9329results about "Revolution surface grinding machines" patented technology

The present disclosure provides a grinding robot for an inside wall of a small diameter pipe. The grinding robot includes a grinding device, a transmission device, and a driving device. By arranging the grinding robot into the above three portions, the overall bending pipe passability of the robot can be increased, which is convenient for the grinding robot to grind the small diameter pipe. A first gimbal and two second gimbals provided in the transmission device enable the grinding robot to flexibly pass through bends of the pipe, and enable a grinding driving force to be variably transmitted to the grinding device. When the grinding body rotates and contacts a pipe wall, a reaction force of the pipe wall on the grinding body is balanced by an adjusting spring adjustment force in a balance adjusting device and a self-weight of a grinding body.

The invention relates to the technical field of grinding wheel monitoring, in particular to a centerless grinding machine full-life-cycle grinding wheel state monitoring system and method.According to the centerless grinding machine full-life-cycle grinding wheel state monitoring system and method, through combined difference extraction of a main shaft current mean value fluctuation ratio and a power gradient continuous variation value and assisted by transverse comparison of periodic response intervals, effective recognition of time period boundaries of working condition states is achieved; according to the method, operation stage division does not depend on static threshold judgment any more, a track trend is established through linkage judgment of an amplitude kick point and a slope extreme value, a dynamic evolution path of signal response is clearer, the identification resolution of abnormal changes and local deviation trends is improved, response synchronous identification of parameter state changes is achieved, and the identification accuracy is improved. In multi-signal collaborative analysis, directivity comparison between a temperature rise mutation fragment and a current residual error response is carried out, so that the consistency analysis capability of response logic between different monitoring paths is enhanced, and the real-time performance, stability and anti-interference capability of state identification are improved.

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.

The invention relates to the technical field of industrial control, in particular to an intelligent centerless grinding machine cooling system and method for difficult-to-machine materials, and the system comprises a multi-source sensing unit, an edge calculation module, a decision center module, a precise execution module and a digital immune memory bank; compared with the defects that in the prior art, monitoring depends on a single temperature sensor, thermal field sensing is incomplete, thermal damage early warning lags behind and the like, according to the scheme, grinding power frequency spectrum, acoustic emission signals, triaxial vibration and coolant mass spectrum data are collected in real time through a multi-source sensing unit, and a micron-sized temperature field is reconstructed in combination with an edge end space-time diagram convolutional network; full-dimensional monitoring of the grinding thermal-mechanical coupling effect is achieved, and thermal anomaly recognition sensitivity and early warning timeliness are remarkably improved.

The invention relates to the technical field of pipe inner wall polishing, in particular to a plastic pipe inner wall polishing device. Comprising a sliding ring slidably arranged on a mounting cylinder, the right side of the sliding ring is connected with an air inflation bag, the right end of the air inflation bag is connected with the mounting cylinder, a fixedly-arranged second electric push rod and a slidably-arranged air pump are further fixedly mounted on the mounting cylinder, and the telescopic end of the second electric push rod is connected with the sliding ring. And a connecting pipe is communicated between an air outlet of the air pump and the inflatable bag. The movable part, the telescopic polishing block and the concentration mechanism are arranged and jointly assist to achieve adaptive adjustment of different pipe diameters, in addition, the inwards-concave inflatable bag is designed, so that the pipeline is adjusted and attached in a matched mode, abrasive dust is efficiently pushed out, the flexibility and adaptability of the equipment are enhanced, and the service life of the equipment is prolonged. And cleaning and polishing are integrated, so that the device can be operated more easily, and the overall using effect and working efficiency of the device are improved.

A production processing device for a regenerated neodymium-iron-boron magnet, specifically relating to the technical field of magnet grinding. The device comprises two device supports (1), two rotating shafts (11) being provided between the two device supports (1); the outer surfaces of the two rotating shafts (11) are both provided with chain wheels (12), a transmission chain (13) being connected between the two chain wheels (12); a plurality of clamping mechanisms (2) arranged in an array are provided outside the transmission chain (13); the right sides of two ends, i.e. the upper and lower ends, of the device support (1) located behind are both provided with control mechanisms (3) adaptive to the clamping mechanisms, the upper end of the control mechanism (3) located above being provided with a feeding device (4); the middle portions of the upper ends of the two device supports (1) are both provided with first supporting blocks (16), grinding wheels (17) being provided at the ends of the two first supporting blocks close to each other. Using the design in which the clamping mechanisms and the control mechanisms fit each other improves the applicability in use of the production processing device for a regenerated neodymium-iron-boron magnet, and using the design in which the control mechanisms and the feeding device fit each other improves the convenience in use of said device.

The invention discloses a pipe polishing device for landscaping engineering construction, and particularly relates to the technical field of pipeline machining device.The pipe polishing device comprises a machine table, and the output end of an electric telescopic rod penetrates through the upper end of a supporting frame, extends to the lower end of the horizontal part of the supporting frame and is fixedly connected with a polishing structure slidably connected with the vertical part of the supporting frame; a clamping supporting structure is arranged in the middle of the upper end of the machine table. According to the pipe polishing device for landscaping engineering construction, the supporting assembly is mainly used for assisting third driving motors on the two sides and the polishing assembly to support a pipeline, and meanwhile the two sides of the pipeline are polished through cooperation of the clamping assembly and the polishing structure; the driving assemblies on the two sides follow the action of the grinding structure to drive the clamping assemblies to act so as to support the inner wall of the pipeline, the surface of the pipeline is ground through the cooperation effect of the grinding structure and the sliding support, the pipeline is prevented from shaking through the action of the clamping assemblies, and the grinding precision and the grinding effect are 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 sleeve grinding, and discloses cast steel sleeve precise grinding equipment which comprises a grinding wheel grinding mechanism, a chuck is installed below the grinding wheel grinding mechanism, a plurality of clamping jaws are installed in the chuck, and the tops of the clamping jaws do not exceed the upper surface of the chuck. An outer clamping jaw away from the circle center of the chuck and an inner supporting jaw close to the circle center of the chuck are installed on the surfaces of the clamping jaws correspondingly, a transmission range extending piece capable of enabling the outer clamping jaw and the inner supporting jaw to do range extending motion is installed on the surface of each clamping jaw, and rack limiting pieces used for limiting the outer clamping jaw and the inner supporting jaw to do one-way range extending motion are installed on the inner wall of the chuck. Through the design of the outer clamping jaw and the inner supporting jaw, compatibility of outer wall polishing and inner wall polishing in the same working procedure is achieved, compared with a traditional single inner supporting or outer clamping mode, the problem of polishing blind areas caused by clamp occupying is avoided, it is ensured that the inner wall and the outer wall of the cast steel sleeve can be completely machined at a time, two-time clamping is not needed, and the machining efficiency is improved. And the processing efficiency and the integrity are obviously improved.

The invention belongs to the technical field of shaft measurement, and particularly relates to an automobile shaft rod surface detection device which comprises a base and a controller arranged above the base, a polishing mechanism is arranged above the base, a polishing table is arranged below the base, and the polishing table is provided with a lead screw assembly used for driving the base to move. A clamping mechanism used for clamping a shaft rod is installed on the end face of the grinding table, the clamping mechanism can drive the shaft rod to rotate, the grinding device further comprises a side plate, the side plate is arranged above the base, the base and the side plate are jointly provided with a position adjusting mechanism, and the controller is fixedly connected with the side wall of the side plate. By means of the intelligent sensing structure, the position of the grinding mechanism can be automatically adjusted in the grinding process, stable and appropriate grinding pressure on the shaft rod is maintained, meanwhile, whether the grinding efficiency of the grinding mechanism meets use or not can be judged based on the contour of the shaft rod, cooling of the grinding position can be assisted, and stable grinding work is facilitated.

A grinding device for manufacturing a valve, comprising a machine box. Grinding wheels used for grinding are arranged above the machine box. The grinding wheels are installed on transmission shafts and the transmission shafts are transmittingly connected to a driving motor which provides power for rotation of the grinding wheels. A grinding positioning assembly is arranged on one side of each of the grinding wheels, and the grinding positioning assemblies can support a plurality of blank bars to be ground at the same time. Each grinding positioning assembly comprises a first bottom plate, a first curved plate is provided at the end of the first bottom plate proximate to the corresponding grinding wheel, a discharge slot is formed on the first curved plate, an inclined first fixed plate is connected to the upper end of the first curved plate, fixed blocking plates are arranged on the two sides of the first bottom plate, respectively, and a first supporting shaft and a second supporting shaft are arranged between the two fixed blocking plates. According to the present invention, a plurality of blank bars can be ground at the same time, the grinding efficiency is high, and operators are prevented from being hurt in a grinding process.

The invention discloses a follow-up type superhard grinding wheel outer circle reciprocating grinding force measuring device and method, relates to the technical field of grinding machining, and solves the problem that grinding force follow-up measurement in a reciprocating grinding mode cannot be achieved in grinding force measurement in the prior art. The device comprises a driving tool, wherein the driving tool is used for clamping one end of a workpiece and driving the workpiece to rotate; a Z-axis moving assembly is fixedly arranged on the driving tool, a moving supporting table is arranged at the moving end of the Z-axis moving assembly, and the Z-axis moving assembly can drive the moving supporting table to move in the axial direction of the workpiece. A tangential telescopic measuring mechanism and a normal telescopic measuring mechanism which are perpendicular to each other are arranged on the movable supporting table, and the tangential telescopic measuring mechanism and the normal telescopic measuring mechanism can be in contact with the outer wall of the workpiece on the same normal plane perpendicular to the axis of the workpiece to measure force; the driving tool is adjustably provided with a Z-axis force measurement supporting tip, and the Z-axis force measurement supporting tip can be matched with the other end of the workpiece. Grinding force measurement in the reciprocating grinding machining process is achieved, and the grinding process can be monitored timely and accurately.

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.

The invention relates to the technical field of grinding equipment, in particular to flame-retardant cable protection pipe production and processing equipment and method.The flame-retardant cable protection pipe production and processing equipment comprises a support, a guide rod is fixedly assembled on the upper surface of the support, a sliding frame is slidably connected to the outer circumferential face of the guide rod, and a transmission shaft is rotatably connected into the sliding frame; a driving motor is fixedly assembled on the surface of the sliding frame, the output end of the driving motor is fixedly connected with a transmission shaft, a mounting ring is fixedly assembled on the outer circumferential surface of the transmission shaft, a grinding head is detachably mounted on the outer circumferential surface of the mounting ring, and a servo motor is fixedly assembled on the upper surface of the support; a lead screw is fixedly assembled at the output end of the servo motor. According to the device, the purging structure is arranged, when the inner wall of the flame-retardant cable protection pipe is polished, air exhausted by the spraying pipe can drive chippings to move, the chippings are discharged out of the protection pipe in time, and therefore the follow-up polishing effect of the polishing head on the protection pipe is guaranteed.

The invention relates to the technical field of automobile part machining, and particularly discloses a crankshaft machining optimization method and system.The method comprises the steps that a grinding force signal and a vibration signal in the grinding process are collected; grinding feature information is obtained according to the grinding force signal, and vibration feature information is obtained according to the vibration signal; material hardness information is generated according to the grinding feature information; grinding stability information is generated according to the grinding feature information and the vibration feature information; on the basis of a preset strategy library, parameter adjustment amount is generated according to the material hardness information and the grinding stability information, and the parameter adjustment amount comprises feeding speed adjustment amount and / or grinding depth adjustment amount; according to the method, a grinding force signal and a vibration signal which are acquired in real time based on a sensor are converted into quantitative information reflecting the material hardness and the grinding stability, and the parameter adjustment amount is dynamically generated according to the real-time information based on a preset strategy library, so that the effect of considering the machining efficiency and the stability is achieved.

The invention belongs to the technical field of grinding and polishing, and discloses automobile die pushing type positioning rod machining equipment which comprises a machine body, a mounting block is arranged at the top of the machine body, a moving mechanism is arranged at the bottom of one side of the mounting block, a grinding structure is arranged on one side of the moving mechanism, and two fixing plates are arranged at the top of the mounting block. The bottoms of the two fixing plates are slidably connected with the top of the mounting block, mounting rings are rotationally connected to the opposite sides of the two fixing plates, and a positioning rod is arranged between the close sides of the mounting rings. After the middle of the positioning rod is polished through the polishing structure, a first motor and a first electric push rod drive a mounting ring and a fixing plate to move, after the two ends of the positioning rod are exposed, a first transmission wheel and a second transmission wheel are engaged to enable the positioning rod to continue to rotate, and the two ends of the positioning rod can be polished by moving the polishing mechanism; and the end of the positioning rod can be ground without taking down the positioning rod, use is convenient, and the grinding and polishing efficiency can be improved conveniently.

The invention relates to the technical field of polishing, in particular to a pipe fitting inner wall polishing device which comprises a detection mechanism, the detection mechanism comprises a plurality of detection plates used for detecting whether protrusions or burrs exist on the inner wall of a pipe fitting or not, and one end of each detection plate is fixedly connected with a magnet vane; and one end of the magnetism isolating plate is fixedly connected with a first arc-shaped magnetic plate. The polishing mechanism carries out primary polishing through a first coarse polishing piece, further polishing is carried out through a first fine polishing piece before polishing is about to be completed, protrusions and burrs on the inner wall of the pipe fitting are gradually removed in this way from rough to fine, the rough condition of the polished surface is monitored in real time through a detection block in the detection mechanism in the polishing process, and when the polished surface is rough, the rough surface is detected. Polishing is conducted by increasing the polishing speed, then monitoring is continued, when it is monitored that the polishing piece is rough, it means that the polishing piece loses the polishing capacity, and therefore the standby polishing piece can be used for polishing.

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 steel pipe internal grinding machine with the synchronous grinding function comprises a workbench, fixed clamping mechanisms are symmetrically arranged on the two sides of the upper end of a first moving assembly symmetrically arranged in the middle of the upper end of the workbench, and installation adjusting assemblies are symmetrically arranged on the two sides of the upper end of a second moving assembly installed on the inner side of the middle of the upper end of the workbench; the outer side of the mounting adjusting assembly is connected with the second moving assembly through a driving assembly, and a polishing assembly is arranged on the side, close to the fixed clamping mechanism, of the mounting adjusting assembly. According to the steel pipe internal grinding machine with the synchronous grinding function, a second lead screw is driven to rotate through a second two-way motor, so that during machining, a mounting adjusting assembly and a grinding assembly which are symmetrically arranged on the two sides are synchronously driven to move towards one side of a steel pipe, and then a rotating rod is driven to rotate through a driving gear, a transmission assembly and a driving assembly; and the interiors of the two ends of the steel pipe are polished at the same time, and therefore the polishing machining efficiency is improved.

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 grinding machine for producing the roller forging and casting comprises a grinding machine tool body, a clamp used for fixing a roller is installed in the middle of the grinding machine tool body, a grinding assembly is installed at the position, corresponding to the roller, of the middle of the grinding machine tool body, and the grinding assembly can move front, back, left and right; a fixing frame is fixedly mounted at the top of the grinding assembly, a sliding frame is slidably mounted at the end, away from the grinding assembly, of the fixing frame, and a mounting frame is mounted at the bottom of the sliding frame. The inner ring of the extrusion frame extrudes the water absorption sponge, water in the water absorption sponge is extruded out, the water absorption sponge can absorb the water all the time, people can conveniently observe the grinding condition of the roller, and the position between the fixed frame and the sliding frame is adjusted, and the vertical position of the water absorption sponge is adjusted. The device is used for attaching the water-absorbing sponge to rollers with different diameters.

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 composite pipe assembly equipment, relates to the technical field of composite pipe assembly, and aims to solve the problems of poor forming quality and low production efficiency of a bimetal composite pipe caused by the fact that manual operation is needed and grinding and sleeving of an inner pipe and an outer pipe are carried out step by step when the bimetal composite pipe is assembled at present. Comprising a first grinding device, a second grinding device, a conveying device and an assembling device; wherein the conveying device is located between the first polishing device and the second polishing device, the conveying device comprises a conveying frame body and two parallel conveying rails, the conveying rails are movably arranged on the conveying frame body, and the moving directions of the two conveying rails are both perpendicular to the axial direction of the first pipe and the axial direction of the second pipe; the assembling device is provided with two ends which are located on the two opposite sides of the two conveying rails respectively, a pushing component is arranged on the assembling device, and the pushing component is used for pushing the first pipe and the second pipe which are located on the two conveying rails respectively in the axial direction of the first pipe and the second pipe, so that the first pipe and the second pipe are nested to form the composite pipe.

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 relates to the technical field of polishing devices, in particular to a multi-aperture bearing ring all-dimensional uniform polishing device which comprises a polishing table, a supporting plate is arranged at the top of the polishing table, a hydraulic rod is arranged at the bottom of the supporting plate, a polishing box is arranged at the movable end of the hydraulic rod, and a second screw is rotationally arranged in the polishing box. The other end of the second screw extends out of the grinding box and is provided with a rotating block, the pulling block is pulled outwards to drive the inserting rod to be disengaged from the inserting hole in the side wall of the grinding box, then the rotating block can be conveniently rotated, then the rotating block is rotated to drive the second screw to rotate, and a second threaded block outside the second screw is further driven to move. And the second motor can drive a grinding rod to work to comprehensively grind the outer ring and the inner ring of the multi-aperture bearing, and the situation that multiple devices are used for comprehensively grinding the outer ring and the inner ring of the multi-aperture bearing is avoided.

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.