Automobile hub center positioning device

Abstract

The utility model relates to the technical field of hub machining, in particular to an automobile hub center positioning device which comprises an operation table, a sliding frame, a driving assembly A, a sliding block B and a driving assembly B. The operation table is rotationally connected with a rotating disc which is provided with four sliding grooves. The sliding frame is slidably connected with the rotary disc and slidably connected with two sliding blocks A, each sliding block A is connected with a vertical rod, the vertical rods slide in the corresponding sliding grooves, inner cavities are formed in the vertical rods, and vertical grooves communicated with the inner cavities are formed in the vertical rods. When the driving assembly A is in a working state, the vertical rods synchronously get away from or get close to each other. The sliding block B slides in the inner cavity and is connected with the clamping block. The driving assembly B is in driving connection with the connecting rods, the connecting rods are connected with the sliding blocks B on the corresponding sides, and when the driving assembly B pushes the sliding blocks B upwards till the inclined faces of the clamping blocks abut against the upper walls of the vertical grooves, the clamping blocks automatically retract into the sliding blocks B. The hub center positioning and clamping device can quickly perform center positioning, clamping and fixing on hubs with center holes with different inner diameters, and is simple and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub processing, in particular to a vehicle wheel hub center positioning device. Background Art

[0002] The center positioning of the automobile wheel hub is to place the center hole of the wheel hub on a positioning tool that matches its center hole with the center hole as a reference after the center hole is initially processed on the wheel hub, and then press the inner wall of the center hole against it with the outward-expanding claws to achieve positioning.

[0003] For example, a Chinese patent with authorization announcement number CN212169642U discloses a bicycle wheel hub center positioning device. The general idea of ​​the device is to place two positioning blocks into the center hole of the wheel hub, rotate the drive rod, and through the cooperation of the gear on the drive rod and the racks on the two positioning blocks, the positioning blocks on both sides are moved away from each other until they are completely pressed against the inner wall of the center hole, thereby achieving the purpose of center positioning.

[0004] In this structure, the driving rod also needs to be pressed down and rotated to lock to prevent the gear from rotating. Although the overall structure is simple, in actual operation, it is necessary to complete the placement of the wheel hub - rotate the driving rod to make the positioning block contact the inner wall of the center hole - press the driving rod down and rotate it to lock - process - flip the driving rod to unlock and pull up the driving rod - rotate the driving rod in the opposite direction to make the gear drive the rack to slide in the opposite direction to shrink the spacing between the blocks on both sides - remove the wheel hub. The steps are cumbersome, and when the wheel hub is polished, its outer rings on both sides need to be processed. The wheel hub needs to be flipped and the above steps need to be repeated, which is time-consuming and labor-intensive. At the same time, the device lacks a clamping structure, and the wheel hub is prone to jumping during processing. Utility Model Content

[0005] The utility model aims to provide a vehicle wheel hub center positioning device in view of the problems existing in the background technology.

[0006] The technical solution of the utility model is a vehicle wheel hub center positioning device, which comprises an operating table, which is rotatably connected to a turntable, and four slide grooves are arranged on the turntable in a scattered manner around its axis.

[0007] A slide, the slide is slidably connected to the turntable, and the two slides are symmetrical about the center of the turntable, two sliders A are symmetrically and slidably arranged in the slide, each slider A is connected to a vertical rod, each slider A and the vertical rod are respectively located in the corresponding side slide groove and slidably connected to the inner wall thereof, an inner cavity is arranged in the vertical rod, and a vertical groove communicating with the inner cavity is arranged on the vertical rod.

[0008] Driving component A is connected to the turntable and drives the slides on both sides. In the working state, the driving component A drives the slides to slide, and cooperates with the slider A and the slide groove to synchronously adjust the distance between each vertical rod and the axis of the turntable.

[0009] The slider B is located in the inner cavity and is slidably connected to the inner wall thereof. The slider B is connected to the clamping block. A tensioning assembly connected to the clamping block is arranged in the slider B, and a bevel is arranged on the side of the clamping block away from the turntable.

[0010] And a driving component B, which drives and connects several connecting rods, each connecting rod is inserted into the corresponding side vertical rod along the bottom thereof and connected to the slider B. When the driving component B pushes the slider B upward until the inclined surface of the card block contacts the upper wall of the vertical groove, the card block automatically retracts into the slider B.

[0011] Preferably, an outer gear ring is arranged outside the turntable, a gear is rotatably arranged inside the operating table, the gear is meshed and connected with the outer gear ring, and a motor for driving the gear to rotate is arranged on the operating table.

[0012] Preferably, the inner cavity is a non-cylindrical cavity.

[0013] Preferably, the driving assembly A comprises a bidirectional module, which drives and connects two slides, and the slides on both sides are respectively connected to corresponding side slides.

[0014] Preferably, the upper wall of the inner cavity is higher than the upper wall of the vertical groove, and the height difference between the two is not less than the height of the slider B.

[0015] Preferably, the driving assembly B comprises a bracket, a movable plate and a hydraulic cylinder. The bracket is connected to the turntable, the movable plate is slidably connected to the bracket, and the movable plate is located below the turntable. The hydraulic cylinder is connected to the bracket and drives the movable plate, and the bottom of each connecting rod is connected to the movable plate.

[0016] Preferably, a plurality of limit grooves opposite to the slide grooves are arranged on the movable plate, and a limit block is arranged at the bottom of each connecting rod, and each limit block is respectively located in the corresponding side limit groove and is slidably connected thereto in the horizontal direction.

[0017] Compared with the prior art, the utility model has the following beneficial technical effects:

[0018] Four vertical rods are provided, and the vertical rods are utilized to synchronously slide outward in a scattered manner to realize the center positioning of wheel hubs with different inner diameter center holes, and a clamping block is provided on the vertical rod, and the clamping block rises and falls with the slider B, and the clamping block automatically retracts when the slider B rises to the limit position, so that the wheel hub can be removed and turned over or replaced with another wheel hub of the same specification without changing the vertical rod spacing. The utility model is simple and convenient to operate, saves time and labor, and the wheel hub will not jump when the wheel hub is processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the connection structure between the motor and the turntable;

[0021] Figure 3 It is a schematic diagram of the connection structure of various components on the turntable;

[0022] Figure 4 Schematic diagram of the internal structure of the vertical rod;

[0023] Figure 5 Schematic diagram of the connection structure of various components on the bracket.

[0024] Figure numerals: 1. operating table; 2. turntable; 201. slide groove; 3. outer gear ring; 4. motor; 5. gear; 6. slide; 7. slider A; 8. vertical rod; 801. inner cavity; 802. vertical groove; 9. bidirectional module; 10. slider B; 11. block; 12. connecting rod; 13. limit block; 14. bracket; 15. movable plate; 151. limit groove; 16. hydraulic cylinder. DETAILED DESCRIPTION

[0025] Embodiment 1

[0026] like Figure 1-Figure 5As shown, a vehicle wheel hub center positioning device proposed by the utility model comprises an operating table 1, a slide 6, a driving assembly A, a slider B10 and a driving assembly B. The operating table 1 is rotatably connected to a turntable 2, and four slide grooves 201 are arranged on the turntable 2 in a scattered manner around its axis. The slide 6 is slidably connected to the turntable 2, and the two slides 6 are symmetrical about the center of the turntable 2. Two sliders A7 are symmetrically and slidably arranged in the slide 6, and each slider A7 is respectively connected to a vertical rod 8. Each slider A7 and the vertical rod 8 are respectively located in the corresponding side slide groove 201 and slidably connected to its inner wall. An inner cavity 801 is arranged in the vertical rod 8, and a vertical groove 802 connected to the inner cavity 801 is arranged on the vertical rod 8. The inner cavity 801 is a non-cylindrical cavity. The upper wall of the inner cavity 801 is higher than the upper wall of the vertical groove 802, and the height difference between the two is not less than the height of the slider B10. The driving assembly A is connected to the turntable 2 and drives the slides 6 on both sides. The driving assembly A drives the slides 6 to slide in the working state, and cooperates with the slider A7 and the slide slot 201 to synchronously adjust the distance between each vertical rod 8 and the axis of the turntable 2. The driving assembly A includes but is not limited to a bidirectional module 9, which drives and connects two slides, and the slides on both sides are respectively connected to the corresponding side slides 6. The slider B10 is located in the inner cavity 801 and is slidably connected to its inner wall. The slider B10 is connected to the block 11. The tensioning assembly connected to the block 11 is set in the slider B10, and the block 11 is set on the side away from the turntable 2. The driving assembly B drives and connects a plurality of connecting rods 12, each connecting rod 12 is inserted into the corresponding side vertical rod 8 along the bottom thereof and connected to the slider B10. When the driving assembly B pushes the slider B10 upward until the inclined surface of the block 11 contacts the upper wall of the vertical slot 802, the block 11 automatically retracts into the slider B10. The driving assembly B includes a bracket 14, a movable plate 15 and a hydraulic cylinder 16. The bracket 14 is connected to the turntable 2, the movable plate 15 is slidably connected to the bracket 14, and the movable plate 15 is located below the turntable 2. The hydraulic cylinder 16 is connected to the bracket 14 and drives the movable plate 15. The bottom of each connecting rod 12 is connected to the movable plate 15. The movable plate 15 is provided with a plurality of limit grooves 151 opposite to each slide groove 201, and the bottom of each connecting rod 12 is provided with a limit block 13, and each limit block 13 is respectively located in the corresponding side limit groove 151 and is slidably connected thereto in the horizontal direction.

[0027] In this embodiment, in the initial state of the equipment operation, the distance between the four vertical rods 8 is shrunk to the minimum, and the slider B10 is in a high position. The staff puts the four vertical rods 8 through the center hole of the hub synchronously and places the hub on the turntable 2, and then starts the two-way module 9. The two-way module 9 drives the two-side slides 6 to move away synchronously. At this time, the slider A7 and the vertical rod 8 are limited by the direction of the slide groove 201 during the process of moving away, so the four vertical rods 8 move away in a scattered manner with the axis of the turntable 2 as the center, and each connecting rod 12 slides along the limiting groove 151. When all the vertical rods 8 are pressed against the inner wall of the center hole of the hub, the hydraulic cylinder 16 is started to pull down the movable plate 15. During the sliding process, the movable plate 15 pulls down the connecting rod 12 through the limiting block 13, thereby driving the slider B10 to slide down until the plane at the lower end of the clamping block 11 contacts the hub. At this time, the center positioning operation of the entire hub is completed, and the hub has high stability and will not jump during the processing operation. When the wheel hub needs to be replaced, the hydraulic cylinder 16 pushes up the slider B10 until the block 11 is completely retracted, and the wheel hub can be pulled up and removed. After repositioning, it can be fixed by only pulling down the slider B10.

[0028] Embodiment 2

[0029] like Figure 2 As shown, the automobile wheel hub center positioning device proposed by the utility model, compared with the first embodiment, an outer gear ring 3 is arranged on the outside of the turntable 2, a gear 5 is rotatably arranged inside the operating table 1, the gear 5 is meshed and connected with the outer gear ring 3, and a motor 4 is arranged on the operating table 1 to drive the gear 5 to rotate.

[0030] In this embodiment, during the process of cutting and grinding and polishing the edge of the hub, the motor 4 is started, the motor 4 drives the gear 5 to rotate, and then drives the turntable 2 to rotate through the outer gear ring 3, so as to facilitate the replacement of the processing operation point of the hub.

[0031] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A vehicle wheel hub center positioning device, characterized in that: include An operating table (1), the operating table (1) is rotatably connected to a turntable (2), and the turntable (2) is provided with four slide grooves (201) in a scattered manner around its axis; A slide (6), the slide (6) is slidably connected to the turntable (2), and the two slides (6) are symmetrical about the center of the turntable (2), two sliders A (7) are symmetrically and slidably arranged in the slide (6), each slider A (7) is respectively connected to a vertical rod (8), each slider A (7) and the vertical rod (8) are respectively located in a corresponding side slide groove (201) and slidably connected to the inner wall thereof, an inner cavity (801) is arranged in the vertical rod (8), and a vertical groove (802) communicating with the inner cavity (801) is arranged on the vertical rod (8); A driving assembly A, the driving assembly A is connected to the turntable (2) and drives the slides (6) on both sides. When in a working state, the driving assembly A drives the slides (6) to slide, and cooperates with the slider A (7) and the slide groove (201) to synchronously adjust the distance between each vertical rod (8) and the axis of the turntable (2); A slider B (10), the slider B (10) is located in the inner cavity (801) and is slidably connected to the inner wall thereof, the slider B (10) is connected to the clamping block (11), a tensioning assembly connected to the clamping block (11) is provided in the slider B (10), and a bevel is provided on a side of the clamping block (11) away from the rotating disk (2); And a driving component B, the driving component B drives and connects a plurality of connecting rods (12), each connecting rod (12) is inserted into the corresponding side vertical rod (8) along the bottom thereof and connected to the sliding block B (10), and when the driving component B pushes the sliding block B (10) upward until the inclined surface of the clamping block (11) abuts against the upper wall of the vertical groove (802), the clamping block (11) automatically retracts into the sliding block B (10).

2. The vehicle wheel hub center positioning device according to claim 1, characterized in that: An outer gear ring (3) is arranged outside the turntable (2), a gear (5) is rotatably arranged inside the operating table (1), the gear (5) is meshedly connected with the outer gear ring (3), and a motor (4) for driving the gear (5) to rotate is arranged on the operating table (1).

3. The vehicle wheel hub center positioning device according to claim 1, characterized in that: The inner cavity (801) is a non-cylindrical cavity.

4. The vehicle wheel hub center positioning device according to claim 1, characterized in that: The driving assembly A comprises a bidirectional module (9), the bidirectional module (9) drivingly connects two slides, and the slides on both sides are respectively connected to corresponding side slide frames (6).

5. The vehicle wheel hub center positioning device according to claim 1, characterized in that: The upper wall of the inner cavity (801) is higher than the upper wall of the vertical groove (802), and the height difference between the two is not less than the height of the slider B (10).

6. The vehicle wheel hub center positioning device according to claim 1, characterized in that: The driving assembly B comprises a bracket (14), a movable plate (15) and a hydraulic cylinder (16); the bracket (14) is connected to the turntable (2), the movable plate (15) is slidably connected to the bracket (14), and the movable plate (15) is located below the turntable (2); the hydraulic cylinder (16) is connected to the bracket (14) and drives the movable plate (15), and the bottom of each connecting rod (12) is connected to the movable plate (15).

7. The vehicle wheel hub center positioning device according to claim 1, characterized in that: A plurality of limit grooves (151) are arranged on the movable plate (15) and are opposite to the slide grooves (201). A limit block (13) is arranged at the bottom of each connecting rod (12). Each limit block (13) is located in a corresponding side limit groove (151) and is slidably connected thereto in a horizontal direction.

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