63results about How to "Improve grinding accuracy" patented technology

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 invention relates to the technical field of machining and positioning tool equipment, in particular to a grinding and fixing chuck for a direct-drive electric spindle, which comprises a three-jaw chuck, a supporting ring is sleeved on the side surface of the three-jaw chuck, the three-jaw chuck is rotatably connected with the supporting ring through an annular slide rail, and an electric guide rail is arranged below the middle of the supporting ring. An annular auxiliary chuck is arranged in front of the three-jaw chuck, and the bottom of the auxiliary chuck is in sliding connection with the electric guide rail through a sliding block. According to the grinding fixing chuck for the direct-drive electric spindle, through double fixing and dynamic supporting of the auxiliary chuck and the three-jaw chuck, vibration and center line position deviation of the electric spindle in the grinding process are effectively restrained, and the grinding precision and quality are improved; due to the linkage design of the scrap removing plate and the auxiliary supporting roller, grinding scraps and dust on the surface of the main shaft can be automatically removed in the supporting process, the grinding safety is improved, the grinding quality is further improved, and the workload is reduced for follow-up motorized main shaft cleaning work.

The utility model relates to the related technical field of wooden furniture processing equipment, in particular to a wooden furniture surface polishing auxiliary tool which comprises a workbench, a supporting rod is fixedly connected to the upper surface of the workbench, a top plate is fixedly connected to the upper surface of the supporting rod, a clamping mechanism is arranged on the lower surface of the top plate, and the clamping mechanism is arranged on the lower surface of the workbench. An extension mechanism is arranged on the surface of one side of the clamping plate, and a fixing mechanism is arranged on the surface of the inner side of the extension mechanism. According to the auxiliary tool for grinding the surface of the wooden furniture, through the design of the extension mechanism and the fixing mechanism, the clamping length can be flexibly adjusted, the problem that large furniture is insufficient in clamping is solved, an extension block slides along a clamping plate and is matched with multi-stage locking of a clamping block and a clamping groove, it is ensured that any position is stably fixed, friction force is enhanced through a rubber strip, and furniture displacement is prevented; and a symmetrical extension structure and a guide limiting design are adopted, so that the extension process is stable and free of deviation, and the clamping stability and the grinding precision are remarkably improved.

The lining polishing equipment comprises a polishing robot and at least one set of fixing devices, the polishing robot comprises a robot and a polishing tool, and the polishing tool is installed at the end of the robot through a connecting piece and is suitable for polishing a workpiece to be polished; the fixing device comprises a fixing base and a pair of rolling shafts arranged in parallel, the rolling shafts are installed on the fixing base and suitable for containing the to-be-polished workpiece, and the rolling shafts are connected with a driving motor and can be driven by the driving motor to rotate; according to the lining polishing equipment based on the structure, manual polishing operation is replaced, the polishing precision is guaranteed, the polishing efficiency is improved, and large labor intensity and potential health hazards of operators are avoided.

The utility model discloses a U-shaped iron core end full-automatic polishing belt sander which comprises a workbench arranged on a machine frame, a control table and a circulating abrasive belt are arranged on the machine frame, and the circulating abrasive belt is wound between abrasive belt driving mechanisms. The U-shaped iron core feeding mechanism and the U-shaped iron core discharging mechanism are arranged on the two sides of the circulating abrasive belt. The contact switch array can detect the grinding effect of the U-shaped iron core, the circulating abrasive belt is divided into a plurality of working areas, an optical sensor and / or a camera capable of detecting the use degree of the abrasive belt in the working area in real time are / is arranged at the corresponding position of each working area, and when the use degree exceeds a threshold value, the next working area is automatically replaced for grinding. The replacement frequency of the abrasive belt can be effectively reduced, and the utilization efficiency of the abrasive belt is improved. All the structures are tightly matched, and full automation of the grinding process can be achieved.

The utility model relates to the technical field of wooden door production, in particular to thickened wooden door production equipment which comprises a stamping table, an extension frame fixedly installed on the surface of one side of the stamping table, a cutter movably embedded in the lower surface of the stamping table, and two bidirectional lead screw motors fixedly installed in the extension frame and the stamping table respectively. And the moving assembly is fixedly installed in the stamping table, the grinding assembly is arranged above a two-way lead screw motor, the grinding assembly comprises two second fixing frames, and second motors are fixedly installed on the upper surfaces of the second fixing frames. According to the wood board processing device, wood board raw materials are placed on the surface of the stamping table, the pressing plate moves downwards for pressing, the wood board moves towards one side through rotation of the rolling wheels, the two ends of the wood board are cut in the moving process, then the two sides of the wood board are polished through the polishing wheels, and therefore automatic discharging is achieved, and the wood board is directly processed in the discharging process; and subsequent procedure treatment is replaced, and the wood board treatment efficiency is improved.

The utility model relates to a knife sharpening auxiliary positioning tool and a knife sharpener with the knife sharpening auxiliary positioning tool in the technical field of garden blade machining, the knife sharpening auxiliary positioning tool comprises a knife sharpener main body, a locking hole capable of fixing a knife sharpening head is formed in the knife sharpener main body, and an angle adjusting mechanism capable of adjusting the angle of a workpiece is arranged on the knife sharpener main body; the angle adjusting mechanism comprises an adjusting pressing plate, a rotating shaft and an adjusting knob, the rotating shaft is rotationally connected to one end of the knife sharpener body, the adjusting pressing plate is fixed to the rotating shaft, one side of the adjusting pressing plate is provided with a positioning face capable of being attached to the end face of a grinding workpiece, and the adjusting knob is fixed to one end of the rotating shaft and can drive the adjusting pressing plate to rotate through rotation. According to the knife sharpening auxiliary positioning tool and the knife sharpener, through the specially designed angle adjusting mechanism, the auxiliary platform is used for positioning the blade, the angle is adjusted, the blade can be easily ground to the needed effect, the structure is simple, operation is convenient, and the grinding precision and efficiency of the blade are greatly improved.

The utility model discloses a crushing device for graded grinding, which belongs to the field of grinding devices and comprises a base station. A multi-stage grinding mechanism used for grinding materials is installed on the base table. The multi-stage grinding mechanism is composed of a head-section grinding roller at the left end, a tail-section grinding roller at the right end and a plurality of middle-section grinding rollers located between the head-section grinding roller and the tail-section grinding roller. The right end of the head-section grinding roller is detachably connected with the left ends of the middle-section grinding rollers through roller connecting assemblies, the left end of the tail-section grinding roller is detachably connected with the right ends of the middle-section grinding rollers through roller connecting assemblies, and the adjacent middle-section grinding rollers are detachably connected through roller connecting assemblies; by means of the mode, the grinding frequency can be adjusted according to the required fineness of the materials, the grinding accuracy is improved, and the corresponding energy consumption can be reduced.

The invention discloses a numerical control machine tool machining cutter grinding and polishing device which comprises a base, in the using process of the numerical control machine tool machining cutter grinding and polishing device, two clamping plates are driven by a two-way screw to move relatively, and cutters of different specifications can be rapidly clamped in cooperation with guiding of a limiting rod and an anti-skid rubber pad, so that displacement during grinding is avoided, and the grinding precision is improved; the lifting assembly, the pushing air cylinder and the transverse moving assembly achieve movement of the grinding wheel in a three-dimensional space, the angle adjusting assembly accurately controls the grinding angle through worm and gear transmission, and the grinding requirements of different parts of the cutter are met. The guide rod guarantees stable movement of the transverse moving assembly, the grinding motor drives the grinding wheel to rotate at a high speed, efficient and uniform grinding and polishing of the cutter are achieved by combining the synergistic effect of all adjusting mechanisms, and the machining quality is improved.

The utility model discloses a kind of ceramic suction disc fine grinding mechanism, belong to ceramic suction disc processing field.A kind of ceramic suction disc fine grinding mechanism, including frame, the upper surface of frame is centrally provided with polishing table, and polishing table both ends are symmetrically provided with conveyer belt, the upper surface of frame and located the both sides of conveyer belt are equipped with truss, slidingly connected with connecting piece between truss, the perpendicular intersection of the median line of polishing table and the sliding path of connecting piece, polishing head and second cylinder are installed on connecting piece, and the end of second cylinder is connected with suction disc;The utility model can flexibly control polishing head position by the connecting piece slidingly connected between truss, the perpendicular intersection of the median line of polishing table and the sliding path of connecting piece, can accurately polish ceramic suction disc on polishing table in all directions, dust pan is set on frame, effectively collect the dust generated by polishing, keep working environment clean, conducive to long-term stable operation of equipment and operator health.

This utility model discloses a deburring device for shoe soles in shoe processing, including a slide rail and a limiting platform. The limiting platform is inserted into the slide rail, and a limiting mechanism is also included. The limiting mechanism includes a bottom slide bar, a side slide bar, a side slide groove, a downward groove, a tail groove, an L-shaped support plate, an electric push rod, and an inclined pressure block. By improving the slide rail and limiting platform of the existing patented shoe sole deburring device and adding a limiting mechanism, during the deburring process of the limiting platform supporting the shoe sole, the electric push rod of the limiting mechanism can push the inclined pressure block down and press it against the downward groove, so that the limiting platform, bottom slide bar, side slide bar, and slide rail form a tight limiting relationship, effectively preventing the limiting platform from moving when the shoe sole is under grinding force, thereby ensuring that the limiting platform stably supports the shoe sole for deburring and grinding, and greatly improving the deburring and grinding accuracy of the shoe sole.

The application discloses a high-precision internal tooth grinding method for automobile gear internal tooth processing. The grinding method comprises the following steps: S1, starting a numerical control grinding machine, selecting a processing program and setting gear processing parameters; S2, the current tooth contact of a grinding wheel and a workpiece gear; S3, after the grinding of the current tooth is completed, the grinding wheel is separated from the workpiece gear; S4, the workpiece gear is divided into teeth, wherein the tooth division pulse number is equal to the basic pulse number plus the compensation pulse number; and S5, repeating S2, S3 and S4. When the grinding of the current tooth is completed and the next tooth is switched to, the decimal part of the tooth division pulse of the current tooth is taken as the compensation pulse, the compensation pulse is added to the basic pulse, so that the tooth division pulse of the next tooth is obtained, and the workpiece gear can be driven to rotate to the next tooth with high precision by the tooth division motor. The high-precision tooth division is realized, the transmission efficiency, the carrying capacity and the service life of the workpiece gear are improved, the noise level of the workpiece gear is reduced, and the increasingly strict requirements of the automobile industry on the gear grinding precision are met.

This utility model discloses a glassware grinding machine. It includes a frame, a worktable, a clamping mechanism, a grinding head mechanism, a cooling system, and a control system. The worktable is located at the front end of the frame, used to support the glassware, and can move along the X and Y axes to control grinding parameters. The clamping mechanism is located on the worktable, used to hold the glassware to be ground, ensuring its stability during processing. The grinding head mechanism is arranged side-by-side at the rear end of the frame, with grinding wheels, one of which is a coarse grinding wheel for rough grinding, and the other is a fine grinding wheel for fine grinding. The cooling system includes coolant nozzles that spray coolant to cool the ground area of ​​the glassware. The control system is located in the electrical control cabinet and also has a human-machine interface for operation and display. During glassware grinding, roughing and finishing are performed in steps, continuously grinding in sequence, improving the accuracy of the grinding and reducing the breakage rate of the glassware.

The utility model relates to material processing technical field, and a kind of civil aviation material polishing equipment of easy to hold;Sliding platform is slidably arranged on the upper portion of support platform by slide rail pair, and two multi-point suction disc flexible tooling are fixedly arranged on the upper portion of sliding platform, support shaft is fixedly arranged on the rear side of support frame, lifting mechanism connected with support shaft is equipped on support platform, overturning mechanism connected with lifting mechanism is equipped on support shaft, linkage switching mechanism connected with overturning mechanism is equipped on sliding platform, and one end of electric telescopic rod is equipped with clamp, by setting two independent multi-point suction disc flexible tooling, the different curvature of workpiece front and back two sides is respectively adapted, the profiling adsorption support of "one side one tooling" is realized, and the pure mechanical linkage of lifting mechanism, overturning mechanism and linkage switching mechanism is matched, automatic completion is taken piece, overturning, shift and reposition in one clamping cycle, without manual intervention, improve polishing precision and efficiency, reduce labor intensity and workpiece damage risk.

The utility model provides a novel glass bilateral belt sander, which relates to the technical field of glass processing equipment, and comprises a machine table, a plurality of support bridges are arranged on the machine table, a plurality of roll shafts are arranged on the support bridges, and the roll shafts on the support bridges jointly form a glass support surface; a first abrasive belt device is arranged on one side of the machine table, a second abrasive belt device is arranged on the other side of the machine table, and the first abrasive belt device and the second abrasive belt device each comprise abrasive belt machining assemblies which are of the same structure and are arranged in a crossed mode. A conveying device is further arranged on the machine table and comprises a vacuum adsorption synchronous belt used for conveying glass. The vacuum adsorption synchronous belt is connected with a filter tower, and the filter tower is connected with a vortex fan for providing negative pressure. The glass polishing machine has the beneficial effects that through the combined application of the vacuum adsorption synchronous belt, the filter tower and the vortex fan, the stability of glass is enhanced, shaking and displacement in the polishing process are reduced, and the polishing precision is further improved.

The invention relates to the technical field of protection pipe machining, in particular to MPP cable protection pipe production and machining equipment and a using method, the MPP cable protection pipe production and machining equipment comprises an in-pipe self-adaptive grinding unit, an outer wall magnetic control positioning unit and a pipe supporting and driving unit, and a central control unit can be further configured to be used for linkage regulation and control of all the units. According to the MPP cable protection pipe production and machining equipment and the using method, the thickness difference of the pipe wall can be automatically recognized, and self-adaptive grinding is achieved, dynamic balance is formed by means of magnetic coupling acting force and pre-tightening force of a mechanical elastic pre-tightening assembly, when the pipe wall thickness is increased, magnetic coupling magnetic force is weakened, the pre-tightening force automatically pushes a grinding machine to stretch out and draw back to be attached to the pipe wall side, and the grinding effect is achieved. When the wall thickness of the pipe is reduced, the magnetic coupling magnetic force is enhanced, the grinding machine is driven to reset reversely, the matched grinding attaching force is kept all the time, the requirements for different wall thicknesses can be precisely met without manual intervention, the problems that existing equipment is poor in grinding adaptability and needs manual adjustment are thoroughly solved, and the grinding precision and efficiency are greatly improved.

The utility model relates to the technical field of building ventilation component preparation, and discloses exhaust smoke window machining and grinding equipment which comprises an outer shell, an eccentric sleeve is arranged in the outer shell, a pneumatic rotor is movably connected in the eccentric sleeve in a sleeved mode, and a transmission shaft is fixedly connected in the pneumatic rotor in a sleeved mode. The right end of the outer surface of the transmission shaft is fixedly sleeved with a first conical disc, the right side of an inner cavity of the outer shell is fixedly sleeved with a second conical disc, the inclined faces of the second conical disc are each provided with a set of linear sliding grooves, and balls are arranged in the linear sliding grooves. According to the machining and grinding equipment for the exhaust smoke window, for the pneumatic rotor and a structure on the pneumatic rotor, when a first conical disc rotates along with rotation of an eccentric sleeve, a ball body is forced to move outwards along the track of a linear sliding groove under the action of centrifugal force, and a transmission shaft and a grinding head on the transmission shaft are reversely extruded to move towards the left side; therefore, the loss generated when the grinding head grinds the exhaust smoke window is compensated.

The utility model relates to the technical field of automobile part machining equipment, and discloses a deburring device for engine rear suspension support machining, which comprises a box body, the front end of the box body is rotatably connected with a box door through a hinge, and the front end of the box door is provided with an observation window; the device further comprises a clamping and rotating mechanism, the clamping and rotating mechanism is arranged in the box body, and the clamping and rotating mechanism is used for fixing the support and rotating the support at the same time; and the driving mechanism is arranged at the right end of the box body. Through the clamping and rotating mechanism, the driving mechanism and the polishing mechanism, automatic clamping, rotating and polishing of the engine rear suspension support are achieved; compared with a traditional manual polishing mode, the device can remarkably reduce manual intervention, the problems of polishing efficiency reduction and unstable quality caused by manual fatigue are solved, in large-scale production, the production efficiency can be greatly improved, the production cost can be greatly reduced, meanwhile, the consistency of polishing quality is guaranteed, and the product quality is improved. And the high-efficiency production requirement of modern automobile manufacturing is met.

This invention belongs to the field of water pump rotor mandrel external cylindrical grinding technology, specifically disclosing a water pump rotor mandrel external cylindrical grinding processing device, including a base frame, a clamping and fixing rotation mechanism, a feeding device, and a self-compensating dressing grinding device. The clamping and fixing rotation mechanism can quickly and accurately center and clamp the mandrel, ensuring grinding stability and accuracy; the automated grinding process, with coordinated operation, greatly improves production efficiency and reduces labor costs; the self-compensating grinding device can automatically dress the dull grinding wheel and compensate for the distance between the dressed grinding wheel and the mandrel, ensuring grinding continuity, effectively avoiding workpiece surface damage, improving mandrel fatigue strength and life, reducing production costs, and achieving a dual improvement in quality and efficiency.

This utility model provides a grinding fixture for unicompartment femoral components of a femoral prosthesis, belonging to the field of medical device technology. The grinding fixture includes a main body, a first clamping assembly, and a second clamping assembly. The main body has a processing station suitable for installing the unicompartment femoral prosthesis. The processing station has a first positioning part with a mounting hole and a second positioning part. The first clamping assembly includes a locking sleeve and a locking nut. The locking sleeve passes through the mounting hole and is suitable for the insertion of a first fixation post. The second clamping assembly is located on the second positioning part and has a positioning hole suitable for the insertion of a second fixation post. This grinding fixture for unicompartment femoral components of a femoral prosthesis, provided by this utility model, clamps the first and second fixation posts respectively, increasing the stability of the fixation.

The utility model relates to a kind of steel wire card assembly detection equipment, including workbench, conveying mechanism for conveying carrier assembly loaded with rotor is provided on workbench, first turnover mechanism, polishing mechanism, first steel wire card assembly mechanism, second turnover mechanism, second steel wire card assembly mechanism, detection mechanism and are sequentially provided along conveying mechanism for handling bad product handling mechanism, the first steel wire card assembly mechanism includes vibration disc feeding assembly, distributing component, clamping assembly and assembly component, the discharge port of vibration disc feeding assembly is docked with the feed inlet of distributing component, assembly component is used for positioning, moving and assembling on the steel wire card of distributing component. The steel wire card assembly detection equipment not only realizes the automatic assembly of steel wire card, but also improves assembly efficiency and assembly accuracy.

The utility model discloses a resistance welding equipment of point welding head's polishing, including welding machine body, and the welding machine body is connected with the welding support, and the bottom of welding machine body is connected with the rotating base, and the bottom of rotating base is equipped with the support base, and one side of support base is equipped with the elevating system, and the elevating system is equipped with the polishing mechanism on, and the polishing mechanism includes the support plate, and the bottom of support plate is equipped with the drive motor, and the top of support plate is equipped with the polishing box body, and the drive gear, idler and polishing gear are rotatably equipped in the polishing box body, and the output of drive motor extends and is connected with drive gear upwards, and the middle of polishing gear is equipped with the polishing shaft, and the upper and lower two sides of polishing box body all are seted up with the polishing groove, and the polishing disc is equipped in the polishing groove, and the upper and lower two ends of polishing shaft are connected with the polishing disc of the upper and lower two sides of polishing box body respectively. The scheme can realize the quick automatic polishing to the welding head, need not to disassemble the welding head or manual replacement, reduce the downtime, and improve the continuity of the welding operation.

The utility model relates to the technical field of roll grinders, in particular to a medium-high mechanism for a high-precision roll grinder, which can effectively improve stability and grinding precision and comprises a servo motor, a speed reducing mechanism, a ball screw, a screw nut seat and a swing rod. The speed reducing mechanism is connected with the servo motor, the lead screw nut seat is in threaded connection with the ball screw, and the ball screw driving device is characterized in that a supporting block is arranged on the lead screw nut seat, a roller is arranged at one end of the swing rod, the roller is supported on the supporting block in a sliding mode, an eccentric sleeve is installed at the other end of the swing rod, and the eccentric sleeve is connected with the lead screw nut seat. The middle of the swing rod is connected with an oil cylinder.

The utility model discloses a pressure regulating mechanism for diamond grinding, which relates to the technical field of diamond grinding and comprises a diamond grinding machine body and a fine adjustment component, the fine adjustment component is arranged in the diamond grinding machine body and comprises a guide rod connected onto the diamond grinding machine body, and a rotating block and a rotating sleeve are movably connected onto the guide rod. A connecting sleeve and a mounting sleeve are movably connected to the rotating block and the rotating sleeve correspondingly, a mechanical telescopic rod and a round rod are movably connected to the connecting sleeve and the mounting sleeve correspondingly, triangular blocks are movably connected to the rotating block and the rotating sleeve correspondingly, and then the L-shaped rod drives the mounting sleeve and the rotating sleeve to slide on the guide rod; and finally, through transmission of the connecting rod and the fine adjustment rod, the grinding rod presses the diamond in a fine amplitude, and the diamond grinding precision is effectively improved during different diamond grinding stages and different part treatment.

The invention discloses a polishing device for power cable protection pipe production, and belongs to the field of protection pipe production, the polishing device comprises a base, the upper end of the base is fixedly connected with a fixing plate, the middle part of the fixing plate is provided with a circular through hole, and the middle part of the base is provided with a slag falling hole; and the upper end of the base is fixedly connected with a mounting plate. The hydraulic telescopic rod drives the conical block to be matched with the inclined face of the positioning block, self-adaptive centering clamping of power cable protection pipes with different diameters is achieved, the coaxiality of the protection pipes in the grinding process is ensured, and the grinding precision is effectively improved; meanwhile, the elastic reset design of the spring A and the spring B is matched, full-process automation of clamping, feeding and resetting is achieved, manual repeated adjustment is not needed, the clamping and part taking efficiency is greatly improved, part impact is avoided through the buffering effect of the springs, the service life of the device is prolonged, the structure is simple and reliable, adaptability is high, and the production cost is low. And a stable positioning foundation is provided for subsequent polishing operation.

The utility model provides a stop valve machining integrated device, relates to the technical field of stop valve machining, and solves the problems that manual grinding efficiency is low, an overcut phenomenon is easy to generate, crushed gravels cannot be collected and the like. The stop valve machining integrated device comprises a bottom plate, supporting frames, a limiting support and a grinding mechanical arm, and the supporting frames are arranged on the two sides of the bottom plate; a limiting support is arranged between the supporting frames so that rotation can be achieved, a polishing mechanical arm is arranged on one side of each supporting frame, and the valve body sand core fixed to the limiting support is subjected to global fine polishing through the polishing mechanical arms. The limiting support is used for fixing a valve body sand core, the limiting support is driven to rotate by combining with the adjusting rotating shaft of the supporting frame, rotating adjustment of valve body gravel is achieved, fine grinding of the whole area is conducted in cooperation with the grinding mechanical arm, and meanwhile ground broken gravel is collected and cleaned through the collecting plate of the bottom plate. And the grinding precision and the grinding efficiency are greatly improved.

This invention relates to the field of polishing technology, and more particularly to a polishing device for repairing the inner wall of a heavy-duty vehicle oil-gas spring cylinder. The device includes a body, a fixed plate mounted on the upper surface of the body, a movable plate connected to the upper surface of the fixed plate via a horizontal and vertical moving mechanism, an arc-shaped opening through the front surface of the movable plate, a segmented plate rotatably connected to the inner side of the arc-shaped opening via an adjusting mechanism, a rotating cylinder slidably passing through the front surface of the movable plate, and a driving plate rotatably sleeved on the rear end of the outer surface of the rotating cylinder via a reciprocating drive mechanism. A telescopic mechanism is provided between the driving plate and the movable plate. This invention ensures that the polishing wheel performs uniform polishing around the central axis of the spring cylinder, has a rapid positioning function, improves polishing accuracy, and can flexibly avoid and perform positioning polishing when there are protrusions on the surface of the spring cylinder.

The utility model belongs to the technical field of workpiece surface treatment, and relates to a tool for polishing the inner surface of a workpiece. The tool comprises a rotating mechanism and a polishing mechanism, and a protective cover is arranged outside the polishing mechanism; the rotating mechanism comprises a rotating shaft, a transmission mechanism is arranged at the upper end of the rotating shaft, the rotating shaft rotates through the transmission mechanism, and an adjusting disc is arranged at the lower end of the rotating shaft. The grinding mechanism comprises a plurality of grinding blades arranged on the upper surface of the adjusting disc. According to the tool, the grinding efficiency can be greatly improved, and convenience is achieved; and moreover, a plurality of grinding blades are arranged, so that the grinding precision is remarkably improved, and the phenomenon of uneven surface caused by manual grinding is avoided.

The invention discloses a full-automatic grinding device and method based on pipeline machining, and relates to the technical field of pipeline grinding. The pipe body grinding device comprises a machining box arranged on a grinding table, a pipe body to be ground is placed in the machining box, the pipe body grinding device further comprises a hydraulic pushing rod, a lifting rod used for driving lifting is arranged at the driving end of the hydraulic pushing rod, and an inner grinding unit is arranged on the lifting rod; the inner grinding unit comprises a plugging assembly and an inner grinding assembly. The outer grinding unit comprises a driving assembly, a transmission assembly and a pushing assembly; and an air suction box used for adsorbing grinding chippings inside and outside the pipe body is arranged in the cleaning assembly. The pipe body grinding device has the advantages that efficient grinding of a pipe body can be achieved in the mode that closed grinding is matched with synchronous adsorption, chippings generated during grinding cannot escape and accumulate, the grinding precision is higher, synchronous grinding of the inner wall and the outer wall of the pipe body can be achieved through cooperation of the multiple inner grinding plates and the multiple outer grinding plates, the grinding efficiency of the pipe body is greatly improved, and the labor intensity of workers is lowered. And the grinding range is wider.