Testing device for automobile wire harness

Abstract

The utility model discloses a testing device for an automobile wire harness, and particularly relates to the technical field of automobile wire harness testing, which comprises a working table, a fixed arm is fixed in the middle of one side of the working table, the top end of the fixed arm is connected with a hydraulic cylinder, and the bottom end of the hydraulic cylinder is provided with a pressure sensor facing the working table. According to the utility model, two groups of first positioning plates, second positioning plates, wire placing grooves and elastic reset assemblies are arranged, the first positioning plates and the second positioning plates can be separated by pulling the pull rings, so that wire harness terminals can be arranged in the wire placing grooves between the first positioning plates and the second positioning plates in a penetrating manner, and the first positioning plates and the second positioning plates can be reset and combined by loosening the pull rings; therefore, a cable at the end part of the wire harness can be bound in the wire placing groove, and a terminal at the end part of the wire harness is limited and blocked outside the first positioning plate and the second positioning plate, so that the limiting and fixing of the terminal of the wire harness can be quickly and effectively realized, the operation is simple and convenient, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile wiring harness testing, in particular to a testing device for an automobile wiring harness. Background Art

[0002] The automotive wiring harness is the main network of the automotive circuit. Without the wiring harness, there would be no automotive circuit. The wiring harness refers to the contact terminal (connector) made of copper material, which is crimped with the wires and cables, and then plastic-pressed with an insulator or an additional metal shell, etc., to form a component that connects the circuit. It is widely used in automobiles, household appliances, computers, communication equipment, and various electronic instruments and meters.

[0003] At present, after the automobile wiring harness is manufactured, in order to ensure the quality, it is usually necessary to test the wiring harness. The most common test is to detect the tensile performance of the wiring harness and the wiring harness terminal. During the test, the two ends of the wiring harness need to be fixed first. Since the number of cables in the wiring harness is usually large, one end is often connected to a main terminal, and the other end has multiple branch terminals scattered and arranged in an array. Therefore, for the terminal part with a large number of arrangements, it is often difficult to quickly and effectively limit and fix it, affecting the test efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a testing device for automobile wiring harnesses. By setting two groups of first positioning plates, second positioning plates, wire grooves and elastic reset components, the first positioning plate and the second positioning plate can be separated by pulling a pull ring so that the wiring harness terminal can be inserted into the wire grooves arranged therebetween, and the first positioning plate and the second positioning plate can be reset and merged by loosening the pull ring, so that the cables at the ends of the wiring harness can be bound in the wire grooves, while the terminals at the ends of the wiring harness are restricted and blocked outside the first positioning plate and the second positioning plate, thereby quickly and effectively realizing the limiting fixation of the wiring harness terminals, the operation is simple and convenient, and the work efficiency is greatly improved, so as to solve the above-mentioned shortcomings in the technology.

[0005] In order to achieve the above object, the utility model provides the following technical solution: a testing device for automobile wiring harness, comprising:

[0006] A workbench, a fixed arm is fixed in the middle of one side of the workbench, a hydraulic cylinder is connected to the top of the fixed arm, a pressure sensor facing the workbench is arranged at the bottom of the hydraulic cylinder, and a draw hook is connected to the bottom of the pressure sensor;

[0007] A sliding cavity, wherein the sliding cavity is opened on the top side of the workbench, and movable blocks that can move toward or away from each other are symmetrically arranged at both ends of the interior of the sliding cavity, and the top ends of the two movable blocks extend outside the sliding cavity and are connected to the support platform;

[0008] A first positioning plate is fixed on the top of the support platform, a wire groove is opened in the middle of the top side of the first positioning plate, and a second positioning plate is installed above the first positioning plate, and an elastic reset component is provided between the second positioning plate and the support platform.

[0009] Preferably, the interior of the sliding cavity is rotatably connected to a bidirectional screw via a bearing, the two movable blocks are respectively connected to the two ends of the bidirectional screw via threads, and one end of the bidirectional screw extends outside the workbench and is connected to a motor.

[0010] Preferably, the elastic reset assembly includes a fixing plate symmetrically fixed at both ends of the outer side of the second positioning plate, the side wall of the fixing plate is provided with a guide hole, the inside of the guide hole is penetrated by a guide rod, the bottom end of the guide rod is fixedly connected to the support platform, and a spring is sleeved on the outside of the guide rod, and the two ends of the spring are respectively fixedly connected to the fixing plate and the support platform.

[0011] Preferably, a circular baffle is fixed to the top end of the guide rod, and the diameter of the circular baffle is larger than the diameter of the guide hole.

[0012] Preferably, a pull ring is fixed on the top of the first positioning plate.

[0013] Preferably, both ends of the first positioning plate are provided with threaded channels facing the wire groove, a threaded rod is passed through the interior of the threaded channel, one end of the threaded rod extends into the wire groove and is movably connected to a stopper through a bearing, and a fixing handle is fixed to the other end of the threaded rod.

[0014] Preferably, a rubber block is provided at one end of the stopper relative to the threaded rod.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] By providing two sets of first positioning plates, second positioning plates, wire grooves and elastic reset components, the first positioning plate and the second positioning plate can be separated by pulling the pull ring, so that the wiring harness terminal can be inserted into the wire groove between them, and the first positioning plate and the second positioning plate can be reset and merged by loosening the pull ring, so that the cables at the ends of the wiring harness can be bound in the wire groove, and the terminals at the ends of the wiring harness are restricted and blocked outside the first positioning plate and the second positioning plate, so that the wiring harness terminals can be quickly and effectively limited and fixed, the operation is simple and convenient, and the work efficiency is greatly improved;

[0017] By arranging structures such as a fixing handle, a threaded rod and a stopper on the first positioning plate, after the end of the wiring harness is constrained between the first positioning plate and the second positioning plate, the stopper can be controlled to slide in the wire groove, so that the distance between the two stops can be adjusted according to the number of cables to further constrain the cables in the wire groove, thereby preventing the cables from driving the wiring harness terminals to move freely along the wire groove, thereby greatly improving the stability during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the sliding cavity of the utility model;

[0021] Figure 3 This is a structural schematic diagram of the second positioning plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the first positioning plate and the stopper of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the first positioning plate of the utility model.

[0024] Description of reference numerals:

[0025] 1. Workbench; 2. Fixed arm; 3. Hydraulic cylinder; 4. Pressure sensor; 5. Draw hook; 6. Sliding cavity; 7. Bidirectional screw; 8. Motor; 9. Movable block; 10. Support table; 11. First positioning plate; 12. Wire groove; 13. Second positioning plate; 14. Pull ring; 15. Fixed plate; 16. Guide hole; 17. Guide rod; 18. Spring; 19. Threaded channel; 20. Threaded rod; 21. Fixed handle; 22. Stop block; 23. Rubber block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-Figure 3 A test device for an automobile wiring harness is shown, comprising:

[0028] A workbench 1, a fixed arm 2 is fixed in the middle of one side of the workbench 1, a hydraulic cylinder 3 is connected to the top of the fixed arm 2, a pressure sensor 4 facing the workbench 1 is arranged at the bottom of the hydraulic cylinder 3, and a draw hook 5 is connected to the bottom of the pressure sensor 4;

[0029] The sliding cavity 6 is provided on the top side of the workbench 1, and movable blocks 9 that can move toward or away from each other are symmetrically arranged at both ends of the interior of the sliding cavity 6, and the top ends of the two movable blocks 9 extend outside the sliding cavity 6 and are connected to a support platform 10;

[0030] A bidirectional screw 7 is rotatably connected to the interior of the sliding cavity 6 via a bearing, and two movable blocks 9 are respectively screwed to the two ends of the bidirectional screw 7 through threads. One end of the bidirectional screw 7 extends to the outside of the workbench 1 and is connected to a motor 8.

[0031] The bidirectional screw 7 is driven to rotate by the motor 8. Since the outer wall of the bidirectional screw 7 is provided with two spiral patterns in opposite directions, the two movable blocks 9 can be driven to move toward or away from each other. The movable block 9 can drive the support table 10 to move, so that the support table 10 drives the first positioning plate 11 to move, so that the distance between the two groups of first positioning plates 11 can be adjusted according to the length of the wiring harness.

[0032] A first positioning plate 11 is fixed on the top of the support platform 10 , a wire groove 12 is opened in the middle of the top side of the first positioning plate 11 , and a second positioning plate 13 is installed above the first positioning plate 11 , and an elastic reset component is provided between the second positioning plate 13 and the support platform 10 .

[0033] The elastic reset assembly includes a fixing plate 15 symmetrically fixed at both ends of the outer side of the second positioning plate 13, a guide hole 16 is opened on the side wall of the fixing plate 15, a guide rod 17 is connected through the inside of the guide hole 16, the bottom end of the guide rod 17 is fixedly connected to the support platform 10, and a spring 18 is sleeved on the outside of the guide rod 17, and the two ends of the spring 18 are respectively fixedly connected to the fixing plate 15 and the support platform 10.

[0034] A pull ring 14 is fixed on the top of the first positioning plate 11 .

[0035] After the distance between the two first positioning plates 11 is adjusted, the terminals at both ends of the wiring harness can be respectively restricted on the two first positioning plates 11, specifically:

[0036] By pulling the pull ring 14, the pull ring 14 can drive the second positioning plate 13 to leave the first positioning plate 11, and at the same time, the second positioning plate 13 drives the fixing plate 15 to slide along the guide rod 17, so that the fixing plate 15 pulls the spring 18 to extend, thereby increasing the gap between the first positioning plate 11 and the second positioning plate 13, and then the wiring harness terminal can be passed through the gap, and the arranged cables can be placed in the wire groove 12 on the first positioning plate 11, and then the pull ring 14 is released. Under the contraction of multiple springs 18, the second positioning plate 13 can be quickly reset and merged with the first positioning plate 11, so that the cables at the ends of the wiring harness can be bound in the wire groove 12, and the terminals at the ends of the wiring harness are restricted and blocked outside the first positioning plate 11 and the second positioning plate 13, so that the wiring harness terminals can be quickly and effectively limited and fixed, and the operation is simple and convenient, which greatly improves the work efficiency;

[0037] The middle part of the wire harness can be placed on the hook 5, and the pressure sensor 4 can be driven to rise by the hydraulic cylinder 3. Then the pressure sensor 4 can pull the wire harness through the hook 5 to test the tension between the wire harness and the wire harness terminal, and the tension value can be detected by the pressure sensor 4.

[0038] A circular baffle is fixed on the top of the guide rod 17 , and the diameter of the circular baffle is greater than the diameter of the guide hole 16 .

[0039] The circular baffle plate can prevent the fixing plate 15 from being separated from the top end of the guide rod 17 .

[0040] The utility model provides Figure 1 , Figure 4 and Figure 5 In the test device for an automobile wiring harness shown in the figure, both ends of the first positioning plate 11 are provided with threaded channels 19 facing the wire groove 12, a threaded rod 20 is passed through the interior of the threaded channel 19, one end of the threaded rod 20 extends into the wire groove 12 and is movably connected to a stopper 22 through a bearing, and a fixing handle 21 is fixed to the other end of the threaded rod 20.

[0041] When the end of the wiring harness is bound between the first positioning plate 11 and the second positioning plate 13, the fixing handles 21 on both sides can be easily rotated so that the fixing handles 21 drive the threaded rod 20 to move in the threaded channel 19, and then the threaded rod 20 can drive the block 22 to slide in the wire groove 12, so that the distance between the two blocks 22 can be controlled. According to the number of cables, the block 22 can better bind the cables in the wire groove 12, preventing the cables from driving the wiring harness terminals to move freely along the wire groove 12, thereby greatly improving the stability during testing.

[0042] A rubber block 23 is provided at one end of the stopper 22 relative to the threaded rod 20. The rubber block 23 can prevent the stopper 22 from causing wear to the cable.

[0043] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A testing device for automobile wiring harness, characterized in that: include: A workbench (1), wherein a fixed arm (2) is fixed in the middle of one side of the workbench (1), the top end of the fixed arm (2) is connected to a hydraulic cylinder (3), the bottom end of the hydraulic cylinder (3) is provided with a pressure sensor (4) facing the workbench (1), and the bottom end of the pressure sensor (4) is connected to a draw hook (5); A sliding cavity (6), wherein the sliding cavity (6) is opened on the top side of the workbench (1), and movable blocks (9) that can move toward or away from each other are symmetrically arranged at both ends of the interior of the sliding cavity (6), and the top ends of the two movable blocks (9) extend outside the sliding cavity (6) and are connected to a support platform (10); A first positioning plate (11) is fixed on the top of the support platform (10), a wire groove (12) is provided in the middle of the top side of the first positioning plate (11), and a second positioning plate (13) is installed above the first positioning plate (11), and an elastic reset component is provided between the second positioning plate (13) and the support platform (10).

2. The testing device for automobile wiring harness according to claim 1, characterized in that: The interior of the sliding cavity (6) is rotatably connected to a bidirectional screw (7) via a bearing, and the two movable blocks (9) are respectively screwed to the two ends of the bidirectional screw (7) via threads, and one end of the bidirectional screw (7) extends to the outside of the workbench (1) and is connected to a motor (8).

3. The testing device for automobile wiring harness according to claim 1, characterized in that: The elastic reset assembly comprises a fixing plate (15) symmetrically fixed at two ends of the outer side of the second positioning plate (13); a guide hole (16) is opened on the side wall of the fixing plate (15); a guide rod (17) is connected to the inside of the guide hole (16); the bottom end of the guide rod (17) is fixedly connected to the support platform (10); and a spring (18) is sleeved on the outside of the guide rod (17); and the two ends of the spring (18) are respectively fixedly connected to the fixing plate (15) and the support platform (10).

4. The testing device for automobile wiring harness according to claim 3, characterized in that: A circular baffle is fixed on the top end of the guide rod (17), and the diameter of the circular baffle is greater than the diameter of the guide hole (16).

5. The testing device for automobile wiring harness according to claim 1, characterized in that: A pull ring (14) is fixed on the top of the first positioning plate (11).

6. The testing device for automobile wiring harness according to claim 1, characterized in that: Both ends of the first positioning plate (11) are provided with a threaded channel (19) facing the wire groove (12), a threaded rod (20) is passed through the interior of the threaded channel (19), one end of the threaded rod (20) extends into the wire groove (12) and is movably connected to a stopper (22) via a bearing, and a fixing handle (21) is fixed to the other end of the threaded rod (20).

7. The testing device for automobile wiring harness according to claim 6, characterized in that: A rubber block (23) is provided at one end of the stopper (22) opposite to the threaded rod (20).

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