293results about How to "Improve grinding accuracy" patented technology

The invention discloses a polishing track planning method for an artificial metal skeleton, which realizes self-adaptive fine polishing on a complex surface through multi-mode perception fusion of vision and touch. The method comprises the steps that global point cloud data and local point cloud data are obtained through a large-view and high-precision line laser sensor, a to-be-polished area and the height difference are accurately calculated in combination with a relative pose matrix and an ICP algorithm, and a polishing track is generated through a greedy triangulation and slice construction algorithm. A least square method is adopted for smoothing a track contour line, a polishing path is optimized, and it is ensured that the track is smooth and stable; and in combination with real-time feedback adjustment of a six-dimensional force sensor, constant force control is achieved, and the problems of uneven pressure and surface damage in traditional grinding are solved. According to the scheme, the grinding precision, consistency and adaptability are remarkably improved, and the method is particularly suitable for high-requirement grinding of metal skeletons in complex forms. Compared with the prior art, the real-time dynamic optimization of the polishing track from visual and tactile data is realized.

The invention discloses a method and a system for controlling test lapping of a stamping die. The method comprises the following steps: scanning an actual molded surface of the stamping die to generate actual three-dimensional point cloud data; determining a difference value according to the actual three-dimensional point cloud data and the virtual three-dimensional point cloud data; determining a first to-be-repaired area according to the difference value and a preset tolerance range; simulating deformation conditions of the stamping part under different pressures based on a preset virtual combined simulation model, and predicting a contact area and pressure distribution of the stamping die and the stamping part in an actual stamping process; determining a second to-be-repaired area according to the contact area and the pressure distribution; determining a to-be-polished area according to the first to-be-repaired area and the second to-be-repaired area; a polishing path is generated according to the to-be-polished area through a path planning algorithm; and grinding equipment is controlled to grind the stamping die according to the grinding path. Therefore, the efficiency of the whole test lapping process is improved.

The utility model discloses an auxiliary device for steel structure section bar processing, which belongs to the technical field of steel section bar processing and comprises a machine base, the top of the machine base is rotatably connected with a bearing mechanism for placing a steel structure section bar, and a moving mechanism is arranged in an inner cavity of the machine base in a limited sliding mode. The two ends of the top of the moving mechanism are provided with polishing mechanisms used for polishing the steel structure profile. By designing the novel burr polishing device composed of the machine base, the bearing mechanism, the polishing mechanism, the moving mechanism and other modules, two cutting faces of a steel structure profile can be polished at the same time in the bearing rotary disc, and the profile can completely cover and polish the outer walls and the edges of wing plates and webs of the cutting faces through the polishing roller set and the polishing disc. And after polishing is finished, the direction of the bearing rotating disc is rapidly adjusted through a fourth motor, surface changing polishing operation is conducted, the polishing precision is improved, and the polishing efficiency is improved.

The invention relates to the technical field of mechanical workpiece positioning, and discloses a positioning device for grinding machining of a guide post, which comprises a sliding seat, an anti-cutting part arranged at the top of the sliding seat and used for self-adapting to the grinding position change of a grinding wheel to prevent structural wear, and a clamping part mounted on the anti-cutting part and used for clamping the guide post. The clamping part can adapt to the stress degrees of the guide columns under different parameters for effective clamping, an anti-skid piece on a rotating shaft is matched with a second pressure sensor, the clamping effect is determined according to the stress parameters of the guide columns of different sizes and materials, damage to the guide columns due to loose clamping or too tight clamping is avoided, and the service life of the guide columns is prolonged. The anti-disengaging part conducts limiting compensation on the clamped guide column and prevents the guide column from disengaging, the metal disc and the magnetic disc are attracted, the bent piece on the supporting arm makes contact with the end of the guide column, the distance between the bent piece and the guide column can be adjusted by rotating the threaded rod so that the guide column can be matched with different calibers, and the guide column is limited in the grinding process; and the guide pillar is prevented from shaking, loosening or falling off due to grinding wheel pressure and high-speed rotating centrifugal force.

The invention discloses a burr removing device for badminton racket processing, and relates to the technical field of burr removing devices, and the burr removing device comprises a composite mechanism. According to the burr removing device for badminton racket processing, through the design of a composite mechanism, a racket is placed on the fixing mechanism, the outer side of the racket is clamped through the fixing mechanism, so that the effect of fixing an object is achieved, burr removing operation is facilitated, a racket rod is placed in the stabilizing mechanism, and the stabilizing mechanism fixes the racket rod; the polishing mechanism is controlled to ascend and descend through the electric push rod so that the racket can be attached conveniently, the edge removing quality can be improved, the motor drives the center rotating shaft to rotate so as to drive the polishing mechanism to rotate, and therefore the effect of polishing the inner ring of the racket is achieved. And the metal chippings fall into the collecting box from the central groove, so that the effect of collecting the chippings is achieved, impurities are convenient to clean, and the deburring effect is prevented from being influenced.

The invention belongs to the technical field of grinding, and particularly relates to a metallic bond diamond grinding wheel, a preparation method of the metallic bond diamond grinding wheel and a thinning method. The diamond grinding block comprises a porous diamond grinding material, a metal binding agent and a pore forming agent. The porous diamond abrasive is prepared by carrying out a thermochemical corrosion method on diamond; the metal bonding agent comprises copper-tin alloy powder, graphite powder, nano Al2O3, cadmium powder and polyimide resin. Compared with the prior art, the problem that in the prior art, the thinning technological parameters of the grinding wheel are not suitable for the novel grinding wheel with the fine granularity is solved. According to the scheme, the novel grinding wheel with the fine granularity is provided, the thinning parameters are researched on the basis of the novel grinding wheel, and therefore better machining efficiency and silicon wafer surface quality can be obtained under the grinding wheel and the thinning process parameters.

The invention discloses high-precision grinding equipment for a three-eccentric center butterfly valve sealing pair, and belongs to the technical field of grinding equipment, the high-precision grinding equipment comprises a machine body, a machine base, a rotating base, a cross beam, a grinding head sliding base, a workbench, a dynamic and static pressure grinding head electronic shaft, an X-axis moving assembly, a Z-axis moving assembly and a swing angle driving mechanism, the X-axis moving assembly is used for driving the transverse sliding base to move, and the Z-axis moving assembly is used for driving the Z-axis moving assembly to move; the swing angle driving mechanism is used for driving the rotating base to rotate relative to the machine base. Through the arrangement of the swing angle driving mechanism, the X-axis moving assembly and the Z-axis moving assembly, the grinding wheel always moves on the grinding sealing face of a workpiece in the grinding process, that is, along with grinding, the ideal smoothness of the grinding face of the sealing pair reaches Ra0.2 or below, the roundness of the grinding inner circle and the grinding outer circle reaches 0.003 mm, the machining time is fully utilized, the grinding efficiency is improved, grinding stress is uniform, and the service life of the grinding wheel is prolonged. The grinding precision is improved, the universality and the sealing performance of the sealing pair of the three-eccentric butterfly valve can be guaranteed, and 100% exchange of the sealing pair is achieved.

The invention relates to the technical field of automobile part polishing machining, in particular to surface treatment equipment for automobile piston production, which comprises a conveyor, and placing seats are fixed at the top end of the conveyor at equal intervals. When the device is used, through the arrangement of the conveyor, the placement base and the placement hole in the top end of the placement base, pistons can be stably and intermittently conveyed, and the conveying and grinding efficiency is improved; meanwhile, during grinding, an air cylinder drives a limiting disc, a plurality of limiting rods arranged at the bottom end of the limiting disc in an equal-angle surrounding mode and a grinding block to synchronously descend to be close to a piston on a placing base at the bottom end, and then telescopic control over an electric telescopic rod is matched; a plurality of limiting rods and grinding blocks at the bottom end of the limiting disc synchronously move back to be close to the surface of the groove outside the piston, then the driving motor drives the limiting disc and the limiting rods and the grinding blocks arranged at the bottom end of the limiting disc in an equal-angle surrounding mode to synchronously rotate, and therefore grinding of the groove in the surface of the piston is completed, and the overall grinding precision is high; multi-groove synchronous grinding is achieved, and the grinding efficiency is improved.

The invention discloses a full-static-pressure ultra-precise double-head spindle, which relates to the technical field of machine tool spindles and comprises a mandrel, a shaft sleeve is fixedly connected to the outer surface of the mandrel, a spindle equipment compartment is rotatably connected to the outer surface of the shaft sleeve, a synchronous pulley is fixedly connected to one side of the outer surface of the shaft sleeve, and a transmission assembly is in transmission connection to the synchronous pulley. The synchronous belt wheel is sleeved with a belt cover, the belt cover is fixedly connected into the main shaft equipment compartment body, and a transmission assembly looseness abnormity early warning mechanism is arranged in the belt cover and can automatically trigger an alarm to remind workers when the transmission assembly is loosened. The situation that the core shaft breaks down due to the fact that the transmission assembly falls off and is broken can be reduced, the maintenance cost of the core shaft is reduced, the service life of the core shaft is prolonged, the situation that vibration and noise are generated when the core shaft works under the abnormal condition of the transmission assembly can be avoided, the stability of the core shaft in the operation process is guaranteed, and the service life of the core shaft is prolonged. Therefore, the product grinding precision and quality of the mandrel are improved.

The invention discloses an automobile part grinding control system, which relates to the technical field of automobile part grinding control, and ensures that a grinding tool always keeps an optimal focal length and an accurate position in an operation process by accurately controlling a first focusing instruction, a first translation instruction and a first rotation instruction. A strain sensor is introduced to monitor the deformation of the workpiece in real time, and the deformation can be found in time and compensated in real time in the grinding process. The system can optimize temperature control management for different workpiece materials by considering heat conductivity coefficients k and heat conduction factors Rczz of different materials. Multiple factors of stress distribution, heat conduction, cooling efficiency and surface smoothness are considered by integrating the grinding quality index Mzqs, the machining quality grade is generated after comprehensive evaluation is provided for the grinding quality, parameters including the grinding depth, the workpiece feeding speed and the cooling system are adjusted according to the grade result, and therefore the machining quality of the final workpiece is improved.

The invention discloses an optical crystal component plane polishing device and a polishing process thereof, and relates to the field of optical component machining, the optical crystal component plane polishing device comprises a polishing equipment body and a swing arm, the upper surface of the swing arm is fixedly connected with a fixing frame, and an adjusting assembly is fixedly installed on the inner wall of the top end of the fixing frame; a liquid discharging assembly is installed at the end, away from the swing arm, of the adjusting assembly through threads. An electric push rod is started firstly, a lifting groove plate is used for driving an inserting rod, a lifting rod, a threaded rod and a pressing block to ascend, the height of the pressing block is adjusted, then the pressure intensity of a machined part is adjusted rapidly, manpower is omitted, and the grinding efficiency is improved; the liquid feeding device guides prepared polishing liquid into the guide pipe through the hose, then the polishing liquid is immersed into the polishing face of the machined part from the guide pipe and the multiple sets of penetrating holes along the liquid discharging groove, rapid liquid feeding of the polishing face of the machined part is achieved, the polishing degree of the polishing face can be adjusted in time, and the polishing efficiency and precision are improved.

The utility model discloses an aluminum alloy material part deburring device which comprises a machine body (6), a polishing executing mechanism is arranged above the machine body (6), guide platforms (63) are fixedly arranged on the front side and the rear side of the machine body (6) respectively, roll shafts (61) which are arranged at equal intervals are connected into the machine body (6) in a rotating fit mode, and placing jigs (8) are placed on the roll shafts (61). A guide wheel frame (66) extending front and back is fixedly arranged in the machine body (6) on the left side, a plurality of sets of rolling wheels (67) arranged at equal intervals are arranged in the guide wheel frame (66), and a telescopic propelling mechanism is arranged in the machine body (6) on the right side. According to the device, the detachable placement jig 8 is arranged, so that the assembled placement jig 8 can be conveniently and flexibly replaced, and the production efficiency is improved; polishing machining in different directions can be met by adjusting the position of the polishing wheel (76), and the production efficiency is further improved.

The utility model discloses a bearing ring polishing device which comprises a supporting mechanism, a clamping mechanism and a polishing mechanism, the supporting mechanism comprises a supporting table and a first rotation driving piece, the supporting table is used for placing a bearing ring, and an output shaft of the first rotation driving piece is fixedly connected with the supporting table; the clamping mechanism comprises a plurality of clamping pieces arranged in the annular direction and a driving assembly, and the driving assembly is connected with the clamping pieces and used for driving the clamping pieces to be folded or separated. The bearing ring grinding device has the advantages that in the process of grinding the outer side wall of a bearing ring, the bearing ring can be clamped and positioned through the clamping pieces arranged in the annular direction, the coaxiality of the bearing ring in the grinding process is guaranteed, the grinding precision of the bearing ring is improved, and the grinding efficiency of the bearing ring is improved. And the grinding device can clamp, position and grind the bearing ring within a certain diameter range, and has high applicability.

The utility model discloses a neodymium-iron-boron magnet four-station angle-variable chamfering machine which comprises a jig used for loading and fixing a neodymium-iron-boron magnet to be chamfered and four chamfering assemblies arranged on the periphery of the jig, and each chamfering assembly is provided with a cylindrical grinding head used for chamfering the neodymium-iron-boron magnet. According to the chamfering machine, the feed driving mechanism is arranged and comprises the bottom plate, the sliding groove, the upper sliding base and the air cylinder, when the chamfering machine is used, the air cylinder is started, the upper sliding base drives the grinding head to move in the sliding groove of the bottom plate in the linear direction, the grinding precision of the chamfering machine is improved, the driving motor is started, the driving gear is made to rotate, and the grinding efficiency is improved. And a second telescopic rod is started, so that a locking pin is inserted into a locking hole, the lower sliding seat is fixed, a second motor is started to adjust the height of a movable plate, and the chamfering angle can be adjusted conveniently.

The invention relates to the technical field of valve body polishing, and particularly discloses an adjusting valve polishing device and a using method thereof.The adjusting valve polishing device comprises a valve body and a clamping part capable of clamping the valve body, a center shaft which is coaxial with the circle center of an inner hole of a valve seat and can rotate is arranged in the valve body in a penetrating mode, and two sets of polishing parts capable of sliding and adjusting along the center shaft are arranged on the outer wall of the center shaft; the polishing part comprises a plurality of polishing pieces capable of adjusting the included angle between the polishing pieces and the center shaft, and when the polishing pieces and the center shaft rotate together, a polishing conical surface attached to the inner wall of the valve seat can be formed. Two groups of valve seats are polished through the two groups of polishing parts at the same time, so that the double-seat valve does not need to be disassembled and reassembled in the polishing process, the deviation of conical surface angles of inner holes of the two groups of valve seats due to errors caused by repositioning is avoided, and the polishing allowance of a sealing surface of a certain valve seat is increased or reduced; and therefore, the control precision of the device on the grinding allowance is improved, and the sealing performance of the double-seat valve is improved.

The invention relates to the technical field of aluminum part grinding, and discloses an aluminum casting burr grinding machine which comprises a base, a material clamping mechanism and a material displacement driving mechanism, and a grinding assembly is arranged in the middle of the side edge of the base. The material clamping mechanism comprises a first vertical plate arranged at the corner of the base, a guide sliding rod is arranged at the end of the first vertical plate, a transverse moving sliding block is slidably connected to the middle of the guide sliding rod, and a driven rotating shaft is rotatably connected to the side, close to the center of the base, of the transverse moving sliding block; the material displacement driving mechanism comprises a side plate arranged on the side edge of the base, a transverse moving sliding rod is arranged on the side plate, a sliding seat is slidably connected to the middle of the transverse moving sliding rod, a lifting rod is slidably connected to the side face of the sliding seat, and lifting plates are connected to the two ends of the lifting rod. Through cooperation of the rack and the driven gear and cooperation of the clamping groove plate and the T-shaped clamping groove, a to-be-machined aluminum part can be rotated and transversely moved, and the grinding machine can be used for grinding the cambered surface and the plane.

The utility model discloses an edge polishing device for glass processing, which comprises a mounting groove, the mounting groove is arranged on a processing table, a moving plate is arranged in the mounting groove, a storage plate is arranged above the moving plate, and an electric push rod is arranged on one side of the processing table; the grinding assembly is arranged above one side of the machining table, a first sliding groove is formed in one end of the machining table, a first sliding block is arranged in the first sliding groove and fixedly connected with the grinding assembly, a first motor is arranged on one side of one end of the machining table, a ball screw is arranged in the first sliding groove, and a second motor is arranged on one side of the other end of the machining table. According to the grinding device, glass is horizontally adsorbed and fixed through vacuum adsorption, the grinding stability of the glass can be ensured, the fixed glass can horizontally rotate to change the placing direction, the edges of multiple parts of the glass can be conveniently ground by the grinding mechanism, the placing angle of the glass does not need to be manually changed, and the grinding efficiency is improved. The glass edge efficiency is improved.

The invention provides a vertical grinding machine for quartz rod machining, and relates to the field of quartz rod grinding equipment. A workbench is fixedly installed at the upper end of the box body, and a supporting shell is installed at the edge of the upper end face of the workbench. A rotating part is arranged in the middle of the upper end face of the workbench, and a clamping and positioning mechanism is installed at the top of the rotating part. Through cooperation of a circular driving block, a sliding rod, a circular jacking block, a circular connecting plate and a locking inserting rod, a driving screw rod, a nut, an L-shaped driving block and a positioning clamping block can achieve an effective anti-loosening effect, and therefore the grinding precision of a quartz rod is improved; the problems that in the quartz rod grinding process of an existing vertical grinding machine in the market, although the quartz rod can be positioned through a clamping and positioning mechanism, the quartz rod is prone to being stressed when being ground, so that a clamping block on the clamping and positioning mechanism is loosened, and the grinding precision of the quartz rod is affected are solved.

The invention provides a curved surface polishing device and a polishing method thereof.The curved surface polishing device is provided with a first platform and a second platform, the first platform and the second platform are oppositely arranged, and the first platform and the second platform are fixedly connected based on at least three hinge assemblies; a grinding wheel driving part and an external controller are arranged on the surface, close to the first platform, of the second platform, the external controller is arranged above the grinding wheel driving part, at least three laser induction sensors and a grinding wheel are arranged on the surface, away from the first platform, of the second platform, and the laser induction sensors are arranged around the grinding wheel. Further, the ground curved surface can be sensed in real time based on the dot matrix laser induction sensor, the controller controls stretching and retracting of the hinge assembly in an online closed-loop mode, self-adaptive adjustment of the curved surface contact angle is guaranteed, and the problems that machining is difficult and quality is poor for different positions and different curvatures of the curved surface in a traditional grinding mode are solved; and meanwhile, universality of multiple machining occasions is achieved, and the machining precision is improved.

The invention relates to the technical field of plunger pump part machining, in particular to a stator ring inner runway machining method. The stator ring inner runway machining method comprises the steps that based on initial positioning of a stator ring semi-finished product and a grinding wheel, the grinding wheel is controlled to conduct grinding machining on the inner circumferential wall of the stator ring semi-finished product along a first path. And controlling the grinding wheel to grind the inner circumferential wall of the stator ring semi-finished product along the second path based on completion of the grinding wheel along the first path. Wherein the stator ring semi-finished product is sequentially provided with a first separation point, a first inflection point, a second separation point, a second inflection point and a target separation point. An inner ring track of the stator ring semi-finished product between the first separation point and the second separation point is a first track, and the first path covers the first track. The inner ring track of the stator ring semi-finished product between the second separation point and the target separation point is a second track, and the second path covers the second track. Therefore, the problem that the grinding difficulty is high due to the fact that the inner runway track of the stator ring is complex is solved.

The invention discloses a spiral groove grinding wheel of an asymmetric trapezoidal turbulent flow structure and a preparation method, the spiral groove grinding wheel comprises a grinding wheel body, a spiral groove is formed in the grinding surface of the grinding wheel body, and the section of the spiral groove is rectangular; a turbulent flow structure is arranged in the spiral groove, the cross section of the turbulent flow structure is in an asymmetric trapezoid shape, and the bottom edge of the turbulent flow structure is in an arc shape and completely attached to the bottom face of the spiral groove. The turbulent flow structures are distributed at equal intervals in the spiral groove by taking the spiral groove as a guide; the asymmetric trapezoidal turbulent flow structure is additionally arranged on the surface of the spiral groove grinding wheel, the flow characteristic of grinding fluid can be improved, the absorption effect of the grinding fluid on the surface of the grinding wheel is improved, the effective flow of a grinding arc area in the grinding process is increased, and then grinding heat exchange is further enhanced.

The invention provides a body-in-white welding seam polishing system and method. The system comprises a rack, a polishing device and a welding seam detection device, wherein the polishing device and the welding seam detection device are mounted on the rack; wherein the welding seam detection device is used for detecting a body reference surface of a target area of a body in white and a to-be-polished welding seam so as to obtain the position and height of the to-be-polished welding seam; the grinding amount of the weld joint is obtained based on the height of the to-be-ground weld joint and the target height; the grinding device comprises a mechanical arm and a grinding head, the grinding head is installed on the mechanical arm, and the grinding device is used for conducting primary grinding on the to-be-ground weld joint based on the position and the grinding amount of the to-be-ground weld joint; the weld joint detection device is further used for detecting the weld joint to be ground after the weld joint to be ground is ground for the first time till the weld joint to be ground reaches the target height. An existing manual grinding mode can be replaced, the grinding process is guided through welding seam measurement, the grinding result is detected through welding seam detection, errors in manual operation are reduced, and the quality and consistency of the welding seam surface are improved.

The utility model discloses a welded pipeline machining device which comprises a toothed rail ring assembly, the toothed rail ring assembly is composed of two semicircular toothed rails, a sliding block device is arranged on the toothed rail ring assembly and comprises two rotating gears, and the two sides of each rotating gear are connected with a first connecting block and a first mounting frame correspondingly; the two ends of the first connecting block are rotationally connected with the two rotating gears correspondingly, the bottom end of the first connecting block is rotationally connected with a first driven wheel, the other side of each rotating gear is rotationally connected with the first mounting frame, the bottom end of the first mounting frame is rotationally connected with a second driven wheel, the side face of the first connecting block is connected with a supporting rod, and a cutting and grinding device is mounted at the bottom end of the supporting rod. A first telescopic rod is arranged on the inner ring of the semicircular toothed rail, a motor is mounted on the first mounting frame, and the output end of the motor is in transmission connection with the rotating gear. Compared with an existing pipeline machining device, the pipeline does not need to be disassembled for grinding machining, and compared with the mode that a cutting and grinding device is manually held to grind a welding seam, the labor cost can be saved, and the grinding efficiency can be improved.

The invention discloses a Bluetooth headset shell machining device, and relates to the technical field of Bluetooth headset production and machining, a clamping and stabilizing mechanism comprises a first motor fixedly connected to the inner wall of a fixing groove, a limiting rod and a rotating shaft rotationally connected to the inner wall of the fixing groove, and the surface of an output shaft of the first motor is fixedly connected with a pinion; the surface of the rotating shaft is fixedly connected with a large gear and a rotating strip, the rotating strip is rotationally connected with two connecting arms, the front faces of the two connecting arms are fixedly connected with connecting shafts, and the front ends of the two connecting shafts are fixedly connected with sliding connection strips. The two sides of the shell are clamped, so that the shell is kept stable and cannot move or shake in the grinding process, the grinding precision is improved, meanwhile, the spring rods can provide certain buffering force, part of vibration and impact energy can be absorbed, and damage to the shell caused by clamping is reduced.

The utility model relates to the technical field of roll collar machining, and provides an intelligent roll collar grinding machine which comprises a roll collar grinding machine body, a headstock servo motor is arranged on one side of the roll collar grinding machine body, the output end of the headstock servo motor is connected with a first motor belt pulley, and a belt pulley is arranged below the first motor belt pulley. The first motor belt pulley and the belt pulley are in transmission connection through a tensioned synchronous belt, one end of the belt pulley is connected with a headstock main shaft, the other end of the headstock main shaft is sequentially provided with a first double-row cylindrical roller bearing, a thrust ball bearing and a second double-row cylindrical roller bearing, and a main shaft motor is arranged on the other side of the roll collar grinding machine; the output end of the spindle motor is connected with a second motor belt pulley, and the bottom of the second motor belt pulley is in transmission connection with a grinding carriage spindle through a joined triangular belt. The grinding efficiency and precision of the grinding wheel are effectively improved, the stability of equipment and the working efficiency of an operator are improved, and the development of intelligent and digital manufacturing is further promoted.

The invention belongs to the technical field of PE water supply pipe grinding, and particularly relates to a pipe end opening grinding device based on PE water supply pipe production, the pipe end opening grinding device comprises a workbench, a fixing assembly, a rotating assembly, a grinding assembly and a waste collecting assembly, the workbench is provided with a plurality of weight reducing grooves, the fixing assembly comprises two supporting plates fixed to the workbench, and the rotating assembly comprises a rotating shaft; a hollow column is rotatably connected to the supporting plate, a clamping component is arranged in the hollow column, the grinding assembly comprises two guide rails fixed to the two ends of the workbench, two sliding blocks are slidably connected to the guide rails, reciprocating screw rods are fixed to the sliding blocks, screw caps are in threaded connection with the reciprocating screw rods, sleeves are fixed to the screw caps, and the clamping component is arranged in the sleeve. The two sleeves are sleeved with annular abrasive belts. The PE pipe is polished through the annular abrasive belt, the polishing speed is increased, the two ends of the PE pipe are polished at the same time, the polishing speed is further increased, and therefore the construction efficiency of the water supply pipe is improved.

The invention discloses a brake pad multi-angle grinding lathe and belongs to the technical field of brake pad grinding lathes, the brake pad multi-angle grinding lathe comprises a lathe bottom plate, a rotating part, a fixing part, a grinding part and a cooling part, a protective cover is fixedly connected to the upper surface of the lathe bottom plate, a door plate is hinged to the outer surface of the protective cover through a hinge, and the rotating part is arranged in the protective cover; two electromagnets are started through a control panel to generate a positive magnetic field, meanwhile, a magnetic sliding block generates negative magnetism, the magnetic sliding block is promoted to slide in a sliding rail, a grinding block is made to abut against a brake pad body, meanwhile, a driving motor and a rotating rod are matched with each other to drive the brake pad body to rotate, and therefore the brake pad body is ground; when the temperature sensor detects that the temperature exceeds a preset value, the control panel drives the electromagnet to generate a reverse electrode, the magnetic sliding block is promoted to drive the grinding block to move, a gap is generated between the grinding block and the brake pad body, and friction and heat generation are reduced.

The invention relates to the technical field of steel pipe grinding, in particular to a hot-dip galvanized steel pipe wall galvanized layer thickness adjusting system which comprises a bottom plate, electric sliding rails, a bidirectional electric guide rail, a grinding machine and the like, the two electric sliding rails are installed at the top of the bottom plate, and the bidirectional electric guide rail is installed between sliding blocks of the two electric sliding rails; and grinding machines for grinding the two ends of the steel pipe are mounted at the bottoms of two sliding blocks of the two-way electric guide rail. Steel pipes can be conveyed rightwards through the feeding conveyor and conveyed into the V-shaped groove for loading, zinc coatings at the two ends of the steel pipes can be ground through the grinding machine, after grinding is completed, the conveying frame continues to rotate, and the ground steel pipes can gradually get close to the discharging conveyor and roll to the discharging conveyor for unloading; feeding and discharging are automatically carried out, the production continuity is higher, and therefore the production efficiency can be improved, and the continuous and efficient production requirement is met.

This utility model relates to the technical field of wooden packaging box processing equipment, and particularly to a wooden packaging box polishing and sanding device, comprising a box body, a transparent observation door panel hinged to the front end of the box body, a displacement device fixedly connected to the upper right end of the box body, and a pushing component fixedly connected to the lower rear end of the box body; the displacement device includes a drive motor, a first electric push rod, and a second electric push rod, with a displacement plate movably connected to the outer surface of the screw; the drive motor is fixedly installed on the upper right end of the box body, and the second electric push rod is fixedly installed on the lower middle part of the fixed plate. This wooden packaging box polishing and sanding device, by setting a clamping device, can stably clamp packaging boxes of different specifications, avoiding shaking and displacement during sanding to improve sanding accuracy and quality; by setting a pushing component, it achieves automatic cleaning of waste chips, reducing waste chip interference and improving work efficiency.

The utility model provides a mobile phone shell repairing device which comprises a bottom plate and a mobile phone shell tray arranged on the bottom plate, and further comprises at least two clamping parts oppositely arranged on the side edges of a mobile phone shell and used for clamping and positioning the mobile phone shell. The sliding part comprises a moving frame which is arranged on the clamping part and slides relative to the clamping part, one end of a C-shaped support is connected to the moving frame in a sliding mode, a sliding block is arranged on the inner side of the C-shaped support in an up-down sliding mode, a supporting frame is arranged on the outer side of the sliding block, and a positioning hole used for containing a polishing gun is formed in the bottom of the supporting frame; and the extrusion spring is arranged between the bottom of the supporting frame and the lower part of the C-shaped bracket. The grinding precision and the clamping stability can be improved.