A polishing device for bicycle rim production
By designing an automated bicycle rim polishing device, which utilizes a motor-driven turntable and an electric telescopic rod system, the problem of instability in manual polishing has been solved, achieving efficient and stable polishing results for the inner wall of the rim.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINGTAI QILI BICYCLE ACCESSORIES CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing technology, the grinding effect of bicycle rims is poor due to the unstable state of human hands, which cannot meet the usage requirements of the rims.
A grinding device for bicycle rim production was designed. It utilizes a motor-driven turntable and linkage system, combined with an electric telescopic rod and support block, to achieve automated grinding head close contact with the inner wall of the rim. The electric telescopic rod and support block work together to ensure the rim is in a stable position, and the motor drives the turntable to rotate for grinding.
It achieves a quick, time-saving, and labor-saving polishing process that requires no manual operation, and the polishing effect is excellent, meeting the usage requirements of bicycle rims.
Smart Images
Figure CN224407091U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bicycle rim production and processing technology, and in particular relates to a grinding device for bicycle rim production. Background Technology
[0002] Bicycles have advantages such as small footprint, light weight, and zero emissions. They are not only a convenient and environmentally friendly means of transportation, but also play an important role in promoting personal health.
[0003] During the production process of bicycle rims, the inner wall of the outer side of the rim needs to be polished to make it smooth, thereby preventing damage to the inner tube of the tire and affecting the normal use of the bicycle. Currently, polishing is generally done by workers holding a polishing roller and rotating the rim, polishing by the contact between the polishing roller and the inner wall of the outer side of the rim. Due to the instability of the human hand, it is impossible to ensure a tight contact between the inner wall of the outer side of the rim and the polishing roller, resulting in poor polishing effect and failing to meet the usage requirements of bicycle rims. Utility Model Content
[0004] To address the above problems, this utility model provides a grinding device for bicycle rim production.
[0005] This utility model is implemented as follows: A grinding device for bicycle rim production includes a base. A support rod is vertically fixed on one side of the upper end of the base. A support plate is horizontally fixed on the upper end of the support rod to ensure the stability of the support plate. A motor is horizontally fixed on the support plate to ensure the stability of the motor. A turntable is vertically fixed on one side of the motor. The middle of one side of the turntable is fixedly connected to the drive shaft of the motor. The turntable rotates under the action of the motor. Multiple connecting rods are horizontally and evenly fixed on the outer edge of the other side of the turntable. The ends of the connecting rods are fixedly connected to a rotating ring. The turntable is connected to the rotating ring through the multiple connecting rods. A base is horizontally and symmetrically fixed on the outer edge of the other side of the rotating ring. A first electric telescopic rod is vertically fixed on the side of the base facing the center of the rotating ring to ensure the stability of the position of the first electric telescopic rod. A grinding head is fixedly fixed on the end of the first electric telescopic rod. The grinding head moves with the first electric telescopic rod. The grinding head has the same specifications as the outer side of the bicycle rim. The grinding head grinds the inner wall of the outer side of the bicycle rim.
[0006] A central disc is provided between the rotating rings, and a ball bearing is provided between the rotating rings and the central disc to ensure smooth rotation of the rotating rings. A shaft is horizontally fixed at the center of one side of the central disc, and a bearing seat is provided at the center of one side of the rotating disc. The shaft and the bearing seat are positioned correspondingly, and the end of the shaft is located inside the bearing seat, which further ensures a reliable connection between the central disc and the rotating disc, and also ensures free rotation of the rotating rings. A block is horizontally fixed at the center of the other side of the central disc. Multiple second electric telescopic rods are evenly fixed on the outer edge of the block to ensure the stability of the position of the second electric telescopic rods. The second electric telescopic rods are parallel to the axial line of the central disc, and a support block is fixed at the end of the second electric telescopic rod to support the bicycle rim. The support block is positioned corresponding to the grinding head. A groove is opened at the center of the top of the support block. The groove is the same size as the inner side of the bicycle rim to ensure a reliable connection between the inner side of the bicycle rim and the support block, and to prevent the bicycle rim from shifting position.
[0007] Preferably, a slider is provided on the base located on one side of the central disk, and a third electric telescopic rod is fixedly provided on the base. The end of the third electric telescopic rod is fixedly connected to the slider. The slider moves horizontally under the action of the third electric telescopic rod. A vertical rod is fixedly provided at the middle position of the upper end of the slider, and an insert rod is fixedly provided at the upper end of the vertical rod. The insert rod and the vertical rod move with the slider. The insert rod faces the block. A rectangular slot is horizontally opened at the middle position of the block facing the insert rod end. The position of the insert rod corresponds to the slot and the same size. The insert rod is inserted into the slot to ensure a reliable connection between the insert rod and the block, thereby ensuring the stability of the central disk position and preventing the central disk from rotating.
[0008] Preferably, the upper end of the base has a through groove and a bottom groove that are connected. The through groove, the bottom groove and the insertion rod are arranged parallel to each other. The width of the bottom groove is greater than the width of the through groove. The lower end of the slider is fixedly provided with a connecting block and a locking block. The connecting block passes through the through groove and the locking block is set in the bottom groove to ensure the stability of the slider position and prevent the slider from separating from the base. The width of the locking block is the same as the width of the bottom groove to prevent the slider from deflecting during movement.
[0009] Preferably, the end of the insertion rod is provided with a bevel to ensure that the insertion rod is smoothly and reliably inserted into the slot.
[0010] The beneficial effects of this utility model are as follows: the support block moves under the action of the second electric telescopic rod to support the bicycle rim and ensure the stability of the rim position; the grinding head moves under the action of the first electric telescopic rod to make the grinding head in close contact with the inner wall of the outer side of the rim; the motor drives the rotating ring to rotate through the turntable, and then the grinding head moves to grind the inner wall of the outer side of the rim. No manual operation is required, the grinding process is convenient and quick, saves time and effort, and the grinding effect is good, which meets the usage requirements of bicycle rims. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 This is a structural diagram of one side of the central disk;
[0013] Figure 3 This is a schematic diagram of the connection structure between the base and the slider;
[0014] In the diagram: 1. Base; 2. Support rod; 3. Support plate; 4. Motor; 5. Turntable; 6. Connecting rod; 7. Rotary ring; 8. Base; 9. First electric telescopic rod; 10. Grinding head; 11. Center plate; 12. Ball bearing; 13. Shaft; 14. Bearing seat; 15. Block; 16. Second electric telescopic rod; 17. Support block; 18. Slot; 19. Slider; 20. Third electric telescopic rod; 21. Vertical rod; 22. Insert rod; 23. Slot; 24. Through slot; 25. Bottom slot; 26. Connecting block; 27. Locking block. Detailed Implementation
[0015] To better understand the technical solution of this utility model, the following description, in conjunction with the accompanying drawings, further illustrates this utility model.
[0016] like Figure 1-3The invention relates to a grinding device for bicycle rim production, comprising a base 1, a support rod 2 vertically fixed to one side of the upper end of the base 1, a support plate 3 horizontally fixed to the upper end of the support rod 2 to ensure the stability of the support plate 3, a motor 4 horizontally fixed to the support plate 3 to ensure the stability of the motor 4, a turntable 5 vertically fixed to one side of the motor 4, the middle of one side of the turntable 5 being fixedly connected to the drive shaft of the motor 4, the turntable 5 rotating under the action of the motor 4, and four connecting rods 6 horizontally and evenly fixed to the outer edge of the other side of the turntable 5, the ends of the connecting rods 6 being connected to the drive shaft of the motor 4. Ring 7 is fixedly connected, and turntable 5 is connected to ring 7 via four connecting rods 6. A base 8 is horizontally and symmetrically fixed on the outer edge of the other side of ring 7. A first electric telescopic rod 9 is vertically fixed on the side of the base 8 facing the center of ring 7 to ensure the stability of the first electric telescopic rod 9. A grinding head 10 is fixedly installed at the end of the first electric telescopic rod 9. The grinding head 10 moves with the first electric telescopic rod 9. The grinding head 10 has the same specifications as the outer side of the bicycle rim and grinds the inner wall of the outer side of the bicycle rim. The rings 7 are arranged with... A central disk 11 is provided, and a ball bearing 12 is provided between the rotating ring 7 and the central disk 11 to ensure smooth rotation of the rotating ring 7. A shaft 13 is horizontally fixed at the middle position of one side of the central disk 11, and a bearing seat 14 is provided at the middle position of one side of the rotating disk 5. The shaft 13 and the bearing seat 14 are positioned correspondingly, and the end of the shaft 13 is located inside the bearing seat 14, which further ensures a reliable connection between the central disk 11 and the rotating disk 5, and also ensures the free rotation of the rotating ring 7. A block 15 is horizontally fixed at the middle position of the other side of the central disk 11, and the outer edge of the block 15... Four second electric telescopic rods 16 are evenly and fixedly arranged to ensure the stability of their positions. The second electric telescopic rods 16 are parallel to the axial line of the center plate 11, and support blocks 17 are fixedly arranged at the ends of the second electric telescopic rods 16 to support the bicycle rim. The support blocks 17 correspond to the position of the grinding head 10. A slot 18 is opened at the middle of the top of the support block 17. The slot 18 has the same specifications as the inner side of the bicycle rim to ensure a reliable connection between the inner side of the bicycle rim and the support block 17 and to prevent the bicycle rim from shifting position.
[0017] A slider 19 is mounted on a base located on one side of the central disk 11. A third electric telescopic rod 20 is fixedly mounted on the base 1, with its end fixedly connected to the slider 19. The slider 19 moves horizontally under the action of the third electric telescopic rod 20. A vertical rod 21 is vertically fixed at the middle of the upper end of the slider 19, and an insertion rod 22 is horizontally fixed at the upper end of the vertical rod 21. The insertion rod 22 and the vertical rod 21 move with the slider 19. The insertion rod 22 faces the block 15. A rectangular slot 23 is horizontally formed at the middle of the end of the block 15 facing the insertion rod 22. The insertion rod 22 and the slot 23 are corresponding in position and the same size. The insertion rod 22 is inserted into the slot 23, ensuring a reliable connection between the insertion rod 22 and the block 15, thereby ensuring the stability of the central disk 11 and preventing rotation of the central disk 11. The end of the insertion rod 22 is beveled to ensure that the insertion rod 22 is smoothly and reliably inserted into the slot 23. The upper end of the base 1 is provided with a through groove 24 and a bottom groove 25 that are connected. The through groove 24, the bottom groove 25 and the insertion rod 22 are arranged parallel to each other. The width of the bottom groove 25 is greater than the width of the through groove 24. The lower end of the slider 19 is fixedly provided with a connecting block 26 and a locking block 27. The connecting block 26 passes through the through groove 24 and the locking block 27 is set in the bottom groove 25 to ensure the stability of the slider 19 and prevent the slider 19 from separating from the base 1. The width of the locking block 27 is the same as the width of the bottom groove 25 to prevent the slider 19 from deflecting during movement.
[0018] Initially, the third electric telescopic rod 20 is in the extended state, causing the insert rod 22 to disengage from the slot 23, placing the rim on the slot 18. The second electric telescopic rod 16 moves the support block 17, supporting the rim and ensuring its stability. The first electric telescopic rod 9 moves the grinding head 10, bringing it into close contact with the inner wall of the rim. The third electric telescopic rod 20 moves the slider 19, inserting the insert rod 22 into the slot 23. The motor 4 starts, rotating the rotating ring 7 via the turntable 5, which in turn rotates the grinding head 10, grinding the inner wall of the rim. After grinding, the insert rod 22 separates from the slot 23, and the rim is removed.
[0019] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.
Claims
1. A grinding device for bicycle rim production, comprising a base, characterized in that, A support rod is vertically fixed to one side of the upper end of the base. A support plate is horizontally fixed to the upper end of the support rod. A motor is horizontally fixed to the support plate. A turntable is vertically fixed to one side of the motor. The middle of one side of the turntable is fixedly connected to the drive shaft of the motor. Multiple connecting rods are horizontally and evenly fixed to the outer edge of the other side of the turntable. The ends of the connecting rods are fixedly connected to a rotating ring. A base is horizontally and symmetrically fixed to the outer edge of the other side of the rotating ring. A first electric telescopic rod is vertically fixed to the side of the base facing the center of the rotating ring. A grinding head is fixed to the end of the first electric telescopic rod. The grinding head has the same specifications as the outer side of the bicycle rim. A central disc is arranged between the rotating rings, and a ball bearing is arranged between the rotating rings and the central disc. A shaft is horizontally fixed at the center of one side of the central disc, and a bearing seat is arranged at the center of one side of the rotating disc. The shaft and the bearing seat are positioned correspondingly, and the end of the shaft is located inside the bearing seat. A block is horizontally fixed at the center of the other side of the central disc. Multiple second electric telescopic rods are evenly fixedly arranged on the outer edge of the block. The second electric telescopic rods are parallel to the axial line of the central disc, and a support block is fixedly arranged at the end of the second electric telescopic rod. The support block is positioned corresponding to the grinding head. A slot is opened at the center of the top of the support block, and the slot has the same specifications as the inner side of the bicycle rim.
2. The grinding device for bicycle rim production according to claim 1, characterized in that, A slider is provided on the base located on one side of the central disk. A third electric telescopic rod is fixedly provided on the base. The end of the third electric telescopic rod is fixedly connected to the slider. A vertical rod is fixedly provided at the middle position of the upper end of the slider. An insert rod is fixedly provided at the upper end of the vertical rod. The insert rod faces the block. A rectangular slot is horizontally opened at the middle position of the block facing the insert rod. The insert rod and the slot are corresponding in position and the same size. The insert rod is inserted into the slot.
3. A grinding device for bicycle rim production according to claim 2, characterized in that, The upper end of the base is provided with a through groove and a bottom groove that are connected. The through groove, the bottom groove and the insertion rod are arranged in parallel. The width of the bottom groove is greater than the width of the through groove. The lower end of the slider is fixedly provided with a connecting block and a locking block. The connecting block passes through the through groove and the locking block is set in the bottom groove. The width of the locking block is the same as the width of the bottom groove.
4. A grinding device for bicycle rim production according to claim 3, characterized in that, The end of the insertion rod is provided with a bevel.