88 results about "Centerless grinding" patented technology

The utility model relates to a workpiece support of a centerless grinding machine, and relates to the technical field of grinding machines. The workpiece support of the centerless grinding machine comprises a cutting board support and a feeding board support, feeding boards are fixed to the feeding board support, a feeding channel used for conveying workpieces is formed between the two feeding boards, the cutting board support comprises a fixing block and a lower cutting board, the fixing block is fixed to a base of the centerless grinding machine, and the lower cutting board is fixed to the side, away from a guide wheel of the centerless grinding machine, of the fixing block. The feeding plate support comprises a fixed base fixed to a centerless grinding machine base and two coarse adjusting blocks, the two feeding plates are fixed to the upper ends of the two coarse adjusting blocks respectively, a protruding block in the width direction of the feeding channel is fixed to the upper end of the fixed base, and sliding grooves allowing the protruding block to slide are formed in the lower ends of the two coarse adjusting blocks. First fasteners are arranged on the coarse adjusting blocks, and after the two coarse adjusting blocks slide to adjust the distance between the two coarse adjusting blocks, the coarse adjusting blocks and the fixed base are fixed through the first fasteners. The feeding device has the effect of conveniently adjusting the width of the feeding channel.

An Inconel 718 dodecagonal countersunk bolt upsetting technology is characterized by comprising the following steps that blanking is conducted, specifically, blanking is conducted through a lathe according to the actual use length and diameter of a bolt; core grinding is conducted, specifically, the outer circle of the blanked blank is ground; lubricating: the blank subjected to centerless grinding is lubricated by adopting copper plating; and upsetting is conducted, specifically, the lubricated blank piece is heated and put into an upsetting mold after reaching the set temperature, upsetting is conducted through a punching machine, the columnar blank piece is subjected to one-time upsetting forming, and the bolt polish rod is machined. According to the technology, one-time upsetting forming can be achieved, the defects caused by traditional multiple-time upsetting forming are overcome, the consistency of the part size and the product quality can be guaranteed, the production efficiency can be improved, the cost can be reduced, and the technology has very high practicability and is suitable for being vigorously popularized.

The utility model relates to the technical field of automobile part machining equipment, in particular to a centerless grinding machine for automobile part machining, which comprises a box body, a body and a filter component, the body is mounted above the box body, the filter component comprises a mounting rail, a sliding frame, a fixing plate, a fixing component, filter cotton and a limiting component, and the mounting rail is fixedly connected with the box body. The sliding frame is connected with the mounting rail in a sliding mode and located on the side, away from the box body, of the mounting rail, the fixing plate is fixedly connected with the sliding frame and located on the side, away from the mounting rail, of the sliding frame, the filter cotton is connected with the fixing plate through the fixing component, the fixing component fixes the filter cotton, and the limiting component is installed on the box body. And the limiting component limits the movement of the sliding frame, so that the filter cotton can be replaced more conveniently, and the working efficiency is improved.

The utility model relates to the technical field of cylindrical grinding devices, in particular to a centerless grinding cut-in tool rest which comprises a machine frame, and the machine frame is provided with a base and a supporting frame. The outer circle cutter is mounted at the upper end of the supporting frame through a mounting seat; the hinge seat is mounted on the side wall of the support frame and is arranged opposite to the mounting seat; the middle of the hinge assembly is connected with the hinge seat in a hinged mode, one end of the hinge assembly is connected with a synchronous rotating assembly, the synchronous rotating assembly is used for abutting against a workpiece, and the other end of the hinge assembly is provided with an abutting assembly and a reset assembly. The abutting assembly and the reset assembly are located on the two sides of the end of the hinge assembly respectively. The synchronous rotating device is tightly attached to the workpiece and rotates synchronously with the workpiece, and the concentricity of the workpiece is improved.

The utility model relates to the technical field of centerless grinding machines, and discloses a centerless grinding machine quick replacement die which comprises a grinding machine base and a die holder, first sliding grooves are formed in the two sides of the top end of the grinding machine base respectively, a set of electric control telescopic columns are embedded in the two first sliding grooves respectively, a first limiting frame is installed at the output end of each set of electric control telescopic columns, and a second limiting frame is installed at the output end of each set of electric control telescopic columns. And a group of first rollers are rotationally arranged on the inner sides of the two first limiting frames, and second limiting frames are mounted on one sides of the two first sliding grooves correspondingly. According to the utility model, when the die holder needs to be taken down, the electric control telescopic column extends out to enable the first limiting frame to move upwards, so that the positions of the first roller and the second roller are flush, and then the die holder is pulled outwards, so that the die holder can be taken out, and when the die holder is installed, the two sliding blocks at the bottom end of the die holder are inserted into the tops of the two second limiting frames at the same time; and then the mold base is pushed to the tail end of the first sliding groove, and finally the electric control telescopic column is contracted to the tail end.

The invention relates to the technical field of centerless grinding machines, in particular to a centerless grinding machine grinding wheel high-steady-state finishing control method which can stably finish a high-precision grinding wheel in the dynamic process, a machine tool is provided with an MPM dynamic balancing instrument and adopts a marble lathe bed, and a three-phase asynchronous motor or a spindle motor is selected as a grinding wheel motor. A servo motor with the rated rotating speed of 3000r / min is selected as a diamond roller motor; in the process of dressing the grinding wheel by the diamond roller, the same-direction dressing mode that the linear velocity value VRlr when the spindle of the diamond roller rotates divided by the linear velocity value VGW when the spindle of the grinding wheel rotates is a fixed value qd is adopted; the dressing feeding of the grinding wheel dresser is controlled by a U shaft, and a fixed grinding wheel dressing amount is carried out each time of dressing.

An automatic centerless grinding device comprises a machining mechanism, a feeding mechanism and a feeding and discharging mechanism. The processing mechanism comprises a supporting seat, a grinding wheel and a guide wheel; during machining, the guide wheel makes contact with the workpiece to drive the workpiece to rotate, and the grinding wheel grinds the surface of the workpiece. The feeding mechanism comprises a first feeding belt and a material disc, the material disc is used for containing workpieces, and the first feeding belt is used for conveying the material disc. The feeding and discharging mechanism is used for transferring the workpieces from the material disc to the workpiece supporting base for machining and transferring the machined workpieces from the workpiece supporting base to the material disc. Compared with the prior art, full-automatic feeding, machining and discharging can be achieved, the machining efficiency is remarkably improved, and the labor intensity of workers is reduced.

The nickel-titanium wire precise positioning device for the precise centerless grinding machine comprises a grinding machine tool, a first grinding machine and a second grinding machine are arranged on the upper end face of the grinding machine tool respectively, the first grinding machine and the second grinding machine are both connected to the grinding machine tool in a sliding mode, and a display screen is fixedly arranged on the outer wall of the grinding machine tool. A positioning assembly is arranged between the first grinding machine and the second grinding machine, the positioning assembly comprises two positioning seats, V-shaped frames and a two-way screw rod, the two positioning seats are symmetrically arranged at the upper end of the grinding machine tool, the V-shaped frames are arranged at the upper ends of the two positioning seats, and the two-way screw rod is arranged at the lower end of the two positioning seats. The two ends of the two-way lead screw are rotationally installed in the two V-shaped frames, nickel-titanium wires of different sizes can be conveniently ground while the nickel-titanium wires are accurately positioned, the height of the nickel-titanium wires is adjusted so that the nickel-titanium wires can be located at the optimal grinding position in the grinding process, and practicability is achieved.

The invention discloses a quartz long rod axial outer circle grinding machining tool, and belongs to the technical field of quartz machining. The tool is matched with a high-precision numerical control lathe and mainly comprises a special customized drill bit (diamond abrasive), a bearing end seat, a sleeve, a belt pulley, an output shaft and the like. The core is a special grinding head accessory based on the centerless grinding principle, the special grinding head accessory is fixed to a lathe tool rest through a motor mounting base, and a three-phase motor drives a customized drill bit to rotate at a high speed through a belt pulley; the drill bit is matched with a to-be-machined outer circle of a quartz rod in shape. During machining, a workpiece is clamped by a lathe spindle to rotate and is matched with a bearing end seat capable of being precisely adjusted to provide auxiliary support, and the machining rigidity and stability of a long rod are guaranteed. According to an existing numerical control lathe platform, efficient and high-precision grinding of the outer circle of the quartz long rod is achieved by additionally installing a special grinding tool, and the method has the advantages of being simplified in process, improved in efficiency, low in cost, convenient to modify, high in machining precision and the like.

The application discloses a centerless grinding machine with a precision feeding transmission positioning device and a positioning method, which can adjust the stretching of a ball screw in the bearing direction, effectively overcome the transmission error of the ball screw, and meet the requirements of high-end manufacturing industry on the precision part processing size tolerance accuracy. The application comprises the following: a driving servo motor is connected with a planetary reducer, the planetary reducer is installed on one side of a machine tool bed, the planetary reducer is connected with a ball screw, the ball screw is arranged in the machine tool bed, the other end of the ball screw is connected with a pre-stretching assembly, the pre-stretching assembly is used for realizing the stretching adjustment of the ball screw in the axis direction, overcoming the transmission error of the ball screw, a transmission nut seat is connected with the ball screw, a feeding moving sliding table is connected with the transmission nut seat, and the ball screw assembly cooperates with the transmission nut and the pre-stretching assembly and is used for controlling the precise feeding movement of the feeding moving sliding table on the machine tool bed.

The utility model discloses a steel ball blanking assembly for a centerless grinding machine, which comprises a rack, a support frame positioned in a grinding space is arranged above the rack, a material jacking frame is arranged above the support frame, a material jacking plate is arranged in the material jacking frame, two support pieces are arranged on the side edge above the material jacking plate, and the support pieces are arranged on the support frame. The upper surface of each supporting piece is provided with an inclined table top used for containing steel balls, an inclined flow guiding face is arranged above the material jacking frame, the high end of the inclined flow guiding face is flush with the low end of the inclined table top, an inclined discharging flow guiding support is arranged on the side edge of the supporting frame, the high end of the discharging flow guiding support is communicated with the inclined flow guiding face, and the lower end of the discharging flow guiding support is communicated with the inclined flow guiding face. A discharging storage frame communicating with the lower end of the discharging flow guide support is arranged on the side edge of the machine frame. According to the structure, rapid discharging is achieved, efficiency is improved, and equipment cost is reduced.

The invention provides an accurate grinding roller curved surface contour forming method, and belongs to the technical field of curved surface body machining. Comprising the steps of blanking, rough turning, heat treatment, semi-finish turning of end faces, rough grinding of rolling surfaces, finish turning of two end faces, grinding of the two end faces, finish grinding of the rolling surfaces and ultra-finish of the rolling surfaces. In order to prevent the rolling surface from having tool marks after rough turning, the blanking length is equal to the length of the two blanks; after blanking, rough turning is conducted on the blank, and turning is conducted on the position where the center is connected with the tool mark to form two rollers; after rough turning is finished, heat treatment salt bath quenching treatment is conducted; after heat treatment, turning an end face as a centerless grinding machining end face reference; roughly grinding a rolling surface after semi-finish turning the end surface, and removing heat treatment black skin; roughly grinding the rolling surface and then finely turning two end surfaces; performing semi-fine grinding on rolling surfaces after two end surfaces are subjected to finish turning, and roughly forming a logarithmic curve profile at the moment; two end faces are ground after the rolling face is semi-finely ground, so that the end face benchmark of the finely ground rolling face is guaranteed; after two end surfaces are ground, the rolling surface is finely ground, and a logarithmic curve profile is basically formed and then the rolling surface is superfinely ground.

The utility model relates to the technical field of centerless grinding machines, and discloses a bracket device capable of increasing the grinding length of a centerless grinding machine, which comprises a bottom plate, the top of the bottom plate is fixedly connected with an electric sliding rail, the inside of the electric sliding rail is slidably connected with a sliding block, and the top of the sliding block is rotatably connected with two connecting plates. Sliding blocks are rotatably connected to the ends, away from the sliding blocks, of the two connecting plates, connecting devices are fixedly connected to the tops of the sliding blocks, rotating brackets are rotatably connected to the two sides of each connecting device, and supporting plates are fixedly connected to the tops of the rotating brackets; mounting assemblies used for mounting the bottom plate are fixedly connected to the two sides of the bottom plate. According to the bracket device, the length difference of shaft parts of different devices is large, the bracket device can be flexibly lengthened, it is guaranteed that long shaft workpieces are stably supported during grinding, and the situation that the devices are replaced or complex auxiliary tools are adopted due to the special lengths of the workpieces is not needed.

The application discloses a centerless grinding machine tool rest and a grinding wheel wear detection system for metal guide wire processing, and relates to the technical field of centerless grinding machines.The centerless grinding machine tool rest comprises a tool rest bottom plate, a guide wire side limiting plate, a tool rest plate, a blowing joint, a blowing plug, a measuring gas joint and a sealing ring.The centerless grinding machine tool rest is installed on a grinding feed mechanism of a grinding machine, and a blowing small hole and a measuring gas hole are arranged.The compressed air of the blowing small hole blows cutting fluid in a grinding process into a ring groove of a grinding wheel.The measuring gas hole is connected with a pneumatic flow meter.A grinding wheel is provided with a dressing ring.The wear of the grinding wheel is determined by comparing the difference between the air flow through the measuring gas hole and blown to the dressing ring of the grinding wheel and other parts.During the wear of the grinding wheel, the wear amount of the diameter of the grinding wheel is determined through the conversion of the above flow difference.The grinding feed mechanism drives the tool rest to move close to the grinding wheel by the same distance, so as to compensate the wear of the grinding wheel and realize the long-time stable production of the metal guide wire.

The utility model discloses a coreless grinding machine protection device, and particularly relates to the technical field of grinding machines, the coreless grinding machine protection device comprises a coreless grinding machine and a supporting frame arranged on the left side of the outer surface of the coreless grinding machine, and electric sliding rails are jointly and fixedly installed on the front side and the rear side of the outer surface of the supporting frame and the front side and the rear side of the outer surface of the coreless grinding machine; and a protective cover for protection during operation of the coreless grinding machine is fixedly mounted on the top surfaces of the sliding blocks of the two electric sliding rails. According to the protective device for the coreless grinding machine, in the actual work, a sliding block of the electric sliding rail drives the protective cover to move so as to cover the coreless grinding machine and prevent chippings from splashing, the suction fan can suck dust flying in the protective cover into the filter box through the conveying pipe, the filter plate filters the dust, and the dust is prevented from being splashed. And the filtered air enters the storage cylinder and is in contact with water in the storage cylinder so as to carry out secondary treatment on the air, so that the dust is conveniently treated, and the damage of the dust to the body of a worker is effectively avoided.

The utility model discloses an automatic feeding and feeding device for a centerless grinding machine, and relates to the technical field of centerless grinding machines, the automatic feeding and feeding device for the centerless grinding machine comprises a centerless grinding machine device, a feeding groove is formed in a feeding table, an automatic separating and blocking assembly is installed in the feeding table, and the centerless grinding machine device is connected with the automatic separating and blocking assembly. An automatic pushing feeding assembly is installed on the surface of the inner side of the feeding table, and a circular pushing block is installed on the surface of the outer side of the automatic pushing feeding assembly. The belt, the connecting block, the circular pushing block and the moving groove are matched with one another, so that the circular pushing block circularly moves, metal pipes are automatically fed to the machining table, manual intervention and operation time are reduced, production efficiency is greatly improved, the machining period is shortened, yield is increased, production precision can be improved, and production cost is reduced. The consistency and the stability of the product quality are ensured, and the risk of accidents is reduced. The operation process is safer and more reliable, and the safety of operators is protected.

The invention relates to a centerless grinding machine for machining automobile parts. The centerless grinding machine comprises a base; the two ends of the adjusting shaft are rotatably arranged on the base; one end of the frame body is fixedly arranged on the adjusting shaft in a sleeving manner; the center shaft is parallel to the adjusting shaft, and the two ends of the center shaft are rotatably arranged at the other end of the frame body; the grinding wheel is fixedly arranged on the central shaft in a sleeving manner; the adjusting device is arranged on the base and used for driving the adjusting shaft to rotate; the feeding device is arranged on the base; the first belt pulley is fixedly arranged at one end of the central shaft in a sleeving manner; the first motor is fixedly arranged on the base and located at one end of the adjusting shaft, and an output shaft of the first motor and the adjusting shaft are coaxially arranged; the second belt pulley is fixedly arranged on an output shaft of the first motor in a sleeving manner; and the transmission belt is wound on the first belt pulley and the second belt pulley.

The utility model provides a kind of automatic cleaning device of centerless grinding machine processing discharge, including centerless grinding machine, the inlet end of the discharge filter screen of the discharge port of centerless grinding machine is connected, the inlet end of discharge filter screen is equipped with shower nozzle, shower nozzle is connected cleaning fluid supply system by pipeline, the below of the inlet end of discharge filter screen is equipped with first cleaning fluid collection tank, first cleaning fluid collection tank is closely equipped with funnel-shaped material collecting groove in the side, the outlet end of discharge filter screen is inserted into the upper end opening of funnel-shaped material collecting groove, the lower end of funnel-shaped material collecting groove is export and is placed above the inlet end of a conveying belt, conveying belt is grid material belt, the both sides of conveying belt are equipped with baffle, the below of conveying belt is equipped with second cleaning fluid collection tank.The utility model is equipped with shower nozzle at the discharge port of centerless grinding machine, can be sprayed and cleaned to bearing ring first time of grinding processing completion, reduce the deposition of grinding mud, reduce cleaning difficulty, also reduce handling, save time and labour, save cost.

The utility model discloses an automatic feeding and discharging device of centerless grinding machine relates to centerless grinding machine feeding and discharging equipment technical field, include: centerless grinding machine body, discharging mechanism, the discharging mechanism is arranged in the side of centerless grinding machine body, the utility model discloses material blocking clamping plate realizes quick installation through the insertion cooperation of both sides clamping block and material blocking plate slot, and the automatic locking positioning of trapezoidal jack driven cooperation support spring, the design supports operator according to different workpiece pipe diameter quick replacement corresponding height's material blocking clamping plate, guarantees material export end always keeps single piece through state, significantly improves the compatibility of equipment to different specifications workpieces, and first motor directly drives the rotation of the lack of side material blocking disc, and through the adjustment of its rotating speed can change the frequency of the notch and the lower end alignment of material blocking clamping plate, and this pure mechanical rate control scheme can accurately adjust the discharging quantity in unit time without complex sensor or programming system, and adapts to different processing rhythm demand.

The utility model discloses an automatic grinding device suitable for short shafts with larger size span, which comprises a robot, and a product turnover frame, an automatic feeding machine and a blanking turnover frame which are arranged in the operation range of the robot, a feeding conveyor, a centerless grinding machine, a discharging conveyor, a receiving conveyor and a rotary conveyor are sequentially arranged between the automatic feeding machine and the discharging turnover frame, a mechanical discharging hand is arranged between the feeding conveyor and the automatic feeding machine, and a mechanical discharging hand is arranged between the discharging conveyor and the receiving conveyor. The mechanical discharging hand and the mechanical discharging hand each comprise a bearing platform, a plurality of L-shaped arc-shaped bearing arms are arranged on the bearing platforms at intervals, the top of each L-shaped arc-shaped bearing arm is in shaft connection with the corresponding material supporting plate, the sides, away from the L-shaped arc-shaped bearing arms, of the multiple material supporting plates are connected through a synchronizing shaft, and the synchronizing shaft is in shaft connection with one end of a pushing air cylinder. The device can be suitable for products of different sizes, and is stable in operation, safe and reliable.

The utility model discloses a centerless grinding machine belongs to centerless grinding machine technical field, it includes bed body, the top fixedly connected with control box of bed body, one side fixedly connected with servo motor of control box, set up the protection cover on two mounting brackets, can in the grinding process, play the protection function, avoid the high -speed rotation's abrasive wheel to the operator to cause the harm, can also play the prevention and treatment of the chip in the grinding process and fly around, avoid the chip to the operator to cause the harm, also protected the environment, set up the spring between mounting bracket and protection cover, can always close when grinding to different size workpiece, ensure the protection effect, set up the placement rod by servo motor, gear and rack drive on control box, realized the function of automatic feeding and discharging, need not manual feeding and discharging, not only reduced the manual cost, reduced the labor intensity of operator, and simple and reliable structure, high integration.

The invention discloses a centerless grinding device for machining a motor shaft, which relates to the technical field of centerless grinding machines, and comprises a grinding machine tool body, a base body arranged at the bottom of the grinding machine tool body, a motor shaft body arranged in the grinding machine tool body, a driving device arranged on the back of the grinding machine tool body, and a driving device arranged on the back of the grinding machine tool body, the self-adaptive grinding mechanism is movably arranged on the inner wall of the grinding machine tool body, the bottom adjusting mechanism is connected with the inner wall of the grinding machine tool body, and through the arrangement of the self-adaptive grinding mechanism and the bottom adjusting mechanism, when the device grinds a stepped motor shaft body, the device can be matched with the shape of the shaft body in a self-adaptive mode to complete efficient machining; the problem that according to traditional centerless grinding equipment, due to the fact that the shape of a grinding wheel is fixed, shaft bodies of complex structures such as stepped integral shafts and three-section type motor shafts in the new energy field cannot be attached during machining is effectively solved, waste of working hours caused by debugging is avoided, and the comprehensive production cost of machining of multiple types of motor shafts is reduced.

This invention discloses a zero-error roundness centerless grinding device with online closed-loop dimensional measurement and control, belonging to the field of precision bearing grinding technology. Addressing the industry pain points of traditional grinding machines worldwide—namely, inherent roundness errors due to eccentricity and uneven loading, lack of end-to-end online precision control, and poor batch consistency—this invention employs a double-symmetrical rigid fulcrum to permanently lock the workpiece center. Combined with a power mechanism driving the workpiece to rotate concentrically, the grinding wheel performs symmetrical and balanced grinding around the circumference. Simultaneously, a high-precision dimensional measuring head collects workpiece parameters in real time and provides closed-loop dynamic compensation for grinding deviations. The device achieves alignment of the workpiece's rotation, geometry, grinding, and inspection centers, completely eliminating elliptical, angular, and radial runout errors at their structural root, achieving theoretically zero roundness and ultra-high precision machining. The equipment exhibits excellent rigidity, low operating vibration, and extremely high batch processing stability, filling the global gap in zero-error grinding technology for precision rotating parts under extreme working conditions.

The invention is suitable for the technical field of bearing grinding, and provides a bearing and a machining system. A bearing device matched with the centerless grinding device is arranged on the centerless grinding device; the bearing device comprises a butt joint column; a baffle is fixed to the end of the butt joint column. A plurality of annular grooves are uniformly formed in the outer wall of the butt joint column; a plurality of ball seat pieces are slidably arranged between the inner walls of the annular groove; arc-shaped springs are connected between the ball seat pieces; a ball matched with the bearing is arranged between every two opposite ball seat pieces in a ball hinge mode. A baffle ring matched with the extension rod in an inserting manner is arranged on the butt joint column in a sliding manner; according to the device, through a butt joint column, the ball seat pieces and a ball structure in the bearing device, series connection clamping and positioning of multiple bearing outer rings can be achieved, free rotation and axial limiting of the bearings are kept in the grinding process, the stability of grinding machining is greatly improved, the grinding efficiency is improved, and the grinding quality is improved. And deviation or toppling of the bearing is avoided.

The utility model discloses a kind of connecting mechanism based on centerless grinding machine, it is related to centerless grinding machine auxiliary equipment technical field, and it includes: angle adjusting mechanism, the angle adjusting mechanism is used to adjust the height and inclination angle of connecting mechanism whole, the angle adjusting mechanism includes support base plate, and the lower portion of the support base plate is fixedly connected with four groups of mobile universal wheel;In the utility model, the thread transmission of long screw rod and upper sliding block is driven by hand wheel, linkage first rotating arm and second rotating arm form four connecting rod mechanism, realize the accurate adjustment of support platform height and inclination, adapt to diversification production scene, auxiliary support mechanism adopts the taper self-locking of trapezoidal external thread block and internal thread ring, when rotating internal thread ring, it is squeezed trapezoidal external thread block radial shrink and holds tightly adjusting rod along taper downwards, only needs to rotate reversely when unlocking, and it is automatically released locking force, effectively inhibit the vibration deviation caused by inclination in the operation of conveying belt, improve workpiece transmission stability.

The invention relates to the field of centerless grinding machines, and discloses a multidirectional supporting fixed centerless grinding machine which comprises a grinding machine body, a movable seat, a fixed seat, a workpiece support, a sectional type material conveying structure, a transfer driving assembly and an adjusting type support, a working cabin is installed on the grinding machine body, an adjusting wheel is installed on the movable seat, and a grinding wheel is installed on the fixed seat. The sectional type material conveying structure is provided with a first material conveying section and a second material conveying section, a discharging opening is formed in the side face of the second material conveying section, and the transfer driving assembly can drive the second material conveying section to conduct circular motion so that the discharging opening can directly face the feeding end of a workpiece support on the next grinding machine. The adjustable support can drive the feeding end and the discharging end of the workpiece support to sequentially ascend and descend along with the circular motion of the transfer driving assembly. According to the multi-directional supporting type grinding machine, the automation degree of the grinding procedure is improved through multi-directional supporting, through cooperative linkage of the sectional type material conveying structure and the transfer driving assembly, automatic linkage of the multiple grinding machines is achieved, and directional conveying of grinding workpieces is achieved.

The invention relates to a grinding wheel spindle angle precision adjusting mechanism of a centerless grinding machine, which comprises a supporting seat for mounting a grinding wheel spindle and an adjusting seat for rotatably mounting the supporting seat, and an angle adjusting mechanism for driving the supporting seat to drive the axis of the grinding wheel spindle to rotate is arranged on the adjusting seat. An angle detection mechanism used for detecting the rotating angle of the supporting seat is arranged on the supporting seat, the angle adjusting mechanism drives the supporting seat to rotate and is used for adjusting the included angle between the axis of the grinding wheel spindle and the axis of the workpiece to be machined, and the angle detection mechanism further drives and adjusts the angle adjusting mechanism to achieve negative feedback adjustment of the included angle. The supporting seat drives the grinding wheel spindle to rotate and adjust, the angle detection mechanism is arranged on the supporting seat, the rotating angle of the supporting seat is detected through the angle detection mechanism, and therefore negative feedback adjustment can be further conducted on the rotating angle of the supporting seat, and accurate angle rotation of the supporting seat is guaranteed; and the external thread lead of grinding wheel machining is ensured to meet the requirement.

The present application relates to the technical field of bar grinding, and discloses a metal bar centerless grinding device, wherein the inclined supporting surface of the supporting plate is arranged in the same plane with the inclined part of the butt joint plate, so that the bar always adheres to the side surface of the guide wheel under the action of gravity, and the guide wheel stably drives the bar to rotate and axially feed from the inlet to the outlet; the bar is actively sent in and out at the synchronous speed in cooperation with the guide mechanisms on both sides, so that the traditional phenomenon of "staying at the inlet and trailing at the outlet" is completely eliminated, the two ends are avoided from being excessively ground, and the drum-shaped error of "small at both ends and large in the middle" is eradicated, thereby ensuring the diameter consistency and straightness of the whole bar. The present application solves the problem that the conventional centerless grinding device is difficult to maintain stable axial feeding when the bar enters and exits the guide wheel area at the head and tail, which leads to excessive grinding of the two ends and the drum-shaped error of "small at both ends and large in the middle", and causes the safety hidden trouble of the diameter consistency and straightness of the bar surface.

The invention discloses a laser cladding repair method for a piston rod of an oil damper, and relates to the field of rack repair of rail transit oil dampers. The method comprises the steps of clamping and path verification, pretreatment, laser cladding, aftertreatment, finished product detection and the like. In the pretreatment stage, damaged parts are removed through laser cutting, impurities are removed through laser cleaning, and a self-adaptive cladding path is generated; modified composite alloy powder is adopted for laser cladding, coaxial powder feeding, argon protection and real-time temperature control are matched, and a gradient coating structure can be selected; laser milling, centerless grinding, laser annealing and finishing are performed in post-treatment, so that the dimensional precision and the surface performance are ensured. The process is environment-friendly and efficient, traditional electroplating pollution is avoided, the repaired piston rod cladding layer is tightly combined, the abrasion resistance and corrosion resistance are excellent, the operation and maintenance cost can be remarkably reduced, the service life of a shock absorber is prolonged, and the method is suitable for repairing piston rods in various failure forms such as scratching, corrosion and abrasion.

The utility model provides a crankshaft centerless grinding manipulator clamping jaw, which belongs to the crankshaft processing technical field, and comprises a support, the inner wall of the support is provided with symmetrically distributed sliding chutes, the inner walls of the sliding chutes are slidably connected with sliding blocks, the outer walls of the sliding blocks are provided with extrusion grooves, the outer walls of the sliding blocks are fixedly connected with a moving frame, and the moving frame is provided with a clamping groove. An H-shaped groove is formed in the outer wall of the movable frame, the device further comprises a convenient-to-disassemble and replace assembly, the convenient-to-disassemble and replace assembly comprises a two-way screw rod B rotationally connected to the outer wall of the movable frame, and the outer wall of the two-way screw rod B is in threaded connection with limiting blocks which are symmetrically distributed. According to the utility model, the two-way screw rod B drives the limiting block to slide, so that the connecting block can be quickly locked and unlocked, the clamping jaw can be replaced without an additional tool, meanwhile, the sliding fit design of the H-shaped groove and the connecting block can ensure the stability of the connected clamping jaw, and the clamping jaws in different shapes can be replaced according to the type of the crankshaft through the replacement of the clamping jaw, so that the clamping jaw is convenient to use. And the universality of the equipment is improved.