A spoke head coaxiality positioning device and positioning method

Abstract

This invention relates to the field of spoke processing equipment technology, specifically to a spoke head coaxiality positioning device and method. The device includes a coaxiality positioning structure comprising a mounting base, a head mold on the top of the mounting base, a forming groove on the top of the head mold, a positioning bushing fixedly mounted on one side of the head mold, a guide channel inside the positioning bushing, and a rod clamping assembly on one side of the positioning bushing for radially limiting and clamping the spoke rod. The rod clamping assembly is equipped with an adjusting locking component fixedly mounted on the coaxiality positioning structure for length adjustment. This invention, through the coaxiality positioning structure, uses a positioning bushing to position the spokes and head, and simultaneously uses a rod clamping assembly to provide double-stage coaxial clamping and fixation of the spokes, avoiding radial swaying and deflection during spoke processing and preventing misalignment between the head and the rod.

Description

Technical Field

[0001] This invention relates to a spoke head coaxiality positioning device, and more particularly to a spoke head coaxiality positioning device and positioning method, belonging to the technical field of spoke processing equipment. Background Technology

[0002] Spokes are the core load-bearing components of wheel assemblies. One end of the spoke usually needs to be processed into a thickened head structure for fitting and assembling with the hub or rim. The coaxiality accuracy between the spoke shaft axis and the head center axis directly determines the smoothness of spoke assembly, the uniformity of stress distribution, and the overall dynamic balance performance of the wheel.

[0003] Currently, conventional spoke head machining in the industry often uses simple clamping fixtures or directly relies on heading machine molds for positioning. However, these simple clamping fixtures lack specific radial limiting structures for the spoke rod, making the spokes prone to radial swaying and deflection during machining. This results in excessive deviations in coaxiality between the head and the rod after forming, reducing machining quality. Subsequent assembly can lead to jamming and uneven stress, and in severe cases, spoke breakage, affecting the safety of wheel use.

[0004] Therefore, there is an urgent need to improve the spoke head coaxiality positioning device and positioning method to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a spoke head coaxiality positioning device and method. By setting a coaxiality positioning structure, positioning bushings are used to position the spokes and head, while rod clamping components are used to clamp and fix the spokes in a two-stage coaxial manner, which avoids radial shaking and deflection during spoke processing and prevents the head and rod from shifting.

[0006] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0007] A spoke head coaxiality positioning device includes a coaxiality positioning structure. The coaxiality positioning structure includes a mounting base. A head mold is provided on the top of the mounting base. A forming groove is opened on the top of the head mold. A positioning bushing is fixedly installed on one side of the head mold. A guide channel is opened inside the positioning bushing. A rod clamping assembly is provided on one side of the positioning bushing for radial limiting clamping of the spoke rod. An adjusting locking assembly is fixedly installed on the coaxiality positioning structure for length adjustment of the rod clamping assembly.

[0008] Preferably, the rod clamping assembly includes a first fixed seat and a second fixed seat. The first fixed seat is fixedly connected to the mounting base, and the second fixed seat is located on one side of the first fixed seat. Two screws are symmetrically threaded onto both the first fixed seat and the second fixed seat. Two arc-shaped clamping plates are symmetrically slidably installed on the inner sides of both the first fixed seat and the second fixed seat. One end of each screw is rotatably connected to the outer wall of the arc-shaped clamping plate.

[0009] Preferably, a plurality of push rods are evenly fixedly installed on one end of the screw on the outer side, the surface of the push rods is provided with anti-slip texture, and an anti-slip rubber pad is fixedly installed on the inner side of the arc-shaped clamp.

[0010] Preferably, the adjusting locking assembly includes two slide rods fixedly installed on the mounting base and located on one side of the first fixed seat, two sliders fixedly installed at the bottom of the second fixed seat, the sliders being slidably connected to the slide rods, fixing plates fixedly installed on both sides of the second fixed seat, the fixing plates being provided with threaded first bolts, and the mounting base having a plurality of threaded holes.

[0011] Preferably, a scale plate is fixedly installed on the mounting base between the two slide rods, and a positioning block is fixedly installed on one side of the second fixing seat.

[0012] Preferably, the pier head mold is provided with a disassembly and replacement assembly, which includes two grooves symmetrically formed on the top surface of the mounting base. A spring is fixedly installed on the inner wall of the groove, and a clamping plate is slidably installed inside the groove. The clamping plate is fixedly connected to the spring. A locking block is fixedly installed on one side of the clamping plate, and a locking groove is formed on both sides of the pier head mold.

[0013] Preferably, a support plate is fixedly installed on the outer side of the clamping plate, a limit frame is slidably installed on the support plate, and a plurality of limit grooves are formed on the top surface of the mounting base.

[0014] Preferably, a plurality of positioning rods are fixedly installed on the surface of the mounting base, and a plurality of positioning plates are fixedly installed on the surface of the pier head mold.

[0015] Preferably, several fastening blocks are fixedly installed on both sides of the mounting base, and the fastening blocks are provided with threaded second bolts. An infrared centering indicator light is fixedly installed at one end of the mounting base.

[0016] Preferably, a positioning method for a spoke head coaxiality positioning device includes the following steps:

[0017] S1. Place the mounting base on the workbench of the head-building machine and fix it by connecting it to the mounting hole on the workbench with the second bolt. Place the head to be processed in the forming groove, and then pass one end of the spoke rod through the guide channel in the positioning bushing and connect it to one side of the head.

[0018] S2. Then, according to the length of the spoke rod, pull the second fixed seat and adjust its movement by sliding the slider on the slide bar until the second fixed seat is moved to the rear half of the spoke rod. Use the first bolt to connect with the threaded hole for fixation. Then, rotate the screw in sequence to drive the arc-shaped clamping plate to move by the threaded transmission, so that the two arc-shaped clamping plates move closer to each other to clamp the spoke rod.

[0019] S3. During the clamping process, ensure that one end of the spoke rod in the positioning bushing is aligned with the head to be processed in the forming groove until the spoke rod is completely clamped and fixed, so that the axis of the spoke rod coincides with the cavity axis of the forming groove, thus completing the coaxial positioning of the spoke and the head.

[0020] S4. Finally, start the head-forming machine to press the head in the forming groove, so that the head and spoke are connected and shaped. After processing, release the rod clamping assembly from the spoke rod, take the head out of the forming groove and pull it away from the rod clamping assembly to pull the spoke out of the positioning bushing.

[0021] This invention has at least the following beneficial effects:

[0022] By setting up a coaxial positioning structure, positioning bushings are used to position the spokes and the headstock, while a rod clamping assembly is used to clamp and fix the spokes in a two-stage coaxial manner. The positioning bushing and the rod clamping assembly are set with the forming groove in the headstock mold as the coaxial reference, so that the center of the forming groove in the headstock mold, the guide channel in the positioning bushing, and the two symmetrically arranged arc-shaped clamping plates in the rod clamping assembly are coaxially set, avoiding radial swaying and deflection during spoke processing and preventing the headstock and rod from shifting. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a top view of the overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the screw and arc-shaped clamping plate structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the clamping plate and card block structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the card slot structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the limiting frame and limiting groove structure of the present invention.

[0030] In the diagram: 1. Coaxiality positioning structure; 2. Mounting base; 3. Upright mold; 4. Forming groove; 5. Positioning bushing; 6. Guide channel; 7. Rod clamping assembly; 8. Adjustment and locking assembly; 9. Disassembly and replacement assembly; 10. First fixed seat; 11. Second fixed seat; 12. Screw; 13. Arc-shaped clamping plate; 14. Push rod; 15. Anti-slip rubber pad; 16. Sliding rod; 17. Sliding block; 18. Fixing plate; 19. First bolt; 20. Threaded hole; 21. Scale plate; 22. Positioning block; 23. Groove; 24. Spring; 25. Clamping plate; 26. Locking block; 27. Locking groove; 28. Support plate; 29. ​​Limiting frame; 30. Limiting groove; 31. Positioning rod; 32. Positioning plate; 33. Fastening block; 34. Second bolt; 35. Infrared centering indicator light. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] like Figures 1-6 As shown in this embodiment, a spoke head coaxiality positioning device and positioning method are provided.

[0033] A spoke head coaxiality positioning device includes a coaxiality positioning structure 1, which includes a mounting base 2. The top of the mounting base 2 is provided with a head mold 3. The top of the head mold 3 is provided with a forming groove 4. A positioning bushing 5 is fixedly installed on one side of the head mold 3. A guide channel 6 is provided inside the positioning bushing 5. A rod clamping assembly 7 is provided on one side of the positioning bushing 5 for radial limiting clamping of the spoke rod. An adjusting locking assembly 8 is fixedly installed on the coaxiality positioning structure 1 for length adjustment of the rod clamping assembly 7.

[0034] By setting the coaxiality positioning structure 1, the positioning bushing 5 and the guide channel 6 guide and initially position the front end of the spoke rod and the headstock, ensuring that the rod remains coaxial when it enters the forming groove. At the same time, the rod clamping assembly 7 is used to clamp and fix the spoke in a two-stage coaxial manner. The positioning bushing 5 and the rod clamping assembly 7 are set with the forming groove 4 in the headstock mold 3 as the coaxial reference, so that the center of the forming groove 4 in the headstock mold 3, the guide channel 6 in the positioning bushing 5, and the two arc-shaped clamping plates 13 symmetrically arranged in the rod clamping assembly 7 are coaxially set, avoiding radial shaking and deflection during spoke processing, and preventing the headstock and rod from shifting. The locking assembly 8 can be adjusted to allow the second fixing seat 11 to be adjusted to adapt to the processing of spokes of different lengths.

[0035] In this embodiment, as Figures 1-6 As shown, the rod clamping assembly 7 includes a first fixing seat 10 and a second fixing seat 11. The first fixing seat 10 is fixedly connected to the mounting base 2. The second fixing seat 11 is located on one side of the first fixing seat 10. Two screws 12 are symmetrically threaded onto both the first fixing seat 10 and the second fixing seat 11. Two arc-shaped clamping plates 13 are symmetrically slidably installed on the inner sides of both the first fixing seat 10 and the second fixing seat 11. One end of the screw 12 is rotatably connected to the outer wall of the arc-shaped clamping plate 13. Several screws are uniformly fixedly installed on the outer end of the screw 12. Push rod 14, the surface of push rod 14 is provided with anti-slip texture, anti-slip rubber pad 15 is fixedly installed on the inner side of arc-shaped clamp plate 13, adjusting locking assembly 8 includes two slide rods 16 fixedly installed on the mounting base 2 and located on one side of the first fixed seat 10, two sliders 17 are fixedly installed at the bottom of the second fixed seat 11, the sliders 17 are slidably connected to the slide rods 16, fixing plates 18 are fixedly installed on both sides of the second fixed seat 11, the fixing plates 18 are provided with threaded first bolts 19, and the mounting base 2 is provided with several threaded holes 20.

[0036] The first fixing seat 10 and the second fixing seat 11 in the spoke clamping assembly 7 can clamp the front and rear ends of the spoke rod, preventing radial swaying by using double-end clamping. Both the first fixing seat 10 and the second fixing seat 11 use screws 12 and arc-shaped clamping plates 13 to clamp and fix the spoke rod. The screw 12 can be finely adjusted using its own thread to clamp spokes of different specifications. The thread also has a self-locking function, ensuring that the arc-shaped clamping plate 13 will not easily loosen after clamping and fixing, thus ensuring the stability of the spoke rod clamping. Several push rods 14 are provided on one end of the screw 12 to facilitate the rotation of the screw 12. The surface is textured with anti-slip material to increase friction and prevent slippage during rotation. Anti-slip rubber pads 15 are provided on the inner wall of the arc-shaped clamp 13 to increase the friction between the arc-shaped clamp 13 and the spoke rod, preventing slippage during clamping. At the same time, the flexible contact protects the surface of the rod from indentations and scratches. The slider 17 in the adjusting locking assembly 8 is located at the bottom of the second fixed seat 11. The slider 17 is slidably connected to the slide rod 16, allowing the second fixed seat 11 to move to one side of the first fixed seat 10. After movement, the second fixed seat 11 can be fixed by connecting the first bolt 19 and the threaded hole 20 to fix spokes of different lengths.

[0037] In this embodiment, as Figures 1-6 As shown, a scale plate 21 is fixedly installed on the mounting base 2 between the two sliding rods 16. A positioning block 22 is fixedly installed on one side of the second fixed seat 11. The pier mold 3 is provided with a disassembly and replacement component 9. The disassembly and replacement component 9 includes two grooves 23 symmetrically opened on the top surface of the mounting base 2. A spring 24 is fixedly installed on the inner wall of the groove 23. A clamping plate 25 is slidably installed inside the groove 23, and the clamping plate 25 is fixedly connected to the spring 24. A locking block 26 is fixedly installed on one side of the clamping plate 25. A slot 27 is opened on both sides of the pier mold 3. A support plate 28 is fixedly installed on the outer side of the clamping plate 25. A limit frame 29 is slidably installed on the support plate 28. A number of limit grooves 30 are opened on the top surface of the mounting base 2.

[0038] The threaded holes 20 and the scale plate 21 allow for more precise adjustment of the position of the second fixing seat 11 according to the spoke length. The spacing between several scale lines on the threaded holes 20 is equal to the spacing between several threaded holes 20, with a spacing length of ten centimeters, ensuring better positioning. The groove 23, spring 24, clamping plate 25, locking block 26, and slot 27 allow the headstock mold 3 to be detached from the mounting base 2. The headstock mold 3 and the mounting base 2 are held and fixed by two clamping plates 25 through the elastic compression of the spring 24, forming a movable fixing structure. Pulling the two clamping plates 25 outwards allows the headstock mold 3 to be detached from the mounting base 2 for processing spoke heads of different specifications. The clamping plate 25 has a locking block 26 on its inner side, while the headstock mold 3 has slots 27 on both sides. After the clamping plate 25 clamps the pier head mold 3, the locking block 26 is inserted into the locking groove 27 to form a locking, achieving double fixation of the pier head mold 3, improving the firmness of the fixation of the pier head mold 3, and preventing the pier head mold 3 from falling off. Through the setting of the support plate 28, the limiting frame 29 and the limiting groove 30, after the clamping plate 25 clamps the pier head mold 3, it pushes the limiting frame 29 down to connect with the limiting groove 30. Relying on the limiting frame 29 and the limiting groove 30, the clamping plate 25 is always tightly attached to the pier head mold 3, preventing the clamping plate 25 from loosening. When the clamping plate 25 is pulled outward to disassemble the pier head mold 3, after the clamping plate 25 is pulled outward, the limiting frame 29 is pushed down again to connect with the limiting groove 30, limiting the clamping plate 25 after it is pulled out, and preventing the clamping plate 25 from returning to its original position under the elastic force of the spring 24 when disassembling the pier head mold 3, which would affect the disassembly operation.

[0039] In this embodiment, as Figures 1-6 As shown, several positioning rods 31 are fixedly installed on the surface of the mounting base 2, several positioning plates 32 are fixedly installed on the surface of the pier mold 3, several fastening blocks 33 are fixedly installed on both sides of the mounting base 2, and the fastening blocks 33 are provided with threaded second bolts 34. An infrared centering indicator light 35 is fixedly installed at one end of the mounting base 2.

[0040] The positioning rod 31 and positioning plate 32 are used to position the pier head mold 3, ensuring the coaxiality of the pier head mold 3 and the rod clamping assembly 7 and preventing offset. The fastening block 33, the second bolt 34 and the infrared centering indicator 35 facilitate the fixing of the mounting base 2 on the pier head machine workbench, ensuring the stability of the mounting base 2 on the workbench. At the same time, the infrared centering indicator 35 is used to quickly calibrate the installation position of the device. The emitted infrared light is completely aligned with the stamping axis of the pier head machine. During debugging, the coaxiality of the device and the pier head machine can be quickly calibrated by the infrared light to ensure that the axis of the forming groove 4 is aligned with the stamping axis of the pier head machine, thus ensuring the accuracy of the installation of the mounting base 2.

[0041] In this embodiment, as Figures 1-6 As shown in the figure, the working process of the spoke head coaxiality positioning device and positioning method provided in this embodiment is as follows:

[0042] Step 1: Place the mounting base 2 on the workbench of the head-building machine and fix it by connecting it to the mounting hole on the workbench with the second bolt 34. Place the head to be processed in the forming groove 4, and then pass one end of the spoke rod through the guide channel 6 in the positioning bushing 5 and connect it to one side of the head.

[0043] Step 2: Then, according to the length of the spoke rod, pull the second fixing seat 11 and adjust its movement by sliding the slider 17 on the slider 16 until the second fixing seat 11 is moved to the rear half of the spoke rod. Use the first bolt 19 to connect with the threaded hole 20 for fixation. Then, rotate the screw 12 in sequence to push the arc-shaped clamp 13 to move by the thread transmission, so that the two arc-shaped clamps 13 move closer to each other to clamp the spoke rod.

[0044] Step 3: During the clamping process, ensure that one end of the spoke rod in the positioning bushing 5 is aligned with the head to be processed in the forming groove 4 until the spoke rod is completely clamped and fixed, so that the axis of the spoke rod coincides with the cavity axis of the forming groove 4, thus completing the coaxial positioning of the spoke and the head.

[0045] Step 4: Finally, start the head-forming machine to press the head in the forming groove 4, so that the head and spoke are connected and shaped. After processing, release the rod clamping assembly 7 from the spoke rod, take the head out of the forming groove 4 and pull it away from the rod clamping assembly 7 to pull the spoke out of the positioning bushing 5.

[0046] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A spoke head coaxiality positioning device, characterized in that: The system includes a coaxiality positioning structure (1), which includes a mounting base (2). The top of the mounting base (2) is provided with a head mold (3). The top of the head mold (3) is provided with a forming groove (4). A positioning bushing (5) is fixedly installed on one side of the head mold (3). A guide channel (6) is provided inside the positioning bushing (5). A rod clamping assembly (7) is provided on one side of the positioning bushing (5) for radial limiting clamping of the spoke rod. An adjusting locking assembly (8) is fixedly installed on the coaxiality positioning structure (1) on the rod clamping assembly (7) for length adjustment of the rod clamping assembly (7).

2. The spoke head coaxiality positioning device according to claim 1, characterized in that: The rod clamping assembly (7) includes a first fixed seat (10) and a second fixed seat (11). The first fixed seat (10) is fixedly connected to the mounting base (2). The second fixed seat (11) is located on one side of the first fixed seat (10). Two screws (12) are symmetrically threaded onto the first fixed seat (10) and the second fixed seat (11). Two arc-shaped clamps (13) are symmetrically slidably installed on the inner side of the first fixed seat (10) and the second fixed seat (11). One end of the screw (12) is rotatably connected to the outer wall of the arc-shaped clamp (13).

3. The spoke head coaxiality positioning device according to claim 2, characterized in that: Several push rods (14) are evenly fixedly installed on one end of the screw (12) on the outside. The surface of the push rods (14) is provided with anti-slip texture. An anti-slip rubber pad (15) is fixedly installed on the inner side of the arc-shaped clamp (13).

4. The spoke head coaxiality positioning device according to claim 3, characterized in that: The adjusting locking assembly (8) includes two slide rods (16) fixedly installed on the mounting base (2) and located on one side of the first fixed seat (10). Two sliders (17) are fixedly installed at the bottom of the second fixed seat (11). The sliders (17) are slidably connected to the slide rods (16). Fixing plates (18) are fixedly installed on both sides of the second fixed seat (11). The fixing plates (18) are provided with threaded first bolts (19). The mounting base (2) is provided with several threaded holes (20).

5. The spoke head coaxiality positioning device according to claim 4, characterized in that: A scale plate (21) is fixedly installed on the mounting base (2) between the two slide rods (16), and a positioning block (22) is fixedly installed on one side of the second fixed seat (11).

6. The spoke head coaxiality positioning device according to claim 1, characterized in that: The pier head mold (3) is provided with a disassembly and replacement assembly (9). The disassembly and replacement assembly (9) includes two grooves (23) symmetrically opened on the top surface of the mounting base (2). A spring (24) is fixedly installed on the inner wall of the groove (23). A clamping plate (25) is slidably installed inside the groove (23), and the clamping plate (25) is fixedly connected to the spring (24). A locking block (26) is fixedly installed on one side of the clamping plate (25). A locking groove (27) is opened on both sides of the pier head mold (3).

7. The spoke head coaxiality positioning device according to claim 6, characterized in that: A support plate (28) is fixedly installed on the outside of the clamping plate (25), and a limit frame (29) is slidably installed on the support plate (28). Several limit grooves (30) are opened on the top surface of the mounting base (2).

8. The spoke head coaxiality positioning device according to claim 1, characterized in that: Several positioning rods (31) are fixedly installed on the surface of the mounting base (2), and several positioning plates (32) are fixedly installed on the surface of the pier mold (3).

9. The spoke head coaxiality positioning device according to claim 1, characterized in that: Several fastening blocks (33) are fixedly installed on both sides of the mounting base (2). The fastening blocks (33) are provided with threaded second bolts (34). An infrared centering indicator light (35) is fixedly installed at one end of the mounting base (2).

10. The positioning method of the spoke head coaxiality positioning device according to claim 1, characterized in that, Includes the following steps: S1. Place the mounting base (2) on the workbench of the head-building machine and fix it by connecting it to the mounting hole on the workbench with the second bolt (34). Place the head to be processed in the forming groove (4), and then pass one end of the spoke rod through the guide channel (6) in the positioning bushing (5) and connect it to one side of the head. S2. Then, according to the length of the spoke rod, pull the second fixed seat (11) and adjust the movement by sliding the slider (17) on the slide rod (16) until the second fixed seat (11) is moved to the rear half of the spoke rod. Use the first bolt (19) to connect with the threaded hole (20) for fixation. Then, rotate the screw (12) in sequence to push the arc-shaped clamp (13) to move by relying on the thread transmission, so that the two arc-shaped clamps (13) come closer to each other to clamp the spoke rod. S3. During the clamping process, ensure that one end of the spoke rod in the positioning bushing (5) is connected to the end head to be processed in the forming groove (4) until the spoke rod is completely clamped and fixed, so that the axis of the spoke rod coincides with the cavity axis of the forming groove (4), and the coaxial positioning of the spoke and the end head is completed. S4. Finally, start the head-forming machine to press the head in the forming groove (4) so ​​that the head and spoke are connected and shaped. After processing, loosen the clamping assembly (7) on the spoke rod and take the head out of the forming groove (4). Then pull it away from the clamping assembly (7) to pull the spoke out from the positioning bushing (5).

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