Wire harness conduction testing device

Abstract

The utility model discloses a wire harness conduction test device, comprising a test bench, the top of the test bench is provided with a test component, and the top of the test bench is provided with a limiting component. The testing part comprises a fixed block, a sliding groove formed in the bottom of the fixed block, a sliding block arranged in the sliding groove, an electric telescopic rod fixedly connected with one side of the sliding block, a transverse block fixedly connected with the bottom of the sliding block, moving grooves formed in the two sides of the bottom of the transverse block respectively, moving blocks arranged in the moving grooves, and vertical rods fixedly connected with the bottoms of the moving blocks. According to the utility model, through the arrangement of the test bench and the test component, the problems that when an existing wire harness conduction test device is used, although the conduction test can be carried out on the wire harness, the wire harness is easy to crush and damage during the test, the wire harness is damaged, the yield of the wire harness is influenced, and the test efficiency is improved are solved. And therefore, the practicability is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness continuity testing, in particular to a wire harness continuity testing device. Background Art

[0002] A wiring harness is a component that is formed by crimping contact terminals made of copper material with wires and cables, and then plastic-pressing an insulator or adding a metal shell on the outside to form a connecting circuit. The wiring harness industry chain includes wires and cables, connectors, processing equipment, wiring harness manufacturing and downstream application industries. Wire harnesses are widely used and can be used in automobiles, home appliances, computers and communications equipment, and various electronic instruments and meters. In order to ensure that the wiring harness can be used normally, a continuity test device is required to perform a continuity test.

[0003] Existing patent CN215449552U discloses a wiring harness continuity test device, including a wiring harness box body and a test shell, wherein a display screen is fixedly installed on the surface of the wiring harness box body, a first wire and a second wire are fixedly installed on one side of the wiring harness box body, and a battery slot box is fixedly connected to the inner bottom wall of the test shell. The utility model uses a display screen, a jumper and an insulating contact block so that after the entire wiring harness is arranged, it only needs to be matched with a positive iron sheet and a negative iron sheet, and then after power is turned on, it can be judged whether it is qualified through the display screen, thereby making the overall test simpler. In addition, by setting a test bulb and then matching it with a third wire and a fourth wire, the entire test device can be further checked to avoid a dead battery or an overall short circuit. That is, if the test bulb lights up, it means that the entire device is fine. When the test bulb does not light up, the inaccurate test result caused by the device failure can be first eliminated.

[0004] Based on the search of the above patents and in combination with the wire harness conductivity test device in the prior art, it was found that although the above wire harness conductivity test device can perform a conductivity test on the wire harness when in use, it is easy to crush the wire harness during the test, causing damage to the wire harness, affecting the yield of the wire harness, and thus reducing its practicality. Utility Model Content

[0005] The purpose of the present utility model is to provide a wire harness continuity test device to solve the problem that the existing wire harness continuity test device proposed in the above background technology can perform a continuity test on the wire harness when in use, but it is easy to crush the wire harness during the test, causing damage to the wire harness, affecting the yield of the wire harness, and thus reducing the practicality.

[0006] To achieve the above object, the present invention provides the following technical solution: a wiring harness continuity test device, comprising a test bench, a test component is provided on the top of the test bench, and a limit component is provided on the top of the test bench;

[0007] The testing component includes a fixed block, a sliding groove opened at the bottom of the fixed block, a slider arranged in the sliding groove, an electric telescopic rod fixedly connected to one side of the slider, a horizontal block fixedly connected to the bottom of the slider, movable grooves respectively opened on both sides of the bottom of the horizontal block, a movable block arranged in the movable groove, a vertical rod fixedly connected to the bottom of the movable block, a groove opened at the bottom of the vertical rod, a push rod arranged in the groove, a conductive sheet fixedly connected to the bottom of the push rod, a first spring fixedly connected to the top of the push rod, a multimeter fixedly connected to the bottom of the horizontal block, and probes respectively connected to both sides of the multimeter, wherein the probes are fixedly connected to the conductive sheet.

[0008] Preferably, the limiting component includes a plurality of U-shaped boxes evenly arranged on the top of the test bench, sliding openings respectively opened on both sides of the U-shaped boxes, a guide rod arranged in the sliding opening, a positioning block fixedly connected to one end of the guide rod, a clamping opening opened on one side of the positioning block, and a second spring sleeved on the outside of the guide rod, and the guide rod is slidably connected to the sliding opening.

[0009] Preferably, a bidirectional screw is provided in the movable groove, one end of the bidirectional screw is fixedly connected to a motor, the bidirectional screw is threadedly connected to the movable block, and the bidirectional screw is rotatably connected to the transverse block.

[0010] Preferably, a bracket is fixedly connected to the top of the test bench, a cylinder is installed on the top of the bracket, and an output end of the cylinder is fixedly connected to a fixed block.

[0011] Preferably, both sides of the top of the fixing block are fixedly connected with limiting rods respectively, and the limiting rods pass through the bracket and are slidably connected to the bracket.

[0012] Preferably, guide grooves are respectively provided on both sides of the bottom of the U-shaped box, the bottom of the positioning block is fixedly connected to a guide block, one side of the guide block is fixedly connected to a third spring, the other end of the third spring is fixedly connected to the inner wall of the guide groove, and the guide block is slidably connected to the guide groove.

[0013] Preferably, a rotation-stop groove is provided at the top of the push rod, a rotation-stop rod is fixedly connected to the top of the groove, and the rotation-stop rod is slidably connected to the rotation-stop groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By setting up a test bench and test components, multiple wiring harnesses can be fixed to the top of the test bench. The movement of the two moving blocks can drive the conductive sheet to move, and the conductive sheet can contact both ends of the wiring harness. The wiring harness can be tested for continuity using a multimeter. The wiring harnesses of different lengths can be tested for continuity, which can improve the scope of application. The electric telescopic rod can drive the horizontal block to move back and forth, and then multiple wiring harnesses can be tested for continuity. The wiring harnesses can be tested for continuity in batches, which can improve the test efficiency. The elasticity of the first spring can be used to provide buffer protection for the wiring harness to prevent it from being crushed, thereby greatly improving the practicality and efficiency of the device.

[0016] 2. By setting a limiting component, the wiring harness can be squeezed between the two positioning blocks and squeezed into the two clamping openings. The movement of the positioning block can drive the second spring and the third spring to deform. The thrust generated by the deformation of the second spring and the third spring can push the positioning block to clamp and fix the wiring harness. At the same time, it can prevent the wiring harness from being damaged by clamping and shifting, which will affect the conduction test, thereby further improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure provided by the utility model;

[0018] Figure 2 A left side view provided for the present utility model;

[0019] Figure 3 The utility model provides Figure 2 A three-dimensional cross-section at AA in the middle;

[0020] Figure 4 The utility model provides Figure 3 Enlarged view of point C in the middle;

[0021] Figure 5 A front view provided for the present utility model;

[0022] Figure 6 The utility model provides Figure 5 A three-dimensional cross-section of the middle BB;

[0023] Figure 7 The utility model provides Figure 6 Enlarged view of point D in the middle.

[0024] In the figure: 1. test bench; 21. fixed block; 22. slide; 23. slider; 24. electric telescopic rod; 25. horizontal block; 26. moving groove; 27. moving block; 28. vertical rod; 29. ​​groove; 30. push rod; 31. conductive sheet; 32. first spring; 33. multimeter; 34. probe; 41. U-shaped box; 42. sliding mouth; 43. guide rod; 44. positioning block; 45. clamping mouth; 46. second spring; 51. bidirectional screw; 52. motor; 61. bracket; 62. cylinder; 71. limit rod; 81. guide groove; 82. guide block; 83. third spring; 91. anti-rotation groove; 92. anti-rotation rod. DETAILED DESCRIPTION

[0025] 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 embodiments described 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.

[0026] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 as well as Figure 6The utility model provides a technical solution: a wiring harness continuity test device, including a test bench 1, a test component is provided on the top of the test bench 1, a limit component is provided on the top of the test bench 1, the test component includes a fixed block 21, a slide groove 22 provided at the bottom of the fixed block 21, a slider 23 provided in the slide groove 22, an electric telescopic rod 24 fixedly connected to one side of the slider 23, a horizontal block 25 fixedly connected to the bottom of the slider 23, movable grooves 26 respectively provided on both sides of the bottom of the horizontal block 25, a movable block 27 provided in the movable groove 26, a vertical rod 28 fixedly connected to the bottom of the movable block 27, a groove 29 provided at the bottom of the vertical rod 28, a push rod 30 provided in the groove 29, and a guide rod fixedly connected to the bottom of the push rod 30. An electric sheet 31, a first spring 32 fixedly connected to the top of the push rod 30, a multimeter 33 fixedly connected to the bottom of the transverse block 25, and probes 34 respectively connected to both sides of the multimeter 33, the probes 34 are fixedly connected to the conductive sheet 31, the slider 23 is slidably connected to the slide groove 22, the moving block 27 is slidably connected to the moving groove 26, the push rod 30 is slidably connected to the groove 29, the two conductive sheets 31 can contact the two ends of the wiring harness, the first spring 32 is deformed, the wiring harness can be protected to prevent the wiring harness from being crushed, the wiring harness can be tested for conductivity using the multimeter 33, and the movement of the moving block 27 can drive the two conductive sheets 31 to move, which is convenient for testing wiring harnesses of different lengths, and the electric telescopic rod 24 can drive The slider 23 moves back and forth, thereby driving the conductive sheet 31 to move, which is convenient for testing multiple wiring harnesses and can realize batch testing. A bidirectional screw 51 is provided in the moving groove 26, and one end of the bidirectional screw 51 is fixedly connected to a motor 52. The bidirectional screw 51 is screwed to the moving block 27, and the bidirectional screw 51 is rotatably connected to the transverse block 25. The motor 52 can control the rotation of the bidirectional screw 51, thereby making the two moving blocks 27 move in opposite directions, and thus the distance between the two conductive sheets 31 can be quickly adjusted, which is convenient for conducting continuity tests on wiring harnesses of different lengths. A bracket 61 is fixedly connected to the top of the test bench 1, and a cylinder 62 is installed on the top of the bracket 61. The output end of the cylinder 62 is fixedly connected to the fixed block 21, and the cylinder 62 It can drive the fixed block 21 to move vertically, and then drive the conductive sheet 31 to move vertically, which can facilitate the conduction test of different wiring harnesses. The two sides of the top of the fixed block 21 are fixedly connected to the limit rods 71, and the limit rods 71 ​​pass through the bracket 61 and are slidably connected to the bracket 61. The limit rods 71 ​​can move vertically synchronously with the fixed block 21, and can guide the movement of the fixed block 21 to prevent the fixed block 21 from tilting. A stop groove 91 is provided on the top of the push rod 30, and a stop rod 92 is fixedly connected to the top of the groove 29. The stop rod 92 is slidably connected to the stop groove 91. The stop rod 92 can slide in the stop groove 91, which can prevent the push rod 30 from rotating, and thus prevent the first spring 32 from being damaged.

[0027] See also Figure 1 、 Figure 5 、 Figure 6 as well as Figure 7 The limiting components include a plurality of U-shaped boxes 41 evenly arranged on the top of the test bench 1, sliding openings 42 respectively opened on both sides of the U-shaped box 41, a guide rod 43 provided in the sliding opening 42, a positioning block 44 fixedly connected to one end of the guide rod 43, a clamping opening 45 opened on one side of the positioning block 44, and a second spring 46 sleeved on the outside of the guide rod 43. The guide rod 43 is slidably connected to the sliding opening 42, and the two ends of the second spring 46 are respectively fixedly connected to the positioning block 44 and the inner wall of the U-shaped box 41. The wiring harness can be squeezed between the two positioning blocks 44. The movement of the positioning block 44 can drive the deformation of the second spring 46. The guide rod 43 can prevent the second spring 46 from skewing, and the reaction force generated by the deformation of the second spring 46 is utilized. The positioning block 44 can be pushed to fix the wiring harness between the clamping openings 45, which can prevent the wiring harness from shifting and ensure the stability of the wiring harness conduction test. Guide grooves 81 are respectively provided on both sides of the bottom of the U-shaped box 41. The bottom of the positioning block 44 is fixedly connected to a guide block 82, and one side of the guide block 82 is fixedly connected to a third spring 83. The other end of the third spring 83 is fixedly connected to the inner wall of the guide groove 81, and the guide block 82 is slidably connected to the guide groove 81. The positioning block 44 can drive the guide block 82 to move, and the guide block 82 can prevent the positioning block 44 from tilting. The movement of the guide block 82 can squeeze the third spring 83 to deform it, and the reaction force generated by the deformation of the third spring 83 can improve the clamping and fixing performance of the wiring harness.

[0028] Working principle: When working, put the wiring harness between the two positioning blocks 44 in the U-shaped box 41, and the wiring harness can squeeze the positioning block 44 to make it move. The movement of the positioning block 44 can drive the second spring 46 to deform, and at the same time drive the guide block 82 to move. The movement of the guide block 82 can make the third spring 83 deform. The reaction force generated by the deformation of the second spring 46 and the third spring 83 can push the positioning block 44 to fix the wiring harness. Then, multiple wiring harnesses can be fixed to the top of the test bench 1 in turn, and then the cylinder 62 is started. The cylinder 62 can push the fixed block 21 to move downward, and then the conductive sheet 31 can be driven downward. Then the motor 52 is started. The motor 52 can control the rotation of the bidirectional screw 51. The rotation of the bidirectional screw 51 can make the moving block 27 move, and then the To drive the conductive sheet 31 to move, the conductive sheet 31 is moved to above the two ends of the wiring harness. As the conductive sheet 31 moves downward, the conductive sheet 31 can be brought into contact with the wiring harness. At this time, the first spring 32 is deformed. The elasticity of the first spring 32 can be used to protect the wiring harness to prevent it from being crushed. The wiring harness can be tested for conductivity using the multimeter 33. After the test is completed, the cylinder 62 drives the conductive sheet 31 to move upward, and then the electric telescopic rod 24 is started to push the slider 23 to move, thereby driving the conductive sheet 31 to move, so that the conductive sheet 31 moves to above other wiring harnesses, and then the other wiring harnesses can be tested for conductivity. The above is the working process of the entire device, and the contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wiring harness continuity test device, comprising a test bench (1), characterized in that: A testing component is provided on the top of the test bench (1), and a limiting component is provided on the top of the test bench (1); The test component comprises a fixed block (21), a slide groove (22) provided at the bottom of the fixed block (21), a slider (23) provided in the slide groove (22), an electric telescopic rod (24) fixedly connected to one side of the slider (23), a transverse block (25) fixedly connected to the bottom of the slider (23), a movable groove (26) respectively provided at both sides of the bottom of the transverse block (25), a movable block (27) provided in the movable groove (26), a vertical rod (28) fixedly connected to the bottom of the movable block (27), a groove (29) provided at the bottom of the vertical rod (28), a push rod (30) provided in the groove (29), a conductive sheet (31) fixedly connected to the bottom of the push rod (30), a first spring (32) fixedly connected to the top of the push rod (30), a multimeter (33) fixedly connected to the bottom of the transverse block (25), and probes (34) respectively connected to both sides of the multimeter (33), wherein the probes (34) are fixedly connected to the conductive sheet (31).

2. The wiring harness continuity test device according to claim 1, characterized in that: The limiting component comprises a plurality of U-shaped boxes (41) arranged evenly on the top of the test bench (1), sliding openings (42) respectively opened on both sides of the U-shaped boxes (41), a guide rod (43) arranged in the sliding opening (42), a positioning block (44) fixedly connected to one end of the guide rod (43), a clamping opening (45) opened on one side of the positioning block (44), and a second spring (46) sleeved on the outside of the guide rod (43), wherein the guide rod (43) is slidably connected to the sliding opening (42).

3. The wiring harness continuity test device according to claim 1, characterized in that: A bidirectional screw (51) is provided in the movable groove (26), one end of the bidirectional screw (51) is fixedly connected to a motor (52), the bidirectional screw (51) is screwed to the movable block (27), and the bidirectional screw (51) is rotationally connected to the transverse block (25).

4. The wiring harness continuity test device according to claim 1, characterized in that: A bracket (61) is fixedly connected to the top of the test bench (1), a cylinder (62) is installed on the top of the bracket (61), and an output end of the cylinder (62) is fixedly connected to a fixed block (21).

5. The wiring harness continuity test device according to claim 1, characterized in that: Limiting rods (71) are fixedly connected to both sides of the top of the fixed block (21), respectively. The limiting rods (71) pass through the bracket (61) and are slidably connected to the bracket (61).

6. The wiring harness continuity test device according to claim 2, characterized in that: Guide grooves (81) are respectively provided on both sides of the bottom of the U-shaped box (41); a guide block (82) is fixedly connected to the bottom of the positioning block (44); a third spring (83) is fixedly connected to one side of the guide block (82); the other end of the third spring (83) is fixedly connected to the inner wall of the guide groove (81); and the guide block (82) is slidably connected to the guide groove (81).

7. The wiring harness continuity test device according to claim 1, characterized in that: A rotation-stop groove (91) is provided at the top of the push rod (30), a rotation-stop rod (92) is fixedly connected to the top of the groove (29), and the rotation-stop rod (92) is slidably connected to the rotation-stop groove (91).

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