An automated inspection tool for tailgates with integrated hinge assembly

Abstract

This invention relates to the field of automotive tailgate inspection fixtures, specifically an automated tailgate inspection fixture integrating hinge assembly. It includes a mounting frame, on the upper surface of which are fixedly mounted two component positioning devices, two hinge positioning devices, several measuring devices, and a reference switching device. The tailgate is fixed to the fixture via a positioning system. The component positioning devices automatically measure the tailgate assembly dimensions, and the hinge positioning devices complete the hinge assembly. The reference switching device then switches to the measuring devices to complete the automatic measurement of the tailgate assembly dimensions with hinges. After measurement, the fixture determines whether the dimensional compliance rate meets the requirements based on the measurement results and outputs the measurement data. Real-time feedback is provided based on the measured dimensions of the assembled assembly, allowing for timely adjustment of the hinge assembly position to ensure dimensional conformity. If there is a need to investigate the dimensions of the tailgate assembly with hinges and locks, the fixture can switch to the component positioning devices to complete the measurement of the tailgate assembly dimensions with hinges and locks.

Description

Technical Field

[0001] This invention relates to the field of automotive tailgate inspection fixtures, specifically an automated tailgate inspection fixture with integrated hinge assembly. Background Technology

[0002] As an important assembly component of automotive exterior parts, the tailgate needs to be assembled with tailgate hinges using tooling to ensure its dimensional conformity and stability. After the hinge assembly is completed, the dimensions of the tailgate assembly around its perimeter need to be measured, the measurement results output, and the measurement data then judged to see if they meet the quality requirements.

[0003] The existing tailgate hinge assembly fixtures and assembly inspection tools are operated as two separate workstations. The operation process is complicated and the process of debugging the stability and compliance of the hinge assembly is lengthy, making it difficult to achieve synchronous feedback of debugging results. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides an automated inspection tool for tailgates with integrated hinge assembly.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an automated inspection tool for tailgate with integrated hinge assembly, including a mounting frame, on the upper surface of which two component positioning devices, two hinge positioning devices, several measuring devices and a reference switching device are fixedly installed.

[0006] Specifically, the two component positioning devices each include a first mounting base, a second mounting base, and a third mounting base. A first positioning block is fixedly mounted on the first mounting base, and a first positioning pin is fixedly mounted on the first positioning block. A first product positioning sensor is fixedly mounted on the first positioning block located on one side of the first positioning pin. A second positioning block is fixedly mounted on the second mounting base, and a second positioning pin is fixedly mounted on the second positioning block located on one side of the second positioning pin. A second product positioning sensor is fixedly mounted on the third mounting base. A first cylinder is fixedly mounted on the output end of the first cylinder. A positioning block sliding guide rail is fixedly connected to the output end of the first cylinder. A positioning block limiting pin is fixedly connected to the sliding guide rail. A third positioning block is fixedly connected to the end of the sliding guide rail away from the cylinder. A third product positioning sensor is fixedly connected to one side wall of the third positioning block.

[0007] Specifically, both hinge positioning devices include a second cylinder. A cylinder connecting rod is fixedly connected to the output end of the second cylinder. A hinge Y-positioning block is fixedly connected to the upper end of the cylinder connecting rod. A manual ball handle is fixedly connected to the upper end of the hinge Y-positioning block. A pressure head is fixedly connected to the lower end of the hinge Y-positioning block. A hinge Z-positioning block adjusting shim is fixedly installed on the outer wall of the second cylinder. A hinge Z-positioning block is fixedly installed on the hinge Z-positioning block adjusting shim. A hinge Y-direction adjusting shim is fixedly installed at the upper end of the hinge Z-positioning block. A hinge Y-positioning block is rotatably connected to the hinge Y-direction adjusting shim via a rotating shaft. A hinge detection sensor is provided on the hinge Z-positioning block. A sensor mounting bracket is fixedly installed at the lower end of the hinge detection sensor. An auxiliary positioning bracket is fixedly installed at the lower end of the sensor mounting bracket. A floating spring is fixedly connected to the upper surface of the auxiliary positioning bracket. A fourth mounting seat is fixedly installed at the upper end of the floating spring.

[0008] Specifically, each of the several measuring devices includes a simulated block base plate. A first sliding guide rail is fixedly installed on the upper surface of the simulated block base plate. A guide post is fixedly installed on the simulated block base plate on one side of the first sliding guide rail. A second sliding guide rail is fixedly installed on the simulated block base plate on one side of the guide post. A cylinder damper bracket is fixedly installed on the second sliding guide rail. A cylinder damper is fixedly installed on the cylinder damper bracket. A sliding motion cylinder is slidably connected to both the first and second sliding guide rails. The upper ends of the two sliding motion cylinders are jointly fixedly connected to a module. A simulated block mounting plate is provided. A simulated block mounting bracket is fixedly mounted on the upper surface of the simulated block mounting plate. A simulated block is fixedly mounted on the simulated block. A measuring sensor positioning bracket is fixedly mounted on the simulated block. A gap measuring sensor is fixedly mounted on the measuring sensor positioning bracket. A gap measuring head is fixedly mounted on the side wall of the measuring sensor positioning bracket away from the gap measuring sensor. A surface difference measuring head is fixedly mounted on the measuring sensor positioning bracket located above the gap measuring head. A surface difference measuring sensor is fixedly mounted on the upper surface of the measuring sensor positioning bracket.

[0009] Specifically, the reference switching device includes a mounting plate. A hinge for a fixture positioning reference is fixedly installed on one edge of the upper surface of the mounting plate. A hinge for an assembly positioning reference is fixedly installed on the mounting plate located on the side of the hinge for the fixture positioning reference. A mounting plate cylinder is fixedly installed on the lower surface of the mounting plate. A positioning reference limiting block sliding guide is fixedly installed on the mounting plate cylinder. A hinge for a fixture positioning reference limiting block and a hinge for an assembly positioning reference limiting block are slidably connected on the positioning reference limiting block sliding guide.

[0010] Specifically, a limiting pin guide sleeve is fixedly installed on the upper surface edge of one side of the simulation block mounting base plate. A limiting pin movement cylinder is fixedly installed on the limiting pin guide sleeve. The output end of the limiting pin movement cylinder extends through to the underside of the simulation block mounting base plate and is fixedly connected to a limiting block. A limiting pin is fixedly connected to the lower end of the limiting block.

[0011] Specifically, a zeroing block mounting base is fixedly installed on the positioning bracket of the measuring sensor, a zeroing block is provided on the zeroing block mounting base, and a zeroing block locking pin is fixedly installed on the zeroing block mounting base corresponding to the position of the zeroing block.

[0012] Specifically, a reference switching limit pin is inserted into the positioning reference limit block of the inspection fixture on the hinge. A reference limit pin switching cylinder is fixedly installed at the upper end of the reference switching limit pin, and the output end of the reference limit pin switching cylinder is connected to the reference switching limit pin.

[0013] The beneficial effects of this invention are:

[0014] This invention discloses an automated inspection fixture for tailgates with integrated hinge assembly. The tailgate is fixed to the fixture via a positioning system. A component positioning device automatically measures the tailgate assembly dimensions, followed by a hinge positioning device to assemble the hinges. After hinge assembly, a reference switching device switches to a measuring device for automatic measurement of the tailgate and hinge assembly dimensions. The measurement results determine if the dimensional compliance rate meets requirements and output measurement data. Real-time feedback based on the hinge assembly dimensions allows for timely adjustment of the hinge assembly position to ensure dimensional conformity. If there is a need to investigate the dimensions of the tailgate assembly with hinges and lock, the fixture can be switched to the component positioning device to measure the dimensions of the tailgate assembly with hinges and lock. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 A top view of an automated inspection fixture for tailgates with integrated hinge assembly provided by the present invention;

[0017] Figure 2 A schematic diagram of the first mounting base structure of an automated tailgate inspection tool with integrated hinge assembly provided by the present invention;

[0018] Figure 3 A schematic diagram of the second mounting base structure of an automated tailgate inspection fixture with integrated hinge assembly provided by the present invention;

[0019] Figure 4 A schematic diagram of the third mounting base structure of an automated tailgate inspection fixture with integrated hinge assembly provided by the present invention;

[0020] Figure 5 A schematic diagram of the hinge positioning device of an automated inspection fixture for tailgates with integrated hinge assembly provided by the present invention.

[0021] Figure 6 A schematic diagram of the measuring device for an automated inspection fixture for a tailgate with integrated hinge assembly provided by the present invention;

[0022] Figure 7 A schematic diagram of the reference switching device for an automated tailgate inspection fixture with integrated hinge assembly provided by the present invention;

[0023] Figure 8 A partial installation diagram of the limit pin of the measuring device of an automated inspection tool for tailgates with integrated hinge assembly provided by the present invention.

[0024] Figure 9 This is a partial installation diagram of the zeroing block mounting base of the measuring device for an automated tailgate inspection tool with integrated hinge assembly, provided by the present invention.

[0025] In the diagram: 1. First positioning pin; 2. First positioning block; 3. First product positioning sensor; 4. First mounting base; 5. Second positioning pin; 6. Second positioning block; 7. Second product positioning sensor; 8. Second mounting base; 9. Third positioning block; 10. Third product positioning sensor; 11. Positioning block limit pin; 12. Positioning block sliding guide rail; 13. First cylinder; 14. Third mounting base; 15. Manual ball handle; 16. Pressure head; 17. Hinged Y1 fixed... 18. Hinge Y2 positioning block; 19. Hinge Z1 positioning block; 20. Hinge detection sensor; 21. Sensor mounting bracket; 22. Auxiliary positioning bracket; 23. Floating spring; 24. Fourth mounting base; 25. Cylinder connecting rod; 26. Second cylinder; 27. Hinge Z1 positioning block adjusting shim; 28. Hinge Y-direction adjusting shim; 29. ​​Hinge positioning reference in the fixture; 30. Hinge positioning reference in the assembly; 31. Mounting plate; 32. Reference limit pin switching cylinder 33. Hinge positioning reference limit block in the fixture; 34. Hinge positioning reference limit block in the assembly; 35. Positioning reference limit block sliding guide rail; 36. Reference switching limit pin; 37. Mounting plate cylinder; 38. Simulation block base plate; 39. First sliding guide rail; 40. Second sliding guide rail; 41. Limit pin; 42. Guide post; 43. Cylinder buffer; 44. Cylinder buffer bracket; 45. Sliding motion cylinder; 46. Simulation block mounting plate; 47. Limit block; 48. 49. Limit pin guide sleeve; 50. Limit pin movement cylinder; 51. Simulation block mounting bracket; 52. Simulation block; 53. Measuring sensor positioning bracket; 54. Gap measuring sensor; 55. Gap measuring meter head; 56. Surface difference measuring meter head; 57. Surface difference measuring sensor; 58. Zeroing block; 59. Zeroing block locking pin; 60. Zeroing block mounting base; 61. Mounting bracket; 62. Component positioning device; 63. Hinge positioning device; 64. Measuring device; 65. Reference switching device. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0027] like Figures 1-9 As shown, the automated inspection tool for tailgate with integrated hinge assembly according to the present invention includes a mounting frame 60. Two component positioning devices 61, two hinge positioning devices 62, several measuring devices 63, and a reference switching device 64 are fixedly mounted on the upper surface of the mounting frame 60.

[0028] The two component positioning devices 61 include a first mounting base 4, a second mounting base 8, and a third mounting base 14. A first positioning block 2 is fixedly mounted on the first mounting base 4. A first positioning pin 1 is fixedly mounted on the first positioning block 2. A first detection product positioning sensor 3 is fixedly mounted on the first positioning block 2 located on one side of the first positioning pin 1. A second positioning block 6 is fixedly mounted on the second mounting base 8. A second positioning pin 5 is fixedly mounted on the second positioning block 6. A second detection product positioning sensor 7 is fixedly mounted on the second positioning block 6 located on one side of the second positioning pin 5. A first cylinder 13 is fixedly mounted on the third mounting base 14. A positioning block sliding guide rail 12 is fixedly connected to the output end of the first cylinder 13. A positioning block limiting pin 11 is fixedly connected to the positioning block sliding guide rail 12. A third positioning block 9 is fixedly connected to the end of the positioning block sliding guide rail 12 away from the cylinder 13. A third detection product positioning sensor 10 is fixedly connected to one side wall of the third positioning block 9.

[0029] Each of the two hinge positioning devices 62 includes a second cylinder 26. A cylinder connecting rod 25 is fixedly connected to the output end of the second cylinder 26. A hinge Y1 positioning block 17 is fixedly connected to the upper end of the cylinder connecting rod 25. A manual ball handle 15 is fixedly connected to the upper end of the hinge Y1 positioning block 17. A pressure head 16 is fixedly connected to the lower end of the hinge Y1 positioning block 17. A hinge Z1 positioning block adjusting shim 27 is fixedly installed on the outer wall of the second cylinder 26. A hinge Z1 positioning block 19 is fixedly installed on the hinge Z1 positioning block adjusting shim 27. A hinge Y-axis adjusting shim 28 is fixedly installed on the upper end of the Z1 positioning block 19. A hinge Y2 positioning block 18 is rotatably connected to the hinge Y-axis adjusting shim 28 via a rotating shaft. A hinge detection sensor 20 is provided on the Z1 positioning block 19. A sensor mounting bracket 21 is fixedly installed on the lower end of the hinge detection sensor 20. An auxiliary positioning bracket 22 is fixedly installed on the lower end of the sensor mounting bracket 21. A floating spring 23 is fixedly connected to the upper surface of the auxiliary positioning bracket 22. A fourth mounting seat 24 is fixedly installed on the upper end of the floating spring 23.

[0030] Each of the several measuring devices 63 includes a simulated block base plate 38. A first sliding guide rail 39 is fixedly installed on the upper surface of the simulated block base plate 38. A guide post 42 is fixedly installed on the simulated block base plate 38 on one side of the first sliding guide rail 39. A second sliding guide rail 40 is fixedly installed on the simulated block base plate 38 on one side of the guide post 42. A cylinder buffer bracket 44 is fixedly installed on the second sliding guide rail 40. A cylinder buffer 43 is fixedly installed on the cylinder buffer bracket 44. A sliding motion cylinder 45 is slidably connected to both the first sliding guide rail 39 and the second sliding guide rail 40. The upper ends of the two sliding motion cylinders 45 are fixedly connected to a common module. A simulated block mounting base plate 46 is provided. A simulated block mounting bracket 50 is fixedly mounted on the upper surface of the simulated block mounting base plate 46. A simulated block 51 is fixedly mounted on the simulated block mounting bracket 50. A measuring sensor positioning bracket 52 is fixedly mounted on the simulated block 51. A gap measuring sensor 53 is fixedly mounted on the measuring sensor positioning bracket 52. A gap measuring meter head 54 is fixedly mounted on the side wall of the measuring sensor positioning bracket 52 away from the gap measuring sensor 53. A surface difference measuring meter head 55 is fixedly mounted on the measuring sensor positioning bracket 52 above the gap measuring meter head 54. A surface difference measuring sensor 56 is fixedly mounted on the upper surface of the measuring sensor positioning bracket 52.

[0031] The reference switching device 64 includes a mounting plate 31. A hinge for the fixture positioning reference 29 is fixedly installed on one edge of the upper surface of the mounting plate 31. A hinge for the assembly positioning reference 30 is fixedly installed on the mounting plate 31 on one side of the hinge for the fixture positioning reference 29. A mounting plate cylinder 37 is fixedly installed on the lower surface of the mounting plate 31. A positioning reference limiting block sliding guide rail 35 is fixedly installed on the mounting plate cylinder 37. A hinge for the fixture positioning reference limiting block 33 and a hinge for the assembly positioning reference limiting block 34 are slidably connected on the positioning reference limiting block sliding guide rail 35.

[0032] Among them, a limit pin guide sleeve 48 is fixedly installed on the upper surface edge of one side of the simulation block mounting plate 46. A limit pin movement cylinder 49 is fixedly installed on the limit pin guide sleeve 48. The output end of the limit pin movement cylinder 49 extends through to the bottom of the simulation block mounting plate 46 and is fixedly connected to a limit block 47. A limit pin 41 is fixedly connected to the lower end of the limit block 47.

[0033] Among them, a zeroing block mounting base 59 is fixedly installed on the measuring sensor positioning bracket 52, a zeroing block 57 is provided on the zeroing block mounting base 59, and a zeroing block locking pin 58 is fixedly installed on the zeroing block mounting base 59 corresponding to the position of the zeroing block 57.

[0034] The hinge has a reference switching limit pin 36 inserted into the positioning reference limit block 33 of the inspection fixture. A reference limit pin switching cylinder 32 is fixedly installed on the upper end of the reference switching limit pin 36, and the output end of the reference limit pin switching cylinder 32 is connected to the reference switching limit pin 36.

[0035] When in use, align the positioning holes on the tailgate with the first positioning pin 1 and the second positioning pin 5 respectively and insert them. Then, align the positioning surface of the tailgate with the first positioning block 2, the second positioning block 6 and the third positioning block 9 to complete the positioning of the product on the fixture. When the first product positioning sensor 3, the second product positioning sensor 7 and the third product positioning sensor 10 come into contact with and detect the tailgate, the positioning of the tailgate is completed.

[0036] The tailgate can then be positioned using hinge Y1 positioning block 17, hinge Y2 positioning block 18, and hinge Z1 positioning block 19. The manual ball handle 5 is used to press down the pressure head 16 to prevent the hinge from moving, and the second cylinder 26 applies pressure to ensure that the hinge is completely fixed. Then, the hinge Z1 positioning block adjustment shim 27 and hinge Y-direction adjustment shim 28 can be used to adjust the Z-direction and Y-direction positioning of the hinge according to the requirements. Under the elastic push of the floating spring 23, it can rise through the auxiliary positioning bracket 22, sensor mounting bracket 21, and hinge detection sensor 20, ensuring that the hinge detection sensor 20 is in contact with the tailgate tightening surface during the hinge fastening process and is convenient for detection.

[0037] After the hinge is assembled and the tailgate is completed at the assembly positioning reference 30, the dimensions cannot be directly measured on the assembly positioning reference 30 because the hinge assembly reference needs to be adjusted, and the measurement accuracy cannot be guaranteed. The hinge needs to be switched to the hinge positioning reference limit block 33 for dimension detection. At this time, the reference limit pin switching cylinder 32 pulls the reference switching limit pin 36 out of the hinge assembly positioning reference limit block 34, and moves it to the hinge positioning reference limit block 33 by the mounting plate cylinder 37 through the sliding guide rail 35 of the positioning reference limit block. Then the reference limit pin switching cylinder 32 inserts the reference switching limit pin 36 into the hinge positioning reference limit block 33, thus completing the reference switching.

[0038] After the measurement reference is switched, tighten the zeroing block mounting base 58 so that the zeroing block 57 and the zeroing block mounting base 59 are fully in contact. Then, start the gap measuring sensor 53 and the surface difference measuring sensor 56 so that they contact the zeroing block mounting base 59. Then, zero the measurement in the program and start the measurement again. Under the action of the sliding motion cylinder 45, the simulation block 51 slides along the first sliding guide rail 39 and the second sliding guide rail 40 to the limit block 47. Under the action of the limit pin motion cylinder 49, the limit pin 41 is inserted into the limit block 47 and locked. The gap measuring sensor 53 and the surface difference measuring sensor 56 extend under air pressure. The gap measuring head 54 and the surface difference measuring head 55 contact the tailgate product surface and generate dimensional measurement data. In addition, the simulation block 51 is machined according to the product measurement surface offset and can measure the gap and surface difference at other points of non-fixed sensors, thereby completing the overall automatic detection operation.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated hinge assembled tailgate automated testing fixture comprising a mounting rack (60), characterized in that, The upper surface of the mounting frame (60) is fixedly provided with two component positioning devices (61), two hinge positioning devices (62), a plurality of measuring devices (63) and a reference switching device (64); The two component positioning devices (61) respectively comprise a first mounting seat (4), a second mounting seat (8) and a third mounting seat (14), the first mounting seat (4) is fixedly provided with a first positioning block (2), the first positioning block (2) is fixedly provided with a first positioning pin (1), and a first detection product to position sensor (3) is fixedly installed on the first positioning block (2) on the side of the first positioning pin (1), the second mounting seat (8) is fixedly provided with a second positioning block (6), the second positioning block (6) is fixedly provided with a second positioning pin (5), and a second detection product to position sensor (7) is fixedly installed on the second positioning block (6) on the side of the second positioning pin (5), the third mounting seat (14) is fixedly provided with a first air cylinder (13), the output end of the first air cylinder (13) is fixedly connected with a positioning block sliding guide rail (12), the positioning block sliding guide rail (12) is fixedly connected with a positioning block limiting pin (11), and one end of the positioning block sliding guide rail (12) away from the air cylinder (13) is fixedly connected with a third positioning block (9), one side of the third positioning block (9) is fixedly connected with a third detection product to position sensor (10); The two hinge positioning devices (62) each comprise a second air cylinder (26), the output end of the second air cylinder (26) is fixedly connected with an air cylinder connecting rod (25), the upper end of the air cylinder connecting rod (25) is fixedly connected with a hinge Y1 positioning block (17), the upper end of the hinge Y1 positioning block (17) is fixedly connected with a manual ball handle (15), the lower end of the hinge Y1 positioning block (17) is fixedly connected with a pressing head (16), the outer side wall of the second air cylinder (26) is fixedly provided with a hinge Z1 positioning block adjusting gasket (27), the hinge Z1 positioning block adjusting gasket (27) is fixedly provided with a hinge Z1 positioning block (19), the upper end of the hinge Z1 positioning block (19) is fixedly provided with a hinge Y adjusting gasket (28), the hinge Y adjusting gasket (28) is rotatably connected with a hinge Y2 positioning block (18) through a rotating shaft, the hinge Z1 positioning block (19) is provided with a hinge detection sensor (20), the lower end of the hinge detection sensor (20) is fixedly provided with a sensor mounting bracket (21), the lower end of the sensor mounting bracket (21) is fixedly provided with an auxiliary positioning bracket (22), the upper surface of the auxiliary positioning bracket (22) is fixedly connected with a floating spring (23), and the upper end of the floating spring (23) is fixedly provided with a fourth mounting seat (24). The several measurement devices (63) each include an analog block floor (38), a first sliding guide rail (39) is fixedly installed on the upper surface of the analog block floor (38), a guide column (42) is fixedly installed on the analog block floor (38) on one side of the first sliding guide rail (39), a second sliding guide rail (40) is fixedly installed on the analog block floor (38) on the side of the guide column (42), a cylinder buffer support (44) is fixedly installed on the second sliding guide rail (40), a cylinder buffer (43) is fixedly installed on the cylinder buffer support (44), a sliding movement cylinder (45) is slidingly connected to the first sliding guide rail (39) and the second sliding guide rail (40), an analog block mounting seat plate (46) is fixedly connected to the upper ends of the two sliding movement cylinders (45), an analog block mounting support (50) is fixedly installed on the upper surface of the analog block mounting seat plate (46), an analog block (51) is fixedly installed on the analog block mounting support (50), a measurement sensor positioning support (52) is fixedly installed on the analog block (51), a gap measurement sensor (53) is fixedly installed on the measurement sensor positioning support (52), a gap measurement gauge head (54) is fixedly installed on the side wall of the measurement sensor positioning support (52) away from the gap measurement sensor (53), a surface difference measurement gauge head (55) is fixedly installed on the measurement sensor positioning support (52) above the gap measurement gauge head (54), and a surface difference measurement sensor (56) is fixedly installed on the upper surface of the measurement sensor positioning support (52). The reference switching device (64) includes a mounting plate (31), a hinge-in-inspection fixture positioning reference (29) is fixedly installed on one side edge of the upper surface of the mounting plate (31), a hinge-in-assembly positioning reference (30) is fixedly installed on the mounting plate (31) on the side of the hinge-in-inspection fixture positioning reference (29), a mounting plate cylinder (37) is fixedly installed on the lower surface of the mounting plate (31), a positioning reference limit block sliding guide rail (35) is fixedly installed on the mounting plate cylinder (37), a hinge-in-inspection fixture positioning reference limit block (33) and a hinge-in-assembly positioning reference limit block (34) are slidingly connected to the positioning reference limit block sliding guide rail (35); The upper surface edge of one side of the analog block mounting seat plate (46) is fixedly installed with a limit pin guide sleeve (48), the limit pin guide sleeve (48) is fixedly installed with a limit pin movement cylinder (49), the output end of the limit pin movement cylinder (49) extends through the analog block mounting seat plate (46) and is fixedly connected with a limit block (47), and the lower end of the limit block (47) is fixedly connected with a limit pin (41).

2. The integrated hinge assembled tailgate automated inspection fixture of claim 1, wherein: The measurement sensor positioning support (52) is fixedly provided with a zero calibration block mounting seat (59), the zero calibration block mounting seat (59) is provided with a zero calibration block (57), and the zero calibration block mounting seat (59) corresponding to the position of the zero calibration block (57) is fixedly provided with a zero calibration block locking pin (58).

3. The integrated hinge assembled tailgate automated inspection fixture of claim 1, wherein: The hinge is inserted with a reference switching limiting pin (36) on the gauge positioning reference limiting block (33), the upper end of the reference switching limiting pin (36) is fixedly provided with a reference limiting pin switching cylinder (32), and the output end of the reference limiting pin switching cylinder (32) is connected with the reference switching limiting pin (36).

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