Bicycle hub middle pipe welding seam polishing device
By designing an automated bicycle hub middle pipe weld grinding device, the driving motor and grinding head are used to automatically grind the hub middle pipe, which solves the problem of time-consuming, labor-intensive and difficult to control the accuracy of manual grinding in the prior art, and improves production efficiency and products Accuracy.
Patent Information
- Application Number
- CN202421171185.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The grinding process of the welds in the existing bicycle hubs relies on manual operations, which is time-consuming and labor-intensive, and is difficult to control, and is limited by the proficiency of workers.
A bicycle drum center tube weld grinding device is designed, using base plate, side fixing plate, drive cylinder, elastic fixing structure, grinding structure and gas dust blowing assembly. The driving motor drives the rotating ring and grinding head to the drum center tube. Automatic polishing and use gas dust blowing assembly to remove debris.
Automatic polishing of welds in the middle pipe of the flower drum has been realized, production efficiency and product accuracy have been improved, and manual operation time and labor intensity have been reduced.
Smart Images
Figure CN222308335U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bicycle production, in particular to a welding seam grinding device for a bicycle hub middle pipe. Background Art
[0002] The hub of a bicycle is the component that connects the wheel hub to the frame, allowing the wheel to rotate. On a bicycle, there are usually two hubs, one mounted on the front wheel and one mounted on the rear wheel.
[0003] During the production process, the hub needs to be welded on the center tube, and then the weld needs to be polished, quenched and painted. However, most existing production processes still use manual polishing, which is time-consuming and labor-intensive. In addition, the round surface means that the polishing effect depends only on the worker's proficiency, and the product accuracy is difficult to control. Utility Model Content
[0004] The purpose of the utility model is to provide a bicycle hub middle pipe weld grinding device with a reasonable design to solve the defects and shortcomings of the prior art.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes a base plate, side fixing plates are respectively provided on both sides of the base plate, a support plate is provided on the base plate, a driving electric cylinder is horizontally provided between the side fixing plate and the support plate, the two ends of the driving electric cylinder are respectively connected to the side fixing plate and the support plate, the telescopic shaft of the driving electric cylinder movably passes through the support plate and is connected to a fixing head 1, an elastic fixing structure and a grinding structure connected thereto are installed on the other side fixing plate, the elastic fixing structure is connected to a fixing head 2 matching the fixing head 1, and a gas dust blowing assembly is provided on the outer side of the side fixing plate.
[0006] Preferably, the elastic fixing structure includes a sliding seat embedded in the side fixing plate, the front end of the sliding seat is flush with the inner wall of the side fixing plate, the sliding seat is a hollow cylindrical structure, a movable rod is slidably installed in the sliding seat, a plurality of alignment strips are fixed on the movable rod, a hole matching the shape of the movable rod and the alignment strip is opened at the front end of the sliding seat, the movable rod is slidingly arranged in the hole, the second fixed head is connected to the front end of the movable rod, a spring is arranged in the sliding seat, and the two ends of the spring are respectively connected to the movable rod and the inner wall of the sliding seat.
[0007] Preferably, the grinding structure includes a fixed sleeve fixed to the inner side of the side fixed plate, an annular rotating ring is installed on the inner side of the fixed sleeve through a bearing, and several grinding heads are evenly installed along the circumference of the inner front end of the rotating ring; the thickness of the bearing is smaller than the length of the fixed sleeve, and an outer gear ring is provided on the outer side of the rotating ring between the bearing and the side fixed plate, a drive box is fixed above the fixed sleeve, the bottom of the drive box is open, and the interior of the drive box is communicated with the interior of the fixed sleeve, a drive motor is provided on one side of the drive box, and the rotating shaft of the drive motor movably passes through the drive box and is connected to a drive gear, and the drive gear is meshed with the outer gear ring.
[0008] Preferably, the fixing head 1 is a cylindrical structure, a ring-shaped fixing groove is opened on the front side of the fixing head 1, the inner diameter and outer diameter of the fixing groove match the size of the hub to be processed, and anti-slip grooves are provided on the bottom surface of the fixing groove.
[0009] Preferably, the second fixing head is a disc-shaped structure, the front side of the second fixing head is connected to a limiting block, the diameter of the limiting block matches the inner diameter of the hub to be processed, and the front side of the second fixing head is provided with a plurality of anti-slip grooves.
[0010] Preferably, an annular buffer pad is provided on the side fixing plate between the rotating ring and the movable rod.
[0011] Preferably, the gas dust blowing assembly includes a blower arranged on one side of the base plate, the output port of the blower is connected to an air inlet pipe, the other end of the air inlet pipe is connected to the input end of a diverter arranged on a side fixed plate below the sliding seat, several output ends of the diverter are respectively connected to air supply pipes, one ends of the several air supply pipes are movably passed through the side fixed plate and are arranged between the buffer pad and the rotating ring.
[0012] After adopting the above structure, the beneficial effects of the utility model are:
[0013] The device is provided with a spring-driven movable rod, which can cooperate with the driving electric cylinder to move and adjust the position of the center pipe of the hub.
[0014] The device can clamp the hub tube to be polished from both ends by arranging the first fixing head and the second fixing head, thereby ensuring stability during the polishing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a front side view of the overall structure of the utility model;
[0016] Figure 2 It is a right side view of the overall structure of the utility model;
[0017] Figure 3 It is a cross-sectional view of a fixing head in the utility model;
[0018] Figure 4It is a left schematic diagram of the elastic fixing structure and the grinding structure in the utility model;
[0019] Figure 5 It is a cross-sectional view of the elastic fixing structure and the grinding structure in the utility model;
[0020] Figure 6 yes Figure 5 Enlarged view of part A in the middle.
[0021] Description of reference numerals:
[0022] 1. Base plate; 2. Side fixing plate; 3. Support plate; 4. Driving electric cylinder; 5. Fixing head one; 5-1. Fixing groove; 5-2. Anti-skid pattern; 6. Sliding seat; 7. Movable rod; 8. Spring; 9. Buffer pad; 10. Fixing sleeve; 11. Bearing; 12. Rotating ring; 13. Grinding head; 14. Fixing head two; 15. Limit block; 16. Anti-skid groove; 17. Outer gear ring; 18. Driving gear; 19. Driving motor; 20. Driving box; 21. Alignment strip; 22. Blower; 23. Inlet pipe; 24. Diverter; 25. Air pipe. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] See also Figure 1-Figure 4 As shown, it includes a base plate 1, side fixing plates 2 are respectively provided on both sides of the base plate 1, a support plate 3 is provided on the base plate 1, a driving electric cylinder 4 is horizontally provided between the fixing plate 2 and the support plate 3 on one side, two ends of the driving electric cylinder 4 are respectively connected to the side fixing plate 2 and the support plate 3, a telescopic shaft of the driving electric cylinder 4 movably penetrates the support plate 3 and is connected to a fixing head 1 5, an elastic fixing structure and a grinding structure connected thereto are installed on the fixing plate 2 on the other side, the elastic fixing structure is connected to a fixing head 2 14 matching the fixing head 1 5, and a gas dust blowing component is provided on the outer side of the side fixing plate 2.
[0025] See also Figure 1-Figure 5As shown, the elastic fixing structure includes a sliding seat 6 embedded in the side fixing plate 2, the front end of the sliding seat 6 is flush with the inner wall of the side fixing plate 2, the sliding seat 6 is a hollow cylindrical structure, a movable rod 7 is slidably installed in the sliding seat 6, a plurality of alignment strips 21 are fixed on the movable rod 7, a hole matching the shape of the movable rod 7 and the alignment strip 21 is opened at the front end of the sliding seat 6, the movable rod 7 is slidably arranged in the hole, the fixed head 14 is connected to the front end of the movable rod 7, a spring 8 is arranged in the sliding seat 6, the two ends of the spring 8 are respectively connected to the movable rod 7 and the inner wall of the sliding seat 6, and an annular buffer pad 9 is provided on the side fixing plate 2 between the rotating ring 12 and the movable rod 7.
[0026] As an optimization solution of the utility model, when the fixed head 14 is subjected to pressure, the movable rod 7 can be driven to retreat, and the movable rod 7 slides in the sliding seat 6, while compressing the spring 8. Then, after the rear end of the fixed head 14 contacts the buffer pad 9, the buffer pad 9 buffers the kinetic energy to prevent hard collision, and at the same time the position of the fixed head 14 is fixed; when the fixed head 14 loses pressure, the spring 8 rebounds and the movable rod 7 can be pushed outward.
[0027] See also Figure 1-Figure 6 As shown, the grinding structure includes a fixed sleeve 10 fixed to the inner side of the side fixed plate 2, an annular rotating ring 12 is installed on the inner side of the fixed sleeve 10 through a bearing 11, and a number of grinding heads 13 are evenly installed along the circumference of the inner front end of the rotating ring 12; the thickness of the bearing 11 is smaller than the length of the fixed sleeve 10, and an outer gear ring 17 is provided on the outer side of the rotating ring 12 between the bearing 11 and the side fixed plate 2, a drive box 20 is fixed above the fixed sleeve 10, the bottom of the drive box 20 is open, and the interior of the drive box 20 is communicated with the interior of the fixed sleeve 10, and a drive motor 19 is provided on one side of the drive box 20, and the rotating shaft of the drive motor 19 is movably passed through the drive box 20 and is connected to a drive gear 18, and the drive gear 18 is meshed with the outer gear ring 17.
[0028] As an optimization solution of the utility model, the driving motor 19 drives the outer gear ring 17 to rotate through the driving gear 18, and then drives the rotating ring 12 to rotate in the bearing 11. The grinding head 13 in the rotating ring 12 is used to grind the weld of the hub center tube. The driving box 20 can protect the internal driving gear 18 and the outer gear ring 17 to prevent dust from entering.
[0029] See also Figure 1-Figure 5 As shown, the fixing head 5 is a cylindrical structure, and an annular fixing groove 5-1 is opened on the front side of the fixing head 5. The inner diameter and outer diameter of the fixing groove 5-1 match the size of the hub to be processed, and an anti-slip pattern 5-2 is provided on the bottom surface of the fixing groove 5-1;
[0030] The second fixing head 14 is a disc-shaped structure, the front side of the second fixing head 14 is connected to a limiting block 15 , the diameter of the limiting block 15 matches the inner diameter of the hub to be processed, and the front side of the second fixing head 14 is provided with a plurality of anti-slip grooves 16 .
[0031] As an optimization solution of the utility model, the fixing groove 5-1 of the fixing head 15 is convenient for preliminary direction limitation when installing the hub center tube, and the limit block 15 on the fixing head 2 14 can limit the other end of the hub center tube from the inside, thereby maintaining the stable installation of the hub center tube. At the same time, the anti-skid groove 16 and the anti-skid pattern 5-2 can increase the friction force to prevent the hub center tube from rotating during the processing.
[0032] See also Figure 1-Figure 6 As shown, the gas dust blowing assembly includes a blower 22 arranged on one side of the base plate 1, and the output port of the blower 22 is connected to an air inlet pipe 23, the other end of the air inlet pipe 23 is connected to the input end of a diverter 24 arranged on the side fixed plate 2 below the sliding seat 6, and several output ends of the diverter 24 are respectively connected to air delivery pipes 25, and one end of the several air delivery pipes 25 are movably penetrated through the side fixed plate 2 and are arranged between the buffer pad 9 and the rotating ring 12.
[0033] As an optimization solution of the utility model, a blower 22 is used to output airflow, which is then sent into a diverter 24 through an air inlet pipe 23, and then enters several air delivery pipes 25 respectively and is sent into the inner side of the rotating ring 12, so that the air is continuously blown outward during the grinding process to blow out the debris and dust generated by the grinding, thereby preventing the debris and dust from accumulating and affecting the operation of the equipment.
[0034] The use process of this utility model:
[0035] First, push the fixed head 14 inward, put one end of the hub middle tube to be polished onto the limit block 15, and then use the rebound force of the spring 8 to insert the other end of the hub middle tube into the fixed groove 5-1, that is, start the drive motor 19 to drive the rotating ring 12 to rotate, and then start the drive electric cylinder 4 to extend, push the hub middle tube forward, and the spring 8 is compressed at the same time. During the pushing process, the polishing head 13 in the rotating ring 12 polishes the surface of the middle tube, and the air flow blown by the blower 22 is discharged from the air pipe 25 to blow out the debris generated by the polishing, and then when the rear end of the fixed head 14 contacts the buffer pad 9, the drive electric cylinder 4 can be controlled to retract, the spring 8 rebounds, and the movable rod 7 and the middle tube are pushed outward, and then the polished middle tube can be removed.
[0036] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or within the equivalent forms of such scope and boundaries.
Claims
1. A bicycle hub center tube weld grinding device, comprising a base plate (1), characterized in that: Side fixing plates (2) are respectively provided on both sides of the base plate (1), a support plate (3) is provided on the base plate (1), a driving electric cylinder (4) is horizontally provided between the side fixing plate (2) and the support plate (3), two ends of the driving electric cylinder (4) are respectively connected to the side fixing plate (2) and the support plate (3), a telescopic shaft of the driving electric cylinder (4) movably penetrates the support plate (3) and is connected to a fixing head 1 (5), an elastic fixing structure and a grinding structure connected thereto are installed on the other side fixing plate (2), the elastic fixing structure is connected to a fixing head 2 (14) matching the fixing head 1 (5), and a gas dust blowing assembly is provided on the outer side of the side fixing plate (2).
2. A bicycle hub middle tube weld grinding device according to claim 1, characterized in that: The elastic fixing structure comprises a sliding seat (6) embedded in the side fixing plate (2), the front end of the sliding seat (6) is flush with the inner wall of the side fixing plate (2), the sliding seat (6) is a hollow cylindrical structure, a movable rod (7) is slidably installed in the sliding seat (6), a plurality of alignment strips (21) are fixed on the movable rod (7), a hole matching the shape of the movable rod (7) and the alignment strip (21) is opened at the front end of the sliding seat (6), the movable rod (7) is slidably arranged in the hole, the second fixing head (14) is connected to the front end of the movable rod (7), a spring (8) is arranged in the sliding seat (6), and the two ends of the spring (8) are respectively connected to the movable rod (7) and the inner wall of the sliding seat (6).
3. A bicycle hub middle tube weld grinding device according to claim 2, characterized in that: The grinding structure comprises a fixed sleeve (10) fixed to the inner side of the side fixing plate (2); an annular rotating ring (12) is installed on the inner side of the fixed sleeve (10) through a bearing (11); a plurality of grinding heads (13) are evenly installed along the circumference of the inner front end of the rotating ring (12); the thickness of the bearing (11) is smaller than the length of the fixed sleeve (10); an outer gear ring (17) is provided on the outer side of the rotating ring (12) between the bearing (11) and the side fixing plate (2); a driving box (20) is fixed above the fixed sleeve (10); the bottom of the driving box (20) is open, and the interior of the driving box (20) is communicated with the interior of the fixed sleeve (10); a driving motor (19) is provided on one side of the driving box (20); a rotating shaft of the driving motor (19) movably penetrates the driving box (20) and is connected to a driving gear (18); the driving gear (18) is meshed with the outer gear ring (17).
4. A bicycle hub middle tube weld grinding device according to claim 3, characterized in that: The fixing head (5) is a cylindrical structure, and an annular fixing groove (5-1) is formed on the front side of the fixing head (5). The inner diameter and outer diameter of the fixing groove (5-1) match the size of the hub to be processed, and the bottom surface of the fixing groove (5-1) is provided with anti-slip grooves (5-2).
5. A bicycle hub middle tube weld grinding device according to claim 4, characterized in that: The second fixing head (14) is a disc-shaped structure. The front side of the second fixing head (14) is connected to a limiting block (15). The diameter of the limiting block (15) matches the inner diameter of the hub to be processed. The front side of the second fixing head (14) is provided with a plurality of anti-slip grooves (16).
6. A bicycle hub middle tube weld grinding device according to claim 5, characterized in that: An annular buffer pad (9) is provided on the side fixing plate (2) between the rotating ring (12) and the movable rod (7).
7. A bicycle hub middle tube weld grinding device according to claim 6, characterized in that: The gas dust blowing assembly comprises a blower (22) arranged on one side of the base plate (1); an air inlet pipe (23) is connected to the output port of the blower (22); the other end of the air inlet pipe (23) is connected to the input end of a flow divider (24) arranged on a side fixing plate (2) below the sliding seat (6); several output ends of the flow divider (24) are respectively connected to air delivery pipes (25); one end of the several air delivery pipes (25) movably penetrates the side fixing plate (2) and is then arranged between the buffer pad (9) and the rotating ring (12).