Automobile wire harness stretching test tool

Abstract

The utility model belongs to the technical field of wire harness testing devices, and discloses an automobile wire harness stretching testing tool which comprises a rack, a fixing seat is fixedly installed at the lower end of the rack, and a clamping mechanism is fixedly installed on the upper surface of the fixing seat. The automobile wire harness stretching test tool comprises a machine frame, a first air cylinder fixedly installed at the top of the machine frame, a movable plate fixedly installed at the end of an output shaft of the first air cylinder, and a second air cylinder fixedly installed on the left side and the right side of the middle of the machine frame. In the one-way test process, the middle of the wire harness is stretched towards the two sides through simultaneous contraction of the two second air cylinders, the wire harness cable part is fixed through the clamping mechanism, the moving plate is driven to move upwards through contraction of the first air cylinders, the wire harness is stretched through the mounting block in the process, and therefore the stretching test of the wire harness is achieved; therefore, a multi-direction tensile test is performed on the wire harness, and the test accuracy of the wire harness is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire harness testing devices, in particular to a tensile testing tool for automobile wire harnesses. Background Art

[0002] The automotive wiring harness is a core component of the vehicle's electrical system, connecting various electronic devices and control systems to ensure the proper transmission of power and signals. The design and manufacture of automotive wiring harnesses must take into account the vehicle's complexity and safety requirements. Therefore, they typically involve multiple disciplines, including electrical engineering, mechanical engineering, and materials science. Tensile testing of automotive wiring harnesses is a key step in assessing their mechanical strength and reliability, and is typically performed during the production process.

[0003] For example, a tensile testing tool for automobile wiring harnesses with publication number CN220322946U includes a base, a bottom fixing hook, a lifting and stretching device, a fracture testing mechanism, an electromechanical box, and a temperature testing mechanism. The upper surface of the base is connected to a bottom fixing hook for fixing the automobile wiring harness, and lifting and stretching devices are fixedly connected to both sides of the upper surface of the base, and a top stretching plate is slidably connected between the inner walls of both sides of the lifting and stretching device. The utility model can simulate the tensile strength of automobile wiring harnesses in environments with different temperatures through the temperature testing mechanism, thereby facilitating a more realistic simulation of the interior of the automobile. When in use, the duct machine works and involves the shielding curtain to surround the outer edge of the top plate. The duct machine is used to change the temperature, thereby achieving tensile strength testing of automobile wiring harnesses in different environments, thereby improving the test effect.

[0004] The device can only perform tensile testing on the wiring harness in a single direction, and its testing range is small and its testing accuracy is low. In order to solve the above problems, an automotive wiring harness tensile testing tool is proposed. Utility Model Content

[0005] The purpose of this utility model is to solve the above problems and provide an automobile wiring harness tensile test tool, comprising:

[0006] A frame, a fixing seat is fixedly mounted on the lower end thereof, and a clamping mechanism is fixedly mounted on the upper surface of the fixing seat;

[0007] A first cylinder is fixedly mounted on the top of the frame, a movable plate is fixedly mounted on the end of the output shaft of the first cylinder, a mounting block is fixedly mounted on the bottom of the movable plate, and a mounting groove is formed inside the mounting block;

[0008] The second cylinder is fixedly installed on the left and right sides of the middle of the frame, and the ends of the output shafts of the two second cylinders are fixedly installed with stretching hooks.

[0009] Through the above technical solution, when a wire harness stretch test is required, the terminal part of the wire harness is placed in the mounting groove in the mounting block, and the cable part of the wire harness is fixed by the clamping mechanism. The first cylinder is contracted to drive the movable plate to move upward. During this process, the mounting block stretches the wire harness, thereby realizing the stretch test of the wire harness. During the unidirectional test, the two second cylinders are contracted at the same time to stretch the middle part of the wire harness to both sides, thereby performing a multi-directional stretch test on the wire harness, thereby improving the test accuracy of the wire harness.

[0010] In a preferred embodiment, guide rods are fixedly installed on both left and right sides of the upper surface of the movable plate, guide blocks are fixedly installed on both left and right sides of the upper end of the frame, and the guide rods are slidably connected to the inside of the guide blocks.

[0011] With the above technical solution, during the up and down movement of the movable plate, the guide block cooperates with the guide rod to make it always move up and down along a straight line.

[0012] In a preferred embodiment, an electric control cabinet is fixedly mounted on one side of the frame, and the first cylinder and the second cylinder are both connected to the electric control cabinet via electrical signals.

[0013] In a preferred embodiment, the upper surface of the clamping mechanism is slidably connected to clamping blocks on both sides, the lower end of the clamping block is fixedly installed with a moving block, the inside of the clamping mechanism is rotatably connected to a screw rod, and the screw rod is threadedly connected to the two moving blocks.

[0014] Through the above technical solution, the screw rod is rotated to drive the two movable plates to move inwardly toward each other along the screw rod, so that the two clamping blocks can clamp the wire harness.

[0015] In a preferred embodiment, a handwheel is fixedly mounted on one side of the screw rod.

[0016] Through the above technical solution, the screw rod can be easily rotated by the handwheel.

[0017] In a preferred embodiment, the thread directions of the two ends of the screw rod are opposite.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: the present invention provides an automobile wiring harness tensile testing tool.

[0019] When a wire harness stretch test is required, the wire harness terminal part is placed in the mounting groove in the mounting block, and the wire harness cable part is fixed by the clamping mechanism. The first cylinder contracts to drive the movable plate to move upward. During this process, the mounting block stretches the wire harness, thereby realizing the wire harness stretch test. During the unidirectional test, the two second cylinders contract at the same time to stretch the middle part of the wire harness to both sides, thereby performing a multi-directional stretch test on the wire harness, thereby improving the test accuracy of the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 For this utility model Figure 1 A magnified view of middle A;

[0022] Figure 3 It is a cross-sectional view of the clamping mechanism in the present utility model.

[0023] Markings in the figure: 1-frame; 2-fixed seat; 3-clamping mechanism; 4-first cylinder; 5-movable plate; 6-mounting block; 7-mounting slot; 8-second cylinder; 9-stretching hook; 10-guide block; 11-guide rod; 12-electric control cabinet; 13-clamping block; 14-moving block; 15-screw; 16-handwheel. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are 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 shall fall within the scope of protection of the present invention.

[0025] The following will be combined Figure 1-3 The automobile wiring harness tensile testing tool of the embodiment of the utility model is described in detail.

[0026] Example:

[0027] Automotive wiring harness tensile test fixture, including:

[0028] The frame 1 has a fixed base 2 fixedly mounted on its lower end, a clamping mechanism 3 fixedly mounted on the upper surface of the fixed base 2, a clamping block 13 slidably connected to the left and right sides of the upper surface of the clamping mechanism 3, a moving block 14 fixedly mounted on the lower end of the clamping block 13, a screw rod 15 rotatably connected inside the clamping mechanism 3, the screw rod 15 and the two moving blocks 14 are threadedly connected, and the screw rod 15 is rotated to drive the two moving plates 14 to move inward toward each other along the screw rod 15, so that the two clamping blocks 13 clamp the wiring harness, and a hand wheel 16 is fixedly mounted on one side of the screw rod 15, which facilitates the rotation of the screw rod 15, and the thread directions at both ends of the screw rod 15 are opposite;

[0029] The first cylinder 4 is fixedly mounted on the top of the frame 1, and a movable plate 5 is fixedly mounted on the end of the output shaft of the first cylinder 4, and a mounting block 6 is fixedly mounted on the bottom of the movable plate 5, and a mounting groove 7 is opened inside the mounting block 6. Guide rods 11 are fixedly mounted on the left and right sides of the upper surface of the movable plate 5, and guide blocks 10 are fixedly mounted on the left and right sides of the upper end of the frame 1. The guide rods 11 are slidably connected to the inside of the guide blocks 10. In the process of the movable plate 5 moving up and down, the guide blocks 10 cooperate with the guide rods 11 to make it always move up and down along a straight line. When a wire harness tensile test is required, the wire harness terminal part is placed in the mounting groove 7 in the mounting block 6, and then the wire harness cable part is fixed by the clamping mechanism 3. The movable plate 5 is driven to move upward by the contraction of the first cylinder 4. During this process, the mounting block 6 stretches the wire harness, thereby realizing the wire harness tensile test;

[0030] The second cylinder 8 is fixedly installed on the left and right sides of the middle part of the frame 1. The output shaft ends of the two second cylinders 8 are fixedly installed with stretching hooks 9. An electric control cabinet 12 is fixedly installed on one side of the frame 1. The first cylinder 4 and the second cylinder 8 are both electrically connected to the electric control cabinet 12. During the unidirectional test, the middle part of the wire harness is stretched to both sides by the simultaneous contraction of the two second cylinders 8, thereby performing a multi-directional stretching test on the wire harness, thereby improving the test accuracy of the wire harness.

[0031] Working principle:

[0032] When a wire harness stretch test is required, the wire harness terminal part is placed in the mounting groove 7 in the mounting block 6, and the wire harness cable part is fixed by the clamping mechanism 3. The first cylinder 4 contracts to drive the movable plate 5 to move upward. During this process, the mounting block 6 stretches the wire harness, thereby realizing the wire harness stretch test. During the unidirectional test, the two second cylinders 8 contract at the same time to stretch the middle part of the wire harness to both sides, thereby performing a multi-directional stretch test on the wire harness, thereby improving the test accuracy of the wire harness.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. Automobile wiring harness tensile test tool, characterized by: include: A frame (1) having a fixed seat (2) fixedly mounted on its lower end, and a clamping mechanism (3) fixedly mounted on the upper surface of the fixed seat (2); A first cylinder (4) is fixedly mounted on the top of the frame (1); a movable plate (5) is fixedly mounted on the end of the output shaft of the first cylinder (4); a mounting block (6) is fixedly mounted on the bottom of the movable plate (5); and a mounting groove (7) is provided inside the mounting block (6); The second cylinder (8) is fixedly mounted on the left and right sides of the middle of the frame (1), and the output shaft ends of the two second cylinders (8) are fixedly mounted with stretching hooks (9).

2. The automotive wiring harness tensile testing tool according to claim 1, characterized in that: Guide rods (11) are fixedly mounted on both left and right sides of the upper surface of the movable plate (5), guide blocks (10) are fixedly mounted on both left and right sides of the upper end of the frame (1), and the guide rods (11) are slidably connected to the inside of the guide blocks (10).

3. The automotive wiring harness tensile testing tool according to claim 1, characterized in that: An electric control cabinet (12) is fixedly mounted on one side of the frame (1), and the first cylinder (4) and the second cylinder (8) are both electrically connected to the electric control cabinet (12).

4. The automotive wiring harness tensile testing tool according to claim 1, characterized in that: The left and right sides of the upper surface of the clamping mechanism (3) are both slidably connected to clamping blocks (13), the lower end of the clamping block (13) is fixedly mounted with a moving block (14), the inside of the clamping mechanism (3) is rotatably connected to a screw rod (15), and the screw rod (15) is threadedly connected to the two moving blocks (14).

5. The automotive wiring harness tensile testing tool according to claim 4, characterized in that: A hand wheel (16) is fixedly mounted on one side of the screw rod (15).

6. The automotive wiring harness tensile testing tool according to claim 5, characterized in that: The threads at both ends of the screw rod (15) are in opposite directions.

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