Automobile wire harness rubber sheath test equipment

Abstract

The utility model discloses an automobile wire harness rubber sheath testing device, which relates to the technical field of rubber sheath testing and comprises an actuating mechanism, a driving mechanism and a counting device. The action mechanism comprises a movable frame and a fixed frame, the fixed frame is fixedly connected with the workbench, the movable frame is rotationally connected with the workbench through a rotating shaft, and the rotating shaft is located at one end of the fixed frame; the driving mechanism comprises a disc driven by a motor to rotate, the disc is rotationally connected with a connecting rod, the end, away from the disc, of the connecting rod is rotationally connected with a swing arm, and the end, away from the connecting rod, of the swing arm is fixedly connected with a rotating shaft. The counting device is used for recording the number of rotation turns of the disc. The automobile wire harness rubber sheath test equipment is simple in structure, accurate in test data and capable of adjusting the reciprocating motion amplitude.

Description

Technical Field

[0001] This utility model relates to the field of rubber sheath testing technology, specifically to a testing device for automotive wiring harness rubber sheaths. Background Technology

[0002] Car doors and the driver's cab communicate via wiring harnesses, which are typically protected by rubber sheaths. Before being put into use, these rubber sheaths undergo various tests, including a durability test, which is the most effective way to assess their performance. The durability of the rubber sheath, as a fundamental indicator and quality requirement, directly affects its service life and safety factor.

[0003] Currently, fatigue tests on rubber parts are mostly conducted using rubber fatigue testing machines. However, these machines primarily perform reciprocating tests on the parts under test in the vertical direction, which differs from the stretching of the rubber sleeve during the opening and closing of a car door. This means they cannot accurately reflect the service life of the rubber sleeve in actual use, thus affecting the accuracy of the test data.

[0004] Therefore, it is necessary to propose a testing device for automotive wiring harness rubber sheaths to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a simple, accurate, and adjustable-amplitude automotive wiring harness rubber sheath testing device to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a testing device for automotive wiring harness rubber sheaths, comprising an actuating mechanism including a movable frame and a fixed frame, the fixed frame being fixedly connected to a worktable, the movable frame being rotatably connected to the worktable via a rotating shaft located at one end of the fixed frame; a driving mechanism including a disc driven to rotate by a motor, a connecting rod rotatably connected to the disc, a swing arm rotatably connected to the end of the connecting rod away from the disc, and a fixed connection between the end of the swing arm away from the connecting rod and the rotating shaft; and a counting device for recording the number of rotations of the disc.

[0009] Preferably, a screw is rotatably connected to one side of the disk, a movable block is threadedly connected to the outer side of the screw, the movable block is slidably connected to the disk, and the end of the connecting rod away from the swing arm is rotatably connected to the movable block.

[0010] Preferably, one end of the screw points towards the axis of the disk.

[0011] Preferably, the sum of the lengths of the swing arm and the connecting rod is the distance between the center of the disk axis and the center of the rotating shaft.

[0012] Preferably, both the rotating shaft and the disk are rotatably connected to the worktable via bearings.

[0013] Preferably, the counting mechanism includes a reflective block and a reflective photoelectric sensor, wherein the reflective block is fixedly connected to the disk and the reflective photoelectric sensor is fixedly connected to the worktable.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a testing device for automotive wiring harness rubber sheaths, which has the following advantages:

[0016] 1. This automotive wiring harness rubber sheath testing equipment can drive the movable frame to reciprocate under the action of connecting rods, discs and swing arms, simulating the operation of opening and closing doors, so that the rubber sheath to be tested is continuously stretched and contracted to test its durability. Its structure is simple and easy to maintain.

[0017] 2. This automotive wiring harness rubber sheath testing equipment records the number of reciprocating movements of the movable frame by setting up a reflective block and a reflective photoelectric sensor and recording the number of rotations of the disc.

[0018] 3. This automotive wiring harness rubber sheath testing equipment, by setting a screw and a movable block, allows the rotational connection position between the connecting rod and the disc to be adjusted. By adjusting the distance between the movable block and the disc axis, the amplitude of the reciprocating motion can be adjusted. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a top view of the structure of this utility model;

[0021] Figure 3 This is a side view of the structure of this utility model.

[0022] In the diagram: 1. Connecting rod; 2. Disc; 3. Worktable; 4. Rotating shaft; 5. Swing arm; 6. Movable frame; 7. Fixed frame; 8. Screw; 9. Movable block; 10. Reflective block; 11. Reflective photoelectric sensor; 12. Motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-3 As shown, an automotive wiring harness rubber sheath testing device includes an actuating mechanism, a driving mechanism, and a counting device. The actuating mechanism includes a movable frame 6 and a fixed frame 7. The fixed frame 7 is fixedly connected to a workbench 3, and the movable frame 6 is rotatably connected to the workbench 3 via a rotating shaft 4, which is located at one end of the fixed frame 7. The driving mechanism includes a disc 2 driven to rotate by a motor 12. A connecting rod 1 is rotatably connected to the disc 2, and a swing arm 5 is rotatably connected to the end of the connecting rod 1 away from the disc 2. The end of the swing arm 5 away from the connecting rod 1 is fixedly connected to the rotating shaft 4. The counting device is used to record the number of rotations of the disc 2.

[0025] Specifically, both the rotating shaft 4 and the disk 2 are rotatably connected to the worktable 3 via bearings.

[0026] When conducting durability tests on the rubber sleeve for the car door wiring harness, the end of the rubber sleeve to be tested is connected to the sheet metal part that is compatible with it. The two sheet metal parts are then fixed to the movable frame 6 and the fixed frame 7 respectively. Preferably, the sheet metal parts are consistent with the sheet metal of the car model to which the rubber sleeve is compatible, which can further improve the simulation effect.

[0027] After fixing, start motor 12. Motor 12 drives disk 2 to rotate. Under the action of connecting rod 1 and swing arm 5, it drives movable frame 6 to rotate back and forth, simulating the operation of opening and closing a door. This causes the rubber sheath to be tested to be stretched and contracted continuously, thus testing its durability. At the same time, the number of rotations of disk 2 is recorded by a counting device, and the number of reciprocating movements of movable frame 6 is recorded.

[0028] In some embodiments, a screw 8 is rotatably connected to one side of the disk 2, and a movable block 9 is threadedly connected to the outer side of the screw 8. The movable block 9 is slidably connected to the disk 2, and the end of the connecting rod 1 away from the swing arm 5 is rotatably connected to the movable block 9.

[0029] Specifically, one end of the screw 8 points towards the axis of the disk 2.

[0030] Specifically, the sum of the lengths of the swing arm 5 and the connecting rod 1, and the distance between the center of the disk 2 axis and the center of the rotating shaft 4.

[0031] By setting the screw 8 and the movable block 9, the rotational connection position between the connecting rod 1 and the disk 2 can be adjusted. By adjusting the distance between the movable block 9 and the axis of the disk 2, the amplitude of the reciprocating motion can be adjusted.

[0032] In some embodiments, the counting mechanism includes a reflective block 10 and a reflective photoelectric sensor 11. The reflective block 10 is fixedly connected to the disk 2, and the reflective photoelectric sensor 11 is fixedly connected to the worktable 3.

[0033] When the reflective block 10 rotates to the position corresponding to the reflective photoelectric sensor 11, the light emitted by the light source of the reflective photoelectric sensor 11 is reflected by the reflective block 10 and received by its photosensitive element. The electrical signal generated by the trigger of the reflective photoelectric sensor 11 is transmitted to the controller. Each time the reflective photoelectric sensor 11 is triggered, it records one rotation of the disk 2, thereby recording the number of reciprocating movements of the movable frame 6.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for automotive wiring harness rubber sheaths, characterized in that, include: The actuation mechanism includes a movable frame (6) and a fixed frame (7). The fixed frame (7) is fixedly connected to the worktable (3). The movable frame (6) is rotatably connected to the worktable (3) through a rotating shaft (4). The rotating shaft (4) is located at one end of the fixed frame (7). The driving mechanism includes a disc (2) driven to rotate by a motor (12), a connecting rod (1) is rotatably connected to the disc (2), a swing arm (5) is rotatably connected to the end of the connecting rod (1) away from the disc (2), and the end of the swing arm (5) away from the connecting rod (1) is fixedly connected to the rotating shaft (4). A counting device for recording the number of rotations of the disk (2).

2. The automotive wiring harness rubber sheath testing equipment according to claim 1, characterized in that: A screw (8) is rotatably connected to one side of the disc (2), and a movable block (9) is threadedly connected to the outer side of the screw (8). The movable block (9) is slidably connected to the disc (2), and the end of the connecting rod (1) away from the swing arm (5) is rotatably connected to the movable block (9).

3. The automotive wiring harness rubber sheath testing equipment according to claim 2, characterized in that: One end of the screw (8) points to the axis of the disk (2).

4. The automotive wiring harness rubber sheath testing equipment according to claim 2, characterized in that: The sum of the lengths of the swing arm (5) and the connecting rod (1) is the distance between the axis of the disk (2) and the axis of the rotating shaft (4).

5. The automotive wiring harness rubber sheath testing equipment according to claim 1, characterized in that: Both the rotating shaft (4) and the disk (2) are rotatably connected to the worktable (3) via bearings.

6. The automotive wiring harness rubber sheath testing equipment according to claim 1, characterized in that: The counting device includes a reflective block (10) and a reflective photoelectric sensor (11). The reflective block (10) is fixedly connected to the disk (2), and the reflective photoelectric sensor (11) is fixedly connected to the worktable (3).

Images