Multimedia wire harness test equipment

Abstract

The utility model discloses multimedia wire harness testing equipment, which relates to the technical field of wire harness testing and comprises two bottom plates, limiting frames are symmetrically and fixedly arranged on the upper surfaces of the bottom plates, a support is fixedly arranged on the upper surfaces of the bottom plates, supporting plates are symmetrically and fixedly arranged on the support, and a bidirectional lead screw is rotatably arranged between the two supporting plates. A motor is fixedly arranged on the outer side of one supporting plate, the output end of the motor penetrates through the supporting plate and is fixedly connected with a two-way lead screw, the outer surface of the two-way lead screw is symmetrically sleeved with moving blocks in a threaded mode, the lower surfaces of the moving blocks are detachably connected with connecting rods, cross rods are fixedly arranged at the lower ends of the connecting rods, and arc-shaped clamping rods are fixedly arranged on the inner sides of the cross rods; the multimedia wire harness test equipment provided by the utility model can realize extrusion test and bending test at the same time, provides richer data support for wire harness quality detection and product research and development, and meets the diversified requirements of the market for high-quality wire harness test.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of wiring harness test, concretely to a multimedia wiring harness test equipment. BACKGROUND

[0002] In the complex architecture of modern electronic equipment, wiring harness as the key link of signal and energy transmission, its reliability is directly related to system performance, especially the wiring harness involving coaxial switch, coaxial RF switch, electronic matrix switch, high-voltage equipment switch and mechanical RF coaxial switch, etc. core components, after production, need to be tested by a series of tests to see if it is qualified.

[0003] However, the prior art still has the following problems:

[0004] Firstly, the multimedia wiring harness test equipment of the prior art is mostly inconvenient for testing the compression resistance of the wiring harness. In the interior of the automobile and electronic equipment, the wiring harness may be extruded by the surrounding components. If the wiring harness manufacturer cannot accurately evaluate the compression resistance of the product, the wiring harness with substandard compression resistance may flow into the market. These wiring harnesss are prone to damage due to extrusion in actual use, affecting the normal operation of the electronic equipment, reducing the overall quality and reliability of the product, and increasing the product after-sales maintenance cost and customer complaint risk.

[0005] Firstly, the multimedia wiring harness test equipment of the prior art is usually inconvenient for testing the bending ability of the wiring harness. If the wiring harness is used in a frequent bending scenario, internal wire breakage, insulation layer damage, and other problems may occur prematurely, resulting in shortened service life of the electronic equipment. If the bending performance of the wiring harness in the foldable electronic equipment is poor, the equipment will malfunction after a limited number of folds, reducing user experience.

[0006] To solve the above problems, the inventor proposes a multimedia wiring harness test equipment to solve the above problems. CONTENT OF THE UTILITY MODEL

[0007] In order to solve the problem that the multimedia wiring harness test equipment is inconvenient for testing the compression resistance and bending ability of the wiring harness; the utility model aims to provide a multimedia wiring harness test equipment.

[0008] To solve the above technical problems, the utility model discloses the following technical scheme: A kind of multimedia wire harness test equipment, including two bottom plates, the upper surface of the bottom plate is symmetrically fixed with limit frame, the upper surface of the bottom plate is fixed with support, the support is symmetrically fixed with support plate, and two support plates are rotatably equipped with bidirectional screw, and one of support plate is fixed with motor on the outside, the output of the motor is fixed with bidirectional screw and is connected, the outer surface of the bidirectional screw is symmetrically screwed with moving block, the lower surface of the moving block is detachably connected with connecting rod, the lower end of the connecting rod is fixed with cross bar, the inner side of the cross bar is fixed with arc clamping rod, and the inner side of the arc clamping rod is installed with pressure sensor.

[0009] Preferably, one of the bottom plates is fixed with a bending test plate near the side of the other bottom plate, the other bottom plate is fixed with a support rod on one side, the upper surface of the bending test plate is symmetrically fixed with a stand, the bending test plate is fixed with a support rod near the side of the other bottom plate, and the support rod is fixed with a limiting column on one side, and the lower end of the limiting column movably penetrates the support rod.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] 1, the utility model discloses the position of moving block is adjusted to the interval of arc clamping rod by motor drive bidirectional screw, can accurate control clamping rod interval, adapt to the fixing demand of a plurality of different specifications wire harness, with the accurate control of motor and the real-time feedback of pressure sensor, accurate setting and monitoring extrusion degree of pressure can be ensured, the consistency and accuracy of each extrusion test, can be aimed at different types of wire harness's compression standard, flexible adjustment extrusion test parameter, provide guarantee for obtaining reliable extrusion test data.

[0012] 2, the utility model discloses bending test plate, can accurately simulate the different degrees of bending that multimedia wire harness can encounter in actual use scene, whether it is small bending or relatively large angle distortion, can be realized through setting specific rotation angle, provides reliable means for detecting the performance change of wire harness under various real bending states. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 It is the whole structure schematic diagram of the utility model.

[0015] Figure 2 The utility model bracket and part structure explosion map.

[0016] Figure 3 The utility model two cross bars and arc clamping rod close structure schematic view.

[0017] Figure 4 The utility model two bottom plate between connecting structure explosion map.

[0018] In the drawing: 1, bottom plate;11, limit frame;2, support;21, support plate;22, two-way screw;23, motor;24, moving block;25, connecting rod;26, cross bar;27, arc clamping rod;28, connecting plate;29, slide bar;3, bending test plate;31, stand;32, support rod;33, limit column;34, support rod;35, limit disc. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Embodiment: as Figures 1-4The utility model provides a kind of multimedia wire harness test equipment, including two bottom plate 1, bottom plate 1 is made of high-strength aluminum alloy material, with good rigidity and stability, can effectively support the components of equipment, while reducing overall weight, the upper surface of bottom plate 1 is symmetrically fixed with limit frame 11, the upper surface of bottom plate 1 is fixed with support 2, support 2 is symmetrically fixed with support plate 21, and two support plates 21 are rotatably provided with bidirectional screw 22, the outside of one support plate 21 is fixed with motor 23, the output end of motor 23 penetrates support plate 21 and is fixedly connected with bidirectional screw 22, the outer surface of bidirectional screw 22 is symmetrically screwed with moving block 24, the upper surface of moving block 24 is fixed with slide 29, and slide 29 is clamped in support 2, the moving block 24 on the outer surface of one bidirectional screw 22 is respectively screwed at different screw directions on the outer surface of bidirectional screw 22, the lower surface of moving block 24 is detachably connected with connecting rod 25, the lower end of connecting rod 25 is fixed with cross bar 26, the inner side of cross bar 26 is fixed with arc-shaped clamp rod 27, four arc-shaped clamp rods 27 are arranged on one cross bar 26, and four arc-shaped clamp rods 27 are distributed at equal intervals, four arc-shaped clamp rods 27 on both sides are alternately distributed, wire harness is placed in limit frame 11, after motor 23 starts, its output end drives bidirectional screw 22 to rotate, since the screw direction of the outer surface of bidirectional screw 22 is opposite, under the action of screw, two moving blocks 24 will move towards or reversely along bidirectional screw 22, slide 29 on moving block 24 is clamped in support 2, to ensure that moving block 24 can only move stably along straight line, moving block 24 is connected with cross bar 26 through connecting rod 25, and arc-shaped clamp rod 27 on the inner side of cross bar 26 can be used to clamp multimedia wire harness, by forward and reverse rotation of motor 23, the distance between two arc-shaped clamp rods 27 can be flexibly adjusted, to adapt to the fixing needs of wire harness of different lengths and specifications.

[0021] The upper end of connecting rod 25 is clamped on the corresponding moving block 24, the two sides of connecting rod 25 are symmetrically fixed with connecting plate 28, and the connecting plate 28 and the corresponding moving block 24 are connected by bolt cooperation, the connecting rod 25 and the moving block 24 are connected by detachable clamping and bolt cooperation, to facilitate the replacement of different types or specifications of structures, to meet diversified testing needs, and also facilitate the maintenance of equipment and the replacement of parts, according to extrusion test requirements, the clamp rod with special texture or shape on the surface can be replaced, to enhance the extrusion effect and the ability to simulate real scene

[0022] The inner side of the arc-shaped clamping rod 27 is provided with a pressure sensor, which is a mature technology, and will not be described in detail here. After the wiring harness is fixed, the motor 23 is continuously controlled to operate, so that the two moving blocks 24 continue to move towards each other, and the arc-shaped clamping rod 27 further approaches, and the extrusion force applied to the wiring harness gradually increases. The pressure sensor monitors the extrusion force value in real time and feeds back to the equipment control system. When the extrusion force reaches the preset test pressure value, the pressure is maintained for a period of time to simulate the extreme extrusion condition that the wiring harness may withstand in actual application. In this process, whether the appearance of the wiring harness is deformed, damaged or abnormal is observed to judge the extrusion resistance of the wiring harness.

[0023] One of the bottom plates 1 is fixedly provided with a bending test plate 3 close to one side of the other bottom plate 1, the other bottom plate 1 is fixedly provided with a support rod 34, the upper surface of the bending test plate 3 is fixedly provided with a vertical column 31 in a symmetrical manner, the vertical column 31 is vertically welded on the upper surface of the bending test plate 3, the bending test plate 3 is fixedly provided with a support rod 32 close to one side of the other bottom plate 1, and one side of the support rod 32 is fixedly provided with a limiting column 33, and the lower end of the limiting column 33 is movably penetrated through the support rod 34, the lower end of the limiting column 33 is fixedly provided with a limiting disc 35, and the upper surface of the limiting disc 35 is movably attached to the lower surface of the support rod 34. When the multimedia wiring harness needs to be tested for bending, the two ends of the wiring harness are fixed in the arc-shaped clamping rod 27 on the two bottom plates, and the middle part of the wiring harness is located between the two vertical columns 31. At this time, the bottom plate 1 connected with the support rod 34 can rotate on one side of the bending test plate 3 around the limiting column 33, so as to realize the bending of the wiring harness. By controlling the rotation angle of the rotary drive device, different degrees of bending can be accurately simulated to detect the performance change of the wiring harness under different bending angles.

[0024] Working principle: place the wiring harness in the limiting frame 11, start the motor 23, and its output end drives the bidirectional screw rod 22 to rotate. Due to the opposite screw thread directions on the outer surface of the bidirectional screw rod 22, the two moving blocks 24 will move towards or away from each other under the action of the screw thread. The sliding bar 29 on the moving block 24 is clamped in the support 2 to ensure that the moving block 24 can only move smoothly along a straight line. The moving block 24 is connected with the cross rod 26 through the connecting rod 25, and the arc-shaped clamping rod 27 on the inner side of the cross rod 26 can be used to clamp the multimedia wiring harness. By forward and reverse rotation of the motor 23, the distance between the two arc-shaped clamping rods 27 can be flexibly adjusted to adapt to the fixing requirements of wiring harnesses of different lengths and specifications.

[0025] After the completion of the wiring harness fixed, continue to control the motor 23 operation, so that both sides of the moving block 24 continue to move towards the arc-shaped clamp rod 27, further close, as the clamp rod spacing decreases, the pressure exerted on the wiring harness gradually increases, pressure sensor real-time monitoring of the pressure value, and feedback to the device control system, when the pressure reaches the preset test pressure value, keep the pressure for a period of time, simulate the wiring harness in the actual application may be subjected to extreme extrusion situation, in the process, to observe the appearance of the wiring harness deformation, damage and other abnormalities, so as to judge the ability of the wiring harness resistance to extrusion;

[0026] When the need for multimedia wiring harness bending test, the two ends of the wiring harness is fixed in the arc-shaped clamp rod 27 on the two bottom plate, wiring harness in the middle of the two columns 31, the strut 34 connected to the bottom plate 1 can be rotated around the limiting column 33 in the bending test plate 3 side, so as to realize the bending of the wiring harness, by controlling the rotation angle of the rotating drive device, can accurately simulate different degrees of bending, detect the performance change of the wiring harness under different bending angle.

[0027] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and its equivalent technology, the present application also intends to include these changes and variations.

Claims

1. A multimedia wiring harness testing device, comprising two base plates (1), characterized in that: A limiting frame (11) is symmetrically fixed on the upper surface of the base plate (1). A bracket (2) is fixed on the upper surface of the base plate (1). A support plate (21) is symmetrically fixed on the support plate (2). A two-way screw (22) is rotatably provided between the two support plates (21). A motor (23) is fixed on the outer side of one of the support plates (21). The output end of the motor (23) passes through the support plate (21) and is fixedly connected to the two-way screw (22). A moving block (24) is symmetrically threaded on the outer surface of the two-way screw (22). A connecting rod (25) is detachably connected to the lower surface of the moving block (24). A crossbar (26) is fixed at the lower end of the connecting rod (25). An arc-shaped clamping rod (27) is fixed on the inner side of the crossbar (26). A pressure sensor is installed on the inner side of the arc-shaped clamping rod (27).

2. The multimedia wiring harness testing device as described in claim 1, characterized in that: A bending test plate (3) is fixedly provided on one side of the base plate (1) near the other base plate (1), and a support rod (34) is fixedly provided on one side of the other base plate (1). A column (31) is symmetrically fixed on the upper surface of the bending test plate (3). A support rod (32) is fixedly provided on the side of the bending test plate (3) near the other base plate (1), and a limiting column (33) is fixedly provided on one side of the support rod (32), and the lower end of the limiting column (33) movably passes through the support rod (34).

3. The multimedia wiring harness testing device as described in claim 1, characterized in that: The movable blocks (24) located on the outer surface of one of the bidirectional lead screws (22) are respectively threaded onto different thread directions on the outer surface of the bidirectional lead screw (22).

4. The multimedia wiring harness testing device as described in claim 1, characterized in that: The upper end of the connecting rod (25) is engaged on the corresponding moving block (24). Connecting plates (28) are symmetrically fixed on both sides of the connecting rod (25), and the connecting plates (28) and the corresponding moving blocks (24) are connected by bolts.

5. The multimedia wiring harness testing device as described in claim 1, characterized in that: The upper surface of the movable block (24) is fixedly provided with a slide bar (29), and the slide bar (29) is locked in the bracket (2).

6. The multimedia wiring harness testing device as described in claim 1, characterized in that: There are four arc-shaped clamps (27) located on one of the crossbars (26), and the four arc-shaped clamps (27) are distributed at equal intervals.

7. The multimedia wiring harness testing device as described in claim 6, characterized in that: The four arc-shaped clamps (27) located on both sides are arranged alternately.

8. The multimedia wiring harness testing device as described in claim 2, characterized in that: The lower end of the limiting post (33) is fixedly provided with a limiting plate (35), and the upper surface of the limiting plate (35) is movably attached to the lower surface of the support rod (34).

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