A wear resistance detection device for an electronic wire harness

Abstract

The present invention discloses a wear resistance detection device for an electronic wire harness, which relates to the technical field of wear resistance detection and includes: a frame on which tracks are distributed; two symmetrically arranged telescopic devices fixed to the frame, and a rotary clamping assembly is fixed to the telescopic end of the telescopic device, and the two rotary clamping assemblies jointly clamp the electronic wire harness to be detected; a grinding and detection assembly is arranged between the two rotary clamping assemblies, and the grinding and detection assembly includes: a fixed seat fixed to the frame, a grinding jet chamber is fixed on the fixed seat, and both ends of the grinding jet chamber have extension cylinders for the electronic wire harness to pass through; a disk body located in the grinding jet chamber, two symmetrically arranged grinding rollers are fixed on the disk body, and the disk body can rotate around its own axis and move along its own axis. The grinding method of this device is diverse, can simulate different wear conditions, and can achieve more accurate detection.

Description

Technical Field

[0001] The present invention relates to the technical field of wear resistance detection, and particularly to a wear resistance detection device for electronic wire harnesses. Background Art

[0002] Today, with the high integration and miniaturization of electronic devices, as a core component for signal transmission and power supply inside the device, the reliability of electronic wire harnesses is directly related to the stability and service life of the entire system. Among them, wear resistance, as one of the key indicators to measure the quality of electronic wire harnesses, plays a crucial role in resisting mechanical wear during long-term use and preventing signal interruption or short circuit.

[0003] Currently, although the existing wear resistance detection devices for electronic wire harnesses meet the basic test requirements to a certain extent, their technical limitations are becoming increasingly prominent. These devices generally adopt relatively complex mechanical structure designs, aiming to evaluate the wear resistance of wire harnesses by simulating friction behaviors under specific conditions.

[0004] However, the most significant problem of the existing detection devices lies in the singularity of their detection methods. Most devices can only apply frictional force to the wire harness from a single direction (such as linear reciprocating or circular motion). Although this simplified test mode can initially verify the wear resistance of the wire harness under specific conditions, it seriously deviates from the complex friction environment of electronic wire harnesses in actual applications.

[0005] In real working scenarios, electronic wire harnesses may be subjected to frictional forces from multiple directions and different angles, including but not limited to friction in bending, twisting, and stretching states, as well as interactions with contact surfaces of different materials and shapes. Due to design limitations, the existing devices cannot comprehensively simulate these complex and variable friction situations, resulting in a large deviation between the test results and the actual use performance.

[0006] Due to the singularity of the detection method, the existing devices can often only provide wear resistance data of the wire harness under specific conditions, and cannot comprehensively evaluate the comprehensive performance of the wire harness under different friction conditions. This not only limits the optimization space of product design but also increases the risk of failures caused by insufficient wear resistance.

[0007] Therefore, it is necessary to provide a wear resistance detection device for electronic wire harnesses to solve the above problems. Summary of the Invention

[0008] To solve the above problems, the present invention provides the following technical solution: a wear resistance detection device for an electronic wire harness, comprising: a frame on which tracks are distributed; two symmetrically arranged telescopic devices fixed to the frame, and a rotary clamping assembly is fixed to the telescopic end of the telescopic device. The two rotary clamping assemblies jointly clamp the electronic wire harness to be detected; a grinding and detection assembly is arranged between the two rotary clamping assemblies. The grinding and detection assembly includes: a fixed seat fixed to the frame, a grinding jet chamber fixed to the fixed seat, and extension cylinders are provided at both ends of the grinding jet chamber for the electronic wire harness to pass through; a disc body located in the grinding jet chamber, and two symmetrically arranged grinding rollers are fixed to the disc body. The disc body can rotate around its own axis and move along its own axis.

[0009] Preferably, a telescopic cylinder fixed to the fixed seat is further arranged at the inner bottom of the grinding jet chamber. A rotary cylinder is fixed to the vertical telescopic end of the telescopic cylinder, and the disc body is fixed to the rotary end of the rotary cylinder.

[0010] Preferably, the electronic wire harness passes through the two grinding rollers in an S-shaped path.

[0011] Preferably, a jet detection assembly is further fixed to one side of the grinding and detection assembly. The jet detection assembly includes: a base fixed to the frame; a sliding seat movably arranged vertically on the base; a limiting seat connected to the lower part of the sliding seat by an elastic member; two symmetrically arranged jet pipes installed below the limiting seat; and jet holes corresponding to the jet pipes are opened at the top of the grinding jet chamber.

[0012] Preferably, the two jet pipes are respectively a linear jet structure and a conical jet structure. Among them, a spiral diversion groove is provided on the inner wall of the jet pipe with a conical jet structure.

[0013] Preferably, the rotary clamping assembly includes: a moving seat slidably arranged on the track and driven by the telescopic device; a rotating cylinder rotatably arranged in the moving seat and used for clamping the electronic wire harness.

[0014] Preferably, a driven wheel is further fixed to the end of the rotating cylinder, and a motor for driving the driven wheel to rotate is fixed to the moving seat.

[0015] Preferably, support guide cylinders are further arranged at both ends of the grinding and detection assembly. Universal balls are installed on the inner wall of the support guide cylinder at circumferentially spaced intervals for universal support of the electronic wire harness. An adjusting seat is fixed to the bottom of the support guide cylinder, and the adjusting seat is movably arranged on the track.

[0016] Compared with the prior art, the present invention provides a wear resistance detection device for electronic wire harnesses, which has the following beneficial effects: In the present invention, the dynamic wear mechanism of the electronic wire harness under the working conditions of stretching, torsion, and bending is accurately restored. Through the coordinated control of the telescopic device and the rotating cylinder, the quantitative adjustment of the motion parameters is realized, breaking through the limitations of traditional static detection.

[0017] In the present invention, multiple modes can operate independently or be combined and loaded to construct a variety of typical test scenario libraries, covering cross-field application requirements such as automotive wire harnesses and industrial cables, providing full-life cycle data support for the iterative design of wire harnesses.

[0018] In the present invention, through the dual-drive principle of "mechanical motion + fluid impact", the technical leap from single wear resistance verification to complex system-level reliability assessment is realized, providing a more reliable test solution for the research and development of electronic wire harnesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view structural schematic diagram of a wear resistance detection device for an electronic wire harness;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of a wear resistance detection device for an electronic wire harness;

[0021] Figure 3 It is a structural schematic diagram of a grinding detection component in a wear resistance detection device for an electronic wire harness;

[0022] Figure 4 It is a structural schematic diagram of a jet detection component in a wear resistance detection device for an electronic wire harness;

[0023] Figure 5 It is a structural schematic diagram of a rotating clamping component in a wear resistance detection device for an electronic wire harness;

[0024] In the figure: 1, frame; 2, track; 3, telescopic device; 4, rotating clamping component; 5, grinding detection component; 6, support guide cylinder; 7, jet detection component; 41, moving seat; 42, rotating cylinder; 43, motor; 44, driven wheel; 51, grinding jet chamber; 52, jet hole; 53, fixed seat; 54, telescopic cylinder; 55, rotating cylinder; 56, grinding roller; 61, universal ball; 62, adjusting seat; 71, base; 72, sliding seat; 73, limiting seat; 74, jet pipe. DETAILED DESCRIPTION OF THE INVENTION

[0025] In the description, claims, and the above accompanying drawing legends of this application, the terms "first", "second", etc. are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that these terms can be interchanged under appropriate circumstances, which is merely a way of distinguishing objects with the same attributes when describing the embodiments of this application. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, product, or device comprising a series of units need not be limited to those units, but may include other units not explicitly listed or inherent to these processes, methods, products, or devices.

[0026] Embodiment: Please refer to Figures 1 - 5 , in an embodiment of the present invention, a wear resistance detection device for an electronic wire harness is provided, including: a frame 1, on which tracks 2 are distributed; two symmetrically arranged expanders 3, and the expander 3 can be any one of an electric telescopic rod, a cylinder, a hydraulic cylinder, and a lead screw nut pair mechanism.

[0027] The expander 3 is fixed on the frame 1, and a rotary clamping assembly 4 is fixed to the telescopic end of the expander 3. The two rotary clamping assemblies 4 jointly clamp the electronic wire harness to be detected; a grinding and detection assembly 5 is arranged between the two rotary clamping assemblies 4. The grinding and detection assembly 5 includes: a fixed seat 53, which is fixed on the frame 1. A grinding jet chamber 51 is fixed on the fixed seat 53. Both ends of the grinding jet chamber 51 have extension cylinders for the electronic wire harness to pass through; a disc body, which is located in the grinding jet chamber 51. Two symmetrically arranged grinding rollers 56 are fixed on the disc body. The disc body can rotate around its own axis and move along its own axis.

[0028] In addition, a jet detection assembly 7 is also fixed on one side of the grinding and detection assembly 5.

[0029] With such an arrangement, this device can achieve multiple mode detections (only some examples are given below): First, axial wear detection; keep the position of the grinding roller 56 unchanged, and the two expanders 3 work simultaneously to control the rotary clamping assembly 4 to move horizontally along the track 2. The rotary clamping assembly 4 clamps the electronic wire harness and makes it axially move between the grinding rollers 56 at a certain speed. The grinding roller 56 axially grinds the surface of the electronic wire harness to simulate the wear condition of the electronic wire harness caused by axial movement during actual use.

[0030] Second, circumferential wear detection: Keep the position of the grinding roller 56 unchanged, and the two rotating clamping components 4 rotate synchronously. The rotating clamping components 4 clamp the electronic wire harness and rotate it around its own axis. During the rotation of the electronic wire harness, it comes into contact with the grinding roller 56, and the grinding roller 56 grinds the circumferential surface of the electronic wire harness to achieve circumferential wear detection. It can detect the wear resistance of the circumferential direction of the electronic wire harness and is suitable for the situation where the electronic wire harness is used near rotating components.

[0031] Third, point wear detection: Keep the position of the electronic wire harness unchanged, drive the disk body to move vertically along its own axis, and drive the grinding roller 56 to move vertically. The grinding roller 56 contacts and grinds the surface of the electronic wire harness to achieve point wear detection of the electronic wire harness. It can simulate the point wear caused by local stress during the actual use of the electronic wire harness.

[0032] Fourth, jet wear detection: On the basis of the above detections, the jet detection component 7 can be cooperated to simulate a more severe fluid wear environment.

[0033] Fifth, bending wear detection: On the basis of the above detections, the disk body is rotated by a certain angle, and with the limiting effect of the two grinding rollers 56, the electronic wire harness is bent, so as to simulate the wear situation of the electronic wire harness in the bent state.

[0034] Sixth, torsional wear detection: On the basis of the above detections, by adjusting the relative rotation angle of the two rotating clamping components 4, the electronic wire harness is twisted. In this way, the wear resistance of the electronic wire harness in the torsional state can be evaluated, providing a reliable basis for the use of the electronic wire harness under complex working conditions.

[0035] That is to say, through the combination of various working modes, this device can comprehensively simulate various wear situations of the electronic wire harness in actual use, including axial, torsional, circumferential, point and bending wear, as well as jet wear. Its advantages lie in rich detection functions, high simulation authenticity and strong operation flexibility, and it can provide comprehensive and accurate basis for the quality evaluation, service life prediction and protection design of the electronic wire harness.

[0036] Specifically, a telescopic cylinder 54 fixed to the fixed seat 53 is further arranged at the inner bottom of the grinding jet bin 51, a rotating cylinder 55 is fixed on the vertical telescopic end of the telescopic cylinder 54, and the rotating end of the rotating cylinder 55 fixes the disk body.

[0037] When the rotating cylinder 55 works, the rotating end of the rotating cylinder 55 drives the disk body to rotate around its own axis by a certain angle, thereby changing the orientation of the grinding roller 56, so that the electronic wire harness can contact the grinding roller 56 in different bending states.

[0038] Among them, during jet wear detection, the jet detection component 7 sprays abrasive through the jet holes 52 towards the grinding area. The position and angle adjustment of the disk body can ensure that the abrasive can be accurately sprayed onto the contact area between the electronic wire harness and the grinding roller 56.

[0039] In this embodiment, the electronic wire harness passes through the two grinding rollers 56 in an S-shaped path.

[0040] The S-shaped path means that the electronic wire harness passes through the two grinding rollers 56 in two arcs. Additionally, the arc curvature can be adjusted by rotating the disk body.

[0041] Different arc curvatures can simulate the states of the electronic wire harness when bypassing obstacles of different shapes and sizes, thereby more accurately evaluating the wear resistance of the electronic wire harness during actual use.

[0042] The S-shaped path enables the electronic wire harness to contact the grinding roller 56 at different curvatures and positions, capable of comprehensively detecting the wear resistance of the electronic wire harness under different stress conditions. Different arc curvatures will cause changes in the contact pressure and angle between the electronic wire harness and the grinding roller 56, thereby enabling the discovery of potential wear problems of the electronic wire harness under different stress states.

[0043] In this embodiment, the jet detection component 7 includes: a base 71 fixed to the frame 1; a slide seat 72 movably arranged vertically on the base 71; a limit seat 73 elastically connected below the slide seat 72; two symmetrically arranged jet pipes 74, and the jet pipes 74 are (rotatably) installed below the limit seat 73;

[0044] Jet holes 52 corresponding to the jet pipes 74 are provided at the top of the grinding jet chamber 51.

[0045] The slide seat 72 is movably arranged vertically on the base 71. This vertical movement design provides a height adjustment function for the jet detection component 7, which can adjust the vertical distance between the jet pipe 74 and the grinding area according to different detection requirements, thereby changing the jet coverage range to adapt to electronic wire harnesses of different specifications and detection requirements.

[0046] During the process of downwardly adjusting the slide seat 72, when the limit seat 73 contacts the grinding detection component 5, it indicates that the slide seat 72 has reached the lower limit position. Among them, the elastic member can achieve buffering to prevent damage caused by collision.

[0047] In addition, the two jet pipes 74 are respectively a linear jet structure and a conical jet structure. Among them, a spiral diversion groove is provided on the inner wall of the jet pipe 74 with a conical jet structure.

[0048] The linear jet structure's jet tube 74 ejects a straight jet, offering strong directionality and focus. This jetting method precisely directs abrasive or coolant to a specific location within the grinding area, making it ideal for accurately detecting localized wear on electronic wiring harnesses. For example, when testing the wear resistance of a specific bend or severely worn area within an electronic wiring harness, the linear jet structure ensures that the jet directly impacts that area, enhancing the specificity of the test.

[0049] The conical jet structure, however, emits a conical jet stream from the jet tube 74, which diffuses the stream across a larger grinding area. This jetting method distributes the abrasive or coolant more widely across the contact surface between the electron beam and the grinding roller 56, making it suitable for comprehensive testing of the overall wear of the electron beam. For example, during routine wear resistance testing, the conical jet structure ensures that the jet stream reaches the majority of the grinding area, enhancing the comprehensiveness of the test.

[0050] In this embodiment, the rotating clamping assembly 4 includes: a movable seat 41, which is slidably arranged on the track 2 and driven by the telescope 3; a rotating drum 42, which is rotatably arranged in the movable seat 41, and the rotating drum 42 is used to clamp the electronic wire harness.

[0051] For example, multiple elastic clips are positioned within the drum 42, evenly distributed around its axis. One end of each clip is fixed to the inner wall of the drum 42, while the other end is free and has a certain degree of elastic deformation. Notches corresponding to the elastic clips are provided in the drum 42 wall to facilitate entry of the electronic harness into the clamping area.

[0052] For example, an inflatable airbag is provided inside the rotating drum 42, and the airbag is connected to an external inflation device. A passage for the electronic wire harness to pass through is provided on the wall of the rotating drum 42, and the airbag is located on one side of the passage.

[0053] Furthermore, a driven wheel 44 is fixed to the end of the rotating drum 42 , and a motor 43 for driving the driven wheel 44 to rotate is fixed to the movable base 41 .

[0054] In this embodiment, support guide cylinders 6 are also provided at both ends of the grinding detection component 5. The inner wall of the support guide cylinder 6 is installed with universal balls 61 distributed at circumferential intervals for universally supporting the electronic wiring harness. An adjustment seat 62 is fixed to the bottom of the support guide cylinder 6, and the adjustment seat 62 is movably set on the track 2.

[0055] The electronic wiring harness is passed through support guide 6. Universal ball transfers 61 allow the harness to pass easily and move flexibly within the support guide 6. The rolling action of universal ball transfers 61 reduces friction between the harness and the inner wall of support guide 6, ensuring smooth movement. Furthermore, by adjusting the position of support guide 6 by moving adjustment seat 62 on track 2, the support and guidance of the harness can be optimized, ensuring smooth testing.

[0056] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. An abrasion resistance detection device for an electronic wire harness, characterized in that, Including: A frame (1) with tracks (2) distributed thereon; Two symmetrically arranged telescopic devices (3) fixed to the frame (1), and a rotary clamping assembly (4) is fixed to the telescopic end of the telescopic device (3). The two rotary clamping assemblies (4) jointly clamp the electronic wire harness to be detected; A grinding and detection assembly (5) arranged between the two rotary clamping assemblies (4). The grinding and detection assembly (5) includes: A fixed seat (53) fixed to the frame (1). A grinding jet chamber (51) is fixed to the fixed seat (53). Both ends of the grinding jet chamber (51) have extension cylinders for the electronic wire harness to pass through; A disk body located in the grinding jet chamber (51). Two symmetrically arranged grinding rollers (56) are fixed to the disk body. The disk body can rotate around its own axis and move along its own axis; A jet detection assembly (7) is also fixed to one side of the grinding and detection assembly (5). The jet detection assembly (7) includes: A base (71) fixed to the frame (1); A sliding seat (72) movably arranged vertically on the base (71); A limit seat (73) connected to the lower part of the sliding seat (72) by an elastic member; Two symmetrically arranged jet pipes (74) installed below the limit seat (73); Jet holes (52) corresponding to the jet pipes (74) are opened at the top of the grinding jet chamber (51); Support guide cylinders (6) are also arranged at both ends of the grinding and detection assembly (5). Universal balls (61) are installed on the inner wall of the support guide cylinders (6) at circumferentially spaced intervals for universal support of the electronic wire harness. An adjustment seat (62) is fixed to the bottom of the support guide cylinders (6). The adjustment seat (62) is movably arranged on the track (2).

2. The wear resistance detection device for an electronic wire harness according to claim 1, characterized in that, A telescopic cylinder (54) fixed to the fixed seat (53) is also arranged at the inner bottom of the grinding jet chamber (51). A rotary cylinder (55) is fixed to the vertical telescopic end of the telescopic cylinder (54). The rotary end of the rotary cylinder (55) fixes the disk body.

3. The wear resistance detection device for an electronic wire harness according to claim 1, characterized in that, The electronic wire harness passes through the two grinding rollers (56) in an S-shaped path.

4. The abrasion resistance detection device for an electronic wire harness according to claim 1, wherein, The two jet pipes (74) are respectively a linear jet structure and a conical jet structure. Among them, a spiral diversion groove is provided on the inner wall of the conical jet structure jet pipe (74).

5. The wear resistance detection device for an electronic wire harness according to claim 1, characterized in that, The rotary clamping assembly (4) includes: A moving seat (41) slidably arranged on the track (2) and driven by the telescopic device (3); A rotating cylinder (42) rotatably arranged in the moving seat (41) and used for clamping the electronic wire harness.

6. The wear resistance detection device for an electronic wire harness according to claim 5, wherein A driven wheel (44) is also fixed to the end of the rotating cylinder (42). A motor (43) for driving the driven wheel (44) to rotate is fixed to the moving seat (41).

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