CN116698635A - Synchronous comparison type test platform for multiple wire harnesses and detection comparison method - Google Patents
Synchronous comparison type test platform for multiple wire harnesses and detection comparison method Download PDFInfo
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- CN116698635A CN116698635A CN202310547287.9A CN202310547287A CN116698635A CN 116698635 A CN116698635 A CN 116698635A CN 202310547287 A CN202310547287 A CN 202310547287A CN 116698635 A CN116698635 A CN 116698635A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 8
- 238000001514 detection method Methods 0.000 title claims description 20
- 238000000034 method Methods 0.000 title claims description 12
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 49
- 230000000737 periodic effect Effects 0.000 claims abstract description 13
- 238000005452 bending Methods 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 4
- 210000004072 lung Anatomy 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000241 respiratory effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/36—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by pneumatic or hydraulic means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a synchronous comparison type test platform for a plurality of wire harnesses, which comprises a first annular cylindrical air bag framework and a second annular cylindrical air bag framework, wherein an annular breathing air bag is arranged between the first annular cylindrical air bag framework and the second annular cylindrical air bag framework; the periphery of the annular breathing air bag is provided with a plurality of wire harnesses to be tested in a circumferential array; the plurality of wire harnesses to be tested are combined into a cage-shaped surrounding on the periphery of the annular breathing air bag, the annular breathing air bag can drive each wire harness to be tested on the periphery to do periodic amplitude swing action with the same amplitude in a periodic diastole and systole mode, and a plurality of wire harnesses can be simultaneously carried out on the same testing device.
Description
Technical Field
The invention belongs to the field of wire harness detection.
Background
The electrical connection among all the components can be realized by adopting a large number of wire harness structures in dynamic equipment such as automobiles, robots, mechanical arms, unmanned aerial vehicles and the like, and as the dynamic mechanical and device working scene is always in a fluctuation process, the phenomenon of repeated swing of the wire harness in the dynamic mechanical and device working scene can occur, as shown in fig. 1 and 2, when the situation of repeated swing of the wire harness occurs, bending action can be repeatedly performed on the wire-end connection part 5.1 of the wire harness 18, so that the wire-end connection part 5.1 is the part of the wire harness which is most easily damaged;
in the process of purchasing the wire harness, the final assembly or host enterprise needs to implement bending endurance test on the wire head connection part 5.1 of the wire harness samples provided by a plurality of different suppliers, needs to perform complete fair test and comparison, and finally selects the most cost performance product from the wire harness samples provided by the plurality of suppliers.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a synchronous comparison type test platform and a detection comparison method for a plurality of wire harnesses, which can be carried out on the same test device for the plurality of wire harnesses at the same time.
The technical scheme is as follows: in order to achieve the purpose, the test platform for synchronously comparing a plurality of wire harnesses comprises a first annular cylindrical air bag framework and a second annular cylindrical air bag framework, wherein an annular breathing air bag is arranged between the first annular cylindrical air bag framework and the second annular cylindrical air bag framework;
the periphery of the annular breathing air bag is provided with a plurality of wire harnesses to be tested in a circumferential array; the plurality of wire harnesses to be tested are combined into a cage shape to surround the periphery of the annular breathing air bag, and the annular breathing air bag can drive each wire harness to be tested on the periphery to do periodic amplitude swing action with the same amplitude in a periodic diastole and systole action.
Further, the outer rings of the first annular cylindrical air bag framework and the second annular cylindrical air bag framework are respectively fixed with a first annular wire harness energizing socket and a second annular wire harness energizing socket: the first wire harness plugs and the second wire harness plugs at two ends of each wire harness to be tested are respectively and electrically plugged into the electrical sockets of the first annular wire harness power-on socket and the second annular wire harness power-on socket.
Further, when the first harness plug and the second harness plug at two ends of the to-be-tested harness are respectively electrically plugged into the electrical sockets of the first annular harness power-on socket and the second annular harness power-on socket, the to-be-tested harness enters a power-on state.
Further, the wire harness detection device further comprises a detection unit capable of detecting whether each wire harness to be detected is in an electrified state.
Further, the two end outlines of the annular breathing air bag are respectively and fixedly connected with the end outline of the first annular cylindrical air bag framework and the end outline of the second annular cylindrical air bag framework in a sealing mode, and an air bag bin is formed in the enclosing range of the annular breathing air bag.
Further, the annular breathing air bag is provided with a plurality of locking units in a circumferential array on the outer wall of the waist position in the axis direction, and the middle section of each wire harness to be tested is locked on the corresponding locking unit, so that the middle section of the wire harness to be tested swings with the same stride along with the waist of the annular breathing air bag.
Further, a communicating cylinder is fixedly arranged on one side, far away from the annular breathing air bag, of the second annular cylindrical air bag framework in a coaxial mode;
a circular disc is fixed at the tail end of the communicating cylinder along the contour coaxial center, a circular wall is integrally arranged at one side of the circular disc along the contour, a pressure control diaphragm is coaxially arranged at the inner side of the circular wall, and the outer contour of the pressure control diaphragm is fixed with the inner wall of the circular wall in a sealing way; a pressure change air bin is formed between the disc and the pressure control membrane; the pressure change air bin and the air bag bin are communicated with each other through an air guide channel in the communicating cylinder; the air pressure change in the pressure change air bin can be transmitted to the air bag bin through the air guide channel.
Further, an electric telescopic device is fixedly arranged in the air guide channel through the coaxial center of the supporting arm, and the tail end of a telescopic rod of the electric telescopic device is fixedly connected with a pressure control diaphragm through the coaxial center of the top pulling disc;
when the telescopic rod is in a retraction state, the pressure control membrane protrudes to one side of the disc under the tension of the top pulling disc, so that positive pressure is generated in the pressure conversion gas bin and the gas bag bin, and the waist of the annular breathing gas bag is outwards inflated;
when the telescopic rod is in a retraction state, the pressure control membrane is protruded to one side far away from the disc under the jacking of the jacking disc, so that negative pressure is generated in the pressure conversion gas bin and the air bag bin, and the waist of the annular breathing air bag is contracted inwards.
Further, the detection and comparison method of the synchronous comparison type test platform for the plurality of wire harnesses comprises the following steps:
the telescopic rod is controlled to periodically extend and retract continuously, the breathing air bag is similar to lung breathing and continuously operates in a periodic expansion and contraction mode, and then all wire harnesses to be tested on the periphery are driven to do periodic amplitude swing with the same amplitude, and in each amplitude swing period of all wire harnesses to be tested, the joint of the wire heads of all wire harnesses to be tested is subjected to bending deformation with a bending angle a twice; the detection unit monitors the electrifying state of each wire harness to be detected in real time; when the wire in the wire end connection part of one wire harness to be tested in each wire harness to be tested breaks due to continuous bending deformation, the current in the wire harness to be tested can break or be in poor contact, and then the wire harness to be tested is monitored by the detection unit in real time, and then the wire harness to be tested is judged to be eliminated at first, and then the wire harness to be tested obtains the lowest quality score in a bending resistance and durability test project.
The beneficial effects are that: the detection device can apply continuous periodical bending deformation to the wire end connection parts of the wire harnesses to be detected completely and equally, and can see which wire inside the wire harness to be detected is broken first or last to be powered off, so that the bending durability of the wire end connection parts of the wire harness samples provided by a plurality of different suppliers is compared in a short time.
Drawings
FIG. 1 is a schematic diagram of a backside harness structure;
FIG. 2 is a schematic view of bending angles at the junction of wire ends of a wire harness;
FIG. 3 is a schematic diagram of the overall structure of the device;
FIG. 4 is an overall cross-sectional view of the present device;
FIG. 5 is a schematic perspective view of the device;
FIG. 6 is a perspective cross-sectional view of the present device;
fig. 7 is a schematic structural diagram of the latch unit.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The test platform comprises a first annular cylindrical air bag framework 1 and a second annular cylindrical air bag framework 5 which are transversely arranged at the same axis distance, wherein an annular breathing air bag 4 is coaxially arranged between the first annular cylindrical air bag framework 1 and the second annular cylindrical air bag framework 5, and the annular breathing air bag 4 is of an airtight cloth belt structure; the outer rings of the first annular cylindrical air bag framework 1 and the second annular cylindrical air bag framework 5 are fixedly provided with a first annular wire harness energizing socket 2 and a second annular wire harness energizing socket 6 respectively: the periphery of the annular breathing air bag 4 is provided with a plurality of wire harnesses 18 to be tested in a circumferential array; the first wire harness plug 18.1 and the second wire harness plug 18.2 at two ends of each wire harness 18 to be tested are respectively and electrically plugged into the electrical sockets 20 of the first annular wire harness power-on socket 2 and the second annular wire harness power-on socket 6; the plurality of wire harnesses 18 to be tested are combined into a cage shape to surround the periphery of the annular breathing air bag 4, and the annular breathing air bag 4 can periodically expand and contract to drive the wire harnesses 18 to be tested on the periphery to do periodic amplitude swing operation with the same amplitude.
The two end outlines of the annular breathing air bag 4 are respectively and fixedly connected with the end outline of the first annular cylindrical air bag framework 1 and the end outline of the second annular cylindrical air bag framework 5 in a sealing way, so that an air bag cabin 3 is formed within the enclosing range of the annular breathing air bag 4, as shown in fig. 2.
When the first harness plug 18.1 and the second harness plug 18.2 at two ends of the to-be-tested harness 18 are respectively and electrically plugged into the electrical sockets 20 of the first ring harness energizing socket 2 and the second ring harness energizing socket 6, the to-be-tested harness 18 enters an energizing state, and the to-be-tested harness 18 further comprises a detection unit capable of detecting whether the to-be-tested harness 18 is in the energizing state, wherein the detection unit can be a ammeter or other devices capable of detecting whether the to-be-tested harness 18 is in the energizing state.
The annular breathing air bag 4 is provided with a plurality of locking units 23 in a circumferential array on the outer wall of the waist position along the axis direction, and the middle section of each wire harness 18 to be tested is locked on the corresponding locking unit 23, so that the middle section of the wire harness 18 to be tested swings with the same stride along the waist of the annular breathing air bag 4. As shown in fig. 7, the latch unit 23 of this embodiment specifically includes a strap 24 and a buckle 26, and in the latched state of the latch unit 23, the middle section of the wire harness 18 to be tested passes through the strap 24 to form a through hole 25.
A fixed seat 19 is fixedly arranged on one side of the first annular cylindrical air bag framework 1 far away from the annular breathing air bag 4 in a sealing manner; the fixed seat 19 is fixed on the equipment bracket 17; a communicating cylinder 15 is fixedly arranged on the side, away from the annular respiratory air bag 4, of the second annular cylindrical air bag framework 5 in a coaxial manner, and the communicating cylinder 15 is fixed on an equipment bracket 17.
The tail end of the communication cylinder 15 is fixedly provided with a disc 9 along the contour coaxial center, one side of the disc 9 is integrally provided with a circular wall 11 along the contour, the inner side of the circular wall 11 is coaxially provided with a pressure control membrane 8, the pressure control membrane 8 is of an airtight flexible disc-shaped thin-wall structure, and the outer contour of the pressure control membrane 8 is fixed with the inner wall of the circular wall 11 in a sealing way; a pressure change air bin 10 is formed between the disc 9 and the pressure control membrane 8; the pressure change air bin 10 and the air bag bin 3 are communicated with each other through an air guide channel 14 in a communication cylinder 15; the air pressure change in the pressure change air bin 10 is transmitted to the air bag bin 3 through the air guide channel 14; an electric telescopic device 16 is fixedly arranged in the air guide channel 14 through the coaxial center of the supporting arm 7, and the tail end of a telescopic rod 13 of the electric telescopic device 16 is fixedly connected with the pressure control membrane 8 through the coaxial center of the top pulling disc 12.
When the telescopic rod 13 is in a retracted state, the pressure control membrane 8 protrudes to one side of the disc 9 under the tension of the top pulling disc 12, so that positive pressure is generated in the pressure conversion gas bin 10 and the gas bag bin 3, and the waist of the annular breathing gas bag 4 is bulged outwards; as shown in solid lines in fig. 4; when the telescopic rod 13 is in a retracted state, under the top pressure of the top pulling disc 12, the pressure control membrane 8 protrudes to the side far away from the disc 9, so that negative pressure is generated in the pressure conversion gas bin 10 and the gas bag bin 3, and the waist of the annular breathing gas bag 4 is contracted inwards, as shown by the dotted line in fig. 4.
The working principle and the method are as follows: the preparation process comprises the following steps: preparing a plurality of wire harnesses 18 to be tested, wherein the wire harnesses 18 to be tested are respectively from wire harness samples provided by a plurality of different suppliers, the detection device applies continuous periodical bending deformation to the wire end connection part 5.1 of each wire harness 18 to be tested completely equally, and the wire inside the wire harness 18 to be tested is seen to break first or last to break so as to break, so that the bending durability performance of the wire end connection part 5.1 of the wire harness samples provided by the plurality of different suppliers is compared;
the tooling process comprises the following steps: the first wire harness plug 18.1 and the second wire harness plug 18.2 which are prepared at two ends of each wire harness 18 to be tested from different suppliers are respectively electrically plugged into the electrical sockets 20 of the first annular wire harness power-on socket 2 and the second annular wire harness power-on socket 6; when the first wire harness plug 18.1 and the second wire harness plug 18.2 at the two ends of each wire harness 18 to be tested are respectively and electrically plugged into the electrical sockets 20 of the first annular wire harness power-on socket 2 and the second annular wire harness power-on socket 6, each wire harness 18 to be tested enters a power-on state with the same electrical parameters; the plurality of wire harnesses 18 to be tested are combined into a cage shape to surround the periphery of the annular breathing air bag 4, and meanwhile, the middle sections of the wire harnesses 18 to be tested are locked on the corresponding locking units 23, so that the middle sections of the wire harnesses 18 to be tested are synchronous with the waist of the annular breathing air bag 4; at the same time, the detection unit monitors the energizing state of each wire harness 18 to be detected in real time;
endurance test procedure: the telescopic rod 13 is controlled to be periodically and continuously extended and retracted;
in any telescopic period of the telescopic rod 13, when the telescopic rod 13 is in a retracted state, the pressure control membrane 8 protrudes to one side of the disc 9 under the tension of the top pulling disc 12, so that positive pressure is generated in the pressure conversion gas bin 10 and the gas bag bin 3, and the waist of the annular breathing gas bag 4 is outwards inflated; when the telescopic rod 13 is in a retraction state, under the top pressure of the top pulling disc 12, the pressure control membrane 8 protrudes to the side far away from the disc 9, so that negative pressure is generated in the pressure conversion gas bin 10 and the gas bag bin 3, and the waist of the annular breathing gas bag 4 is contracted inwards, as shown by the dotted line in fig. 4;
in the process of controlling the telescopic rod 13 to periodically extend and retract continuously, the respiratory air bag 4 continuously performs periodic diastole and systole actions like lung respiration, so as to drive the wire harnesses 18 to be tested on the periphery to perform periodic amplitude swing action with the same amplitude, and in each amplitude swing period of each wire harness 18 to be tested, the joint 5.1 of the wire heads of the wire harnesses 18 to be tested is subjected to bending deformation with a bending angle a of twice, wherein a is smaller than 30 degrees, as shown in figure 1;
in the process that the telescopic rod 13 is periodically and continuously extended and retracted back and forth, each wire harness 18 to be detected is always in an electrified state, and the detection unit monitors the electrified state of each wire harness 18 to be detected in real time; along with the continuous periodic diastole and systole actions of the respiratory air bag 4 like lung respiration, the joint 5.1 of the thread end of each wire harness 18 to be tested is continuously bent and deformed; when the wire in the wire end connection part 5.1 of one wire harness 18 to be tested in each wire harness 18 is broken due to continuous bending deformation, the current in the wire harness 18 to be tested is disconnected or in poor contact, and then the current is monitored in real time by the detection unit, so that the wire harness 18 to be tested is judged to be eliminated first, and the wire harness 18 to be tested is compared with other wire harnesses to obtain the lowest quality score in the bending durability test project.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (9)
1. Synchronous comparison type test platform of many pencil, its characterized in that: the breathing bag comprises a first annular cylindrical air bag framework (1) and a second annular cylindrical air bag framework (5), wherein an annular breathing air bag (4) is arranged between the first annular cylindrical air bag framework (1) and the second annular cylindrical air bag framework (5);
the periphery of the annular breathing air bag (4) is provided with a plurality of wire harnesses (18) to be tested in a circumferential array; the plurality of wire harnesses (18) to be tested are combined into a cage-shaped surrounding on the periphery of the annular breathing air bag (4), and the annular breathing air bag (4) can drive the wire harnesses (18) to be tested on the periphery to do periodic amplitude swing action with the same amplitude in a periodic diastole and systole action.
2. The multiple wire harness synchronization comparison test platform of claim 1, wherein: the outer rings of the first annular cylindrical air bag framework (1) and the second annular cylindrical air bag framework (5) are respectively fixed with a first annular wire harness energizing socket (2) and a second annular wire harness energizing socket (6): the first harness plug (18.1) and the second harness plug (18.2) at two ends of each harness (18) to be tested are respectively and electrically plugged into the electrical sockets (20) of the first annular harness power-on socket (2) and the second annular harness power-on socket (6).
3. The multiple wire harness synchronization comparison test platform of claim 2, wherein: when the first harness plug (18.1) and the second harness plug (18.2) at two ends of the to-be-tested harness (18) are respectively and electrically plugged into the electrical sockets (20) of the first annular harness energizing socket (2) and the second annular harness energizing socket (6), the to-be-tested harness (18) enters an energizing state.
4. The multiple wire harness synchronization comparison test platform of claim 3, wherein: the wire harness detection device further comprises a detection unit capable of detecting whether each wire harness (18) to be detected is in an energized state.
5. The multiple wire harness synchronization comparison test platform of claim 4, wherein: the two end outlines of the annular breathing air bag (4) are respectively and fixedly connected with the end outline of the first annular cylindrical air bag framework (1) and the end outline of the second annular cylindrical air bag framework (5) in a sealing mode, so that an air bag bin (3) is formed in the enclosing range of the annular breathing air bag (4).
6. The multiple wire harness synchronization comparison test platform of claim 5, wherein: the annular breathing air bag (4) is provided with a plurality of locking units (23) in a circumferential array on the outer wall of the waist position in the axis direction, and the middle section of each wire harness (18) to be tested is locked on the corresponding locking unit (23), so that the middle section of the wire harness (18) to be tested swings with the same stride along the waist of the annular breathing air bag (4).
7. The multiple wire harness synchronization comparison test platform of claim 6, wherein: a communicating cylinder (15) is fixedly arranged on one side, far away from the annular breathing air bag (4), of the second annular cylindrical air bag framework (5) in a coaxial manner;
the end of the communication cylinder (15) is coaxially fixed with a disc (9) along the outline, one side of the disc (9) is integrally provided with a ring wall (11) along the outline, the inner side of the ring wall (11) is coaxially provided with a pressure control membrane (8), and the outer outline of the pressure control membrane (8) is fixed with the inner wall of the ring wall (11) in a sealing way; a pressure change air bin (10) is formed between the disc (9) and the pressure control membrane (8); the pressure change air bin (10) and the air bag bin (3) are communicated with each other through an air guide channel (14) in a communication cylinder (15); the air pressure change in the pressure change air bin (10) can be transmitted to the air bag bin (3) through the air guide channel (14).
8. The multiple wire harness synchronization comparison test platform of claim 7, wherein: an electric telescopic device (16) is fixedly arranged in the air guide channel (14) through the coaxial center of the supporting arm (7), and the tail end of a telescopic rod (13) of the electric telescopic device (16) is fixedly connected with the pressure control diaphragm (8) through the coaxial center of the jacking disc (12);
when the telescopic rod (13) is in a retracted state, the pressure control membrane (8) protrudes to one side of the disc (9) under the tension of the jacking disc (12), so that positive pressure is generated in the pressure change air bin (10) and the air bag bin (3), and the waist of the annular breathing air bag (4) is inflated outwards;
when the telescopic rod (13) is in a retraction state, under the jacking pressure of the jacking and pulling disc (12), the pressure control membrane (8) protrudes to the side far away from the disc (9), so that negative pressure is generated in the pressure change air bin (10) and the air bag bin (3), and the waist of the annular breathing air bag (4) is contracted inwards.
9. The method for detecting and comparing the synchronous comparison type test platforms for the plurality of wire harnesses according to claim 8, wherein the method comprises the following steps:
the telescopic rod (13) is controlled to extend and retract continuously and periodically, the breathing air bag (4) acts like lung breathing continuously and periodically, and then the wire harnesses (18) to be tested on the periphery are driven to do periodic amplitude swing with the same amplitude, and in each amplitude swing period of the wire harnesses (18) to be tested, the joint (5.1) of the wire ends of the wire harnesses (18) to be tested can be subjected to bending deformation with a bending angle a for two times; the detection unit monitors the electrifying state of each wire harness (18) to be detected in real time; when the wire in the joint (5.1) of the wire ends of one wire harness (18) to be tested in each wire harness (18) to be tested is broken due to continuous bending deformation, the current in the wire harness (18) to be tested is disconnected or in poor contact, and then the current is monitored in real time by the detection unit, so that the wire harness (18) to be tested is judged to be eliminated at first, and then the wire harness (18) to be tested is enabled to obtain the lowest quality score in a bending durability test project.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310547287.9A CN116698635B (en) | 2023-05-16 | 2023-05-16 | Test platform and test method for synchronously comparing multiple wire harnesses |
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| CN202310547287.9A CN116698635B (en) | 2023-05-16 | 2023-05-16 | Test platform and test method for synchronously comparing multiple wire harnesses |
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| CN116698635A true CN116698635A (en) | 2023-09-05 |
| CN116698635B CN116698635B (en) | 2024-06-14 |
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| CN113945473A (en) * | 2021-09-14 | 2022-01-18 | 崔云兰 | Automobile wire harness durability detection system and working method |
| CN215894669U (en) * | 2021-09-15 | 2022-02-22 | 东莞市众晟强电子有限公司 | Wire harness testing platform |
| CN113945474A (en) * | 2021-09-27 | 2022-01-18 | 崔云兰 | Eccentric automobile wire harness tension resistance detection system and working method |
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