A steering wheel polishing device

Abstract

The utility model belongs to the field of polishing device, concretely relates to a steering wheel polishing device, including base, the upper end of base is equipped with the chuck through bearing, the upper end fixedly connected with support block of chuck, the upper end of support block is contacted with the framework, the upper end slidingly connected with the locating pawl of chuck, the upper end fixedly connected with the spline shaft of support block, the inside of chuck is provided with drive mechanism, the lower part fixedly connected with worm wheel of the connecting shaft outside of chuck. The utility model adds the structure such as central bevel gear, screw rod and locating pawl on chuck, can drive multiple screw rods to rotate through central bevel gear in the process of using, can drive multiple locating pawls to position and hold the framework through the thread cooperation between screw rod and threaded frame in the process of rotating, so that can make the stable holding of the framework, and at the same time, it is suitable for multiple models of framework.

Description

Technical Field

[0001] This utility model relates to the field of polishing device technology, specifically to a steering wheel polishing device. Background Technology

[0002] As a key component of the automotive control system, the steering wheel typically has a complex frame structure, often consisting of irregular three-dimensional curved surfaces with reinforcing ribs and spokes. During the manufacturing process, after casting or die-casting, the steering wheel frame may have defects such as burrs, flash, and parting lines on its surface. According to a proposed automotive steering wheel polishing device (patent publication number CN111761465A), this invention has a simple structure, is safe and convenient to use, and can effectively protect and recover the splashes generated during polishing, thereby further ensuring cleanliness during on-site operations.

[0003] In the process of realizing this utility model, the inventors discovered that: To improve the automation level of grinding, some simple fixtures combined with robotic arms have emerged in the market. However, due to the special shape and irregular structure of the steering wheel frame, general-purpose fixtures often struggle to achieve fast, accurate, and stable clamping. Especially during grinding, the frame needs to rotate for omnidirectional processing, which places higher demands on the positioning accuracy and drive stability of the fixture. Many existing devices may not effectively adapt to the size differences of different steering wheel models, or there is a risk of uneven clamping force causing the frame to loosen or shift during rotation, thus affecting grinding accuracy and even leading to product scrap. Furthermore, there is the problem of unstable steering wheel rotation during the grinding process. Therefore, improvements to existing technologies are needed. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, this utility model proposes a steering wheel polishing device.

[0005] Therefore, the technical solution of this utility model is as follows: a steering wheel polishing device, including a base, a clamping plate mounted on the upper end of the base via a bearing, a support block fixedly connected to the upper end of the clamping plate, a frame in contact with the upper end of the support block, a positioning claw slidably connected to the upper end of the clamping plate, a splined shaft fixedly connected to the upper end of the support block, a drive mechanism provided inside the clamping plate, a worm gear fixedly connected to the lower outer side of the connecting shaft of the clamping plate, a drive cover fixedly installed at the lower end of the base, a worm gear mounted inside the drive cover via a bearing, a motor fixedly installed at the lower end of the base, and an electric telescopic rod fixedly installed at the upper end of the base.

[0006] Preferably, the positioning claw contacts the skeleton, and the spline shaft is slidably connected to the skeleton, so that the spline shaft can position the skeleton.

[0007] Preferably, the output shaft of the motor is fixedly connected to the worm, the worm meshes with the worm wheel, and the worm can drive the worm wheel to rotate.

[0008] Preferably, a grinder is fixedly connected to the upper end of the output end of the electric telescopic rod, and the grinding cover of the grinder is located on the outside of the frame, so that the grinder can grind the frame.

[0009] Preferably, the driving mechanism includes a mounting frame, with multiple pairs of evenly distributed mounting frames fixedly connected to the inner bottom of the clamping plate. Each pair of mounting frames has a screw mounted inside via a bearing, and a threaded bracket is threadedly connected to the outer side of the screw. A central bevel gear is mounted on the inner bottom of the clamping plate via a bearing, and a bevel gear is fixedly connected to one end of the screw. A bevel gear shaft is mounted inside the clamping plate via a bearing, and a support frame is fixedly connected to the inner bottom of the clamping plate. The central bevel gear can rotate by driving multiple bevel gears.

[0010] Preferably, the threaded frame is fixedly connected to the positioning claw, and the first bevel gear meshes with the central bevel gear, so that the threaded frame can drive the positioning claw to move.

[0011] Preferably, the support frame is connected to the bevel gear shaft via a bearing, the bevel gear shaft meshes with the central bevel gear, and a handwheel is fixedly connected to one end of the bevel gear shaft, which can drive the bevel gear shaft to rotate.

[0012] Beneficial effects: Compared with the prior art, this utility model adds a central bevel gear, screws, and positioning claws to the clamping plate. During use, the central bevel gear can simultaneously drive multiple screws to rotate. During the rotation of the screws, the screws can simultaneously drive multiple positioning claws to position and clamp the frame through the threaded engagement with the threaded bracket. This allows for stable clamping of the frame and suitability for various frame models. By adding a worm gear, drive cover, and motor to the base, the meshing between the worm gear and worm wheel can drive the clamping plate to rotate during the grinding of the steering wheel frame. The clamping plate can stably grind the surface during rotation, thereby effectively improving the grinding quality. Attached Figure Description

[0013] Figure 1 The overall three-dimensional structure of this utility model Figure 1 .

[0014] Figure 2 The overall three-dimensional structure of this utility model Figure 2 .

[0015] Figure 3 yes Figure 1 A three-dimensional sectional view.

[0016] Figure 4 yes Figure 1 Enlarged sectional view of the central mounting plate.

[0017] Figure 5 yes Figure 1 Enlarged 3D view of the central skeleton.

[0018] Figure 6 yes Figure 2 A magnified 3D view of the center spline shaft.

[0019] The following components are shown in the diagram: 1. Base; 2. Clamping plate; 3. Support block; 4. Frame; 5. Splined shaft; 6. Positioning claw; 7. Drive mechanism; 8. Worm gear; 9. Drive cover; 10. Worm; 11. Motor; 12. Electric telescopic rod; 13. Grinding tool; 71. Mounting bracket; 72. Screw; 73. Threaded bracket; 74. Bevel gear one; 75. Center bevel gear; 76. Bevel gear shaft; 77. Support frame; 78. Handwheel. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings, but this embodiment should not be construed as a limitation of this utility model.

[0021] This utility model is as follows Figures 1 to 6 As shown: A steering wheel polishing device includes a base 1, a clamping plate 2 mounted on the upper end of the base 1 via a bearing, a support block 3 fixedly connected to the upper end of the clamping plate 2, a frame 4 in contact with the upper end of the support block 3, a positioning claw 6 slidably connected to the upper end of the clamping plate 2, a splined shaft 5 fixedly connected to the upper end of the support block 3, a drive mechanism 7 disposed inside the clamping plate 2, a worm gear 8 fixedly connected to the lower outer side of the connecting shaft of the clamping plate 2, a drive cover 9 fixedly mounted on the lower end of the base 1, a worm gear 10 mounted inside the drive cover 9 via a bearing, a motor 11 fixedly mounted on the lower end of the base 1, and an electric telescopic rod 12 fixedly mounted on the upper end of the base 1.

[0022] In this embodiment, the positioning claw 6 contacts the skeleton 4, the spline shaft 5 is slidably connected to the skeleton 4, the spline shaft 5 can position the skeleton 4, the output shaft of the motor 11 is fixedly connected to the worm 10, the worm 10 meshes with the worm wheel 8, the worm 10 can drive the worm wheel 8 to rotate, and the upper end of the output end of the electric telescopic rod 12 is fixedly connected to a grinder 13, the grinding cover of the grinder 13 is located on the outside of the skeleton 4, and the grinder 13 can grind the skeleton 4.

[0023] In this embodiment, the drive mechanism 7 includes a mounting frame 71. Multiple pairs of evenly distributed mounting frames 71 are fixedly connected to the inner bottom of the clamping plate 2. Each pair of mounting frames 71 has a screw 72 mounted inside via a bearing. A threaded bracket 73 is threadedly connected to the outer side of the screw 72. A central bevel gear 75 is mounted to the inner bottom of the clamping plate 2 via a bearing. A bevel gear 74 is fixedly connected to one end of the screw 72. A bevel gear shaft 76 is mounted inside the clamping plate 2 via a bearing. A support frame 77 is fixedly connected to the inner bottom of the clamping plate 2. The central bevel gear 75 can rotate by driving multiple bevel gears 74. The threaded bracket 73 is fixedly connected to the positioning claw 6. The bevel gears 74 mesh with the central bevel gear 75. The threaded bracket 73 can drive the positioning claw 6 to move. The support frame 77 is connected to the bevel gear shaft 76 via a bearing. The bevel gear shaft 76 meshes with the central bevel gear 75. A handwheel 78 is fixedly connected to one end of the bevel gear shaft 76. The handwheel 78 can drive the bevel gear shaft 76 to rotate.

[0024] The working principle of this utility model: In use, slide the skeleton 4 to the outside of the spline shaft 5. When the skeleton 4 contacts the support block 3, turn the handwheel 78. The handwheel 78 drives the bevel gear shaft 76 to rotate. The bevel gear shaft 76 drives the central bevel gear 75 to rotate. The central bevel gear 75 drives the screw 72 to rotate through the bevel gear 74. During the rotation of the screw 72, the positioning claw 6 can move through the threaded engagement with the threaded bracket 73. During the movement, the positioning claw 6 can clamp the skeleton 4. Then, start the grinder 13 to grind the skeleton 4. At the same time, start the motor 11. The motor 11 drives the worm gear 10 to rotate. The worm gear 10 can drive the clamping plate 2 to rotate through the meshing with the worm wheel 8. The clamping plate 2 drives the skeleton 4 to rotate through the spline shaft 5, so that the arc surface of the skeleton 4 can be ground.

[0025] Any aspects not described in detail in this specification are techniques well-known in the art.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steering wheel polishing device, comprising a base (1), characterized in that: The upper end of the base (1) is equipped with a clamping plate (2) via a bearing. The upper end of the clamping plate (2) is fixedly connected to a support block (3). The upper end of the support block (3) contacts a skeleton (4). The upper end of the clamping plate (2) is slidably connected to a positioning claw (6). The upper end of the support block (3) is fixedly connected to a spline shaft (5). The interior of the clamping plate (2) is equipped with a drive mechanism (7). The lower part of the outer side of the connecting shaft of the clamping plate (2) is fixedly connected to a worm gear (8). The lower end of the base (1) is fixedly installed with a drive cover (9). The interior of the drive cover (9) is equipped with a worm gear (10) via a bearing. The lower end of the base (1) is fixedly installed with a motor (11). The upper end of the base (1) is fixedly installed with an electric telescopic rod (12).

2. The steering wheel polishing device according to claim 1, characterized in that: The positioning claw (6) contacts the skeleton (4), and the spline shaft (5) is slidably connected to the skeleton (4).

3. The steering wheel polishing device according to claim 1 or 2, characterized in that: The output shaft of the motor (11) is fixedly connected to the worm (10), and the worm (10) meshes with the worm wheel (8).

4. The steering wheel polishing device according to claim 3, characterized in that: A grinder (13) is fixedly connected to the upper end of the output end of the electric telescopic rod (12), and the grinding cover of the grinder (13) is located on the outside of the frame (4).

5. A steering wheel polishing device according to claim 1, 2, or 4, characterized in that: The drive mechanism (7) includes a mounting bracket (71). Multiple pairs of evenly distributed mounting brackets (71) are fixedly connected to the inner bottom of the clamping plate (2). Each pair of mounting brackets (71) has a screw (72) installed inside through a bearing. A threaded bracket (73) is threaded to the outside of the screw (72). A central bevel gear (75) is installed to the inner bottom of the clamping plate (2) through a bearing. A bevel gear (74) is fixedly connected to one end of the screw (72). A bevel gear shaft (76) is installed inside the clamping plate (2) through a bearing. A support frame (77) is fixedly connected to the inner bottom of the clamping plate (2).

6. The steering wheel polishing device according to claim 5, characterized in that: The threaded bracket (73) is fixedly connected to the positioning claw (6), and the first bevel gear (74) meshes with the central bevel gear (75).

7. The steering wheel polishing device according to claim 6, characterized in that: The support frame (77) is connected to the bevel gear shaft (76) via a bearing. The bevel gear shaft (76) meshes with the central bevel gear (75). A handwheel (78) is fixedly connected to one end of the bevel gear shaft (76).

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