Detection tool for automobile backboard

By introducing clamping width and height adjustment components into the automotive back panel inspection fixture, the problem that existing inspection devices cannot adapt to back panels of different specifications has been solved, achieving efficient and accurate inspection results and improving inspection accuracy and ease of operation.

CN224262396UActive Publication Date: 2026-05-19JIANGSU XINYOUSHENG INTELLIGENT MFG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XINYOUSHENG INTELLIGENT MFG TECH CO LTD
Filing Date
2025-07-30
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing automotive back panel inspection fixtures lack adjustable clamping width and height, making them unsuitable for back panels of different specifications and sizes, thus affecting inspection accuracy and reliability.

Method used

A clamping width adjustment component and a clamping height adjustment component were designed. The clamping width can be flexibly adjusted by rotating the rotating rod and pulling the pull ring, and the height can be adjusted by combining the threaded rod and the nut, so as to ensure the best fit between the detection head and the back plate.

Benefits of technology

It improves the adaptability of inspection fixtures to diverse backplates, reduces the time and cost of changing fixtures, improves inspection accuracy and reliability, simplifies operation procedures, and increases work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an automobile backboard detection tool comprising a detection tool main body and a workbench, the upper end of the detection tool main body is slidably connected with the workbench through a slide rail, the outer walls of the two sides of the workbench are provided with bearing assemblies, the bearing assemblies are provided with clamping width adjusting assemblies, and the bearing assemblies are also provided with clamping height adjusting assemblies. An automobile back plate is clamped and placed on the clamping width adjusting assembly, two groups of detection heads are arranged on the detection tool main body, the end parts of the two groups of detection heads are located above the automobile back plate, the clamping width adjusting assembly adjusts the clamping width of the automobile back plate, and the clamping height adjusting assembly adjusts the distance between the automobile back plate and the end parts of the detection heads; according to the device, by arranging the clamping width adjusting assembly, flexible adjustment of the clamping width is achieved, an operator only needs to rotate a rotating rod and pull a pull ring, the distance between clamping plates can be conveniently and rapidly adjusted, and therefore the device adapts to automobile backboards of different specifications and sizes.
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Description

Technical Field

[0001] This utility model relates to the field of workpiece inspection technology, and in particular to an inspection fixture for automobile back panels. Background Technology

[0002] Inspection fixtures for automotive back panels are typically used to accurately inspect the dimensions, shape, and structure of automotive back panels to ensure they meet production standards and design requirements. The inspection fixtures consist of the following main parts: a worktable for placing the back panel to be inspected and an inspection head placed on the worktable. The inspection head is usually composed of sensors, probes, or laser measurement systems and is used to accurately measure the dimensions, shape, and hole positions of the back panel.

[0003] Existing automotive back panel inspection fixtures are typically designed with positioning and fixing functions to ensure that the back panel under inspection remains stable during the inspection process. However, a significant drawback of these existing fixtures is their lack of detailed adjustment functions for height and clamping width.

[0004] Specifically, traditional inspection fixtures typically use fixed clamps and positioning devices to fix the backplate on the inspection table. However, since the width and height of the clamping device cannot be adjusted, this causes many problems when dealing with backplates of different specifications or sizes. When the shape or size of the backplate changes, it cannot be adapted through fine adjustments, which not only affects the inspection accuracy but may also lead to incomplete inspection or errors. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a testing fixture for automotive back panels. This device achieves flexible adjustment of the clamping width by setting a clamping width adjustment component. The operator can easily and quickly adjust the spacing between the clamping plates by simply rotating the rotating rod and pulling the pull ring, thereby adapting to automotive back panels of different specifications and sizes.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a testing fixture for a car back panel, comprising a testing fixture body and a worktable. The worktable is slidably connected to the upper end of the testing fixture body via a slide rail. Supporting components are provided on the outer walls of both sides of the worktable. A clamping width adjustment component is provided on the supporting components, and a clamping height adjustment component is also provided on the supporting components. A car back panel is clamped and placed on the clamping width adjustment component. Two sets of testing heads are installed on the testing fixture body, with the ends of the two sets of testing heads positioned above the car back panel. The clamping width adjustment component adjusts the width of the clamped car back panel, and the clamping height adjustment component adjusts the distance between the car back panel and the ends of the testing heads.

[0007] As a preferred technical solution of this utility model, the supporting component includes a base fixed on the outer walls of both sides of the workbench and a movable plate placed above the base, wherein the movable plate is provided with a clamping width adjustment component, the base is connected to a clamping height adjustment component, and the movable plate is inserted into the clamping height adjustment component.

[0008] As a preferred technical solution of this utility model, the clamping width adjustment component includes a movable groove in the movable plate, a clamping plate inserted into the movable groove, a pull ring fixed to the end of the clamping plate, a threaded groove in the movable plate, a rotating rod inserted into the threaded groove, an external thread on the rotating rod and threadedly connected to the threaded groove, and a soft pad on the bottom end of the rotating rod.

[0009] In a preferred embodiment of this invention, the movable groove is connected to the threaded groove, and the top end of the rotating rod is spherical.

[0010] As a preferred embodiment of this utility model, the inner end of the clamping plate is L-shaped, and the outer wall of the pull ring is circular.

[0011] As a preferred embodiment of this utility model, the soft pad penetrates the threaded groove and fits against the outer wall of the clamping plate in the movable groove, and the soft pad is set as a rubber soft pad.

[0012] As a preferred technical solution of this utility model, the clamping height adjustment component includes four sets of through holes opened on the movable plate, four sets of threaded rods fixed on the outer wall of the base, and nuts threadedly connected to the outer wall of the threaded rods.

[0013] In a preferred embodiment of this utility model, the nut is connected to the outer wall of the threaded rod below the movable plate, and the outer diameter of the nut is set to be larger than the inner diameter of the through hole.

[0014] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0015] 1. This device achieves flexible adjustment of the clamping width by setting up a clamping width adjustment component. The operator can easily and quickly adjust the spacing between the clamping plates by simply rotating the rotating rod and pulling the pull ring, thereby adapting to car back panels of different specifications and sizes. Compared with traditional fixed clamps, this design greatly improves the adaptability of the inspection fixture to diverse back panels and reduces the time and cost of changing clamps.

[0016] 2. The device is equipped with a clamping height adjustment component. Through the cooperation of the threaded rod and nut, the detection distance between the worktable and the detection head can be precisely adjusted. This function effectively solves the problem of fixed height in traditional detection devices, so that the back plate being detected can cooperate with the detection head in the optimal position, ensuring that the sensor or probe can accurately measure the size, shape and hole position of the back plate, thereby improving the accuracy and reliability of the detection.

[0017] 3. The clamping plate can be unlocked and fixed by rotating the rod to drive the threaded structure and soft pad. Combined with the manual adjustment of the pull ring, the operation is simple and does not rely on complicated tools. At the same time, the clamping height can be adjusted by rotating the nut, which is easy to control precisely. This design makes it convenient for operators to quickly adapt to different back plates and improve work efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional view of the clamping width adjustment component of this utility model from a first perspective.

[0020] Figure 3 This is a three-dimensional structural diagram of the clamping width adjustment component of this utility model from a second perspective.

[0021] Figure 4 This is a side cross-sectional view of the clamping width adjustment component structure of this utility model;

[0022] Figure 5 This is a side view sectional diagram of the clamping height adjustment component structure of this utility model.

[0023] The components are labeled as follows: 1. Inspection fixture body; 2. Workbench; 3. Car back panel; 4. Inspection head; 5. Bearing assembly; 51. Base; 52. Movable plate; 6. Clamping width adjustment assembly; 61. Movable groove; 62. Clamping plate; 63. Pull ring; 64. Threaded groove; 65. Rotating rod; 66. External thread; 67. Soft pad; 7. Clamping height adjustment assembly; 71. Through hole; 72. Threaded rod; 73. Nut. Detailed Implementation

[0024] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0025] Example:

[0026] like Figure 1-5 As shown, a testing fixture for a car back panel includes a testing fixture body 1 and a worktable 2. The worktable 2 is slidably connected to the upper end of the testing fixture body 1 via a slide rail. The outer walls on both sides of the worktable 2 are provided with a bearing assembly 5. The bearing assembly 5 is provided with a clamping width adjustment assembly 6 and a clamping height adjustment assembly 7. The clamping width adjustment assembly 6 clamps and places a car back panel 3. Two sets of testing heads 4 are installed on the testing fixture body 1. The ends of the two sets of testing heads 4 are above the car back panel 3. The clamping width adjustment assembly 6 adjusts the width of the car back panel 3, and the clamping height adjustment assembly 7 adjusts the distance between the car back panel 3 and the ends of the testing heads 4.

[0027] The support assembly 5 includes a base 51 fixed on the outer walls of both sides of the workbench 2 and a movable plate 52 placed above the base 51. The movable plate 52 is provided with a clamping width adjustment assembly 6, and the base 51 is connected to a clamping height adjustment assembly 7. The movable plate 52 is inserted into the clamping height adjustment assembly 7. The clamping width adjustment assembly 6 includes a movable groove 61 opened in the movable plate 52, a clamping plate 62 inserted in the movable groove 61, a pull ring 63 fixed on the end of the clamping plate 62, a threaded groove 64 opened in the movable plate 52, a rotating rod 65 inserted in the threaded groove 64, an external thread 66 opened on the rotating rod 65 and threadedly connected to the threaded groove 64, and a soft pad 67 provided on the bottom end of the rotating rod 65.

[0028] When it is necessary to adjust the width distance of the clamping car back panel 3, simply rotate the rotating rod 65 upwards, so that the rotating rod 65 drives the external thread 66 to cooperate with the thread groove 64 to rotate upwards, so that the soft pad 67 at the bottom end separates from the outer wall of the clamping plate 62, releasing the limitation on the position of the clamping plate 62. At this time, the pull ring 63 can be pulled outwards, so that the pull ring 63 drives the clamping plate 62 to move outwards or inwards in the movable groove 61, thereby adjusting the distance between the left and right sets of clamping plates 62, and further adjusting the distance between the clamping car back panels 3. After the adjustment is completed, the rotating rod 65 is rotated in the opposite direction to make the soft pad 67 fit against the outer wall of the clamping plate 62 to form a fixed clamp.

[0029] It is worth noting that the movable groove 61 and the threaded groove 64 are connected, and the top of the rotating rod 65 is spherical. Through the connection design, the movable groove 61 and the threaded groove 64 can work together to precisely control the movement trajectory of the clamping plate 62, thereby ensuring the stability and accuracy of the adjustment, preventing the clamping plate 62 from deviating from the preset track, and the spherical top can adapt to different angles and pressures during rotation, avoiding uneven friction, reducing parts wear, and extending the service life of the inspection tool.

[0030] The inner end of the clamping plate 62 is set in an L-shape. The L-shaped design provides a better contact area and clamping stability, so that the car back panel 3 remains stable during the inspection process and reduces inspection errors. The outer wall of the pull ring 63 is set in a circular shape. The circular pull ring can effectively disperse the applied force.

[0031] The soft pad 67 passes through the threaded groove 64 and fits against the outer wall of the clamping plate 62 in the movable groove 61. The soft pad 67 is made of rubber, and the rubber material has good elasticity and friction, which can effectively prevent the back plate from sliding and increase the clamping stability.

[0032] The clamping height adjustment assembly 7 includes four sets of through holes 71 opened on the movable plate 52, four sets of threaded rods 72 fixed on the outer wall of the base 51, and nuts 73 threadedly connected to the outer wall of the threaded rods 72.

[0033] When it is necessary to adjust the detection distance between the car back panel 3 and the detection head 4, simply rotate the nut 73 so that the nut 73 and the threaded rod 72 rotate together. Move the nut 73 up or down so that the nut 73 drives the movable plate 52 placed on the nut 73 to move, which in turn drives the car back panel 3 placed on the clamping plate 62 inside the movable plate 52 to move, thereby achieving the effect of adjusting the height.

[0034] It is worth noting that the nut 73 is connected to the outer wall of the threaded rod 72 below the movable plate 52. The outer diameter of the nut 73 is set to be larger than the inner diameter of the through hole 71, which ensures the fastening effect between the nut 73 and the movable plate 52, prevents the adjustment instability caused by the loosening of the nut 73, and further ensures the precise adjustment of the clamping plate 62, thereby ensuring the accurate distance between the back plate and the detection head 4.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A testing fixture for an automotive back panel, comprising a fixture body (1) and a worktable (2), characterized in that: The upper end of the main body (1) of the inspection fixture is slidably connected to a workbench (2) via a slide rail. The outer walls on both sides of the workbench (2) are provided with a bearing assembly (5). The bearing assembly (5) is provided with a clamping width adjustment assembly (6). The bearing assembly (5) is also provided with a clamping height adjustment assembly (7). The clamping width adjustment assembly (6) clamps and places a car back panel (3). The main body (1) of the inspection fixture is equipped with two sets of inspection heads (4). The ends of the two sets of inspection heads (4) are located above the car back panel (3). The clamping width adjustment assembly (6) adjusts the width of clamping the car back panel (3). The clamping height adjustment assembly (7) adjusts the distance between the car back panel (3) and the end of the inspection head (4).

2. The inspection fixture for an automotive back panel according to claim 1, characterized in that: The supporting component (5) includes a base (51) fixed on the outer walls of both sides of the workbench (2) and a movable plate (52) placed above the base (51). The movable plate (52) is provided with a clamping width adjustment component (6), and the base (51) is connected to a clamping height adjustment component (7). The movable plate (52) is inserted into the clamping height adjustment component (7).

3. The inspection fixture for an automotive back panel according to claim 2, characterized in that: The clamping width adjustment assembly (6) includes a movable groove (61) opened in the movable plate (52), a clamping plate (62) inserted into the movable groove (61), a pull ring (63) fixed on the end of the clamping plate (62), a threaded groove (64) opened in the movable plate (52), a rotating rod (65) inserted into the threaded groove (64), an external thread (66) opened on the rotating rod (65) and threadedly connected to the threaded groove (64), and a soft pad (67) provided on the bottom end of the rotating rod (65).

4. The inspection fixture for an automotive back panel according to claim 3, characterized in that: The movable groove (61) is connected to the threaded groove (64), and the top end of the rotating rod (65) is spherical.

5. The inspection fixture for an automotive back panel according to claim 3, characterized in that: The inner end of the clamping plate (62) is L-shaped, and the outer wall of the pull ring (63) is annular.

6. The inspection fixture for an automobile back panel according to claim 3, characterized in that: The soft pad (67) passes through the threaded groove (64) and fits against the outer wall of the clamping plate (62) in the movable groove (61). The soft pad (67) is a rubber soft pad.

7. The inspection fixture for an automotive back panel according to claim 3, characterized in that: The clamping height adjustment assembly (7) includes four sets of through holes (71) opened on the movable plate (52), four sets of threaded rods (72) fixed on the outer wall of the base (51), and nuts (73) threadedly connected to the outer wall of the threaded rods (72).

8. The inspection fixture for an automobile back panel according to claim 7, characterized in that: The nut (73) is connected to the outer wall of the threaded rod (72) below the movable plate (52), and the outer diameter of the nut (73) is set to be larger than the inner diameter of the through hole (71).