Quick clamping fixture for automobile wheel hub

Abstract

The utility model discloses a quick clamping fixture for automobile wheel hub relates to automobile wheel hub fixture technical field, including chassis, the fixed cylinder is fixedly connected with the chassis upper end surface, the rotating cylinder is rotatably connected with fixed cylinder upper end, the hollow rotary table is fixedly connected with the rotating cylinder upper end, the fixed cylinder inside is equipped with the drive assembly for driving rotating cylinder and rotates, the hollow rotary table upper end surface is fixedly connected with hexagonal support board, the utility model discloses the drive assembly that sets up can drive hollow rotary table and rotate in working time, and further can drive the wheel hub of clamping and rotate, simultaneously through the adapter that sets up can be connected to hexagonal pushboard in cylinder output end, makes the rotating action of hexagonal pushboard not influence the normal action of cylinder output end, and the adjusting hole on the setting of clamping plate can be corresponding to the position of inverted U slide's adjustment, and further can realize the clamping fixation of different diameter wheel hub in a certain range.

Description

Technical Field

[0001] This utility model relates to the field of automotive wheel hub clamping technology, specifically a quick clamping clamp for automotive wheel hubs. Background Technology

[0002] A car wheel hub is a cylindrical metal component that supports the tire from the inside. It is mounted on the axle in the center and is also called a steel rim or wheel. The wheel hub fixes the tire through the rim and is connected to the axle through the center hole. It needs to continuously bear the weight of the vehicle and evenly transfer the weight to the tire and finally distribute it to the road surface.

[0003] In the wheel hub processing, wheel hub clamps are needed to fix the wheel hub. For example, the pneumatic clamp for quick clamping of automobile wheel hubs proposed in authorization announcement number CN210524451U includes an automobile wheel hub and a clamp body. The clamp body includes a mounting plate, a precision T-screw, a lock nut, a precision angular contact bearing, grippers, a supporting needle roller bearing, a T-screw magnetic coupling, a motor magnetic coupling, and a pneumatic motor. During operation, it can drive the grippers to move synchronously, achieving quick clamping and loosening of the wheel hub.

[0004] However, the aforementioned wheel hub clamps can only clamp and loosen. During wheel hub processing, when it is necessary to process or inspect surfaces or holes at different angles of the wheel hub, the operator can only loosen the clamped wheel hub, adjust it to the target angle, and then re-clamp it. This method not only increases the number of operation steps and reduces work efficiency, but may also cause wheel hub positioning deviation due to repeated clamping, affecting the processing or inspection accuracy. To address the above problems, we provide a quick-clamping fixture for automotive wheel hubs to solve the aforementioned issues. Utility Model Content

[0005] The purpose of this invention is to provide a quick clamping fixture for automobile wheel hubs to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A quick-clamping fixture for automotive wheel hubs includes a chassis. A fixed cylinder is fixedly connected to the upper surface of the chassis. A rotating cylinder is rotatably connected to the upper end of the fixed cylinder. A hollow turntable is fixedly connected to the upper end of the rotating cylinder. A drive assembly for driving the rotating cylinder to rotate is provided inside the fixed cylinder. A hexagonal support plate is fixedly connected to the upper surface of the hollow turntable. Rectangular grooves are provided in the spaces of the hexagonal support plate on the chassis. A sliding rod is fixedly connected to each rectangular groove. An L-shaped sliding block is slidably connected to each sliding rod. The L-shaped sliding block is slidably connected to the rectangular groove. A return spring passes through the sliding rod on the side of the L-shaped sliding block and the rectangular groove near the middle of the hollow turntable. A push assembly for pushing the L-shaped sliding block to move towards the middle of the hollow turntable is provided inside the hollow turntable. A clamping assembly for fixing the wheel hub is provided on the upper end of each L-shaped sliding block.

[0008] As a further embodiment of this utility model: the driving component includes a ring gear, which is fixedly connected to the upper end of the rotating cylinder. A servo motor is fixedly connected to the chassis at one side of the fixed cylinder. A motor gear is installed at the output end of the servo motor, and the motor gear meshes with the ring gear.

[0009] As a further embodiment of this utility model: the pushing component includes a limiting slide rod, which is fixedly connected to both sides of the upper surface inside the hollow turntable. A hexagonal push plate is slidably connected between the two limiting slide rods. A connecting rod is rotatably connected to the corner of each hexagonal push plate. The upper end of the connecting rod is rotatably connected to the end of the L-shaped sliding block near the middle of the hollow turntable. A cylinder is fixedly connected to the chassis at the middle position of the fixed cylinder. The output end of the cylinder is rotatably connected to the hexagonal push plate using an adapter.

[0010] As a further embodiment of this utility model: the adapter includes two limiting discs, both of which are fixedly connected to the cylinder output end position. The hexagonal push plate has an avoidance hole in the middle, and the cylinder output end passes through the avoidance hole. The limiting discs are distributed on the upper and lower sides of the hexagonal push plate at the cylinder output end. Thrust bearings are installed between the limiting discs and the hexagonal push plate.

[0011] As a further embodiment of this utility model: the clamping assembly includes a clamping plate, which is fixedly connected to the upper end of the L-shaped sliding block. The clamping plate has several adjustment holes, and an inverted U-shaped sliding plate is slidably connected to the clamping plate. A gripper is fixedly connected to the upper end of the inverted U-shaped sliding plate. Two through holes matching the adjustment holes are opened on the inverted U-shaped sliding plate, and bolts are installed between the through holes and the adjustment holes.

[0012] As a further improvement of this utility model, the chassis edge is provided with a number of mounting holes.

[0013] As a further improvement of this utility model, the thickness of the hexagonal support plate is greater than the thickness of the clamping plate.

[0014] As a further improvement of this utility model, the connecting inclined surface of the hollow turntable and the rotating cylinder and the lower end of the circumferential surface of the fixed cylinder are both provided with connecting holes.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention features a drive assembly that allows the hollow turntable to rotate during operation, thereby rotating the clamped wheel hub. A connecting piece connects the hexagonal push plate to the cylinder output, ensuring that the rotation of the hexagonal push plate does not affect the normal operation of the cylinder output. Furthermore, adjustment holes on the clamping plate allow for adjustment of the position of the inverted U-shaped sliding plate, enabling the clamping and fixing of wheel hubs of different diameters within a certain range. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the top structure of the hollow turntable in this utility model.

[0020] Figure 4 This is a schematic diagram of the clamping component in this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the adapter in this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the present invention when clamping a wheel hub.

[0023] The components include: 1. Chassis; 2. Fixed cylinder; 3. Rotating cylinder; 4. Hollow turntable; 5. Hexagonal support plate; 6. Gripper; 7. Clamping plate; 8. Cylinder; 9. Hexagonal push plate; 10. L-shaped sliding block; 11. Return spring; 12. Limiting slide rod; 13. Adapter; 14. Servo motor; 15. Connecting rod; 16. Ring gear; 17. Motor gear; 18. Sliding rod; 19. Rectangular slide groove; 20. Inverted U-shaped slide plate; 21. Adjustment hole; 22. Bolt;

[0024] 131. Thrust bearing; 132. Limiting disc. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1 and Figure 2 In this embodiment of the present invention, a quick clamping fixture for automobile wheel hubs includes a chassis 1, the chassis 1 having a plurality of mounting holes on its edge; a fixed cylinder 2 is fixedly connected to the upper end face of the chassis 1, a rotating cylinder 3 is rotatably connected to the upper end of the fixed cylinder 2, a hollow turntable 4 is fixedly connected to the upper end of the rotating cylinder 3, and a connecting inclined surface of the hollow turntable 4 and the rotating cylinder 3 and the lower end of the circumferential surface of the fixed cylinder 2 are both provided with connecting holes;

[0027] Please see Figure 2 The fixed cylinder 2 is equipped with a drive assembly for driving the rotating cylinder 3 to rotate. The drive assembly includes a ring gear 16, which is fixedly connected to the upper end of the rotating cylinder 3. A servo motor 14 is fixedly connected to one side of the chassis 1 inside the fixed cylinder 2. A motor gear 17 is installed at the output end of the servo motor 14, and the motor gear 17 meshes with the ring gear 16. During operation, the servo motor 14 drives the motor gear 17 to rotate, and the rotation of the motor gear 17 drives the ring gear 16 to rotate. The rotation of the ring gear 16 can drive the hollow turntable 4 to rotate, which in turn can drive the clamped wheel hub to rotate.

[0028] Please see Figures 2-3 The hollow turntable 4 has a hexagonal support plate 5 fixedly connected to its upper end face. The chassis 1 has rectangular sliding grooves 19 in the spaces of the hexagonal support plate 5. Sliding rods 18 are fixedly connected in the rectangular sliding grooves 19. L-shaped sliding blocks 10 are slidably connected to the sliding rods 18. The L-shaped sliding blocks 10 are slidably connected to the rectangular sliding grooves 19. A return spring 11 is provided between the sliding rods 18 and the side of the L-shaped sliding blocks 10 and the rectangular sliding grooves 19 near the middle of the hollow turntable 4. The hollow turntable 4 has a pushing component for pushing the L-shaped sliding blocks 10 to move towards the middle of the hollow turntable 4. The pushing component can drive the L-shaped sliding blocks 10 to move synchronously towards the center of the hollow turntable 4 when clamping the wheel hub, thereby driving the grippers 6 to move synchronously to clamp the wheel hub.

[0029] Please see Figure 2 and Figure 5The pushing assembly includes a limiting slide rod 12, which is fixedly connected to both sides of the upper surface inside the hollow turntable 4. A hexagonal push plate 9 is slidably connected between the two limiting slide rods 12. A connecting rod 15 is rotatably connected to the corner of each hexagonal push plate 9. The upper end of the connecting rod 15 is rotatably connected to the end of the L-shaped sliding block 10 near the middle of the hollow turntable 4. A cylinder 8 is fixedly connected to the chassis 1 at the middle position of the fixed cylinder 2. The output end of the cylinder 8 is rotatably connected to the hexagonal push plate 9 by an adapter 13. The thickness of the hexagonal support plate 5 is greater than the thickness of the clamping plate 7. When clamping the wheel hub, the output end of the cylinder 8 moves to drive the hexagonal push plate 9 to move upward. The upward movement of the hexagonal push plate 9 drives the connecting rod 15. The movement of the connecting rod 15 drives the L-shaped sliding block 10 to move along the sliding rod 18, so that multiple L-shaped sliding blocks 10 move synchronously towards the center of the hollow turntable 4. Then, the L-shaped sliding block 10 drives the gripper 6 to fix the wheel hub.

[0030] Please see Figure 5 The adapter 13 includes two limiting plates 132, both of which are fixedly connected to the output end of the cylinder 8. The hexagonal push plate 9 has a clearance hole in the middle, through which the output end of the cylinder 8 passes. The limiting plates 132 are distributed on the upper and lower sides of the hexagonal push plate 9 at the output end of the cylinder 8. Thrust bearings 131 are installed between the limiting plates 132 and the hexagonal push plate 9. The thrust bearings 131 allow the output end of the cylinder 8 to be rotatably connected to the hexagonal push plate 9, so that the rotation of the hexagonal push plate 9 will not affect the cylinder 8. At the same time, the thrust bearings 131 can withstand the thrust, so that when the output end of the cylinder 8 moves, it can push the hexagonal push plate 9 to move up and down accordingly.

[0031] Please see Figure 2 and Figure 4 Each L-shaped sliding block 10 has a clamping assembly for fixing the wheel hub at its upper end. The clamping assembly includes a clamping plate 7, which is fixedly connected to the upper end of the L-shaped sliding block 10. The clamping plate 7 has several adjustment holes 21. An inverted U-shaped sliding plate 20 is slidably connected to the clamping plate 7. A claw 6 is fixedly connected to the upper end of the inverted U-shaped sliding plate 20. The inverted U-shaped sliding plate 20 has two through holes that match the adjustment holes 21. A bolt 22 is installed between the through holes and the adjustment holes 21. When it is necessary to adjust the position of the claw 6, the bolt 22 can be removed first, and then the inverted U-shaped sliding plate 20 can be slid to adjust it. After adjusting it to a suitable position, the bolt 22 can be inserted between the through holes and the adjustment holes 21 to lock the position of the inverted U-shaped sliding plate 20.

[0032] Please see Figures 1-6The working principle of this utility model is as follows: When in use, the wheel hub to be clamped is placed on the hexagonal support plate 5. Then, the output end of the cylinder 8 drives the hexagonal push plate 9 to move upward. The upward movement of the hexagonal push plate 9 drives the connecting rod 15. The movement of the connecting rod 15 drives the L-shaped sliding block 10 to move along the sliding rod 18, so that multiple L-shaped sliding blocks 10 move synchronously towards the center of the hollow turntable 4. Then, the L-shaped sliding block 10 drives the gripper 6 to clamp the wheel hub. When the clamped wheel hub needs to be rotated, the servo motor 14 drives the motor gear 17 to rotate. The rotation of the motor gear 17 drives the ring gear 16 to rotate. The rotation of the ring gear 16 can drive the hollow turntable 4 to rotate, which in turn can drive the clamped wheel hub to rotate.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-clamping fixture for automobile wheel hubs, comprising a chassis (1), characterized in that: A fixed cylinder (2) is fixedly connected to the upper end of the chassis (1). A rotating cylinder (3) is rotatably connected to the upper end of the fixed cylinder (2). A hollow turntable (4) is fixedly connected to the upper end of the rotating cylinder (3). A drive assembly for driving the rotating cylinder (3) to rotate is provided inside the fixed cylinder (2). A hexagonal support plate (5) is fixedly connected to the upper end of the hollow turntable (4). A rectangular slide groove (19) is provided in each space of the hexagonal support plate (5) on the chassis (1). A sliding rod (18) is fixedly connected in each of the rectangular slide grooves (19). Each sliding rod (18) is slidably connected to an L-shaped sliding block (10), and the L-shaped sliding block (10) is slidably connected to a rectangular sliding groove (19). A return spring (11) is provided between the side of the sliding rod (18) near the middle of the L-shaped sliding block (10) and the rectangular sliding groove (19). A push assembly for pushing the L-shaped sliding block (10) to move towards the middle of the hollow turntable (4) is provided inside the hollow turntable (4). A clamping assembly for fixing the wheel hub is provided at the upper end of each L-shaped sliding block (10).

2. The quick-clamping fixture for automobile wheel hubs according to claim 1, characterized in that, The drive assembly includes a ring gear (16), which is fixedly connected to the upper end of the rotating cylinder (3). A servo motor (14) is fixedly connected to the chassis (1) on one side inside the fixed cylinder (2). A motor gear (17) is installed at the output end of the servo motor (14), and the motor gear (17) meshes with the ring gear (16).

3. The quick-clamping fixture for automobile wheel hubs according to claim 1, characterized in that, The pushing assembly includes a limiting slide rod (12), which is fixedly connected to both sides of the upper surface inside the hollow turntable (4). A hexagonal push plate (9) is slidably connected between the two limiting slide rods (12). A connecting rod (15) is rotatably connected to the corner of the hexagonal push plate (9). The upper end of the connecting rod (15) is rotatably connected to the end of the L-shaped sliding block (10) near the middle of the hollow turntable (4). A cylinder (8) is fixedly connected to the chassis (1) in the middle of the fixed cylinder (2). The output end of the cylinder (8) is rotatably connected to the hexagonal push plate (9) by an adapter (13).

4. The quick-clamping fixture for automobile wheel hubs according to claim 3, characterized in that, The adapter (13) includes two limiting plates (132), both of which are fixedly connected to the output end of the cylinder (8). The hexagonal push plate (9) has a clearance hole in the middle, and the output end of the cylinder (8) passes through the clearance hole. The limiting plates (132) are distributed on the upper and lower sides of the hexagonal push plate (9) at the output end of the cylinder (8). Thrust bearings (131) are installed between the limiting plates (132) and the hexagonal push plate (9).

5. The quick-clamping fixture for automobile wheel hubs according to claim 1, characterized in that, The clamping assembly includes a clamping plate (7), which is fixedly connected to the upper end of the L-shaped sliding block (10). The clamping plate (7) has several adjustment holes (21). An inverted U-shaped sliding plate (20) is slidably connected to the clamping plate (7). A gripper (6) is fixedly connected to the upper end of the inverted U-shaped sliding plate (20). Two through holes matching the adjustment holes (21) are opened on the inverted U-shaped sliding plate (20). Bolts (22) are installed between the through holes and the adjustment holes (21).

6. The quick-clamping fixture for automobile wheel hubs according to claim 1, characterized in that, The chassis (1) has several mounting holes on its edge.

7. The quick-clamping fixture for automobile wheel hubs according to claim 5, characterized in that, The thickness of the hexagonal support plate (5) is greater than the thickness of the clamping plate (7).

8. The quick-clamping fixture for automobile wheel hubs according to claim 1, characterized in that, The hollow turntable (4) and the rotating cylinder (3) have connecting inclined surfaces and the lower end of the circumferential surface of the fixed cylinder (2) are all provided with connecting holes.

Images