An automatic detection fixture for automobile headlights

Abstract

The present invention discloses an automatic detection fixture for automobile headlights, comprising a cabinet, a support frame is provided at one end of the cabinet, universal wheels are provided at the lower ends of the cabinet and the support frame, a plurality of pulleys are provided at the upper ends of the cabinet and the support frame, a limiting column is provided at one end of the pulley, a fixture floor is provided at the upper end of the cabinet, a plurality of supporting columns are provided at the upper end of the fixture floor, an alignment column is provided at the upper end of the support column, a zeroing module is provided at the upper end of the alignment column, a plurality of limiting devices, a plurality of rotating devices and a horizontal moving device are further provided at the upper end of the fixture floor, and a plurality of detection devices are provided at the upper ends of the plurality of rotating devices and the horizontal moving device. The automatic detection fixture for automobile headlights disclosed by the present invention no longer needs to detect the detection points of automobile headlights one by one, thereby improving the detection efficiency, no longer requiring the cooperation of multiple personnel for operation, reducing the personnel cost, and being safer than traditional fixtures.

Description

Technical Field

[0001] The invention relates to the field of vehicle lamp detection, in particular to an automatic detection fixture for vehicle headlights. Background Art

[0002] With the continued development of industry, the matching accuracy between automotive parts must meet design requirements to satisfy the needs of vehicle performance and appearance. As a functional component and major appearance component of a vehicle, how to control the appearance and size of headlights to ensure a close match with other vehicle components is one of the key research projects in the automotive lighting industry. In the current market, to meet the precision requirements of headlights, the conventional practice is to measure the appearance of automotive headlights using dedicated inspection fixtures. Inspection fixtures are non-standard, high-precision, professional inspection tools. Existing conventional inspection fixtures require a large number of personnel to inspect each inspection point of the automotive headlights one by one, resulting in significant waste of manpower and inefficiency. In addition, traditional inspection fixtures are relatively complex to operate and have low inspection accuracy, resulting in a waste of manpower, material, and financial resources. The present invention discloses an automatic inspection fixture for automobile headlights. First, a zero calibration module is used to adjust the inspection equipment to a precise position. Then, a contact displacement sensor is used to complete the inspection of the inspection points of the automobile headlights at one time. Finally, a computer is used to collect data from the contact displacement sensor to automatically analyze whether the appearance dimensions of the automobile headlights are qualified. In this way, there is no need to inspect the inspection points of the automobile headlights one by one, thereby improving inspection efficiency and eliminating the need for multiple personnel to cooperate in operation. This reduces personnel and time costs and is safer and more efficient than traditional inspection fixtures. Summary of the Invention

[0003] The purpose of the present invention is to provide an automatic detection fixture for automobile headlights to solve the problems in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A vehicle headlight automatic detection fixture comprises a cabinet, a support frame is provided at one end of the cabinet, universal wheels are provided at the lower ends of the cabinet and the support frame, a plurality of pulleys are provided at the upper ends of the cabinet and the support frame, a limiting column is provided at one end of the pulley, a fixture floor is provided at the upper end of the cabinet, a plurality of support columns are provided at the upper end of the fixture floor, an alignment column is provided at the upper end of the support column, a zeroing module is provided at the upper end of the alignment column, a plurality of limiting devices, a plurality of rotating devices and a horizontal moving device are further provided at the upper end of the fixture floor, and a plurality of detecting devices are provided at the upper ends of the plurality of rotating devices and the horizontal moving device;

[0006] The above-mentioned cabinet and support frame are used to support components, the universal wheel is used to facilitate the transfer of the device, the pulley is used to slide the inspection fixture floor to the upper end of the cabinet or the upper end of the support frame, the limit column limits the position of the inspection fixture floor, the support column is used to support the zeroing module and the car headlights, the alignment column is connected to the zeroing module, the limit device is used to limit the car headlights so that they are installed in a precise position, and the rotating device and the horizontal moving device are used to place the detection device at the detection point of the car headlights and the zeroing module.

[0007] The detection device includes a detection block, a fixed tube, a contact displacement sensor, and an endotracheal tube. The fixed tube is sleeved on the detection block, the contact displacement sensor is arranged inside the fixed tube, and the endotracheal tube is connected to the contact displacement sensor.

[0008] The detection block is precisely placed at the position to be detected on the car headlight. The fixing tube is used to support the contact displacement sensor, which is used to detect the position of the point to be detected on the car headlight. The tracheal tube is connected to the pneumatic device inside the car cabinet to provide power to the contact displacement sensor.

[0009] A plurality of pieces to be inspected are provided at the outer end of the zero calibration module. The alignment posts are fixedly connected to the zero calibration module. The support posts and the alignment posts are connected via pre-alignment pieces and latches.

[0010] Each of the above-mentioned parts to be inspected represents a position to be inspected. A detection device is correspondingly provided on each part to be inspected, which is used to detect the zeroing module, connect the alignment column and the zeroing module, align the alignment column and the support column with the alignment part, and fix the alignment column and the support column with the pin, so that the zeroing module can be installed in the correct position.

[0011] The limiting device includes a limiting column, a limiting block, a prism, a cylinder, and a wrench. The limiting block is provided at the upper end of the limiting column, a prism is provided at one end of the limiting block, a cylinder is provided at the lower end of the prism, and a wrench is provided at the lower end of the cylinder.

[0012] The above-mentioned limit column is used to support the limit block, the limit block is used to limit the position of the car headlights, the prism is sleeved in the limit block, and the cylinder is used to connect the prism and the wrench. By turning the wrench, the cylinder, prism and limit block can be driven to rotate to a specific angle in turn, so that the limit block can accurately limit the position of the car headlights.

[0013] The rotating device includes a fixed column, a connecting piece, a rotating rod, a rotating plate, and a linkage piece. The upper end of the fixed column is provided with a connecting piece, the interior of the connecting piece is provided with a rotating rod, the rotating plate is sleeved on the rotating rod, and one end of the rotating plate is provided with a linkage piece, and the linkage piece is connected to several detection devices.

[0014] The fixed column is used to support the connecting piece, and the connecting piece is used to connect the rotating rod and the rotating plate, so that the rotating plate can rotate, the linkage piece is driven to rotate by the rotating plate, and the plurality of detection devices are driven to rotate by the linkage piece.

[0015] The horizontal moving device includes a fixed seat, a slide rail, a slider, a sliding plate, and a linkage plate. The upper end of the fixed seat is provided with a slide rail, the upper end of the slide rail is provided with a slider, the upper end of the slider is provided with a sliding plate, one end of the sliding plate is provided with a linkage plate, and the linkage plate is connected to several detection devices.

[0016] The fixing seat is used to support the slide rail. The slide rail and the slider slide against each other to make the slide plate slide. The slide plate drives the linkage plate to slide, and the linkage plate drives several detection devices to slide.

[0017] The connecting piece and the middle part of the rotating plate are provided with a spiral piece.

[0018] The spiral member is manually rotated to rotate the rotating plate to a certain angle, and is the power source for the rotating plate to rotate.

[0019] A sliding handle is provided on the upper end of the sliding plate, and two latch blocks are provided on one side of the upper end of the fixing seat, and a No. 2 latch is passed between the latch block and the sliding plate.

[0020] The sliding handle is the power source for the sliding plate to slide. When the sliding plate slides to a precise position, the second latch is inserted into the latch block and the sliding plate to fix the sliding plate.

[0021] An upper support frame is provided at the upper end of the vehicle cabinet, a display screen is provided at the lower end of the upper support frame, a three-color light is provided on one side of the display screen, and a fluorescent light is provided at the front end of the display screen.

[0022] The above-mentioned upper support frame is used to support the display screen, tricolor light and fluorescent lamp. When the test results of the car headlights come out, they will be collected and analyzed by the computer device in the car cabinet and transmitted to the display screen to facilitate the staff to understand the test results. If there is insufficient light during installation and testing, fluorescent lamps can be used to supplement the light. The tricolor light is red, yellow and green. When the test result of the car headlights is good, the green light of the tricolor light will be on. If the test result of the car headlights is defective, the red light of the tricolor light will be on.

[0023] A plurality of handles are provided on both sides of the upper end of the inspection tool floor.

[0024] The handle is convenient for sliding the inspection fixture floor between the support frame and the vehicle cabinet by manpower.

[0025] The front end of the cabinet is provided with an industrial control switch, an emergency stop switch and a fluorescent lamp switch.

[0026] The above-mentioned industrial control switch is used to control the start or stop of detection, the emergency stop switch is used to control the emergency stop of the machine to prevent machine failure from damaging components, and the fluorescent lamp switch is used to control the fluorescent lamp.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention discloses an automatic inspection fixture for automobile headlights, which first uses a zero calibration module to adjust the inspection equipment to a precise position, then uses a contact displacement sensor to complete the inspection of the inspection points of the automobile headlights at one time, and finally uses a computer to collect data from the contact displacement sensor to automatically analyze whether the appearance dimensions of the automobile headlights are qualified. In this way, there is no need to inspect the inspection points of the automobile headlights one by one, which improves the inspection efficiency and no longer requires multiple personnel to cooperate in operation, which reduces personnel costs and time costs. It is safer and more efficient than traditional inspection fixtures. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The present invention is a three-dimensional automatic detection fixture for automobile headlights Figure 1 ;

[0029] Figure 2 The present invention is a three-dimensional automatic detection fixture for automobile headlights Figure 2 ;

[0030] Figure 3 A three-dimensional diagram of the zero calibration module of the present invention;

[0031] Figure 4 is a perspective view of the detection device of the present invention;

[0032] Figure 5 is a three-dimensional diagram of the limiting device of the present invention;

[0033] Figure 6 is a perspective view of the rotating device of the present invention;

[0034] Figure 7 It is a three-dimensional diagram of the horizontal moving device of the present invention.

[0035] Reference numerals: 1, cabinet; 2, support frame; 3, universal wheel; 4, pulley; 5, limit column; 6, inspection fixture floor; 7, support column; 8, alignment column; 9, zeroing module; 10, limit device; 11, rotation device; 12, horizontal movement device; 13, detection device; 14, detection block; 15, fixing cylinder; 16, contact displacement sensor; 17, tracheal tube; 18, part to be inspected; 19, pre-alignment part; 20, latch; 21, limit column; 22, limit block; 23, prism; 2 4. Cylinder; 25. Wrench; 26. Fixed column; 27. Connecting piece; 28. Rotating rod; 29. Rotating plate; 30. Linkage piece; 31. Fixed seat; 32. Slide rail; 33. Slider; 34. Sliding plate; 35. Linkage plate; 36. Screw piece; 37. Sliding handle; 38. Latch block; 39. No. 2 latch; 40. Upper support frame; 41. Display screen; 42. Three-color light; 43. Fluorescent lamp; 44. Handle; 45. Industrial control switch; 46. Emergency stop switch; 47. Fluorescent lamp switch. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example: See Figures 1 to 7In the present invention, an automatic inspection fixture for automobile headlights includes a cabinet 1, a pneumatic device and a computer are installed inside the cabinet 1, the pneumatic device is the power source of the contact displacement sensor 16, and the computer is used to control the operation, detection, data collection, and analysis of the entire device. A support frame 2 is provided at one end of the cabinet 1, and the support frame 2 is used to support the inspection fixture floor 6. The cabinet 1 and the support frame 2 are provided with universal wheels 3 at the lower ends, which facilitate the movement of the cabinet 1 and the support frame 2. The cabinet 1 and the support frame 2 are provided with a support frame 2 at the upper ends. There are several pulleys 4, which are arranged side by side and placed at the lower end of the inspection floor 6 to slide the inspection floor 6 between the cabinet 1 and the support frame 2. A limit column 5 is set at one end of the pulley 4. The limit column 5 is used to limit the inspection floor 6 so that the inspection floor 6 does not fall out of the support frame 2. The upper end of the cabinet 1 is provided with a inspection floor 6. The inspection floor 6 is a flat structure used to carry various components and serve as a workbench for automobile headlight testing. The upper end of the inspection floor 6 is provided with several support columns 7. The support columns 7 Fixed on the inspection fixture floor 6, an alignment post 8 is provided on the upper end of the support post 7, and the alignment post 8 is used to support the zeroing module 9. The alignment post 8 and the zeroing module 9 are fixed with screws. The upper end of the alignment post 8 is provided with the zeroing module 9. The appearance size and shape of the zeroing module 9 are consistent with the car headlight. First, use this device to detect whether the zeroing module 9 is the established size set by the computer. When the zeroing module 9 is not the established size, it is necessary to adjust the zeroing module 9. When the zeroing module 9 is the established size, the present device can be used to detect whether the car headlight is the established size set by the computer. The upper end of the inspection fixture floor 6 is also provided with a plurality of limiting devices 10, a plurality of rotating devices 11 and a horizontal moving device 12. The limiting device 10 is used to limit the car headlight to a predetermined position. The rotating device 11 and the horizontal moving device 12 are used to support the detection device 13. A plurality of detection devices 13 are provided on the upper ends of the rotating devices 11 and the horizontal moving device 12. The detection device 13 is used to detect the appearance size of the car headlight and the zeroing module 9;

[0038] The detection device 13 includes a detection block 14, a fixed cylinder 15, a contact displacement sensor 16, and an endotracheal tube 17. The fixed cylinder 15 is sleeved on the detection block 14. The detection block 14 is fixedly connected to the linkage member 30 on the rotating device 11 and the linkage plate 35 on the horizontal moving device 12. The fixed cylinder 15 is fixedly sleeved on both sides of the detection block 14. The contact displacement sensor 16 is fixedly arranged inside the fixed cylinder 15. The endotracheal tube 17 is connected to the contact displacement sensor 16. The other end of the endotracheal tube 17 is connected to the pneumatic device in the vehicle cabinet 1 to provide power to the contact displacement sensor 16.

[0039] Several test pieces 18 are provided at the outer end of the zeroing module 9. The test pieces 18 are fixed on the zeroing module 9 and serve as the detection points of the zeroing module 9. They are arranged opposite to the contact displacement sensor 16. The alignment column 8 and the zeroing module 9 are fixedly connected. The support column 7 and the alignment column 8 are connected by a pre-alignment piece 19 and a latch 20. The pre-alignment piece 19 is used to align the support column 7 and the alignment column 8. The latch 20 is used to fixedly connect the support column 7 and the alignment column 8.

[0040] The limiting device 10 includes a limiting column 21, a limiting block 22, a prism 23, a cylinder 24, and a wrench 25. The limiting block 22 is fixedly provided at the upper end of the limiting column 21, and the lower end of the limiting column 21 is fixedly connected to the inspection fixture floor 6 for supporting the limiting block 22. The limiting block 22 is used to limit the position of the car headlights. A prism 23 is provided at one end of the limiting block 22, and the prism 23 is sleeved in the limiting block 22. A cylinder 24 is provided at the lower end of the prism 23. The cylinder 24 is used to connect the prism 23 and the wrench 25. A wrench 25 is provided at the lower end of the cylinder 24. The wrench 25 is used to rotate the prism 23. Rotating the wrench 25 at a certain angle causes the prism 23 to drive the limiting block 22 to rotate a certain angle, thereby limiting the car headlights to a predetermined position.

[0041] The rotating device 11 includes a fixed column 26, a connecting member 27, a rotating rod 28, a rotating plate 29, and a linkage member 30. The upper end of the fixed column 26 is provided with a connecting member 27, and the lower end of the fixed column 26 is fixedly connected to the inspection fixture floor 6 for supporting the connecting member 27. The connecting member 27 is used to connect the rotating rod 28 and the rotating plate 29. A rotating rod 28 is rotatably provided inside the connecting member 27, and a rotating plate 29 is sleeved on the rotating rod 28. The rotating rod 28 and the rotating plate 29 are rotatably provided. A linkage member 30 is provided at one end of the rotating plate 29. The rotating plate 29 and the linkage member 30 are fixedly connected. The linkage member 30 is connected to several detection devices 13 for placing the detection devices 13 in a predetermined position.

[0042] The horizontal moving device 12 includes a fixed seat 31, a slide rail 32, a slider 33, a sliding plate 34, and a linkage plate 35. The slide rail 32 is fixedly provided on the upper end of the fixed seat 31, and the lower end of the fixed seat 31 is fixedly connected to the inspection fixture floor 6 for supporting the slide rail 32. The slider 33 is provided on the upper end of the slide rail 32. The slide rail 32 and the slider 33 are slidably connected. The sliding plate 34 is fixedly provided on the upper end of the slider 33. The sliding plate 34 is used to drive the linkage plate 35 to move horizontally. The linkage plate 35 is fixedly provided at one end of the sliding plate 34. The linkage plate 35 is fixedly connected to several detection devices 13 for placing several detection devices 13 in predetermined positions.

[0043] A screw member 36 is provided in the middle of the connecting member 27 and the rotating plate 29 . The screw member 36 and the rotating plate 29 are spirally connected. When the screw member 36 is rotated, the rotating plate 29 can be rotated.

[0044] A sliding handle 37 is fixedly provided on the upper end of the sliding plate 34. By manually pulling the sliding handle 37, the sliding plate 34 can be horizontally fixed. Two latch blocks 38 are fixedly provided on one side of the upper end of the fixing seat 31. A second latch 39 passes between the latch block 38 and the sliding plate 34. The second latch 39 is used to fix the position of the sliding plate 34.

[0045] An upper support frame 40 is fixedly provided at the upper end of the cabinet 1. The upper support frame 40 is used to support a display screen 41, a three-color light 42, and a fluorescent light 43. A display screen 41 is provided at the lower end of the upper support frame 40. The display screen 41 is used to display the results of computer analysis. A three-color light 42 is provided on one side of the display screen 41. The three-color light 42 is green, yellow and red. When the test result of the car headlights meets the established size set by the computer and the test is qualified, the green light is on. When the test result of the car headlights does not meet the established size set by the computer and the test is unqualified, the red light is on. A fluorescent light 43 is provided at the front end of the display screen 41. When the light is insufficient, the fluorescent light 43 is used to supplement the light.

[0046] A plurality of handles 44 are provided on both sides of the upper end of the inspection fixture floor 6 . The handles 44 are used to pull the inspection fixture floor 6 and move it between the vehicle cabinet 1 and the support frame 2 .

[0047] An industrial control switch 45, an emergency stop switch 46 and a fluorescent lamp switch 47 are provided at the front end of the cabinet 1. The industrial control switch 45 is used to control the start or stop of the detection, the emergency stop switch 46 is used to control the emergency stop of the machine to prevent the machine from damaging parts due to failure, and the fluorescent lamp switch 47 is used to control the fluorescent lamp 43.

[0048] The working principle of the present invention is as follows: the testing steps of an automatic inspection fixture for automobile headlights are as follows: first, the established external dimensions of the automobile headlights are input into the computer in the vehicle cabinet 1, the zeroing module 9 is fixed to the support column 7, and the industrial control switch 45 is turned on to test the zeroing module 9. After the test, if the zeroing module 9 meets the established dimensions in the computer, the zeroing module 9 is removed and the automobile headlight is fixed to the support column 7 for testing. If the zeroing module 9 does not meet the established dimensions in the computer, the zeroing module 9 is adjusted using another device to make the zeroing module 9 meet the established dimensions in the computer.

[0049] The specific steps are:

[0050] 1. Zero calibration

[0051] Turn on the industrial control switch 45, the pneumatic device starts, and the tracheal tube 17 is fed with power gas, which drives the contact displacement sensor 16 on the detection device 13 to move until it contacts the test piece 18 on the zero calibration module 9. The contact displacement sensor 16 transmits the collected signal to the computer in the vehicle cabinet 1. The computer compares the collected data with the preset dimensions set by the computer. If the collected data is within the error range, the green light of the three-color light 42 lights up, indicating that the zero calibration is complete.

[0052] 2. Remove the zero calibration module 9

[0053] After the zero calibration is completed, first pull the handle 44, and the inspection fixture floor 6 is pulled along the pulley 4 to the support frame 2, and then pull the sliding handle 37, so that the sliding plate 34 drives the linkage plate 35 and several detection devices 13 in turn, and several detection devices 13 leave the zero calibration module 9, and then rotate the screw member 36 to rotate the rotating plate 29 along the rotating rod 28, and drive the linkage member 30 and several detection devices 13 in turn, and several detection devices 13 leave the zero calibration module 9. At this time, the detection device 13 and the zero calibration module 9 do not interfere with each other. Finally, the pin 20 is used to release the support column 7 and the alignment column 8, and the zero calibration module 9 is removed;

[0054] 3. Install car headlights

[0055] After removing the zeroing module 9, install and test the car headlights. First, fix the car headlights, that is, fix the car headlights and the alignment column 8, align the alignment column 8 and the support column 7 through the pre-alignment piece 19, and fix the alignment column 8 and the support column 7 with the latch 20. Then install the horizontal moving device 12 in place, that is, push the sliding handle 37, and drive the sliding plate 34, the linkage plate 35, and the detection device 13 in turn, so that the contact displacement sensor 16 on the detection device 13 is aligned with the corresponding detection point of the car headlight, and then install the rotating device 11 in place. Rotate the screw 36 to rotate the rotating plate 29 and in turn drive the linkage 30 and the detection device 13, so that the contact displacement sensor 16 on the detection device 13 is aligned with the corresponding detection point of the car headlight. Then install the limit device 10 in place, that is, manually rotate the wrench 25, which in turn drives the cylinder 24, the prism 23, and the limit block 22 to rotate, so that the limit block 22 rotates to a specific angle and limits a specific part of the car headlight. Finally, pull the handle 44 to pull the inspection fixture floor 6 back to the car cabinet 1. At this point, the car headlight installation is completed.

[0056] 4. Detect car headlights

[0057] After the headlights are installed, the industrial control switch 45 is turned on, the pneumatic device is activated, and power gas is introduced into the tracheal tube 17, which drives the contact displacement sensor 16 on the detection device 13 to move until it contacts the point to be detected on the headlight. The contact displacement sensor 16 transmits the collected signal to the computer in the vehicle cabinet 1. The computer compares the collected data with the predetermined dimensions set by the computer. If the collected data is within the error range, the green light of the three-color light 42 is illuminated, indicating that the test is complete and the headlight is qualified. If the collected data is outside the error range, the red light of the three-color light 42 is illuminated, indicating that the test is complete and the headlight is unqualified.

[0058] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An automatic inspection fixture for automobile headlights, comprising a cabinet (1), characterized in that: A support frame (2) is provided at one end of the vehicle cabinet (1), universal wheels (3) are provided at the lower ends of the vehicle cabinet (1) and the support frame (2), a plurality of pulleys (4) are provided at the upper ends of the vehicle cabinet (1) and the support frame (2), a limiting column (5) is provided at one end of the pulley (4), a check fixture floor (6) is provided at the upper end of the vehicle cabinet (1), a plurality of support columns (7) are provided at the upper end of the check fixture floor (6), an alignment column (8) is provided at the upper end of the support column (7), a zeroing module (9) is provided at the upper end of the alignment column (8), a plurality of limiting devices (10), a plurality of rotating devices (11) and a horizontal moving device (12) are also provided at the upper end of the check fixture floor (6), and a plurality of detection devices (13) are provided at the upper ends of the plurality of rotating devices (11) and the horizontal moving device (12); The detection device (13) comprises a detection block (14), a fixed cylinder (15), a contact displacement sensor (16), and an endotracheal tube (17); the fixed cylinder (15) is sleeved on the detection block (14); the contact displacement sensor (16) is arranged inside the fixed cylinder (15); and the endotracheal tube (17) and the contact displacement sensor (16) are connected; The outer end of the zero calibration module (9) is provided with a plurality of pieces to be inspected (18), the alignment column (8) and the zero calibration module (9) are fixedly connected, and the support column (7) and the alignment column (8) are connected via a pre-alignment piece (19) and a latch (20).

2. The automatic inspection fixture for automobile headlights according to claim 1, characterized in that: The limiting device (10) comprises a limiting column (21), a limiting block (22), a prism (23), a cylinder (24), and a wrench (25). In the limiting device (10), the limiting block (22) is provided at the upper end of the limiting column (21), the prism (23) is provided at one end of the limiting block (22), the cylinder (24) is provided at the lower end of the prism (23), and the wrench (25) is provided at the lower end of the cylinder (24).

3. The automatic inspection fixture for automobile headlights according to claim 1, characterized in that: The rotating device (11) comprises a fixed column (26), a connecting member (27), a rotating rod (28), a rotating plate (29), and a linkage member (30). The upper end of the fixed column (26) is provided with a connecting member (27), the interior of the connecting member (27) is provided with a rotating rod (28), the rotating plate (29) is sleeved on the rotating rod (28), and one end of the rotating plate (29) is provided with a linkage member (30), and the linkage member (30) is connected to a plurality of detection devices (13).

4. The automatic inspection fixture for automobile headlights according to claim 1, characterized in that: The horizontal moving device (12) comprises a fixed seat (31), a slide rail (32), a slider (33), a sliding plate (34), and a linkage plate (35). The upper end of the fixed seat (31) is provided with a slide rail (32), the upper end of the slide rail (32) is provided with a slider (33), the upper end of the slider (33) is provided with a sliding plate (34), one end of the sliding plate (34) is provided with a linkage plate (35), and the linkage plate (35) is connected to a plurality of detection devices (13).

5. The automatic inspection fixture for automobile headlights according to claim 3, characterized in that: A spiral member (36) is provided in the middle of the connecting member (27) and the rotating plate (29).

6. The automatic inspection fixture for automobile headlights according to claim 4, characterized in that: The upper end of the sliding plate (34) is provided with a sliding handle (37), and one side of the upper end of the fixing seat (31) is provided with two latch blocks (38), and a second latch (39) passes through the latch blocks (38) and the sliding plate (34).

7. The automatic inspection fixture for automobile headlights according to claim 1, characterized in that: An upper support frame (40) is provided at the upper end of the vehicle cabinet (1), a display screen (41) is provided at the lower end of the upper support frame (40), a three-color light (42) is provided on one side of the display screen (41), and a fluorescent light (43) is provided at the front end of the display screen (41).

8. The automatic inspection fixture for automobile headlights according to claim 1, characterized in that: A plurality of handles (44) are provided on both sides of the upper end of the inspection tool floor (6).

9. The automatic inspection fixture for automobile headlights according to claim 1, characterized in that: The front end of the vehicle cabinet (1) is provided with an industrial control switch (45), an emergency stop switch (46) and a fluorescent lamp switch (47).

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