Transmission part bearing polishing device and method based on positioning

Abstract

The invention belongs to the technical field of bearing polishing equipment, particularly relates to a transmission part bearing polishing device and method based on positioning, and provides the following scheme aiming at the problem that the polishing efficiency and precision can be influenced by changing the fixed position of an existing transmission part bearing polishing device during polishing: the transmission part bearing polishing device comprises a bearing platform; the bearing body is positioned above the bearing platform; and one ends of the three brackets are fixedly connected with the exterior of the bearing platform, and the other ends of the three brackets are fixedly connected with the same movable ring. According to the transmission part bearing polishing device and method based on positioning, the device can achieve quick bidirectional switching and fixing on the outer portion and the inner wall of a bearing body, and therefore the bearing body is always in a fixed state in the process that the device polishes the bearing body; and the time for switching the fixing position of the device is greatly shortened, the positioning accuracy of the bearing body is improved, disturbance to the position of the bearing body is avoided, and the grinding accuracy is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing grinding equipment, and in particular to a positioning-based transmission part bearing grinding device and method. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure their rotation accuracy. According to the different friction properties of the moving elements, bearings can be divided into two categories: rolling bearings and sliding bearings. Rolling bearings generally consist of four parts: outer ring, inner ring, rolling elements and cage.

[0003] Before the transmission bearing grinding device starts grinding, due to the need to grind the outer and inner walls of the bearing, the fixed point needs to be changed to avoid interference with the grinding. However, changing the fixed position usually takes a long time, resulting in a long downtime of the device's grinding process, and will cause disturbances to the position of the bearing in the device, affecting the efficiency and accuracy of the grinding. Summary of the Invention

[0004] The present invention discloses a positioning-based transmission bearing grinding device and method, aiming to solve the technical problem in the background art that the changing of the fixed position of the current transmission bearing grinding device during grinding affects the grinding efficiency and precision.

[0005] The present invention proposes a positioning-based transmission bearing grinding device, comprising: platform; A bearing body, the bearing body being located above the bearing platform; Three brackets, one end of each of the three brackets is fixedly connected to the outside of the bearing base, and the other end is fixedly connected to the same movable ring, a grinding head is provided below the movable ring, and the grinding head is located outside the bearing body; A support frame, the upper side of which is fixedly connected to the bottom of the platform; A dual-system fixed switching module is located on the support platform, outside the bearing body, and is used to quickly switch the fixed position of the bearing body in the device when the bearing body is polished.

[0006] In a preferred solution, the dual-system fixed switching module includes a supporting platform, a circular hole is provided on the supporting platform, the supporting platform is located in the circular hole, a circular groove is provided on the supporting platform, a fixed tube is fixedly connected to the inner wall of the circular groove, the upper side of the supporting platform is fitted with the bottom of the bearing body, a threaded rod is movably connected to the bottom inner wall of the fixed tube, the upper side of the threaded rod is fixedly connected to gear 1, the bottom of gear 1 is movably connected to the upper side of the fixed tube, and a transmission block is provided on the outside of the threaded rod, three circumferentially equidistant grooves are provided on the outside of the fixed tube, the outside of the transmission block is slidably connected to the inner wall of the groove, and the outside of the transmission block is movably connected with three circumferentially equidistant push-pull gears. Rod; The three push-pull rods are movably connected to the contact block at one end away from the transmission block, and three circumferentially equidistant sliding grooves are opened on the upper side of the supporting platform. The inner walls of the sliding grooves are slidably connected to the bottom of the contact block on the same side, and the outside of the contact block is fixedly connected to a rubber pad 1, and the outside of the rubber pad 1 fits the inner wall of the bearing body, and the upper side of the gear 1 is fixedly connected to a handle; the outside of the fixed tube is fixedly connected to a accommodating ring, and the outside of the gear 1 is clamped with a positioning ring, the inner wall of the positioning ring is slidably connected to the outside of the fixed tube, and the outside of the positioning ring is slidably connected to the inner wall of the accommodating ring, and the bottom of the positioning ring is fixedly connected to a spring 1, and the spring 1 is away from the positioning ring One end is fixedly connected to the bottom inner wall of the accommodating ring, and two symmetrical rectangular grooves are provided on the outside of the accommodating ring, and a paddle is slidably connected in the rectangular grooves, and the paddle is fixedly connected to the side opposite to the outside of the positioning ring; the upper side of the base is fixedly connected to an annular seat, which is located on the outside of the bearing body, and the outside of the annular seat is provided with three rectangular holes equidistantly distributed around the circumference, and guide rods are slidably connected in the rectangular holes, and the guide rods are fixedly connected to a top block on the side close to the bearing body, and a rubber pad 2 is fixedly connected to the outside of the top block, and a spring 2 is surrounded on the outside of the guide rod, and one end of the spring 2 is fixedly connected to the outside of the annular seat, and the other end They are all fixedly connected to the outside of the guide rod on the same side, and the bottom of the fixed tube is fixedly connected to a pillar; the bottom of the pillar is fixedly connected to a load-bearing frame, and the upper side of the load-bearing frame is fixedly connected to the bottom of the base, and the outside of the three guide rods is provided with a transmission plate, and a rectangular opening is opened on the transmission plate, and the inner wall of the rectangular opening is slidably connected to the outside of the guide rod, and the end of the transmission plate away from the guide rod is movably connected to the outside of the pillar, and three hydraulic rods 1 distributed equidistantly around the circumference are fixedly connected to the load-bearing frame, and the output end of the hydraulic rod 1 is fixedly connected to a push block, and the outside of the push block is in contact with the outside of the transmission plate on the same side, and a controllable grinding module is provided on the movable ring.

[0007] In a preferred embodiment, the controllable grinding module includes an outer gear ring, the inner wall of the outer gear ring is fixedly connected to the outside of the movable ring, the outside of the movable ring is slidably connected to a movable platform, a slot is provided on the movable platform, the inner wall of the slot is fixedly connected to a driving motor 1, the output end of the driving motor 1 is connected to a gear 2 through a coupling, the gear 2 is meshed with the outer gear ring, and a sliding groove is provided on the movable platform, a sliding seat is slidably connected in the sliding groove, an orifice is provided on the sliding seat, and a hydraulic rod 2 is fixedly connected to the inner wall of the orifice; the output end of the hydraulic rod 2 is fixedly connected to an isolation cover, the top inner wall of the isolation cover is fixedly connected to a rotating motor, the output end of the rotating motor is connected to the upper side of the grinding head through a coupling, and the outer fixed end of the movable platform The cam is fixedly connected to the cam, and a winding roller is movably connected to the cam. A steel wire rope is fixedly connected to the outside of the winding roller, and an end of the steel wire rope away from the winding roller is fixedly connected to the outside of the sliding seat, and the outside of the cam is fixedly connected to drive motor 2, and the output end of drive motor 2 is connected to one side of the winding roller through a coupling; a folding rod 1 is movably connected to the upper side of the movable platform, and a notch is provided at the end of the folding rod 1 away from the movable platform, and a round rod is movably connected in the notch, and a folding rod 2 is movably connected to the outside of the round rod, and an end of the folding rod 2 away from the round rod is movably connected to the outside of the sliding seat, and a torsion spring is provided on the outside of the round rod, and one end of the torsion spring is fixedly connected to the outside of the folding rod 1, and the other end is fixedly connected to the outside of the folding rod 2.

[0008] A positioning-based transmission bearing grinding method, using the positioning-based transmission bearing grinding device described above, comprises the following steps: Step 1: Place the bearing body to be polished on the support table and use the dual-system fixing switching module to fix the inner wall of the bearing body; Step 2: Start the grinding head and use the controllable grinding module to drive the grinding head to grind the outside of the bearing body. After the external grinding is completed, use the dual-system fixed switching module again to fix the outside of the bearing body while ensuring that the inner wall of the bearing body is fixed. After the external fixation is completed, release the fixation of the inner wall of the bearing body and use the grinding head again to grind the inner wall of the bearing body.

[0009] From the above, it can be seen that the positioning-based transmission bearing grinding device provided by the present invention has the ability to enable the device to achieve rapid two-way switching and fixing of the outer and inner walls of the bearing body, so that during the process of grinding the bearing body, the bearing body is always in a fixed state, greatly reducing the time for the device to switch the fixed position, improving the positioning accuracy of the bearing body, avoiding disturbance of the position of the bearing body, and ensuring the accuracy of grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of a positioning-based transmission bearing grinding device proposed by the present invention; Figure 2 This is a schematic cross-sectional view of a positioning-based transmission bearing grinding device proposed by the present invention; Figure 3 This is a schematic structural diagram of a dual-system fixed switching module of a positioning-based transmission bearing grinding device proposed by the present invention; Figure 4 This is a schematic diagram of the fixed tube structure of a positioning-based transmission bearing grinding device proposed by the present invention; Figure 5 This is a schematic diagram of the structure of a receiving ring of a positioning-based transmission bearing grinding device proposed by the present invention; Figure 6 This is a schematic diagram of the support structure of a positioning-based transmission bearing grinding device proposed by the present invention; Figure 7 This is a schematic structural diagram of a controllable grinding module of a positioning-based transmission bearing grinding device proposed by the present invention; Figure 8 This is a schematic diagram of the movable table structure of a positioning-based transmission bearing grinding device proposed by the present invention.

[0011] In the figure: 1, support platform; 2, bearing body; 3, bracket; 4, movable ring; 5, grinding head; 6, support frame; 7, dual-system fixed switching module; 701, support platform; 702, fixed tube; 703, threaded rod; 704, transmission block; 705, push-pull rod; 706, slide groove; 707, contact block; 708, rubber pad 1; 709, receiving ring; 710, gear 1; 711, handle; 712, locking ring; 713, spring 1; 714, rectangular groove; 715, annular seat; 716, guide rod; 717, spring 2; 718, Top block; 719, rubber pad 2; 720, pillar; 721, transmission plate; 722, rectangular opening; 723, load-bearing frame; 724, hydraulic rod 1; 725, pushing block; 8, controllable grinding module; 801, outer gear ring; 802, movable table; 803, gear 2; 804, drive motor 1; 805, sliding seat; 806, hydraulic rod 2; 807, isolation cover; 808, rotating motor; 809, folding rod 1; 810, folding rod 2; 811, torsion spring; 812, winding roller; 813, wire rope; 814, drive motor 2. DETAILED DESCRIPTION

[0012] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0013] The transmission bearing grinding device based on positioning disclosed in the present invention is mainly used in scenarios where changing the fixed position of the current transmission bearing grinding device during grinding will affect the grinding efficiency and accuracy.

[0014] Reference Figures 1-8 , a transmission bearing grinding device based on positioning, comprising: Platform 1; The bearing body 2 is located above the bearing platform 1; Three brackets 3, one end of each of the three brackets 3 is connected to the outside of the bearing base 1 by bolts, and the other end is connected to the same movable ring 4 by bolts. A grinding head 5 is provided below the movable ring 4, and the grinding head 5 is located outside the bearing body 2; Support frame 6, the upper side of the support frame 6 is connected to the bottom of the platform 1 by bolts; The dual-system fixed switching module 7 is located on the base 1 and outside the bearing body 2. The dual-system fixed switching module 7 is used to quickly switch the fixed position of the bearing body 2 in the device when the bearing body 2 is polished.

[0015] Specifically, the device utilizes a dual-system fixed switching module 7 to enable the device to realize rapid two-way switching and fixing on the outer and inner walls of the bearing body 2, so that during the process of grinding the bearing body 2, the bearing body 2 is always in a fixed state, which greatly reduces the time for the device to switch the fixed position, improves the positioning accuracy of the bearing body 2, avoids disturbance of the position of the bearing body 2, and ensures the accuracy of grinding.

[0016] Reference Figure 3 、 Figure 4 、 Figure 5 and Figure 6In a preferred embodiment, the dual-system fixed switching module 7 includes a supporting platform 701, a circular hole is opened on the supporting platform 1, the supporting platform 701 is located in the circular hole, a circular groove is opened on the supporting platform 701, and the inner wall of the circular groove is connected to the fixing tube 702 by bolts. The upper side of the supporting platform 701 is in contact with the bottom of the bearing body 2, and the inner wall of the bottom of the fixing tube 702 is rotatably connected to the threaded rod 703 through the bearing. The upper side of the threaded rod 703 is connected to the gear 1 710 by bolts. The bottom of the gear 1 710 is rotatably connected to the upper side of the fixing tube 702 through the bearing, and a transmission block 704 is provided on the outside of the threaded rod 703. The outside of the fixing tube 702 is opened with three circumferentially equidistant teeth. The outer parts of the transmission blocks 704 are all slidably connected to the inner walls of the grooves. The outer parts of the transmission blocks 704 are rotatably connected to three push-pull rods 705 equidistantly distributed around the circumference through bearings. The ends of the three push-pull rods 705 away from the transmission blocks 704 are rotatably connected to contact blocks 707 through bearings. The upper side of the support platform 701 is provided with three circumferentially equidistantly distributed sliding grooves 706. The inner walls of the sliding grooves 706 are slidably connected to the bottoms of the contact blocks 707 on the same side. The outer parts of the contact blocks 707 are all connected to rubber pads 708 through bolts. The outer parts of the rubber pads 708 are all in contact with the inner wall of the bearing body 2. The upper side of the gear 710 is connected to a handle 711 through bolts. The outside of the fixed tube 702 is connected to the accommodating ring 709 by bolts, and the outside of the gear 1 710 is clamped with a retaining ring 712. The inner wall of the retaining ring 712 is slidably connected to the outside of the fixed tube 702, and the outside of the retaining ring 712 is slidably connected to the inner wall of the accommodating ring 709. The bottom of the retaining ring 712 is connected to a spring 1 713 by bolts. The end of the spring 1 713 away from the retaining ring 712 is connected to the bottom inner wall of the accommodating ring 709 by bolts, and the outside of the accommodating ring 709 is provided with two symmetrical rectangular grooves 714, and the rectangular grooves 714 are slidably connected with a paddle, and the paddle is connected to the opposite side of the outer side of the retaining ring 712 by bolts; the upper side of the base 1 An annular seat 715 is connected by bolts. The annular seat 715 is located outside the bearing body 2. Three rectangular holes are opened on the outside of the annular seat 715 at equal distances from the circumference. Guide rods 716 are slidably connected in each of the rectangular holes. The side of the guide rods 716 close to the bearing body 2 is connected by bolts to a top block 718. The outside of the top block 718 is connected by bolts to a second rubber pad 719. The outside of the guide rods 716 is surrounded by a second spring 717. One end of the second spring 717 is connected to the outside of the annular seat 715 by bolts, and the other end is connected to the outside of the guide rod 716 on the same side by bolts. The bottom of the fixed tube 702 is connected to a support 720 by bolts.The bottom of the pillar 720 is bolted to a load-bearing frame 723. The upper side of the load-bearing frame 723 is bolted to the bottom of the platform 1. A transmission plate 721 is provided on the exterior of each of the three guide rods 716. Each transmission plate 721 has a rectangular opening 722, the inner wall of which is slidably connected to the exterior of the guide rod 716. The end of the transmission plate 721, away from the guide rod 716, is rotatably connected to the exterior of the pillar 720 via a bearing. Three circumferentially equidistant hydraulic rods 724 are bolted to the load-bearing frame 723. The output ends of the hydraulic rods 724 are bolted to push blocks 725. The exterior of each push block 725 contacts the exterior of the transmission plate 721 on the same side. A controllable grinding module 8 is provided on the movable ring 4.

[0017] In a specific application scenario, the dual-system fixed switching module 7 is mainly suitable for the dual-system fixed switching link in the dual-system fixed switching process, that is, the dual-system fixed switching module 7 uses the transmission block 704, the push-pull rod 705, the transmission plate 721, and the guide rod 716 to quickly and conveniently complete the switching of the device to the inner wall and outer fixing mode of the bearing body 2, so that when the device needs to grind the outer and inner walls of the bearing body 2, the bearing body 2 is always in a fixed state, thereby reducing the interference of the generated offset on the grinding accuracy and ensuring the concentricity of the inner and outer rings of the bearing body 2; using the gear 1 710 and the retaining ring 712, the contact block 707 and the rubber pad 1 708 can provide sufficient force for the bearing body 2 after being fitted with the inner wall of the bearing body 2 to resist the friction caused by the grinding head 5 on the outside of the bearing body 2 during grinding, thereby avoiding the bearing body 2 from rotating with the grinding of the grinding head 5, thereby improving the grinding effect.

[0018] Reference Figure 7 and Figure 8In a preferred embodiment, the controllable grinding module 8 includes an outer gear ring 801, the inner wall of the outer gear ring 801 is connected to the outside of the movable ring 4 by bolts, the outside of the movable ring 4 is slidably connected to a movable platform 802, a slot is provided on the movable platform 802, the inner wall of the slot is connected to a drive motor 1 804 by bolts, the output end of the drive motor 1 804 is connected to a gear 2 803 through a coupling, the gear 2 803 is meshed with the outer gear ring 801, and a sliding groove is provided on the movable platform 802, a sliding seat 805 is slidably connected in the sliding groove, the sliding seat 805 is provided with an orifice, and the inner wall of the orifice is connected to a hydraulic rod 2 806 by bolts; the output end of the hydraulic rod 2 806 is connected to an isolation cover 807 by bolts, the top inner wall of the isolation cover 807 is connected to a rotating motor 808 by bolts, the output end of the rotating motor 808 is connected to the upper side of the grinding head 5 by a coupling, the outside of the movable platform 802 is connected to a convex seat by bolts, The seat is rotatably connected to a winding roller 812 through a bearing, and the outside of the winding roller 812 is connected to a wire rope 813 through bolts. The end of the wire rope 813 away from the winding roller 812 is connected to the outside of the sliding seat 805 through bolts, and the outside of the protruding seat is connected to a driving motor 2 814 through bolts, and the output end of the driving motor 2 814 is connected to one side of the winding roller 812 through a coupling; the upper side of the movable platform 802 is rotatably connected to a folding rod 1 809 through a bearing, and a notch is provided at the end of the folding rod 1 809 away from the movable platform 802, and a round rod is rotatably connected in the notch through a bearing, and the outside of the round rod is rotatably connected to a folding rod 2 810 through a bearing, and the end of the folding rod 2 810 away from the round rod is rotatably connected to the outside of the sliding seat 805 through a bearing, and a torsion spring 811 is provided on the outside of the round rod, and one end of the torsion spring 811 is connected to the outside of the folding rod 1 809 through bolts, and the other end is connected to the outside of the folding rod 2 810 through bolts.

[0019] In specific application scenarios, the controllable grinding module 8 is mainly suitable for the controllable grinding link in the controllable grinding process, that is, the controllable grinding module 8 uses gear 2 803 and the outer gear ring 801 to make the movable platform 802 move in a circle along the movable ring 4, so that the grinding head 5 can grind the bearing body 2 at a uniform speed, thereby improving the uniformity of grinding. The force control system formed by the winding roller 812, the wire rope 813, the folding rod 1 809, the torsion spring 811 and the folding rod 2 810 allows the grinding head 5 to control the grinding amplitude according to the surface condition of the bearing body 2 during grinding, thereby ensuring the quality of grinding.

[0020] A positioning-based transmission bearing grinding method, using the positioning-based transmission bearing grinding device described above, comprises the following steps: Step 1: Place the bearing body 2 to be polished on the support platform 701, and use the dual-system fixing switching module 7 to fix the inner wall of the bearing body 2 (before the polishing head 5 polishes the outside of the bearing body 2, place the bearing body 2 on the support platform 701, overcome the elastic force of the spring 1 713, press the retaining ring 712 downward, and turn the handle 711. The handle 711 drives the threaded rod 703 connected to the gear 1 710 to rotate, so that the transmission block 704 moves downward and drives the push-pull rod 705 to push the rubber pad 1 708 on the contact block 707 to the inner wall of the bearing body 2. Loosen the retaining ring 712 so that the retaining ring 712 locks the gear 1 710, thereby completing the fixation of the bearing body 2); Step 2: Start the grinding head 5 and use the controllable grinding module 8 to drive the grinding head 5 to grind the outside of the bearing body 2. After the outside grinding is completed, use the dual-system fixed switching module 7 again to fix the outside of the bearing body 2 while ensuring that the inner wall of the bearing body 2 is fixed. After the outside fixation is completed, release the fixation of the inner wall of the bearing body 2 and use the grinding head 5 to grind the inner wall of the bearing body 2 again (after the grinding head 5 finishes grinding the outside of the bearing body 2, remove the grinding head 5 and start the hydraulic rod 724. The output end of the hydraulic rod 724 extends to push the The movable block 725 pushes the transmission plate 721 to rotate in the direction of the bearing body 2, thereby driving the top block 718 in contact with it to overcome the pulling force of the spring 2 717 and approach the bearing body 2, and finally makes the rubber pad 2 719 on the top block 718 close to the outside of the bearing body 2 and fix the bearing body 2. After the fixation is completed, the above steps are reversed to release the state in which the contact block 707 and the rubber pad 1 708 are fixed to the inner wall of the bearing body 2, and the contact block 707 is restored to its original position. The inner wall of the bearing body 2 is polished using the polishing head 5. Before grinding, start the hydraulic rod 2 806, which drives the grinding head 5 to rise or fall, so that the grinding head 5 can be placed inside or outside the bearing body 2, start the drive motor 2 814, and drive the winding roller 812 to rotate, so as to achieve the winding of the wire rope 813, so that the sliding seat 805 drives the grinding head 5 to approach the inner wall of the bearing body 2, and the sliding seat 805 pushes the folding rod 2 810, so that the folding rod 2 810 overcomes the torsion force of the torsion spring 811 and folds toward the folding rod 1 809, and starts the rotating motor 808, which drives the rotating motor 808 to rotate. The movable grinding head 5 rotates and starts to grind the inner wall of the bearing body 2, and the drive motor 804 is started. The drive motor 804 drives the gear 2 803 engaged with the outer gear ring 801 to rotate, so that the movable platform 802 moves in a circular motion along the movable ring 4, so that the grinding head 5 can grind the entire inner wall of the bearing body 2. The above steps are reversed to grind the outside of the bearing body 2. During grinding, the thrust of the torsion spring 811 on the sliding seat 805 is controlled by winding or releasing the wire rope 813, thereby controlling the grinding depth of the grinding head 5 on the bearing body 2).

[0021] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A positioning-based transmission bearing grinding device, characterized in that: include: Platform (1); A bearing body (2), the bearing body (2) being located above the support platform (1); Three brackets (3), one end of each of the three brackets (3) is fixedly connected to the outside of the support platform (1), and the other end is fixedly connected to the same movable ring (4), a grinding head (5) is provided below the movable ring (4), and the grinding head (5) is located outside the bearing body (2); A support frame (6), the upper side of the support frame (6) being fixedly connected to the bottom of the support platform (1); A dual-system fixed switching module (7) is located on the support platform (1) and outside the bearing body (2). The dual-system fixed switching module (7) is used to quickly switch the fixed position of the bearing body (2) in the device when the bearing body (2) is polished.

2. A positioning-based transmission bearing grinding device according to claim 1, characterized in that: The dual-system fixed switching module (7) includes a supporting platform (701), a circular hole is provided on the supporting platform (1), the supporting platform (701) is located in the circular hole, a circular groove is provided on the supporting platform (701), a fixed tube (702) is fixedly connected to the inner wall of the circular groove, the upper side of the supporting platform (701) is fitted with the bottom of the bearing body (2), the bottom inner wall of the fixed tube (702) is movably connected to a threaded rod (703), the upper side of the threaded rod (703) is fixedly connected to a gear 1 (710), the bottom of the gear 1 (710) is movably connected to the upper side of the fixed tube (702), and a transmission block (704) is provided on the outside of the threaded rod (703), three circumferentially equidistantly distributed grooves are provided on the outside of the fixed tube (702), the outside of the transmission block (704) is slidably connected to the inner wall of the groove, and the outside of the transmission block (704) is movably connected to three circumferentially equidistantly distributed push-pull rods (705).

3. The positioning-based transmission bearing grinding device according to claim 2, characterized in that: The three push-pull rods (705) are movably connected to the contact block (707) at one end away from the transmission block (704), and three circumferentially equidistantly distributed sliding grooves (706) are provided on the upper side of the support platform (701). The inner walls of the sliding grooves (706) are slidably connected to the bottom of the contact block (707) on the same side, and the outside of the contact block (707) is fixedly connected to a rubber pad (708). The outside of the rubber pad (708) is fitted with the inner wall of the bearing body (2), and the upper side of the gear (710) is fixedly connected to a handle (711).

4. The positioning-based transmission bearing grinding device according to claim 3, characterized in that: The exterior of the fixed tube (702) is fixedly connected to a receiving ring (709), the exterior of the gear 1 (710) is clamped to a retaining ring (712), the inner wall of the retaining ring (712) is slidably connected to the exterior of the fixed tube (702), the exterior of the retaining ring (712) is slidably connected to the inner wall of the receiving ring (709), the bottom of the retaining ring (712) is fixedly connected to a spring 1 (713), one end of the spring 1 (713) away from the retaining ring (712) is fixedly connected to the bottom inner wall of the receiving ring (709), and the exterior of the receiving ring (709) is provided with two symmetrical rectangular grooves (714), each of which is slidably connected to a paddle, and the paddle is fixedly connected to the side opposite to the exterior of the retaining ring (712).

5. The positioning-based transmission bearing grinding device according to claim 4, characterized in that: The upper side of the support platform (1) is fixedly connected to an annular seat (715), which is located outside the bearing body (2). Three rectangular holes are opened on the outside of the annular seat (715) and are equidistantly distributed around the circumference. Guide rods (716) are slidably connected in the rectangular holes. A top block (718) is fixedly connected to the side of the guide rod (716) close to the bearing body (2). A second rubber pad (719) is fixedly connected to the outside of the top block (718). A second spring (717) surrounds the outside of the guide rod (716). One end of the second spring (717) is fixedly connected to the outside of the annular seat (715), and the other end is fixedly connected to the outside of the guide rod (716) on the same side. A support (720) is fixedly connected to the bottom of the fixed tube (702).

6. The positioning-based transmission bearing grinding device according to claim 5, characterized in that: The bottom of the pillar (720) is fixedly connected to a load-bearing frame (723), the upper side of the load-bearing frame (723) is fixedly connected to the bottom of the support platform (1), and the outside of the three guide rods (716) is provided with a transmission plate (721), and the transmission plate (721) is provided with a rectangular opening (722), and the inner wall of the rectangular opening (722) is slidably connected to the outside of the guide rod (716), and the end of the transmission plate (721) away from the guide rod (716) is movably connected to the outside of the pillar (720), and three hydraulic rods (724) with equal distances around the circumference are fixedly connected to the load-bearing frame (723), and the output end of the hydraulic rod (724) is fixedly connected to a push block (725), and the outside of the push block (725) is in contact with the outside of the transmission plate (721) on the same side. A controllable grinding module (8) is provided on the movable ring (4).

7. The positioning-based transmission bearing grinding device according to claim 6, characterized in that: The controllable grinding module (8) includes an outer gear ring (801), the inner wall of the outer gear ring (801) is fixedly connected to the outside of the movable ring (4), the outside of the movable ring (4) is slidably connected to a movable platform (802), a slot is provided on the movable platform (802), a driving motor 1 (804) is fixedly connected to the inner wall of the slot, the output end of the driving motor 1 (804) is connected to a gear 2 (803) through a coupling, the gear 2 (803) is meshed with the outer gear ring (801), and a sliding groove is provided on the movable platform (802), a sliding seat (805) is slidably connected in the sliding groove, an orifice is provided on the sliding seat (805), and a hydraulic rod 2 (806) is fixedly connected to the inner wall of the orifice.

8. The positioning-based transmission bearing grinding device according to claim 7, characterized in that: The output end of the second hydraulic rod (806) is fixedly connected to an isolation cover (807), the top inner wall of the isolation cover (807) is fixedly connected to a rotating motor (808), the output end of the rotating motor (808) is connected to the upper side of the grinding head (5) through a coupling, the outside of the movable table (802) is fixedly connected to a convex seat, a winding roller (812) is movably connected to the convex seat, the outside of the winding roller (812) is fixedly connected to a wire rope (813), one end of the wire rope (813) away from the winding roller (812) is fixedly connected to the outside of the sliding seat (805), and the outside of the convex seat is fixedly connected to a second driving motor (814), and the output end of the second driving motor (814) is connected to one side of the winding roller (812) through a coupling.

9. The positioning-based transmission bearing grinding device according to claim 8, characterized in that: The upper side of the movable platform (802) is movably connected to a folding rod 1 (809), and a notch is provided at one end of the folding rod 1 (809) away from the movable platform (802). A round rod is movably connected in the notch, and a folding rod 2 (810) is movably connected to the outside of the round rod. The end of the folding rod 2 (810) away from the round rod is movably connected to the outside of the sliding seat (805), and a torsion spring (811) is provided on the outside of the round rod. One end of the torsion spring (811) is fixedly connected to the outside of the folding rod 1 (809), and the other end is fixedly connected to the outside of the folding rod 2 (810).

10. A positioning-based transmission bearing grinding method, using the positioning-based transmission bearing grinding device according to claim 9, characterized in that: The steps include: Step 1: Place the bearing body (2) to be polished on the support platform (701), and use the dual-system fixing switching module (7) to fix the inner wall of the bearing body (2); Step 2: Start the grinding head (5), use the controllable grinding module (8) to drive the grinding head (5) to grind the outside of the bearing body (2), and after the grinding of the outside is completed, use the dual-system fixed switching module (7) again to fix the outside of the bearing body (2) while ensuring that the inner wall of the bearing body (2) is fixed. After the external fixation is completed, release the fixation of the inner wall of the bearing body (2), and use the grinding head (5) again to grind the inner wall of the bearing body (2).

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