5897results about "Grinding beds" patented technology

The invention belongs to the technical field of piston rod machining equipment, particularly relates to a hydraulic oil cylinder piston rod machining device and a method thereof, and aims to solve the problem that an existing hydraulic oil cylinder piston rod machining device cannot integrally grind and polish a piston rod at a time. The bottom of the bearing platform is fixedly connected with the upper side of the base, the upper side of the base is fixedly connected with four symmetrical stand columns, and the upper sides of the four stand columns are fixedly connected with the same top plate. According to the hydraulic oil cylinder piston rod machining device and method, when the piston rod body is ground and polished through the device, fixing points, at the two ends of the piston rod body, of the clamp are switched; and therefore, when the device grinds and polishes the piston rod body, the whole piston rod body can be polished without halting, taking down the piston rod body and then fixing the piston rod body, the machining efficiency of the device on the piston rod body is remarkably improved, and the yield of the device is improved.

The invention relates to the technical field of polishing devices, and particularly discloses a metal accessory polishing device which comprises a polishing table, a connecting rod is slidably connected to an inner cavity of the polishing table, a polishing mechanism is arranged on the outer surface of the connecting rod, a double-station assembly is arranged on the upper surface of the polishing table, and a dust removal assembly is arranged on the outer surface of the double-station assembly. The double-station assemblies alternately work, so that the waiting time can be remarkably shortened, the polishing efficiency is improved, metal accessories can be flexibly fixed, the situation that the metal accessories are damaged due to the fact that the action force of the polishing wheel on the metal accessories is too large is prevented, and when the metal accessories are subjected to the large action force of the polishing wheel, an alarm can be given in time; according to the polishing device, workers can conveniently maintain the polishing device in time, so that the rejection rate is reduced, chippings generated in the polishing process can be cleaned in time through the dust removal assembly, the polishing precision is improved, and the cleaned dust can be collected in time.

The invention discloses a polishing device for steel structure machining, and relates to the technical field of polishing for steel structure machining, the polishing device comprises a rack, L-shaped beams arranged in frames on the two sides of the top of the rack and conveyors installed on the two sides of the rear portions of the L-shaped beams, and a conveying compression roller is arranged between two vertical plates; a pressure applying assembly is mounted on the vertical plate; a reciprocating seat is arranged between the L-shaped beams, a lower grinding wire roller is installed at the rear end of the first rotating shaft, and an upper grinding mechanism is installed on the upper portion of the rear end face of the reciprocating seat. A dust blowing assembly is mounted on the inner frame wall of the rack; a side groove polishing mechanism is installed on the lower portion of the rack. Through cooperation of the upper grinding mechanism and the side groove grinding mechanism, all-directional grinding of H-shaped steel or I-shaped steel is achieved, efficient grinding operation of a steel structure side groove can be achieved, and the grinding quality and efficiency are improved; the lower grinding screw roller and the upper grinding screw roller can conduct double grinding on the upper end face and the lower end face of the steel structure at the same time, and the grinding quality is effectively improved; and all-around refined grinding of the steel structure is achieved.

The invention relates to the technical field of grinding machining, and particularly discloses a four-row cylindrical bearing raceway grinding machining device and method.The four-row cylindrical bearing raceway grinding machining device comprises a loading unit, a grinding unit and a grinding unit, the loading unit comprises a rotary table, a flexible clamping piece matched with a bearing outer ring is arranged on the rotary table, and a concave part is arranged in the flexible clamping piece; the grinding unit comprises a grinding motor, the output end of the grinding motor is connected with a rotating shaft, a grinding disc is arranged at the lower end of the rotating shaft, and a multidirectional dynamic cooling piece is arranged on the lower end face of the lifting air cylinder. Uniform clamping force is applied to the outer wall of the bearing outer ring through the flexible clamping piece, clamping stress is restrained, clamping deformation is small, and microscopic cracks caused by stress concentration are avoided. The multidirectional dynamic cooling piece integrates axial injection and radial injection, thermal damage is blocked, the temperature rise of a grinding area is effectively reduced, and the risk of surface burn is eliminated; the high-pressure cooling liquid scours a grinding interface in a turbulent flow mode, and microscopic cracks caused by secondary extrusion of abrasive particles are avoided.

The invention relates to a machining device for optical workpieces, to a use of a cross-table, and to a method for facing an optical workpiece, wherein the workpiece is first fed to a tool along a roller-supported feed axle and is then machined by facing only by axial movement of the tool. Furthermore, the workpiece being machined is moved along a transverse axis with hydrostatic mounting during machining. This enables a simple and cost-effective design and highly precise machining.

The utility model relates to a clamp for accurate grinding of a right-angle measuring tool workpiece. The clamp comprises a base, a pressing plate and a top plate. The base is L-shaped, a plurality of vacuum chucks are embedded in the bottom surface of the positioning groove at intervals, and the bottom of each vacuum chuck is connected to a vacuum generator; two limiting tables are arranged on the base, supporting blocks are fixed to the tops of the two limiting tables respectively, the two ends of the top plate are fixed to the two supporting blocks respectively, guide rods arranged in the vertical direction are fixed between the two supporting blocks and the top plate respectively, the pressing plate is located between the base and the top plate, and the two ends of the pressing plate are slidably connected to the two guide rods in a sleeving mode respectively; and the top plate is connected with a pressing driver. The base is matched with the pressing plate, the right-angle measuring tool to be machined is pressed and positioned under the combined action of the L-shaped upper clamping face and the L-shaped lower clamping face, and clamping is reliable; a vertical pressure is provided through a vacuum negative pressure adsorption force mode, so that the horizontal plane static friction force of the right-angle measuring tool to be machined is improved, and a workpiece is stably clamped on the clamp.

The utility model relates to the technical field of ship mechanical part machining, in particular to a polishing device for ship mechanical part machining, and solves the problem that in the prior art, ship mechanical parts of different shapes and sizes cannot be conveniently adjusted and fixed, so that the polishing effect is poor. A polishing device for ship mechanical part machining comprises a machining table and a polishing machine, the machining table is provided with a sliding groove, the interior of the sliding groove is slidably connected with a mounting block, the top of the mounting block is provided with a bearing plate through a buffering mechanism, the surface of the bearing plate is fixedly connected with four supporting blocks, and the surfaces of the supporting blocks are in threaded connection with screws; a clamping drill is fixedly connected to the surface of the screw rod, a plurality of limiting grooves are formed in the surface of the bearing plate, and limiting rods are arranged in the limiting grooves in a penetrating mode. According to the polishing fixture, clamping and fixing of parts with different shapes and sizes are guaranteed, so that the parts can be normally polished, and the polishing effect of the parts cannot be affected.

The bearing retainer magnetic polishing device comprises a magnetic polishing machine and a material overturning frame located at the front end of the magnetic polishing machine, a collecting groove is formed in the right side of the material overturning frame, and a cellular bearing frame is connected to the material overturning frame through a material overturning mechanism; the material turning mechanism comprises a driving air cylinder, a sliding table, a material turning rod, an arc-shaped top shell, a material turning guide groove and a circular sliding block, an equal dividing mechanism is arranged in the cellular bearing frame and comprises a set of transverse fixing plates and a plurality of vertical adjusting plates, and a collecting box is placed in the collecting groove. The bearing retainer magnetic polishing device has the beneficial effects that the bearing retainers needing magnetic polishing are placed in the lattices, the bearing retainers can be prevented from being collided and damaged in the magnetic polishing process, the latticed bearing frames can be adjusted according to the sizes of the bearing retainers, the overturning mechanism can drive the latticed bearing frames to automatically overturn and discharge, and the bearing retainers are prevented from being damaged. And in cooperation with a collecting box in the collecting groove, metal impurities attached to the surface of the bearing retainer can be washed conveniently, and the magnetic needles can be collected conveniently.

The utility model relates to the field of automatic cutting equipment, in particular to quenching pipe automatic feeding and cutting equipment, which comprises a control system, a feeding device, a cutting device and a cut-off detection mechanism, and the feeding device, the cutting device and the cut-off detection mechanism are respectively in control connection with the control system. A cut-off detection mechanism is arranged to replace a correlation type photoelectric sensor in the prior art, and the cut-off detection mechanism specifically comprises a driven detection pressing wheel, a detection block and a proximity switch; a detection block and a proximity switch in the cut-off detection mechanism can be arranged far away from the cutting cavity or can be isolated from the cutting cavity, so that dust, water or other cooling liquid, sand and other impurities generated in the quenching pipe cutting process cannot affect detection of the proximity switch, and the accuracy of cut-off detection of the quenching pipe is guaranteed; automatic feeding and cutting of the quenching pipe are achieved, the production efficiency is improved, and the labor cost is saved.

The invention provides glass edge grinding equipment. The glass edge grinding equipment comprises a rolling supporting platform, a grinding device and a limiting device. The rolling support platform is used for rolling and supporting a glass plate, and the distance between a polished part and a human body standing position can be adjusted by adjusting deformation; the limiting device is used for supporting one side of the polished edge of the glass plate in a rolling manner; a grinding disc of the grinding device penetrates out of the position between the two supporting assemblies of the limiting device. A grinding groove is formed in the side wall of the grinding disc, is in a closed-loop shape around the axis of the grinding disc and is of a V-shaped groove structure; the limiting device can change the relative protruding range of the grinding disc by adjusting the position of the supporting assembly. The grinding device can vertically move through adjustment, so that the grinding disc is matched with the bearing plane of the rolling support platform; the limiting device vertically moves along with the grinding device; parameters can be automatically adjusted according to grinding requirements, use and operation are convenient, and the adjusting accuracy is high. And the size of the workbench can be adjusted according to requirements, a more suitable working station is provided, and operation is convenient.

The invention relates to the technical field of robots, and discloses a municipal drainage pipeline local grinding robot and a method thereof.The municipal drainage pipeline local grinding robot comprises a robot body, a walking mechanism, a fixing mechanism, a grinding mechanism and a control mechanism; the robot main body comprises a box body and a plurality of driving mechanisms arranged in the box body; the control mechanism is used for controlling the driving mechanisms to drive the walking mechanism, the fixing mechanism and the grinding mechanism to operate. The walking mechanism comprises walking wheels and is used for driving the robot to move in a DN400-600 pipeline at the corresponding pressure smaller than the maximum pressure allowed to be borne by the pipe wall. The fixing mechanism comprises a plurality of fixing plates arranged on the periphery of the robot body, and the fixing plates can extend to be in close contact with the inner wall of the DN400-600 pipeline. The grinding mechanism is used for conducting local grinding and comprises a grinding head and a grinding arm. According to the method, the local problem of the municipal drainage pipeline can be accurately and efficiently repaired, secondary damage to the pipeline in construction is avoided, all operation steps are accurate and controllable, the overall stability is high, and adaptability is good.

The invention belongs to the technical field of grinding equipment, and particularly relates to a welded pipe mold cambered surface smoothness accurate grinding device which comprises a workbench, a fixing assembly is arranged on one side of the upper end of the workbench and comprises two first circular plates arranged at the upper end of the workbench in a sliding mode, and an accurate grinding assembly is arranged on one side of the fixing assembly. The accurate grinding assembly comprises an arc-shaped plate slidably arranged at the upper end of the workbench, the side, close to the first circular plate, of the arc-shaped plate is wrapped with abrasive paper, second rectangular strips are rotatably arranged at the two ends of the side, away from the abrasive paper, of the arc-shaped plate, and a third rectangular strip is arranged between the second rectangular strips. A fourth rectangular strip is fixedly connected to the end, away from the arc-shaped plate, of the third rectangular strip, a second rectangular hole is formed in the position, corresponding to the third rectangular strip, of the fourth rectangular strip, and the third rectangular strip is slidably arranged in the second rectangular hole. And the practicability is low.

The grinding machine for the metal workpiece comprises a machine body, a three-jaw chuck is connected to the position of a main shaft of the machine body, a linear guide rail is connected to the top of the machine body, and a tool base is connected to the top of the linear guide rail; a grinding mechanism is arranged at the top of the tool base, supporting mechanisms are arranged at the positions, located on the two sides of the grinding mechanism, of the top of the tool base, a shaft workpiece is inserted into supporting rings in a penetrating mode, then one end of the shaft workpiece is clamped through a three-jaw chuck, and the supporting rings are arranged on the two sides of a machining part of the grinding mechanism for supporting; the supporting ring coaxial with the three-jaw chuck can well support the shaft workpieces, so that when some long shaft workpieces are machined, the problem that the grinding depths of the surfaces of the workpieces are inconsistent due to the fact that the shaft workpieces deform and bend due to the fact that a supporting point is far away from the machining position can be solved.

The invention belongs to the technical field of glass processing, and particularly relates to a full-automatic optical glass polishing machine which comprises a polishing machine body, two first guide rails are fixedly connected to the interior of the polishing machine body, a mounting table is slidably arranged on the two first guide rails, and a fixing groove is formed in the upper surface of the mounting table; a fixing disc is rotatably arranged in the fixing groove, two fixing blocks are fixedly connected to the upper surface of the glass bearing plate, first groove bodies are formed in the sides, close to each other, of the two fixing blocks, a first pressure spring is fixedly connected to the inner wall of each first groove body, a first magnetic block is fixedly connected to one end of each first pressure spring, and a second magnetic block is fixedly connected to the other end of each first magnetic block. By means of the first magnetic block and the second magnetic block, the problems that due to the fact that optical glass is not properly fixed, the optical glass moves or deviates due to friction force generated by polishing, glass surface polishing distribution is uneven, the thickness is different, and the optical performance and the appearance quality of the optical glass are affected are solved.

The invention relates to the technical field of polishing devices, and discloses a polishing device for a stainless steel bent pipe, the polishing device comprises a bottom plate, the top of the bottom plate is fixedly connected with a fixing plate, the inner wall of the fixing plate is rotatably connected with a bidirectional threaded rod, and the circumferential surface of the bidirectional threaded rod is in threaded connection with a moving block; a clamping plate is fixedly connected to the right side of the moving block, a one-way threaded rod is rotatably connected to the inner wall of the fixing plate, a mounting frame is slidably connected to the top of the bottom plate, a connecting rod is fixedly connected to the inner wall of the mounting frame, and a round wheel is mounted on the inner wall of the connecting rod. The two-way threaded rod drives the clamping plate to clamp the stainless steel bent pipe, the stability of the stainless steel bent pipe in the polishing process is ensured, uneven polishing caused by movement or vibration of the pipe is avoided, therefore, the working precision is improved, the time for frequently adjusting or repositioning the pipe is also avoided, and the working efficiency is improved.

The invention relates to crankshaft outer circle and end face integrated grinding equipment and a grinding method, and relates to the field of grinding equipment. According to the technical scheme, a single grinding machine is used for replacing three grinding machines in the original process, equipment investment is greatly reduced, labor and energy consumption are saved, the production efficiency is improved due to process concentration, and meanwhile the problems that an existing process is large in occupied area and large in labor consumption are solved; the outer circle and the end face of the crankshaft part can be synchronously ground through one-time clamping, positioning errors caused by multiple times of clamping are avoided, a numerical control system can conveniently monitor and compensate machining errors in real time, and the high-precision requirement is guaranteed. Specifically, a grinding wheel spindle is matched with an axial driving assembly to achieve synchronous grinding of the outer circle and the end face of the crankshaft. Diamond needles are welded to the outer circle and the side face of the grinding wheel dressing diamond roller in a buried mode, and dressing of the outer circles of a fixed grinding wheel and a movable grinding wheel and the end face of the movable grinding wheel can be completed. A metal guide wheel is selected to support a crankshaft spiral groove face, guide wheel abrasion is reduced, and grinding precision and efficiency are further guaranteed.

The invention discloses polishing equipment for machining a shaft rod for manufacturing an air compressor, and relates to the technical field of polishing equipment. Comprising a sliding block which is slidably connected with a moving assembly, a square plate is fixedly connected to the top of the sliding block, a circular block is rotatably connected to the outer surface of the square plate, a through hole is formed in the outer side of the end, away from the square plate, of the circular block, and a fixing part is slidably connected into the through hole. According to the polishing equipment for shaft rod machining for air compressor manufacturing, electric push rods work to push clamping blocks to move towards the shaft rod in the middle in through holes, so that the multiple clamping blocks clamp and fix the two ends of the shaft rod, the two ends are fixed to provide bidirectional constraint for a shaft, radial and axial displacement of the shaft during rotation or stress is reduced, and the polishing effect is improved. And meanwhile, various shaft workpieces can be flexibly adapted by adjusting parameters such as the distance between the two sliding blocks and the size of the chuck, and equipment does not need to be frequently replaced or special tools do not need to be customized.

A glazed assembly includes a monolithic or laminated glazing and a finishing joint and / or seal, the glass sheet of the monolithic glazing, or, respectively, an outer sheet of the laminated glazing, these being referred to as “considered glass sheet”, including an outer first face and a second face separated by an edge face including a first curved part connected to the first face, a second curved part connected to the second face, and a flat part connecting the first and second curved parts together, the intersection between the flat part and a curved part being made up, in a cross-section, of a single point, the seal or joint including a contact part opposite the edge face and including a flat face in contact with the flat part, and a first protuberance in the continuation of the flat face and covering the entire curved part connected to the outer face.

The invention belongs to the technical field of wafer processing, and particularly discloses an ultrasonic displacement vision cooperation wafer detection and edge grinding system. According to the invention, the control module coordinates the grinding mechanism, the wafer carrying table and the assembly integrated with displacement and visual detection, so that cooperative detection and edge grinding are realized. Specifically, the displacement detection module obtains the distance between the wafer and the grinding mechanism in real time, and an accurate physical reference is provided for compensation control; and the visual detection module captures continuous images during rotation of the wafer, so that the control module can extract micro texture features to identify the deviation state of the wafer. The combination of the two realizes the comprehensive real-time perception of the grinding working condition, and overcomes the limitation of insufficient perception. And finally, the control module fuses the displacement and offset information to generate an edge grinding instruction, and dynamically controls the grinding mechanism and the wafer carrying table to carry out linked rigid body transformation, so that real-time sensing information is directly converted into compensation action, and the problem of uneven grinding caused by insufficient dynamic compensation capability is effectively solved.

The invention discloses automatic stone grinding and dust removing equipment integrating negative pressure adsorption and filtration, and relates to the field of stone grinding, the automatic stone grinding and dust removing equipment comprises a cutting machine, a grinding mechanism and a machining supporting platform, the cutting machine is used for cutting stone, a stone outlet is formed in the cutting machine, and the cut stone is discharged from the stone outlet; the machining supporting platform is arranged at the bottom of the stone outlet and used for bearing the stone, and the grinding mechanism is used for grinding the stone on the machining supporting platform. When stone is placed on the machining supporting platform, the machining supporting platform is provided with a part of suction holes not covered by the stone, and when a negative pressure fan is started in the grinding process of the stone, the negative pressure fan can suck dust into the machining supporting platform, so that the dust falling effect is achieved, and the dust falling problem is solved from a cutting source.

The utility model relates to the technical field of devices for removing dust on grinding machines or polishing machines, in particular to a handheld dustproof grinding machine and a handheld dustproof grinding device. A handheld dustproof grinding device comprises a handheld dustproof grinding machine and a grinding head, the handheld dustproof grinding machine comprises a shell, a grinding inner cavity used for containing the grinding head and a dust collection channel are formed in the shell, and an outlet of the dust collection channel is formed in the shell and used for being connected with an external dust collector. A peripheral surrounding breathable dustproof part is arranged at a port of the grinding inner cavity, a driving device is further arranged on the shell, the power output end of the driving device extends into the grinding inner cavity to be used for assembling a grinding head, and an inlet of the dust collection channel communicates with the grinding inner cavity. And the inner wall, located in the polishing inner cavity, of the shell is used for forming a radial gap between the inner wall and the polishing head after the polishing head is assembled, so that dust is sucked to the dust suction channel through the radial gap, the suction effect is better, the good dustproof effect is achieved, and the polishing effect is effectively improved.

The invention discloses a combined type steel-wood bookshelf production polishing device, and relates to the field of polishing machining, the combined type steel-wood bookshelf production polishing device comprises a front conveying table, a transfer table and a rear conveying table which are arranged in sequence; a feeding conveying belt is arranged on the front conveying table, a bookshelf plate is placed on the feeding conveying belt, a first working groove is formed in the front conveying table, and two side grinding rollers and two surface grinding rollers corresponding to the bookshelf plate are sequentially arranged in the first working groove in the conveying direction of the bookshelf plate. A first feeding roller and a second feeding roller which are located on the two sides of the first working groove are arranged on the front conveying table. According to the combined type polishing equipment for steel-wood bookshelf production, through cooperation of the front conveying table, the transfer table, the rear conveying table and related structures arranged on the front conveying table, the transfer table and the rear conveying table, full polishing treatment can be conducted on all the surfaces of bookshelf plates in the bookshelf plate polishing process, and therefore the polishing efficiency of the bookshelf plates is effectively improved.

The invention discloses a nodular cast iron pipe machining device, and relates to the technical field of nodular cast iron pipe production, and the nodular cast iron pipe machining device is characterized in that an inner supporting mechanism is prevented from falling off due to the fact that the upper side and the lower side are not fixed due to placement of an iron pipe through a limiting rod and a rotating rod; the complexity and the labor intensity of manual operation are reduced through the self-adaptive inner supporting function, an operator only needs to conduct simple equipment operation and monitoring, the working difficulty and the labor intensity are reduced, the inner supporting plate is made to rotate through the driving disc, and therefore the iron pipe is made to rotate; the polishing mechanism polishes the outer circumferential face of the iron pipe from bottom to top through the reciprocating screw rod, the iron pipe is not fixed through the power gear, the rotating sleeve and the connecting rod after polishing is completed, the iron pipe is conveniently output, contact between an operator and equipment and the iron pipe in the polishing process is reduced, and the polishing efficiency is improved. And the safety accident risk caused by misoperation is reduced.

The invention relates to the technical field of welding platforms, in particular to a steel pipe beam welding operation platform which comprises a base fixedly connected with a controller and further comprises two deformation positioning structures symmetrically arranged on the base, and each deformation positioning structure comprises a guide pushing mechanism connected with the base. The guide pushing mechanism is connected with a displacement clamping assembly; and the positioning calibration structure is connected with the base and comprises a first active telescopic frame, the moving end of the first active telescopic frame is fixedly connected with a suspension frame, the suspension frame is connected with a double-face grinding part, and the suspension frame is connected with an end face touch sweeping mechanism. Through mutual cooperation of the deformation positioning structure and the positioning calibration structure, the steel pipe beams in different shapes are positioned and clamped, then end face positioning and position measuring are conducted on the steel pipe beams, end face correction is conducted on the steel pipe beams, and therefore the steel pipe beams can be accurately and mutually positioned and in butt joint, the quality of subsequent welding machining is improved, and the production efficiency is improved. And manpower is saved.

The invention discloses an alpine region track frog welding auxiliary device and an operation method, and belongs to the technical field of track welding, the alpine region track frog welding auxiliary device comprises a chassis and an electric push rod A mounted on the chassis, and further comprises a polishing mechanism, a positioning mechanism, a locking mechanism and a control system which are electrically connected with a controller mounted on the electric push rod A, and the alpine region track frog welding auxiliary device comprises a data acquisition module and a data processing module, the data acquisition module is used for acquiring grinding wheel state data and grinding state data; the grinding wheel state evaluation module adjusts the rotating speed of the grinding wheel; the polishing state evaluation module outputs a polishing state coefficient; the polishing pressure evaluation module is used for outputting a pressure coefficient and pressure adjustment information; the pressure regulation and control module is used for constructing a pressure target model according to the current polishing pressure information and the pressure coefficient, outputting target polishing pressure according to the pressure regulation information and regulating the polishing pressure to the target polishing pressure; according to the invention, the waist of the steel rail can be accurately polished before flash welding of the rail frog.

The invention discloses a steel fireproof door plate polishing device, which belongs to the technical field of fireproof door plate processing, and comprises a rack, rotating rollers uniformly and rotatably mounted along the length direction of the rack, and a housing mounted at one end of the top of the rack, conveying mechanisms are arranged at two ends in the housing, and second hydraulic cylinders are symmetrically and vertically mounted on two sides of the top in the housing. A reciprocating mechanism composed of a first shaft sleeve, a first spline shaft, a reciprocating lead screw, a second sliding block, a connecting rod and a first belt wheel assembly is arranged at the end of the grinding roller, in the process that the grinding motor is used for controlling the grinding roller to rotate, the grinding roller can be controlled to reciprocate in the axial direction, and axial movement and rotation are combined; a crossed net-shaped grinding track is formed, covering is more comprehensive, surface textures are more uniform, subsequent polishing procedures are reduced, spraying or assembling requirements are directly met, in addition, the grinding roller axially moves to enable dust to be distributed more dispersedly, the dust concentration of a working area is greatly reduced in cooperation with a negative pressure dust suction mechanism, and potential safety hazards are reduced.

The invention discloses grinding and polishing equipment for the inner wall of a pipe workpiece. The grinding and polishing equipment comprises a rack, a workpiece rotating and supporting mechanism, a grinding mechanism, a radial feeding mechanism, an axial moving mechanism, a workpiece stabilizing mechanism and an electric control system. The grinding assembly is a flexible grinding wheel formed by splicing a plurality of arc-shaped grinding pieces, a pneumatic motor drives the flexible grinding wheel to rotate at a high speed to serve as main cutting motion, constant-pressure contact control is achieved through a radial feeding mechanism, abrasion of the grinding wheel can be compensated in a self-adaptive mode through the control mode, and it is guaranteed that the grinding pressure is stable; therefore, the reference size of the workpiece is protected to the maximum extent while the defects of the inner wall are effectively removed, the problem of size out-of-tolerance caused by uneven pressure or abrasion in traditional rigid grinding is avoided, constant-pressure, efficient and high-quality grinding is guaranteed, and the grinding and polishing efficiency and quality of the inner wall of the pipe workpiece are effectively improved.

The invention provides a multi-station diamond grinding numerical control machine tool, and relates to the technical field of diamond grinding, the multi-station diamond grinding numerical control machine tool comprises a vertical plate, the surface of the vertical plate is fixedly connected with a bottom table, a working table, a top table, an air pump, a diamond detector and a wiping block in sequence from bottom to top, and the multi-station diamond grinding numerical control machine tool further comprises a plurality of linear sliding tables arranged between the top table and the working table in an annular array; dD direct-drive multi-axis mechanical arms are installed on the sliding table surfaces of the linear sliding tables, rotary grinding discs are arranged on the surfaces of the workbenches, liquid supply pipes are arranged above the rotary grinding discs, liquid outlet adjusting pieces are arranged in the liquid supply pipes, air return cylinders are arranged on the surfaces of the liquid supply pipes, and first restraint rings and second restraint rings are arranged on the surfaces of the workbenches. A filtering piece is arranged on the surface of the top table; according to the diamond grinding device, the air wall is formed above the rotary grinding disc, dust generated in the diamond grinding process and splashing grinding fluid or grinding agents can be effectively limited in one area, and therefore the device can be cleaned conveniently, and by-products can be collected and treated conveniently.