Wire harness detection equipment for new energy automobile

Abstract

The invention relates to a wire harness detection device for a new energy automobile, and relates to the field of automobile maintenance equipment, the wire harness detection device comprises a detection platform, the output end of an oil cylinder is connected with the surface of a sleeving frame, the bottom of the sleeving frame is provided with a liquid storage box, and the bottom of the liquid storage box is connected with an elliptical nondestructive detection unit; the nondestructive detection unit comprises an infiltration detection area, cleaning detection areas and a scanning detection area, the tops of the two ends of the infiltration detection area are connected with the cleaning detection areas, the tops of the two cleaning detection areas are connected with the scanning detection area with the cross section being of an inverted-U-shaped structure, and a plurality of scanning lenses are embedded in the surface of the scanning detection area; in the wire harness detection equipment for the new energy automobile, the nondestructive detection unit can detect various cracks on the surface of the wire harness by using the operation of mark detection, and meanwhile, the abrasion of the surface of the wire harness caused by polishing and the reduction of the detection accuracy caused by the operation of jacking up and amplifying the cracks can be avoided.

Description

Technical Field

[0001] The present invention relates to a wire harness detection device for new energy vehicles, and in particular to a wire harness detection device for new energy vehicles applied in the field of automobile repair equipment. Background Art

[0002] During the use of new energy vehicles, the automotive wiring harness must ensure the transmission of electrical signals and the reliability of the connecting circuits, supply regular current values ​​to electronic and electrical components, avoid electromagnetic interference to surrounding circuits, and eliminate electrical short circuits. It plays an important role in the normal and safe driving of new energy vehicles. Therefore, it is necessary to regularly inspect and repair the wiring harness of new energy vehicles. During the inspection and maintenance process, the collected images are obtained by scanning the wiring harness sheath for comparison to determine whether the wiring harness sheath contains cracks. However, there are some very small cracks on the wiring harness sheath, which cannot be scanned out by conventional scanning, resulting in errors in the detection results.

[0003] In order to solve the above-described problems, a certain automobile wiring harness inspection equipment on the market adopts a design of magnifying the protruding side to check for cracks, and has a certain market share.

[0004] The specification of Chinese invention patent CN202310469359.2 discloses a wiring harness detection device for new energy vehicles. The first detection mechanism of the present invention drives two lower pads to slide in different directions through a first motor to straighten the wiring harness. The second detection mechanism drives the grinding belt to lift the wiring harness upward through a driving cylinder, so as to observe whether there are small transverse cracks on the sheath of the wiring harness. The second detection mechanism drives the grinding belt to move radially along the wiring harness through a second motor at the same time, and the third motor drives the grinding belt to move transversely, which is used to test the wear resistance of the wiring harness sheath. At the same time, the transverse cracks, radial cracks and oblique cracks of the wiring harness sheath are more obvious. Then, the first detection mechanism continues to drive the two lower pads to slide and pull the wiring harness in different directions through the first motor to test the tensile strength of the wiring harness according to the test requirements.

[0005] However, the above-mentioned wire harness detection equipment needs to use a grinding belt when performing wire harness surface crack detection, which will cause wear and damage to the wire harness to be detected, thereby causing surface wear and consumption of the normal wire harness, which is not conducive to subsequent use. At the same time, the design of lifting up to enlarge the cracks will cause the cracks to expand and even form new cracks on the originally normal wire harness surface, affecting and interfering with the accuracy of the detection results. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to ensure that the surface cracks of the automobile wiring harness to be inspected can be detected while reducing the use of grinding belts during maintenance, so as to avoid wear of the normal wiring harness during maintenance.

[0007] In order to solve the above problems, the present invention provides a wiring harness detection device for new energy vehicles, including a detection platform, a symmetrically arranged bracket seat is arranged on the top of the detection platform, a telescopic cylinder is installed on the surface of the bracket seat, and a clamping block is connected to the output end of the telescopic cylinder. A guide rail frame located between two bracket seats is installed on the top of the detection platform, a sliding rod is installed on the surface of the guide rail frame, a sleeve frame and an oil cylinder are slidably connected on the surface of the sliding rod, the output end of the oil cylinder is connected to the surface of the sleeve frame, a liquid storage box is installed at the bottom of the sleeve frame, and an elliptical non-destructive detection unit is connected to the bottom of the liquid storage box; The nondestructive testing unit includes a wet testing area, a clean testing area and a scanning testing area. The tops of both ends of the wet testing area are connected to the clean testing area. The tops of the two clean testing areas are connected to the scanning testing area with an inverted U-shaped cross-section. The surface of the scanning testing area is inlaid with a number of scanning lenses. A display screen is installed on the surface of one of the bracket seats, and the display screen is electrically connected to the scanning lens.

[0008] In the above-mentioned wire harness inspection equipment for new energy vehicles, the nondestructive inspection unit can detect various cracks on the surface of the wire harness by using the marking detection operation, while also avoiding the wear on the wire harness surface caused by grinding and the decrease in detection accuracy caused by the lifting and enlarging crack operation.

[0009] As a further improvement of the present application, the infiltration detection area is made of a U-shaped water-absorbing sponge, and the bottom of the infiltration detection area is covered and connected with a waterproof film, the cleaning detection area is made of an elastic plate, and the scanning detection area is made of an elastic material.

[0010] As a further improvement of the present application, the bottom of the liquid storage box is connected to a first electric telescopic rod and a second electric telescopic rod with a symmetrically arranged L-shaped cross-section, and the two first electric telescopic rods are located in the middle of the two second electric telescopic rods, the tail end of the first electric telescopic rod is connected to a first rubber plate, and the output end of the second electric telescopic rod is connected to a second rubber plate.

[0011] As a further improvement of the present application, the horizontal projection of the first rubber sheet is located on the surface of the cleaning detection area and close to the lower end of the cleaning detection area, and the horizontal projection of the second rubber sheet is located on the surface of the scanning detection area and close to the lower end of the scanning detection area.

[0012] As a further improvement of the present application, the bottom of the liquid storage box is connected to symmetrically arranged delivery tubes, and the tail ends of the delivery tubes extend through and into the interior of the infiltration detection area.

[0013] As a further improvement of the present application, a micro electric telescopic rod is installed through the bottom of the detection platform, and the output end of the micro electric telescopic rod is connected to the bottom of the bracket seat. As another improvement of the present application, a number of equidistantly arranged silicone strips are connected to the inner side of the cleaning and detection area, and the silicone strips and the surface of the cleaning and detection area form a transfer groove. A connecting hose is connected through the transfer grooves, and the tail end of the lowest connecting hose extends to the interior of the infiltration detection area.

[0014] As another improved supplement of the present application, the silicone strip is a C-shaped structure, and the length of the silicone strip is smaller than the cross-sectional width of the cleaning detection area.

[0015] As another improved supplement of the present application, the surface of the silicone strip is covered with a waterproof membrane layer, and the waterproof membrane layer is made of an anti-seepage membrane.

[0016] To sum up, when the non-destructive testing unit is used to perform non-destructive testing on the wiring harness of new energy vehicles, the surface of the wiring harness is first covered with paint in the infiltration detection area, and then the surface of the wiring harness coated with paint is cleaned in the cleaning detection area. During this process, if there are cracks on the surface of the wiring harness, paint marks will be formed. If the wiring harness is normal and there are no cracks, the paint on the surface of the wiring harness can be cleaned and will not affect subsequent use. Finally, the scanning detection area is used to scan the cleaned surface of the wiring harness. By detecting the situation of the paint marks on the surface of the wiring harness, it is determined whether there are cracks on the surface of the wiring harness and the related conditions of the cracks. This can avoid the possibility of reduced detection accuracy due to the jacking operation, and at the same time avoid the wear and damage to the surface of the wiring harness caused by the grinding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall appearance of the first embodiment of the present application; Figure 2 This is a side view of the first embodiment of the present application; Figure 3 This is an installation diagram of the sleeve frame, non-destructive testing unit and liquid storage box of the first embodiment of the present application; Figure 4 This is a diagram of a nondestructive testing unit according to the first embodiment of the present application; Figure 5 This is a schematic diagram of the working state of the infiltration detection area of ​​the first embodiment of the present application; Figure 6 This is a schematic diagram of the working state of the cleaning detection area of ​​the first embodiment of the present application; Figure 7 This is a schematic diagram of the working state of the scanning detection area of ​​the first embodiment of the present application; Figure 8 This is a diagram of the cleaning detection area and transfer tank installation structure of the second embodiment of the present application; Fig. 9 A cross-sectional view of the cleaning detection area of ​​the second embodiment of the present application; Fig.10 A diagram showing the transfer path of the pigment when cleaning the surface of the wiring harness in the cleaning detection area according to the second embodiment of the present application; Fig.11 This is a schematic diagram of the state of the silicone strip when being squeezed and attached according to the second embodiment of the present application.

[0018] Description of the numbers in the figure: 1. Detection platform; 2. Bracket seat; 3. Micro electric telescopic rod; 4. Display screen; 5. Telescopic cylinder; 6. Clamping block; 7. Guide rail frame; 8. Oil cylinder; 9. Sliding rod; 10. Socket frame; 11. Nondestructive testing unit; 111. Infiltration detection area; 112. Cleaning detection area; 113. Scanning detection area; 114. Scanning lens; 115. First rubber sheet; 116. Conveying tube; 117. First electric telescopic rod; 118. Second rubber sheet; 119. Second electric telescopic rod; 1121. Transfer tank; 1122. Connecting hose; 12. Liquid storage box. DETAILED DESCRIPTION

[0019] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0020] The first implementation method: Figure 1-7 A wiring harness detection device for new energy vehicles is shown, including a detection platform 1, a symmetrically arranged bracket seat 2 is arranged on the top of the detection platform 1, a telescopic cylinder 5 is installed on the surface of the bracket seat 2, and a clamping block 6 is connected to the output end of the telescopic cylinder 5. A guide frame 7 located between two bracket seats 2 is installed on the top of the detection platform 1, a slide bar 9 is installed on the surface of the guide frame 7, and a sleeve frame 10 and an oil cylinder 8 are slidably connected on the surface of the slide bar 9, and the output end of the oil cylinder 8 is connected to the surface of the sleeve frame 10, and a liquid storage box 12 is installed at the bottom of the sleeve frame 10, and an elliptical non-destructive testing unit 11 is connected to the bottom of the liquid storage box 12; The nondestructive testing unit 11 includes a wet testing area 111, a clean testing area 112 and a scanning testing area 113. The tops of both ends of the wet testing area 111 are connected to the clean testing areas 112. The tops of the two clean testing areas 112 are connected to the scanning testing area 113 with an inverted U-shaped cross section. The surface of the scanning testing area 113 is inlaid with a plurality of scanning lenses 114. A display screen 4 is installed on the surface of one of the brackets 2 , and the display screen 4 is electrically connected to the scanning lens 114 .

[0021] Specifically, the liquid storage box 12 contains pigment, which can be used to apply on the surface of the wire harness to form a mark on the surface of the wire harness with cracks, and can be fed back to the display screen 4 through the scanning lens 114, so that the situation of the cracks on the surface of the wire harness can be quickly understood by checking the display screen 4; The surface of the clamping block 6 is provided with a plurality of small holes for passing through the end of the wire harness and passing around inside the clamping block 6 so as to constrain the end of the wire harness and avoid rigid wear on the surface of the wire harness caused by the threaded rod constraint operation; Start the oil cylinder 8 to drive the sleeve frame 10 to move on the surface of the slide bar 9, and then drive the non-destructive testing unit 11 to move relative to the surface of the clamping block 6 that clamps the restraining wire harness; The nondestructive testing unit 11 can detect various cracks on the surface of the wire harness by using the marking detection operation, while also avoiding the wear on the wire harness surface caused by grinding and the reduction in detection accuracy caused by the lifting and magnifying crack operation.

[0022] The infiltration detection area 111 is made of a U-shaped water-absorbing sponge, and the bottom of the infiltration detection area 111 is covered and connected with a waterproof film. The cleaning detection area 112 is made of an elastic plate, and the scanning detection area 113 is made of an elastic material.

[0023] Specifically, the absorbent sponge can be used to release the pigment and then coat it on the surface of the wiring harness, and the covering of the waterproof film can prevent the pigment inside the absorbent sponge from dripping under the action of gravity, thereby avoiding contamination of the surface of the detection platform 1; The elastic plate can scrape off the paint on the surface of the wire harness without wetting it, and thus no secondary paint coating will occur due to wetting, thus ensuring the cleaning effect of the paint on the surface of the wire harness; The elastic material ensures that the scanning and detecting area 113 has elasticity, so that when the second rubber plate 118 is pressed, it can be deformed to wrap the wire harness therein.

[0024] The bottom of the liquid storage box 12 is connected to a symmetrically arranged first electric telescopic rod 117 and a second electric telescopic rod 119 with an L-shaped cross-section, and the two first electric telescopic rods 117 are located between the two second electric telescopic rods 119, the tail end of the first electric telescopic rod 117 is connected to the first rubber plate 115, and the output end of the second electric telescopic rod 119 is connected to the second rubber plate 118.

[0025] The horizontal projection of the first rubber sheet 115 is located on the surface of the cleaning detection area 112 and close to the lower end of the cleaning detection area 112 , and the horizontal projection of the second rubber sheet 118 is located on the surface of the scanning detection area 113 and close to the lower end of the scanning detection area 113 .

[0026] Specifically, the two first electric telescopic rods 117 are started at the same time, which can drive the first rubber plates 115 to approach each other, and then press the lower end of the cleaning detection area 112, so that the infiltration detection area 111 can wrap the wire bundle passing through the inside, so as to squeeze the pigment in the infiltration detection area 111 to cover the surface of the wire bundle; The two first electric telescopic rods 117 and the second electric telescopic rods 119 are started at the same time, so that the first rubber plate 115 and the second rubber plate 118 are brought close to each other, so that the upper end and the lower end of the cleaning detection area 112 can wrap and cover the wire harness covered with paint, and then the non-destructive testing unit 11 is driven by the oil cylinder 8 to move relative to the surface of the wire harness to clean the paint on the surface of the wire harness; When the surface of the wire harness is normal, the pigment can be scraped and cleaned normally. When cracks (including but not limited to transverse cracks, radial cracks and oblique cracks) appear on the surface of the wire harness, the pigment will be trapped in the cracks, forming pigment marks; At the same time, the two second electric telescopic rods 119 are started, and the second rubber plate 118 is brought close to and pressed against the upper end of the cleaning detection area 112. At this time, the wire harness after surface cleaning is in the scanning detection area 113, and the scanning detection area 113 can be elastically used to allow the scanning lens 114 to cover the wire harness. As the nondestructive testing unit 11 moves, the surface of the wire harness can be scanned. By observing the position and shape of the pigment mark, it is possible to quickly understand whether there are cracks on the surface of the wire harness and the specific situation of the cracks.

[0027] The bottom of the liquid storage box 12 is connected to symmetrically arranged delivery tubes 116 , and the tail ends of the delivery tubes 116 extend through and into the infiltration detection area 111 .

[0028] Specifically, the conveying tube 116 with a control valve installed on the surface is used to convey the pigment stored in the liquid storage box 12 to the infiltration detection area 111 so as to perform continuous infiltration processing.

[0029] A micro electric telescopic rod 3 is installed through the bottom of the detection platform 1 , and the output end of the micro electric telescopic rod 3 is connected to the bottom of the bracket seat 2 .

[0030] Specifically, the micro electric telescopic rod 3 can be used to drive the bracket seat 2 to be raised and lowered, thereby adjusting the working height of the bracket seat 2, thereby adjusting the height of the bracket seat 2 pulling the wire harness, so that the wire harness constrained by the clamping block 6 can be switched between the infiltration detection area 111, the cleaning detection area 112 and the scanning detection area 113.

[0031] Second implementation method: Figure 8-11, wherein the components identical or corresponding to those in the first embodiment are marked with the corresponding reference numerals in the first embodiment. For the sake of simplicity, only the differences from the first embodiment are described below. The difference between the second embodiment and the first embodiment is that a plurality of equally spaced silicone strips are connected to the inner side of the cleaning detection area 112, and the silicone strips and the surface of the cleaning detection area 112 form a transfer groove 1121, and a connecting hose 1122 is connected through the transfer groove 1121, and the tail end of the lowest connecting hose 1122 extends to the inside of the infiltration detection area 111.

[0032] The silicone strip is a C-shaped structure, and the length of the silicone strip is smaller than the cross-sectional width of the cleaning detection area 112 .

[0033] Specifically, when the cleaning detection area 112 scrapes the paint on the surface of the cleaning harness, as the amount of paint scraped increases, it will gradually accumulate on the surface of the cleaning detection area 112 (that is, the cleaning detection area 112 faces the direction of the harness cleaning), and then drip onto the surface of the operating platform, affecting the maintenance working environment, so this embodiment is adopted; When scraping off the paint on the surface of the cleaning harness in the cleaning detection area 112, the silicone strip can be pressed and attached to the surface of the harness. At this time, the end of the silicone strip and the surface of the cleaning detection area 112 form a transfer groove 1121. The scraped overflowed paint enters the transfer groove 1121 and is then gradually transferred to the inside of the infiltration detection area 111 through the connecting hose 1122, thereby realizing the recovery and reuse of the paint and avoiding pollution of the harness detection environment.

[0034] The surface of the silicone strip is covered with a waterproof membrane layer, and the waterproof membrane layer is made of an anti-seepage membrane.

[0035] Specifically, the use of an impermeable membrane prevents the pigment from diffusing into the silicone strip. At the same time, the silicone strip has good chemical stability, high rigidity and toughness, good mechanical strength, good resistance to environmental stress cracking and tearing strength, and can reduce the friction between the silicone strip and the surface of the wiring harness, so that the non-destructive testing unit 11 wrapped around the outside of the wiring harness can operate smoothly when moving.

[0036] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A wiring harness testing device for new energy vehicles, comprising a testing platform (1), characterized in that: The top of the detection platform (1) is provided with symmetrically arranged support seats (2), the surface of the support seats (2) is provided with a telescopic cylinder (5), the output end of the telescopic cylinder (5) is connected to a clamping block (6), the top of the detection platform (1) is provided with a guide rail frame (7) located between the two support seats (2), the surface of the guide rail frame (7) is provided with a slide bar (9), the surface of the slide bar (9) is slidably connected to a sleeve frame (10) and an oil cylinder (8), the output end of the oil cylinder (8) is connected to the surface of the sleeve frame (10), the bottom of the sleeve frame (10) is provided with a liquid storage box (12), and the bottom of the liquid storage box (12) is connected to an elliptical non-destructive testing unit (11); The nondestructive testing unit (11) comprises a wetting testing area (111), a cleaning testing area (112) and a scanning testing area (113); the tops of both ends of the wetting testing area (111) are connected to the cleaning testing areas (112); the tops of the two cleaning testing areas (112) are connected to the scanning testing areas (113) having an inverted U-shaped cross-section; and a plurality of scanning lenses (114) are inlaid and installed on the surface of the scanning testing area (113); A display screen (4) is mounted on the surface of one of the support seats (2), and the display screen (4) is electrically connected to a scanning lens (114); The inner side of the cleaning detection area (112) is connected to a plurality of equidistantly arranged silicone strips, the silicone strips and the surface of the cleaning detection area (112) form a transfer groove (1121), a connecting hose (1122) is connected through the transfer groove (1121), and the tail end of the lowest connecting hose (1122) extends to the inside of the infiltration detection area (111); The silicone strip is of a C-shaped structure, and the length of the silicone strip is smaller than the cross-sectional width of the cleaning detection area (112).

2. A wiring harness detection device for new energy vehicles according to claim 1, characterized in that: The infiltration detection area (111) is made of a water-absorbing sponge with a U-shaped structure, and the bottom of the infiltration detection area (111) is covered and connected with a waterproof film, the cleaning detection area (112) is made of an elastic plate, and the scanning detection area (113) is made of an elastic material.

3. A wiring harness detection device for new energy vehicles according to claim 1, characterized in that: The bottom of the liquid storage box (12) is connected to a first electric telescopic rod (117) and a second electric telescopic rod (119) which are symmetrically arranged and have an L-shaped cross-section, and the two first electric telescopic rods (117) are located between the two second electric telescopic rods (119), the tail end of the first electric telescopic rod (117) is connected to a first rubber plate (115), and the output end of the second electric telescopic rod (119) is connected to a second rubber plate (118).

4. A wire harness detection device for new energy vehicles according to claim 3, characterized in that: The projection of the first rubber sheet (115) in the horizontal direction is located on the surface of the cleaning detection area (112) and close to the lower end of the cleaning detection area (112), and the projection of the second rubber sheet (118) in the horizontal direction is located on the surface of the scanning detection area (113) and close to the lower end of the scanning detection area (113).

5. The wire harness detection device for new energy vehicles according to claim 1, characterized in that: The bottom of the liquid storage box (12) is connected to symmetrically arranged transmission tubes (116), and the tail ends of the transmission tubes (116) extend through and into the interior of the infiltration detection area (111).

6. A wiring harness detection device for new energy vehicles according to claim 1, characterized in that: A micro electric telescopic rod (3) is installed through the bottom of the detection platform (1), and the output end of the micro electric telescopic rod (3) is connected to the bottom of the bracket seat (2).

7. A wiring harness detection device for new energy vehicles according to claim 1, characterized in that: The surface of the silica gel strip is covered with a waterproof film layer, and the waterproof film layer is made of an anti-seepage film.

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