Abrasion resistance detection device for electronic wire harness

Abstract

The invention discloses a wear resistance detection device for an electronic wire harness, and relates to the technical field of wear resistance detection, and the wear resistance detection device comprises a rack on which a track is distributed; the two expansion pieces are symmetrically arranged, the expansion pieces are fixed to the rack, rotary clamping assemblies are fixed to the expansion ends of the expansion pieces, and the two rotary clamping assemblies jointly clamp an electronic wire harness to be detected; the polishing detection assembly is arranged between the two rotary clamping assemblies, the polishing detection assembly comprises a fixing base, the fixing base is fixed to the rack, a polishing jet flow bin is fixed to the fixing base, and extension cylinders are arranged at the two ends of the polishing jet flow bin so that the electronic wire harness can penetrate through the extension cylinders conveniently; and the disc body is located in the grinding jet flow bin, two symmetrically-arranged grinding rollers are fixed to the disc body, the disc body can rotate around the axis of the disc body and move along the axis of the disc body, the device is diversified in grinding mode, different abrasion conditions can be simulated, and more accurate detection can be achieved.

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 directly affects 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 can 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 in 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 on 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 arranged between the two rotary clamping assemblies, and the grinding and detection assembly includes: a fixed seat fixed on 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 disc located in the grinding jet chamber, and two symmetrically arranged grinding rollers are fixed on the disc, and the disc can rotate around its own axis and move along its own axis.

[0009] Preferably, a telescopic cylinder fixed on the fixed seat is further arranged at the inner bottom of the grinding jet chamber, a rotary cylinder is fixed on the vertical telescopic end of the telescopic cylinder, and the disc is fixed on 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 on one side of the grinding and detection assembly, and the jet detection assembly includes: a base fixed on the frame; a sliding seat movably arranged vertically on the base; a limit seat connected to the lower part of the sliding seat by an elastic member; two symmetrically arranged jet pipes installed below the limit seat; 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, and a spiral guide groove is arranged on the inner wall of the jet pipe with the 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 at the end of the rotating cylinder, and a motor for driving the driven wheel to rotate is fixed on 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 cylinders at circumferentially spaced intervals for universal support of the electronic wire harness, an adjustment seat is fixed at the bottom of the support guide cylinders, and the adjustment seat is movably arranged on the track.

[0016] Compared with the prior art, the present invention provides a wear resistance detection device for an electronic wire harness, having 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; Figure 2 It is a three-dimensional structural schematic diagram of a wear resistance detection device for an electronic wire harness; Figure 3 It is a structural schematic diagram of a grinding detection component in a wear resistance detection device for an electronic wire harness; Figure 4 It is a structural schematic diagram of a jet detection component in a wear resistance detection device for an electronic wire harness; Figure 5 It is a structural schematic diagram of a rotary clamping component in a wear resistance detection device for an electronic wire harness; In the figure: 1, frame; 2, track; 3, telescopic device; 4, rotary 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 EMBODIMENTS

[0020] In the description, claims and the above accompanying drawing description of this application, the terms "first", "second", etc. are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances, which is only 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, so that a process, method, system, product or device including a series of units does not have to be limited to those units, but may include other units not clearly listed or inherent to these processes, methods, products or devices.

[0021] 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.

[0022] The expander 3 is fixed on the frame 1, and a rotary clamping assembly 4 is fixed at 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, and 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 disk body, which is located in the grinding jet chamber 51, and two symmetrically arranged grinding rollers 56 are fixed on the disk body. The disk body can rotate around its own axis and move along its own axis.

[0023] In addition, a jet detection assembly 7 is also fixed on one side of the grinding and detection assembly 5.

[0024] By setting it like this, 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 situation of the electronic wire harness caused by axial movement during actual use.

[0025] 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 applicable to the situation where the electronic wire harness is used near rotating components.

[0026] 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 comes into contact with the surface of the electronic wire harness and grinds it 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.

[0027] Fourth, jet wear detection: On the basis of the above detections, the jet detection component 7 can be coordinated to simulate a more severe fluid wear environment.

[0028] Fifth, bending wear detection: On the basis of the above detections, the disk body is rotated by a certain angle, and by using 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.

[0029] 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.

[0030] 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 are 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.

[0031] 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.

[0032] When the rotating cylinder 55 works, the rotating end of the rotating cylinder 55 drives the disk body to rotate by a certain angle around its own axis, 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.

[0033] Among them, during jet wear detection, the jet detection component 7 sprays abrasives towards the grinding area through the jet holes 52. The position and angle adjustment of the disk body can ensure that the abrasives can be accurately sprayed onto the contact area between the electronic wire harness and the grinding roller 56.

[0034] In this embodiment, the electronic wire harness passes through the two grinding rollers 56 in an S-shaped path.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] In this embodiment, the jet detection component 7 includes: a base 71 fixed to the frame 1; a slide base 72 movably arranged vertically on the base 71; a limit base 73 connected to the lower part of the slide base 72 by an elastic member; two symmetrically arranged jet pipes 74, and the jet pipes 74 are (rotatably) installed under the limit base 73; The top of the grinding jet chamber 51 is provided with jet holes 52 corresponding to the jet pipes 74.

[0039] The slide base 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 pipes 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.

[0040] During the process of adjusting the slide base 72 downward, when the limit base 73 contacts the grinding detection component 5, it indicates that the slide base 72 has reached the lower limit position. Among them, the elastic member can achieve buffering to prevent damage caused by collision.

[0041] In addition, the two jet pipes 74 are respectively a linear jet structure and a conical jet structure. Among them, the inner wall of the jet pipe 74 with the conical jet structure is provided with a spiral flow guide groove.

[0042] Among them, the jet flow ejected from the jet tube 74 with a linear jet structure is in a straight line shape, having strong directivity and concentration. This jetting method can accurately jet abrasive or coolant to a specific position in the polishing area, and is applicable to the scenario of accurately detecting the local wear condition of the electronic wire harness. For example, when it is necessary to focus on detecting the wear resistance of a specific bent part or a severely worn area of the electronic wire harness, the linear jet structure can ensure that the jet flow directly acts on this part, improving the pertinence of the detection.

[0043] The jet flow ejected from the jet tube 74 with a conical jet structure is in a conical diffusion shape, which can cover a larger polishing area. This jetting method can make the abrasive or coolant more widely distributed on the contact surface between the electronic wire harness and the polishing roller 56, and is applicable to the scenario of comprehensively detecting the overall wear condition of the electronic wire harness. For example, during routine wear resistance detection, the conical jet structure can ensure that most of the polishing area is affected by the jet flow, improving the comprehensiveness of the detection.

[0044] In this embodiment, the rotary clamping assembly 4 includes: a moving seat 41, which is slidably arranged on the track 2 and is driven by the telescopic device 3; a rotating cylinder 42, which is rotatably arranged in the moving seat 41, and the rotating cylinder 42 is used for clamping the electronic wire harness.

[0045] For example: Multiple elastic clamping pieces are arranged inside the rotating cylinder 42, and these elastic clamping pieces are evenly distributed around the axis of the rotating cylinder 42. One end of the elastic clamping piece is fixed on the inner wall of the rotating cylinder 42, and the other end is a free end, having a certain elastic deformation ability. Notches corresponding to the elastic clamping pieces are opened on the cylinder wall of the rotating cylinder 42 to facilitate the entry of the electronic wire harness into the clamping area.

[0046] For example: An inflatable airbag is arranged inside the rotating cylinder 42, and the airbag is connected to an external inflation device. A channel for the electronic wire harness to pass through is opened on the cylinder wall of the rotating cylinder 42, and the airbag is located on one side of the channel.

[0047] Furthermore, a driven wheel 44 is fixed to the end of the rotating cylinder 42, and a motor 43 for driving the driven wheel 44 to rotate is fixed on the moving seat 41.

[0048] In this embodiment, support guide cylinders 6 are further arranged at both ends of the polishing and detecting assembly 5. Universal balls 61 are installed on the inner wall of the support guide cylinders 6 at circumferential intervals for universally supporting the electronic wire harness. An adjusting seat 62 is fixed to the bottom of the support guide cylinder 6, and the adjusting seat 62 is movably arranged on the track 2.

[0049] Pass the electronic wire harness through the support guide cylinder 6. Due to the existence of the universal ball 61, the electronic wire harness can easily pass through the support guide cylinder 6 and can move flexibly within the support guide cylinder 6. The rolling action of the universal ball 61 reduces the friction between the electronic wire harness and the inner wall of the support guide cylinder 6, ensuring the smooth movement of the electronic wire harness. In addition, by moving the position of the adjustment seat 62 on the track 2 to adjust the position of the support guide cylinder 6, the support and guiding effects on the electronic wire harness can be optimized, ensuring the smooth progress of the detection.

[0050] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes should be covered within the protection scope of the present invention.

Claims

1. A wear resistance detection device for an electronic wiring harness, characterized in that: include: A frame (1) having rails (2) arranged thereon; Two symmetrically arranged telescopes (3), the telescopes (3) being fixed on the frame (1), and a rotary clamping assembly (4) being fixed to the telescopic ends of the telescopes (3), the two rotary clamping assemblies (4) jointly clamping the electronic wire harness to be tested; A grinding detection component (5) is arranged between the two rotating clamping components (4), and the grinding detection component (5) comprises: A fixing seat (53) fixed on the frame (1), a grinding jet chamber (51) being fixed on the fixing seat (53), and two ends of the grinding jet chamber (51) having extension tubes for the electronic wire harness to pass through; A disc body is located in the grinding jet chamber (51), and 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.

2. The wear resistance detection device for electronic wiring harness according to claim 1, characterized in that: The inner bottom of the polishing jet chamber (51) is also provided with a telescopic cylinder (54) fixed on the fixing seat (53), 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 disc body.

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

4. The wear resistance detection device for electronic wiring harness according to claim 1, characterized in that: A jet detection component (7) is also fixed to one side of the grinding detection component (5), and the jet detection component (7) comprises: A base (71) fixed on the frame (1); A slide seat (72) which is vertically movably disposed on the base (71); A limit seat (73) connected to the bottom of the slide seat (72) by an elastic member; two symmetrically arranged jet tubes (74), the jet tubes (74) being installed below the limiting seat (73); The top of the polishing jet chamber (51) is provided with a jet hole (52) corresponding to the jet tube (74).

5. The wear resistance detection device for electronic wiring harness according to claim 4, characterized in that: The two jet tubes (74) are respectively a linear jet structure and a conical jet structure, wherein the inner wall of the jet tube (74) of the conical jet structure is provided with a spiral guide groove.

6. The wear resistance detection device for electronic wiring harness according to claim 1, characterized in that: The rotating clamping assembly (4) comprises: A movable seat (41) which is slidably disposed on the track (2) and driven by the telescopic device (3); A rotating drum (42) is rotatably disposed in the movable seat (41), and the rotating drum (42) is used to clamp the electronic wire harness.

7. The wear resistance detection device for electronic wiring harness according to claim 6, characterized in that: A driven wheel (44) is also 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 moving seat (41).

8. The wear resistance detection device for electronic wiring harness according to claim 1, characterized in that: Support guide cylinders (6) are also provided at both ends of the grinding detection assembly (5); universal balls (61) are installed on the inner wall of the support guide cylinder (6) and are distributed at intervals in the circumferential direction, so as to universally support the electronic wiring harness; an adjustment seat (62) is fixed to the bottom of the support guide cylinder (6); the adjustment seat (62) is movably arranged on the track (2).

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