Tension testing machine for automobile wire harness

Abstract

The utility model relates to a tensile testing machine for an automobile wire harness, belongs to the technical field of tensile testing of wire harnesses, and aims to solve the problem that the wire harness is easy to collide with other parts of the testing machine after being broken in the testing process. Through a winding column A, a winding rod B, an adjusting assembly, a shielding cover A and a shielding cover B, an automobile wire harness is preliminarily fixed through the winding column A and the winding rod B, the automobile wire harnesses with different diameters are secondarily fixed through cooperation with the adjusting assembly, and through a motor and a threaded rod, a movable frame and a fixed plate integrally move towards one side of a fixed frame at a constant speed; under the action of sliding connection of the guide block and the guide groove, the shielding cover A and the shielding cover B always protect the automobile wire harness in a force measurement range and carry out a tension test, so that the situation that the wire harness flies and collides with other parts of a testing machine after the automobile wire harness is broken in the testing process is avoided, other equipment is protected, and the testing efficiency is improved. The service life of the whole equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the tension test technical field of wiring harness, especially relates to a tension testing machine of automobile wiring harness. BACKGROUND

[0002] The automobile wiring harness is a very important component in the automobile electrical system, which is mainly composed of wires, connectors and insulating materials. The wiring harness in the automobile plays a role similar to the nervous system of the human body, responsible for distributing power to various electronic devices and systems of the automobile and ensuring the normal operation of these systems. After production, the wiring harness needs to be sampled and tested for tension using a wiring harness tension testing device to test whether it meets national standards. Chinese patent authorization announcement No. CN220170704U discloses a wiring harness tension testing machine drive assembly, which includes a workbench, a side plate fixedly installed on the left side of the top of the workbench, and an extension rod fixedly installed on the right side of the middle of the side plate. The wiring harness tension testing machine drive assembly uses the buffer pad structure and the strip pad structure in cooperation. After the wiring harness breaks, the synthetic rubber material of the buffer pad and the strip pad has the buffering and shock absorbing properties, which reduces the impact force from the vertical plate, prevents the left side of the strip block from colliding with the right side of the pressure detector, and uses the spring to reduce the impact force from the right side of the extension rod. The protection shell cooperates with the multiple structures to automatically protect the pressure detection device and the experimental device, preventing the impact force generated when the wiring harness breaks from damaging the pressure detection device and the experimental device. The existing technical solution has the following disadvantages: during use of the tension testing machine drive assembly, the fixed assembly and the tension sensor quickly collide after the wiring harness breaks during testing, and the broken wiring harness is prone to collision with other parts of the testing machine, causing damage to the pressure sensor and other parts of the experimental device. In order to improve this situation, a tension testing machine for automobile wiring harness is needed to solve the above problems. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a tension testing machine for automobile wiring harness to solve the problem of easy collision between the broken wiring harness and other parts of the testing machine during testing.

[0004] In order to achieve the above object, the utility model provides following technical scheme: a tension testing machine of automobile wire harness, including test table, both sides of the upper surface of test table are provided with fixed frame and movable frame, the upper surface of movable frame is fixed with fixed plate, and the upper surface of fixed plate is provided with winding column A, the upper surface of fixed frame is fixed with fixed seat, and the inside of fixed seat is provided with movable plate, the side away from fixed plate of movable plate is fixed with winding rod B, fixed plate and fixed seat are located between winding rod B and winding column A, the side of fixed seat and the side of fixed plate are provided with adjusting assembly, the side of movable plate and the side of fixed plate are provided with moving groove, the side close to fixed seat of fixed seat is provided with shield cover B, the side close to fixed seat of fixed plate is provided with shield cover A, the side close to fixed plate of shield cover A and the side close to fixed seat of shield cover B are provided with moving block, the moving block is slidably connected with moving groove, the upper surface of shield cover B is provided with guide groove, the lower surface of shield cover A is provided with guide block, and the guide block is slidably connected with guide groove.

[0005] Preferably, the adjusting assembly includes an inner threaded seat provided on one side of the movable plate and the fixed plate, an outer threaded sleeve is threadedly connected to the inner side of the inner threaded seat, an accommodating groove is provided in the inner portion of the outer threaded sleeve, and a plurality of anti-skid pads are provided in the inner portion of the accommodating groove.

[0006] Preferably, the anti-skid pads extend into the inner side of the movable plate, the plurality of anti-skid pads are arranged in an inclined manner on the side close to the movable plate, and the anti-skid pads are arranged in a circumferential array in the inner portion of the accommodating groove.

[0007] Preferably, a pressure sensor is provided on the side of the inner wall of the fixed seat close to the shield cover B, an extrusion plate is provided on the side of the pressure sensor away from the fixed plate, a spring is provided on the side of the extrusion plate away from the pressure sensor, and the end of the spring away from the extrusion plate is fixedly connected to the side of the movable plate.

[0008] Preferably, a connecting block is fixedly connected to the upper surface and the lower surface of the movable plate, a connecting groove is provided on the inner side of the fixed seat and the upper surface of the fixed frame, and the connecting groove is slidably connected with the connecting block.

[0009] Preferably, installation grooves A and B are provided on both sides of the inner portion of the test table, a motor is provided in the inner portion of the installation groove A, a threaded rod is rotatably connected in the inner portion of the installation groove B, the threaded rod is fixedly connected with the output shaft of the motor, an inner threaded mounting block is threadedly connected to the outer surface of the threaded rod, the inner threaded mounting block is slidably connected with the installation groove B, and the upper surface of the inner threaded mounting block is fixedly connected with the lower surface of the movable frame.

[0010] Preferably, the inside of the shielding cover B and the inside of the shielding cover A are provided with U-shaped grooves, the inside of the moving plate, the fixed seat and the fixed plate are provided with circular grooves, and the circular grooves and the U-shaped grooves are in the same horizontal plane.

[0011] Compared with the prior art, the technical scheme has the beneficial effects that: the automobile wire harness is preliminarily fixed through the winding column A and the winding rod B, and is secondarily fixed through the adjusting assembly for automobile wire harnesses with different diameters, the moving frame and the fixed plate move at a uniform speed to one side of the fixed frame as a whole through the motor and the threaded rod, the shielding cover A and the shielding cover B always protect the automobile wire harness in the force range under the sliding connection of the guide block and the guide groove, tension test is carried out, the situation that the automobile wire harness breaks during the test process and collides with other parts of the testing machine is avoided, other equipment is protected, and the service life of the overall equipment is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0013] Figure 1 It is a formal cross-sectional structure schematic diagram of the present application.

[0014] Figure 2 It is a three-dimensional structure schematic diagram of the present application.

[0015] Figure 3 It is a three-dimensional structure schematic diagram of the moving frame of the present application.

[0016] Figure 4 It is a limiting sleeve orthographic three-dimensional structure schematic diagram of the present application.

[0017] The reference signs in the drawings are as follows: 1, fixed plate; 2, shielding cover A; 3, shielding cover B; 4, fixed seat; 5, moving plate; 6, adjusting assembly; 601, internal thread seat; 602, external thread sleeve; 603, containing groove; 604, anti-skid pad; 7, fixed frame; 8, test bench; 9, internal thread mounting block; 10, threaded rod; 11, moving frame; 12, winding column A; 13, moving block; 14, guide block; 15, guide groove; 16, moving groove; 17, connecting groove; 18, spring; 19, extrusion plate; 20, pressure sensor; 21, winding rod B; 22, motor; 23, connecting block. DETAILED DESCRIPTION

[0018] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0019] In order to further understand the content of the present application, the present application will be described in detail with reference to the drawings.

[0020] In combination with Figure 1 , Figure 2 and Figure 3 , the tension testing machine for automobile wire harness of the present application comprises a test bench 8, and the upper surfaces of both sides of the test bench 8 are respectively provided with a fixed frame 7 and a movable frame 11. The upper surface of the movable frame 11 is fixedly provided with a fixed plate 1, and the upper surface of the fixed plate 1 is provided with a winding column A12. The upper surface of the fixed frame 7 is fixedly provided with a fixed seat 4, and the inside of the fixed seat 4 is provided with a movable plate 5. The side of the movable plate 5 away from the fixed plate 1 is fixedly provided with a winding rod B21. The fixed plate 1 and the fixed seat 4 are located between the winding rod B21 and the winding column A12. The side of the fixed seat 4 and the side of the fixed plate 1 are both provided with an adjusting assembly 6. The side of the movable plate 5 and the side of the fixed plate 1 are both provided with a moving groove 16. The side of the fixed seat 4 close to the fixed plate 1 is provided with a shielding cover B3, and the side of the fixed plate 1 close to the fixed seat 4 is provided with a shielding cover A2. The side of the shielding cover A2 close to the fixed plate 1 and the side of the shielding cover B3 close to the fixed seat 4 are both provided with a moving block 13. The moving block 13 is slidably connected with the moving groove 16. The upper surface of the shielding cover B3 is provided with a guide groove 15, and the lower surface of the shielding cover A2 is provided with a guide block 14, which is slidably connected with the guide groove 15.

[0021] The present application will be further described in combination with the embodiments. Embodiments

[0022] In combination with Figure 1 , Figure 2 and Figure 4The inner wall of the fixed seat 4 near one side of the shielding cover B3 is provided with a pressure sensor 20, and the side of the pressure sensor 20 away from the fixed plate 1 is provided with a pressing plate 19, the side of the pressing plate 19 away from the pressure sensor 20 is provided with a spring 18, and the end of the spring 18 away from the pressing plate 19 is fixedly connected with one side of the moving plate 5, the upper surface and the lower surface of the moving plate 5 are both fixedly connected with a connecting block 23, the inner side of the fixed seat 4 and the upper surface of the fixed frame 7 are both provided with a connecting groove 17, and the connecting grooves 17 are both in sliding connection with the connecting block 23, the inner sides of the two sides of the test bench 8 are respectively provided with a mounting groove A and a mounting groove B, the inside of the mounting groove A is provided with a motor 22, the mounting groove B is rotationally connected with a threaded rod 10, and the threaded rod 10 is fixedly connected with the output shaft of the motor 22, the outer surface of the threaded rod 10 is threadedly connected with an internally threaded mounting block 9, and the internally threaded mounting block 9 is in sliding connection with the mounting groove B, the upper surface of the internally threaded mounting block 9 is fixedly connected with the lower surface of a moving frame 11, the inside of the shielding cover B3 and the inside of the shielding cover A2 are both provided with a U-shaped groove, and the inside of the moving plate 5, the fixed seat 4 and the fixed plate 1 are all provided with a circular groove, and the circular groove and the U-shaped groove are on the same horizontal plane.

[0023] In this embodiment, when the tensile testing machine needs to be used, the shielding cover A2 is pulled to separate the shielding cover A2 and the shielding cover B3 from the fixed seat 4 as a whole, one side of the automobile wiring harness is passed through the fixed plate 1, the shielding cover A2, the shielding cover B3, the fixed seat 4 and the moving plate 5, and the two ends of the automobile wiring harness are wound around the outside of the winding column A12 and the winding rod B21 respectively, the automobile wiring harness is reinforced, the moving blocks 13 on the outside of the shielding cover A2 and the shielding cover B3 are in sliding connection with the moving grooves 16, then the motor 22 is started to drive the threaded rod 10 to rotate, under the threaded connection, the internally threaded mounting block 9, the moving frame 11 and the fixed plate 1 as a whole move uniformly to one side of the fixed frame 7, after the automobile wiring harness is subjected to the tension on one side of the fixed plate 1, the moving plate 5 as a whole moves to one side of the pressure sensor 20, under the elastic action of the spring 18, the pressure generated by the tension is given to the pressure sensor 20, the tension is detected through the pressure sensor 20, under the sliding connection of the guide blocks 14 and the guide grooves 15, the shielding cover A2 and the shielding cover B3 always protect the automobile wiring harness within the force range, so as to avoid the situation that the automobile wiring harness breaks during the test process and collides with other parts of the testing machine, thereby protecting other equipment and prolonging the service life of the whole equipment. Embodiment

[0024] In combination Figure 1 , Figure 3 and Figure 4The adjusting assembly 6 comprises an inner threaded seat 601 arranged on one side of the moving plate 5 and the fixed plate 1, an outer threaded sleeve 602 is threadedly connected to the inner side of the inner threaded seat 601, an accommodating groove 603 is arranged in the inner portion of the outer threaded sleeve 602, a plurality of anti-skid pads 604 are arranged in the inner portion of the accommodating groove 603, the plurality of anti-skid pads 604 extend into the inner side of the moving plate 5, the anti-skid pads 604 are arranged in an inclined shape on the side close to the moving plate 5, and the anti-skid pads 604 are arranged in a circumferential array in the inner portion of the accommodating groove 603.

[0025] In the embodiment, the outer threaded sleeve 602 is rotated, the outer threaded sleeve 602 is moved to the side of the moving plate 5 under the threaded connection of the outer threaded sleeve 602 and the inner threaded seat 601, the outer side of the anti-skid pads 604 is arranged in an inclined shape, the anti-skid pads 604 are pressed to the automobile wire harness as a whole, the automobile wire harness with different diameters is fixed, the stability of the automobile wire harness after being fixed is further strengthened, the application range of the automobile wire harness tensile testing machine is improved, and the flexibility of the tensile testing machine is enhanced.

[0026] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0027] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tensile testing machine for automotive wiring harnesses, comprising a test bench (8), characterized in that: The upper surface of the test bench (8) is provided with a fixed frame (7) and a movable frame (11) on both sides. A fixed plate (1) is fixed on the upper surface of the movable frame (11), and a winding column A (12) is provided on the upper surface of the fixed plate (1). A fixed seat (4) is fixed on the upper surface of the fixed frame (7), and a movable plate (5) is provided inside the fixed seat (4). A winding rod B (21) is fixed on the side of the movable plate (5) away from the fixed plate (1). The fixed plate (1) and the fixed seat (4) are located between the winding rod B (21) and the winding column A (12). An adjustment component (6) is provided on one side of the fixed seat (4) and one side of the fixed plate (1). The movable plate (5) has a moving groove (16) on one side and a fixed plate (1) on the other side. The fixed base (4) has a shield B (3) on the side near the fixed plate (1). The fixed plate (1) has a shield A (2) on the side near the fixed base (4). The shield A (2) and the shield B (3) are both provided with moving blocks (13) on the side near the fixed plate (1) and the side near the fixed base (4). The moving blocks (13) are slidably connected to the moving groove (16). The upper surface of the shield B (3) is provided with a guide groove (15). The lower surface of the shield A (2) is provided with a guide block (14), and the guide block (14) is slidably connected to the guide groove (15).

2. The tensile testing machine for automotive wiring harnesses according to claim 1, characterized in that: The adjustment assembly (6) includes an internal thread seat (601) disposed on one side of the moving plate (5) and the fixed plate (1). The internal thread seat (601) is threadedly connected to an external thread sleeve (602), and the external thread sleeve (602) is provided with a receiving groove (603) inside. The receiving groove (603) is provided with a plurality of anti-slip pads (604).

3. The tensile testing machine for automotive wiring harnesses according to claim 2, characterized in that: The anti-slip pad (604) extends into the inner side of the movable plate (5), and the anti-slip pad (604) is inclined on the side near the movable plate (5). The multiple anti-slip pads (604) are arranged in a circular array inside the receiving groove (603).

4. The tensile testing machine for automotive wiring harnesses according to claim 1, characterized in that: A pressure sensor (20) is provided on the inner wall of the fixed base (4) near the shield B (3), and a pressing plate (19) is provided on the side of the pressure sensor (20) away from the fixed plate (1). A spring (18) is provided on the side of the pressing plate (19) away from the pressure sensor (20), and the end of the spring (18) away from the pressing plate (19) is fixedly connected to one side of the moving plate (5).

5. The tensile testing machine for automotive wiring harnesses according to claim 1, characterized in that: The upper and lower surfaces of the movable plate (5) are both fixed with connecting blocks (23), and the inner side of the fixed seat (4) and the upper surface of the fixed frame (7) are both provided with connecting grooves (17), and the connecting grooves (17) are slidably connected to the connecting blocks (23).

6. The tensile testing machine for automotive wiring harnesses according to claim 1, characterized in that: The test bench (8) has mounting slots A and B on its inner sides respectively. A motor (22) is installed inside the mounting slot A. A threaded rod (10) is rotatably connected inside the mounting slot B. The threaded rod (10) is fixedly connected to the output shaft of the motor (22). An internal threaded mounting block (9) is threadedly connected to the outer surface of the threaded rod (10). The internal threaded mounting block (9) is slidably connected to the mounting slot B. The upper surface of the internal threaded mounting block (9) is fixedly connected to the lower surface of the moving frame (11).

7. The tensile testing machine for automotive wiring harnesses according to claim 1, characterized in that: The interior of the shielding cover B (3) and the interior of the shielding cover A (2) are both provided with U-shaped grooves. The interiors of the moving plate (5), the fixed seat (4) and the fixed plate (1) are all provided with circular grooves, and the circular grooves and the U-shaped grooves are on the same horizontal plane.

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