in the way the parts are processed - the spindle is in the workpiece and removes excess material by rotating it.

Often the workpiece remains stationary. Rotation from the main drive is transferred to the spindle head shaft. Grinding tools of various types are installed on it. Their choice depends on the degree of processing and the material of manufacture of the part. For processing large products, special models of machines are used, designed for significant loads.

Depending on the design and functional features, there are the following types of internal grinding machines:

single-spindle. Designed only for grinding internal surfaces of cylindrical or tapered workpieces;
duplex. In addition to the main function, the second spindle performs the processing of the edges of the products. This allows you to increase productivity and, as a result, the quality of workmanship;
double-sided double-spindle. Belong to the category of special equipment. In them, the part is fixed to the structure, due to which the product is polished from both sides. In this way, complex shapes are processed.

In addition to these indicators, when choosing, it is necessary to take into account the specifics of the equipment configuration and the method of managing the production process. For maximum automation, it is recommended to choose CNC models. They allow you to increase the quality of processing. But for this, it is necessary to correctly draw up a program and carefully calculate the initial and required configuration of the part.

To control the operation, an internal CNC grinding machine is started in a semi-automatic mode. This means that after performing one operation, the equipment stops. At this time, you can measure the workpiece and, if necessary, make adjustments to the program.

List of main technical characteristics

Single-spindle machine diagram

Almost all models of internal grinding machines are designed for processing metal products. A similar operation with wooden blanks is done using other equipment. Therefore, the technical characteristics of the machines are designed for processing massive products with large dimensions.

First, the maximum and minimum dimensions of the workpieces are determined. This applies to the inner diameter of the holes as well as the outer dimensions. Then the maximum allowable mass of the part should be calculated. The next parameter is the required degree of processing - internal, end or double-sided. Based on these data, the optimal machine model is selected.

maximum grinding length of the workpiece. It may depend on its diameter. Usually manufacturers indicate this parameter at the maximum and minimum diameters;
processing of cones. It is imperative to know its permissible angle;
remoteness of the spindle axis from the surface of the working table;
the greatest distance from the end of the workpiece to the support cylinder of the spindle head;
power of electric motors. To a greater extent, this applies to the drive of the main movement of the spindle head. The power of the cooling and lubrication system of the machine elements is also taken into account;
dimensions and weight of equipment. In the first, it is necessary to know the dimensions of the support platform and the dimensions with possible additional equipment;
indicators of processing accuracy, roughness of the finished surface.

Based on these indicators, the optimal equipment option is selected. It should be borne in mind that for the processing of large products, special installations will be required for installation in the fixing unit. This is a must if the workpiece weight exceeds 20 kg.

To ensure the quality of processing, a magnetic separator and a filter conveyor can be installed in the structure. With their help, chips and metal dust are removed.

Features of the operation of internal grinding machines

Internal grinding unit with CNC

The operation of any metalworking equipment begins with the correct installation. First, the site is prepared for installation, taking into account the weight and dimensions of the machine. Additionally, the impact on the plate in the form of vibrations arising during operation is taken into account.

Then it is necessary to calculate the parameters of the connected mains. To do this, you need to know the maximum power consumption of the machine. Based on this, an electrical wiring with an appropriate section is selected. The RCD and the ground loop must be equipped.

When working on an internal grinding machine, you must adhere to the following rules:

preparation of equipment. After a long downtime, components and assemblies are inspected, the machine starts up in idle mode without installing the workpiece. It is imperative that the correct operation of the lubrication and chip removal system is checked;
staff. Before starting work, personnel must bypass the training course, which includes the study of the structure of the machine. Familiarization with the rules of operation and work safety;
procurement requirements. To perform them, it is necessary to study the operating instructions in detail.

Alternatively, you can consider installing a special tool for internal grinding work. An example of such a device is shown in the video:

stanokgid.ru

WHERE TO FIND A HIGH PRECISION INTERNAL METAL GRINDING MACHINE?

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Metal cutting equipment
OKAMOTO
Internal grinding machines with CNC

Equipment advantages

1Automatic setting of grinding data significantly saves data entry time
2Possibility of multi-sided face grinding in one setup
3Possibility of both straight and face grinding, as well as taper, contour grinding

By purchasing a Genos L300 E-M lathe, we managed to save about 30-40 working hours only on the production of one position. Thanks to this, time was freed up to fulfill new orders.

OOO NPO RUSTEKHNO

Since the start of operation of the Davi 4-roll plate-bending machine MCB 40150, a large amount of work has been done on rolling and sizing shells with sheet thickness of 60 and 90 mm in full compliance with the requirements of the drawings.

OJSC "Petrozavodskmash"

Throughout the life of the Okuma MCR BII 35E 35 * 50 gantry machining center, it has proven itself to be reliable, high-performance and accurate. The machine is ideal for the production of large-sized products. Thanks to this machine, we have been able to increase productivity.

CJSC "Nevsky Zavod"

LLC "Yargazarmatura"

REQUEST A COMMERCIAL OFFER

The purpose of the equipment is the processing of surfaces of the following types: cylindrical, conical, internal, external, surfaces of complex shapes, ends of products. Our catalog contains equipment of two types: NC and CNC. The IGM series is the only one in the world for all abrasive processes. Brand advantages:

Built-in programming system;
Convenient interface;
Ready-made grinding cycles included;
Special correction cycles and functions for interrupting the grinding cycle for dressing the wheel;
Automatic processing cycle: rough and clean grinding, automatic stop, wheel retraction;
Availability of modifications with two grinding spindles;
CNC and graphical method of programming methods and modes of grinding allow a specialist even with minimal experience and professional skills to adapt to new equipment in the shortest possible time.

To purchase a universal internal grinding machine, contact Pumori-Engineering Invest, where technologists will select a suitable model. Benefits of buying from us:

Leasing offers;
Operational service on the territory of Russia;
A comprehensive offer from a single source: equipment, engineering, service, software selection, original spare parts, training.

Don't have time to wait several months for the delivery of metalworking equipment from abroad? Do you want to quickly purchase a machine? Equipment from leading world manufacturers available from a warehouse in Russia - the best solution in a short time!

The sooner you choose a machine and send us an application, the faster you will put it into operation at your enterprise. Order now!

pumori-invest.ru

engineer will help - CNC internal grinding machine

The workpiece is fastened to internal grinding machines using a 3-jaw chuck. Grinding is the final or pre-final operation so the average tolerance is 0.008 mm. Measurement is currently performed with an internal gauge using a solis or standard calibers, the manufacture of which is very laborious, with a manufacturing time of 2º. Measuring in this way increases the number of technical losses in the manufacture of reference calibers due to an increase in the error in locating the part in the chuck. It can be eliminated or reduced entirely by equipping the machine with a Renishaw measuring head. Based on the experience of using the Renishaw probe on an existing Walter mini power machine, the measurement accuracy is up to 0.001 mm. As an option, internal grinding machines Studer CT450, S145, CT960 are equipped with measuring heads.

About 15% are parts with an internal taper and angular size accuracy up to 0.5 minutes.

Adjustment to obtain such dimensions takes more than 15 minutes if this angle is obtained by dressing the grinding wheel. Mechanical change of the table rotation angle does not shorten the set-up time. The electronic control of the table rotation allows to completely minimize this time. Internal grinding machines CNC S145, СТ960 have such an opportunity.

For a smooth transition of the inner surfaces of the cylinder to the cone (Fig. 1), which are now processed manually, as a result of which the quality of the surfaces processed before this operation deteriorates. Internal grinding machine CT960 has the ability to rotate the table during processing, which allows you to grind a smooth transition to parts.

Fig 1. Grinding the smooth transition of the inner surfaces of the cylinder to the cone.

Fig 2. Grinding a smooth transition of the inner and outer surfaces.

The spindle with external grinding wheel allows grinding external tapers 0-179º, such labor-intensive parts as (Fig. 2). The CT960 machine allows you to grind the back and front surfaces of the cutters in one setup.

The possibility of cylindrical grinding on this internal grinding machine allows you to exclude equipment changeovers. Currently, grinding operations with an outer angle of more than 60º are performed on an optical grinding machine by a dry method, which leads to an underestimation of the roughness specified in the drawing.

It should be noted that the internal CNC grinding machine Studer CT960 can be equipped with 4 spindles for both external and internal grinding.

For tool production, we suggest equipping 1 spindle for preliminary internal grinding and grinding of diameters over Ø 50 mm with a spindle with a rotational speed of up to 30,000 rpm, 2 spindle for final internal grinding and grinding of holes Ø 10-50 mm with a spindle with a rotational speed of up to 60,000 rpm, 3 spindle for final internal grinding and grinding of holes less than Ø 10 mm with rotation speed up to 90,000 rpm, 4 spindle - spindle for external grinding and grinding of ends. To increase the distance between the grinding wheels, use a turret (fig. 3).

engcrafts.com

Voumard (Vumard) external and internal grinding machines with CNC

The adjusted chucks of Voumard machines, as well as the mechanisms for grinding the profile of the disk cams, make it possible to machine parts of almost any shape, as well as allow multiple external and internal grinding operations in one set.

CNC external and internal grinding machines enjoy an excellent reputation around the world and are integrated into the production lines and plants of leading manufacturers in the aerospace, machine tool, bearing, automotive, instrumentation and other industries.

Voumard machines (Peter Wolters) make it possible to find the right solution for any technical task. Each Wumard machine combines high quality, precision and reliability with high efficiency and profitability.

The full range of Peter Wolters grinding equipment can be found on the corresponding page of our website:

Grinding equipment Peter Wolters

In addition to machine tools, the product range also includes grinding machine spindles, other ancillary equipment and spare parts.

VM 110

The Wumard VM 110 machine for internal and external cylindrical grinding is suitable both for individual and serial production of small and medium-sized workpieces.

Complete set of machine VM 110:

a choice of a spindle revolver with grinding spindles up to 4 pieces;
high-precision X and Z axes;
manual or numerical control of the B-axis for turning the headstock when grinding cones;
the headstock of the product, optionally, with a chuck or a mechanism for grinding the profile of disk cams;
a range of different tools for dressing grinding wheels.

Feeding options: manual loading, automatic loading, gantry loader, robot.

Machine control - Fanuc CNC with adapted Wumard control panel.

The machine can be easily adjusted for the required application.

The Fanuc Vumard VM 130 internal CNC grinding machine is equipped with a reliable automatic parts feeding mechanism with a double grab.

The reliable principle of separation of the X and Z axes is applied.

The VM 130 can machine parts with an outer diameter of up to 70 mm with a maximum part length of 70 mm. The smallest machinable inner diameter is 0.8 mm.

The Wumard control panel based on Fanuc CNC ensures the most comfortable work with the machine.

The universal external and internal grinding machine with CNC VM 300 is suitable for machining large parts.

Complete set of machine VM 300:

spindle revolver with grinding spindles up to 4 pieces;
high-precision X and Z axes;
increased working area for external cylindrical grinding thanks to the additional U-axis;
indexed workpiece spindle (C-axis)
manual or numerical control of the B axis;
headstock for heavy-duty work for parts weighing up to 500 kg;
a range of different tools for dressing grinding tools.

Machine control - Siemens CNC with adapted Wumard control panel.

VMX

Voumard offers compact grinding machine spindles.

Voumard VMX spindles are ideally suited for Voumard grinding machines (Peter Wolters), suitable for complex machining processes.

The spindles of Wumard grinding machines are completely interchangeable.

More detailed information can be obtained on the manufacturer's website www.voumard.ch or upon request from our specialists.

Internal grinding machine manufacturer 3M227VF2 - Saratov Machine-Tool Plant. 60th anniversary of the USSR, Shipyard founded in 1940.

Features of internal grinding

Internal grinding is one of the main methods of finishing holes, in which, depending on the grinding conditions and the characteristics of the grinding wheel, processing accuracy of 1-3 class and surface roughness V7-V9 can be achieved.

The advantage of the internal grinding process is the possibility of correcting the drift of the hole axis formed in previous operations, as well as ensuring the perpendicularity of the end surface to the hole axis, which is achieved when grinding the hole and the end from one setup.

Internal grinding can be used to grind cylindrical and tapered through and blind holes in parts made of unhardened and hardened steel, cast iron, non-ferrous metals and non-metallic materials.

Internal grinding is widely used in all branches of mechanical engineering. Internal grinding machines process the holes of gear wheels (smooth and spline), inner rings of ball bearings and roller bearings; roller tracks of the outer rings of roller bearings; holes for jig bushings, Morse taper reducing bushings, various cutting tools, such as cutters, shavers, reamers, etc.

For internal grinding, both longitudinal feed grinding and plunge-cut grinding are used. The first method is most widespread. Plunge grinding is used when grinding short holes, as well as holes bounded by collars or ledges.

For internal grinding, longitudinal and transverse feed methods are used. The following types of movements are distinguished:

rotation of the grinding wheel at a speed specified in m / s
rotation of the workpiece (circular feed) at a speed specified in m / min
longitudinal feed specified in fractions of the wheel height and cross feed in mm / double stroke or in mm / min

When grinding with longitudinal feed, the feed should not exceed 3/4 of the wheel height per revolution of the workpiece. In this case, the cross feed is intermittent for each single or double stroke, or continuous.

Plunge grinding is used when machining short holes, as well as internal cylindrical surfaces bounded by precise ends or ledges, for example, roller tracks of bearing rings. To ensure uniform wear, an additional oscillating movement is imparted to the wheel, if the configuration of the part allows it.

The peculiarities of internal grinding create a number of limitations for the application of this method. These include:

dependence of the diameter of the grinding wheel on the diameter of the hole to be ground
the need to insert the wheel into the hole, which requires a significant overhang of the spindle carrying the grinding wheel, especially when grinding long holes. This leads to a decrease in the rigidity of the system and limits the use of productive modes.

The dependence of the diameter of the grinding wheel on the diameter of the grinding hole, as well as the need for a significant overhang of the grinding spindle, especially when grinding long holes, caused by the introduction of the grinding wheel into the hole to be machined, lead to a decrease in the rigidity of the system and create a number of restrictions for the use of internal grinding.

Internal grinding machines

Internal grinding machines can be divided into two main groups.

Machines in which the workpiece and the grinding wheel rotate, and the longitudinal and transverse feeds are carried out by moving the grinding spindle or headstock. Depending on the method of basing the workpiece, these machines can be cartridge or centerless. In fig. 85 shows various home arrangements. In fig. 85, a, b, c shows cartridge methods for installing parts, respectively, based in a membrane cartridge (c), in a cartridge at the ends (b), in a sleeve along the outer diameter with a clamp at the ends (c). In fig. 85, d, e, centerless methods of mounting on shoes (d) and on rollers (e) are shown.

Machine tools on which the workpiece, usually large in size and weight, is fixed motionless on the machine table, and the grinding wheel performs planetary motion, rotating simultaneously around its axis and around the axis of the hole. Longitudinal and transverse feeds are carried out by moving the grinding wheel, respectively, in the direction of arrows 3 and 4. Such machines are called "planetary", can be both with vertical and horizontal spindle and have very limited application.

Depending on the nature of production, universal internal grinding machines, semiautomatic devices and automatic machines are used.

Universal machines with a cartridge clamp are used for machining short and long cylindrical and tapered holes. Tapered holes are ground by turning the headstock to the appropriate angle. These machines are common in ancillary shops in mass production plants as well as in main shops in mass production plants. Universal machines are usually equipped with a face grinder, which makes it possible to ensure high accuracy during machining in the perpendicularity of the face to the hole. Grinding heads on universal machines are mounted on skids and can be interchangeable.

Semiautomatic, widely used in mass and large-scale production, are equipped with measuring and control devices that automatically control the grinding process and stop processing when the specified size is reached.

Automatic machines- center and centerless ones are additionally equipped with loading devices that feed parts for processing to the grinding zone, as well as devices for automatic fastening and removal of the part and control of wheel dressing.

The main internal grinding machines produced by the domestic industry are machines of the ZK range. These machines are designed for processing holes with a diameter of 3 to 800 mm and are produced in accuracy classes P, B and A. All universal machines of the ZK range, with the exception of the ZK230V model, are equipped with face grinding devices.

On the basis of the main models, various modifications of machines are produced - with an extended table travel for processing, long parts.

3M227VF2 high precision internal grinding machine with CNC. Purpose and scope

Start of production of the internal grinding machine 3M227VF2 - 1985. The machine replaced the outdated model 3K227

Internal grinding machine semiautomatic device 3M227VF2 is designed for grinding cylindrical and conical (with apex angle up to 90 °) through and blind holes.

The machine is used in machine-building plants with small-scale and serial production, in tool and repair shops and factories.

The principle of operation and design features of the machine

Semiautomatic device 3M227vf2 is easy to set up, maintain and operate; equipped with a set of grinding spindles with a wide range of grinding wheel revolutions, providing machining of parts with the most advantageous modes.

The cross-feed mechanism, driven by a stepper motor, moves with high precision and stability over the entire speed range.

The internal grinding machine 3M227VF2 works with the 1P11 software device, which controls the operation cycle of the semiautomatic device when grinding the hole.

The semiautomatic device is equipped with a face grinding device that allows grinding the outer end of the product in one setup with grinding the hole.

The automatic mode of operation of a semiautomatic device with the setting directly by the grinder of the elements of the control cycle of ten-day switches of the program device does not require the mathematical support inherent in CNC machines and allows the worker to simultaneously service several semiautomatic devices.

Ordinary manual control of the semiautomatic device is also possible.

All attachments are connected to the machine and the electrical cabinet with ready-made electrical wiring with plug connectors.

Semi-automatic machines are completed with:

three- and four-jaw chucks
slotted faceplates for fixing workpieces
fitting and assembly tools
abrasive wheels and mandrels for them

For an additional fee, upon request, devices for dressing a circle along the radius, along the cone, along the end can be supplied; installation of a measuring device, steady rest, electric spindles and spare parts.

In comparison with universal internal grinding machines, when working on these semi-automatic machines, productivity is more than doubled.

The machines are designed for domestic and export deliveries.

The scope of machine tools is machine-building factories with small-scale and serial production, as well as tool and repair shops of these factories.

Accuracy class of machines B according to GOST 8-82E.

Developer - Saratov Machine-Tool Plant named after V.I. 60th anniversary of the USSR.

Accuracy characteristic of the internal grinding machine 3M227VF2

Accuracy class of semiautomatic devices according to GOST 25-80 ...... B
Accuracy of the ground holes and the end surface of the sample-product in accordance with GOST 25-80, microns:

constant diameter in longitudinal section ... 3
roundness ................................... 1,6
flatness of the end ......................... 4
hole surface roughness ......... Ra 0.32
end surface roughness ............. Ra 0.63

Accuracy of a ground batch of 30 bushings in automatic mode, microns:

size spread ............................. 40
roundness ................................... 3
constant diameter in longitudinal section ... 5

3M227VF2 Overall dimensions of the working space of the CNC machine

Overall dimensions of the working space of the machine 3m227vf2

3M227VF2 General view of the internal grinding machine

Photo of internal grinding machine 3m227vf2

3M227VF2 Kinematic diagram of the internal grinding machine

Kinematic diagram of the internal grinding machine 3m227vf2

1P11 Device of positional Numerical Program Control of the machine 3m227vf2

Device positional CNC 1P11 machine 3m227vf2

1P11 Positional Numerical Control Device, developed by Tomsk production association "Kontur" in 1983 to equip grinding machines.

The 1P11 CNC device is designed to generate signals to control the movement of the grinding machine headstock in accordance with the program and to issue signals that ensure the execution of plunge-cut grinding cycles, grinding with periodic feeds and dressing the grinding wheel.

Brief technical characteristics of CNC "1P11":

The device provides control of movement along one axis
The number of independent controlled coordinates - 1
Feed drive - stepper motor
The largest programmable movement - 99.999 mm
Discreteness of assignment of displacements along the axis - 0.001 mm
The program is entered on the input panel of the device using decade switches
The device provides displacement impulses to the stepper motor control unit
Element base - integrated circuits of the K155 series

Installation drawing of internal grinding machine 3m227vf2

Technical characteristics of the machine 3M227VF2

Parameter name	3K227V	3M227VF2
main parameters
Accuracy class according to GOST 8-82	V	V
The largest diameter of the installed product, mm	400	400
The largest diameter of the installed product in the casing, mm	250	250
Maximum length of the product to be installed, mm	125	200
The smallest and largest diameter of the grinded hole, mm	20..160	20..200
Maximum length of grinding with a grinding diameter of at least 100 mm, mm	125
Distance from the spindle axis of the headstock to the base of the bed, mm	1200	1210
Distance from the spindle axis of the headstock to the table mirror (center height), mm	275	285
Distance from the support end of the product spindle flange to the end of the grinding head bracket, mm	880	990
Distance from the end of the new circle of the face grinder to the support end of the spindle flange, mm	120..260	120..280
Machine table
Maximum length of table movement, mm	450	560
Manual movement of the table for one turn of the handwheel, mm	19
Table movement speed during grinding, m / min	1..7	1..7
Table movement speed when dressing a circle, m / min	0,1..2	0,1..2
Table movement speed with fast longitudinal approach and withdrawal, m / min	10	10
Grinding head
Internal grinding head spindle speed, 1 / min	7200, 9000, 12000, 18000, 22000	5000..28000
The largest diameter of the grinding wheel in accordance with GOST 2424-83, mm	pp20..80
The greatest height of the grinding wheel in accordance with GOST 2424-83, mm	20..50
Grinding wheel hole diameter according to GOST 2424-83, mm	6..20
Cross travel of the grinding head
Movement per one turn of the handwheel - coarse (adjustment), mm	2,5
Movement per revolution of the stepper motor, mm	-	0,1
Movement per one turn of the handwheel - fine, mm	0,25
Movement in one impulse (step) of a stepper motor, mm	-	0,416
Moving one division of the limb, mm	0,001
Displacement by one swing of the manual dispensing lever, mm	0,001
The greatest adjustment movement of the grinding headstock - backward (on the worker), mm	10	10
The greatest adjustment movement of the grinding head - forward (from the worker), mm	50	50
The values of the transverse feed of the grinding head on the side, mm / d.stroke	0,001; 0,002; 0,003; 0,004; 0,005; 0,006
Headstock (product headstock, product spindle)
The greatest angle of rotation of the headstock of the product, degrees	45	45
The greatest adjustment movement of the headstock of the product - backward (to the worker), deg	30	30
The greatest adjustment movement of the headstock - forward (from the worker), deg	120	180
Product rotation frequency (stepless regulation), rpm	60..1200	60..1200
Face grinder
Rotational speed of the face spindle, 1 / min	5600
Longitudinal displacement of the face grinding wheel, maximum adjustment, mm	160	160
Longitudinal displacement of the face grinding wheel, maximum working (thin), mm	4	4
Longitudinal movement of the face grinding wheel per one turn of the adjustment movement handwheel, mm	27	27
Longitudinal movement of the face grinding wheel per one turn of the handwheel of the working (fine) feed, mm	0,1	0,1
Longitudinal movement of the face grinding wheel per one division of the working (fine) feed dial, mm	0,0025	0,0025
Dimensions of face grinding wheel, mm	CHSH100 x 50 x 20	CHSH100 x 50 x 20
Drive and electrical equipment of the machine
Number of electric motors on the machine	7	7
Grinding head spindle motor, kW	4	4,4
Face grinder drive electric motor, kW	1,5
Electric motor of the drive of the product (headstock) of direct current, kW	1,2
Hydraulic pump electric motor, kW	3,0
Filter conveyor motor, kW	0,09
Cooling system pump electric motor, kW	0,15
Magnetic separator motor, kW	0,09
Total power of electric motors, kW	10,0	9,0
Drive with magnetic amplifier PMU5M4U4, kW	-
Drive with magnetic amplifier ET1E2-9UHP4, kW	1,0	1,0
Number of converting units	1	3
Overall dimensions and weight of the machine
Overall dimensions of the machine (length x width x height), mm	2885 x 1900 x 1750	2700 x 1320 x 1850
Machine weight with electrical equipment and cooling, kg	4400	4500

Bibliography:

Grinding machine design, 1989
Alperovich T.A., Konstantinov K.N., Shapiro A.Ya. Adjustment and operation of grinding machines, 1989
Dibner L.G., Tsofin E.E. Automatic and semi-automatic sharpening machines, 1978
Genis B.M., Doctor L.Sh., Tergan V.S. Grinding on cylindrical grinding machines, 1965
Kashchuk V.A., Vereshchagin A.B. Grinder's Handbook, 1988
Kulikov S.I. Honing, 1973
Lisovoy A.I. Device, adjustment and operation of metal-cutting machines, 1971
V.V. Loskutov Grinding metals, 1985
V.V. Loskutov Grinding machines, 1988
Lurie G.B. Grinding machines and their adjustment, 1972
Lurie G.B. The device of grinding machines, 1983
Menitsky I.D. Universal sharpening machines, 1968
V.I. Mutsianko Bratchikov A.Ya. Centerless grinding, 1986
Naerman M.S., Naerman Ya.M. A guide for the preparation of grinders. Textbook for vocational schools, 1989
Popov S.A. Grinding works, 1987
Tergan V.S. Grinding on cylindrical grinding machines, 1972
B.P. Shamov Types and designs of the main units of grinding machines, 1965

The machine has an arrangement with a moving grinding head in the transverse direction, longitudinal movement of the head of the product relative to the axis of the grinding wheel and rotation of the spindle of the head of the product. The workpiece to be processed is installed in the chuck of the workpiece headstock. A support steady rest can be installed on the machine table. The part is installed manually.
The movement of all working bodies is carried out by means of ball screws.
The base of the machine is the bed, on which the main units and mechanisms are installed. A longitudinal table is installed on the rolling guides of the bed. On the guides of the transverse traverse - the table is transverse, and also fixed:
- mechanisms of longitudinal and transverse movements;
- a mechanism for limiting longitudinal displacements;
- mechanism of reference and limitation of lateral displacements
- fencing of the working area.
The transverse table provides transverse movement of the grinding spindle headstock installed on it. The movement is carried out on steel hardened linear rolling guides by means of a backlash-free high-precision ball screw.
The dressing of the periphery of the grinding wheel is carried out with a diamond in the holder, the dressing device is fixed on the longitudinal table.
Surface treatment and dressing of the grinding wheel is carried out automatically according to the control program, the installation and removal of the part is carried out manually. The machine automatically compensates for the removal of the profile of the grinding wheel during dressing.
The longitudinal table moves on the rolling guides, which carries out an oscillatory oscillatory movement with the possibility of a stepless and precise approach. An upper rotary table is installed on the longitudinal table. On the working surface of the longitudinal table there is a headstock and a support rest. The upper table can be rotated horizontally by an angle of ± 2 °. The headstock of the product can be turned through an angle of -7 °… + 8 °.
A hydraulic three-jaw self-centering chuck with replaceable jaws can be used to install parts.
The lubrication unit and coolant tank are installed behind the machine.
The working area of grinding is fenced with cabinet-type protection, the front wall of the protection has a movable opening door with plexiglass.
In front, on the right of the machine, there is a CNC control panel. The Siemens Sinumerik 802Dsl CNC system must provide the following machine capabilities:
- processing of the part due to the rotation of the workpiece and the movement of the grinding head;
- maintaining a given value of cutting speed and a given rotational speed of the workpiece.
For the convenience of the operator, a universal technological program is installed on the machine. In the dialog mode, using special "masks", the operator sets:
- dimensions of the treated surface;
- removable allowance;
- finishing allowance;
- the values of roughing and finishing feeds and speeds;
- the number of nursing;
- parameters and number of edits of the grinding wheel during processing.

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