24011results about "Grinding drives" patented technology

The invention relates to aluminum alloy pipe machining equipment, in particular to a polishing device for a formed aluminum alloy pipe. The right support and the left support are arranged in parallel at the same height, the left support is provided with an inner polishing part capable of going deep back and forth, and the right support is provided with a rotating part capable of driving a pipe to rotate. According to the grinding device for the formed aluminum alloy pipe, a left support and a right support which are symmetrically arranged form a main body frame, the front end of the left support is provided with an inner grinding part capable of conducting feeding movement in the front-back direction, and the right support is correspondingly provided with a rotating part for driving the pipe to rotate; the rotating part comprises two sets of supporting rollers coaxially installed on the right support, and a plurality of grinding blocks used for grinding the outer surfaces are evenly distributed on the peripheries of roller bodies of the supporting rollers. The inner grinding part carries a moving seat capable of longitudinally sliding through a left support guide rail, a grinding shaft capable of rotating at a high speed is arranged in the moving seat, the tail end of the grinding shaft is rigidly connected with a multi-blade grinding head used for inner wall machining, and progressive grinding of the grinding head in an inner cavity of the pipe is achieved through axial feeding driving of the moving seat.

An apparatus for polishing a butt weld includes a machine frame; a polishing mechanism, including a rotating arm, a supporting column rotatably mounted on the rotating arm, and a polishing roll rotatably mounted on the supporting column in a circumferential direction of the polishing roll; an angle limiting assembly, movably mounted on the rotating arm, the angle limiting assembly limiting an angle at which an outer side end of the supporting column swings upward; a roll driving part, mounted on the rotating arm. The roll driving part is in transmission connection with the polishing roll and drives the polishing roll to rotate on the supporting column in the circumferential direction of the polishing roll. An arm driving part is mounted on a fixed frame, the rotating arm being mounted on the arm driving part, and the arm driving part drives the rotating arm to rotate in a circumferential direction.

Disclosed in the present utility model is a die-cast part machining and grinding device, comprising a machining table. Electric slide rails are mounted on two sides of the upper surface of the machining table; electric sliding blocks are slidably arranged on the electric slide rails; a mounting frame is connected to the top ends of the electric sliding blocks; and a transmission displacement assembly is mounted in the middle of the upper portion of the mounting frame. According to the die-cast part machining and grinding device, when a die-cast part on a bearing table is limited, personnel can first adjust the vertical displacement position of the mounting frame by means of the cooperation between the electric slide rails and the electric sliding blocks, then use the transmission displacement assembly to adjust the transverse displacement position of a grinding piece I so that the grinding piece I can be located above an area to be ground of the die-cast part, and then start a motor II, to make two transmission lead screws I to rotate synchronously by means of the transmission of synchronous wheels and synchronous belts. Since threads of the two transmission lead screws I have opposite preset directions, lead screw slide sleeves II acting with respective transmission lead screws I can move in opposite directions in a transmission state.

The present invention discloses a rapid prototyping precision mold manufacturing welding device in the field of mold welding technology, aiming to solve the problems of low positioning efficiency, poor adaptability, reduced precision and unstable quality caused by the separation of welding and grinding in traditional mold manufacturing welding devices. The device includes a workbench, a quick fixing mechanism and a welding and grinding mechanism; a load-bearing frame and a controller are arranged on the top of the workbench; the quick fixing mechanism contains a control turntable, a clamping part, a control part and a driving part, through which the clamping part can be synchronously approached or moved away, adapting to molds of different sizes and improving positioning accuracy and efficiency; the welding and grinding mechanism integrates welding parts and grinding parts, which run synchronously and are located on the same horizontal plane, reducing transportation time and cost, avoiding secondary clamping errors, and improving welding and grinding quality. In addition, the device also has the advantages of stable load-bearing, smooth operation, convenient operation, and a high degree of automation, which can effectively improve the production efficiency and product quality of precision mold manufacturing.

The invention relates to the technical field of aluminum pipe polishing, and discloses aluminum pipe fitting inner wall polishing equipment which comprises a placing part, the placing part comprises a sliding rail base, the upper surface of the sliding rail base is slidably connected with a sliding seat through a sliding groove, and the sliding seat is connected with a placing plate through an elastic piece arranged on the upper surface of the sliding seat; the upper surface of the placing plate is fixedly connected with an electric push rod through a support, the output end of the electric push rod is fixedly connected with a clamping plate and a polishing part which are attached to the outer surface of the circumference of the external aluminum pipe, the polishing part comprises a rack, and the upper surface of the sliding rail base is fixedly connected with the lower surface of the rack through a machine base. The aluminum pipe fitting inner wall polishing equipment can effectively solve the problems that in the prior art, a traditional mechanical polishing method is generally low in efficiency, equipment adopted for rough polishing and equipment adopted for fine polishing are different, an aluminum pipe subjected to rough polishing needs to be transferred and positioned for the second time, a large amount of manpower and material resources are wasted, and automatic production is not facilitated.

The invention discloses a double-force-control automatic compensation method and double-force-control grinding and polishing integrated device.According to the technical scheme, the double-force-control automatic compensation method comprises the steps that workpiece surface crystal orientation data are obtained through a diffraction pattern, and a crystal orientation distribution matrix is generated through denoising and clustering analysis; dividing a crystal orientation region and associating the friction coefficient, hardness and other mechanical properties; based on the material removal rate distribution matrix, a gradient algorithm is adopted to correct grinding tracks and cutting parameters of all areas, and a compensation track matrix is generated; and double-force-control feedback of normal force and tangential force is combined, the abrasive particle contact force and the feeding rate are dynamically adjusted, and a closed-loop compensation strategy is formed. Through crystal orientation partition optimization and double-force-control dynamic compensation, the problem that compensation is insufficient in the grinding process of the glass crystal is solved, and high-precision and self-adaptive surface machining is achieved.

The invention discloses grinding equipment with a surface self-adaption function for civil aircraft maintenance, and relates to the technical field of grinding equipment, the grinding equipment comprises a grinding mechanism, a self-adaption mechanism and a positioning mechanism, the grinding mechanism is fixedly connected with the self-adaption mechanism, and the self-adaption mechanism is fixedly connected with the positioning mechanism. The grinding mechanism is used for driving a grinding disc to work, and flexible grinding of the surfaces of different areas can be achieved. The self-adaptive mechanism is composed of a self-adaptive assembly, an expanding and contracting assembly and a rotating assembly, the grinding disc has the flexible adjusting capacity when making contact with the surface of a workpiece, the expanding and contracting assembly achieves expanding and contracting, the rotating assembly drives an expanding and contracting block to revolve, and therefore the adaptability of the grinding disc on the complex curved surface is guaranteed. And the positioning mechanism is used for positioning parts needing to be maintained, so that the purposes of adapting to complex curved surfaces, improving the polishing precision and efficiency, avoiding the problem of difficult attachment and ensuring the maintenance quality and the operation safety are achieved.

The invention discloses a polishing device and polishing equipment, the polishing device comprises a polishing mechanism and an angle adjusting mechanism, a driver of the polishing mechanism is mounted on a mounting part, and a transmission shaft is connected with the driver and can be driven by the driver to rotate around the axis of the transmission shaft; the angle adjusting mechanism comprises a universal joint and an elastic reset assembly, the universal joint is connected between the polishing component and the transmission shaft, and the polishing component is provided with a first position where the included angle between the polishing component and the transmission shaft is larger than zero degree and a second position where the included angle between the polishing component and the transmission shaft is equal to zero degree. The polishing component drives the elastic reset assembly to deform from the first state to the second state in the process of rotating from the second position to the first position, and the elastic reset assembly drives the polishing component to return to the second position in the process of recovering from the second state to the first state. The problems that the swing angle of the polishing head of the polishing machine is complex to adjust, and the workload of programmers is large are solved.

The invention relates to the technical field of pipe welding, and discloses special welding equipment for an inner pipe connection type heat insulation oil casing, which comprises a welding table, a pipeline clamping mechanism is arranged at the top of the welding table, and the pipeline clamping mechanism comprises two rotating rings. During oil pipe machining, two oil pipes penetrate through the fixing rings to be connected, the electric telescopic rods drive the V-shaped clamping plates to clamp the oil pipes, and the driving motors enable the supporting rollers to support the oil pipes through the gears and the lead screws. The adjusting motor is matched with a related structure, so that the grinding wheel and the arc-shaped grinding piece are attached to oil pipes with different diameters. The grinding motor and the rotating motor work cooperatively to comprehensively grind the oil pipe, during welding, the oil pipe rotates at a constant speed to achieve uniform welding, and after welding, the grinding wheel and the arc-shaped grinding piece clean weld joints. In addition, in the polishing process of the equipment, a cleaning brush is driven to clean a polishing part through transmission of a gear and a chain, the polishing and welding quality is guaranteed, and the machining efficiency is improved.

The utility model discloses an aviation aluminum alloy pipe type casting polishing device which comprises a base, two sets of supporting seats are arranged on the base, two sets of first electric push rods are symmetrically arranged on the two sets of supporting seats through supporting grooves, supporting roller sets are arranged at the output ends of the first electric push rods, and a second electric push rod is arranged above the base through a mounting frame. A driving roller set is arranged at the bottom end of the second electric push rod, an external grinding block is arranged on one side of the middle of the supporting base and the driving roller set, a movable driving structure is arranged in cooperation with the external grinding block, and a mounting base is arranged on one side of the base through a third electric push rod. A first motor, a fourth electric push rod and an internal grinding roller which are sequentially connected are arranged on the mounting base, flexible supporting and rotating driving of the aviation aluminum alloy pipe type casting during grinding can be achieved, meanwhile, synchronous grinding of the interior and the outer wall of the aviation aluminum alloy pipe type casting can be achieved synchronously, and the machining efficiency is improved.

The invention relates to the technical field of grinding equipment, in particular to an aluminum foil mill roller grinding device which comprises a rack, a centering clamping assembly and a grinding assembly, the centering clamping assembly is arranged on the rack and used for clamping a roller and enabling the roller to rotate around the axis of the roller, and the grinding assembly comprises a shell, a grinding disc, a supporting column and a damping ring. The shell is slidably arranged on the rack, the grinding disc is rotatably arranged on the inner side of the shell, the axis of the grinding disc is horizontal, and the grinding disc can rotate around the axis of the grinding disc. The grinding device is provided with the supporting column and the grinding block, the grinding block is hinged to the periphery of the supporting column, and the grinding block is configured to be capable of rotating so that the grinding face of the grinding block can always keep linear contact with the peripheral face of the roller; therefore, the grinding block is not in linear contact with the roller due to different abrasion losses of the two ends of the grinding block at the grinding contact position of the grinding block and the roller, the grinding quality is guaranteed, and meanwhile the grinding efficiency is improved.

The invention discloses an inner wall grinding device for deep-hole precision parts, and particularly relates to the technical field of pipeline grinding, the inner wall grinding device comprises a grinding box, a grinding mechanism is mounted on one side of a driving assembly, a centering assembly is mounted on the other side of an inner cavity of the grinding box, and a rotating mechanism for driving a round pipe part to rotate is mounted on the rear portion of the centering assembly; and a cooling mechanism for spraying the round pipe part is installed on the right side of the bottom of the grinding box, and two supporting assemblies for supporting the round pipe part are installed on the right side of the bottom of the grinding box. According to the inner wall grinding device for the deep-hole precise part, in the process that a round pipe part is ground from right to left through the arranged grinding mechanism, the internal structure of the grinding mechanism moves under the effect of grinding the round pipe part, and chippings and cutting fluid contained in an inner cavity of the round pipe part can be synchronously scraped outwards; the problem of secondary scratching caused by scrap accumulation in deep hole machining is solved, and meanwhile the workload of the follow-up cleaning procedure is reduced.

An offline programming method for a full-six-axis CNC rough machining and polishing device. The method comprises: importing a three-dimensional model of a product into CAM software, interactively setting information of a workpiece coordinate system and a tool coordinate system of the three-dimensional model, selecting a route on which an operation is required, and generating path data; importing the three-dimensional model and the path data into offline programming software, and performing simplification processing on the path data; implementing an overall offset function, a single-point offset function and posture adjustment of the path data in the tool coordinate system; implementing simulation running of a tool and collision detection; on the basis of the path data and tool data, generating an NC program conforming to a program standard; and a six-axis device creating the workpiece coordinate system on the product; and monitoring a running state. Therefore, problems such as the polishing programming efficiency of products of complex structures being low, the follow-up reading, modifying and positioning being time-consuming due to the fact that CAM software exports excessive path data, and there being a certain difference between a model generation path and an actual device running path are solved.

The invention provides a cable protection pipe butt welding device, and relates to the technical field of welding, the cable protection pipe butt welding device comprises a welding table, two butt joint tables are arranged at the top end of the welding table, two fixing seats are fixedly mounted at the top ends of the butt joint tables, and a fixing assembly for fixing a cable protection pipe is arranged between the two fixing seats; a grinding assembly used for grinding the cable protection pipe is arranged in the middle of the welding table, the fixing assembly comprises two supporting frames fixedly connected to the top end of the butt joint table, an annular rack is rotationally connected between the two supporting frames, and a clamping assembly used for fixing the cable protection pipe is arranged on the inner wall of the annular rack. Annular guide rails are fixedly connected to the two sides of the outer surface of the annular rack, the cable protection pipe is fixed to an inner cavity of the annular rack through the clamping assembly, the cable protection pipe can rotate according to changes of the welding position through the annular rack, the flatness of the welding position is guaranteed through the grinding assembly, and the welding efficiency and quality of the device are effectively improved.

The invention belongs to the technical field of wood polishing, and discloses a woodcarving blank corner polishing device which comprises a device box and supporting legs fixedly arranged on the bottom wall of the device box. The woodcarving blank corner grinding device further comprises a contact force self-adjusting assembly arranged on the device box and a semi-linkage coupling control assembly arranged on the contact force self-adjusting assembly, the hardness of wood can be automatically detected, the contact force and the rotating speed can be correspondingly adjusted, when hard wood is treated, the rotating speed of the device is automatically reduced through the Newton's second law, and the grinding efficiency is improved. When softwood is treated, an equipment stop lever and a stop block rotate synchronously, rotating speed synchronization of a rotating cylinder and a second electric motor is achieved, machining efficiency is improved, the Hooke's law is utilized, wood hardness is converted into piston displacement, high-frequency rapid grinding is achieved, meanwhile, contact force is reduced, and wood damage is prevented; through a full-automatic closed-loop control system, automatic and efficient blank plate machining is achieved.

The invention relates to the technical field of glass processing equipment, and discloses an intelligent composite glass edge grinding machine which comprises a machine base and a processing part arranged on the machine base, an edge grinding assembly is arranged on the processing part, and the edge grinding assembly comprises a mounting base arranged on the processing part, a driving motor capable of moving back and forth on the mounting base and a connecting base. A rotating shaft of the driving motor is connected with an outer grinding head and an inner grinding head which are coaxially arranged, the inner grinding head can move relative to the outer grinding head in the axial direction of the inner grinding head, and the mounting base is provided with a second adjusting device capable of driving the driving motor and the connecting base to move back and forth. The intelligent composite glass edge grinding machine is high in machining efficiency, high in stability and small in size.

The invention discloses a cast pipe inner wall grinding device and system and relates to the technical field of grinding equipment, the cast pipe inner wall grinding system comprises a rack, a rotary supporting device and a cast pipe inner wall grinding device, and the cast pipe inner wall grinding device comprises a grinding feeding mechanism, an anti-swing mechanism and a grinding mechanism; the grinding feeding mechanism comprises a first linear driving device, a first rotating power source, an outer fixing sleeve and an inner rotating shaft, the anti-swing mechanism comprises an outer rotating sleeve, a positioning wheel assembly and a distance adjusting mechanism, and the grinding mechanism comprises a second linear driving device and a grinding wheel body. The outer fixing sleeve is radially supported through the positioning wheel assembly, radial swing of the grinding wheel shaft is restrained, and the grinding stability can be improved; the distance adjusting mechanism can dynamically adjust the distance between the positioning wheel assemblies to adapt to cast pipes with different calibers; and the second linear driving device drives the grinding wheel to move in the radial direction, constant-pressure grinding is achieved in cooperation with the pressure detection device, the grinding rhythm is dynamically adjusted, the grinding effect can be improved, and the grinding consistency is improved.

The invention belongs to the technical field of precision machining equipment, and discloses a partitioned and deformation-controllable precision polishing grinding head which comprises a partitioned base, a positioning block is arranged in the center of the lower portion of the partitioned base, at least one connecting rod assembly is arranged above the partitioned base, and the top end of each connecting rod assembly is connected with a curvature adjusting head. A flexible polishing head is arranged above the curvature adjusting head, a protective shell is arranged on the outer side of the connecting rod assembly, the flexible polishing head and the protective shell are connected through a grinding head frame, and the whole device is provided with a drive circuit. According to the precise polishing grinding head capable of being partitioned and deformed controllably, through the partitioned base and the independent shape memory alloy driver, the curvature radiuses of the center and the edge of the flexible polishing head are controlled, the edge pressure is optimized, stable contact rigidity and uniform pressure distribution are brought, and finer surface shape control is achieved; the shape memory alloy driver is a solid-state element and is matched with the transverse amplification connecting rod, and needed driving force and displacement can be achieved in a relatively compact space.

The utility model relates to the technical field of crankshaft machining, and discloses a crankshaft burr grinding machine which comprises a machine frame, chucks are rotationally connected to the two sides of the machine frame respectively, a first motor is fixedly connected to the outer portion of one side of the machine frame, and rockers are rotationally connected to the tops of the chucks on the two sides respectively. Clamping blocks are slidably connected to the close sides of the chucks on the two sides, chucks are fixedly connected to the close sides of the clamping blocks on the two sides, a crankshaft is arranged between the chucks on the two sides, the clamping blocks are in threaded connection with the rocker, a detection assembly is arranged at the top of the rack, and a grinding wheel is arranged in the middle of the rack. According to the crankshaft grinding device, the clamping block can move in the chuck by rotating the rocker, then the position of the chuck is adjusted, the connecting rod journal can rotate with the central axis of the first motor as the rotating shaft, and therefore the situation that due to the fact that manual grinding errors are large, the crankshaft is excessively abraded, and the precision of the crankshaft is affected can be avoided.

The invention relates to the technical field of building template repairing equipment, in particular to a building template surface building repairing device, and provides a building template surface building repairing device aiming at solving the problems that existing building template repairing equipment does not have an automatic discharging function, and materials can only be manually taken and loaded to a designated vehicle. Comprising a first conveying table, a second conveying table and a repairing box, and two polishing rollers capable of rotating are arranged on the inner wall of the repairing box; a material blocking table and a side plate are arranged at the right end of the second conveying table, a driving rod is arranged on the side plate, a four-claw frame is further arranged on the side plate, a U-shaped groove is formed in the side plate, a loading vehicle is arranged at the right end of the material blocking table, and when the driving rod rotates, the structure that the four-claw frame moves along the U-shaped groove to enable the building formworks on the material blocking table to be carried to the loading vehicle can be formed. When the four-claw frame moves along the U-shaped groove, a structure that the four-claw frame vibrates and moves up and down after being turned over can be formed; and after being polished, the building template can be automatically unloaded to a designated position for loading, manual operation is replaced, and the working risk is reduced.

The invention relates to the technical field of grinding machines, in particular to a coreless grinding machine for machining a small cylinder sleeve, which comprises a grinding machine base, a grinding wheel and a guide wheel, the grinding wheel and the guide wheel are both arranged on the grinding machine base, a workpiece supporting plate is arranged between the grinding wheel and the guide wheel, and a return lifting shaft is arranged above the workpiece supporting plate between the grinding wheel and the guide wheel. The return lifting shaft is parallel to the axis of the grinding wheel, and a mounting hidden groove is formed in the return lifting shaft; after the air cylinder sleeve moves to the position of the cylinder sleeve position sensor through grinding machining, the return lifting shaft is used for controlling the air cylinder sleeve to be lifted, the air cylinder sleeve automatically slides and returns to the side where a worker is located, and occupation of the worker for receiving the machined air cylinder sleeve on the other side is reduced.

The invention relates to the technical field of diamond roller machining, in particular to diamond roller mounting inner hole high-precision grinding equipment which comprises a base, a linkage column fixedly connected to the top of the base and a rotary clamping assembly arranged on the base and used for centering and clamping a diamond roller. The lifting plate is provided with an air cooling type grinding assembly which conducts efficient cooling type grinding and assists in inner hole chipping cleaning. According to the diamond roller grinding device, centering clamping treatment is conducted on diamond rollers of different sizes through the rotary clamping assembly, comprehensive efficient grinding treatment of different inner holes is achieved in combination with the air-cooled grinding assembly, the grinding requirements of the diamond rollers of different sizes can be automatically met without additional replacement operation, and through cooperation of the rotary clamping assembly and the air-cooled grinding assembly, the grinding efficiency is greatly improved. And the multi-direction grinding effect can be further achieved, and chippings can be discharged in an auxiliary mode for convenient collection.

The invention relates to the technical field of elbow polishing, and discloses a spheroidal graphite cast elbow casting polishing device which comprises a polishing table, a supporting table and a pair of placing tables are arranged at the top of the polishing table, a bent section of an elbow is placed above the supporting table, a straight section of the elbow is placed above the two placing tables, and motors are arranged on one sides of two ports of the elbow. Output shafts of the motors are fixedly connected with connecting rods, the outer walls of the connecting rods are fixedly connected with a first polishing cutter and a second polishing cutter, the diameter of the first polishing cutter is the same as the outer diameter length of the bent pipe, the diameter of the second polishing cutter is the same as the inner diameter length of the bent pipe, and an adjusting assembly used for driving the two containing tables to conduct position adjustment is arranged below the containing tables. And a chipping removing assembly for treating chippings on the inner wall of the pipeline is arranged on the side, away from the motor, of the second polishing knife, the chippings generated by polishing of the inner wall of the pipeline can be removed in time through the chipping removing assembly, and the situation that the chippings cause unsmooth or blocking of the pipeline, and consequently follow-up use of the bent pipe is affected is avoided.

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 universal joint fork lug hole grinding, and discloses a universal joint fork lug hole grinding device which comprises a workbench, a fixing mechanism used for fixing a universal joint fork and two grinding mechanisms provided with grinding machines in a clamping mode are arranged on the workbench, and the fixing mechanism comprises a rotating ring rotationally connected to the workbench; gear teeth are arranged on the outer side of the rotating ring, a jacking device and a supporting device are arranged on the inner side of the rotating ring, a jacking block is arranged in the jacking device and provided with a jacking face, a supporting seat is arranged in the supporting device, a shaft rod part of the universal joint fork slides in the supporting seat, and a supporting spring is further arranged in the supporting seat. The jacking block is used for pushing the earhole to the position concentric with the rotating ring, the rotating ring is driven by the connecting driving mechanism to rotate, and a grinding head on the grinding machine is tangent to the side, close to the jacking device, in the earhole. The device has the advantages that the lug hole is accurately positioned, the polishing head and the yoke rotate simultaneously to improve the polishing precision, and the polishing strength can be adjusted.

The invention discloses a sand injection type inner wall polishing device suitable for different pipe diameters, and relates to the field of pipe inner wall polishing, the sand injection type inner wall polishing device comprises a rough polishing mechanism and a fine polishing mechanism, the rough polishing mechanism comprises a supporting workbench, a tool base and a long-distance polishing assembly, and a three-jaw chuck is rotationally arranged on the tool base; the long-distance grinding assembly comprises a lifting workbench, a long driving shaft and a grinding disc, the grinding disc is coaxially fixed to the long driving shaft, the long driving shaft is installed on the lifting workbench, and the long driving shaft has the rotation freedom degree and the freedom degree of moving in the axial direction of the long driving shaft. The fine polishing mechanism comprises sanding pipes and a polishing base, the two sanding pipes are arranged on the polishing base in the axial direction of the long driving shaft at intervals, a conical hole and a round hole are sequentially formed in one end of each sanding pipe in the axial direction of the sanding pipe, the small-diameter end of each conical hole communicates with the corresponding round hole, a pushing piston is arranged in the corresponding round hole in a matched mode, and the sanding pipes are connected with sand injection pipes and sand discharging pipes. And mechanical grinding and abrasive particle polishing are conducted in sequence, the polishing precision is improved, and the device is suitable for small-pipe-diameter polishing production.

The invention belongs to the technical field of other metal machining machinery manufacturing, and particularly relates to pipeline inner wall grinding equipment which comprises a machine body, a first guide rail is fixedly connected to the upper surface of the machine body, a first guide groove is formed in the first guide rail, and two sliding tables are slidably connected into the first guide groove; a storage box is fixedly connected to the upper surface of one sliding table, a first hydraulic cylinder is fixedly connected to one side of the storage box, a grinding wheel is arranged at the output end of the first hydraulic cylinder, a positioning table is fixedly connected to the upper surface of the other sliding table, and a limiting ring and a limiting plate are fixedly connected to one side of the positioning table. A limiting groove is formed between the limiting plate and the limiting ring, a grinding assembly is arranged on one side of the first hydraulic cylinder and comprises a motor fixedly connected to the output end of the first hydraulic cylinder, and a positioning disc is fixedly connected to one side of the motor. The problem that metal dust generated during grinding is accumulated on the inner wall of the pipeline, and the pipeline grinding quality is affected is solved.

The invention belongs to the technical field of grinding, and discloses a self-adaptive weld joint grinding robot suitable for a large pipeline, which comprises a rack and a grinding assembly, the grinding assembly comprises a plane workbench, a slewing bearing seat, a pitching adjusting support and a supporting seat, and the plane workbench, the slewing bearing seat and the pitching adjusting support are sequentially arranged from bottom to top; the supporting base is installed on the pitching adjusting support in a sliding mode, a driving wheel, a polishing wheel, a tensioning wheel, an abrasive belt and a polishing motor are installed on the supporting base, the driving wheel, the polishing wheel and the tensioning wheel are distributed in a triangular mode, and the abrasive belt is arranged on the outer side of the driving wheel, the outer side of the polishing wheel and the outer side of the tensioning wheel in a sleeving mode to jointly form a polishing mechanism. The rotary supporting seat and the pitching adjusting supporting seat are sequentially arranged on the plane workbench, and the rotary supporting seat and the pitching supporting seat are connected through the reset spring, so that the polishing assembly installed on the pitching adjusting supporting seat has a great angle adaptation effect, and then factors such as misalignment of a welding seam and ovality change of a workpiece can be adapted.

The utility model relates to the technical field of pipeline processing, in particular to a pipeline fixer for plastic pipeline processing, which comprises a support frame, the surface of the support frame is provided with a first fixing frame and a second fixing frame which are used for clamping a pipeline, the side wall of the support frame is connected with a sliding block in a sliding mode, and the surface of the sliding block is fixedly provided with an annular frame. The side wall of the annular frame is rotationally connected with a rotating ring. The rotating ring and the connecting ring are arranged on the sliding block, the rotating ring and the connecting ring can rotate, when the rotating ring rotates, the polishing mechanism on the surface can be used for polishing the surface of a pipeline, and the phenomenon that the coating effect is affected by dirt on the surface of the pipeline is reduced; and therefore, the pipeline surface coating device is more convenient, and the processing time is saved.