A harness stretch testing device

Abstract

The utility model relates to the technical field of wire harness test, especially line harness stretching test device. Including pedestal, the pedestal top fixedly connected with support rod, support rod one side rotationally arranged has the rotating shaft, the rotating shaft other end fixedly connected with motor bin, and four push -rod motors are built -in in the motor bin, the motor bin one side fixedly set up has the operation disc, the operation disc center is crossed and is provided with cross -slot, the output of push -rod motor is fixedly connected with force block in proper order, and force block slidingly sets up in cross -slot, force block, operation disc one side still threadedly connected with a plurality of stretching columns. The utility model solves the technical problem that present stage cable strength test mode, the observation visual angle of operating personnel is limited, and it is difficult to carry out the tight state monitoring in multiple angles, real -time.

Description

Technical Field

[0001] This utility model relates to the field of wire harness testing technology, and in particular to a wire harness tensile testing device. Background Technology

[0002] Cables or wire harnesses are widely used in power transmission, communication and automotive electronics, and are typically composed of copper conductors, insulation layers and sheath materials. They are characterized by high flexibility and stable electrical performance.

[0003] Currently, cable tension or strength testing mostly relies on clamping fixtures, or one end is fixed in the test tank while the other end is subjected to tensile testing by the transverse tensioning mechanism in the tank. The stress state of the cable harness is judged by observing the tension gauge or displacement gauge. The test angle is limited, making it inconvenient to observe the cable harness tension in real time from multiple angles. The observation angle of the operator is also limited, making it inconvenient for actual observation operations. Utility Model Content

[0004] The technical problem this invention aims to solve is that current cable strength testing methods limit the operator's observation angle, making it difficult to monitor the tension status from multiple angles and in real time.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a wire harness tensile testing device, including a base, a support rod fixedly connected to the top of the base, a rotating shaft rotatably arranged on one side of the support rod, a motor compartment fixedly connected to the other end of the rotating shaft, and four push rod motors built into the motor compartment, a working plate fixedly arranged on one side of the motor compartment, a cross slot through the center of the working plate, force blocks being sequentially fixedly connected to the output ends of the push rod motors, and the force blocks being slidably arranged in the cross slot, and multiple tensile columns being threadedly connected to the force blocks and one side of the working plate.

[0006] As a further improvement of this utility model, the tension column includes a threaded column, one end of which is fixedly provided with a tensioning table, and an annular groove for accommodating cables is provided around the tensioning table.

[0007] As a further improvement of this utility model, the working disc has multiple sets of screw holes 1 that match the threaded column on the side away from the motor compartment. The number of screw holes 1 in each set is set to three, which are arranged along the three vertices of an equilateral triangle. Each set of screw holes 1 is located around the cross slot. The force-applying block has a screw hole 2 for fastening the threaded column on one side.

[0008] As a further improvement of this utility model, each side of the force-applying block is provided with a guide groove, and a guide block for sliding the force-applying block is fixedly provided on the inner wall of the cross groove.

[0009] As a further improvement of this utility model, a scale is provided around the cross-shaped slot.

[0010] As a further improvement of this utility model, several anti-slip ridges are fixedly provided around the perimeter of the working disc.

[0011] The beneficial effects of this utility model are as follows: 1. By setting a rotatable work plate on the pedestal, the wire harness has multi-angle adjustable observation capability during the tensile test. Combined with the scale located around the cross slot, the operator can flexibly adjust the observation angle of the cable by rotating the work plate, which is convenient for real-time monitoring of the tension status and avoids the problem of a single viewing angle in the traditional method.

[0012] 2. The push rod motor drives the force application block to precisely displace the tension column, enabling precise point-to-point tensioning of the wire harness. The tension column structure includes a threaded column, a tensioning platform, and an annular groove, which securely holds the cable and effectively prevents slippage. Combined with the multiple sets of equilateral triangularly arranged screw holes on the work plate and the screw holes on the force application block, flexible placement of tension points is achieved, allowing for both single-point tensile testing and simulation of multi-angle tension distribution. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a wire harness tensile testing device according to this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the overall structure of a wire harness tensile testing device according to this utility model. Figure 2 ;

[0015] Figure 3 This is a partial component demonstration of a wire harness tensile testing device according to this utility model. Figure 1 ;

[0016] Figure 4 This is a partial component demonstration of a wire harness tensile testing device according to this utility model. Figure 2 .

[0017] As shown in the figure: 1. Base; 2. Rotating shaft; 3. Motor compartment; 4. Working plate; 5. Push rod motor; 6. Force application block; 7. Tension column; 701. Threaded column; 702. Tensioning table; 703. Annular groove; 8. Threaded hole one; 9. Threaded hole two; 10. Guide slide; 11. Scale; 12. Anti-slip ridge block. Detailed Implementation

[0018] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0019] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0020] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] This utility model provides a wire harness tensile testing device, including a base 1;

[0022] As attached Figure 1 , 2 As shown in Figure 3, a support rod is fixedly connected to the top of the base 1. A rotating shaft 2 is rotatably mounted on one side of the support rod, and a motor compartment 3 is fixedly connected to the other end of the rotating shaft 2. The motor compartment 3 contains four push rod motors. A working plate 4 is fixedly mounted on one side of the motor compartment 3. Several anti-slip blocks 12 are fixedly mounted around the edges of the working plate 4 to facilitate adjustment and observation. A cross slot is provided through the center of the working plate 4. Force blocks 6 are fixedly connected to the output ends of the push rod motors 5 in sequence to ensure the stability of the force blocks 6 during displacement. A scale 11 is provided around the cross slot to provide auxiliary inspection for stress testing. The total length of the scale is 0.8m. The force blocks 6 are slidably mounted in the cross slot. Guide grooves 10 are provided on both sides of the force blocks 6, and guide blocks for sliding the force blocks 6 are fixedly mounted on the inner wall of the cross slot. Multiple tension columns 7 are also threadedly connected to the force blocks 6 and one side of the working plate 4.

[0023] As attached Figure 1 , 3 As shown in Figure 4, the tension column 7 includes a threaded column 701. One end of the threaded column 701 is fixedly provided with a tensioning table 702, and an annular groove 703 for accommodating cables is provided around the tensioning table 702. The threaded column 701 is fastened to the force-applying block 6 and the working plate 4. At the same time, the annular groove 703 is used to secure the cable harness. On the side of the working plate 4 away from the motor compartment 3, there are multiple sets of screw holes 8 that match the threaded column 701. Each set of screw holes 8 consists of three screw holes, which are set along the three vertices of an equilateral triangle. Each set of screw holes 8 is located around the cross-shaped slot. On one side of the force-applying block 6, there are screw holes 9 for fastening the threaded column 701. The tension column 7 can be assembled to different positions through the screw holes 8 and screw holes 9.

[0024] Working Principle: In practical implementation, according to the wire harness specifications and the required test direction, the tensioning post 7 is first screwed into the screw hole 8 on the working disc 4 and the screw hole 9 on the force application block 6, achieving a tight connection through the threaded post 701. The wire harness is fitted and embedded in the annular groove 703 of the tensioning table 702, securing it firmly in place. After the push rod motor 5 is started, it drives the force application block 6 to slide linearly along the guide slide 10 in the cross slot, causing the tensioning post 7 on the screw hole 9 to move outward, while the tensioning post 7 in the screw hole 8 maintains the limit on the wire harness, thereby performing a tensile test on the wire harness. At the same time, the tester can rotate the working disc 4 by moving the anti-slip rib block 12 to expose the stress state of the wire harness in different directions to the field of vision, and use the scale 11 to compare displacement and stress, effectively achieving multi-angle real-time observation. Specifically, the initial length is selected as a 50cm copper core wire harness, the qualified displacement threshold is ≤3.5cm, and the maximum tensile load is 110N. Meanwhile, the operation lasts for 30 seconds. After maintaining the tension, check for rebound or breakage. If there are no obvious problems, the product can be ensured to be effective and reliable.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wire harness tensile testing device, comprising a platform (1), characterized in that: The top of the platform (1) is fixedly connected to a support rod. A rotating shaft (2) is rotatably provided on one side of the support rod. A motor compartment (3) is fixedly connected to the other end of the rotating shaft (2). The motor compartment (3) contains four push rod motors. A working plate (4) is fixedly provided on one side of the motor compartment (3). A cross slot is provided through the center of the working plate (4). A force application block (6) is fixedly connected to the output end of the push rod motor (5) in sequence. The force application block (6) is slidably provided in the cross slot. Multiple tension columns (7) are also threadedly connected to one side of the force application block (6) and the working plate (4).

2. The wire harness tensile testing device according to claim 1, characterized in that: The tension column (7) includes a threaded column (701), one end of which is fixedly provided with a tensioning table (702), and an annular groove (703) for accommodating cables is provided around the tensioning table (702).

3. The wire harness tensile testing device according to claim 2, characterized in that: The working plate (4) has multiple sets of screw holes (8) that match the threaded column (701) on the side away from the motor compartment (3). Each set of screw holes (8) has three screw holes, and each set of screw holes (8) is located around the cross slot. The force block (6) has two screw holes (9) on one side for fastening the threaded column (701).

4. The wire harness tensile testing device according to claim 1, characterized in that: The force-applying block (6) has guide grooves (10) on both sides, and a guide block for sliding the force-applying block (6) is fixedly provided on the inner wall of the cross groove.

5. The wire harness tensile testing device according to claim 1, characterized in that: A scale (11) is provided around the cross-shaped slot.

6. The wire harness tensile testing device according to claim 1, characterized in that: Several anti-slip blocks (12) are fixedly installed around the edge of the working plate (4).

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