Positioning structure of detector for automobile parts

By using a buffer assembly consisting of a hydraulic rod and a compression spring, along with an electric push rod linkage mechanism, the problem of component damage caused by rigid collisions in the testing equipment is solved, achieving flexible positioning and centering positioning, thus improving testing accuracy and efficiency.

CN224185252UActive Publication Date: 2026-05-01广州君华检测认证有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
广州君华检测认证有限公司
Filing Date
2025-05-30
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing automotive parts testing equipment often uses rigid collision methods during positioning, which can cause damage such as indentations and scratches on the surface of the parts, affecting the testing accuracy and appearance.

Method used

The buffer assembly, consisting of a hydraulic rod and a compression spring, uses the hydraulic rod to provide buffering force and the compression spring to provide elastic deformation, transforming rigid collisions into flexible contact. Combined with an electric push rod and a linkage mechanism, it achieves flexible positioning and centering positioning.

Benefits of technology

It avoids damage to the surface of parts, ensures detection accuracy and appearance quality, enables fast and accurate positioning and calibration, reduces manual intervention, and improves detection efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of auto spare part detection, and discloses a positioning structure of a detector for auto spare parts, which comprises a conveyor belt, the bottom of the conveyor belt is fixedly connected with a support frame, the bottom of the conveyor belt is provided with a centering assembly, the top of the conveyor belt is provided with a positioning plate, and the positioning plate is provided with a buffer assembly. And the top of the conveying belt is fixedly connected with a detector, the buffer assembly comprises a hydraulic rod, one end of the hydraulic rod is fixedly connected to the outer wall of the positioning plate, the other end of the hydraulic rod is fixedly connected with a buffer plate, and the outer wall of the positioning plate is fixedly connected with a first fixing block. In the utility model, the buffer plate is buffered through the hydraulic rod, and then the buffer plate is further buffered through the compression spring, so that when the positioning plate is quickly close to or clamps an automobile part, the damage such as indentation, scratch and the like on the surface of the part caused by direct collision and the indentation on the surface of the part caused by rigid contact are avoided; the subsequent appearance detection and the use performance are influenced.
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Description

A positioning structure for an automotive parts testing instrument Technical Field

[0001] This utility model relates to the field of automotive parts testing technology, and in particular to a positioning structure for an automotive parts testing instrument. Background Technology

[0002] In today's booming automotive industry, quality control of auto parts is of paramount importance. Auto parts testing equipment, as key devices for ensuring parts quality, is undeniably crucial. From the manufacturing process to subsequent maintenance and repair, testing equipment is indispensable for accurately inspecting various parts, thereby ensuring the overall stability and reliability of the vehicle's performance and protecting the safety of passengers.

[0003] In existing automotive parts testing technologies, numerous testing instruments employ diverse mechanical structures and technical principles. For example, some testing instruments for automotive electrical components utilize the principle of circuit continuity testing, connecting specific test probes to the pins of electrical components to determine whether there are problems such as open circuits or short circuits. In the testing of mechanical components, some testing instruments employ contact measurement mechanical structures, such as those using precision measuring tools like micrometers, where a movable measuring head directly contacts the surface of the component to measure its dimensional parameters. Other testing instruments utilize optical imaging technology, capturing images of the component with a camera and then using image analysis algorithms to detect surface defects or shape deviations, thereby achieving the testing of the components.

[0004] However, existing testing technologies have significant drawbacks in practical operation. When performing positioning testing on automotive parts, traditional testing equipment typically employs a rigid positioning method. This means the positioning component directly contacts and fixes itself to the part. During the positioning process, if the positioning speed is high or the part itself has a certain positional deviation, the positioning component will directly collide rigidly with the part. This rigid collision easily leads to damage such as indentations and scratches on the part's surface. Therefore, a positioning structure for an automotive parts testing instrument is proposed to address these problems. Summary of the Invention

[0005] To overcome the above deficiencies, this utility model provides a positioning structure for an automotive parts testing instrument, which aims to improve the problem that the existing technology cannot buffer automotive parts during positioning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A positioning structure for an automotive parts testing instrument includes a conveyor belt, a support frame fixedly connected to the bottom of the conveyor belt, a centering component provided at the bottom of the conveyor belt, a positioning plate provided at the top of the conveyor belt, a buffer component provided on the positioning plate, and a testing instrument fixedly connected to the top of the conveyor belt.

[0008] The buffer assembly includes a hydraulic rod, one end of which is fixedly connected to the outer wall of the positioning plate, and the other end of which is fixedly connected to a buffer plate. A fixing block is fixedly connected to the outer wall of the positioning plate, and a connecting rod is fixedly connected to the outer wall of the fixing block. Two sliding blocks are slidably connected to the outer wall of the connecting rod. A compression spring is sleeved on the outer wall of the connecting rod. One end of the compression spring is fixedly connected to the outer wall of one of the sliding blocks, and the other end of the compression spring is fixedly connected to the outer wall of the other sliding block. A transmission assembly is provided on the outer wall of the sliding block.

[0009] As a further description of the above technical solution:

[0010] The transmission assembly includes a connecting frame one, the outer wall of the connecting frame one is fixedly connected to the outer wall of the sliding block, the inner wall of the connecting frame one is fixedly connected to a rotating column one, the outer wall of the rotating column one is rotatably connected to a connecting arm one, the inner wall of the connecting arm one is rotatably connected to a rotating column two, the outer wall of the rotating column two is fixedly connected to a connecting frame two, and the outer wall of the connecting frame two is fixedly connected to the outer wall of the buffer plate.

[0011] As a further description of the above technical solution:

[0012] The centering component includes two movable frames, both of which are located at the bottom of the conveyor belt. A second fixed block is fixedly connected to the bottom of the conveyor belt, and a platform is fixedly connected to the other end of the second fixed block.

[0013] As a further description of the above technical solution:

[0014] An electric push rod is fixedly connected to the top of the tabletop, and a connecting block is fixedly connected to the output end of the electric push rod. The outer wall of the connecting block is fixedly connected to the outer wall of the movable frame.

[0015] As a further description of the above technical solution:

[0016] The bottom of the tabletop is fixedly connected to a slide rail, the inner wall of the movable frame is slidably connected to the outer wall of the slide rail, the bottom of the tabletop is fixedly connected to a fixed column, and the outer wall of the fixed column is rotatably connected to a rotating plate.

[0017] As a further description of the above technical solution:

[0018] A rotating rod is fixedly connected to the outer wall of the rotating plate, and a connecting arm is rotatably connected to the inner wall of the rotating rod. A rotating rod is rotatably connected to the inner wall of the connecting arm.

[0019] As a further description of the above technical solution:

[0020] The top of the rotating rod is fixedly connected to the bottom of the movable frame, and the outer wall of the movable frame is fixedly connected to the connecting block.

[0021] As a further description of the above technical solution:

[0022] The other end of the connecting block is fixedly connected to a bracket, and a push rod is fixedly connected to the outer wall of the bracket. The other end of the push rod is fixedly connected to the outer wall of the positioning plate.

[0023] This utility model has the following beneficial effects:

[0024] In this invention, the movement of the positioning plate drives the hydraulic rod to move, and then the sliding block slides on the outer wall of the connecting rod to compress the compression spring, thereby achieving a buffering effect when positioning automotive parts. This avoids direct collision when the positioning plate quickly approaches or clamps the automotive parts, which would cause damage such as indentations and scratches on the surface of the parts. Rigid contact would cause dents on the surface, affecting subsequent appearance inspection and performance. Thus, rigid collision is transformed into flexible contact, avoiding surface damage and structural destruction.

[0025] In this invention, an electric push rod drives the moving frame to move, and then a bracket drives the push rod to move, achieving the effect of centering the automotive parts. This avoids the left-right, front-back, or angular deviation of automotive parts when transported on the conveyor belt. Without a centering positioning mechanism, each part would be placed in a different position, and the testing equipment would need to spend extra time to identify and calibrate the position of each part, and even require frequent manual adjustments. This allows the parts to enter the testing instrument quickly and accurately without manual intervention or a complicated calibration process, and also ensures that the parts are always in a safe position during the testing process, avoiding collisions with the testing equipment. Attached Figure Description

[0026] Figure 1 is a three-dimensional schematic diagram of the positioning structure of an automotive parts testing instrument proposed in this utility model;

[0027] Figure 2 is a schematic diagram of the platform of the positioning structure of the automotive parts testing instrument proposed in this utility model;

[0028] Figure 3 is an enlarged view of point A in Figure 2;

[0029] Figure 4 is a schematic diagram of the connecting rod of the positioning structure of an automotive parts testing instrument proposed in this utility model;

[0030] Figure 5 is an enlarged view of point B in Figure 4;

[0031] Figure 6 is a schematic diagram of the rotating plate of the positioning structure of an automotive parts testing instrument proposed in this utility model.

[0032] Legend:

[0033] 1. Conveyor belt; 2. Support frame; 3. Detector; 4. Positioning plate; 5. Buffer plate; 6. Hydraulic rod; 7. Fixed block one; 8. Connecting rod; 9. Sliding block; 10. Compression spring; 11. Connecting frame one; 12. Rotating column one; 13. Connecting arm one; 14. Rotating column two; 15. Connecting frame two; 16. Fixed block two; 17. Table; 18. Electric push rod; 19. Connecting block one; 20. Moving frame; 21. Slide rail; 22. Fixed column; 23. Rotating plate; 24. Rotating rod one; 25. Connecting arm two; 26. Rotating rod two; 27. Connecting block two; 28. Bracket; 29. ​​Push rod. Detailed Implementation

[0034] 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.

[0035] Referring to Figures 1-5, one embodiment of this utility model provides a positioning structure for an automotive parts testing instrument, including a conveyor belt 1. The conveyor belt 1 serves as a parts transport carrier, carrying and transporting automotive parts smoothly from the starting position to the testing instrument 3, achieving automated transport. A support frame 2 is fixedly connected to the bottom of the conveyor belt 1, providing stable support and ensuring the conveyor belt 1 remains horizontal and stable during operation, preventing shaking from affecting the accuracy of parts transport. A centering component is provided at the bottom of the conveyor belt 1, and a positioning plate 4 is provided at the top of the conveyor belt 1. The positioning plate 4 is responsible for accurately positioning and fixing the parts when they arrive at the testing position. A buffer component is provided on the positioning plate 4. The testing instrument 3 is fixedly connected to the top of the conveyor belt 1. The testing instrument 3 is used to detect parameters such as the size, shape, and surface defects of automotive parts. Through optical imaging and data analysis technology, various parameters of the parts are quickly obtained, which is common knowledge and will not be elaborated further here. The buffer component includes a hydraulic rod 6, one end of which is fixedly connected to the outer wall of the positioning plate 4. A buffer plate 5 is fixedly connected to the other end of the rod 6. The hydraulic rod 6, in conjunction with the buffer plate 5, provides buffering force when approaching the part. Through the flow and damping effect of hydraulic oil, the moving speed of the positioning plate 4 is reduced, avoiding rigid impact on the part and protecting the surface of the part from scratches. A fixing block 7 is fixedly connected to the outer wall of the positioning plate 4. A connecting rod 8 is fixedly connected to the outer wall of the fixing block 7. Two sliding blocks 9 are slidably connected to the outer wall of the connecting rod 8. The connecting rod 8 is used to provide a sliding track for the sliding blocks 9, ensuring that the sliding blocks 9 can slide smoothly in a straight line when subjected to force. A compression spring 10 is sleeved on the outer wall of the connecting rod 8. One end of the compression spring 10 is fixedly connected to the outer wall of one sliding block 9, and the other end of the compression spring 10 is fixedly connected to the outer wall of the other sliding block 9. A transmission component is provided on the outer wall of the sliding block 9 to generate elastic deformation when the sliding block 9 slides, absorbing and buffering external force. When the buffer plate 5 quickly approaches the part, the sliding block 9 slides on the outer wall of the connecting rod 8, compressing the compression spring 10, thereby converting rigid collision into flexible contact, achieving the buffering effect when positioning automotive parts.

[0036] Referring to Figures 1-6, the transmission assembly includes a connecting frame 11. The outer wall of the connecting frame 11 is fixedly connected to the outer wall of the sliding block 9. A rotating column 12 is fixedly connected to the inner wall of the connecting frame 11. A connecting arm 13 is rotatably connected to the outer wall of the rotating column 12. A rotating column 24 is rotatably connected to the inner wall of the connecting arm 13. A connecting frame 25 is fixedly connected to the outer wall of the rotating column 24. The outer wall of the connecting frame 25 is fixedly connected to the outer wall of the buffer plate 5. The connecting arm 13 moves in coordination with the rotating column 12 and the rotating column 24. When the buffer plate 5 contacts the accessory, the buffer plate 5 then drives the connecting frame 25 to move in a direction. The connecting frame 25 drives the rotating column 24, the connecting arm 13, the rotating column 24, and the connecting frame 11 to move. The sliding block 9 compresses the compression spring 10, achieving a buffering effect when the buffer plate 5 is in contact with the surface of the accessory. The centering component includes two moving frames 20, both of which are located at the bottom of the conveyor belt 1. These frames are used to clamp and move the accessory to center it. A fixing block 2 16 is fixedly connected to the bottom of the conveyor belt 1. The fixing block 2 16 connects the conveyor belt 1 to the table 17 to ensure structural stability. The other end of the fixing block 2 16 is fixedly connected to the table 17. The table 17 is used to install components such as the electric push rod 18, providing a stable working platform. The top of the table 17 is fixedly connected to the electric push rod 18. The electric push rod 18 is a common electric linear actuator used to provide power to push the moving frame 20 to perform linear motion. This is common knowledge. Without going into too much detail, the output end of the electric push rod 18 is fixedly connected to a connecting block 19. The outer wall of the connecting block 19 is fixedly connected to the outer wall of a movable frame 20. The connecting block 19 is used to connect the electric push rod 18 and the movable frame 20, transmit the thrust, and ensure the stability of its movement. The bottom of the platform 17 is fixedly connected to a slide rail 21. The inner wall of the movable frame 20 is slidably connected to the outer wall of the slide rail 21. The slide rail 21 is a linear guide rail, used to provide sliding guidance for the movable frame 20, so that the movable frame 20 can move smoothly along a straight line. The bottom of the platform 17 is fixedly connected to a fixed column 22. The outer wall of the fixed column 22 is rotatably connected to a rotating plate 23. The outer wall of the rotating plate 23 is fixedly connected to a rotating rod 24. The inner wall of the rotating rod 24 is rotatably connected to a connecting arm 25. The inner wall of the connecting arm 25 is... A rotating rod 26 is rotatably connected, with its top fixedly connected to the bottom of the movable frame 20. A rotating plate 23 is rotatably connected to the outer wall of the fixed column 22. Together with the rotating rod 24, the connecting arm 25, and the rotating rod 26, they form a linkage mechanism. This linkage mechanism converts the linear motion of the electric push rod 18 into the parallel movement of the movable frame 20, ensuring that the two movable frames 20 move synchronously, thereby stably centering the accessory. A connecting block 27 is fixedly connected to the outer wall of the movable frame 20, and a bracket 28 is fixedly connected to the other end of the connecting block 27. A push rod 29 is fixedly connected to the outer wall of the bracket 28, and the other end of the push rod 29 is fixedly connected to the outer wall of the positioning plate 4. The connecting block 27 is used to fix the push rod 29, ensuring that the push rod 29 remains stable when pushing the accessory.When the electric push rod 18 moves the movable frame 20, it drives the push rod 29 to move via the bracket 28, thereby pushing the positioning plate 4 and achieving the effect of centering the automotive parts.

[0037] Working Principle: When positioning automotive parts, the positioning plate 4 first moves towards the part to be positioned. This movement of the positioning plate 4 drives the hydraulic rod 6, which in turn moves the fixing block 7. The fixing block 7 then moves the connecting rod 8, which in turn moves the sliding block 9. The sliding block 9 then moves the connecting frame 11, which in turn moves the rotating column 12 and connecting arm 13. The connecting arm 13 then moves the rotating column 14 and connecting frame 15. The movement of the connecting frame 15 positions the automotive part, and the automotive part then moves the connecting frame 15. The compression causes the connecting frame 2 15 to move in the opposite direction. Then, the movement of the connecting frame 2 15 causes the connecting frame 2 15 and the rotating column 2 14 to move. Then, the movement of the connecting frame 2 15 and the rotating column 2 14 causes the connecting arm 1 13 to move. Then, the movement of the connecting arm 1 13 causes the rotating column 1 12 and the connecting frame 1 11 to move. Then, the movement of the rotating column 1 12 and the connecting frame 1 11 causes the sliding block 9 to slide on the outer wall of the connecting rod 8. Then, the sliding block 9 compresses the compression spring 10. Then, the compression spring 10 achieves the effect of buffering the buffer plate 5 through compression and rebound, thereby avoiding the positioning plate 4 from directly colliding with the automotive parts when it quickly approaches or clamps them, which would cause damage such as indentations and scratches on the surface of the parts.

[0038] When positioning automotive parts, the process begins by driving an electric push rod 18, which in turn moves a connecting block 19 in parallel. This movement of the connecting block 19 then moves a moving frame 20, which in turn moves a rotating rod 26. The movement of the rotating rod 26 then moves a connecting arm 25, which in turn moves a rotating rod 24. Finally, the movement of the rotating rod 24 causes the rotating plate 23 to rotate on the outer wall of the fixed column 22. The rotation of the rotating plate 23 drives the rotating rod 24, connecting arm 25, rotating rod 26 and moving frame 20 on the other side to move. Then, the moving frame 20 slides on the outer wall of the slide rail 21 to drive the connecting block 27 to move. Then, the movement of the connecting block 27 drives the support 28 to move. Then, the movement of the support 28 drives the push rod 29 to move. Then, the movement of the push rod 29 drives the positioning plate 4 to move. This prevents the car parts from shifting left, right, front, back or angle when they are transported on the conveyor belt 1. Otherwise, the data obtained by the detector 3 will deviate from the true value.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A positioning structure for an automotive parts testing instrument, comprising a conveyor belt (1), characterized in that: The bottom of the conveyor belt (1) is fixedly connected to a support frame (2), the bottom of the conveyor belt (1) is provided with a centering component, the top of the conveyor belt (1) is provided with a positioning plate (4), the positioning plate (4) is provided with a buffer component, and the top of the conveyor belt (1) is fixedly connected to a detector (3); the buffer component includes a hydraulic rod (6), one end of the hydraulic rod (6) is fixedly connected to the outer wall of the positioning plate (4), the other end of the hydraulic rod (6) is fixedly connected to a buffer plate (5), the outer wall of the positioning plate (4) is fixedly connected to a fixing block (7), the outer wall of the fixing block (7) is fixedly connected to a connecting rod (8), the outer wall of the connecting rod (8) is slidably connected to two sliding blocks (9), the outer wall of the connecting rod (8) is sleeved with a compression spring (10), one end of the compression spring (10) is fixedly connected to the outer wall of one of the sliding blocks (9), the other end of the compression spring (10) is fixedly connected to the outer wall of another sliding block (9), and the outer wall of the sliding block (9) is provided with a transmission component.

2. The positioning structure of an automotive parts testing instrument according to claim 1, characterized in that: The transmission assembly includes a connecting frame one (11), the outer wall of the connecting frame one (11) is fixedly connected to the outer wall of the sliding block (9), the inner wall of the connecting frame one (11) is fixedly connected to a rotating column one (12), the outer wall of the rotating column one (12) is rotatably connected to a connecting arm one (13), the inner wall of the connecting arm one (13) is rotatably connected to a rotating column two (14), the outer wall of the rotating column two (14) is fixedly connected to a connecting frame two (15), and the outer wall of the connecting frame two (15) is fixedly connected to the outer wall of the buffer plate (5).

3. The positioning structure of an automotive parts testing instrument according to claim 2, characterized in that: The centering component includes two movable frames (20), both of which are located at the bottom of the conveyor belt (1). A fixed block (16) is fixedly connected to the bottom of the conveyor belt (1), and a table (17) is fixedly connected to the other end of the fixed block (16).

4. The positioning structure of an automotive parts testing instrument according to claim 3, characterized in that: An electric push rod (18) is fixedly connected to the top of the tabletop (17), and a connecting block (19) is fixedly connected to the output end of the electric push rod (18). The outer wall of the connecting block (19) is fixedly connected to the outer wall of the movable frame (20).

5. The positioning structure of an automotive parts testing instrument according to claim 4, characterized in that: The bottom of the tabletop (17) is fixedly connected to a slide rail (21), the inner wall of the movable frame (20) is slidably connected to the outer wall of the slide rail (21), the bottom of the tabletop (17) is fixedly connected to a fixed column (22), and the outer wall of the fixed column (22) is rotatably connected to a rotating plate (23).

6. The positioning structure of an automotive parts testing instrument according to claim 5, characterized in that: The outer wall of the rotating plate (23) is fixedly connected to a rotating rod (24), the inner wall of the rotating rod (24) is rotatably connected to a connecting arm (25), and the inner wall of the connecting arm (25) is rotatably connected to a rotating rod (26).

7. The positioning structure of an automotive parts testing instrument according to claim 6, characterized in that: The top of the rotating rod (26) is fixedly connected to the bottom of the movable frame (20), and the outer wall of the movable frame (20) is fixedly connected to the connecting block (27).

8. The positioning structure of an automotive parts testing instrument according to claim 7, characterized in that: The other end of the connecting block 2 (27) is fixedly connected to a bracket (28), and a push rod (29) is fixedly connected to the outer wall of the bracket (28). One end of the push rod (29) is fixedly connected to the outer wall of the positioning plate (4).