Positioning device for finishing aluminum alloy wheel hub

Abstract

The utility model discloses a positioning device for aluminum alloy wheel hub finish machining, including processing platform, axle hole positioning mechanism, axle hole positioning mechanism sets up in the middle position of processing platform upper portion, and axle hole positioning mechanism includes support disc, is set up with a plurality of removal grooves on support disc, and removal groove is along the radial setting of support disc, and the sliding setting of removal groove has removal block, and removal block upper portion is connected with the block that resists tightly, axle hole positioning mechanism still includes the adjusting block in a plurality of block that resists tightly, and adjusting block is whole and presents the circular platform state, and the diameter of adjusting block lower extreme is less than the diameter of upper end, and the outer periphery of adjusting block is set against the inboard of block that resists tightly. The utility model can position and fix wheel hub effectively.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing technology, and more specifically, to a positioning device for precision machining of aluminum alloy wheel hubs. Background Technology

[0002] The market demand for diverse wheel designs is increasing, with wheels transitioning from simple circular shapes to complex curved designs. For producing wheels with complex curved designs, forging alone is insufficient to create all shapes, necessitating further machining. Positioning devices are used during wheel machining to secure the wheel, facilitating subsequent precision finishing. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a positioning device for precision machining of aluminum alloy wheel hubs.

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

[0005] This utility model discloses a positioning device for precision machining of aluminum alloy wheel hubs, including a machining table and a shaft hole positioning mechanism. The shaft hole positioning mechanism is located in the middle of the upper part of the machining table. The shaft hole positioning mechanism includes a support plate with several moving grooves. The moving grooves are arranged radially along the support plate. A moving block is slidably arranged in the moving groove, and a clamping block is connected to the upper part of the moving block. The shaft hole positioning mechanism also includes an adjusting block located in the middle of the clamping blocks. The adjusting block is frustum-shaped, and the diameter of the lower end of the adjusting block is smaller than the diameter of the upper end. The outer periphery of the adjusting block abuts against the inner side of the clamping block. An adjusting screw is inserted in the middle of the adjusting block, and a linkage block is connected to the adjusting screw. A threaded hole is opened in the middle of the support plate, and the lower end of the adjusting screw is threaded into the threaded hole.

[0006] Furthermore, the adjusting block includes a cone block, the upper part of which has a groove, and the linkage block is located in the groove.

[0007] Furthermore, the adjusting block includes a cover plate located above the cone block, and a protrusion connected to the lower part of the cover plate, the protrusion being disposed inside the cone block.

[0008] Furthermore, a guide groove is provided on the support plate. The guide groove is located below the moving groove and is connected to the moving groove. A guide block is connected to the lower part of the moving block. The guide block is located inside the guide groove. A spring is connected to the outside of the guide block. The other end of the spring is connected to the side wall of the guide groove.

[0009] Furthermore, a protective block is provided on the outside of the clamping block, and the protective block is made of rubber.

[0010] Furthermore, the shaft hole positioning mechanism includes a mounting plate, which is installed in the middle position on the upper part of the machining table. A support sleeve is connected to the upper part of the mounting plate, and the support plate is installed on the upper end of the support sleeve.

[0011] Furthermore, it also includes several auxiliary positioning mechanisms, which are evenly distributed around the shaft hole positioning mechanism.

[0012] Furthermore, the auxiliary positioning mechanism includes a mounting block, a top limiting mechanism, and a side wall limiting mechanism. A support block is connected to the upper part of the mounting block. The top limiting mechanism and the side wall limiting mechanism are mounted on the support block. The top limiting mechanism is located above the support block, and the side wall limiting mechanism is located inside the support block.

[0013] Furthermore, the upper part of the support block is connected to a mounting screw, which passes through the pressure block and is threadedly connected to a fixing nut.

[0014] The advantages of this utility model are: it can effectively position and fix the wheel hub from the hub shaft hole, which facilitates the processing of the wheel hub; the combination of multiple fixing methods provides a better limiting effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a positioning device used for precision machining of aluminum alloy wheel hubs in this embodiment;

[0016] Figure 2 This is a schematic diagram of one structure of the shaft hole positioning mechanism in this embodiment;

[0017] Figure 3 This is a schematic diagram of one usage state of the positioning device used for precision machining of aluminum alloy wheel hubs in this embodiment;

[0018] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0019] Reference numerals: 1. Machining table; 2. Shaft hole positioning mechanism; 3. Auxiliary positioning mechanism; 4. Top limit mechanism; 5. Side wall limit mechanism; 6. Support plate; 7. Moving groove; 8. Moving block; 9. Clamping block; 10. Adjusting block; 11. Adjusting screw; 12. Protective block; 13. Mounting block; 14. Support block; 15. Mounting screw; 16. Pressure block; 17. Pad block; 18. Fixing nut one; 19. Side plate; 20. Sliding groove; 21. Positioning screw; 22. Fixing nut two; 23. Support seat; 24. Clamping block; 25. Mounting plate; 26. Support sleeve; 27. Guide groove; 28. Guide block; 29. ​​Spring; 30. Arc surface; 31. Conical block; 32. Groove; 33. Linkage block; 34. Cover plate; 35. Protrusion. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-4 As shown, a positioning device for precision machining of aluminum alloy wheel hubs includes a machining table 1 and a shaft hole positioning mechanism 2. The shaft hole positioning mechanism 2 is located in the middle of the upper part of the machining table 1. The shaft hole positioning mechanism 2 includes a support plate 6, on which a plurality of moving grooves 7 are formed. The moving grooves 7 are arranged radially along the support plate 6. A moving block 8 is slidably arranged in the moving groove 7. A pressing block 9 is connected to the upper part of the moving block 8. The pressing block 9 is located on the upper part of the moving block 8 near the center of the support plate 6. The outer side of the pressing block 9 is arc-shaped, and its curvature is set according to the inner diameter of the shaft hole, so that the outer side of the pressing block 9 can better fit with the inner wall of the shaft hole, maximize the contact area, and thus obtain the best abutment force to fix the wheel hub.

[0022] The shaft hole positioning mechanism 2 also includes an adjusting block 10 located among several abutting blocks 9. The adjusting block 10 is generally frustum-shaped, and the diameter of the lower end of the adjusting block 10 is smaller than the diameter of the upper end. An arc-shaped surface 30 that matches the outer periphery of the adjusting block 10 is provided on the inner side of the abutting block 9. During the descent of the adjusting block 10, the outer periphery of the adjusting block 10 abuts against the inner side of the abutting block 9, causing the abutting block 9 to move away from the center of the support plate 6, thereby abutting the abutting block 9 against the inner wall of the shaft hole of the hub for center positioning and fixation.

[0023] like Figure 4 As shown, an adjusting screw 11 is inserted through the middle of the adjusting block 10, and a linkage block 33 is connected to the adjusting screw 11. A threaded hole is opened in the middle of the support plate 6, and the lower end of the adjusting screw 11 is threaded into the threaded hole. Tightening the adjusting screw 11 causes the adjusting screw 11 to drive the adjusting block 10 to rise and fall synchronously through the linkage block 33.

[0024] like Figure 4 As shown, the adjusting block 10 includes a conical block 31 and a cover plate 34. A groove 32 is formed on the upper part of the conical block 31, and a linkage block 33 is located within the groove 32. The cover plate 34 is located above the conical block 31, and a protrusion 35 is connected to the lower part of the cover plate 34. The protrusion 35 is disposed within the conical block 31 and located above the linkage block 33. The cover plate 34 and the conical block 31 are connected by screws. The protrusion 35 and the groove 32 limit the longitudinal position of the linkage block 33, allowing the linkage block 33 to drive the adjusting block 10 to rise and fall.

[0025] Furthermore, a guide groove 27 is provided on the support plate 6. The guide groove 27 is located below and connected to the moving groove 7. A guide block 28 is connected to the lower part of the moving block 8. The guide block 28 is located inside the guide groove 27. A spring 29 is connected to the outside of the guide block 28. The other end of the spring 29 is connected to the side wall of the guide groove 27. By setting the spring 29, when the adjusting block 10 moves upward, the moving block 8 can move inward to reset, releasing the fixation at the shaft hole of the hub, making it convenient for continued use next time.

[0026] Furthermore, a protective block 12 is provided on the outside of the clamping block 9. The protective block 12 is made of rubber. By setting the protective block 12 to contact the inner wall of the shaft hole, the pressure damage to the inside of the shaft hole during the clamping process can be reduced.

[0027] Furthermore, the shaft hole positioning mechanism 2 includes a mounting plate 25, which is installed at the middle position of the upper part of the machining table 1. A support sleeve 26 is connected to the upper part of the mounting plate 25, and a support plate 6 is installed on the upper end of the support sleeve 26. The lower end of the adjusting screw 11 can extend into the hollow area in the middle of the support sleeve 26, so that the adjusting screw 11 can rise and fall normally.

[0028] Furthermore, this device also includes several auxiliary positioning mechanisms 3, which are evenly distributed in a circumferential shape around the shaft hole positioning mechanism 2. Each auxiliary positioning mechanism 3 includes a mounting block 13, a top limiting mechanism 4, and a side wall limiting mechanism 5. A support block 14 is connected to the upper part of the mounting block 13. The top limiting mechanism 4 and the side wall limiting mechanism 5 are mounted on the support block 14. The top limiting mechanism 4 is located above the support block 14, and the side wall limiting mechanism 5 is located inside the support block 14. The top limiting mechanism 4 presses against the upper end of the wheel hub, cooperating with the processing table 1 to achieve vertical positioning of the wheel hub. The side wall limiting mechanism 5 can abut against the outer wall of the wheel hub, thus playing an auxiliary positioning role.

[0029] A mounting screw 15 is connected to the upper part of the support block 14. The mounting screw 15 passes through the pressure block 16, and a fixing nut 18 is threadedly connected to the part of the mounting screw 15 that passes through the pressure block 16. By tightening the fixing nut 18, the pressure block 16 is pressed against the upper end surface of the wheel hub, thereby limiting the position of the wheel hub.

[0030] A pad 17 is installed at the lower part of the pressure block 16. The pad 17 is made of rubber and contacts the end face of the wheel hub to protect the end face of the wheel hub.

[0031] The side wall limiting mechanism 5 includes an abutment block 24. The inner side of the abutment block 24 is arc-shaped, which can fit against the outer wall of the wheel hub, thereby better abutting against the outer wall of the wheel hub to limit the wheel hub. Two side plates 19 are connected to the abutment block 24. The side plates 19 have sliding grooves 20. A positioning screw 21 is connected to the side of the support block 14. The positioning screw 21 passes through the sliding groove 20, and the part of the positioning screw 21 that extends out of the sliding groove 20 is connected to a fixing nut 22. By tightening the fixing nut 22, the position of the side plate 19 is fixed, that is, the position of the abutment block 24 is fixed. When the abutment block 24 abuts against the outer wall of the wheel hub, it can limit the wheel hub in the horizontal direction. Loosening the fixing nut 22 allows the side plate 19 to move in the horizontal direction, thereby moving the abutment block 24 away from the wheel hub, so as not to affect the removal of the wheel hub.

[0032] The upper part of the mounting block 13 is connected to the support base 23, and the side plate 19 is placed on the support base 23. The support base 23 supports the side plate 19 to prevent it from shifting during the adjustment of the position of the side plate 19.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A positioning device for precision machining of aluminum alloy wheel hubs, characterized in that, The device includes a machining table (1) and a shaft hole positioning mechanism (2). The shaft hole positioning mechanism (2) is located at the middle position of the upper part of the machining table (1). The shaft hole positioning mechanism (2) includes a support plate (6). The support plate (6) has several moving grooves (7) arranged radially along the support plate (6). A moving block (8) is slidably arranged in the moving groove (7). A clamping block (9) is connected to the upper part of the moving block (8). The shaft hole positioning mechanism (2) also includes several... An adjusting block (10) is located in the middle of the clamping block (9). The adjusting block (10) is in the shape of a frustum, and the diameter of the lower end of the adjusting block (10) is smaller than the diameter of the upper end. The outer periphery of the adjusting block (10) is set against the inner side of the clamping block (9). An adjusting screw (11) is inserted through the middle position of the adjusting block (10). A linkage block (33) is connected to the adjusting screw (11). A threaded hole is opened in the middle position of the support plate (6). The lower end of the adjusting screw (11) is threaded to the threaded hole.

2. The positioning device for precision machining of aluminum alloy wheel hubs according to claim 1, characterized in that, The adjusting block (10) includes a cone block (31), the upper part of which has a groove (32), and the linkage block (33) is located in the groove (32).

3. The positioning device for precision machining of aluminum alloy wheel hubs according to claim 2, characterized in that, The adjusting block (10) includes a cover plate (34) located above the cone block (31), and a protrusion (35) is connected to the lower part of the cover plate (34), which is disposed inside the cone block (31).

4. The positioning device for precision machining of aluminum alloy wheel hubs according to claim 1, characterized in that, The support plate (6) has a guide groove (27) which is located below the moving groove (7) and is connected to the moving groove (7). The lower part of the moving block (8) is connected to a guide block (28), which is located inside the guide groove (27). A spring (29) is connected to the outside of the guide block (28), and the other end of the spring (29) is connected to the side wall of the guide groove (27).

5. The positioning device for precision machining of aluminum alloy wheel hubs according to claim 1, characterized in that, A protective block (12) is provided on the outside of the clamping block (9), and the protective block (12) is made of rubber.

6. The positioning device for precision machining of aluminum alloy wheel hubs according to claim 1, characterized in that, The shaft hole positioning mechanism (2) includes a mounting plate (25), which is installed at the middle position of the upper part of the processing table (1). A support sleeve (26) is connected to the upper part of the mounting plate (25), and the support plate (6) is installed on the upper end of the support sleeve (26).

7. The positioning device for precision machining of aluminum alloy wheel hubs according to claim 1, characterized in that, It also includes several auxiliary positioning mechanisms (3), which are evenly distributed around the shaft hole positioning mechanism (2).

8. The positioning device for precision machining of aluminum alloy wheel hubs according to claim 7, characterized in that, The auxiliary positioning mechanism (3) includes a mounting block (13), a top limiting mechanism (4), and a side wall limiting mechanism (5). A support block (14) is connected to the upper part of the mounting block (13). The top limiting mechanism (4) and the side wall limiting mechanism (5) are mounted on the support block (14). The top limiting mechanism (4) is located above the support block (14), and the side wall limiting mechanism (5) is located inside the support block (14).

9. The positioning device for precision machining of aluminum alloy wheel hubs according to claim 8, characterized in that, The upper part of the support block (14) is connected to the mounting screw (15), the mounting screw (15) passes through the pressure block (16), and the part of the mounting screw (15) that passes through the pressure block (16) is threadedly connected to a fixing nut (18).

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