Automobile wire harness stretching test device

Abstract

The utility model relates to the technical field of tensile testing devices, and discloses an automobile wire harness tensile testing device which comprises a supporting bottom plate, a supporting screw rod is fixed at one end of the middle of the top surface of the supporting bottom plate, a rotating sleeve block is rotatably sleeved on the supporting screw rod, and a rotating supporting plate is sleeved on the supporting screw rod on the top surface of the rotating sleeve block in a threaded mode. According to the utility model, through the adjustable rotary supporting plate, the bending angle of a wire harness during stretching can be adjusted during use, and through clamping and limiting of the groove, the fixation degree during clamping is ensured, and through cooperation with a positioning mark, the deformation length after stretching can be confirmed; the problems that a clamping end slides out due to insufficient clamping force of an existing automobile wire harness tensile testing device during testing and the detection accuracy is easily affected by a single tensile direction are solved, and the detection accuracy of the testing device is greatly improved.

Description

Technical Field

[0001] The present utility model application relates to the technical field of tensile testing devices, and specifically to an automotive wire harness tensile testing device. Background Art

[0002] An automotive wire harness is the network main body of an automotive circuit. A wire harness refers to a component formed by crimping contact terminals made of copper material onto a wire and cable, and then plastically pressing an insulator or adding a metal housing outside, etc., and bundling the wire harness to form a component for connecting the circuit. The requirements for the materials of automotive wire harnesses are also very strict, including their electrical performance, material volatility, heat resistance, etc.

[0003] After the automotive wire harness is processed, it is necessary to test its tensile resistance performance. When the existing tensile testing device is in use, after clamping and fixing both ends of the wire harness, it can be pulled to one side. However, due to insufficient clamping force during pulling, the wire harness in the clamped section is likely to slip out, which will affect the accuracy of the test, and only linear pulling cannot detect the tensile resistance performance of the wire harness after bending. Summary of the Invention

[0004] In order to solve the problems that the clamping force of the existing automotive wire harness tensile testing device is insufficient during testing, resulting in the clamped end slipping out, and the single stretching direction is likely to affect the detection accuracy, the present utility model provides an automotive wire harness tensile testing device to solve the above problems.

[0005] To achieve the above object, the present utility model provides the following technical solutions:

[0006] An automotive wire harness tensile testing device includes a support bottom plate. One end in the middle of the top surface of the support bottom plate is fixedly provided with a support screw rod, and a rotating sleeve block is rotatably sleeved on the support screw rod. A rotating support plate is threadedly sleeved on the support screw rod on the top surface of the rotating sleeve block. A fixed clamping block is fixedly provided on the side of the rotating sleeve block. A servo cylinder I is arranged on the top surface of the fixed clamping block near the support screw rod end. A movable support plate is slidably arranged at the other end of the top surface of the fixed clamping block. The output rods of the servo cylinder I are symmetrically fixed on the movable support plate. Fixed clamping plates are fixedly provided on the top surfaces of the support screw rod and the movable support plate. Support frames are arranged outside the fixed clamping plates, and the support frames are respectively fixedly provided on the top surfaces of the support bottom plate and the movable support plate. Servo cylinders II are arranged on the top surfaces of the support frames. Movable clamping plates are arranged above the fixed clamping plates, and the output ends of the servo cylinders II penetrate through the support frames and are fixedly provided on the top surfaces of the movable clamping plates.

[0007] Furthermore, a guide roller is fixedly provided on the bottom surface of the upper part of the support frame on the top surface of the support bottom plate, and the guide roller is located on the side of the movable clamping plate, and the bottom surface of the guide roller is flush with the bottom surface of the fixed clamping plate.

[0008] Further, the height of the support screw is greater than the sum of the heights of the rotating sleeve block and the rotating support plate. The bottom surfaces of the rotating sleeve block and the fixed clamping block are both slidably attached to the top surface of the support base plate. Different-color marking lines are symmetrically coated on the outer surface of the wire harness between the two fixed clamping plates.

[0009] Further, a rotating hole matching the support screw is provided inside the rotating sleeve block, and one end of the fixed clamping block close to the support screw is arranged in an arc shape matching the rotating sleeve block.

[0010] Further, a slider is fixed in the middle of the bottom surface of the moving support plate. A sliding groove matching the slider is provided inside the fixed clamping block, and the sliding groove is arranged in a "convex" shape matching the slider.

[0011] Further, positioning grooves matching the wire harness are provided in the middle of the top surface of each fixed clamping plate and the bottom surface of the moving clamping plate, and the height of each positioning groove is less than half of the height of the wire harness.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] In the present utility model, through the adjustable rotating support plate, during use, the bending angle of the wire harness during stretching can be adjusted. And through the groove clamping and limiting, the fixing degree during clamping is ensured. Cooperating with the positioning mark, the deformed length after stretching can be confirmed, solving the problems that the clamping force of the existing automobile wire harness stretching test device is insufficient during testing, resulting in the sliding out of the clamping end, and the stretching direction is single, which easily affects the detection accuracy. The detection accuracy of the test device is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 is a front view structural schematic diagram of a stretching test device according to an embodiment of the present application;

[0016] Figure 2 is Figure 1 a front view sectional schematic diagram of the stretching test device in the shown embodiment;

[0017] Figure 3 is Figure 1 a front view structural schematic diagram of the stretching test device during operation in the shown embodiment.

[0018] Meanings of the reference numerals in the drawings: 1. Support base plate; 2. Support screw; 3. Rotating sleeve block; 4. Fixed clamping block; 5. Rotating support plate; 6. Servo cylinder 1; 7. Moving support plate; 8. Support frame; 9. Fixed clamping plate; 10. Moving clamping plate; 11. Servo cylinder 2; 12. Guide roller; 13. Slide block; 14. Slide groove. Detailed implementation manners

[0019] In order to make the application purpose, features and advantages of the present application more obvious and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0020] Refer to Figure 1 , Figure 2 and Figure 3 , an automotive wire harness stretching test device, including a support base plate 1. One end in the middle of the top surface of the support base plate 1 is fixedly provided with a support screw 2. The height of the support screw 2 is greater than the sum of the heights of the rotating sleeve block 3 and the rotating support plate 5. The bottom surfaces of the rotating sleeve block 3 and the fixed clamping block 4 are both slidably attached to the top surface of the support base plate 1. Different-color marking lines are symmetrically coated on the outer surface of the wire harness between the two fixed clamping plates 9. And a rotating sleeve block 3 is rotatably sleeved on the support screw 2. A rotating hole matching with the support screw 2 is opened inside the rotating sleeve block 3. One end of the fixed clamping block 4 close to the support screw 2 is arranged in an arc shape matching with the rotating sleeve block 3. A rotating support plate 5 is threadedly sleeved on the support screw 2 on the top surface of the rotating sleeve block 3. A fixed clamping block 4 is fixedly provided on the side of the rotating sleeve block 3. A servo cylinder 1 6 is arranged on the top surface of the fixed clamping block 4 close to the support screw 2 end. The other end of the top surface of the fixed clamping block 4 is slidably provided with a moving support plate 7. The output rods of the servo cylinder 1 6 are symmetrically fixed on the moving support plate 7. Fixed clamping plates 9 are fixedly provided on the top surfaces of the support screw 2 and the moving support plate 7. Support frames 8 are arranged on the outer sides of the fixed clamping plates 9. And the support frames 8 are respectively fixedly provided on the top surfaces of the support base plate 1 and the moving support plate 7. Servo cylinders 2 11 are arranged on the top surfaces of the support frames 8. Moving clamping plates 10 are arranged above the fixed clamping plates 9. Positioning grooves matching with the wire harness are opened in the middle of the top surfaces of each side of the fixed clamping plates 9 and the bottom surfaces of the moving clamping plates 10. And the height of each positioning groove is less than half of the height of the wire harness. The output ends of the servo cylinders 2 11 penetrate through the support frames 8 and are fixed on the top surfaces of the moving clamping plates 10.

[0021] Specifically, when it is necessary to detect the wire harness, place the wire harness inside the positioning groove in the fixed clamping plate 9. The second servo cylinder 11 operates to drive the moving clamping plate 10 to move downward and abut against the wire harness, so as to clamp and fix the wire harness. After fixation, the first servo cylinder 6 operates to push the moving support plate 7 away from the support screw 2, which can drive the fixed clamping plate 9 above the moving support plate 7 away from the fixed clamping plate 9 above the support screw 2, thereby stretching the wire harness. Adjust the stretching strength by the pushing distance, and determine the stretching variable by the change in the distance between the two marking lines at this time. When it is necessary to adjust the stretching angle, turn the rotating support plate 5 to release the clamping and fixation of the rotating sleeve block 3, and then the stretching angle can be adjusted.

[0022] As an optimized solution, as Figure 3 shown, a guide roller 12 is fixedly installed on the bottom surface of the upper part of the support frame 8 on the top surface of the support bottom plate 1, and the guide roller 12 is located on the side of the moving clamping plate 10. The bottom surface of the guide roller 12 is flush with the bottom surface of the fixed clamping plate 9. A slider 13 is fixedly installed in the middle of the bottom surface of the moving support plate 7. A chute 14 matching the slider 13 is opened inside the fixed clamping block 4, and the chute 14 is set in a "convex" shape matching the slider 13.

[0023] Specifically, when rotating the rotating sleeve block 3 and the fixed clamping block 4 to adjust the stretching angle, the wire harness abuts against the outer surface of the guide roller 12, so as to detect the anti-stretching performance of the arc-bent wire harness. When the moving support plate 7 moves, it drives the slider 13 to move inside the chute 14, ensuring the stability of the moving support plate 7 during movement.

[0024] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the same elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0025] The above is the description. The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An automotive wire harness stretching test device, characterized in that: It includes a supporting bottom plate (1). One end in the middle of the top surface of the supporting bottom plate (1) is fixedly provided with a supporting screw rod (2), and a rotating sleeve block (3) is rotatably sleeved on the supporting screw rod (2). A rotating support plate (5) is threadedly sleeved on the supporting screw rod (2) on the top surface of the rotating sleeve block (3). A fixed clamping block (4) is fixedly provided on the side of the rotating sleeve block (3). A servo cylinder one (6) is arranged on the top surface of the fixed clamping block (4) near the end of the supporting screw rod (2). A moving support plate (7) is slidably arranged at the other end of the top surface of the fixed clamping block (4). The output rods of the servo cylinder one (6) are symmetrically fixed on the moving support plate (7). Fixed clamping plates (9) are fixedly provided on the top surfaces of the supporting screw rod (2) and the moving support plate (7). Support frames (8) are arranged on the outer sides of the fixed clamping plates (9), and the support frames (8) are respectively fixedly provided on the top surfaces of the supporting bottom plate (1) and the moving support plate (7). Servo cylinders two (11) are arranged on the top surfaces of the support frames (8). Moving clamping plates (10) are arranged above the fixed clamping plates (9). The output ends of the servo cylinders two (11) penetrate through the support frames (8) and are fixed on the top surfaces of the moving clamping plates (10).

2. The automotive wire harness tensile testing device according to claim 1, characterized in that: A guide roller (12) is fixedly provided on the bottom surface of the upper part of the support frame (8) on the top surface of the supporting bottom plate (1), and the guide roller (12) is located on the side of the moving clamping plate (10). The bottom surface of the guide roller (12) is flush with the bottom surface of the fixed clamping plate (9).

3. The automotive wiring harness stretching test device according to claim 1, wherein: The height of the supporting screw rod (2) is greater than the sum of the heights of the rotating sleeve block (3) and the rotating support plate (5). The bottom surfaces of the rotating sleeve block (3) and the fixed clamping block (4) are both in sliding fit with the top surface of the supporting bottom plate (1). Different-color marking lines are symmetrically coated on the outer surface of the wire harness between the two fixed clamping plates (9).

4. The automotive wire harness stretching test device according to claim 1, characterized in that: A rotating hole matching the supporting screw rod (2) is formed inside the rotating sleeve block (3). One end of the fixed clamping block (4) near the supporting screw rod (2) is arranged in an arc shape matching the rotating sleeve block (3).

5. The automotive wire harness stretching test device according to claim 1, characterized in that: A slider (13) is fixedly provided in the middle of the bottom surface of the moving support plate (7). A chute (14) matching the slider (13) is formed inside the fixed clamping block (4), and the chute (14) is arranged in a "convex”-shaped matching the slider (13).

6. The automotive wire harness stretching test device according to claim 1, wherein: Positioning grooves matching the wire harness are formed in the middle of the top surfaces of the fixed clamping plates (9) on each side and the bottom surfaces of the moving clamping plates (10), and the heights of the positioning grooves are all less than half of the height of the wire harness.

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