Fixing jig for machining air tap hole of hub

Abstract

The utility model provides a fixing jig for machining a hub air tap hole, which relates to the technical field of hub machining and comprises a workbench, three openings which are uniformly distributed are formed in the top of the workbench in a penetrating manner, clamping plates are mounted in the three openings in a sliding manner, top plates are fixedly mounted at the tops of the clamping plates, and slots are formed in the outer walls of the clamping plates; limiting grooves are formed in the inner walls of the inserting grooves, and springs are fixedly mounted on the inner walls of the limiting grooves; according to the utility model, when the rubber plate is seriously abraded, a worker pulls the pulling plate, the pulling plate drives the clamping block to move upwards through the connecting rod until the clamping block enters the limiting groove and the spring is compressed, and at the moment, the worker can pull out the insertion plate, then replace a new rubber plate and insert the new insertion plate into the insertion groove; and the clamping blocks enter the clamping grooves under the elastic action of the springs to fix the insertion plates, so that the replacement efficiency is improved, the rubber plates are conveniently and timely replaced, and unstable fixation is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub processing, in particular to a fixing jig for processing a wheel hub air nozzle hole. Background Art

[0002] Currently, when drilling a wheel hub, the workpiece is positioned by using a sleeve to locate the center hole. There is an identification boss point on the rough material air nozzle to facilitate air nozzle hole positioning when drilling the air nozzle hole. The air nozzle position is controlled within ±0.25°. Since the identification boss point on the rough material air nozzle is relatively small, it is difficult to visually judge when the air nozzle position exceeds the control ±0.25° during processing, and defects cannot be discovered and prevented in time. The air nozzle position is controlled by three-coordinate measurement, and the process inspection frequency is about once every 1-2 hours. If the air nozzle position deviation is found to exceed the control range after three-coordinate measurement, it is possible that defects have already been produced in batches. Moreover, the position of the wheel hub air nozzle cannot be determined by three-coordinate measurement for each piece, but must be visually determined by the operator. It is inevitable that misjudgment will lead to defective outflow, causing risks to customers.

[0003] In the prior art, when machining the hub air valve hole, a fixing jig is used to ensure that the hub maintains a stable position during machining and prevent the hub from shifting or shaking. However, during use, the clamping mechanism of the fixing jig is prone to wear after prolonged contact with the hub. Wear may cause unstable fixation, thereby affecting machining accuracy. Utility Model Content

[0004] The utility model mainly provides a fixing jig for machining a hub air nozzle hole, which is convenient for improving replacement efficiency and preventing unstable fixation.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a fixing jig for processing the hub air nozzle hole, comprising: a workbench, three evenly distributed openings are opened through the top of the workbench, and a splint is slidably installed inside the three openings, a top plate is fixedly installed on the top of the splint, a slot is opened on the outer wall of the splint, a limiting slot is opened on the inner wall of the slot, a spring is fixedly installed on the inner wall of the limiting slot, a clamping block is fixedly installed on the bottom of the spring, a connecting rod is fixedly installed on the top of the clamping block, the top of the connecting rod passes through the splint and the top plate and is fixedly installed with a pull plate, an insert plate is slidably installed in the slot, a clamping slot is opened through the top of the insert plate, a connecting plate is fixedly installed on the outer wall of the insert plate, and a rubber plate is fixedly installed on the outer wall of the connecting plate.

[0006] Preferably, threaded holes are formed through the tops of the three top plates, threaded rods are threadedly connected inside the threaded holes, a stop block is fixedly installed at the bottom of the threaded rod, and a handle is fixedly installed at the top of the threaded rod. When the staff rotates the three handles, the threaded rod rotates, and the threaded rod descends along the threaded holes, thereby driving the stop block to descend, and the bottom of the stop block contacts the top of the wheel hub edge, further enhancing stability.

[0007] Preferably, a U-shaped plate is fixedly installed on the bottom of the workbench, and an electric telescopic rod is fixedly installed on the bottom of the U-shaped plate, the telescopic end of the electric telescopic rod passes through the U-shaped plate and is fixedly installed on the movable plate, and a first connecting block is fixedly installed on the top of the movable plate, and a rocker is rotatably installed inside the first connecting block, and a second connecting block is rotatably installed on one end of the rocker, and the three second connecting blocks are respectively fixedly connected to the bottoms of the three splints. When the staff starts the electric telescopic rod, the telescopic end of the electric telescopic rod retracts, and the movable plate descends, and then the three splints are driven closer to each other through the rocker until the three rubber plates are in contact with the wheel hub. At this time, the wheel hub is clamped, which is convenient for clamping wheels of different sizes.

[0008] Preferably, sliders are fixedly mounted on the outer walls of the three splints, and a sliding groove is provided on the inner wall of the opening. The sliders are slidably connected to the sliding groove to limit the splints and prevent them from moving up and down.

[0009] Preferably, a positioning rod is fixedly installed on the top of the workbench to position the wheel hub to prevent it from being misaligned.

[0010] Preferably, the outer walls of the three plug-in boards are respectively fitted with the inner walls of the three slots, and the outer wall of the card block is fitted with the inner wall of the card slot. When the card block enters the card slot, the plug-in board is fixed and will not shake.

[0011] Preferably, support frames are fixedly installed at the four corners of the bottom of the workbench to support the entire device.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the utility model, when the rubber plate is seriously worn, the staff pulls the pull plate, and the pull plate drives the card block to move upward through the connecting rod until the card block enters the limit slot and the spring is compressed. At this time, the staff can pull out the plug plate and replace it with a new rubber plate. Insert the new plug plate into the slot. When the card slot moves to the bottom of the card block, the card block enters the card slot under the elastic force of the spring and fixes the plug plate, thereby improving the replacement efficiency, facilitating timely replacement of the rubber plate, and preventing unstable fixation.

[0014] 2. In the present invention, when the three rubber plates are in contact with the wheel hub, the staff rotates the three handles, the threaded rod rotates, and the threaded rod descends along the threaded hole, thereby driving the stop block to descend, and the bottom of the stop block contacts the top of the wheel hub edge, further enhancing stability and preventing the wheel hub from shaking up and down during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides an overall three-dimensional diagram of a fixing fixture for machining a wheel hub air nozzle hole;

[0016] Figure 2 This is a stereoscopic view of the entire fixture for machining a hub air nozzle hole proposed in the present invention from another perspective;

[0017] Figure 3 A cross-sectional view of a workbench for a fixed fixture for machining a hub air nozzle hole is provided for the utility model;

[0018] Figure 4 The utility model provides a cross-sectional view of a clamping plate of a fixing fixture for machining a wheel hub air nozzle hole.

[0019] Legend: 1. Workbench; 2. Support frame; 3. Positioning rod; 4. Opening; 5. Clamp; 6. U-shaped plate; 7. Electric telescopic rod; 8. Moving plate; 9. First connecting block; 10. Rocker; 11. Second connecting block; 12. Slide groove; 13. Slider; 14. Top plate; 15. Threaded hole; 16. Threaded rod; 17. Handle; 18. Block; 19. Insert plate; 20. Slot; 21. Connecting plate; 22. Rubber plate; 23. Slot; 24. Limiting groove; 25. Spring; 26. Block; 27. Connecting rod; 28. Pull plate. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] See also Figures 1-4The utility model provides a technical solution: a fixing jig for processing wheel hub air nozzle holes, comprising: a workbench 1, three evenly distributed openings 4 are opened through the top of the workbench 1, and a plywood 5 is slidably installed inside the three openings 4, a top plate 14 is fixedly installed on the top of the plywood 5, a slot 23 is opened on the outer wall of the plywood 5, a limiting slot 24 is opened on the inner wall of the slot 23, a spring 25 is fixedly installed on the inner wall of the limiting slot 24, a clamping block 26 is fixedly installed on the bottom of the spring 25, a connecting rod 27 is fixedly installed on the top of the clamping block 26, the top of the connecting rod 27 passes through the plywood 5 and the top plate 14 and is fixedly installed with a pull plate 28, an inserting plate 19 is slidably installed in the slot 23, a clamping slot 20 is opened through the top of the inserting plate 19, a connecting plate 21 is fixedly installed on the outer wall of the inserting plate 19, and a rubber plate 22 is fixedly installed on the outer wall of the connecting plate 21.

[0023] like Figure 4 As shown, threaded holes 15 are formed through the tops of the three top plates 14, and threaded rods 16 are threadedly connected to the inside of the threaded holes 15. A stopper 18 is fixedly installed at the bottom of the threaded rod 16, and a handle 17 is fixedly installed at the top of the threaded rod 16. When the staff rotates the three handles 17, the threaded rod 16 rotates, and the threaded rod 16 descends along the threaded holes 15, thereby driving the stopper 18 to descend, and the bottom of the stopper 18 contacts the top of the hub edge, further enhancing stability.

[0024] like Figure 2 As shown, a U-shaped plate 6 is fixedly installed at the bottom of the workbench 1, and an electric telescopic rod 7 is fixedly installed at the bottom of the U-shaped plate 6. The telescopic end of the electric telescopic rod 7 passes through the U-shaped plate 6 and is fixedly installed with a movable plate 8. A first connecting block 9 is fixedly installed on the top of the movable plate 8. A rocker 10 is rotatably installed inside the first connecting block 9, and a second connecting block 11 is rotatably installed at one end of the rocker 10. The three second connecting blocks 11 are respectively fixedly connected to the bottoms of the three splints 5. The staff starts the electric telescopic rod 7, the telescopic end of the electric telescopic rod 7 retracts, and the movable plate 8 descends, and then drives the three splints 5 to approach each other through the rocker 10 until the three rubber plates 22 are in contact with the wheel hub. At this time, the wheel hub is clamped, which is convenient for clamping wheels of different sizes.

[0025] like Figure 3 As shown, sliders 13 are fixedly mounted on the outer walls of the three splints 5, and a slide groove 12 is provided on the inner wall of the opening 4. The sliders 13 are slidably connected to the slide groove 12 to limit the splints 5 and prevent the splints 5 from moving up and down.

[0026] like Figure 1 As shown, a positioning rod 3 is fixedly installed on the top of the workbench 1 to position the wheel hub to prevent it from being misaligned.

[0027] like Figure 4As shown, the outer walls of the three inserting plates 19 are respectively fitted with the inner walls of the three slots 23, and the outer wall of the card block 26 is fitted with the inner wall of the card slot 20. When the card block 26 enters the card slot 20, the inserting plate 19 is fixed and will not shake.

[0028] like Figure 1 As shown, support frames 2 are fixedly installed at the four corners of the bottom of the workbench 1 to support the entire device.

[0029] The usage and working principle of this device: When in use, the robotic arm passes the center hole of the wheel hub through the positioning rod 3 and places the wheel hub on the workbench 1. Then the staff starts the electric telescopic rod 7, the telescopic end of the electric telescopic rod 7 retracts, the movable plate 8 descends, and then drives the three clamping plates 5 to approach each other through the rocker 10 until the three rubber plates 22 are in contact with the wheel hub. At this time, the wheel hub is clamped, which is convenient for clamping wheel hubs of different sizes. Then the staff rotates the three handles 17, the threaded rod 16 rotates, and the threaded rod 16 descends along the threaded hole 15, thereby driving the block 18 to descend. The bottom of the block 18 contacts the top of the wheel hub edge, further enhancing the stability and preventing the wheel hub from shaking up and down during processing. When the rubber sheet 22 is severely worn, the staff pulls the pull plate 28, and the pull plate 28 drives the block 26 to move upward through the connecting rod 27 until the block 26 enters the limit groove 24 and the spring 25 is compressed. At this time, the staff can pull out the plug plate 19, and then replace the new rubber sheet 22, and insert the new plug plate 19 into the slot 23. When the card slot 20 moves to the bottom of the block 26, the block 26 enters the card slot 20 under the elastic force of the spring 25, fixing the plug plate 19, thereby improving the replacement efficiency, facilitating timely replacement of the rubber sheet 22, and preventing unstable fixation.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A fixture for machining a hub air nozzle hole, characterized in that: include: A workbench (1) is provided with three evenly distributed openings (4) on the top of the workbench (1), a clamping plate (5) is slidably installed inside the three openings (4), a top plate (14) is fixedly installed on the top of the clamping plate (5), a slot (23) is provided on the outer wall of the clamping plate (5), a limiting slot (24) is provided on the inner wall of the slot (23), a spring (25) is fixedly installed on the inner wall of the limiting slot (24), and a card is fixedly installed on the bottom of the spring (25). A block (26) is provided, a connecting rod (27) is fixedly installed on the top of the card block (26), the top of the connecting rod (27) passes through the clamping plate (5) and the top plate (14) and is fixedly installed with a pull plate (28), an inserting plate (19) is slidably installed inside the slot (23), a card slot (20) is opened through the top of the inserting plate (19), a connecting plate (21) is fixedly installed on the outer wall of the inserting plate (19), and a rubber plate (22) is fixedly installed on the outer wall of the connecting plate (21).

2. A fixing jig for machining a hub air valve hole according to claim 1, characterized in that: The tops of the three top plates (14) are all provided with threaded holes (15), the threaded holes (15) are internally threadedly connected with threaded rods (16), the bottoms of the threaded rods (16) are fixedly provided with blocks (18), and the tops of the threaded rods (16) are fixedly provided with handles (17).

3. The fixing jig for machining a hub air valve hole according to claim 1, characterized in that: A U-shaped plate (6) is fixedly installed at the bottom of the workbench (1), an electric telescopic rod (7) is fixedly installed at the bottom of the U-shaped plate (6), the telescopic end of the electric telescopic rod (7) passes through the U-shaped plate (6) and is fixedly installed with a movable plate (8), a first connecting block (9) is fixedly installed on the top of the movable plate (8), a rocker (10) is rotatably installed inside the first connecting block (9), a second connecting block (11) is rotatably installed at one end of the rocker (10), and three second connecting blocks (11) are respectively fixedly connected to the bottoms of three splints (5).

4. The fixing jig for machining a wheel hub air nozzle hole according to claim 1, characterized in that: Slide blocks (13) are fixedly mounted on the outer walls of the three clamping plates (5), a sliding groove (12) is provided on the inner wall of the opening (4), and the slide blocks (13) are slidably connected to the sliding groove (12).

5. The fixing jig for machining a hub air valve hole according to claim 2, characterized in that: A positioning rod (3) is fixedly mounted on the top of the workbench (1).

6. The fixing jig for machining a hub air nozzle hole according to claim 1, characterized in that: The outer walls of the three inserting plates (19) are respectively fitted with the inner walls of the three slots (23), and the outer wall of the card block (26) is fitted with the inner wall of the card slot (20).

7. The fixing jig for machining a hub air nozzle hole according to claim 1, characterized in that: Support frames (2) are fixedly mounted on the four corners of the bottom of the workbench (1).

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