Torsional fatigue testing device for wire harness assembly
By designing a clamping mechanism including a rotating rod, gear and clamping block, the problem that existing testing devices cannot flexibly adjust the fixation of different thickness wiring harness components is achieved, and flexible clamping and safety of different thickness wiring harness components is achieved. test.
Patent Information
- Application Number
- CN202420692078.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-04-07
AI Technical Summary
The existing twist fatigue testing devices of wire harness components cannot flexibly adjust and fix wire harness components of different thicknesses, making torsion testing difficult.
A test device including a test bench, a sliding frame, a connecting frame, a camera, a torsion motor, a rotating disc and a clamping mechanism is designed. The clamping mechanism can flexibly adjust the clamping force through the combination of rotating rod, gear and clamping block to adapt to wire harness components of different thicknesses.
The device can easily clamp wire harness components of different thicknesses, improve safety during torsional testing, and ensure the accuracy and reliability of the test.
Smart Images
Figure CN222529162U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wire harness component life test, in particular to a wire harness component torsional fatigue test device. Background Art
[0002] Torsional fatigue testing of wiring harness assemblies is a method for evaluating their ability to maintain performance under repeated torque. The purpose is to simulate the continuous torsional movement of the wiring harness in actual applications caused by vibration, steering or engine operation during vehicle driving, and to test the durability of the wiring harness and the stability of components such as connectors and terminals under long-term torsional loads.
[0003] However, due to the different ways of assembling the wire harness components, the thickness of the wire harness components will be different, and the existing testing device cannot flexibly adjust the fixing method of the wire harness components of different thicknesses, which makes it difficult to perform the torsion test of the wire harness components.
[0004] Therefore, a wire harness assembly torsional fatigue testing device has been developed, which can conveniently clamp wire harness assemblies of different thicknesses and improve the safety of the wire harness assembly during torsion testing. Utility Model Content
[0005] In order to overcome the shortcoming of existing testing devices that the fixing method of wire harness assemblies of different thicknesses cannot be flexibly adjusted, resulting in difficulty in performing torsion tests on wire harness assemblies, the utility model provides a wire harness assembly torsional fatigue testing device that can conveniently clamp wire harness assemblies of different thicknesses and improve the safety of wire harness assembly torsion tests.
[0006] The technical solution of the utility model is: a torsional fatigue testing device for a wiring harness assembly, comprising a test bench, a sliding frame, a connecting frame, a camera, a torsional motor, a rotating disk and a clamping mechanism, wherein the upper sides of the left and right parts of the test bench are slidably connected to the sliding frames, the upper side of the front part of the test bench is connected to the connecting frame, the upper part of the connecting frame is connected to the camera, the upper part of the sliding frame is connected to the torsional motor, the output shaft of the torsional motor is connected to the rotating disk, and the rotating disk is provided with a clamping mechanism.
[0007] In one of the embodiments, a limiting frame is provided on the upper rear side of the test bench.
[0008] In one embodiment, the twist motors control the rotating disks to rotate in opposite directions.
[0009] In one of the embodiments, the clamping mechanism includes a rotating rod, a shell, a clamping block, a small gear, a large gear, a support frame and a locking piece. The upper part of the rotating disk is rotatably connected to the rotating rod, the rotating disk is connected to the shell, the rotating rods are all inserted into the adjacent shells, the rotating rods are all connected to the small gears, the lower part of the shell is slidably connected to a plurality of clamping blocks, the inner side of the lower part of the shell is rotatably connected to the large gear, the clamping blocks are all slidably connected to the adjacent large gears, the large gears are all meshed with the small gears, the upper side of the shell that is close to each other is connected to the support frame, the support frame is rotatably connected to the locking piece, the locking piece is all engaged with the adjacent rotating rod, the rotation of the rotating rod drives the small gear to rotate, the rotation of the small gear drives the large gear to rotate, the rotation of the large gear controls the clamping blocks to approach or move away from each other, and when the clamping blocks are close to each other, the cable can be clamped and fixed.
[0010] In one embodiment, a rotating ring is provided on the side of the rotating rods that are close to each other, so as to facilitate the rotation of the rotating rods and also facilitate the locking member to lock the rotating rods.
[0011] In one of the embodiments, a moving mechanism is also included, which includes a servo motor, a support block and a bidirectional lead screw. The servo motor is connected to the right side of the test bench, and the support block is connected to the upper middle side of the test bench. The support block is rotatably connected to the bidirectional lead screw, which is connected to the output shaft of the servo motor. The sliding frames are threadedly connected to the bidirectional lead screw. The rotation of the output shaft of the servo motor drives the rotation of the bidirectional lead screw. The rotation of the bidirectional lead screw controls the sliding frames to move closer or farther away from each other to adapt to the length change of the wiring harness assembly after twisting and release.
[0012] The beneficial effects of the utility model are as follows: the utility model drives the small gear to rotate by rotating the rotating rod, and the small gear drives the large gear to rotate, and the large gear controls the clamping blocks to move closer or farther away from each other. When the clamping blocks are close to each other, the cables can be clamped and fixed, and wire harness assemblies of different thicknesses can be clamped conveniently, thereby improving the safety of the wire harness assemblies during torsion testing. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0014] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model.
[0015] Figure 3 It is a schematic cross-sectional view of the three-dimensional structure of the clamping mechanism of the present utility model.
[0016] Figure 4 It is a three-dimensional structural schematic diagram of the mobile mechanism of the utility model.
[0017] Marked in the figure: 1-test bench, 2-sliding frame, 3-connecting frame, 4-camera, 5-torsion motor, 6-rotating disk, 7-clamping mechanism, 71-rotating rod, 72-housing, 73-clamping block, 74-small gear, 75-large gear, 76-support frame, 77-locking piece, 8-moving mechanism, 81-servo motor, 82-support block, 83-bidirectional screw. DETAILED DESCRIPTION
[0018] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.
[0019] A torsional fatigue testing device for a wiring harness assembly, such as Figure 1 and Figure 2 As shown, it includes a test bench 1, a sliding frame 2, a connecting frame 3, a camera 4, a torsion motor 5, a rotating disk 6 and a clamping mechanism 7. The upper sides of the left and right parts of the test bench 1 are slidably connected to the sliding frames 2, the upper front part of the test bench 1 is connected to the connecting frame 3, the upper part of the connecting frame 3 is connected to the camera 4, the upper part of the sliding frame 2 is connected to the torsion motor 5, the output shaft of the torsion motor 5 is connected to the rotating disk 6, and the rotating disk 6 is provided with a clamping mechanism 7.
[0020] like Figure 1 and Figure 3 As shown, the clamping mechanism 7 includes a rotating rod 71, a shell 72, a clamping block 73, a small gear 74, a large gear 75, a support frame 76 and a locking piece 77. The upper part of the rotating disk 6 is rotatably connected to the rotating rod 71, the rotating disk 6 is connected to the shell 72, the rotating rods 71 are all inserted into the adjacent shells 72, the rotating rods 71 are all connected to the small gears 74, the lower part of the shell 72 is slidably connected to a plurality of clamping blocks 73, the inner side of the lower part of the shell 72 is rotatably connected to the large gear 75, the clamping blocks 73 are all slidably connected to the adjacent large gear 75, the large gear 75 is all meshed with the small gear 74, the upper side of the shell 72 is connected to the support frame 76, the support frame 76 is rotatably connected to the locking piece 77, and the locking piece 77 is engaged with the adjacent rotating rod 71.
[0021] like Figure 1 and Figure 4 As shown, it also includes a moving mechanism 8, which includes a servo motor 81, a support block 82 and a bidirectional screw 83. The servo motor 81 is connected to the right side of the test bench 1, and the support block 82 is connected to the upper middle side of the test bench 1. The support block 82 is rotatably connected to the bidirectional screw 83, and the bidirectional screw 83 is connected to the output shaft of the servo motor 81. The sliding frame 2 is threadedly connected to the bidirectional screw 83.
[0022] When the utility model is in use, the wiring harness assembly to be tested is placed between the rotating disk 6, the rotating rod 71 rotates to drive the small gear 74 to rotate, the small gear 74 rotates to drive the large gear 75 to rotate, the large gear 75 rotates to control the clamping blocks 73 to move closer or farther away from each other, when the clamping blocks 73 move closer to each other, the cables can be clamped and fixed, and the locking member 77 is used to lock the rotating rod 71, and then the torsion motor 5 is started, the output shaft of the torsion motor 5 rotates to drive the rotating disk 6 to rotate, the rotating disk 6 rotates to drive the clamping block 73 to rotate, and the wiring harness assembly is twisted, and the output shaft of the servo motor 81 rotates with the bidirectional screw rod 83 to rotate, the bidirectional screw rod 83 rotates to control the sliding frame 2 to move closer or farther away from each other to adapt to the length change after the wiring harness assembly is twisted and released, and the wiring harness assembly is subjected to a tensile test, and the camera 4 takes pictures and records, and cooperates with the visual inspection system to detect the quality of the wiring harness assembly.
[0023] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.
Claims
1. A wiring harness assembly torsional fatigue testing device, characterized in that: The invention comprises a test bench (1), a sliding frame (2), a connecting frame (3), a camera (4), a torsion motor (5), a rotating disk (6) and a clamping mechanism (7); the upper sides of the left and right parts of the test bench (1) are both slidably connected to the sliding frame (2); the upper side of the front part of the test bench (1) is connected to the connecting frame (3); the upper part of the connecting frame (3) is connected to the camera (4); the upper part of the sliding frame (2) is connected to the torsion motor (5); the output shaft of the torsion motor (5) is connected to the rotating disk (6); and the rotating disk (6) is provided with a clamping mechanism (7); The clamping mechanism (7) comprises a rotating rod (71), a housing (72), a clamping block (73), a small gear (74), a large gear (75), a support frame (76) and a locking member (77); the upper part of the rotating disk (6) is rotatably connected to the rotating rod (71); the rotating disk (6) is connected to the housing (72); the rotating rods (71) are all inserted into the interior of the adjacent housing (72); the rotating rods (71) are all connected to the small gear (74); the lower part of the housing (72) is slidably connected to a plurality of clamping blocks (73); the inner side of the lower part of the housing (72) is rotatably connected to the large gear (75); the clamping blocks (73) are all The large gears (75) are slidably connected to the adjacent large gears (75), and the large gears (75) are meshed with the small gears (74). The upper side of the housing (72) that is close to each other is connected with a support frame (76), and the support frame (76) is rotatably connected with a locking member (77). The locking member (77) is engaged with the adjacent rotating rod (71). The rotating rod (71) rotates to drive the small gear (74) to rotate, and the small gear (74) rotates to drive the large gear (75) to rotate. The large gear (75) rotates to control the clamping blocks (73) to approach or move away from each other. When the clamping blocks (73) are close to each other, the cable can be clamped and fixed.
2. A wiring harness assembly torsional fatigue testing device according to claim 1, characterized in that: A limit frame is provided on the upper rear side of the test bench (1).
3. A wiring harness assembly torsional fatigue testing device as claimed in claim 2, characterized in that: The twisting motor (5) controls the rotating disk (6) to rotate in opposite directions.
4. A wiring harness assembly torsional fatigue testing device as claimed in claim 3, characterized in that: A rotating ring is provided on the side of the rotating rods (71) that are close to each other, which facilitates the rotation of the rotating rods (71) and also facilitates the locking member (77) to lock the rotating rods (71).
5. A wiring harness assembly torsional fatigue testing device as claimed in claim 4, characterized in that: The invention also comprises a moving mechanism (8), the moving mechanism (8) comprising a servo motor (81), a support block (82) and a bidirectional screw rod (83), the servo motor (81) is connected to the right side of the test bench (1), the support block (82) is connected to the upper middle side of the test bench (1), the bidirectional screw rod (83) is rotatably connected to the support block (82), the bidirectional screw rod (83) is connected to the output shaft of the servo motor (81), the sliding frame (2) is threadedly connected to the bidirectional screw rod (83), the output shaft of the servo motor (81) rotates to drive the bidirectional screw rod (83) to rotate, and the bidirectional screw rod (83) rotates to control the sliding frame (2) to move closer to or farther from each other to adapt to the change in length after the wiring harness assembly is twisted and released.