Detection table for automobile body welding part

Abstract

The utility model relates to the technical field of detection of automobile body welding parts, in particular to a detection table for automobile body welding parts, which comprises a base frame, two supporting plates are arranged at the top end of the base frame, and a first support and a second support are obliquely arranged between the two supporting plates. The two sides of the first support and the two sides of the second support are installed on the two supporting plates correspondingly, a first lifting frame is obliquely arranged between the first support and the second support, a second lifting frame is obliquely arranged on the side, away from the first support, of the second support, and two telescopic cylinders are arranged below the second support. The top ends of the second lifting frame, the first lifting frame, the second support and the first support are evenly and rotationally provided with a plurality of first roll shafts respectively, and baffles are arranged at the ends, close to the first support, of the second support, the first lifting frame and the second lifting frame respectively. The utility model provides the detection bench for the automobile body welding part, which simplifies the detection operation of the automobile body welding part so as to continuously and efficiently detect the automobile body welding part.

Description

Technical Field

[0001] This utility model relates to the field of testing technology for automotive body welded parts, and specifically to a testing table for automotive body welded parts. Background Technology

[0002] For automobile body manufacturing, welded body components play a crucial role, forming indispensable key parts of the car body. The manufacturing process involves welding various parts, such as nuts and bolts, dashboard housings, etc., to firmly connect them to the body panels using welding technology, thus forming a complete structure. To manufacture high-quality welded body components, suitable metal sheets, profiles, and fasteners must first be carefully selected. These selected materials then undergo precise cutting, stamping, and forming before entering the welding stage, assembling them into a robust whole. Therefore, the production process of welded body components involves numerous closely linked steps, and once formed, it is irreversible. Thus, any errors during welding, such as incomplete or faulty welds on nuts and bolts or dashboard components, can lead to quality problems after assembly, and may even result in the scrapping of the entire car body. Therefore, comprehensive and rigorous testing of completed welded body components is particularly important to ensure that the final product meets quality standards.

[0003] In current automotive body production, quality inspection of welded body components primarily relies on advanced ultrasonic testing technology. Inspectors place the probe of an ultrasonic testing device on the welded areas of the body components, utilizing the penetrating properties of ultrasound to detect the quality of the welds and identify issues such as incomplete welds. Simultaneously, inspectors need to count the welded areas on the body panels to ensure no welds are missed, thus preventing missed welds. However, in practice, simultaneously performing weld quality inspection and weld count is a rather tedious task, increasing the workload of inspectors and impacting inspection efficiency. To address this issue, an automatic counting function has been integrated into the ultrasonic testing device, significantly reducing the workload of inspectors and improving the accuracy and efficiency of the inspection. For automotive bodies, due to differences in body structure across different parts, different types of body welded components are required for assembly. However, the number of welded areas varies across different types of body welded components. Since ultrasonic testing devices cannot automatically identify the specific model of a welded component, after the ultrasonic testing is completed, inspectors still need to check the recorded number of welded areas against the component's drawings to ensure consistency. Furthermore, ultrasonic testing devices cannot detect the size and precision of welded parts on the vehicle body. Inspectors must manually measure the welded parts and their welded areas, requiring them to perform complex measurements, extensive data recording and verification. This process is both time-consuming and error-prone. Therefore, there is significant room for improvement in the practical application of vehicle body welded part inspection processes to simplify the operation and enable continuous and efficient testing. Summary of the Invention

[0004] In view of the shortcomings of the prior art, this utility model provides an inspection table for automotive body welded parts that simplifies the inspection operation of automotive body welded parts so as to enable continuous and efficient inspection of automotive body welded parts, thereby overcoming the defects in the prior art.

[0005] The technical solution adopted by this utility model is as follows: a testing platform for automotive body welded parts, including a base frame, two support plates are provided on the top of the base frame, a first bracket and a second bracket are inclinedly arranged between the two support plates, the top surface of the second bracket is located above the top surface of the first bracket, the two sides of the first bracket and the second bracket are respectively mounted on the two support plates, a first lifting frame is inclinedly arranged between the first bracket and the second bracket, and a second lifting frame is inclinedly arranged on the side of the second bracket away from the first bracket, the top surfaces of the second lifting frame, the first lifting frame, the second bracket and the first bracket are parallel to each other, the top surface of the second lifting frame gradually decreases along the direction away from the second bracket, two telescopic cylinders are provided below the second bracket, one end of the two telescopic cylinders is installed on the second bracket, and the other end of the two telescopic cylinders is installed on the first lifting frame and the second lifting frame respectively, a plurality of first rollers are evenly rotatably arranged on the top of the second lifting frame, the first lifting frame, the second bracket and the first bracket, and a baffle is provided on the second bracket, the first lifting frame or the second lifting frame respectively.

[0006] Preferably, a rotating shaft is provided at the top center of the base frame, with both sides of the rotating shaft mounted on the base frame. Two sleeves are movably fitted on the rotating shaft, and the two sleeves are respectively mounted on two support plates. Two adjusting blocks are provided below the first support, and an adjusting plate is provided between the two adjusting blocks and the first support. The two sides of the adjusting plate are respectively mounted on the adjusting blocks and the first support. Adjusting grooves are opened on the two adjusting blocks, extending from one side of the adjusting block to the other side. A first cylinder is provided below the adjusting blocks and is mounted on the base frame. A fixing block is provided at the top of the first cylinder, and a fixing shaft is provided on the fixing block. The middle part of the fixing shaft is mounted on the fixing block, and both sides of the fixing shaft are movably fitted into the adjusting grooves opened in the two adjusting blocks. The diameter of the fixing shaft matches the width of the adjusting groove.

[0007] Preferably, the second support is provided with an n-shaped fixed frame on the side near the second lifting frame. The bottom ends of the two sides of the fixed frame are respectively installed on the top surface of the second support. A second cylinder is provided on the fixed frame and is installed on the horizontal plate of the fixed frame. A pressure block made of elastic material is provided at the bottom end of the second cylinder. The pressure block is in contact with the first roller shaft installed on the second support. A camera is provided on the side of the fixed frame near the first support. The acquisition end of the camera faces the second support. A first fixed plate is provided above the camera. One side of the first fixed plate is installed in the middle of the top plate of the fixed frame. A fixing groove is opened along the top surface of the first fixed plate to the bottom surface of the first fixed plate. A screw is movably fitted in the fixing groove. The bottom end of the screw is installed on the camera. A nut is threaded on the screw. The nut and the camera are respectively in contact with the first fixed plate. The screw is clamped on the first fixed plate by the nut and the camera.

[0008] Preferably, the first lifting frame and the second lifting frame are respectively provided with guide rails on the side away from the second support. The guide rails are installed on the side of the first lifting frame or the second lifting frame. A slider is movably fitted inside the guide rail. The cross-sectional shape of the slider matches the cross-sectional shape of the inner cavity of the guide rail. An L-shaped second fixing plate is provided on the side of the slider away from the second support. The two sides of the second fixing plate are respectively installed on the slider and the support plate.

[0009] Preferably, a third support is inclinedly arranged on the side of the second lifting frame away from the second support, the top surface of the third support is on the same plane as the top surface of the second support, the two sides of the third support are respectively mounted on two support plates, and a number of second rollers are evenly rotatably arranged at the top of the third support.

[0010] Preferably, guide plates are provided on both sides of the first support, the first lifting frame, the second support, the second lifting frame, and the second support. The guide plates are installed on the top surface of the first support, the first lifting frame, the second support, the second lifting frame, or the second support. The guide plates are located on the outside of the first roller or the second roller. Guide grooves are provided on the guide plates. The length of the guide grooves gradually increases along the direction of the second support closer to the first support.

[0011] The beneficial effects of this utility model are as follows: First, by using the inclined second lifting frame, first lifting frame, second support, and first support, and by having several first rollers respectively installed on each of the second lifting frame, first lifting frame, second support, and first support, the vehicle body welded parts can be rolled and conveyed along the first support, first lifting frame, second support, and second lifting frame under the action of gravity, so as to continuously convey the vehicle body welded parts for inspection, thereby improving the inspection efficiency of the vehicle body welded parts. Furthermore, the utility model uses two telescopic cylinders to drive the first and second lifting frames to lift and lower. Baffles are respectively installed on the second support, first lifting frame, and second lifting frame to block the rolling conveyed vehicle body welded parts, facilitating the sequential inspection of multiple vehicle body welded parts. Since one end of the blocked vehicle body welded part is in contact with the baffle, that end of the vehicle body welded part can be used as a positioning point, simplifying the inspection difficulty of the vehicle body welded parts.

[0012] Secondly, this invention utilizes a rotating shaft and sleeve to allow the support plate to rotate around the shaft, thereby driving the first bracket, second bracket, first lifting frame, and second lifting frame to rotate. A first cylinder pushes an adjusting block and adjusting plate to rise and fall, further rotating the first bracket, second bracket, first lifting frame, and second lifting frame around the shaft to adjust their tilt angles, thus facilitating control of the rolling conveying speed of the vehicle body welded parts. Furthermore, the invention uses a fixed frame, a second cylinder, and a pressure block to clamp and fix the rolling conveyed vehicle body welded parts on the second bracket onto the first roller shaft. A camera mounted on the fixed frame collects welding information from the rolling conveyed vehicle body welded parts, allowing the program to verify the welding quantity, size, and other information of the welded parts, detecting issues such as missing welds in nuts and dimensional inaccuracies. The screw and nut facilitate the adjustment of the camera's fixed position for collecting welding information.

[0013] Furthermore, this invention uses guide rails, sliders, and a second fixing plate to limit the lifting and lowering of the first and second lifting frames, improving the stability of their movement. A third bracket and a second roller ensure the stable delivery of the inspected vehicle body welded parts. Additionally, a guide plate constrains the sides of the rollingly conveyed vehicle body welded parts, preventing them from slipping off the sides of the first bracket, first lifting frame, second bracket, second lifting frame, or second bracket. Guide grooves on the guide plate facilitate the rolling conveying of the vehicle body welded parts via the first or second roller, ensuring stable transport of the welded parts. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is an exploded view of the assembly of the base frame and adjustment plate in this utility model.

[0016] Figure 3 This is a perspective view of the assembly of the two support plates with the first bracket, the second bracket, the first lifting frame, the second lifting frame, the rotating shaft, and the third bracket in this utility model.

[0017] Figure 4 This is a perspective view of the assembly of one of the support plates in this utility model with the first bracket, the second bracket, the first lifting frame, the second lifting frame, and the third bracket.

[0018] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0019] Figure 6 This is an exploded view of the assembly of the second fixed plate, the second lifting frame, the second bracket, the first lifting frame, and the telescopic cylinder in this utility model.

[0020] Figure 7 This is a schematic diagram of the structure of the first lifting frame in this utility model.

[0021] Figure 8 This is a schematic diagram of the assembly of the fixing frame, the second cylinder, and the camera in this utility model. Detailed Implementation

[0022] like Figures 1 to 8As shown, an inspection table for automotive body welded parts includes a base frame 1. Two support plates 2 are mounted on the top of the base frame 1. A first bracket 3 and a second bracket 4 are obliquely arranged between the two support plates 2. The top surface of the second bracket 4 is located above the top surface of the first bracket 3. The first bracket 3 and the second bracket 4 are respectively mounted on the two support plates 2 on both sides. A first lifting frame 5 is obliquely arranged between the first bracket 3 and the second bracket 4. A second lifting frame 6 is obliquely arranged on the side of the second bracket 4 away from the first bracket 3. The top surfaces of the second lifting frame 6, the first lifting frame 5, the second bracket 4, and the first bracket 3 are parallel to each other. The top surface of the second lifting frame 6 gradually decreases in the direction away from the second bracket 4. Two telescopic cylinders 7 are arranged below the second bracket 4. One end of each telescopic cylinder 7 is mounted on the second bracket 4, and the other ends are respectively mounted on the first lifting frame 5 and the second lifting frame 6. By controlling the extension or retraction of the two telescopic cylinders 7, the first lifting frame 5 and the second lifting frame 6 are raised and lowered. A plurality of first rollers 8 are evenly and rotatably mounted on the top of a support 3, allowing the welded parts of the vehicle body to be rolled and conveyed along the first support 3, the first lifting frame 5, the second support 4, and the second lifting frame 6 under the action of gravity. A baffle 9 is respectively provided at one end of the second support 4, the first lifting frame 5, or the second lifting frame 6 near the first support 3. The baffle 9 is installed on the second support 4, the first lifting frame 5, or the second lifting frame 6, and the top of the baffle 9 is located below the top of the first rollers 8 mounted on the first lifting frame 5, the second support 4, or the second lifting frame 6. The first rollers 8 on the bracket 4 are all located on the side of the baffle 9 installed on the second bracket 4 away from the first bracket 3. The first rollers 8 on the first lifting frame 5 are all located on the side of the baffle 9 installed on the first lifting frame 5 away from the first bracket 3. The first rollers 8 on the second lifting frame 6 are all located on the side of the baffle 9 installed on the second lifting frame 6 away from the first bracket 3. This is so that the baffle 9 can be used to block the rolling conveyed body welding parts, making it easier to inspect multiple body welding parts in sequence, thereby simplifying the inspection difficulty of body welding parts.

[0023] In this embodiment, a rotating shaft 10 is provided at the top center of the base frame 1. Two sides of the rotating shaft 10 are respectively mounted on the base frame 1. Two sleeves 11 are movably fitted onto the rotating shaft 10, and the two sleeves 11 are respectively mounted on two support plates 2, allowing the two support plates 2 to rotate around the rotating shaft 10, thereby driving the first bracket 3, the second bracket 4, the first lifting frame 5, and the second lifting frame 6 to rotate. Two adjusting blocks 12 are provided below the first bracket 3. An adjusting plate 13 is provided between the two adjusting blocks 12 and the first bracket 3. The two sides of the adjusting plate 13 are respectively mounted on the adjusting blocks 12 and the first bracket 3. Adjusting grooves 14 are respectively formed on the two adjusting blocks 12, with the adjusting grooves 14 extending along one side of the adjusting block 12. On the other side of the adjusting block 12, a first cylinder 15 is provided below the adjusting block 12. The first cylinder 15 is mounted on the base frame 1. A fixing block 16 is provided on the top of the first cylinder 15. A fixing shaft 17 is provided on the fixing block 16. The middle part of the fixing shaft 17 is mounted on the fixing block 16. The two sides of the fixing shaft 17 are respectively movably fitted into the adjusting grooves 14 opened in the two adjusting blocks 12. The diameter of the fixing shaft 17 matches the groove width of the adjusting groove 14. By controlling the extension and retraction of the first cylinder 15, the adjusting block 12 and the adjusting plate 13 are pushed to rise and fall, thereby adjusting the tilt angle of the first bracket 3, the second bracket 4, the first lifting frame 5 and the second lifting frame 6, so as to control the rolling conveying speed of the vehicle body welding parts.

[0024] Please refer to it again. Figure 1 , 4In the second bracket 4, near the second lifting frame 6, an n-shaped fixing frame 18 is provided. The bottom ends of both sides of the fixing frame 18 are respectively installed on the top surface of the second bracket 4. A second cylinder 19 is provided on the fixing frame 18 and is installed on the horizontal plate of the fixing frame 18. A pressure block 20 made of elastic material is provided at the bottom end of the second cylinder 19. The pressure block 20 contacts the first roller shaft 8 installed on the second bracket 4, thereby facilitating the clamping and fixing of the rolling conveyed car body welding parts on the second bracket 4 onto the first roller shaft 8. A camera 21 is provided on the fixing frame 18 near the first bracket 3. The acquisition end of the camera 21 faces the second bracket 4. The camera 21 acquires the welding information of the rolling conveyed car body welding parts on the second bracket 4 so that the program can be used to process the welding information. The welding quantity and size of the body welding parts are checked to detect missing welds in the nuts, dimensional inaccuracies, etc. A first fixing plate 22 is set above the camera 21. One side of the first fixing plate 22 is installed in the middle of the top plate of the fixing frame 18. A fixing groove 23 is opened from the top surface of the first fixing plate 22 to the bottom surface of the first fixing plate 22. A screw 24 is movably fitted in the fixing groove 23. The bottom end of the screw 24 is installed on the camera 21. A nut 25 is threaded on the screw 24. The nut 25 and the camera 21 are in contact with the first fixing plate 22. The screw 24 is clamped on the first fixing plate 22 by the nut 25 and the camera 21, so as to facilitate the adjustment of the fixed position of the camera 21 for the purpose of collecting welding information.

[0025] Specifically, the first lifting frame 5 and the second lifting frame 6 are respectively provided with guide rails 26 on the side away from the second support 4. The guide rails 26 are installed on the side of the first lifting frame 5 or the second lifting frame 6. A slider 27 is movably fitted inside the guide rail 26. The cross-sectional shape of the slider 27 matches the cross-sectional shape of the inner cavity of the guide rail 26. An L-shaped second fixing plate 28 is provided on the side of the slider 27 away from the second support 4. The two sides of the second fixing plate 28 are respectively installed on the slider 27 and the support plate 2, thereby limiting the lifting of the first lifting frame 5 and the second lifting frame 6 and improving the stability of the lifting movement of the first lifting frame 5 and the second lifting frame 6.

[0026] In this embodiment, a third support 29 is inclinedly arranged on the side of the second lifting frame 6 away from the second support 4. The plane on which the top surface of the third support 29 is located is on the same plane as the plane on which the top surface of the second support 4 is located. The two sides of the third support 29 are respectively installed on two support plates 2. Several second rollers 30 are evenly rotated at the top of the third support 29. Since it is difficult to ensure the stability of the body welding parts when the second lifting frame 6 is raised and lowered, the third support 29 is used to guide and transport the body welding parts handed to the second lifting frame 6 so as to stably send the inspected body welding parts out of this utility model.

[0027] Specifically, guide plates 31 are respectively provided on both sides of the first support 3, the first lifting frame 5, the second support 4, the second lifting frame 6, and the second support 4. The guide plates 31 are installed on the top surface of the first support 3, the first lifting frame 5, the second support 4, the second lifting frame 6, or the second support 4, thereby constraining the rolling conveyed body welding parts and preventing them from slipping off the sides of the first support 3, the first lifting frame 5, the second support 4, the second lifting frame 6, or the second support 4. The guide plates 31 are located on the outside of the first roller shaft 8 or the second roller shaft 30, and guide grooves 32 are provided on the guide plates 31. The length of the guide grooves 32 gradually increases along the direction of the second support 4 towards the first support 3, thereby facilitating the rolling conveying of the body welding parts through the first roller shaft 8 or the second roller shaft 30.

[0028] The instructions for using this product are as follows: Figures 1 to 8 As shown, firstly, the telescopic cylinder 7 connected to the second lifting frame 6 is extended to control the baffle 9 installed on the second lifting frame 6 to be higher than the top of the second support 4, and the telescopic cylinder 7 connected to the first lifting frame 5 is shortened to control the baffle 9 installed on the first lifting frame 6 to be lower than the top of the first support 3.

[0029] Next, the body welded parts to be inspected are placed on the first bracket 3, thus transferring them to the first lifting frame 5. One side of the welded part contacts the baffle 9 mounted on the second bracket 4. Then, by controlling the extension of the telescopic cylinder 7 connected to the first lifting frame 5, the welded parts conveyed on the first lifting frame 5 are raised above the baffle 9 mounted on the second bracket 4, transferring them to the second bracket 4, where they contact the baffle 9 mounted on the second lifting frame 6. Then, the camera 21 captures images of the welded parts conveyed on the second bracket 4 to determine the number and size of the welded parts. By controlling the extension of the second cylinder 19, the pressure block 20 clamps and fixes the welded parts on the second bracket 4 onto the first roller shaft 8, allowing for inspection using ultrasonic testing equipment. After the inspection is completed, the two telescopic cylinders 7 and the second cylinder 19 are shortened respectively, so that the baffle 9 installed on the second lifting frame 6 is lower than the top of the second support 4, and the fixing of the rolling conveyor of the body welding parts on the second support 4 is released, so that the body welding parts rolling on the second support 4 are output through the second lifting frame 6 and the third support 29, thereby completing the inspection of the body welding parts. At the same time, the body welding parts continuously placed on the first support 3 are moved by the shortened telescopic cylinder 7, causing the baffle 9 installed on the first lifting frame 6 to be lower than the top of the first support 3, so that the body welding parts placed on the first support 3 are transferred to the first lifting frame 5 again through the first support 3. By repeating the above operation, the inspection of the body welding parts can be continuously completed. It should be noted that different types of body welding parts have different structures, so the conveying speed of different types of body welding parts is also different. By controlling the extension and retraction of the first cylinder 15, the tilt angle of the first support 3, the second support 4, the first lifting frame 5 and the second lifting frame 6 can be adjusted to meet the conveying speed requirements of different types of body welding parts.

[0030] In this embodiment, the inclined second lifting frame 6, first lifting frame 5, second support 4, and first support 3, along with several first rollers 5 respectively installed on each of these components, allow the vehicle body welded parts to roll and be conveyed along the first support 3, first lifting frame 5, second support 4, and second lifting frame 6 under the influence of gravity. This facilitates continuous conveying of the welded parts for inspection, thereby improving the inspection efficiency. Furthermore, the two telescopic cylinders 7 enable the first lifting frame 5 and second lifting frame 6 to rise and fall. Baffles 9 are installed on the second support 4, first lifting frame 5, and second lifting frame 6 to block the rolling welded parts, allowing for sequential inspection of multiple welded parts. Since one end of the blocked welded part contacts the baffle, this end serves as a positioning point, simplifying the inspection process.

[0031] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A testing station for a bodywork welding piece of a motor vehicle, comprising a base frame (1), characterized in that: Two support plates (2) are provided on the top of the base frame (1). A first bracket (3) and a second bracket (4) are inclinedly arranged between the two support plates (2). The plane of the top surface of the second bracket (4) is located above the plane of the top surface of the first bracket (3). The two sides of the first bracket (3) and the second bracket (4) are respectively installed on the two support plates (2). A first lifting frame (5) is inclinedly arranged between the first bracket (3) and the second bracket (4). A second lifting frame (6) is inclinedly arranged on the side of the second bracket (4) away from the first bracket (3). The top surfaces of the second lifting frame (6), the first lifting frame (5), the second bracket (4) and the first bracket (3) are parallel to each other. The top surface of the second lifting frame (6) is parallel to the first bracket (3). The direction gradually decreases away from the second support (4). Two telescopic cylinders (7) are provided below the second support (4). One end of each telescopic cylinder (7) is installed on the second support (4), and the other end of each telescopic cylinder (7) is installed on the first lifting frame (5) and the second lifting frame (6), respectively. Several first rollers (8) are evenly rotated on the top of the second lifting frame (6), the first lifting frame (5), the second support (4), and the first support (3). A baffle (9) is provided at the end of the second support (4), the first lifting frame (5), and the second lifting frame (6) near the first support (3), respectively. The baffle (9) is installed on the second support (4), the first lifting frame (5), or the second lifting frame (6).

2. The station for testing automobile bodywork welds according to claim 1, characterized in that: A rotating shaft (10) is provided at the top center of the base frame (1). The two sides of the rotating shaft (10) are respectively installed on the base frame (1). Two sleeves (11) are movably fitted on the rotating shaft (10). The two sleeves (11) are respectively installed on two support plates (2). Two adjusting blocks (12) are provided below the first bracket (3). An adjusting plate (13) is provided between the two adjusting blocks (12) and the first bracket (3). The two sides of the adjusting plate (13) are respectively installed on the adjusting blocks (12) and the first bracket (3). Adjusting grooves (14) are respectively opened on the two adjusting blocks (12) for adjustment. The groove (14) extends from one side of the adjusting block (12) to the other side of the adjusting block (12). A first cylinder (15) is provided below the adjusting block (12). The first cylinder (15) is mounted on the base frame (1). A fixing block (16) is provided on the top of the first cylinder (15). A fixing shaft (17) is provided on the fixing block (16). The middle part of the fixing shaft (17) is mounted on the fixing block (16). The two sides of the fixing shaft (17) are respectively movably fitted into the adjusting grooves (14) opened in the two adjusting blocks (12). The diameter of the fixing shaft (17) matches the groove width of the adjusting groove (14).

3. The station for testing automotive body weldments of claim 1, wherein: The second support (4) is provided with an n-shaped fixed frame (18) on the side near the second lifting frame (6). The bottom ends of the two sides of the fixed frame (18) are respectively installed on the top surface of the second support (4). A second cylinder (19) is provided on the fixed frame (18). The second cylinder (19) is installed on the horizontal plate of the fixed frame (18). A pressure block (20) made of elastic material is provided at the bottom end of the second cylinder (19). The pressure block (20) is in contact with the first roller (8) installed on the second support (4). A camera (21) is provided on the side of the fixed frame (18) near the first support (3). The acquisition end of the camera (21) faces the second support (4). A first fixing plate (22) is provided above the camera (21). One side of the first fixing plate (22) is installed in the middle of the top plate of the fixing frame (18). A fixing groove (23) is provided along the top surface of the first fixing plate (22) to the bottom surface of the first fixing plate (22). A screw (24) is movably fitted in the fixing groove (23). The bottom end of the screw (24) is installed on the camera (21). A nut (25) is threaded on the screw (24). The nut (25) and the camera (21) are in contact with the first fixing plate (22) respectively. The screw (24) is clamped on the first fixing plate (22) by the nut (25) and the camera (21).

4. The station for testing automotive body weldments of claim 1, wherein: The first lifting frame (5) and the second lifting frame (6) are respectively provided with guide rails (26) on the side away from the second support (4). The guide rails (26) are installed on the side of the first lifting frame (5) or the second lifting frame (6). A slider (27) is movably fitted inside the guide rail (26). The cross-sectional shape of the slider (27) matches the cross-sectional shape of the inner cavity of the guide rail (26). The side of the slider (27) away from the second support (4) is provided with a second fixing plate (28) with an L-shaped structure. The two sides of the second fixing plate (28) are respectively installed on the slider (27) and the support plate (2).

5. The station for testing automotive body weldments of claim 1 wherein: The second lifting frame (6) is inclined to the side away from the second support (4) with a third support (29). The top surface of the third support (29) is on the same plane as the top surface of the second support (4). The two sides of the third support (29) are respectively installed on two support plates (2). Several second rollers (30) are evenly rotated at the top of the third support (29).

6. The station for testing automotive body weldments of claim 5, wherein: The first support (3), the first lifting frame (5), the second support (4), the second lifting frame (6) and the second support (4) are respectively provided with guide plates (31) on both sides. The guide plates (31) are installed on the top surface of the first support (3), the first lifting frame (5), the second support (4), the second lifting frame (6) or the second support (4). The guide plates (31) are located on the outside of the first roller (8) or the second roller (30). The guide plates (31) are provided with guide grooves (32). The length of the guide grooves (32) gradually increases along the direction of the second support (4) closer to the first support (3).

Images