Automobile wire harness performance detection method

Abstract

The invention relates to an automobile wire harness performance detection method, which comprises a detection platform, the detection platform is provided with a tension detection assembly and a wear resistance detection assembly, the tension detection assembly comprises four connecting plates, the four connecting plates are respectively arranged at four corners of the top surface of the detection platform, and a guide rod is arranged between every two opposite connecting plates; the output end of the first hydraulic cylinder drives the groove in the top surface of the moving block to move towards the direction of the first hydraulic cylinder, and the movement of the groove drives the moving block on the bottom surface of the groove to move along the horizontal direction of the guide rod, so that the tension test of the wire harness is realized; the output end of a first motor drives a first gear to rotate, the first gear rotates to drive a second gear to rotate, the second gear rotates to drive a sleeve to rotate, and the sleeve rotates to drive an L-shaped support, an arc-shaped clamping plate and a wire harness to rotate and is matched with a polishing wheel; therefore, the wear resistance of the external insulation skin of the wire harness is detected.

Description

Technical Field

[0001] The invention relates to the technical field of performance detection, in particular to a method for detecting the performance of an automobile wiring harness. Background Art

[0002] As the core component of the automobile circuit system, the quality and reliability of the automobile wiring harness are crucial to the overall performance of the automobile. However, during the manufacturing and use of the automobile, the wiring harness may be subjected to various tensions and wear, such as vibration during vehicle driving, pulling during driver operation, and friction in the road environment. These factors may cause the wires inside the wiring harness to break, the connections to loosen, or the insulation layer to break, thereby affecting the normal transmission of the circuit and the safe operation of the car. Therefore, it is particularly important to test the tension and wear resistance of the automobile wiring harness. Summary of the invention

[0003] The purpose of the present invention is to provide a method for detecting the performance of an automobile wiring harness, so as to solve the problems of vibration during vehicle driving, pulling during driver operation, and friction in the road environment, which may cause the wires inside the wiring harness to break, the connections to become loose, or the insulation layer to be damaged.

[0004] To achieve the above object, the present invention provides the following technical solutions: a method for detecting performance of an automobile wiring harness, comprising a detection platform, wherein a tension detection component and a wear resistance detection component are provided on the detection platform;

[0005] The tension detection assembly includes a connecting plate, four of which are provided and are respectively arranged at the four corners of the top surface of the detection platform, a guide rod is provided between two opposite connecting plates, a fixed block and a movable block are respectively sleeved on both ends of the outer wall of the guide rod, the top surfaces of the two fixed blocks and the top surfaces of the two movable blocks are provided with grooves, the two grooves are symmetrically distributed, a bidirectional threaded rod is provided inside each of the grooves, one end of the bidirectional threaded rod passes through the groove and extends outward to be connected to the output end of the second motor, movable blocks are sleeved on both ends of the outer wall of the bidirectional threaded rod, the front faces of the two movable blocks are provided with L-shaped clamping plates, the two L-shaped clamping plates are symmetrically distributed, and arc grooves are provided at opposite ends of the two L-shaped clamping plates;

[0006] The wear resistance detection component includes a vertical plate, and two vertical plates are provided. The two vertical plates are arranged on the opposite sides of the two grooves, and the output end of the first motor is provided on the opposite sides of the two vertical plates. The output end of the first motor passes through the vertical plate and extends outward to be sleeved with a first gear. The opposite sides of the two vertical plates are connected with a sleeve through a bearing, and the outer wall of the sleeve is sleeved with a second gear, and the second gear is meshed and connected with the first gear.

[0007] Preferably, a through opening is provided through the top surface of the groove, and the movable block is slidably connected to the through opening.

[0008] Preferably, one end of the detection platform close to the moving block is connected to a support plate, the top surface of the support plate is provided with a first hydraulic cylinder, and the output end of the first hydraulic cylinder is connected to the groove on the top surface of the moving block.

[0009] Preferably, the outer wall of the sleeve is symmetrically provided with two L-shaped brackets, and a second threaded rod is passed through the L-shaped bracket. The opposite ends of the two second threaded rods are connected to arc-shaped clamping plates through bearings, and the opposite ends of the two second threaded rods are provided with a knob.

[0010] Preferably, a side wall of the detection platform is connected to a side frame, a first threaded rod is provided inside the side frame, a slider is sleeved on the outer wall of the first threaded rod, sliding openings are provided on both side walls of the side frame, the slider is slidably connected to the sliding openings, one end of the first threaded rod passes through the side frame and extends outward to be connected to the output end of the third motor, a bracket is provided on the top surface of the slider, a second hydraulic cylinder is provided on the top surface of the bracket, the output end of the second hydraulic cylinder passes through the bracket and extends downward to be connected to a fixed frame, and a grinding wheel is provided inside the fixed frame.

[0011] The present invention has at least the following beneficial effects:

[0012] 1. The present invention drives the bidirectional threaded rod to rotate through the output end of the second motor, and the rotation of the bidirectional threaded rod drives the two movable blocks thereon to move relative to each other along the horizontal direction of the through hole, and the relative movement of the two movable blocks drives the two L-shaped clamps to move relative to each other. The two ends of the wiring harness can be clamped and fixed by the two groups of L-shaped clamps. After the wiring harness is clamped and fixed, the groove on the top surface of the movable block is driven to move toward the direction of the first hydraulic cylinder through the output end of the first hydraulic cylinder. The movement of the groove drives the movable block on the bottom surface to move along the horizontal direction of the guide rod, thereby realizing the tension test of the wiring harness, and the tension detection component also includes a displacement sensor and a force sensor. The displacement sensor and the force sensor can monitor the deformation and stress of the wiring harness in real time, and transmit the data to the control module for processing. The image acquisition device can record the breaking point position and shape change of the wiring harness under the action of tension, providing a basis for subsequent analysis and improvement;

[0013] 2. The present invention rotates a knob, and the rotation of the knob drives the second threaded rod and the arc-shaped clamp to move. By adjusting the positions of the two arc-shaped clamps, the wiring harness can be clamped and fixed. After the two sets of arc-shaped clamps clamp the two ends of the wiring harness, the output end of the first motor drives the first gear to rotate, and the rotation of the first gear drives the second gear to rotate. The rotation of the second gear drives the sleeve to rotate. The rotation of the sleeve drives the L-shaped bracket, the arc-shaped clamp and the wiring harness to rotate, and cooperates with the grinding wheel to realize the wear resistance detection of the external insulation skin of the wiring harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural front view of the present invention;

[0015] Figure 2 It is a structural side view of the present invention;

[0016] Figure 3 It is a schematic diagram of the structure of the groove of the present invention;

[0017] Figure 4 It is a structural schematic diagram of the vertical plate of the present invention.

[0018] In the accompanying drawings: 1. detection platform; 2. connecting plate; 3. guide rod; 4. fixed block; 5. moving block; 6. support plate; 7. first hydraulic cylinder; 8. groove; 9. side frame; 10. slide; 11. first threaded rod; 12. slider; 13. bracket; 14. second hydraulic cylinder; 15. fixed frame; 16. grinding wheel; 17. through port; 18. movable block; 19. L-shaped clamp; 20. vertical plate; 21. first motor; 22. second motor; 23. first gear; 24. second gear; 25. sleeve; 26. L-shaped bracket; 27. second threaded rod; 28. arc clamp; 29. ​​knob; 30. third motor; 31. bidirectional threaded rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0020] Example

[0021] See also Figure 1 and Figure 3The present invention provides a technical solution: a method for detecting the performance of an automobile wiring harness, comprising a detection platform 1, on which a tension detection component and a wear resistance detection component are arranged, the tension detection component comprises a connecting plate 2, four connecting plates 2 are arranged, and are respectively fixedly arranged at the four corners of the top surface of the detection platform 1, and a guide rod 3 is fixedly arranged between two opposite connecting plates 2, and a fixed block 4 and a moving block 5 are respectively sleeved on both ends of the outer wall of the guide rod 3, the fixed block 4 is fixedly connected to the guide rod 3, and the moving block 5 is slidably connected to the guide rod 3, and the top surfaces of the two fixed blocks 4 and the top surfaces of the two moving blocks 5 are A groove 8 is fixedly provided, and the two grooves 8 are symmetrically distributed. A bidirectional threaded rod 31 is rotatably provided inside each groove 8. One end of the bidirectional threaded rod 31 passes through the groove 8 and extends outward to be connected to the output end of the second motor 22. Both ends of the outer wall of the bidirectional threaded rod 31 are threadedly sleeved with movable blocks 18. The front faces of the two movable blocks 18 are fixedly provided with L-shaped clamping plates 19. The two L-shaped clamping plates 19 are symmetrically distributed, and arc grooves are provided at the opposite ends of the two L-shaped clamping plates 19. A through-hole 17 is penetrated on the top surface of the groove 8. The movable block 18 is slidably connected with the through-hole 17, and the detection level is The end of the platform 1 close to the moving block 5 is fixedly connected to a support plate 6, and a first hydraulic cylinder 7 is provided on the top surface of the support plate 6. The output end of the first hydraulic cylinder 7 is fixedly connected to the groove 8 on the top surface of the moving block 5. The output end of the second motor 22 drives the bidirectional threaded rod 31 to rotate. The rotation of the bidirectional threaded rod 31 drives the two movable blocks 18 thereon to move relative to each other along the horizontal direction of the through opening 17. The relative movement of the two movable blocks 18 drives the two L-shaped clamping plates 19 to move relative to each other. The two ends of the wire harness can be clamped and fixed by the two groups of L-shaped clamping plates 19. After the wire harness is clamped and fixed, the first The output end of the hydraulic cylinder 7 drives the groove 8 on the top surface of the moving block 5 to move in the direction of the first hydraulic cylinder 7. The movement of the groove 8 drives the moving block 5 on its bottom surface to move in the horizontal direction of the guide rod 3, thereby realizing the tension test of the wire harness. The tension detection component also includes a displacement sensor and a force sensor. The displacement sensor and the force sensor can monitor the deformation and stress of the wire harness in real time, and transmit the data to the control module for processing. The image acquisition device can record the breaking point position and morphological changes of the wire harness under the action of tension, providing a basis for subsequent analysis and improvement.

[0022] Reference Figure 3-Figure 4The wear resistance detection component includes a vertical plate 20, and the vertical plates 20 are provided with two. The two vertical plates 20 are fixedly arranged on the opposite sides of the two grooves 8. The output end of the first motor 21 is provided on the opposite sides of the two vertical plates 20. The output end of the first motor 21 passes through the vertical plate 20 and is extended outwardly to be sleeved with a first gear 23. The opposite sides of the two vertical plates 20 are connected with sleeves 25 through bearings. The outer wall of the sleeve 25 is fixedly sleeved with a second gear 24. The second gear 24 is meshed and connected with the first gear 23. The outer wall of the sleeve 25 is symmetrically fixed with two L-shaped brackets 26. The L-shaped bracket 26 is threaded with a second threaded rod 27. The opposite ends of the two second threaded rods 27 are connected with arc clamping plates 28 through bearings. The two second threaded rods 27 are fixed with a knob 29 at the opposite ends. By turning the knob 29, the rotation of the knob 29 drives the second threaded rod 27 and the arc-shaped clamping plate 28 to move. By adjusting the positions of the two arc-shaped clamping plates 28, the wiring harness can be clamped and fixed. After the two sets of arc-shaped clamping plates 28 clamp and fix the two ends of the wiring harness, the first gear 23 is driven to rotate by the output end of the first motor 21. The rotation of the first gear 23 drives the second gear 24 to rotate. The rotation of the second gear 24 drives the sleeve 25 to rotate. The rotation of the sleeve 25 drives the L-shaped bracket 26, the arc-shaped clamping plate 28 and the wiring harness to rotate, and cooperates with the grinding wheel 16 to realize the wear resistance detection of the external insulation skin of the wiring harness.

[0023] Reference Figure 2 A side wall of the detection platform 1 is fixedly connected to a side frame 9, a first threaded rod 11 is provided inside the side frame 9, a slider 12 is threadedly sleeved on the outer wall of the first threaded rod 11, a sliding opening 10 is penetrated on both side walls of the side frame 9, the slider 12 is slidably connected to the sliding opening 10, one end of the first threaded rod 11 passes through the side frame 9, and extends outward to be connected to the output end of the third motor 30, a bracket 13 is fixedly provided on the top surface of the slider 12, a second hydraulic cylinder 14 is provided on the top surface of the bracket 13, the output end of the second hydraulic cylinder 14 passes through the bracket 13, and extends downward to be connected to a fixing bracket 15, the inside of the fixing bracket 15 A grinding wheel 16 is fixedly provided, and the first threaded rod 11 is driven to rotate by the output end of the third motor 30. The rotation of the first threaded rod 11 drives the slider 12 to move along the horizontal direction of the slide 10. The movement of the slider 12 drives the bracket 13 to move. The movement of the bracket 13 drives the second hydraulic cylinder 14, the fixed frame 15 and the grinding wheel 16 to move. When the bracket 13 moves to a designated positioning position, the fixed frame 15 and the grinding wheel 16 are driven to move vertically downward by the output end of the second hydraulic cylinder 14, so that the wear resistance of different positions of the wiring harness can be detected, which has a wide range of uses and high flexibility.

[0024] Working principle: When in use, the output end of the second motor 22 drives the bidirectional threaded rod 31 to rotate, and the rotation of the bidirectional threaded rod 31 drives the two movable blocks 18 thereon to move relative to each other along the horizontal direction of the through-port 17, and the relative movement of the two movable blocks 18 drives the two L-shaped clamps 19 to move relative to each other. The two ends of the wiring harness can be clamped and fixed by the two groups of L-shaped clamps 19. After the wiring harness is clamped and fixed, the output end of the first hydraulic cylinder 7 drives the groove 8 on the top surface of the movable block 5 to move toward the direction of the first hydraulic cylinder 7, and the movement of the groove 8 drives the movable block 5 on the bottom surface to move along the horizontal direction of the guide rod 3, thereby realizing the tension test of the wiring harness, and the tension detection component also includes a displacement sensor and a force sensor, which can monitor the deformation and stress of the wiring harness in real time, and transmit the data to the control module for processing, and the image acquisition device can record the breaking point position and morphological changes of the wiring harness under the action of tension, providing a basis for subsequent analysis and improvement;

[0025] The output end of the third motor 30 drives the first threaded rod 11 to rotate, and the rotation of the first threaded rod 11 drives the slider 12 to move along the horizontal direction of the slide 10, and the movement of the slider 12 drives the bracket 13 to move, and the movement of the bracket 13 drives the second hydraulic cylinder 14, the fixed frame 15 and the grinding wheel 16 to move. When the bracket 13 moves to a designated position, the output end of the second hydraulic cylinder 14 drives the fixed frame 15 and the grinding wheel 16 to move vertically downward until the grinding wheel 16 contacts the outer surface of the wiring harness, and then the knob 29 is turned, and the rotation of the knob 29 drives The second threaded rod 27 and the arc-shaped clamping plate 28 move, and the wiring harness can be clamped and fixed by adjusting the positions of the two arc-shaped clamping plates 28. After the two sets of arc-shaped clamping plates 28 clamp and fix the two ends of the wiring harness, the first gear 23 is driven to rotate by the output end of the first motor 21. The rotation of the first gear 23 drives the second gear 24 to rotate. The rotation of the second gear 24 drives the sleeve 25 to rotate. The rotation of the sleeve 25 drives the L-shaped bracket 26, the arc-shaped clamping plate 28 and the wiring harness to rotate, and cooperates with the grinding wheel 16 to realize the wear resistance detection of the external insulation skin of the wiring harness.

[0026] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for detecting performance of an automobile wiring harness, comprising a detection platform (1), characterized in that: The detection platform (1) is provided with a tension detection component and a wear resistance detection component; The tension detection assembly comprises a connecting plate (2), wherein four connecting plates (2) are provided and are respectively arranged at the four corners of the top surface of the detection platform (1), a guide rod (3) is provided between two opposite connecting plates (2), and the two ends of the outer wall of the guide rod (3) are respectively sleeved with a fixed block (4) and a movable block (5), and the top surfaces of the two fixed blocks (4) and the top surfaces of the two movable blocks (5) are respectively provided with grooves (8), and the two grooves (8) are symmetrically distributed, and a bidirectional threaded rod (31) is provided inside each of the grooves (8), one end of the bidirectional threaded rod (31) passes through the groove (8) and extends outward to be connected to the output end of the second motor (22), and the two ends of the outer wall of the bidirectional threaded rod (31) are sleeved with movable blocks (18), and the front faces of the two movable blocks (18) are provided with L-shaped clamping plates (19), and the two L-shaped clamping plates (19) are symmetrically distributed, and arc grooves are provided at the opposite ends of the two L-shaped clamping plates (19); The wear resistance detection component comprises a vertical plate (20), wherein two vertical plates (20) are provided, and the two vertical plates (20) are arranged on opposite sides of the two grooves (8), and the output end of the first motor (21) is provided on the opposite sides of the two vertical plates (20), and the output end of the first motor (21) passes through the vertical plate (20) and extends outward to be sleeved with a first gear (23), and the opposite sides of the two vertical plates (20) are connected to a sleeve (25) through a bearing, and the outer wall of the sleeve (25) is sleeved with a second gear (24), and the second gear (24) is meshed and connected with the first gear (23).

2. The method for detecting performance of an automobile wiring harness according to claim 1, characterized in that: A through opening (17) is provided through the top surface of the groove (8), and the movable block (18) is slidably connected to the through opening (17).

3. The method for detecting performance of an automobile wiring harness according to claim 1, characterized in that: The end of the detection platform (1) close to the moving block (5) is connected to a support plate (6), the top surface of the support plate (6) is provided with a first hydraulic cylinder (7), and the output end of the first hydraulic cylinder (7) is connected to a groove (8) on the top surface of the moving block (5).

4. The method for detecting performance of an automobile wiring harness according to claim 1, characterized in that: The outer wall of the sleeve (25) is symmetrically provided with two L-shaped brackets (26), and a second threaded rod (27) is passed through the L-shaped bracket (26). The opposite ends of the two second threaded rods (27) are connected to an arc-shaped clamping plate (28) through a bearing, and the opposite ends of the two second threaded rods (27) are provided with a knob (29).

5. The method for detecting performance of an automobile wiring harness according to claim 1, characterized in that: A side wall of the detection platform (1) is connected to a side frame (9), a first threaded rod (11) is provided inside the side frame (9), a sliding block (12) is sleeved on the outer wall of the first threaded rod (11), sliding openings (10) are provided on both side walls of the side frame (9), the sliding block (12) is slidably connected to the sliding openings (10), one end of the first threaded rod (11) passes through the side frame (9) and extends outwardly to be connected to the output end of a third motor (30), a bracket (13) is provided on the top surface of the sliding block (12), a second hydraulic cylinder (14) is provided on the top surface of the bracket (13), the output end of the second hydraulic cylinder (14) passes through the bracket (13) and extends downwardly to be connected to a fixing frame (15), a grinding wheel (16) is provided inside the fixing frame (15).

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