Lightweight vehicle door beam testing fixture structure

Abstract

The utility model relates to vehicle door crash beam detection technical field, concretely is a kind of lightweight vehicle door crash beam gauge structure, including aluminium alloy frame body, the bottom surface on the two vertical plate end of aluminium alloy frame body is fixed with bottom plate, the bottom surface on the horizontal plate end of aluminium alloy frame body is equipped with detection mechanism, the detection mechanism includes two mounting plates, respectively with the detachable fixed dial gauge body and go gauge body, moving assembly, the moving assembly includes the fixed plate for driving two mounting plates to move left and right and is located the below of aluminium alloy frame body horizontal plate end, the utility model sets up aluminium alloy frame body and realizes lightweight, solve the problem of traditional gauge thick heavy difficult to carry;Through mounting plate setting, solve the inconvenient problem of dial gauge body and go gauge body disassembly;Through moving assembly and angle adjusting assembly, solve the problem that detection component adjusting range is small, difficult to adapt to crash beam multi-position detection.

Description

Technical Field

[0001] This utility model relates to the field of vehicle door anti-collision beam detection technology, specifically a lightweight vehicle door anti-collision beam inspection fixture structure. Background Technology

[0002] In the automotive manufacturing industry, door anti-collision beams are a key component of the vehicle's passive safety system. Their dimensional accuracy and the precision of their outline directly determine the energy absorption efficiency and the protection effect on occupants during a collision. Therefore, they must undergo comprehensive testing with the help of professional inspection tools before leaving the factory. In recent years, as the automotive industry has accelerated its transformation towards lightweight design and efficient production, many of the adaptability defects of traditional door anti-collision beam inspection tools in practical applications have become increasingly prominent.

[0003] First, to ensure structural strength, traditional door anti-collision beam inspection fixtures are mostly made of heavy metal materials such as cast iron and cast steel, resulting in a generally large overall weight of the fixtures. This not only requires more manpower or the use of lifting equipment during the handling, installation and workstation adjustment of the fixtures in the workshop, which significantly increases production auxiliary costs and operational complexity, but also makes it difficult to flexibly adapt to multi-workstation rotation inspection scenarios due to weight limitations, reducing the versatility and ease of use of the fixtures.

[0004] Secondly, traditional inspection fixtures have significant shortcomings in terms of adjusting and disassembling the inspection components. On the one hand, core inspection components such as dial indicators and go / no-go gauges are mostly connected to the fixture body by welding or multi-layered complex bolt structures. When calibrating, maintaining, or replacing these components, multiple related parts need to be disassembled, making the operation cumbersome and time-consuming, which seriously affects inspection efficiency. On the other hand, the position adjustment of the inspection components mainly relies on manual operation, which can only achieve simple movement in a single horizontal or vertical direction. It cannot flexibly adjust the front and rear positions, inspection height, and angle according to the curved shape of the door anti-collision beam and the requirements of inspection points at different heights. This leads to blind spots during the inspection process, making it difficult to fully cover all key inspection areas. Some minor dimensional deviations may be missed, increasing the quality risk of unqualified products entering the market. Against this background, we propose a lightweight door anti-collision beam inspection fixture structure. Utility Model Content

[0005] The purpose of this utility model is to provide a lightweight door anti-collision beam inspection fixture structure. It achieves lightweight by setting an aluminum alloy frame, solving the problem of traditional fixtures being heavy and difficult to transport. The installation plate solves the problem of inconvenient disassembly and assembly of the dial indicator body and the go / no-go gauge body. The moving component and the angle adjustment component solve the problem of small adjustment range of the detection components and difficulty in adapting to the detection of multiple parts of the anti-collision beam.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A lightweight vehicle door anti-collision beam inspection fixture structure includes an aluminum alloy frame. A base plate is fixed to the bottom surface of each of the two vertical ends of the aluminum alloy frame. A detection mechanism is provided on the bottom surface of the horizontal end of the aluminum alloy frame. The detection mechanism includes two mounting plates, a dial indicator body detachably fixed to each of the two mounting plates, a go / no-go gauge body, and a moving assembly. The moving assembly includes a fixed plate located below the horizontal end of the aluminum alloy frame and used to drive the two mounting plates to move left and right, and a screw rotatably connected between the two vertical ends of the aluminum alloy frame and used to drive the fixed plate to move. The detection mechanism further includes: An angle adjustment assembly is installed on the bottom surface of the fixed plate and is used to adjust the angle of the two mounting plates. The angle adjustment assembly includes a turntable rotatably connected to the bottom surface of the fixed plate, a rotary motor installed on the outer wall of the fixed plate and used to drive the turntable to rotate, two L-shaped plates located below the turntable, and two electric cylinders installed on the outer wall of the turntable and used to drive the two L-shaped plates to lift and lower respectively. A flipping motor for driving the turntable on the same side to flip is installed on the outer wall of each of the two L-shaped plates.

[0007] In a preferred embodiment, the moving assembly further includes two rotating columns that are rotatably connected to the two vertical plate ends of the aluminum alloy frame, a moving plate that is fixed on the top surface of the fixed plate and slidably connected to the horizontal plate end of the aluminum alloy frame, and a moving motor that is installed on the outer wall of one of the vertical plate ends of the aluminum alloy frame and is used to drive the rotating columns on the same side to rotate. The screw is coaxially fixed between the two rotating columns and threadedly connected to the moving plate. In a preferred embodiment, the moving assembly further includes a rotating rod coaxially fixed to the surface of one of the rotating columns away from the screw, a rotating shaft coaxially connected to the output shaft of the moving motor, and a driving moving gear and a driven moving gear meshing with each other. The driving moving gear and the driven moving gear are respectively coaxially fixed on the outer circumferential walls of the rotating shaft and the rotating rod, and the number of teeth on the outer wall of the driving moving gear is less than the number of teeth on the outer wall of the driven moving gear. In a preferred embodiment, the bottom surface of the horizontal plate end of the aluminum alloy frame is provided with a guide groove arranged in a horizontal direction, and a guide block that is slidably connected to the guide groove on the bottom surface of the horizontal plate end of the aluminum alloy frame is fixed on the top surface of the movable plate. In a preferred embodiment, the longitudinal cross-sectional shape of the guide groove on the bottom end of the aluminum alloy frame plate is I-shaped, and the shape of the guide block is I-shaped to match the shape of the guide groove on the bottom end of the aluminum alloy frame plate. These four settings make the screw rotation drive more stable, enabling more reliable left and right movement of the fixed plate and detection components, improving the controllability of the detection component movement, making the power transmission of the moving motor smoother, achieving a deceleration effect, improving the accuracy of the left and right movement of the detection component, allowing the moving plate to slide along a fixed trajectory during left and right movement to avoid deviation, improving the stability of the detection component movement, making the connection between the moving plate and the aluminum alloy frame tighter, preventing vertical movement during movement, and further improving the stability of the detection component movement.

[0008] In a preferred embodiment, the angle adjustment assembly further includes a rotating roller coaxially fixed to the top surface of the turntable and rotatably connected to the fixed plate, a driving rotating gear and a driven rotating gear located between the turntable and the fixed plate and meshing with each other, and a connecting column coaxially connected to the output shaft of the rotary motor. The driven rotating gear is coaxially fixed to the outer circumference of the rotating roller, and the driving rotating gear is coaxially fixed to the outer circumference of the connecting column. In a preferred embodiment, the two L-shaped plates are symmetrical to each other, the cylinder body of the electric cylinder is installed on the bottom surface of the turntable near the edge, the piston rod of the electric cylinder passes through the top surface of the turntable and extends to the bottom of the turntable, and the horizontal plate end of the L-shaped plate is fixed on the bottom surface of the piston rod of the electric cylinder on the same side. In a preferred embodiment, the angle adjustment assembly further includes two flip rollers that are rotatably connected to the vertical ends of the two L-shaped plates, two connecting rods fixed on the surface of the flip rollers on the same side away from the vertical ends of the L-shaped plates on the same side, the mounting plate fixed on the bottom surface of the connecting rods on the same side, the output shaft of the flip motor coaxially connected to the flip rollers on the same side, and the dial indicator body and the go / no-go gauge body are both fixedly connected to the mounting plate on the same side by several screws. These three settings enable the rotary motor to stably drive the turntable, ensuring more precise adjustment of the front and rear positions of the inspection components, allowing the two L-shaped plates to rise and fall stably respectively, facilitating individual adjustment of the height of the corresponding inspection components to adapt to different inspection height requirements, enabling the inspection components to flip stably, and making disassembly and assembly more convenient, thereby improving inspection flexibility and maintenance convenience.

[0009] In a preferred embodiment, an anti-slip plate adapted to the shape of the base plate is fixed on the bottom surface of the base plate. The thickness of the anti-slip plate is 1cm-2cm, and the bottom surface of the anti-slip plate is provided with anti-slip texture. This feature increases the friction between the gauge and the placement surface, preventing slippage during operation and significantly improving the overall support stability of the gauge.

[0010] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model replaces traditional heavy materials with an aluminum alloy frame, achieving an overall lightweight design for the inspection tool, significantly reducing the difficulty of handling and installation, and reducing energy consumption during use; at the same time, the combination of the base plate and anti-slip plate allows the inspection tool to stably fit the placement surface during operation, avoiding positional displacement due to vibration, thus improving the stability of the device support, achieving the effect of balancing lightweight and operational reliability, and adapting to the placement needs of different working scenarios. 2. This utility model, through the setting of the moving component, uses a screw, moving plate and other structures to drive the mounting plate to move left and right, realizing flexible adjustment of the lateral position of the dial indicator body and the go / no-go gauge body; in addition, with the coordinated action of the turntable, electric cylinder and tilting motor in the angle adjustment component, it can not only adjust the front and rear position and height of the detection component, but also drive it to tilt, realizing multi-dimensional adjustment of the detection angle and position, thus expanding the detection range, adapting to the detection needs of different parts of the door anti-collision beam, and improving the comprehensiveness and accuracy of the detection. Attached Figure Description

[0011] Figure 1 This is one of the overall structural schematic diagrams of this utility model; Figure 2 This is the second schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of the detection mechanism in this utility model; Figure 4 This is one of the exploded views of the testing mechanism in this utility model; Figure 5 This is an exploded view of the moving component in this utility model; Figure 6 This is the second partial exploded view of the testing mechanism in this utility model; The meanings of the labels in the diagram are as follows: 1. Aluminum alloy frame; 11. Base plate; 12. Anti-slip plate; 2. Detection mechanism; 21. Mounting plate; 22. Dial gauge body; 23. Go / no-go gauge body; 24. Moving assembly; 241. Rotating column; 242. Screw; 243. Moving plate; 244. Guide block; 245. Moving motor; 246. Rotating rod; 247. Driving moving gear; 248. Driven moving gear; 249. Rotating shaft; 2410. Fixed plate; 25. Angle adjustment assembly; 251. Turntable; 252. Rotating roller; 253. L-shaped plate; 254. Electric cylinder; 255. Tilting roller; 256. Connecting rod; 257. Tilting motor; 258. Rotating motor; 259. Connecting column; 2510. Driving rotating gear; 2511. Driven rotating gear. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0013] Please see Figures 1-5 This utility model provides a technical solution: a lightweight door anti-collision beam inspection fixture structure, including an aluminum alloy frame 1, with a base plate 11 fixed on the bottom surface of each of the two vertical plate ends of the aluminum alloy frame 1, and a detection mechanism 2 provided on the bottom surface of the horizontal plate end of the aluminum alloy frame 1. The detection mechanism 2 includes two mounting plates 21, a dial indicator body 22 detachably fixed to the two mounting plates 21 respectively, a go / no-go gauge body 23, and a moving component 24. The moving component 24 includes a fixed plate 2410 located below the horizontal plate end of the aluminum alloy frame 1 and used to drive the two mounting plates 21 to move left and right, and a screw 242 rotatably connected between the two vertical plate ends of the aluminum alloy frame 1 and used to drive the fixed plate 2410 to move. By setting up the aluminum alloy frame 1, the base plate 11, and the detection mechanism 2, the inspection tool can be both lightweight and provide stable support, making it easy to disassemble and assemble the inspection components. It can also drive the inspection components to move left and right, greatly expanding the inspection range.

[0014] In this embodiment, the moving component 24 also includes two rotating columns 241 that are rotatably connected to the two vertical plate ends of the aluminum alloy frame 1, a moving plate 243 that is fixed on the top surface of the fixed plate 2410 and slidably connected to the horizontal plate end of the aluminum alloy frame 1, a moving motor 245 that is installed on the outer wall of one of the vertical plate ends of the aluminum alloy frame 1 and is used to drive the rotating column 241 on the same side to rotate, and a screw 242 that is coaxially fixed between the two rotating columns 241 and threadedly connected to the moving plate 243. The rotating column 241, moving plate 243, and moving motor 245 in the moving component 24 make the screw 242 rotate more stably, and can reliably drive the fixed plate 2410 and the detection component to move left and right, avoiding jamming or deviation during the movement, and improving the controllability and stability of the movement of the detection component.

[0015] In addition, the moving assembly 24 also includes a rotating rod 246 coaxially fixed to the surface of one of the rotating columns 241 away from the screw 242, a rotating shaft 249 coaxially connected to the output shaft of the moving motor 245, and a driving moving gear 247 and a driven moving gear 248 meshing with each other. The driving moving gear 247 and the driven moving gear 248 are respectively coaxially fixed on the outer circumference of the rotating shaft 249 and the rotating rod 246, and the number of teeth on the outer wall of the driving moving gear 247 is less than the number of teeth on the outer wall of the driven moving gear 248. The moving component 24 uses a rotating rod 246, a rotating shaft 249, a driving moving gear 247, and a driven moving gear 248. The driving gear has fewer teeth than the driven gear, which makes the power transmission of the moving motor 245 smoother, achieves a deceleration effect, reduces the movement error of the detection component, and improves the movement accuracy.

[0016] Furthermore, a guide groove is provided on the bottom surface of the horizontal plate end of the aluminum alloy frame 1, and a guide block 244 is fixed on the top surface of the moving plate 243, which is slidably connected to the guide groove on the bottom surface of the horizontal plate end of the aluminum alloy frame 1. The guide groove at the horizontal end of the aluminum alloy frame 1 and the guide block 244 of the moving plate 243 allow the moving plate 243 to move along a fixed trajectory, preventing left and right deviation and ensuring that the detection component always moves within the preset range, providing a stable foundation for accurate detection.

[0017] Specifically, the longitudinal cross-sectional shape of the guide groove on the bottom surface of the horizontal plate of the aluminum alloy frame 1 is I-shaped, and the shape of the guide block 244 is I-shaped to match the shape of the guide groove on the bottom surface of the horizontal plate of the aluminum alloy frame 1. The I-shaped guide groove and the matching I-shaped guide block 244 make the moving plate 243 more tightly connected to the aluminum alloy frame 1, preventing it from moving up and down during movement, further improving the stability of the movement of the detection component and reducing detection deviation caused by shaking.

[0018] like Figures 1-4 , Figure 6 As shown, it is worth noting that the detection mechanism 2 also includes: an angle adjustment component 25, which is set on the bottom surface of the fixed plate 2410 and is used to adjust the angle of the two mounting plates 21. The angle adjustment component 25 includes a turntable 251 rotatably connected to the bottom surface of the fixed plate 2410, a rotary motor 258 installed on the outer wall of the fixed plate 2410 and used to drive the turntable 251 to rotate, two L-shaped plates 253 located below the turntable 251, and two electric cylinders 254 installed on the outer wall of the turntable 251 and used to drive the two L-shaped plates 253 to rise and fall respectively. A flipping motor 257 for driving the turntable 251 on the same side to flip is installed on the outer wall of the two L-shaped plates 253. By setting the angle adjustment component 25, the front-to-back and height positions of the dial indicator body 22 and the go / no-go gauge body 23 can be adjusted. It also facilitates the rotation of the dial indicator body 22 and the go / no-go gauge body 23, increasing the detection range of the go / no-go gauge body 23 and the dial indicator body 22, thereby achieving the effect of multi-angle measurement.

[0019] It is worth noting that the angle adjustment assembly 25 also includes a rotating roller 252 coaxially fixed on the top surface of the turntable 251 and rotatably connected to the fixed plate 2410, a driving rotating gear 2510 and a driven rotating gear 2511 located between the turntable 251 and the fixed plate 2410 and meshing with each other, and a connecting column 259 coaxially connected to the output shaft of the rotary motor 258. The driven rotating gear 2511 is coaxially fixed on the outer circumference of the rotating roller 252, and the driving rotating gear 2510 is coaxially fixed on the outer circumference of the connecting column 259. The rotating roller 252, the active rotating gear 2510, the driven rotating gear 2511, and the connecting column 259 in the angle adjustment assembly 25 enable the rotating motor 258 to stably drive the turntable 251 to rotate, ensuring accurate adjustment of the front and rear positions of the detection component and adapting to different detection position requirements.

[0020] It is worth emphasizing that the two L-shaped plates 253 are symmetrical to each other, the cylinder body of the electric cylinder 254 is installed on the bottom surface of the turntable 251 near the edge, the piston rod of the electric cylinder 254 passes through the top surface of the turntable 251 and extends to the bottom of the turntable 251, and the horizontal plate end of the L-shaped plate 253 is fixed on the bottom surface of the piston rod of the electric cylinder 254 on the same side. By using the symmetrical L-shaped plates 253 and electric cylinders 254 for installation, the two L-shaped plates 253 can be raised and lowered independently, allowing for individual adjustment of the height of the corresponding detection components. This flexibly adapts to different height detection points on the door anti-collision beam, improving the applicability of the inspection tool.

[0021] Furthermore, the angle adjustment assembly 25 also includes two flip rollers 255 that are rotatably connected to the vertical ends of the two L-shaped plates 253 respectively, two connecting rods 256 fixed on the surface of the flip rollers 255 on the same side away from the vertical ends of the L-shaped plates 253 on the same side, the mounting plate 21 is fixed on the bottom surface of the connecting rods 256 on the same side, the output shaft of the flip motor 257 is coaxially connected to the flip rollers 255 on the same side, and the dial indicator body 22 and the go / no-go gauge body 23 are both fixedly connected to the mounting plate 21 on the same side by several screws; The detection component can be stably rotated by means of the tilting roller 255, connecting rod 256, tilting motor 257 and screw fixing in the angle adjustment component 25. It is easy to disassemble and assemble, which makes it convenient to adjust the detection angle and to maintain and replace the component later.

[0022] like Figure 1-2 As shown, more specifically, an anti-slip plate 12 that matches the shape of the base plate 11 is fixed on the bottom surface of the base plate 11. The thickness of the anti-slip plate 12 is 1cm-2cm, and the bottom surface of the anti-slip plate 12 is provided with anti-slip texture. The thickness of the anti-slip plate 12 is preferably 1.5cm, which increases the friction between the gauge and the placement surface, prevents slippage during operation, significantly improves the overall support stability of the gauge, and ensures a smooth and reliable testing process.

[0023] It should be added that the moving motor 245, the two electric cylinders 254, the tilting motor 257, and the rotating motor 258 are all electrically connected to the external PLC and the external power supply respectively through wires, and the external PLC is also electrically connected to the external power supply through wires.

[0024] Finally, it should be noted that the dial indicator body 22, go / no-go gauge body 23, moving motor 245, two electric cylinders 254, tilting motor 257, rotating motor 258, and other components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching controller and power supply, are connected by wires. The specific connection methods should refer to the working principle of this utility model. The electrical connections between each electrical component are completed in the order of operation. The detailed connection methods are all technologies known in the art.

[0025] In practical use, this embodiment includes the following steps: 1. Before testing, the external PLC control device is started. If it is necessary to adjust the lateral position of the testing component, the PLC sends a command to the moving motor 245 to drive it to run, which in turn drives the moving component 24 to move, so that the dial indicator body 22 and the go / no-go gauge body 23 move left and right with the mounting plate 21 to the preset testing area. 2. When adjusting the front and rear positions, the PLC sends a signal to the rotary motor 258, causing it to drive the turntable 251 of the angle adjustment component 25 to rotate, thereby moving the detection component back and forth to match the front and rear detection points of the anti-collision beam. 3. When adjusting the height, the PLC sends commands to the two electric cylinders 254 to control their piston rods to extend and retract, thereby raising and lowering the L-shaped plate 253 on the same side, so that the detection component reaches the appropriate detection height. 4. When the detection angle needs to be adjusted, the PLC sends a command to the flipping motor 257 to drive the flipping roller 255 to rotate, which in turn drives the mounting plate 21 and the detection components to flip through the connecting rod 256, so as to achieve multi-angle alignment with the detection part; 5. After all positions and angles are adjusted to the correct positions, the PLC controls all power components to stop, and the detection components begin to detect the door anti-collision beam; after the detection is completed, the PLC controls all components to reset, waiting for the next detection command.

[0026] 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lightweight door anti-collision beam inspection fixture structure, comprising an aluminum alloy frame (1), characterized in that, The aluminum alloy frame (1) has a base plate (11) fixed on the bottom surface of each of the two vertical plate ends. The aluminum alloy frame (1) has a detection mechanism (2) on the bottom surface of the horizontal plate end. The detection mechanism (2) includes two mounting plates (21), a dial indicator body (22) detachably fixed to the two mounting plates (21) respectively, a go / no-go gauge body (23), and a moving component (24). The moving component (24) includes a fixed plate (2410) located below the horizontal plate end of the aluminum alloy frame (1) and used to drive the two mounting plates (21) to move left and right, and a screw (242) rotatably connected between the two vertical plate ends of the aluminum alloy frame (1) and used to drive the fixed plate (2410) to move. The detection mechanism (2) also includes: An angle adjustment assembly (25) is set on the bottom surface of the fixed plate (2410) and is used to adjust the angle of the two mounting plates (21). The angle adjustment assembly (25) includes a turntable (251) rotatably connected to the bottom surface of the fixed plate (2410), a rotary motor (258) installed on the outer wall of the fixed plate (2410) and used to drive the turntable (251) to rotate, two L-shaped plates (253) located below the turntable (251), two electric cylinders (254) installed on the outer wall of the turntable (251) and used to drive the two L-shaped plates (253) to lift and lower respectively, and a flipping motor (257) for driving the turntable (251) on the same side to flip is installed on the outer wall of the two L-shaped plates (253).

2. The lightweight door anti-collision beam inspection fixture structure according to claim 1, characterized in that: The moving component (24) also includes two rotating columns (241) that are rotatably connected to the two vertical plate ends of the aluminum alloy frame (1), a moving plate (243) that is fixed on the top surface of the fixed plate (2410) and slidably connected to the horizontal plate end of the aluminum alloy frame (1), and a moving motor (245) that is installed on the outer wall of one of the vertical plate ends of the aluminum alloy frame (1) and is used to drive the rotating column (241) on the same side to rotate. The screw (242) is coaxially fixed between the two rotating columns (241) and threadedly connected to the moving plate (243).

3. The lightweight door anti-collision beam inspection fixture structure according to claim 2, characterized in that: The moving assembly (24) also includes a rotating rod (246) coaxially fixed to the surface of one of the rotating columns (241) away from the screw (242), a rotating shaft (249) coaxially connected to the output shaft of the moving motor (245), and a driving moving gear (247) and a driven moving gear (248) meshing with each other. The driving moving gear (247) and the driven moving gear (248) are respectively coaxially fixed on the outer circumference of the rotating shaft (249) and the rotating rod (246), and the number of teeth on the outer wall of the driving moving gear (247) is less than the number of teeth on the outer wall of the driven moving gear (248).

4. The lightweight door anti-collision beam inspection fixture structure according to claim 2, characterized in that: The bottom surface of the horizontal plate of the aluminum alloy frame (1) is provided with a guide groove arranged in a horizontal direction, and the top surface of the movable plate (243) is fixed with a guide block (244) that is slidably connected to the guide groove on the bottom surface of the horizontal plate of the aluminum alloy frame (1).

5. The lightweight door anti-collision beam inspection fixture structure according to claim 4, characterized in that: The longitudinal cross-sectional shape of the guide groove on the bottom surface of the horizontal plate of the aluminum alloy frame (1) is I-shaped, and the shape of the guide block (244) is I-shaped to match the shape of the guide groove on the bottom surface of the horizontal plate of the aluminum alloy frame (1).

6. The lightweight door anti-collision beam inspection fixture structure according to claim 1, characterized in that: The angle adjustment assembly (25) further includes a rotating roller (252) coaxially fixed on the top surface of the turntable (251) and rotatably connected to the fixed plate (2410), an active rotating gear (2510) and a driven rotating gear (2511) located between the turntable (251) and the fixed plate (2410) and meshing with each other, and a connecting column (259) coaxially connected to the output shaft of the rotary motor (258). The driven rotating gear (2511) is coaxially fixed on the outer circumference of the rotating roller (252), and the active rotating gear (2510) is coaxially fixed on the outer circumference of the connecting column (259).

7. The lightweight door anti-collision beam inspection fixture structure according to claim 1, characterized in that: The two L-shaped plates (253) are symmetrical to each other. The cylinder body of the electric cylinder (254) is installed on the bottom surface of the turntable (251) near the edge. The piston rod of the electric cylinder (254) passes through the top surface of the turntable (251) and extends to the bottom of the turntable (251). The horizontal plate end of the L-shaped plate (253) is fixed on the bottom surface of the piston rod of the electric cylinder (254) on the same side.

8. The lightweight door anti-collision beam inspection fixture structure according to claim 1, characterized in that: The angle adjustment assembly (25) also includes two flip rollers (255) that are rotatably connected to the vertical ends of the two L-shaped plates (253) respectively, and two connecting rods (256) fixed on the side surface of the flip roller (255) away from the vertical end of the L-shaped plate (253) on the same side. The mounting plate (21) is fixed on the bottom surface of the connecting rod (256) on the same side. The output shaft of the flip motor (257) is coaxially connected to the flip roller (255) on the same side. The dial indicator body (22) and the go / no-go gauge body (23) are both fixedly connected to the mounting plate (21) on the same side by several screws.

9. The lightweight door anti-collision beam inspection fixture structure according to claim 1, characterized in that: The bottom surface of the base plate (11) is fixed with an anti-slip plate (12) that is adapted to its shape. The thickness of the anti-slip plate (12) is 1cm-2cm, and the bottom surface of the anti-slip plate (12) is provided with anti-slip texture.

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