A rear door guide groove assembly gauge

Abstract

The utility model discloses a rear door guide groove assembly gauge relates to automobile gauge technical field, and the utility model discloses a test bench, gauge frame, main frame, drive arrangement, upper guide groove, lower guide groove, X type lifting frame and detection mechanism. X type lifting frame is slidably connected between upper and lower guide grooves through the pivot and runner, and drive arrangement drives its up and down movement, and the actual motion track of simulation guide groove assembly. Detection mechanism sets up on the both sides of X type lifting frame, and includes fixed plate, telescopic link, boss, pivot and pressure detection roller, is used for gathering the pressure distribution and levelness data in guide groove sliding process. Detection mechanism carries out data processing and analysis through controller, realizes the real -time judgment to guide groove assembly assembly accuracy. The gauge still includes the fixed frame with rotating handle and gear transmission structure and the limiting structure that spacing block and connecting platform cooperation, realizes the flexible adjustment and positioning of detection component angle.

Description

Technical Field

[0001] This utility model belongs to the field of automotive inspection tool technology, and in particular relates to an inspection tool for a rear door guide groove assembly. Background Technology

[0002] Currently, the rear door guide channel assembly is a key component in the automotive body structure, and its assembly accuracy directly affects the door's opening and closing performance, sealing performance, and overall vehicle assembly quality. To ensure the dimensional accuracy and motion performance of the rear door guide channel during the production process, the industry commonly uses specialized inspection tools for its testing. These tools simulate the installation state and motion trajectory of the guide channel on the vehicle to achieve a comprehensive evaluation of its sliding performance, guiding accuracy, and assembly consistency.

[0003] Existing rear door guide groove inspection fixtures mostly adopt fixed or semi-automatic structures, and some equipment already has functions such as lifting and sliding detection, which can meet basic inspection requirements. Some fixtures use guide grooves and sliding mechanisms in conjunction with pressure sensors or displacement measuring devices to detect key parameters such as guide groove sliding resistance and guiding accuracy. With the continuous improvement of precision requirements in automobile manufacturing, the fixtures have also been continuously optimized in terms of structural stability, inspection repeatability, and ease of operation.

[0004] However, in practical applications, problems still exist, such as insufficient flexibility in adjusting the detection angle, incomplete data collection, and a need to improve automation. Especially when dealing with differences in guide groove structures across different vehicle models, further improving the versatility of the inspection fixture, enhancing the adaptability of the inspection system, and achieving high efficiency and intelligence in the inspection process have become important directions for current technological improvements. Utility Model Content

[0005] The purpose of this utility model is to provide a rear door guide groove assembly inspection fixture. Through the linkage between the X-shaped lifting frame and the inspection mechanism, as well as the adjustment between the fixed frame and the gear transmission structure, it solves the problems of inconvenient inspection angle adjustment, incomplete inspection data collection, and insufficient equipment versatility in the prior art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model is a rear door guide groove assembly inspection tool and test bench; A fixture frame is connected to the upper end of the test bench by bolts and threads; The main frame is connected to the upper end of the fixture frame by bolts and threads; A drive unit, which is connected to the side end of the main frame; The lower guide groove is connected to the upper end of the fixture frame by bolt thread; Upper guide groove, the upper guide groove being connected to the side end of the inspection frame; An X-shaped lifting frame, wherein the X-shaped lifting frame is slidably connected between the upper guide groove and the lower guide groove via a rotating shaft and a rotating wheel; and The detection mechanism consists of two sets, which are respectively located on the upper and lower sides of the X-shaped lifting frame and are respectively matched with the upper guide groove and the lower guide groove.

[0008] The present invention is further configured such that each group of detection mechanisms includes a fixed plate, a telescopic rod, a boss, and a detection component. The fixed plate is rotatably connected to the upper and lower ends of the X-shaped lifting frame via a rotating shaft. The telescopic rod is fixedly connected to the side end of the fixed plate. The boss is slidably sleeved and connected to the output end of the telescopic rod. The spring is sleeved and connected to the output end of the telescopic rod. The rotating rod is rotatably connected to the side end of the boss. The detection component is disposed on the side end of the boss and is used to detect the levelness of the upper guide groove and the lower guide groove.

[0009] The present invention is further configured such that the detection component includes a rotating rod, a pressure detection roller and a controller. The rotating rod is rotatably connected to the side end of the boss, the pressure detection roller is fixedly connected to the circumferential surface of the rotating rod, the controller is fixedly connected to the upper end of the test platform, the two sets of detection mechanisms are respectively connected to the controller, and the pressure detection roller is respectively engaged with the upper guide groove and the lower guide groove.

[0010] The present invention is further configured such that an L-shaped plate is fixedly connected to the side end of the test platform, a fixing frame is connected to the side end of the L-shaped plate, the fixing frame and the L-shaped plate are rotatably connected by a rotating shaft, and a rectangular frame is fixedly connected to the lower end of the fixing frame.

[0011] The present invention is further configured such that a first gear and a second gear are rotatably connected to the side end of the fixing frame via a rotating shaft, a rotating handle is fixedly connected to the side end of the second gear, the first gear meshes with the second gear, and the first gear is rotatably connected to the L-shaped plate via a rotating shaft.

[0012] The present invention is further configured such that a limiting block is fixedly connected to the side end of the test platform, and a connecting platform is fixedly connected to the upper end of the rectangular frame, the connecting platform being matched with the limiting block.

[0013] The present invention is further configured such that a support column is fixedly connected to the upper end of the test platform, a hook is fixedly connected to the upper end of the support column, and a caster wheel and a hydraulic cylinder are fixedly connected to the lower end of the test platform.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model achieves dynamic detection of the sliding performance, guiding accuracy, and pressure distribution of the rear door guide groove assembly by setting up an X-shaped lifting frame and a detection mechanism, combined with the data acquisition function of the pressure detection roller and the controller. In this way, the assembly status of the guide groove can be accurately fed back, improving the accuracy and repeatability of the detection data, and meeting the high standard requirements for assembly accuracy in automobile manufacturing.

[0016] 2. This utility model, through the cooperation of the fixed frame and gear transmission structure, combined with the limiting design of the limiting block and the connecting table, enables the detection component to have multi-angle adjustment capability, adapting to the detection requirements of guide groove structures of different vehicle models; thus, the detection of various guide groove assemblies can be completed without changing the main body of the inspection fixture, improving the applicability and ease of operation of the equipment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 A perspective view of a rear door guide groove assembly inspection fixture; Figure 2 An exploded view of a rear door guide groove assembly inspection fixture; Figure 3 A rear door guide groove assembly inspection tool Figure 2 Exploded view of the central test platform; Figure 4 A rear door guide groove assembly inspection tool Figure 3 Enlarged view of the central fixing plate.

[0019] In the attached diagram: 1. Test bench; 2. Inspection frame; 3. Controller; 4. Main frame; 5. Drive unit; 6. X-shaped lifting frame; 7. Upper guide groove; 8. Lower guide groove; 9. Fixing plate; 10. Telescopic rod; 11. Boss; 12. Rotating rod; 13. Pressure detection roller; 14. Spring; 15. L-shaped plate; 16. Fixing frame; 17. First gear; 18. Second gear; 19. Rotating handle; 20. Limiting block; 21. Rectangular frame; 22. Connecting platform; 23. Support column; 24. Hook; 25. Caster wheel; 26. Hydraulic cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0021] Please see Figure 1-4 The present invention provides the following technical solution: A rear door guide groove assembly inspection tool, comprising: Test bench 1; Inspection frame 2 is connected to the upper end of test bench 1 by bolts and threads; Main frame 4 is connected to the upper end of fixture frame 2 by bolts and threads; Drive unit 5 is connected to the side end of the main frame 4; The lower guide groove 8 is connected to the upper end of the inspection frame 2 by bolt thread; Upper guide groove 7 is connected to the side end of the inspection frame 2; X-shaped lifting frame 6, the X-shaped lifting frame 6 is slidably connected between the upper guide groove 7 and the lower guide groove 8 via a rotating shaft and a rotating wheel; and The testing mechanism consists of two sets, which are respectively located on the upper and lower sides of the X-shaped lifting frame 6 and are matched with the upper guide groove 7 and the lower guide groove 8 respectively.

[0022] In a specific embodiment of this utility model, when the rear door guide groove assembly needs to be tested, the guide groove assembly to be tested is placed on the test bench 1, and the inspection frame 2 is fixedly connected to the upper end of the test bench 1 by bolts. Then, the main frame 4 is installed on top of the inspection frame 2 by bolts. In this way, a stable support foundation is provided for the entire testing system.

[0023] When the drive unit 5 is started, it drives the X-shaped lifting frame 6 to slide and rise between the upper guide groove 7 and the lower guide groove 8. The X-shaped lifting frame moves smoothly in the guide groove through the rotating shaft and the rotating wheel. In this way, the motion trajectory of the guide groove assembly in actual use is simulated, ensuring the accuracy and reliability of the test results.

[0024] When the detection mechanism moves up and down with the X-shaped lifting frame 6, the detection mechanisms located on its upper and lower sides cooperate with the upper guide groove 7 and the lower guide groove 8 to detect the sliding performance, pressure distribution and levelness of the guide groove in real time through the linkage of the telescopic rod 10, the boss 11 and the pressure detection roller 13; in this way, the assembly quality and operating status of the guide groove assembly can be accurately fed back.

[0025] Once the inspection is complete, the controller 3 will analyze and process the collected data and determine whether it meets the standard requirements. In this way, after the inspection process is over, the operator can quickly obtain the inspection results, which will facilitate timely adjustment of the assembly process or rework.

[0026] In this way, through the coordinated operation of the test bench 1, the inspection frame 2, the X-shaped lifting frame 6 and the testing mechanism, efficient, accurate and automated testing of the rear door guide groove assembly is achieved, improving testing efficiency and product quality control level.

[0027] Please refer to the details. Figure 1-4Each detection mechanism includes a fixed plate 9, a telescopic rod 10, a boss 11, and a detection component. The fixed plate 9 is rotatably connected to the upper and lower ends of the X-shaped lifting frame 6 via a rotating shaft. The telescopic rod 10 is fixedly connected to the side end of the fixed plate 9. The boss 11 is slidably sleeved and connected to the output end of the telescopic rod 10. The spring 14 is sleeved and connected to the output end of the telescopic rod 10. The rotating rod 12 is rotatably connected to the side end of the boss 11. The detection component is set on the side end of the boss 11 and is used to detect the levelness of the upper guide groove 7 and the lower guide groove 8.

[0028] In this embodiment: when the detection mechanism moves up and down with the X-shaped lifting frame 6, the fixing plate 9 is rotatably connected to the upper and lower ends of the X-shaped lifting frame 6 through the rotating shaft, so that the entire detection mechanism has a certain angle adjustment capability; in this way, it is easy to adapt to guide groove structures of different angles and heights, and improve the flexibility and applicability of the detection.

[0029] When the telescopic rod 10 is fixedly connected to the side end of the fixed plate 9 and changes displacement during the detection process, the boss 11 is slidably sleeved on its output end and automatically resets and buffers pressure under the action of the spring 14; in this way, it ensures that the detection component maintains stable pressure when contacting the guide groove, and avoids measurement errors or equipment damage caused by rigid contact.

[0030] When the rotating rod 12 is rotatably connected to the side end of the boss 11 and drives the detection component, including the pressure detection roller 13, to contact the upper guide groove 7 or the lower guide groove 8, the pressure distribution and levelness data of the guide groove running surface can be collected in real time; in this way, the assembly accuracy and sliding performance of the guide groove assembly can be accurately reflected.

[0031] Please refer to the details. Figure 1-4 The detection assembly includes a rotating rod 12, a pressure detection roller 13, and a controller 3. The rotating rod 12 is rotatably connected to the side end of the boss 11. The pressure detection roller 13 is fixedly connected to the circumferential surface of the rotating rod 12. The controller 3 is fixedly connected to the upper end of the test bench 1. The two sets of detection mechanisms are respectively connected to the controller 3. The pressure detection roller 13 is respectively engaged with the upper guide groove 7 and the lower guide groove 8.

[0032] In this embodiment: when the rotating rod 12 in the detection assembly is rotatably connected to the side end of the boss 11, the pressure detection roller 13 is fixedly connected to the circumferential surface of the rotating rod 12 and rotates synchronously with it; in this way, the pressure detection roller can be rolled against the inner wall of the upper guide groove 7 or the lower guide groove 8 for rolling detection, and the pressure data of the sliding surface of the guide groove can be collected in real time.

[0033] When the pressure detection roller 13 contacts the guide groove and moves up and down with the X-shaped lifting frame 6, the pressure change signal it detects is transmitted to the controller 3 through the line. The controller 3 compares and analyzes the data collected by the two sets of detection mechanisms. In this way, the parallelism, pressure distribution uniformity and assembly accuracy between the upper and lower guide grooves of the guide groove assembly can be accurately determined.

[0034] When the controller 3 detects abnormal pressure or level deviation exceeding the set range, it automatically issues an alarm. This allows operators to adjust the gauges or provide feedback to the assembly process in a timely manner, improving inspection efficiency and quality control.

[0035] Please refer to the details. Figure 1-4 An L-shaped plate 15 is fixedly connected to the side of the test bench 1. A fixing frame 16 is connected to the side of the L-shaped plate 15. The fixing frame 16 and the L-shaped plate 15 are rotatably connected by a rotating shaft. A rectangular frame 21 is fixedly connected to the lower end of the fixing frame 16.

[0036] In this embodiment: when an L-shaped plate 15 is fixedly connected to the side of the test bench 1 and is rotatably connected to the fixed frame 16 through a rotating shaft, the fixed frame 16 can be rotated and adjusted around the rotating shaft at a certain angle; in this way, it is convenient to adjust the spatial position of the rectangular frame 21 and its connecting parts according to the testing requirements, thereby improving the adaptability and ease of operation of the inspection tool.

[0037] When the lower end of the fixing frame 16 is fixedly connected to the rectangular frame 21, the structure provides an additional support base for the inspection mechanism and can be adjusted in angle along with the fixing frame; in this way, the inspection component can be adapted to the rear door guide groove assembly with different structural forms or installation angles, thereby enhancing the versatility of the inspection tool and the inspection coverage.

[0038] When the gauge needs to be stored or maintained, the rectangular frame 21 and connecting parts can be flipped to an easy-to-operate position by rotating the fixing bracket 16; this improves the flexibility of equipment use and the convenience of maintenance.

[0039] Please refer to the details. Figure 1-4 The side end of the fixed frame 16 is rotatably connected to the first gear 17 and the second gear 18 via a rotating shaft. The side end of the second gear 18 is fixedly connected to the rotating handle 19. The first gear 17 meshes with the second gear 18. The first gear 17 is rotatably connected to the L-shaped plate 15 via a rotating shaft.

[0040] In this embodiment: when the side end of the fixed frame 16 is rotatably connected to the first gear 17 and the second gear 18 via a rotating shaft, and the side end of the second gear 18 is fixedly connected to a rotating handle 19, the operator can rotate the rotating handle 19 to drive the second gear 18 to rotate; in this way, through gear meshing transmission, the first gear 17 rotates synchronously, thereby driving the fixed frame 16 to swing around the rotating shaft connecting it to the L-shaped plate 15.

[0041] When the first gear 17 and the L-shaped plate 15 are stably connected through a rotating shaft, the gear transmission structure can precisely control the rotation angle of the fixed frame 16 and its lower rectangular frame 21; in this way, the detection component can be precisely adjusted in space to meet the detection requirements of guide grooves at different angles.

[0042] When the handle 19 is rotated to a specific angle, the fixing bracket 16 can be locked in the required position, which facilitates the testing mechanism to stably carry out the testing operation of the rear door guide groove assembly; thus, the stability of the inspection tool operation and the accuracy of the test data are improved.

[0043] Please refer to the details. Figure 1-4 The side end of the test bench 1 is fixedly connected to a limiting block 20, and the upper end of the rectangular frame 21 is fixedly connected to a connecting platform 22, which matches the limiting block 20.

[0044] In this embodiment: when the side end of the test platform 1 is fixedly connected to the limiting block 20 and the upper end of the rectangular frame 21 is fixedly connected to the connecting platform 22, the connecting platform 22 can form a limiting engagement structure with the limiting block 20; in this way, when the fixed frame 16 drives the rectangular frame 21 to rotate, the angle position can be limited when the connecting platform 22 contacts the limiting block 20, preventing the structure from shifting or being damaged due to excessive rotation.

[0045] When the operator adjusts the angle of the fixed frame 16 by turning the handle 19, the matching relationship between the limit block 20 and the connecting platform 22 provides reliable end-point identification for the detection component; in this way, not only is the operational safety improved, but the consistency and repeatability of the structural position during the detection process are also ensured.

[0046] After the angle adjustment is completed, the connecting platform 22 is stably abutted against the limiting block 20, providing support and positioning reference for the rectangular frame 21 and the detection mechanism; thus, the stability and measurement accuracy of the detection system are further enhanced.

[0047] Please refer to the details. Figure 1-4 The upper end of the test bench 1 is fixedly connected to a support column 23, the upper end of the support column 23 is fixedly connected to a hook 24, and the lower end of the test bench 1 is fixedly connected to a caster wheel 25 and a hydraulic cylinder 26.

[0048] In this embodiment: when the upper end of the test bench 1 is fixedly connected to the support column 23, and the upper end of the support column 23 is provided with a hook 24, the hook can be used to suspend the testing auxiliary equipment or connect the hoisting tool, which facilitates the overall transportation and positioning of the inspection tool; thus, the flexibility of the equipment in the workshop or production line is improved.

[0049] When the lower end of the test bench 1 is fixedly connected with casters 25, the entire fixture can be moved flexibly by the casters; this makes it easy to quickly adjust the position of the equipment according to the testing requirements, improving the ease of operation and space adaptability.

[0050] When the hydraulic cylinder 26 is fixedly connected to the lower end of the test bench 1 and connected to an external hydraulic system, the test bench 1 can be adjusted in height by hydraulic drive; in this way, it can adapt to different testing environments or be highly matched with automated assembly lines, thereby improving the applicability and automation integration capabilities of the inspection tool.

[0051] The working principle of this utility model is as follows: Before use, ensure that the entire inspection fixture is in a stable state. The test platform 1 is moved to a suitable position by the casters 25, and the height of the test platform 1 is adjusted by the hydraulic cylinder 26 to adapt to the inspection requirements of different models of rear door guide groove assemblies. When the inspection operation begins, the rear door guide groove assembly to be tested is placed on the test platform 1, and the inspection fixture frame 2 is fixedly connected to the upper end of the test platform 1 by bolts. The main frame 4 is installed above the inspection fixture frame 2. The drive device 5 is started, driving the X-shaped lifting frame 6 to slide and rise between the upper guide groove 7 and the lower guide groove 8. In this way, the motion trajectory of the guide groove assembly during actual use is simulated. When the X-shaped lifting frame 6 moves up and down, the inspection mechanism moves synchronously with it. The telescopic rod 10 in the inspection mechanism drives the boss 11 to move, and the pressure detection roller 13 contacts the inner wall of the guide groove to collect sliding pressure and levelness data. In this way, the controller 3... Real-time analysis of test results determines whether the guide groove assembly meets assembly accuracy requirements. When the angle of the testing components needs to be adjusted to adapt to guide grooves with different structures, the operator rotates the handle 19, which drives the fixed frame 16 to swing through the first gear 17 and the second gear 18. The rectangular frame 21 and the testing components adjust their angles accordingly, and the connecting table 22 cooperates with the limiting block 20 to achieve angle limiting. This ensures the stability and accuracy of the testing process. After the test is completed, the drive device 5 is turned off, the inspection frame 2 and the main frame 4 are disassembled, and the tested guide groove assembly is removed. This completes a full testing process, facilitating the next round of testing. Thus, through the coordinated operation of components such as the test table 1, the X-shaped lifting frame 6, the testing mechanism, and the controller 3, efficient, accurate, and automated testing of the rear door guide groove assembly is achieved, improving testing efficiency and product quality control.

[0052] It is worth mentioning that: Controller 3 is a general-purpose industrial control device, typically a programmable logic controller (PLC) or an embedded control system, used to collect sensor signals, control the actions of actuators, and perform data processing. It is widely used in automated inspection equipment and automotive manufacturing fixture systems, possessing functions such as data acquisition, logical judgment, and alarm output to improve inspection accuracy and automation levels. The main frame 4 serves as a support structure, supporting the drive unit, guide rail assembly, and inspection mechanism. Its structural form is common in various fixtures and jigs, usually employing metal welding or bolted connections, providing sufficient rigidity and stability to ensure structural safety and accuracy during the inspection process. The drive unit 5 is typically a motor drive system, including servo motors, stepper motors, or pneumatic / hydraulic drive units, working in conjunction with a transmission mechanism to achieve mechanical actions such as lifting, rotating, and sliding within the fixture. This type of device is a standard configuration in automated equipment and is widely used in various inspection and assembly equipment. The X-type lifting frame 6 is a common mechanical lifting structure, achieving lifting functionality through cross linkages and sliding guide rails, featuring structural stability, smooth lifting, and strong load-bearing capacity. This structure is widely used in lifting platforms, inspection equipment, and automotive repair equipment, and is a mature mechanical transmission structure. The pressure detection roller 13 is a roller structure integrating a pressure sensor, used to detect the pressure distribution on the contact surface during movement. Its technical principle combines rolling bearings and pressure sensing technology, and it has mature applications in automotive door system inspection, track inspection, and automated assembly, used to evaluate sliding performance and assembly quality. In summary, the aforementioned component controller, main frame, drive device, X-type lifting frame, and pressure detection roller are all mature functional modules in existing technologies. The innovation of this utility model lies in optimizing the structure and integrating the functions of these existing components to form a dedicated inspection system suitable for efficient and accurate inspection of the rear door guide groove assembly, improving inspection efficiency and intelligence.

[0053] All standard parts used in this invention can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through the control unit. The control circuit of the control unit can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, the control method and circuit connection will not be explained in detail in this invention.

[0054] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A rear door guide groove assembly inspection fixture, characterized in that, include: Test stand (1); Inspection frame (2), the inspection frame (2) is connected to the upper end of the test bench (1) by bolt thread; The main frame (4) is connected to the upper end of the inspection frame (2) by bolts and threads; A drive device (5) is connected to the side end of the main frame (4); The lower guide groove (8) is connected to the upper end of the inspection frame (2) by bolt thread; Upper guide groove (7), the upper guide groove (7) is connected to the side end of the inspection frame (2); X-shaped lifting frame (6), wherein the X-shaped lifting frame (6) is slidably connected between the upper guide groove (7) and the lower guide groove (8) via a rotating shaft and a rotating wheel; and The testing mechanism is provided in two sets, which are respectively set on the upper and lower sides of the X-shaped lifting frame (6) and respectively matched with the upper guide groove (7) and the lower guide groove (8).

2. The rear door guide groove assembly inspection fixture according to claim 1, characterized in that: Each of the detection mechanisms includes a fixed plate (9), a telescopic rod (10), a boss (11), and a detection component. The fixed plate (9) is rotatably connected to the upper and lower ends of the X-shaped lifting frame (6) via a rotating shaft. The telescopic rod (10) is fixedly connected to the side end of the fixed plate (9). The boss (11) is slidably connected to the output end of the telescopic rod (10). A connecting spring (14) is sleeved on the output end of the telescopic rod (10).

3. The rear door guide groove assembly inspection fixture according to claim 2, characterized in that: The detection assembly includes a rotating rod (12), a pressure detection roller (13), and a controller (3). The rotating rod (12) is rotatably connected to the side end of the boss (11). The detection assembly is set on the side end of the boss (11) to realize the levelness detection of the upper guide groove (7) and the lower guide groove (8). The pressure detection roller (13) is fixedly connected to the circumferential surface of the rotating rod (12). The controller (3) is fixedly connected to the upper end of the test platform (1). The two sets of detection mechanisms are respectively connected to the controller (3). The pressure detection roller (13) cooperates with the upper guide groove (7) and the lower guide groove (8) respectively.

4. A rear door guide groove assembly inspection fixture according to claim 3, characterized in that: The test bench (1) is fixedly connected to an L-shaped plate (15) on its side. The L-shaped plate (15) is connected to a fixed frame (16) on its side. The fixed frame (16) and the L-shaped plate (15) are rotatably connected by a rotating shaft. The lower end of the fixed frame (16) is fixedly connected to a rectangular frame (21).

5. A rear door guide groove assembly inspection fixture according to claim 4, characterized in that: The side end of the fixed frame (16) is rotatably connected to a first gear (17) and a second gear (18) via a rotating shaft. The side end of the second gear (18) is fixedly connected to a rotating handle (19). The first gear (17) meshes with the second gear (18). The first gear (17) is rotatably connected to the L-shaped plate (15) via a rotating shaft.

6. A rear door guide groove assembly inspection fixture according to claim 5, characterized in that, The test bench (1) is fixedly connected to a limiting block (20) on its side, and a connecting platform (22) is fixedly connected to the upper end of the rectangular frame (21). The connecting platform (22) matches the limiting block (20).

7. A rear door guide groove assembly inspection fixture according to claim 6, characterized in that: The upper end of the test bench (1) is fixedly connected to a support column (23), the upper end of the support column (23) is fixedly connected to a hook (24), and the lower end of the test bench (1) is fixedly connected to a caster wheel (25) and a hydraulic cylinder (26).

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