Load applying device for wire harness terminal test

Abstract

The utility model discloses a load applying device for a wire harness terminal test, which comprises a base, a first clamping assembly and a second clamping assembly which are used for clamping and fixing two ends of a wire harness are arranged on the base, and a protection assembly used for clamping the broken wire harness is arranged in the middle of the upper part of the base. A linkage assembly used for driving the protection assembly to operate is arranged between the first clamping assembly and the protection assembly. According to the utility model, the two ends of the wire harness are clamped and fixed through the first clamping assembly and the second clamping assembly, at the moment, the protection assembly is not contacted with the wire harness, the protection assembly is prevented from directly contacting to influence data during wire harness testing, then the first clamping assembly is pulled, and when the wire harness is broken, the force for pulling the first clamping assembly is still at the moment; when the wire harness is broken, the first clamping assembly moves backwards, at the moment, the first clamping assembly drives the protection assembly to clamp and fix the middle section of the wire harness through the linkage assembly, and therefore the situation that the wire harness is broken and swung, and personnel are hurt can be prevented.

Description

Technical Field

[0001] This utility model mainly relates to the field of wire harness terminal testing technology, specifically a load application device for wire harness terminal testing. Background Technology

[0002] A wire harness is an assembly consisting of copper-formed contact terminals (connectors) crimped to wires and cables, then covered with a plastic-molded insulator or an outer metal shell, and bundled together to form a connecting circuit. The wire harness industry chain includes wires and cables, connectors, processing equipment, wire harness manufacturing, and downstream application industries.

[0003] Existing wire harness terminal load tests typically involve applying tension to the wire harness to test the terminals. However, when existing testing devices test the tension of the wire harness, the wire harness may break. In this case, the tension on the wire harness is relatively large, and the broken wire harness may be thrown out, which can easily cause injury to personnel. Utility Model Content

[0004] This utility model provides a solution that is significantly different from existing technologies, addressing the problem that existing technologies are too simplistic. It mainly provides a load application device for testing wire harness terminals, which solves the technical problem mentioned in the background that existing testing devices can easily cause personal injury when the wire harness breaks.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A load application device for testing wire harness terminals includes a base, on which a first clamping component and a second clamping component are provided for clamping and fixing both ends of the wire harness. A protective component for clamping a broken wire harness is provided at the middle of the upper part of the base. A linkage component for driving the protective component to operate is provided between the first clamping component and the protective component.

[0007] Preferably, the first clamping assembly includes a first support platform, which is slidably connected to a base. A hydraulic cylinder is provided on the base, and the telescopic rod of the hydraulic cylinder is connected to the first support platform.

[0008] Preferably, the first clamping assembly includes a motor, which is fixedly mounted on a first support platform. The output end of the motor is provided with a first double-ended screw, which is rotatably connected inside the first support platform. A first clamping block is threaded onto the first double-ended screw.

[0009] Preferably, the protective component includes a second support platform, which is fixedly mounted on the base. A second double-ended screw is rotatably connected to the second support platform, and a tensioning pulley assembly is sleeved between the second double-ended screw and the first double-ended screw.

[0010] Preferably, a movable block is threaded onto the second double-ended screw, and the movable block is slidably connected to the second support platform. A second clamping block is slidably connected to the movable block, and hydraulic oil is provided in the inner cavity of the movable block.

[0011] Preferably, the second clamping assembly includes a third support platform, which is fixedly installed above the base. A third double-ended screw is rotatably connected to the third support platform, and a third clamping block is threaded onto the third double-ended screw. The third clamping block is slidably connected to the third support platform.

[0012] Preferably, the linkage component includes a hydraulic oil tank, which is mounted on the base. A push rod is slidably connected to the hydraulic oil tank, and the end of the push rod away from the hydraulic oil tank is in contact with the first support platform. The inner cavity of the hydraulic oil tank is filled with hydraulic oil, and the inner cavity of the hydraulic oil tank is connected to the inner cavity of the moving block through a connecting pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the first clamping component and the second clamping component clamp and fix both ends of the wire harness. At this time, the protective component does not contact the wire harness, preventing the protective component from directly contacting and affecting the data during wire harness testing. Then, the first clamping component is pulled. When the wire harness breaks, the force pulling the first clamping component is still there, and the first clamping component will move backward. At this time, the first clamping component will drive the protective component through the linkage component to clamp and fix the middle part of the wire harness. This can prevent the wire harness from breaking and swinging, causing injury to personnel.

[0014] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the internal structure of the base of this utility model;

[0018] The diagram is marked as follows:

[0019] 1. Base; 2. First support platform; 3. Second support platform; 4. Third support platform; 5. Hydraulic cylinder; 6. First clamping block; 7. Motor; 8. First double-ended screw; 9. Second double-ended screw; 10. Tensioning pulley assembly; 11. Moving block; 12. Second clamping block; 13. Hydraulic oil tank; 14. Push rod; 15. Connecting pipe; 16. Third clamping block; 17. Third double-ended screw. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Please refer to the appendix carefully. Figures 1-3 A load application device for testing wire harness terminals includes a base 1, on which a first clamping component and a second clamping component are provided for clamping and fixing the two ends of the wire harness. A protective component for clamping a broken wire harness is provided at the middle of the upper part of the base 1. A linkage component for driving the protective component to operate is provided between the first clamping component and the protective component.

[0024] The specific operating procedure of this utility is as follows: The two ends of the wire harness are clamped and fixed by the first clamping component and the second clamping component respectively. At this time, the protective component is not in contact with the wire harness. A pulling force is applied to the first clamping component. The first clamping component applies force to the wire harness for testing. When the wire harness breaks, the force pulling the first clamping component is still there. The first clamping component will be pulled forward. The first clamping component drives the protective component through the linkage component to immediately clamp and fix the middle section of the wire harness to prevent the wire harness from swinging at the break point (the middle section here refers to any part other than the part clamped by the first clamping component and the second clamping component, because the protective component clamps all parts except the part clamped by the first clamping component and the second clamping component).

[0025] Please refer to Figures 1-3The first clamping assembly includes a first support platform 2, which is slidably connected to a base 1. A hydraulic cylinder 5 is provided on the base 1, and the telescopic rod of the hydraulic cylinder 5 is connected to the first support platform 2. The first clamping assembly includes a motor 7, which is fixedly installed on the first support platform 2. A first double-ended screw 8 is provided at the output end of the motor 7. The first double-ended screw 8 is rotatably connected inside the first support platform 2, and two opposing first clamping blocks 6 are threaded onto the first double-ended screw 8.

[0026] One end of the wire harness is placed above the first support platform 2. The motor 7 is started, and the motor 7 drives the first double-ended screw 8 to rotate. The first clamping block 6 has a threaded hole that matches the first double-ended screw 8. The rotation of the first double-ended screw 8 causes the first clamping blocks 6 on both sides to move inward relative to each other. The first clamping blocks 6 on both sides clamp and fix one end of the wire harness. Then, the hydraulic cylinder 5 is started. The hydraulic cylinder 5 applies a pulling force to the first support platform 2 through the retraction of the telescopic rod, thereby realizing the detection of the pulling of the wire harness. A pressure sensor is installed in the oil circuit of the hydraulic cylinder 5. The pulling force applied to the wire harness terminal is calculated according to the relationship between pressure and piston area. According to the formula F=P×A, as long as the pressure P is accurately measured and the piston area A is known, the pulling force F can be obtained.

[0027] Please refer to Figures 1-3 The protective assembly includes a second support platform 3, which is fixedly mounted on the base 1. A second double-ended screw 9 is rotatably connected to the second support platform 3. A tensioning pulley group 10 is sleeved between the second double-ended screw 9 and the first double-ended screw 8. Two opposing moving blocks 11 are threaded onto the second double-ended screw 9, and the moving blocks 11 are slidably connected to the second support platform 3. A second clamping block 12 is slidably connected to the moving block 11, and hydraulic oil is provided in the inner cavity of the moving block 11.

[0028] When the first double-ended screw 8 rotates, it drives the second double-ended screw 9 to rotate through the tensioning pulley group 10. The moving block 11 has a threaded hole that matches the second double-ended screw 9. When the second double-ended screw 9 rotates, it drives the moving block 11 to move inward. The moving block 11 drives the second clamping block 12 to move to both sides of the wire harness, but does not contact the wire harness.

[0029] Please refer to Figures 1-3 The second clamping assembly includes a third support platform 4, which is fixedly installed above the base 1. A third double-ended screw 17 is rotatably connected to the third support platform 4. Two opposing third clamping blocks 16 are threaded onto the third double-ended screw 17, and the third clamping blocks 16 are slidably connected to the third support platform 4.

[0030] Place the other end of the wire harness on the third support platform 4, and then rotate the third double-ended screw 17. The third clamping block 16 has a threaded hole that matches the third double-ended screw 17. The rotation of the third double-ended screw 17 drives the third clamping block 16 to move inward relative to clamp and fix the wire harness.

[0031] Please refer to Figures 1-3 The linkage component includes a hydraulic oil tank 13, which is mounted on the base 1. A push rod 14 is slidably connected to the hydraulic oil tank 13, and the end of the push rod 14 away from the hydraulic oil tank 13 is in contact with the first support platform 2. The inner cavity of the hydraulic oil tank 13 is filled with hydraulic oil, and the inner cavity of the hydraulic oil tank 13 is connected to the inner cavity of the moving block 11 through a connecting pipe 15.

[0032] When the first support platform 2 moves, the backward movement of the first support platform 2 will push the push rod 14, which will compress into the hydraulic oil tank 13. A piston is provided at one end of the push rod 14 inside the hydraulic oil tank 13. The push rod 14 will squeeze the hydraulic oil inside the hydraulic oil tank 13 into the moving block 11 through the connecting pipe 15. The increase of hydraulic oil inside the moving block 11 will push out the second clamping block 12. The second clamping block 12 is slidably connected to the insertion rod inside the moving block 11, and a piston is also provided at one end. The second clamping block 12 clamps the middle section of the wire harness, which can prevent the wire harness from breaking and swinging.

[0033] Since the wire harness breakage may not be a direct breakage, but rather a tearing, the first clamping component has already shifted. At this point, the first support platform 2 begins to compress the push rod 14, and the push rod 14 forces hydraulic oil into the moving block 11 to push the second clamping block 12 to clamp the wire harness. If the wire harness breaks directly, it may start to swing. However, in the very brief moment of the breakage, the first support platform 2 will move backward, causing the push rod 14 to move backward as well. Part of the wire harness may swing out, but in that instant, the first support platform 2 moves the push rod 14, compressing hydraulic oil and causing the second clamping block 12 to clamp the remaining part of the wire harness. The swinging wire harness will then be re-fixed and unable to swing further, thus providing protection.

[0034] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A load application device for testing wire harness terminals, comprising a base (1), characterized in that: The base (1) is provided with a first clamping component and a second clamping component for clamping and fixing the two ends of the wire harness. A protective component for clamping the broken wire harness is provided at the middle of the upper part of the base (1). A linkage component for driving the protective component to operate is provided between the first clamping component and the protective component.

2. The load application device for testing wire harness terminals according to claim 1, characterized in that: The first clamping assembly includes a first support platform (2), which is slidably connected to a base (1). A hydraulic cylinder (5) is provided on the base (1), and the extension rod of the hydraulic cylinder (5) is connected to the first support platform (2).

3. The load application device for testing wire harness terminals according to claim 2, characterized in that: The first clamping assembly includes a motor (7), which is fixedly mounted on the first support platform (2). The output end of the motor (7) is provided with a first double-ended screw (8), which is rotatably connected inside the first support platform (2). A first clamping block (6) is threaded onto the first double-ended screw (8).

4. The load application device for testing wire harness terminals according to claim 1, characterized in that: The protective assembly includes a second support platform (3), which is fixedly installed on the base (1). A second double-headed screw (9) is rotatably connected to the second support platform (3), and a tensioning pulley assembly (10) is sleeved between the second double-headed screw (9) and the first double-headed screw (8).

5. The load application device for testing wire harness terminals according to claim 4, characterized in that: The second double-ended screw (9) is threaded with a movable block (11), and the movable block (11) is slidably connected to the second support platform (3). The movable block (11) is slidably connected with a second clamping block (12), and the inner cavity of the movable block (11) is provided with hydraulic oil.

6. The load application device for testing wire harness terminals according to claim 1, characterized in that: The second clamping assembly includes a third support platform (4), which is fixedly installed above the base (1). A third double-ended screw (17) is rotatably connected to the third support platform (4). A third clamping block (16) is threaded onto the third double-ended screw (17), and the third clamping block (16) is slidably connected to the third support platform (4).

7. The load application device for testing wire harness terminals according to claim 1, characterized in that: The linkage component includes a hydraulic oil tank (13), which is mounted on a base (1). A push rod (14) is slidably connected to the hydraulic oil tank (13), and the end of the push rod (14) away from the hydraulic oil tank (13) is in contact with the first support platform (2). The inner cavity of the hydraulic oil tank (13) is filled with hydraulic oil, and the inner cavity of the hydraulic oil tank (13) is connected to the inner cavity of the moving block (11) through a connecting pipe (15).

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