A clamping device for automotive inspection tools

By designing the rotating connector, pulling component, and support component structure of the automotive inspection fixture clamping device, the problem of inconvenient clamping in confined spaces was solved, achieving stable fixation and precise control, thereby improving inspection efficiency and device applicability.

CN224425355UActive Publication Date: 2026-06-30TIANJIN TQM BODY EQUIP TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN TQM BODY EQUIP TECH CO LTD
Filing Date
2025-07-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

During the inspection of body panels, the outer panel obstructs the inner panel's reference positioning, making it inconvenient to operate the clamping mechanism, especially in confined spaces where it is difficult to achieve stable fixation and precise control of the clamping force.

Method used

A clamping device for automotive inspection fixtures was designed, which adopts a combination structure of rotating connector, pulling member and support member. The clamping arm can be rotated flexibly by rotating connector, the pulling member provides stable power, the support member reduces friction, and the connector is fine-tuned to achieve stable fixation and precise control in a confined space.

Benefits of technology

It achieves stable fixation and precise control of clamping force in a confined space, improving detection efficiency and the versatility of the device, and avoiding detection inconvenience and device damage caused by space limitations.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224425355U_ABST
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Abstract

This utility model discloses an automotive inspection fixture clamping device, including a third mounting base. The upper left side of the third mounting base is connected to a clamping arm for clamping the workpiece under test via a rotating connector. A clamping element is connected to the upper end of the clamping arm. A pulling element is provided on the left side of the third mounting base for pulling the clamping arm to one side, thereby driving the upper end to clamp the workpiece under test. A support element is provided at the bottom of the pulling element. Through the arrangement of the rotating connector, the clamping element, and the pulling element, the rotating connector allows the clamping arm to rotate flexibly. Even in a confined space, it can avoid the obstruction of the outer panel by rotation and successfully clamp the workpiece under test from the reverse side. The clamping element can directly act on the workpiece under test to achieve stable fixation. At the same time, the pulling element provides stable power in a confined space and accurately controls the clamping force.
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Description

Technical Field

[0001] This utility model relates to the technical field of automotive fixture clamping devices, specifically an automotive fixture clamping device. Background Technology

[0002] The manufacturing of body panels is a key part of automobile body manufacturing. They are also the parts that reflect the overall appearance and quality performance of the car body. The welding assembly of the body panels is the last link in ensuring the quality of the car body appearance. Therefore, the accuracy of the welding is extremely strict. Taking the welding of the door assembly as an example, after the door assembly is welded, it will be placed on the inspection fixture. The matching surface and trimming accuracy will be inspected after the reference positioning of the inner door panel and the reference positioning of the outer door panel.

[0003] However, when using the inner plate as a reference for positioning, the outer plate often blocks the front, and the clamping mechanism can only be operated from the back, which is inconvenient due to space constraints. Utility Model Content

[0004] The purpose of this invention is to provide an automotive fixture clamping device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A clamping device for an automotive inspection tool includes a third mounting base. The upper left side of the third mounting base is connected to a clamping arm for clamping the workpiece under test via a rotatable connector. A clamping member is connected to the upper end of the clamping arm. A pulling member is provided on the left side of the third mounting base for pulling the clamping arm to one side to drive the upper end to clamp the workpiece under test. A support member is provided at the bottom of the pulling member.

[0007] As a preferred technical solution, the clamping member includes a pressure head installed at the lower part of the upper end of the clamping arm.

[0008] As a preferred technical solution, the rotating connector includes a groove formed on the upper left side of the third mounting base, and the lower part of the clamping arm is located in the inner cavity of the groove and is rotatably connected to the third mounting base through a second shaft pin.

[0009] As a preferred technical solution, the pulling member includes a clamping device disposed on the left side of the third mounting base. The actuating end of the clamping device is connected to a guide rod via a connector. The other end of the guide rod is engaged at the lower end of the clamping arm and is rotatably connected to the clamping arm via a first pivot pin.

[0010] As a preferred technical solution, the support includes a first mounting base and a second mounting base. The moving end of the first mounting base passes through the first mounting base, and a linear bearing is fixedly inserted into the surface of the second mounting base. The surface of the guide rod is fixedly inserted into the inner cavity of the linear bearing.

[0011] As a preferred technical solution, the connector includes a screw threaded to the operating end of the clamping device, and the other end of the screw is threaded to one end of the guide rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model, through the setting of a rotating connector, a clamping component, and a pulling component, allows the clamping arm to rotate flexibly. Even in a confined space, it can avoid the obstruction of the outer plate by rotating and successfully clamp the test piece from the reverse side. The clamping component can directly act on the test piece to achieve stable fixation. At the same time, the pulling component provides stable power in a confined space and accurately controls the clamping force.

[0014] 2. By setting the connecting parts and adjusting the screw insertion depth, the tightness of the connection can be finely adjusted in a limited space, thereby precisely controlling the pulling force of the pulling parts on the clamping arm to adapt to the clamping requirements of different body panels in confined spaces, and improving the versatility and applicability of the device in complex spatial environments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the automobile inspection fixture clamping device of this utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the present invention when it is in operation;

[0018] Figure 4 This is a schematic diagram of the structure of the present invention in its non-working state.

[0019] In the picture:

[0020] 1. First mounting base; 2. Clamping device; 3. Screw; 4. Guide rod; 5. Second mounting base; 6. Linear bearing sleeve; 7. First shaft pin; 8. Second shaft pin; 9. Third mounting base; 10. Clamping arm; 11. Pressure head; 12. Sheet metal part. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This embodiment provides an automotive inspection fixture clamping device, including a third mounting base 9. The upper left side of the third mounting base 9 is connected to a clamping arm 10 for clamping the workpiece under test via a rotating connector. A clamping member is connected to the upper end of the clamping arm 10. A pulling member is provided on the left side of the third mounting base 9 for pulling the clamping arm 10 to one side, thereby driving the upper end to clamp the workpiece under test. A support member is provided at the bottom of the pulling member. Through the arrangement of the rotating connector, the clamping member, and the pulling member, the rotating connector allows the clamping arm 10 to rotate flexibly. Even in a confined space, it can avoid the obstruction of the outer panel by rotation and successfully clamp the workpiece under test from the reverse side. The clamping member can directly act on the workpiece under test to achieve stable fixation. At the same time, the pulling member provides stable power in a confined space and accurately controls the clamping force.

[0023] The clamping component includes a pressure head 11 installed at the lower part of the upper end of the clamping arm 10. By setting the pressure head 11, the pressure head 11 is installed on the clamping arm 10, which can increase the contact area in a limited space, so that the pressure is evenly distributed on the test piece, avoiding damage to the test piece due to excessive local pressure. At the same time, it can provide a stable and reliable clamping force, effectively preventing the test piece from shifting or shaking due to inconvenient space operation during the testing process, and ensuring that the matching surface and trimming accuracy of the cover can be accurately detected even in a limited space.

[0024] The rotating connector includes a groove on the upper left side of the third mounting base 9. The lower part of the clamping arm 10 is located in the inner cavity of the groove and is rotatably connected to the third mounting base 9 through the second shaft pin 8. By setting the rotating connector, the groove and the shaft pin cooperate to form a stable rotation fulcrum, so that the rotation trajectory of the clamping arm 10 in the narrow space is precisely controllable, effectively avoiding interference with components such as the outer plate.

[0025] The pulling component includes a clamping device located on the left side of the third mounting base 9. The actuating end of the clamping device is connected to a guide rod 4 via a connector. The other end of the guide rod 4 is engaged at the lower end of the clamping arm 10 and is rotatably connected to the clamping arm 10 via a linear bearing sleeve 7 of the first shaft pin 6. By setting up the pulling component, the linear motion of the clamping device can be smoothly converted into the rotation of the clamping arm 10 in the confined space, thereby realizing the rapid clamping and loosening of the tested part from the reverse side, which greatly improves the efficiency of the inspection work of the welding assembly of the body panel in complex space environment.

[0026] The support includes a first mounting base 1 and a second mounting base 5. The moving end of the first mounting base 1 passes through the first mounting base 1. A linear bearing is fixedly inserted into the surface of the second mounting base 5, and the surface of the guide rod 4 is fixedly inserted into the inner cavity of the linear bearing. Through the setting of the support, the first mounting base 1 and the second mounting base 5 provide a stable mounting base for the pulling component. The cooperation between the linear bearing and the guide rod 4 significantly reduces the friction of the guide rod 4 when it moves in a confined space, ensuring that the guide rod 4 can move smoothly and linearly under the action of the pulling component. Even if the space is inconvenient to operate, it can ensure the stability and accuracy of power transmission. At the same time, it enhances the structural strength and support stability of the pulling component, effectively avoiding problems such as shaking or excessive friction caused by space limitations that affect the clamping effect and the service life of the device. It provides a reliable guarantee for accurately inspecting the welding assembly of the body panel in a complex space environment.

[0027] The connector includes a screw 3 threaded to the actuating end of the clamping device. The other end of the screw 3 is threaded to one end of the guide rod 4. By adjusting the screw 3's screwing depth, the tightness of the connection can be finely adjusted within a limited space, thereby precisely controlling the pulling force of the pulling component on the clamping arm 10 to adapt to the clamping requirements of different body panels in confined spaces and improve the versatility and applicability of the device in complex spatial environments.

[0028] Working principle;

[0029] First, install the linear bearing sleeve onto the mounting base. Then, pass the clamp 2 through the mounting base and connect it to the screw 3. Simultaneously pass the pin through the guide rod 4 and the clamping arm 10 and connect them with a snap ring. Then, pass the pin through the mounting base and the clamping arm 10 and connect them with a snap ring. Finally, pass the guide rod 4 through the linear bearing sleeve and connect it to the screw 3. Then, install the pressure head 11 on the clamping arm 10.

[0030] Subsequently, the first mounting base 1, the second mounting base 5, and the third mounting base 9 are installed onto the inspection fixture using screws and pins;

[0031] Place the sheet metal part 12 on the inspection fixture, and turn the handle of the clamp 2 to make the clamp 2 clamped. At this time, the pressure head 11 is in contact with the sheet metal part 12.

[0032] After the part inspection is completed, move the handle of clamp 2 and rotate it in the opposite direction to open clamp 2. At this time, the pressure head 11 is separated from the sheet metal part 12.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for automotive inspection tools, characterized in that, The third mounting base (9) is provided with a clamping arm (10) for clamping the test piece connected to the upper left side of the third mounting base (9) via a rotating connector. A clamping member is connected to the upper end of the clamping arm (10). A pulling member is provided on the left side of the third mounting base (9) for pulling the clamping arm (10) to one side to drive the upper end to clamp the test piece. A support member is provided at the bottom of the pulling member.

2. The vehicle inspection fixture clamping device according to claim 1, characterized in that: The clamping element includes a pressure head (11) installed at the lower part of the upper end of the clamping arm (10).

3. The vehicle inspection fixture clamping device according to claim 2, characterized in that: The rotating connector includes a groove on the upper left side of the third mounting base (9), and the lower part of the clamping arm (10) is located in the inner cavity of the groove and is rotatably connected to the third mounting base (9) by the second shaft pin (8).

4. The vehicle inspection fixture clamping device according to claim 1, characterized in that: The pulling member includes a clamping device disposed on the left side of the third mounting base (9). The actuating end of the clamping device is connected to a guide rod (4) via a connector. The other end of the guide rod (4) is engaged at the lower end of the clamping arm (10) and is rotatably connected to the clamping arm (10) via a first shaft pin (6).

5. The vehicle inspection fixture clamping device according to claim 4, characterized in that: The support includes a first mounting base (1) and a second mounting base (5). The moving end of the first mounting base (1) passes through the first mounting base (1). A linear bearing is fixedly inserted into the surface of the second mounting base (5). The surface of the guide rod (4) is fixedly inserted into the inner cavity of the linear bearing.

6. The vehicle inspection fixture clamping device according to claim 5, characterized in that: The connector includes a screw (3) threaded to the operating end of the clamp, and the other end of the screw (3) is threaded to one end of the guide rod (4).