A polishing device for a motorcycle wheel hub

Abstract

The application discloses a polishing device for a motorcycle wheel hub, characterized in that the device comprises a base, a support frame connected to the upper portion of the base, a sleeve installed on the support frame, a support rod connected to the lower portion of the sleeve, a motor one arranged on the lower portion of the sleeve, a guide sleeve installed on the side surface of the motor one, the guide sleeve being sleeved on the support rod, a driving shaft drivenly connected to the motor one, a support block connected to the upper end of the driving shaft, a positioning shaft connected to the upper portion of the support block, a spiral guide groove arranged on the sleeve, and the driving shaft being arranged through the sleeve.

Description

Technical Field

[0001] This invention relates to the field of wheel hub manufacturing technology, and more specifically to a grinding device for motorcycle wheel hubs. Background Technology

[0002] Motorcycle wheel hubs, after being forged, have a rough surface that cannot be directly processed. They require surface finishing to achieve a smooth finish before further processing. Current polishing methods involve placing the wheel hub on a polishing table and manually polishing it using a grinding gun, abrasive, and sandpaper. This method is inefficient and unsuitable for mass production. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a grinding device for motorcycle wheel hubs.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A grinding device for motorcycle wheel hubs includes a base, a support frame connected to the upper part of the base, a sleeve mounted on the support frame, a support rod connected to the lower part of the sleeve, a motor located at the lower part of the sleeve, a guide sleeve mounted on the side of the motor, the guide sleeve being fitted onto the support rod, a drive shaft driven by the motor, a support block connected to the upper end of the drive shaft, a positioning shaft connected to the upper part of the support block, a spiral guide groove formed on the sleeve, the drive shaft passing through the sleeve, a guide rod connected to the side of the drive shaft, the guide rod being positioned within the guide groove, and the support... A side grinding mechanism is installed on the column. The side grinding mechanism includes a support base connected to the inside of the support column. A rotating seat is provided on the upper part of the support base. A lead screw is rotatably installed on the rotating seat. A lead screw slider is provided on the lead screw. A mounting seat is connected to the upper part of the lead screw slider. A second motor is installed on the upper part of the mounting seat. The second motor is driven by a grinding wheel through a commutator. A driven pulley is connected to the end of the lead screw near the support column. A third motor is installed on the support column. The third motor is driven by a driving pulley. A transmission belt is connected between the driving pulley and the driven pulley.

[0006] Preferably, the guide groove includes several annular guide sections, and two adjacent annular guide sections are connected by a transition section.

[0007] Preferably, a mounting platform is provided at the lower part of the motor, and a spring connects the mounting platform and the base.

[0008] Preferably, the portion of the drive shaft located inside the sleeve is provided with a turntable, and balls are provided on the outer periphery of the turntable, with the balls contacting the inner wall of the sleeve.

[0009] Preferably, a support plate is provided between the sleeve and the support block, the drive shaft passes through the support plate, a plane bearing is installed at the bottom of the support plate, a spring is connected between the plane bearing and the sleeve, a retaining strip is connected at the bottom of the support block, and a groove that cooperates with the retaining strip is opened in the middle of the support plate.

[0010] Preferably, the lower part of the support plate has an annular groove, and the plane bearing is installed in the annular groove. The plane bearing includes an upper bearing ring and a lower bearing ring. The upper bearing ring is fixedly installed in the annular groove, and a fixing ring is installed at the lower part of the lower bearing ring. The upper end of the spring is connected to the lower part of the fixing ring.

[0011] Preferably, a groove is provided on the side wall of the annular groove, a stop block is provided in the groove, and a spring is connected between the inner side of the stop block and the inner wall of the groove.

[0012] Preferably, a support column is connected to the upper part of the base, a top plate is connected to the upper part of the support column, a hydraulic cylinder is installed on the upper part of the top plate, an mounting plate is connected to the piston rod of the hydraulic cylinder, a connecting rod is connected to the lower part of the mounting plate, and an end face grinding mechanism is installed at the lower part of the connecting rod.

[0013] Compared with the prior art, the beneficial effect of the present invention is that when the motorcycle wheel hub is rotated, it is driven to descend, thereby polishing the outer wall of the motorcycle wheel hub from bottom to top in a circle-by-circle manner, so as to ensure that all parts of the outer wall of the motorcycle wheel hub are effectively polished. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the sleeve of the present invention;

[0016] Figure 3 This is a schematic diagram of the side grinding mechanism in this invention;

[0017] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 5 This is a schematic diagram of the end face grinding mechanism in this invention.

[0019] Reference numerals: 1. Base; 2. Support column; 3. Support frame; 4. Support rod; 5. Spring 1; 6. Motor 1; 7. Mounting platform; 8. Guide sleeve; 9. Drive shaft; 10. Turntable; 11. Ball bearing; 12. Sleeve; 13. Guide rod; 14. Positioning cylinder; 15. Support plate; 16. Side grinding mechanism; 17. Top plate; 18. Hydraulic cylinder; 19. Mounting plate; 20. Connecting rod; 21. End face grinding mechanism; 22. Support block; 23. Positioning shaft; 24. Positioning groove; 25. Clamping strip; 26. Clamping slot; 27. Guide groove; 28. Annular guide section; 29. ​​Through 30. Support base; 31. Rotating base; 32. Lead screw; 33. Lead screw slider; 34. Mounting base; 35. Motor II; 36. Grinding wheel; 37. Motor III; 38. Driving pulley; 39. Driven pulley; 40. Transmission belt; 41. Ring groove; 42. Upper bearing ring; 43. Lower bearing ring; 44. Spring III; 45. Fixing ring; 46. Groove; 47. Spring IV; 48. Stop block; 49. Support plate; 50. Lifting plate; 51. Limiting rod; 52. Baffle; 53. Spring II; 54. Mounting groove; 55. Grinding block; 56. Locking block; 57. Positioning pin. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 The embodiments of the present invention will be described in detail.

[0021] A grinding device for motorcycle wheel hubs includes a base 1, a support frame 3 connected to the upper part of the base 1, a sleeve 12 mounted on the support frame 3, a support rod 4 connected to the lower part of the sleeve 12, a motor 6 mounted at the lower part of the sleeve 12, a guide sleeve 8 mounted on the side of the motor 6 and fitted onto the support rod 4, a drive shaft 9 driven by the motor 6, a support block 22 connected to the upper end of the drive shaft 9, a positioning shaft 23 connected to the upper part of the support block 22, a spiral guide groove 27 formed on the sleeve 12, the drive shaft 9 passing through the sleeve 12, a guide rod 13 connected to the side of the drive shaft 9 and disposed within the guide groove 27, and a side grinding mechanism 16 mounted on the support column 2. The side grinding mechanism 16 includes a support seat 30 connected to the inner side of the support column 2. A rotating seat 31 is provided on the upper part of the support seat 30. A lead screw 32 is rotatably provided on the rotating seat 31. A lead screw slider 33 is provided on the lead screw 32. A mounting seat 34 is connected to the upper part of the lead screw slider 33. A second motor 35 is mounted on the upper part of the mounting seat 34. The second motor 35 is driven and connected to a grinding wheel 36 through a commutator. The grinding wheel 36 is positioned facing the positioning shaft 23. A driven pulley 39 is connected to the end of the lead screw 32 near the support column 2. A third motor 37 is provided on the support column 2. The third motor 37 is driven and connected to a driving pulley 38. A transmission belt 40 is connected between the driving pulley 38 and the driven pulley 39.

[0022] The guide groove 27 includes several layers of annular guide sections 28, which are arranged in parallel. Adjacent layers of annular guide sections 28 are connected by a transition section 29.

[0023] The motorcycle wheel hub is placed on the support block 22, which supports the hub portion. The positioning shaft 23 passes through the axle hole of the motorcycle wheel hub for positioning. The positioning shaft 23 and the axle hole of the motorcycle wheel hub have an interference fit, thus fixing the wheel hub. Starter motor 37 drives the drive pulley 38 to rotate. The drive pulley 38, through its interaction with the transmission belt 40 and the driven pulley 39, drives the lead screw 32 to rotate, thereby moving the lead screw slider 33 so that the grinding wheel 36 contacts the outer wall of the motorcycle wheel hub. Starter motor 35 drives the grinding wheel 36 to rotate, thus grinding the outer wall of the motorcycle wheel hub. Starter motor 6, which drives the support block 22 to rotate via the drive shaft 9, thereby rotating the motorcycle wheel hub. The drive shaft 9 drives the guide rod 13 to rotate along the guide groove 27. Due to the spiral structure design of the guide groove 27, the drive shaft 9 remains within a certain height when the guide rod 13 moves along the annular guide section 28, allowing the side grinding mechanism 16 to complete one circle of grinding on the outer wall of the hub at that height. When the guide rod 13 passes through the transition section 29, the drive shaft 9 descends, thereby driving the support block 22 to descend, causing the hub to descend a certain height. The guide rod 13 passes through the transition section 29 to reach the next layer of annular guide section 28 and moves along this layer of annular guide section 28, completing one circle of grinding on the hub at that height. By setting the height between adjacent annular guide sections 28 to be slightly less than the thickness of the grinding wheel 36, it can be ensured that after each descent of the hub, the grinding wheel 36 can at least cover the previous circle of grinding on the outer wall of the hub, thus ensuring grinding on all parts of the outer wall and preventing un-grinded areas between the previous and next circles.

[0024] A mounting platform 7 is provided at the lower part of the motor 6. A spring 5 is connected between the mounting platform 7 and the base 1. The spring 5 plays a buffering role during the descent of the mounting platform 7, so that the motor 6 on the mounting platform 7 can descend smoothly.

[0025] The portion of the drive shaft 9 located inside the sleeve 12 is provided with a turntable 10, and balls 11 are provided on the outer periphery of the turntable 10. The balls 11 are in contact with the inner wall of the sleeve 12. The turntable 10 and the balls 11 are used to limit the drive shaft 9, so that the drive shaft 9 remains stable and does not deviate during rotation, thereby ensuring that the fixed hub above will not deviate to ensure the grinding effect.

[0026] The hub of the wheel is not adequately supported by the support block 22 alone, and the hub is prone to shaking during grinding, resulting in poor grinding effect. A support plate 15 is provided between the sleeve 12 and the support block 22. The lower part of the support plate 15 is connected to the positioning cylinder 14, and the drive shaft 9 is set through the positioning cylinder 14. The support plate 15 provides auxiliary support for the wheel hub.

[0027] The support plate 15 directly supports the wheel hub. When the grinding wheel 36 grinds the lower part of the outer wall of the wheel hub, it will interfere with the support plate 15, making it impossible to grind normally. Therefore, the support plate 15 needs to be separated from the wheel hub when the grinding wheel 36 grinds the bottom of the outer wall of the wheel hub.

[0028] The drive shaft 9 passes through the support plate 15. A plane bearing is installed at the lower part of the support plate 15. A spring 44 is connected between the plane bearing and the sleeve 12. A retaining strip 25 is connected to the lower part of the support block 22. A retaining groove 26 that mates with the retaining strip 25 is opened in the middle of the support plate 15.

[0029] Initially, support block 22 is positioned above support plate 15, which is supported by spring 44. When drive shaft 9 rotates support block 22, support plate 15 does not rotate with it. At this time, grinding wheel 36 can grind the lower part of the outer wall of the hub without being affected by support plate 15. After grinding the bottom ring of the outer surface of the hub, support block 22 descends, and support plate 15 contacts the rim of the hub for support. Simultaneously, the retaining strip 25 at the bottom of support block 22 inserts into the slot 26 within support plate 15, allowing support plate 15 to rotate synchronously when support block 22 rotates. The planar bearing within support plate 15 ensures smooth rotation. During subsequent processing, support plate 15 and support block 22 rotate synchronously, providing simultaneous support to both the rim and hub of the hub to ensure its stability.

[0030] A ring groove 41 is formed at the lower part of the support plate 15. A plane bearing is installed in the ring groove 41. The plane bearing includes an upper bearing ring 42, a lower bearing ring 43, and a cage and steel balls disposed between the two. The upper bearing ring 42 is fixedly installed in the ring groove 41. A retaining ring 45 is installed at the lower part of the lower bearing ring 43. The upper end of the spring 44 is connected to the lower part of the retaining ring 45. A groove 46 is formed on the side wall of the ring groove 41. A stop block 48 is provided in the groove 46. A spring 47 is connected between the inner side of the stop block 48 and the inner wall of the groove 46. The inner side of the stop block 48 is an inclined surface, which is inclined upward and inward. When the upper bearing ring 42 is installed into the annular groove 41, the inclined surface of the stop block 48 presses the stop block 48 inward into the groove 46. After the upper bearing ring 42 is in place in the annular groove 41, the stop block 48 pops out of the groove 46 under the action of the spring 47 and locks onto the upper bearing ring 42, thereby restricting and fixing the upper bearing ring 42. The outer side of the retaining ring 45 is a certain distance from the side wall of the annular groove 41. When disassembling the planar bearing later, a tool is inserted through the gap between the retaining ring 45 and the annular groove 41, and then the stop block 48 is pressed into the groove 46, and the upper bearing ring 42 can reliably fall out of the annular groove 41 by gravity.

[0031] A support column 2 is connected to the upper part of the base 1, and a top plate 17 is connected to the upper part of the support column 2. A hydraulic cylinder 18 is installed on the upper part of the top plate 17. A mounting plate 19 is connected to the piston rod of the hydraulic cylinder 18, and a connecting rod 20 is connected to the lower part of the mounting plate 19. An end face grinding mechanism 21 is installed at the lower part of the connecting rod 20. By controlling the retraction of the piston rod of the hydraulic cylinder 18, the mounting plate 19 is moved downward, so that the end face grinding mechanism 21 contacts the upper end face of the wheel hub, thereby grinding the upper end face of the wheel hub.

[0032] The end face grinding mechanism 21 includes a support plate 49. The lower end of the connecting rod 20 is connected to the upper end face of the support plate 49. A lifting plate 50 is provided below the support plate 49. A limit rod 51 is connected to the upper part of the lifting plate 50. The upper end of the limit rod 51 passes through the support plate 49 and is connected to a baffle 52. A second spring 53 is sleeved on the limit rod 51. The upper end of the second spring 53 is connected to the lower end face of the baffle 52, and the lower end of the second spring 53 is connected to the upper end face of the support plate 49. A mounting groove 54 is provided at the lower part of the lifting plate 50. A grinding block 55 and a locking block 56 are provided in the mounting groove 54. When the end face grinding mechanism 21 descends, the lifting plate 50 presses against the upper end face of the hub and moves towards the support plate 49, thereby stretching the second spring 53. By adjusting the positions of the grinding block 55 and the locking block 56 in the mounting slot 54, the grinding block 55 is aligned with the area on the upper surface of the wheel hub that needs grinding. The rotation of the wheel hub, driven by the support block 22, brings the grinding block 55 into contact with the upper surface of the wheel hub, thus completing the grinding process. As the support block 22 descends, causing the wheel hub to descend, the lifting plate 50 moves downward under the action of the second spring 53, ensuring that the grinding block 55 remains in contact with the wheel hub for continuous grinding.

[0033] The lower part of the lifting plate 50 is connected to a positioning post 57, and the upper part of the positioning shaft 23 is provided with a positioning groove 24 that cooperates with the positioning post 57. When the end face grinding mechanism 21 descends, the positioning post 57 can cooperate with the positioning groove 24 to perform positioning, so as to ensure the accuracy of the position of the end face grinding mechanism 21.

[0034] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A grinding device for motorcycle wheel hubs, characterized in that: Includes a base (1), a support frame (3) connected to the upper part of the base (1), a sleeve (12) installed on the support frame (3), a support rod (4) connected to the lower part of the sleeve (12), a motor (6) installed at the lower part of the sleeve (12), a guide sleeve (8) installed on the side of the motor (6), the guide sleeve (8) is fitted on the support rod (4), the motor (6) is driven by a drive shaft (9), a support block (22) is connected to the upper end of the drive shaft (9), a positioning shaft (23) is connected to the upper part of the support block (22), a spiral guide groove (27) is opened on the sleeve (12), and the drive shaft (9) passes through the sleeve (12) and is positioned... The drive shaft (9) is connected to a guide rod (13) on its side. The guide rod (13) is located in a guide groove (27). The base (1) is connected to a support column (2) on its upper part. The support column (2) is connected to a top plate (17) on its upper part. A hydraulic cylinder (18) is installed on the top plate (17). A mounting plate (19) is connected to the piston rod of the hydraulic cylinder (18). A connecting rod (20) is connected to the lower part of the mounting plate (19). An end face grinding mechanism (21) is installed on the lower part of the connecting rod (20). A side grinding mechanism (16) is installed on the support column (2). The side grinding mechanism (16) includes a support connected to the inner side of the support column (2). A base (30) is provided with a rotating base (31) on its upper part. A lead screw (32) is rotatably mounted on the rotating base (31). A lead screw slider (33) is mounted on the lead screw (32). A mounting base (34) is connected to the upper part of the lead screw slider (33). A second motor (35) is mounted on the upper part of the mounting base (34). A grinding wheel (36) is driven by the second motor (35) through a commutator. A driven pulley (39) is connected to one end of the lead screw (32) near the support column (2). A third motor (37) is provided on the support column (2). A driving pulley (38) is driven by the third motor (37). A transmission belt (40) is connected between the driven pulley (39) and the driven pulley (39); the guide groove (27) includes several annular guide sections (28), and two adjacent annular guide sections (28) are connected by a transition section (29); a support plate (15) is provided between the sleeve (12) and the support block (22), the drive shaft (9) passes through the support plate (15), a plane bearing is installed at the lower part of the support plate (15), a spring three (44) is connected between the plane bearing and the sleeve (12), a retaining strip (25) is connected at the lower part of the support block (22), and a retaining groove (26) that cooperates with the retaining strip (25) is opened in the middle of the support plate (15).

2. The grinding device for motorcycle wheel hubs according to claim 1, characterized in that: A mounting platform (7) is provided at the lower part of the motor (6), and a spring (5) is connected between the mounting platform (7) and the base (1).

3. The grinding device for motorcycle wheel hubs according to claim 1, characterized in that: The drive shaft (9) is provided with a turntable (10) inside the sleeve (12), and a ball bearing (11) is provided on the outer periphery of the turntable (10). The ball bearing (11) is in contact with the inner wall of the sleeve (12).

4. The grinding device for motorcycle wheel hubs according to claim 1, characterized in that: The support plate (15) has an annular groove (41) at the bottom. The planar bearing is installed in the annular groove (41). The planar bearing includes an upper bearing ring (42) and a lower bearing ring (43). The upper bearing ring (42) is fixedly installed in the annular groove (41). A fixing ring (45) is installed at the bottom of the lower bearing ring (43). The upper end of the spring three (44) is connected to the lower part of the fixing ring (45).

5. A grinding device for motorcycle wheel hubs according to claim 4, characterized in that: A groove (46) is provided on the side wall of the annular groove (41), a stop block (48) is provided in the groove (46), and a spring (47) is connected between the inner side of the stop block (48) and the inner wall of the groove (46).

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