Water soaking detection device based on vehicle connecting wire harness

Abstract

The invention discloses a water soaking detection device based on a vehicle connecting wire harness, which is characterized in that an annular slide way is arranged on an annular feeding and discharging station, a wire groove carrying platform is connected to the annular slide way in a sliding manner, and a wire harness to be detected is carried in the wire groove carrying platform and sequentially passes through an ultrasonic water soaking station, a resistance testing station and an air drying station; the ultrasonic water soaking station is positioned on the outer side below the wire duct carrying platform, so that one end of the wire harness to be detected is fixed with the wire duct carrying platform, and the other water soaking end part is immersed in the water body of the ultrasonic water soaking station; then the wire duct carrying platform carrying the to-be-detected wire harness is transferred to a resistance test station, and power-on detection is carried out; and finally, the product pieces are blow-dried through the air drying station. The whole device integrates the ultrasonic water soaking station, the resistance testing station, the air drying station, the annular feeding and discharging station and the laser marking assembly, automation and integration of wire harness detection are achieved, the detection efficiency is greatly improved, and the detection time is shortened.

Description

Technical Field

[0001] The present invention belongs to the technical field of wiring harness detection equipment, and in particular relates to a water soaking detection device based on a vehicle connection wiring harness. Background Art

[0002] The water immersion test of the automotive transmission line is a traditional waterproof performance test method. During the test, the automotive wiring harness is placed in water to observe whether it leaks. This method can test the waterproof performance of the automotive wiring harness and ensure that there will be no short circuit or breakage of the wires during use.

[0003] At present, the most popular air tightness test method on the market is to use an air tightness tester or a helium mass spectrometer leak detector to test the air tightness of the automotive wiring harness. That is, the automotive wiring harness is placed in a high-pressure gas environment to observe whether there is gas leakage. This can quickly detect the air tightness performance of the automotive wiring harness and improve production efficiency. However, the cost of its detection is relatively high. There is also the water immersion method for testing, but most of the testing methods used are static water testing, which requires long-term immersion, and then transported to other workshops for power-on testing one by one. The entire transportation process is also relatively cumbersome.

[0004] In the Chinese patent application publication number CN116430158B, a detection device for a new energy vehicle converter is disclosed, including a support seat, a detection seat is connected to the support seat by adjusting a support rod, a support column is fixedly connected to the bottom of the detection seat, a plurality of protective fan-shaped parts are rotatably arranged on the support column, the plurality of protective fan-shaped parts form a spherical arrangement, and a detection spherical part is arranged inside the plurality of protective fan-shaped parts. However, this device is limited to the detection of smaller objects. When the wiring harness is longer, the volume of the detection seat used for bearing is limited, which greatly limits the detection efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a water soaking detection device based on a vehicle connection harness, which solves the above-mentioned technical problems existing in the prior art.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A water soaking detection device based on a vehicle connection harness, comprising an ultrasonic water soaking station, a resistance testing station, an air drying station, and a ring loading and unloading station; An annular slide is provided on the annular loading and unloading station, and a wire trough carrier is slidably connected to the annular slide. The wire harness to be tested is carried in the wire trough carrier and passes through an ultrasonic soaking station, a resistance testing station, and an air drying station in sequence; The ultrasonic soaking station is located below and outside the wire trough carrier, and forms a trough structure as a whole, so that one end of the wire harness to be tested is fixed to the wire trough carrier, and the other soaking end is immersed in the water body of the ultrasonic soaking station; Then the wire trough carrier carrying the wire harness to be tested is transferred to the resistance testing station to make the wire harness to be tested electrically connected and conduct power-on testing; The air-drying station includes an extrusion mechanism and an air blowing mechanism; the extrusion mechanism squeezes and absorbs water from the soaked end of the wire harness to be inspected, and then blows the soaked end dry with the air blowing mechanism, and continues to be rotated out with the wire trough carrier. After being taken out, the empty wire trough carrier returns to the ultrasonic soaking station for installation inspection of the wire harness to be inspected.

[0007] Furthermore, the wire trough carrier includes a plurality of connection ends, which are connected and fixed to the end of the wire harness to be tested through the connection ends, and the rear end where the connection ends are located is electrically connected to the wire harness to be tested, and then connected to the resistance test station; A sunken bearing cavity is formed on the wire trough carrier platform to support the winding part of the middle part of the wire harness to be detected.

[0008] Furthermore, a transverse wire crimping shaft is provided on the outer side of the wire trough carrier platform, and a gap is formed between the wire crimping shaft and the outer side of the wire trough carrier platform for the wire harness to pass through.

[0009] Furthermore, the frequency adopted by the ultrasonic soaking station is 40-60KHz.

[0010] Furthermore, the resistance testing station is fixed on the inner side of the annular slideway of the annular loading and unloading station, and a sliding member is provided at the bottom of the resistance testing station, through which the resistance testing station is controlled to contact the rear side of the connecting end where the wire trough carrier is located, and a linear connection is realized, thereby forming a power-on test of the wire harness to be tested in the power-on state.

[0011] Furthermore, a first annular groove is provided at the bottom where the resistance testing station is located, and a second annular groove is provided at the position where the air-drying station is located, and the first annular groove, the second annular groove and the annular groove where the ultrasonic soaking station is located are interconnected, and a non-closed annular structure is formed at the bottom of the annular loading and unloading station; The transition area between two adjacent groups of annular grooves is set as an inclined structure to form a passage for the soaked end of the wiring harness to be detected and to achieve the separation of the soaked end of the wiring harness to be detected from direct contact with the bottom of the annular groove.

[0012] Furthermore, the squeezing mechanism is located on both sides of the second annular groove, and includes a sponge pressure plate and a compression cylinder member arranged in a horizontal direction. By driving the compression cylinder member, the sponge pressure plate compresses and absorbs water from the soaked end of the wiring harness to be tested, and after releasing the water, it continues to be transmitted to the blowing mechanism for drying.

[0013] Furthermore, the blowing mechanism is located on the outside of the second annular groove, and includes a lifting seat and a wind knife assembly. The lifting seat realizes the up and down movement of the wind knife assembly in the vertical direction, and a grid with through holes is opened on the end face of the second annular groove where the wind knife assembly is located, so that the wind formed by the wind knife assembly can pass through the grid to dry the water-soaked end of the wire harness to be inspected that is transmitted on the path of the second annular groove.

[0014] Furthermore, the negative pressure formed at the air outlet where the wind knife assembly is located is 0.4-0.6MPa.

[0015] Furthermore, a laser marking component is provided on the annular loading and unloading station, and an output end of the laser marking component is used to mark the wiring harness to be tested that has passed the test at the resistance testing station.

[0016] Beneficial effects of the present invention: 1. This device integrates ultrasonic soaking station, resistance testing station, air drying station, circular loading and unloading station and laser marking components, realizing the automation and integration of wire harness detection. Compared with the purely manual detection method of the existing technology, it greatly improves the detection efficiency and shortens the detection time.

[0017] 2. The annular loading and unloading station adopted in this device adopts an annular slideway and a wire trough carrier, which realizes the automatic loading and unloading of the wire harness to be tested and improves the detection efficiency.

[0018] 3. The device includes multiple connection terminals on the wire slot carrier, which can be used to install and fix multiple sets of wire harnesses at one time, and can also be electrically connected, that is, power-on detection without disassembly, thereby improving detection efficiency. The designed sunken bearing cavity is used to carry the middle winding part of the wire harness to be tested, which is suitable for wire harnesses of different lengths.

[0019] 4. The air-drying station of the device includes an extrusion mechanism and an air-blowing mechanism. The extrusion mechanism uses a sponge pressure plate to absorb water, and the air-blowing mechanism achieves multi-angle drying. The extrusion mechanism uses a sponge pressure plate to improve the water removal efficiency. The wind knife assembly forms a negative pressure blowing to reduce the collision damage between the wire harness and the inner wall of the slot; and the wind knife assembly can move up and down to achieve multi-angle drying and improve the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0021] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a schematic diagram of a top view of the structure of an embodiment of the present invention; Figure 3 2 is a schematic diagram of the structure of the annular loading and unloading station according to an embodiment of the present invention; Figure 4 2 is a schematic diagram of the structure of a wire trough carrier platform according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the overall structure of the annular groove connection state of an embodiment of the present invention; Figure 6 is a schematic diagram of a top view of the annular groove connection state of an embodiment of the present invention; Figure 7 Schematic diagram of the partial connection state of the air-drying station in an embodiment of the present invention; Figure 8 Schematic diagram of the hair dryer according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 , Figure 2 As shown, an embodiment of the present invention provides a water soaking detection device based on a vehicle connection harness, including an ultrasonic water soaking station 1, a resistance testing station 2, an air drying station 3, a ring loading and unloading station 4 and a laser marking component 5; like Figure 3 As shown, the upper surface where the annular loading and unloading station 4 is located is a plane, and an annular slide 41 is provided along the outer edge of the plane, and a wire groove carrier 42 is slidably connected to the annular slide 41. In order to ensure the stability of the groove carrier 42 when moving along the annular slide 41, a clamping roller 401 is provided at the connection with the annular slide 41. By arranging the clamping roller 401 at the bottom of the annular slide 41, it can be ensured that the groove carrier 42 does not derail during operation.

[0024] The wire harness to be tested is carried in the wire slot carrier 42 , and as the wire slot carrier 42 moves, the wire harness to be tested passes through the ultrasonic soaking station 1 , the resistance testing station 2 , and the air drying station 3 in sequence until the test is completed and the wire harness is transferred out.

[0025] The ultrasonic soaking station 1 is located below and outside the wire trough carrier 42, and forms a trough structure as a whole, so that one end of the wire harness to be tested is fixed to the wire trough carrier 42, and the other soaking end is immersed in the water body of the ultrasonic soaking station 1 for soaking test.

[0026] like Figure 4 As shown, at this time, the wire trough carrier 42 includes a plurality of connection ends 421 (multiple groups of wire harnesses can be installed and fixed at one time, improving the detection efficiency), which are connected and fixed to the end of the wire harness to be detected through the connection end 421, and the rear end where the connection end 421 is located is electrically connected to the wire harness to be detected, and then connected to the resistance test station 2; A sunken bearing cavity 422 is formed on the wire slot carrier 42. The sunken bearing cavity 422 is designed to support the middle winding part of the wire harness to be tested. That is, when the wire harness to be tested is too long, the middle part of it will be completely received in the bearing cavity 422, and only the water-soaked end of the other end needs to be kept facing outward.

[0027] Since most of the wire harnesses to be tested are wrapped with a harder rubber material, they are not easy to bend, which may cause the soaked end to not be completely immersed in the ultrasonic soaking station 1. Therefore, in this application, a horizontal wire pressing shaft 423 is provided on the outside of the wire trough carrier 42, and a gap is formed between the wire pressing shaft 423 and the outside of the wire trough carrier 42 for the wire harness to pass through. In this way, the extended end of the wire harness to be tested can be directly pressed by the wire pressing shaft 423, ensuring that the soaked end is completely immersed in the bottom without causing warping.

[0028] The frequency used by the ultrasonic immersion station 1 is 40-60KHz. This method greatly shortens the cycle of the immersion test. It only needs to be immersed in the environment for a certain period of time, about 20-30 minutes, while the traditional method requires immersion in static water for 24 hours. Therefore, it can greatly shorten the detection time and improve the detection efficiency.

[0029] Then, the wire trough carrier 42 carrying the wire harness to be tested is transferred to the resistance test station 2, so that the wire harness to be tested is electrically connected and powered on. At this time, the resistance test station 2 is fixed to the inner side of the annular slideway 41 of the annular loading and unloading station 4 (it will not move with the movement of the wire trough carrier 42, that is, it can be tested every time when the wire trough carrier 42 is transferred to the resistance test station 2), and a sliding member 201 is provided at the bottom of the resistance test station 2, and the sliding member 201 controls the resistance test station 2 to contact the rear side of the connection end 421 where the wire trough carrier 42 is located, so as to realize linear connection and form a power-on test of the wire harness to be tested in the power-on state. At this time, the connection end 421 at the rear end of the wire trough carrier 42 is made of conductive material, so when the resistance test station 2 moves through the sliding member 201, it can be electrically connected with the rear end of the connection end 421 without additional disassembly, so as to realize the detection of the power-on state and ensure the continuity of the detection.

[0030] A laser marking component 5 is provided on the annular loading and unloading station 4, and the output end of the laser marking component 5 is used to mark the wiring harness to be tested that has passed the resistance testing station 2, while the wiring harness that has failed the power-on test is not marked.

[0031] like Figure 5 , Figure 6 As shown, a first annular groove 21 is provided at the bottom where the resistance testing station 2 is located, and a second annular groove 33 is provided at the position where the air-drying station 3 is located, and the first annular groove 21, the second annular groove 33 and the annular groove where the ultrasonic soaking station 1 is located are interconnected, and a non-closed annular structure is formed at the bottom of the annular loading and unloading station 4; this structure can ensure that during the entire transmission process, water droplets after the wiring harness to be tested is soaked in water will not drip outward, and the dripping water droplets can be collected collectively.

[0032] like Figure 7 As shown, the air drying station 3 includes a squeezing mechanism 31 and a blowing mechanism 32. The squeezing mechanism 31 squeezes and absorbs water from the soaked end of the wire harness to be tested, and then blows the soaked end dry with the blowing mechanism 32, and then the wire harness continues to be rotated out with the wire trough carrier 42. After being taken out, the empty wire trough carrier 42 flows back to the ultrasonic soaking station 1 to perform installation inspection on the wire harness to be tested.

[0033] The transition area between two adjacent groups of annular grooves is set as an inclined structure, which can achieve relative isolation between the two adjacent groups of annular grooves, and form a passage for the water-soaked end of the wiring harness to be tested to avoid scratching the water-soaked end, and realize the water-soaked end of the wiring harness to be tested to be separated from direct contact with the bottom of the annular groove, which can prevent scratches caused by dragging the water-soaked end and the bottom of the annular groove.

[0034] The squeezing mechanism 31 is located on both sides of the second annular groove 33, and the mechanism includes a sponge pressing plate 311 and a clamping cylinder 312 arranged in the horizontal direction. The two groups of sponge pressing plates 311 are driven by the clamping cylinder 312 to realize relative movement, thereby compressing and absorbing water on the soaked end of the wiring harness to be tested. Due to the clamping method of the sponge pressing plate 311, the water stored in the irregular position structure on the surface of the soaked end of the wiring harness to be tested can be adsorbed, thereby improving the efficiency of water removal. After being released, it is continuously transmitted to the blowing mechanism 32 for drying (at this time, there are fewer water stains remaining on the surface of the wiring harness to be tested, and the drying effect can be quickly achieved by blowing).

[0035] like Figure 8 As shown, the blower mechanism 32 is located outside the second annular groove 33, including a lifting seat 321 and a wind knife assembly 322. The lifting seat 321 enables the wind knife assembly 322 to move up and down in the vertical direction to achieve multi-angle drying, improve the drying efficiency, and the grid 331 with through holes is opened on the end face of the second annular groove 33 where the wind knife assembly 322 is located. The design of this grid 331 can achieve a ventilation effect. However, it does not affect the continued transmission of the wire harness to be detected in the second annular groove 33, so that the wind formed by the wind knife assembly 322 passes through the grid 331 to dry the soaked end of the wire harness to be detected on the path of the second annular groove 33. The negative pressure formed by the air outlet where the wind knife assembly 322 is located is 0.4-0.6MPa, and the wind knife assembly 322 is symmetrically arranged on both sides of the second annular groove 33. Therefore, in the blowing link, the collision damage between the wire harness to be detected and the inner wall of the second annular groove 33 is reduced.

[0036] When the drying is completed, the wire harness that has been inspected is moved out of the second annular groove 33 through the wire groove carrier 42, and the wire harness is taken out from the second annular groove 33 manually or mechanically, and the wire harnesses that pass the marking and the wire harnesses that fail the marking are classified, which greatly improves the inspection efficiency, and the empty wire groove carrier 42 flows back to the location of the ultrasonic soaking station 1 to re-center the wire harness to be inspected.

[0037] The entire device integrates an ultrasonic soaking station, a resistance testing station, an air drying station, a circular loading and unloading station, and a laser marking component, realizing the automation and integration of wire harness detection.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A water soaking detection device based on a vehicle connection harness, comprising an ultrasonic water soaking station (1), a resistance testing station (2), an air drying station (3), and a ring-shaped loading and unloading station (4); characterized in that: An annular slideway (41) is provided on the annular loading and unloading station (4), and a wire trough carrier platform (42) is slidably connected to the annular slideway (41); a wire harness to be tested is carried in the wire trough carrier platform (42) and passes through an ultrasonic soaking station (1), a resistance testing station (2), and an air drying station (3) in sequence; The ultrasonic soaking station (1) is located below and outside the wire trough carrier platform (42), and forms a trough structure as a whole, so that one end of the wire harness to be tested is fixed to the wire trough carrier platform (42), and the other soaking end is immersed in the water body of the ultrasonic soaking station (1); Then, the wire trough carrier (42) carrying the wire harness to be tested is transferred to the resistance testing station (2) so that the wire harness to be tested is electrically connected and a power-on test is performed; The air drying station (3) comprises a squeezing mechanism (31) and a blowing mechanism (32); the squeezing mechanism (31) squeezes and absorbs water from the soaked end of the wire harness to be tested, and then blows the soaked end dry with the blowing mechanism (32), and then the wire harness continues to be rotated out with the wire trough carrier (42). After being taken out, the empty wire trough carrier (42) flows back to the ultrasonic soaking station (1) to perform installation inspection on the wire harness to be tested.

2. The water soaking detection device based on the vehicle connection harness according to claim 1 is characterized in that: The wire trough carrier (42) comprises a plurality of connection ends (421), which are connected and fixed to the end of the wire harness to be tested via the connection ends (421), and the rear end where the connection ends (421) are located is electrically connected to the wire harness to be tested, and then connected to the resistance testing station (2); A sunken bearing cavity (422) is formed on the wire trough carrier platform (42) to support the winding portion in the middle of the wire harness to be tested.

3. The water soaking detection device based on vehicle connection harness according to claim 1 is characterized in that: A transverse wire pressing shaft (423) is provided on the outer side of the wire trough carrier platform (42), and a gap is formed between the wire pressing shaft (423) and the outer side of the wire trough carrier platform (42) for the wire harness to pass through.

4. The water soaking detection device based on the vehicle connection harness according to claim 1 is characterized in that: The frequency used by the ultrasonic soaking station (1) is 40-60 KHz.

5. The water soaking detection device based on vehicle connection harness according to claim 2, characterized in that: The resistance testing station (2) is fixed to the inner side of the annular slideway (41) of the annular loading and unloading station (4), and a sliding member (201) is provided at the bottom of the resistance testing station (2). The sliding member (201) controls the resistance testing station (2) to contact the rear side of the connection end (421) where the wire trough carrier (42) is located, and realizes a linear connection, thereby forming a power-on test of the wire harness to be tested in a power-on state.

6. The water soaking detection device based on vehicle connection harness according to claim 1, characterized in that: A first annular groove (21) is provided at the bottom where the resistance testing station (2) is located, and a second annular groove (33) is provided at the position where the air-drying station (3) is located, and the first annular groove (21), the second annular groove (33) and the annular groove where the ultrasonic soaking station (1) is located are interconnected, and a non-closed annular structure is formed at the bottom of the annular loading and unloading station (4); The transition area between two adjacent groups of annular grooves is set as an inclined structure to form a passage for the soaked end of the wiring harness to be detected and to achieve the separation of the soaked end of the wiring harness to be detected from direct contact with the bottom of the annular groove.

7. The water soaking detection device based on vehicle connection harness according to claim 1 is characterized in that: The squeezing mechanism (31) is located on both sides of the second annular groove (33), and comprises a sponge pressing plate (311) and a pressing cylinder (312) arranged in a horizontal direction. The pressing cylinder (312) is driven to enable the sponge pressing plate (311) to press and absorb water from the soaked end of the wire harness to be tested, and after releasing the water, the water is continuously transmitted to the blowing mechanism (32) for drying.

8. The water soaking detection device based on vehicle connection harness according to claim 1, characterized in that: The air blowing mechanism (32) is located outside the second annular groove (33), and comprises a lifting seat (321) and an air knife assembly (322). The lifting seat (321) enables the air knife assembly (322) to move up and down in the vertical direction. A through-hole grid (331) is provided on the end surface of the second annular groove (33) where the air knife assembly (322) is located, so that the air generated by the air knife assembly (322) passes through the grid (331) to dry the water-soaked end of the wire harness to be detected that is transmitted on the path of the second annular groove (33).

9. The water soaking detection device based on the vehicle connection harness according to claim 8, characterized in that: The negative pressure formed by the air outlet where the wind knife assembly (322) is located is 0.4-0.6 MPa.

10. The water soaking detection device based on vehicle connection harness according to claim 5, characterized in that: A laser marking component (5) is provided on the annular loading and unloading station (4), and an output end of the laser marking component (5) is used to mark the wiring harness to be tested that has passed the test at the resistance testing station (2).

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