Grinding and polishing (B24)

B24            Grinding; polishing(17608)

Braking device of manual machine // 2628270
FIELD: machine engineering.SUBSTANCE: braking device of the manual machine comprises at least one mechanical brake assembly, with at least one rotatably mounted brake element and at least one control unit and with a control element. The control element is designed to drive the response brake element perpendicular to the axis of rotation of the brake element.EFFECT: reliability of switching on and/or switching off of the manual machine is increased.10 cl, 5 dwg

ethod of multistage product grinding and also vacuum table, store, removable device and unit for method implementation // 2628190
FIELD: machine engineering.SUBSTANCE: product is delivered to the processing area where it is measured and/or installed. The robot contains a grinding head with which it grasps the first grinding means from the store and begins the first grinding process. At the end of the first grinding process, the robot again releases the first grinding means and captures the second grinding means. The second grinding process begins, at the end of which the robot releases the second grinding means. Upon the completion of the last grinding process, the product is removed from the processing area.EFFECT: automatic processing of products of various shapes is provided with the replacement of grinding means.12 cl, 12 dwg
Abrasive powder for processing surfaces and its application // 2627413
FIELD: chemistry.SUBSTANCE: abrasive powder consists of converter slag of metallurgical manufacture and contains 96-99.9 wt % of a compound mixture: portlandite (CaO⋅H2O), magnetite (Fe3O4), brucite (Mg (OH)2), calcite (CaCO3), spermite (2Ca2SiO4⋅CaCO3), calcium aluminate (5Ca⋅O3Al2O3), spinel (MgAl2O4), periclase (MgO), calcium silicate (Ca2SiO4) and 0.1-4 wt % of elements such as S and/or Mn, and/or Cr, and/or Zn, and/or Ti, and/or V. At least, 95 wt % of the powder particles are isometric and the remaining particles have a non-isometric elongated shape.EFFECT: increasing the efficiency and quality of surface treatment by increasing the strength of abrasive powder.2 cl, 3 tbl
Device for automated cover fastening and centrifugal-planetary plant container sealing // 2627083
FIELD: machine engineering.SUBSTANCE: device contains the end sealing, fixed in the centering ring bore of the container, the body with the diaphragm pneumatic motor, the rod of which is mounted coaxially to the container, and the pivoted clamps in the form of levers. Some ends of the clamps are connected to the rod of the pneumatic engine, while others are designed to interact with the container rim surface. In the rodless cavity of the pneumatic engine, formed in the end cover, the spring is provided to seal the cover connection to the container by means of mentioned end sealing.EFFECT: processing capacity is increased due to the automated process of loading and unloading and the container sealing.2 dwg, 1 ex

ethod of sealing anode paints with collision of a sandwashing machine // 2627072
FIELD: technological processes.SUBSTANCE: direct two jets of abrasive material towards the part covered by the mentioned paint. The jets are oriented with convergence at the focusing point in front of the part.EFFECT: processing speed is increased.5 cl, 4 dwg
Procedure for finishing treatment of parts // 2626706
FIELD: machine engineering.SUBSTANCE: first the parts are subjected to semi-finished processing by the method of microscopic impact, which is carried out with the help of a non-refillable instrument made of optical glass with a part pressure on the instrument of 0.01-0.03 kg/cm2 and the average speed of their relative displacement of 0.06-0.08 m/s. At the same time, an abrasive paste or micropowder with grain size M3-M7 is used with the addition of kerosene in an amount of 0.15-0.25 mg/cm2. Then, the tool is processed with the instrument in the form of a solid substrate coated with newsprint with a deposited diamond paste. Newsprint is taken with a typographic text, it is kept at an air humidity of 60-80%, the coating is carried out in two coats.EFFECT: quality and productivity of processing are increased, risks are excluded.7 dwg

ethod and device for protection from corrosion cracking of welded steel structure // 2626705
FIELD: metallurgy.SUBSTANCE: method involves patching the near-surface cracks by step-by-step impact with pulse current in the zone of tensile residual welding stresses and compressing said zone with dynamic impacts. The device contains a movable portal, provided with movable clamps, compressing springs, two electromagnetic clamps, a capacitor point contact welding machine, two electrodes for one-sided capacitor contact welding, a multi-head caulking stiffener with an air cylinder and a bundle of needle wires fixed to the portal casing, with two springs, located at the top and bottom of the portal to dampen its vibration from the side of the reinforcing pneumatic hammer, and a control unit. In this case, each electrode is fixed in the electrode holder with the ability to move by means of the pneumatic cylinder and connected to the capacitor point contact welding machine. The pneumatic thrust and the pneumatic hammer of the multi-head caulking stiffener are made with the possibility of connecting to a source of compressed air.EFFECT: invention protects welded metal from corrosion cracking.2 cl, 1 tbl, 8 ex

Device for surface plastic deformation // 2626522
FIELD: machine engineering.SUBSTANCE: device contains a deforming element with a rounding working surface, a sticking of the deforming element, a geared motor, a mechanism for converting the rotary motion into a reciprocating motion and an instrumental unit for adjusting the inclination angle of the deforming tool with respect to the vertical.EFFECT: increased productivity of surface plastic deformation.2 dwg

Electromagnetic shotblaster // 2626254
FIELD: machine engineering.SUBSTANCE: shotblaster contains the base, the axis, the drive belts, the non-magnetic body with drive belt grooves, rotatably disposed on the axis, and the electric motor, configured to transfer the rotation to the non-magnetic housing by means of the drive belts. The non-magnetic replaceable rim is attached to the non-magnetic body, having the transverse ribs and two longitudinal ribs and made with ability to rotate at 3000 rpm. Inside the non-magnetic body there is the sector electromagnet, rigidly mounted on the axis and made with ability to rotate and fasten at any angle relative to the base.EFFECT: reduction of the shot dispersion and provision of easy and quick adjustment of its flow direction.3 cl, 4 dwg

ethod of magnetic-abrasive polishing of work areas of taper tap // 2626124
FIELD: machine engineering.SUBSTANCE: stepwise processing of the intake, calibrating and leading work areas of a taper tap with its forward and reverse rotation in the magnetic-abrasive mass. At the first stage, all working sections of the taper tap are processed for a time period necessary to obtain the lowest values of microgeometric parameters in one of the three work areas. At the second stage, one of the two remaining work areas is refined to obtain the required values or the limits of the microgeometric parameters of the area. And the processing time is established in terms of the lowest values of microgeometric parameters of one of the two work areas of the taper tap. At the third stage, the remaining work area is refined to the required values or limits of the microgeometric parameters for the time period necessary for the final formation of the microgeometry of this area.EFFECT: sudden drops of the values of microgeometric parameters in the transition zones are excluded, the durability of taper taps is increased and the quality and accuracy of the produced thread is improved.6 dwg, 1 ex

Braking device of manual machine // 2626109
FIELD: machine engineering.SUBSTANCE: manual machine comprises at least one braking device with at least one rotatably mounted braking element, which rotates about the axis, and at least one control unit with at least one movably mounted control element. Wherein the braking device comprises at least one node with a motion converting element for converting the movement of the motion converting element in the motion control of the response of the braking element transversely to the rotation axis of the braking element.EFFECT: simplified design of the manual machine.10 cl, 8 dwg

ethod of producing polycrystalline diamond materials // 2625693
FIELD: chemistry.SUBSTANCE: method comprises formaton of metal coating on the surface of diamond powder particles and formation of polycrystalline diamond material from the diamond powder by influence of pressure and temperature, wherein synthetic diamond powder is used as diamond powder, containing intracrystalline metallic inclusions, which is subjected to heat treatment in a protective atmosphere at a temperature of metal inclusion liquefaction and extraction of the melt particles on the surface in the form of droplets, followed by cooling at ambient temperature and forming diamond powder particles of the discontinuous coating on the surface. The heat treatment is carried out at a temperature of 1200-1600°C for 15-30 minutes.EFFECT: increased wear resistance due to the large volume content of diamond particles and the possibility of their tighter compaction, heat resistance due to very low content of metallic inclusions in the material and strength.2 cl, 1 dwg, 1 tbl

ethod of strength increase of details with coating // 2625619
FIELD: machine engineering.SUBSTANCE: part is deformed with a deforming element and the subsequent coating hardening is performed by ultrasonic treatment with a frequency of ultrasonic vibrations of 18-22 kHz by a reinforcing element. The distance between deforming and reinforcing elements is 10-30 mm, and a linear deformation spot displacement speed of the deforming and reinforcing elements is 50-100⋅10-3 m/s with a longitudinal feed of 0.08-0.12 mm/vol.EFFECT: adhesive strength between the coating and the substrate is increased.2 cl, 2 dwg, 2 tbl
ethod of strength increase of details with coating // 2625508
FIELD: machine engineering.SUBSTANCE: part is deformed with a deforming element while passing through the zone of contact between the deforming element and the surface being treated of a pulsed electric current of 2-5 kA, a voltage of 2-3 V, with a pulse duration of 0.08-0.2 s and a pulse frequency of 0.16-0.4 Hz. Running is carried out with a force of 50-3000 N with a deformation spot displacement speed of 50-100⋅10-3 m/s with a longitudinal feed of 0.08-0.12 mm/rev.EFFECT: adhesive strength between the coating and the substrate is increased.1 dwg, 2 tbl

ethod for forming arbitrary form holes in cylindrical and conical parts with hydroabasive jet // 2625381
FIELD: technological processes.SUBSTANCE: spherical technological bodies are laid inside the part, and the open sides of the part are closed with plugs with perforated holes measuring 0.25-0.5 times the diameter of the technological body. The part is installed on the lodgement. The part together with the lodgment is immersed in a container with water. A jet of water is fed.EFFECT: holes of arbitrary shape are formed without destroying the inner surface of the part.3 ex, 1 dwg
Device of burnishing deep funnels // 2625364
FIELD: mining.SUBSTANCE: spring and piston type mechanism for the mandrel-punch feeding is set in the rear support creating an inlet sealing zone. The sealing device located in the front support is made in the form of a muffler with regulating elements in the form of spring and spiral pairs and contacts with working surface of a mandrel-punch getting out of the processed funnel.EFFECT: constant pressure setting is maintained when mandrel-punch gets in and out.2 cl, 5 dwg

ethod of manufacturing the profile grinding circles from superhard materials // 2624879
FIELD: machine engineering.SUBSTANCE: working surface of the grinding wheel is profiled using a rolling roller by rolling a pasty mixture containing a powder of a metal binder, a grain of a superhard material and a plasticiser onto the workpiece of the grinding wheel. After that, the billet is dried and sintered.EFFECT: durability of profile grinding wheels from superhard materials is increased, the labour intensity of their production is reduced.5 cl, 2 dwg, 1 tbl

Braking system of technological machine // 2623930
FIELD: transportation.SUBSTANCE: braking device portable processing machine, preferably a manual machine, comprises a mechanical brake assembly (14a; 14b; 14c) having a braking element (16a, 18a, 20a; 16b, 18b; 16c, 18c, 20c), slidably mounted to its transfers braking position and/or disinhibited position due to inertia and/or by the driving torque actuator, and the follower unit (22a; 22b; 22c) having formed as a gear output element (24a; 24b; 24c) and driven by a drive unit (68a) carrying the technological machine to ensure the transmission of generated driving unit (68a) forces and/or torques to the working tool (60a) processing machines. The brake assembly (14a; 14b; 14c) has a control element (26a, 28a, 30a; 26b, 28b, 30b; 26c, 28c, 30c) for moving the brake operable brake member (16a, 18a, 20a; 16b, 18b; 16c, 18c, 20c) substantially perpendicular to the axis (32a; 32b, 32c) of the driven rotation member (24a; 24b; 24c).EFFECT: provision of braking or brake a moving machine element of a constructive process for a certain period of time.10 cl, 11 dwg

Device for honing the hole of the detail completed with radial holes // 2622550
FIELD: machine engineering.SUBSTANCE: device contains a housing installed in the housing in bearings on two semi-axles of the cross, in which the guide bushing is fixed in orthogonally located bearings on the two semi-axles. There is a replaceable insert for the installation of the workpiece, made with radial holes and located in the guide bush with the formation of a cavity between the insert and the workpiece. Mentioned axle shafts on which the guide bushing is fixed are made in the form of hollow tubes extending out of the housing for pressurizing the lubricating-cooling process into the cutting zone through the radial holes and the cavity of the replaceable liner and the radial holes of the workpiece.EFFECT: productivity, accuracy and quality of processing are increased, the service life of the tool is extended.2 dwg

Spindle unit // 2621524
FIELD: machine engineering.SUBSTANCE: invention can be used, for example, for high-speed grinding of small holes by grinding wheels with a super-hard abrasive monolayer applied. The spindle unit comprises a prefabricated housing, a spindle with hydrostatic supports having an annular chamber for injecting a working fluid, a spindle rotation electric motor disposed between the hydrostatic supports, and a spindle own longitudinal wave generator having a piezo plastic package which is mounted rearwardly on the rear flange of the assembly housing coaxially to the spindle, and the front end of the piezoelectric plate forms a slot gap with the rear end of the spindle, which opens into the annular chamber for injecting the working fluid. On the supporting surfaces of the spindle, there are spiral microcavities connected to annular chambers for injecting working fluid.EFFECT: use of the invention makes it possible to increase the loading characteristics of the spindle and the accuracy of spindle centering.1 dwg
ethod of accuracy and productivity increase of round grinding // 2621495
FIELD: technological processes.SUBSTANCE: method includes continuous monitoring of the abrasive wheel cutting ability when grinding on a cylindrical grinding machine using an acoustic emission (AE) sensor and automatic correction of the abrasive wheel with a change in its cutting ability. During the grinding process, the spectral distribution of the number of AE emissions and their peak amplitudes in the frequency spectrum range from 60 to 300 kHz is continuously monitored. Changes in these parameters reflect changes in the structure of macro- and microgeometric deviations of the abrasive wheel interacting surfaces and the details and processes of plastic deformation that develop in the course of reducing the cutting ability of the abrasive wheel. In this case, the automatic correction of the abrasive wheel is carried out by means of its electroerosive dressing by changing the voltage of the electric pulse generator power source supplied to the abrasive wheel in the range of 25…40 V and pulse frequencies in the range of 1…22 kHz.EFFECT: increased accuracy and productivity of the grinding process.3 dwg

Head for abrasive blasting of surfaces // 2621493
FIELD: machine engineering.SUBSTANCE: head for abrasive blasting of surfaces contains a head moving mechanism, an abrasive feed device, an abrasive hopper and a nozzle connected to a source of compressed air and connected by a pipeline to the hopper. The mechanism for moving the head contains two worms with crossed mutually perpendicular axes and a worm wheel. The worm wheel is rigidly fixed on the axis of the first worm placed on the platform and interacting with the gear sector. The gear sector is rigidly connected to the nozzle. The worm wheel is interfaced with a second worm, the axis of which is aligned with the vertical axis of rotation of the platform. The second worm is made with a through axial hole into which the pipeline is passed.EFFECT: simplified construction.7 cl, 3 dwg

Abrasive particles, method of obtaining abrasive particles and abrasive articles // 2621085
FIELD: technological processes.SUBSTANCE: moulded ceramic abrasive particle comprises the first surface, the second surface and a peripheral surface. The first surface has a perimeter consisting of the first and the second edges. The first perimeter area comprises the second edge and extends inwards, ending at the two vertices forming the first and the second internal acute angles. Wherein the perimeter comprises four vertices forming internal acute angles. The second surface is positioned opposite the first and does not come in contact with it. The peripheral surface is positioned between the first and the second surfaces, joining them. The peripheral surface comprises the first wall contacting with the perimeter at the first edge and the second wall contacting with the perimeter at the second edge.EFFECT: higher efficiency of abrasive processing.16 cl, 23 dwg, 2 tbl, 8 ex
Abrasive material with coating // 2620846
FIELD: technological processes.SUBSTANCE: abrasive articles comprise the forming layer, the layer of abrasive particles and the size layer, which are applied to the base in accordance with the coating patterns characterized by a pattern with separate areas or elements arranged with the surface density in the range from about 30 to about 300 elements per square centimeter. The average diameter of the element is equal from about 0.1 to about 1.5 millimeter. Said coating pattern provides the interaction of all three components with one another, as well as the presence of uncoated substrate areas.EFFECT: enhanced efficiency of cutting and finishing, and resistance of the abrasive article to bending in humid media.10 cl, 6 dwg, 2 tbl, 17 ex
Polishing composition // 2620836
FIELD: chemistry.SUBSTANCE: polishing composition comprises at least water and silicon dioxide. The specific surface area of silicon dioxide is 30 m2/g or more. Silicon dioxide is used, having a particle size of 10 to 50 nm, and silicon dioxide having a particle size of 60 to 300 nm, each of which is contained in the polishing composition in an amount of 2% by weight or more. The value obtained by dividing the larger average size of said silicon dioxide particles by the smaller average size of said silicon dioxide particles is 2 or more.EFFECT: high-speed polishing of substrates from solid and brittle material is provided, with preserving the speed over a long period of time while using the polishing composition repeatedly.7 cl, 2 tbl

Device for fixing the grinding tool // 2620655
FIELD: machine engineering.SUBSTANCE: device contains a housing designed to be mounted on the spindle shaft of the machine. A removable adapter support element and a pressure flange having a compensating projection on the outer surface and a central screw are mounted on the housing. The body and the clamping flange are made with insulating transition sleeves.EFFECT: technological capabilities of the device are expanded and the costs of manufacturing grinding ring workers are reduced.3 cl, 4 dwg

ethod of mandrelling with compression // 2620227
FIELD: machine building.SUBSTANCE: method is implemented by means of single mandrels with increasing diameter successive pushing through hollow cylinder hole. At that, in successive following groups of two mandrels average tensions on each of them are accepted as identical, and processing with said mandrels is performed at hollow cylinder locating on different ends.EFFECT: enabling higher accuracy of hollow cylinders hole and outer surface.1 cl, 1 tbl, 4 dwg

Control device for manual machine and manual machine containing this element // 2620225
FIELD: engines and pumps.SUBSTANCE: invention relates to hand tools. The control device for a manual machine, especially an angle grinder, provided with a motor (70a), includes: a rod-shaped body portion (12a; 12b; 12c; 12d; 12e; 12f), which serves as the main handle during manual machine operation, a control located on the body portion (12a; 12b; 12c; 12d; 12e; 12f) and extended along the direction (16a; 16b; 16d; 16f) of the body portion (12a; 12b; 12c; 12d; 12e; 12f) basic length and in parallel to this direction, and a support (18a; 18b; 18c; 18d; 18e; 18f), providing the installation of the control with a possibility of rotation of at least one of its pressed surfaces (20a; 20b; 20c; 20d; 20e; 20f) around at least one axis (22a; 22b; 22c; 22d; 22f), running parallel to this direction. The rod-shaped body portion (12a; 12b; 12c; 12d; 12e; 12f) contains the manual machine motor (70a), and the control is arranged to provide operator influence during manual machine operation on electric power supply to the manual machine motor (70a).EFFECT: invention provides convenient and safe control of the manual machine.10 cl, 14 dwg
ethod of impregnating abrasive tools // 2620209
FIELD: technological processes.SUBSTANCE: abrasive tool is preliminarily electrolytically treated in a 10% solution of ferrous sulfate for 2-3 minutes at room temperature and the current strength determined depending on the characteristics of the tool abrasive. After that, the tool impregnation is performed with an aqueous solution containing 20-25 grams of diiodide chromium per liter of water at room temperature for 10-15 minutes in a container with its periodic shaking to fix diiodide chromium in the pore space of the abrasive tool and its convective drying.EFFECT: effectiveness of impregnating abrasive tools with chromium diiodide increases, the specific intensity of metal removal from the processed parts increases.2 tbl
ass for manufacturing abrasive tool // 2620208
FIELD: chemistry.SUBSTANCE: weight includes abrasive, epoxy resin, polyethylenepolyamine systems, organic modifier, high strength cast iron ferrite particle size Dfi=(1.2-1.5)dA, where dA -dispersion of abrasive, and crystalline iodine, moreover, it additionally contains a powder of grey cast iron particle size Dgi=(0.8-1.0)dA, the following component ratio, wt %: the abrasive 40-50, polyethylenepolyamine systems 3.5-5.0, organic modifier 2.5-3.5, high-strength ferrite iron 15-20 crystalline iodine, 0.5-1.0, grey cast iron 5-10, epoxy is the rest.EFFECT: increase in the period of resistance abrasive tool between his edits, reducing roughness treated surfaces and thickness of the surface layer with modified physical-mechanical properties, reducing relative in square surface details.2 tbl
achine for processing edges of plane products // 2619651
FIELD: machine engineering.SUBSTANCE: machine comprises a frame with a work table having guides, movable by the actuator to these guide carriage, the rack of which has the device for orienting the machining head with a tool with the ability to rotate relative to edges of the article, the mechanism of the workpiece and a control panel. In addition, a system for determining the location of the edge of the workpiece and the height of the locking mechanism of the machining head. The drive of the clamping mechanism of the workpiece is designed as a pneumatic system.EFFECT: enhanced ease of operation of the machine when configuring the tool relative to the edge of the product due to automation and mechanization of the machine.4 cl, 9 dwg

Device for surface strengthening of cylindrical parts // 2619549
FIELD: machine engineering.SUBSTANCE: device contains an electric motor, a V-belt drive and a deforming roller that are mounted on the support of the lathe and are mounted on the frame with the ability to rotate about an axis perpendicular to the plane of mentioned support. The deforming roller consists of four zones: an entrance zone with a cone angle α= 6-8°, A conical calibrated zone of width b=(0.1-0.2)D with a cone angle where h is the height of the conical calibrated zone, d and D are the diameters of the bases of the conical calibrated zone, the cone α1=1-3° and exit zone with an angle α2=30-40°.EFFECT: improved quality of machined surface.2 dwg

ethod of forming correction of grinding circular by diamond rollers on grinding machines with automatic treatment cycle // 2619544
FIELD: machine engineering.SUBSTANCE: correcting is performed in two stages as to generate first roughing, then finishing profile of the grinding wheel with a certain depth changes. The first stage is carried out at a peripheral speed of the grinding wheel, the value of which is equal to or greater than the peripheral speed of the diamond roller. In the second stage, the magnitude of changes and the depth of feed of the diamond roller are reduced, meanwhile the amplitude and oscillation frequency of the grinding wheel to the process of editing and providing its cutting ability are controlled, depending on which the cycle time changes are set in mentioned step. The maximum value of the amplitude and frequency of oscillation corresponds to the time changes in the first phase, and the minimum value - the time changes in the second stage.EFFECT: increased productivity and processing quality of manufactured parts and reduced consumption of grinding wheels.3 cl, 1 dwg
Pulse electron-beam metal product surface polishing method // 2619543
FIELD: metallurgy.SUBSTANCE: product surface with initial roughness is affected by a pulsed beam in vacuum at a pressure of (2-5)⋅10-2 Pa, electron energy of 15-25 keV, pulse durations of 150-200 mcs and energy density in pulse of 40-60 J/cm 2.EFFECT: decreased porosity and roughness of the surface layer of bulk metal products.2 dwg
ethod for impregnation of abrasive wheel cutting surface // 2619416
FIELD: construction.SUBSTANCE: on the abrasive wheel cutting surface, grooves are made with the depth of 0.1-0.2 mm with the alternating pitch of the trapezoidal or the rectangular profile. The impregnation is carried out by means of a solid impregnator applied to the flexible substrate with the adhesive layer, which is applied to the cutting surface and is pressed by the roller during the wheel rotation. Then the wheel surface with the impregnator is heated by the directed heat flow, and rolling by the roller is continued until the impregnator is softened. After that, during the wheel rotation, the impregnator is brought to the dry condition.EFFECT: reducing the impregnator consumption and increasing the impregnation uniformity of the abrasive wheel cutting part while using simple equipment.2 cl

ethod of scratch and fractures removing from vehicle paint coating // 2619374
FIELD: technological processes.SUBSTANCE: sweep blasting of the scratch or fracture inner surfaces is carried out. The cavity of a scratch or fracture in the varnish layer is widened, after which a layer of filler, a layer of paint and a layer of varnish are applied layer by layer.EFFECT: treatment area is reduced when the vehicle's paint and varnish are restored while maintaining its performance characteristics.2 cl, 4 dwg

ethod for restoring the original shape of turbocharger blade, which contains at least one deformed by drobestructural processing zone // 2618966
FIELD: machine engineering.SUBSTANCE: method of recovering the original shape of the blade of a turbomachine comprising at least one deformed zone (Z), by peening, according to which the profile of mentioned blade is defined, comparing mentioned profile with a reference profile, separate the blade surface at a plurality of deformed zones (Z, Zj) of elementary surfaces, compare deformed zone (Zj) with the base deformation data comprising a plurality of deformed zones (Zj), comparable respectively to a plurality of characteristics (Pi) of peening device, determine the parameter (Pj) of peening device that is associated with mentioned deformed zone (Zj), and produce blasting ultrasonic treatment of each deformed zone (Z, Zj) of the blade by means of a shot peening device depending on mentioned specific parameter (Pj) of restoring the shape of mentioned zone (Z), wherein the blade comprises two sides (F1, F2) opposite to each other. One of the deformed zones (Z, Zj) is located on one of the two sides, wherein the surface is located on the other opposite side, and is free from deformation during ultrasonic peening treatment of the first side (F1).EFFECT: invention allows cold reshaping of the blade without the blade to adjust the condition of high temperatures, which limits the risk of thermal damage and creates the possibility of increasing the length of the blade operation.12 cl, 6 dwg
ethod for abrasive tools impregnation // 2618682
FIELD: chemistry.SUBSTANCE: method involves tool impregnation in a vessel with an aqueous solution containing 20-25 g of chromium diiodide per liter of water, and abrasive tool convective drying as it rotates at a speed of 0.3-0.5 s-1 for 1.5-2 hours at 40-50°C, wherein abrasive tool impregnation is carried out in a boiling aqueous solution of chromium diiodide, and the impregnation time tn shall be equal min, where ν - abrasive tool volume in cm3, a - impregnated abrasive tool porosity, a0 - regulatory abrasive tool porosity.EFFECT: reduced impregnation time and increased fixing strength of chromium diiodide in the pore space of the abrasive tool.3 tbl, 1 ex

Device for burnishing panel ribs // 2618680
FIELD: transportation.SUBSTANCE: device includes a moving mechanism and a flow forming head with rollers and loading mechanism. The moving mechanism is made in the form of an electric motor connected to the worm of the worm gear, the wheels of which are fixed to the shaft transmitting the rotation through the gear to the said rollers. The loading mechanism is made as a rack gear with toothed wheels fixed to the hollow shafts, and the two-way rack connected to the hydraulic cylinder. The moving mechanism shafts are located in the hollow shafts of the loading mechanism, which are mounted eccentrically to the rollers.EFFECT: ability to process the rib surface along the entire length.2 dwg
Parts barreling device // 2618301
FIELD: machine engineering.SUBSTANCE: device comprises a frame, two cranks pivotally connected to the rod. Rod joint axes are arranged at a right angle equal to the angle between the crank shaft axes. The crank joint axes are crossed at an angle α the sine of which is the ratio of the cranks length to the rod length. On the shaft of the leading crank, two half-disks are fixed, the mass moment of inertia of which is several times higher than the mass moment of inertia of the driven crank. The drum is attached to the crank with two lever brackets movable along the rod and secured providing finding the center of gravity in the rod cap.EFFECT: variable angular speed of the driving crank is aligned, increasing the intensity of the parts barreling and the device service life.2 cl, 2 dwg

Device for sharpening blade and cutting device containing it // 2618298
FIELD: machine engineering.SUBSTANCE: device includes a honing grindstone having the grinding surfaces that come into contact with the blade and frame, operably coupled to the grindstone and is rotatably fixed on the rotary element of the site. The weight element is attached to the frame and is located movably grindstone to the edge of the blade. With grindstone frame and associated connecting piece, and a weight element movable grindstone to the blade edge by mentioned connecting piece.EFFECT: in the process of cutting the material provided by the periodic sharpening of the blade edges, which increases the service life.22 cl, 5 dwg

ulti-functional unit for grinding and replacement of removable end of the electrodes // 2618045
FIELD: mechanical engineering.SUBSTANCE: device comprises a frame, a drive motor output shaft and the movable balancing block, which is mounted on the frame. The engine is mounted on a mobile unit, the motor shaft passes through the movable block and is connected to the desk, both sides of which have the device for removing the removable ends of the electrodes and a device for grinding them. Drives for removable ends of the electrodes are located on both sides of the table at its outer edges or a frame.EFFECT: implementation of replaceable electrode tips for grinding operations and replacing of the ends on the same equipment unattended.12 cl, 9 dwg

Clamping device to secure working tools of technological machine // 2617587
FIELD: machine building.SUBSTANCE: invention refers to machine building and may be used in portable technological machines. The clamping device of the said machine is intended for fastening of a sheet-like working tool on the working tool holder installed in a way to enable making an eccentric motion. The device comprises at least one clamping assembly with at least one movably mounted clamping element and the transmission rocker to move in at least one operating condition of the clamping element with the creation of a tensile stress in a sheet-like working tool. There is an additional clamping element movably mounted against the first clamping element.EFFECT: invention provides improved quality processing thanks to exclusion of the working tool offset with a high level of comfort of managing the clamping device.9 cl 7 dwg

echanism of unclenching honing machine bars // 2617186
FIELD: machine engineering.SUBSTANCE: honing head comprises a stepper motor, and bars of different grain, radial displacement of which the hinge mechanism controlled by a computer via a stepper motor servo motor by changing the direction of rotation.EFFECT: increased precision machining hole by providing a plateau surface to be treated.3 cl, 3 dwg

Flexible grinding product with smooth surface and its manufacturing method // 2617184
FIELD: textile, paper.SUBSTANCE: open fabric of a woven or knitted fabric is prepared, one fabric surface is coated, and the coated surface is smoothened at least partially. Wherein the coated fabric surface has one or more flat areas. Grinding agent is applied on the coated fabric surface.EFFECT: increased durability of a grinding product.24 cl, 16 dwg

ethod of parts geometric parameters stabilization // 2617073
FIELD: machine engineering.SUBSTANCE: plate is fixed on the support along its edge, the ultrasonic vibrations source is installed on the plate and its deformation is executed. Install the source of ultrasonic vibrations in the center of the plate surface and impose the ultrasonic oscillations and the static load to it. The plate deformation is carried out to the amount δ equal to where R and r - is respectively the outer and inner radius of the plate, mm; t - the thickness of the plate, mm; E - elasticity modulus of the plate material, MPa; μ - Poisson's ratio of the plate material; [σt] - the yield strength of the plate material, MPa.EFFECT: geometric shape distortion of the plate is excluded and the quality of treatment is increased.2 dwg

ethod for treatment of long cylindrical holes // 2616724
FIELD: machine engineering.SUBSTANCE: method involves boring a cylindrical hole in the long-axis workpiece clamped in the chuck and the lunette horizontal boring machine comprising a tool holder and the front and back headstock with the centers in which the treatment is carried out using a boring-reinforcing block, planted with the possibility of self-serve at established centers quill machine headstock and tailstock spindle axial guide rod with a square cross section, and clamped in the tool holder of the machine plug, excluding cranking said block from the action of cutting forces. Boring and reinforcing unit has a central internal bore of the square transverse section and is provided with boring and reinforcement units.EFFECT: high precision position the hole axis.2 dwg

oulded abrasive particles, methods of producing and abrasive articles comprising same // 2616464
FIELD: technological processes.SUBSTANCE: invention relates to abrasive treatment. Method of producing abrasive particles involves preparing a liquid solution, including non-colloidal solid particles and liquid binder, formation of at least part of liquid solution into moulded bodies in contact with a substrate, at least partial drying of moulded bodies to provide molded abrasive precursor particles, separation of at least part of moulded abrasive precursor particles from substrate and conversion of at least part of moulded abrasive precursor particles into moulded abrasive particles. Moulded abrasive particles include alpha-alumina with average size of crystal grain 0.8–8 mcm and alpha-alumina has apparent density, which is at least 92 % of real density. Every moulded abrasive particle has a corresponding surface, including a plurality of smooth sides forming at least four vertices. Also invented are moulded abrasive particles, abrasive articles comprising said particles, and methods of grinding.EFFECT: higher grinding characteristics.27 cl, 10 dwg, 5 tbl, 14 ex

Impact device for hardening metals by surface plastic deformation // 2615966
FIELD: metal processing.SUBSTANCE: invention relates to impact device for hardening of metal articles by surface plastic deformation. Impact device comprises carriage, a base on which a working cylinder with a deforming tool is mounted, connected to drive of impact action, and mechanisms of static loading of deforming tool and horizontal movement of deforming tool. Mechanism for static loading of deforming tool is made with possibility of vertical movement of deforming tool. Base is made in form of two frames, one of which is connected with mechanism of horizontal movement of deforming tool and slides on carriage, and other one – with mechanism for static loading of deforming tool and moves in vertical plane relative to first one. Drive of impact action is electropneumatic. Mechanism for static loading of deforming tool and mechanism for horizontal movement of deforming tool are made in form of a screw pair.EFFECT: result is high-quality hardened article.3 cl, 4 dwg

ethod of flexible belt grinding // 2615964
FIELD: metallurgy.SUBSTANCE: invention relates to belt grinding and may be used for belt grinding of complex sculpted surfaces such as dies formlining, molds, injection molds and others. The flexible grinding belt with the hollow inner chamber is put on the drive and driven rollers through the nonworking inner surface. Before grinding the belt is tensioned and compressed air is injected into the hollow inner chamber under pressure of 0.2-0.8 MPa. The preform is put on the moving with the cutting speed outer grinding belt layer which takes the shape of the processed surface. At the starting and ending moments of grinding belt contact with the processed surface a cavities are formed into which compressed air is supplied under pressure determined with the listed mathematical relationship and providing a straight-line trajectory of the grinding grain belt coinciding with the cutting speed vector.EFFECT: invention enables to prevent formation of blockages of the processed surface and increase geometric accuracy of its grinding.5 dwg
 
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