Automobile front wheel support testing fixture

Abstract

The utility model relates to the technical field of automobile processing, and discloses an automobile front wheel support testing fixture, which comprises a workbench, the surface of the workbench is rotatably connected with a bearing disc, the surface of the bearing disc is provided with a front wheel support main body, the bottom surface of the workbench is fixedly connected with a motor, and the motor is fixedly connected with the bearing disc. An output shaft of the motor penetrates through and is rotationally connected to the surface of the workbench, four sets of symmetrically-arranged sliding grooves are formed in the surface of the bearing disc, positioning assemblies are arranged in the sliding grooves and comprise sliding plates, the sliding plates are slidably connected to the interiors of the sliding grooves, and through holes are formed in the side walls of the sliding plates. According to the automobile front wheel support testing fixture, the motor drives the bearing disc to rotate, drives the front wheel support main body to rotate, and cooperates with the rollers to roll along the surface profile, so that dead-corner-free detection of full-circumferential bending defects is realized, the displacement of the lifting plate is directly converted into a numerical value through the graduated scale, a quantification result is more visual and accurate, and the human misjudgment rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive processing technology, specifically to an inspection tool for automotive front wheel brackets. Background Technology

[0002] In the automotive manufacturing industry, the front wheel bracket is a key component of automobiles, and its dimensional accuracy and surface quality directly affect the vehicle's handling performance and safety.

[0003] Currently, traditional methods for inspecting automotive front wheel brackets mainly suffer from the following technical bottlenecks: First, most methods rely on manual measurement or single-point positioning, such as using dial indicators, feeler gauges, and other tools to measure the bracket surface contour point by point. This is not only inefficient, but also prone to missing areas due to the discontinuous measurement path, making it difficult to achieve complete circumferential inspection. Second, the positioning methods of existing inspection equipment lack stability. When using single-point or asymmetrical clamping, the workpiece is prone to shifting or slipping during the inspection process, resulting in distorted inspection data that cannot accurately reflect the actual deformation of the bracket. Utility Model Content

[0004] The purpose of this invention is to provide a front wheel bracket inspection tool for automobiles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a front wheel bracket inspection fixture for automobiles, comprising a worktable, a support plate rotatably connected to the surface of the worktable, a front wheel bracket body placed on the surface of the support plate, a motor fixedly connected to the bottom surface of the worktable, the output shaft of the motor passing through and rotatably connected to the surface of the worktable, four sets of symmetrically arranged sliding grooves on the surface of the support plate, a positioning component inside the sliding groove, the positioning component including a sliding plate, the sliding plate slidably connected inside the sliding groove, a through hole on the side wall of the sliding plate, a guide rod slidably connected in the through hole, the end of the guide rod fixedly connected to the inner wall of the sliding groove, a contact plate fixedly connected to one side of the sliding plate, a traction plate hinged to the other side of the sliding plate, a threaded sleeve hinged to the end of the traction plate, and a lead screw threadedly connected inside the threaded sleeve.

[0006] Preferably, a detection component is provided on the surface of the workbench. The detection component includes a fixed frame, which is fixedly connected to the surface of the workbench. A lifting plate is slidably connected inside the fixed frame. A through hole is opened on the surface of the lifting plate, and a vertical rod is slidably connected in the through hole. The end of the vertical rod is fixedly connected to the inner wall of the fixed frame. An extension plate is fixedly connected to the side wall of the lifting plate. A through groove is opened on the surface of the extension plate, and a roller is rotatably connected inside the through groove. The roller is in contact with the surface of the front wheel bracket body.

[0007] Preferably, the contact plate is in contact with the inner ring wall of the front wheel bracket body, and the side wall of the contact plate is provided with multiple sets of neatly distributed anti-slip grooves.

[0008] Preferably, one end of the lead screw is rotatably connected to the surface of the bearing plate, and the other end of the lead screw is fixedly connected to a wheel.

[0009] Preferably, a scale is fixedly connected to the surface of the lifting plate, and the scale passes through and is slidably connected to the top of the fixed frame.

[0010] Preferably, the surface of the lifting plate is elastically connected to the inner wall of the fixed frame by a return spring.

[0011] Preferably, the bottom surface of the workbench is fixedly connected to four sets of symmetrically arranged support legs.

[0012] Compared with the prior art, this utility model provides a front wheel bracket inspection tool for automobiles, which has the following features:

[0013] Beneficial effects:

[0014] 1. This automotive front wheel bracket inspection fixture uses a motor-driven bearing plate to rotate, which in turn rotates the main body of the front wheel bracket. In conjunction with rollers rolling along the surface contour, it achieves comprehensive circumferential bending defect detection without blind spots. The displacement of the lifting plate is directly converted into numerical values ​​through a scale, making the quantitative results more intuitive and accurate, and reducing the rate of human error.

[0015] 2. This automotive front wheel bracket inspection fixture uses a screw threaded sleeve transmission structure to drive four sets of contact plates to move synchronously, achieving uniform annular clamping of the inner ring wall of the front wheel bracket. Multiple sets of anti-slip grooves on the surface of the contact plates tightly engage with the inner ring wall, ensuring that the workpiece and the bearing plate rotate synchronously without slippage, thus avoiding distortion of inspection data caused by relative rotation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the detection component structure of this utility model.

[0019] In the diagram: 1. Workbench; 2. Bearing plate; 21. Front wheel bracket body; 3. Motor; 4. Slide groove; 5. Positioning assembly; 51. Slide plate; 52. Guide rod; 53. Contact plate; 54. Traction plate; 55. Threaded sleeve; 56. Lead screw; 57. Rotary wheel; 6. Detection assembly; 61. Fixed frame; 62. Lifting plate; 63. Vertical rod; 64. Extension plate; 65. Through groove; 66. Roller; 67. Scale. Detailed Implementation

[0020] like Figures 1-3 As shown, this utility model provides a technical solution: a front wheel bracket inspection fixture for automobiles, including a workbench 1. Four sets of symmetrically arranged support legs are fixedly connected to the bottom surface of the workbench 1, ensuring the fixture is stably placed on a plane. A carrier plate 2 is rotatably connected to the surface of the workbench 1, and a front wheel bracket body 21 is placed on the surface of the carrier plate 2. A motor 3 is fixedly connected to the bottom surface of the workbench 1, and the output shaft of the motor 3 passes through and is rotatably connected to the surface of the workbench 1. The output shaft of the motor 3 drives the carrier plate 2, causing the front wheel bracket body 21 placed on the carrier plate 2 to rotate. This, in conjunction with the inspection component 6, allows for a comprehensive inspection of the surface of the front wheel bracket body 21, avoiding any missed areas. Four sets of symmetrically arranged sliding grooves 4 are formed on the surface of the carrier plate 2. A positioning component 5 is installed inside each sliding groove 4. The sliding grooves 4 provide a track for the sliding plate 51 in the positioning component 5, which is used to position the front wheel bracket body 21.

[0021] like Figures 1-3 As shown, the positioning component 5 includes a sliding plate 51, which is slidably connected inside the slide groove 4. A through hole is provided on the side wall of the sliding plate 51, and a guide rod 52 is slidably connected in the through hole. The end of the guide rod 52 is fixedly connected to the inner wall of the slide groove 4. The guide rod 52 positions and guides the sliding plate 51, allowing it to move stably within the slide groove 4. A contact plate 53 is fixedly connected to one side of the sliding plate 51. The contact plate 53 is in contact with the inner ring wall of the front wheel bracket body 21. Multiple sets of evenly distributed anti-slip grooves are provided on the side wall of the contact plate 53. The sliding plate 51 drives the contact plate 53 to move, bringing it into contact with the inner ring wall of the front wheel bracket body 21. The multiple anti-slip grooves increase the friction of the inner ring wall of the front wheel bracket body 21, ensuring that the front wheel bracket body 21 rotates synchronously with the bearing plate 2. A traction plate 54 is hinged to the other side of the slide plate 51. A threaded sleeve 55 is hinged to the end of the traction plate 54. A lead screw 56 is threaded inside the threaded sleeve 55. One end of the lead screw 56 is rotatably connected to the surface of the bearing plate 2, and the other end of the lead screw 56 is fixedly connected to a rotating wheel 57. By rotating the rotating wheel 57, the lead screw 56 is driven to rotate. The threaded sleeve 55 drives the traction plate 54 to push the slide plate 51 and the contact plate 53 close to the inner ring wall of the front wheel bracket body 21. The four sets of slide plates 51 and contact plates 53 are used to position the front wheel bracket body 21, ensuring the stability of the front wheel bracket body 21 during the testing process.

[0022] like Figures 1-3As shown, a detection component 6 is provided on the surface of the workbench 1. The detection component 6 includes a fixed frame 61, which is fixedly connected to the surface of the workbench 1. A lifting plate 62 is slidably connected inside the fixed frame 61. A through hole is opened on the surface of the lifting plate 62, and a vertical rod 63 is slidably connected in the through hole. The end of the vertical rod 63 is fixedly connected to the inner wall of the fixed frame 61. The vertical rod 63 is used to position and guide the lifting plate 62, so that the lifting plate 62 can move stably in the vertical direction. The surface of the lifting plate 62 and the inner wall of the fixed frame 61 are elastically connected by a return spring. The return spring provides downward pressure to the lifting plate 62 and makes the lifting plate 62 quickly return to its original position when its position changes.

[0023] like Figures 1-3 As shown, an extension plate 64 is fixedly connected to the side wall of the lifting plate 62. A through groove 65 is formed on the surface of the extension plate 64, and a roller 66 is rotatably connected inside the through groove 65. The roller 66 is in contact with the surface of the front wheel bracket body 21. The extension plate 64 moves up and down with the lifting plate 62, and the roller 66 contacts the surface of the front wheel bracket body 21. When the front wheel bracket body 21 rotates, the roller 66 rolls along the contour of the surface of the front wheel bracket body 21. When a part of the surface of the front wheel bracket body 21 bulges upward, the roller 66 is lifted up, pushing the lifting plate 62 to move upward against the spring force of the return spring. When a part of the surface of the front wheel bracket body 21 is concave downward, the return spring pushes the lifting plate 62 to move downward, causing the roller 66 to fall into the concave area. Thus, the displacement of the lifting plate 62 directly reflects the bending amplitude of the surface of the front wheel bracket body 21. A scale 67 is fixedly connected to the surface of the lifting plate 62. The scale 67 passes through and is slidably connected to the top of the fixed frame 61. By moving the scale 67 synchronously with the lifting plate 62, the specific value of the bending deformation can be quantified based on the change in the reading of the scale 67.

[0024] In this invention, during use, the front wheel bracket body 21 is placed in the center of the bearing plate 2. Rotating the rotating wheel 57, through the threaded transmission between the lead screw 56 and the threaded sleeve 55, drives the traction plate 54 to push the sliding plate 51, causing the four sets of contact plates 53 to adhere to the inner ring wall of the front wheel bracket body 21, and applying appropriate clamping force to ensure that the front wheel bracket body 21 does not wobble and is fixed integrally with the bearing plate 2. The lifting plate 62 is manually adjusted so that the roller 66 contacts the surface of the front wheel bracket body 21. At this time, the return spring is compressed, and the output shaft of the motor 3 drives the bearing plate 2 to rotate horizontally at a constant speed. The front wheel bracket body 21 rotates accordingly, and the roller 66 moves along the front wheel bracket body 2... 1. Surface rolling: If the workpiece surface is flat, roller 66 maintains a constant height, lifting plate 62 remains stationary, and scale 67 reads zero. If the surface of the front wheel bracket body 21 has a local bulge, roller 66 is lifted, pushing lifting plate 62 upward against the return spring force, and scale 67 displays a positive reading. If the surface of the front wheel bracket body 21 has a local depression, the return spring pushes lifting plate 62 downward, roller 66 falls into the depression area, and scale 67 displays a negative reading. During one revolution of the front wheel bracket body 21, observe the change in scale 67 reading, record the maximum positive deviation and the maximum negative deviation, and complete the inspection of the front wheel bracket body 21.

[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A vehicle front wheel bracket inspection fixture, with a workbench (1), characterized in that: The surface of the workbench (1) is rotatably connected to a support plate (2). A front wheel bracket body (21) is placed on the surface of the support plate (2). A motor (3) is fixedly connected to the bottom surface of the workbench (1). The output shaft of the motor (3) passes through and is rotatably connected to the surface of the workbench (1). The surface of the support plate (2) is provided with four sets of symmetrically arranged sliding grooves (4). A positioning component (5) is provided inside the sliding groove (4). The positioning component (5) includes a sliding plate (51). 1) The slide plate (51) is slidably connected inside the slide groove (4). The side wall of the slide plate (51) is provided with a through hole, and a guide rod (52) is slidably connected in the through hole. The end of the guide rod (52) is fixedly connected to the inner wall of the slide groove (4). A contact plate (53) is fixedly connected to one side of the slide plate (51). A traction plate (54) is hinged to the other side of the slide plate (51). A threaded sleeve (55) is hinged to the end of the traction plate (54). A screw rod (56) is threadedly connected inside the threaded sleeve (55).

2. The automotive front wheel bracket inspection fixture according to claim 1, characterized in that: A detection component (6) is provided on the surface of the workbench (1). The detection component (6) includes a fixed frame (61). The fixed frame (61) is fixedly connected to the surface of the workbench (1). A lifting plate (62) is slidably connected inside the fixed frame (61). A through hole is opened on the surface of the lifting plate (62), and a vertical rod (63) is slidably connected in the through hole. The end of the vertical rod (63) is fixedly connected to the inner wall of the fixed frame (61). An extension plate (64) is fixedly connected to the side wall of the lifting plate (62). A through groove (65) is opened on the surface of the extension plate (64). A roller (66) is rotatably connected inside the through groove (65). The roller (66) is in contact with the surface of the front wheel bracket body (21).

3. The automotive front wheel bracket inspection fixture according to claim 1, characterized in that: The contact plate (53) is in contact with the inner ring wall of the front wheel bracket body (21), and the side wall of the contact plate (53) is provided with multiple sets of neatly distributed anti-slip grooves.

4. The automotive front wheel bracket inspection fixture according to claim 1, characterized in that: One end of the lead screw (56) is rotatably connected to the surface of the bearing plate (2), and the other end of the lead screw (56) is fixedly connected to a wheel (57).

5. The automotive front wheel bracket inspection fixture according to claim 2, characterized in that: A scale (67) is fixedly connected to the surface of the lifting plate (62), and the scale (67) passes through and is slidably connected to the top of the fixed frame (61).

6. The automotive front wheel bracket inspection fixture according to claim 2, characterized in that: The surface of the lifting plate (62) and the inner wall of the fixed frame (61) are elastically connected by a return spring.

7. The automotive front wheel bracket inspection fixture according to claim 1, characterized in that: The bottom surface of the workbench (1) is fixedly connected to four sets of symmetrically arranged support legs.

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