Waterproof performance testing device for automobile wire harness connector

Abstract

An automobile wire harness connector waterproof performance testing device disclosed by the present invention comprises a fixed plate and an inflation device, one side of the fixed plate is fixedly connected with an object placing seat, one side of the inflation device is uniformly and fixedly connected with inflation pipes, one end of each inflation pipe is fixedly connected with a connection pipe, the object placing seat is provided with a clamping groove, and the clamping groove is in contact with the connection pipe. A wire groove is formed in one side of the storage base, a prismatic table groove is formed in the side, located on the wire groove, of the storage base, a clamping block is fixedly connected to the side, close to the prismatic table groove, of the wire groove, a first support is fixedly connected to the upper end of the storage base, and a connecting plate is fixedly connected to one side of the upper end of the connecting plate. The device has the beneficial effects that the prismatic table groove and the prismatic table rubber column are arranged on one side of the storage base to be connected with different connector wire harnesses on an automobile, then the second screw rotates to drive the push plate to extrude the prismatic table rubber column, the connector wire harnesses can be compacted under the action of pressure and the push plate, and therefore the device adapts to the connector wire harnesses with different diameters and different shapes, and the practicability is high. And the detection precision is improved.

Description

Technical Field

[0001] The invention relates to the field of automobile wiring harness connector production, in particular to a device for testing the waterproof performance of an automobile wiring harness connector. Background Art

[0002] Automotive wiring harness connectors, also known as connectors, are an important part of the automotive circuit system. They are usually used as indispensable components for connecting wiring harnesses with other electrical equipment. They are usually divided into wiring harness end connectors and electrical end connectors. Automotive wiring harness connectors and wiring harnesses are the neural network of the automotive electrical system, responsible for transmitting electrical energy and signals to ensure the normal operation of various electronic equipment. When water, dust and other pollutants enter the connection port, it will cause circuit breakage, disconnection or signal distortion, which will affect the normal operation of the vehicle.

[0003] In order to meet the needs of the modern automobile industry, an air tightness test method is usually used to conduct relevant tests on wiring harness connectors. A special plug is set at one end and connected to the test instrument. Then the wiring harness connector to be tested is connected to the special plug, and then an inflation test is performed. However, during the test process, it is usually necessary to test different automotive wiring harness plugs. The line widths of these wiring harness plugs are not the same, and the cross-sections are not all circular structures. The composition directions of the wiring harness and the connector are also different, which affects the air tightness during the test.

[0004] Therefore, a device for testing the waterproof performance of automobile wiring harness connectors is proposed to solve the above-mentioned detection needs to monitor different automobile wiring harness connectors, while reducing the problem that the line width of the wiring harness of the plug-in is different and the composition direction of the wiring harness and the connector is different. Summary of the invention

[0005] The object of the present invention is to provide a device for testing the waterproof performance of automobile wiring harness connectors. First, a prism groove and a split prism rubber column are provided to adapt to the diameter of the wiring harness of the connector to be tested, and then the diameter and shape of the prism groove and the connector wiring harness are compacted by external force extrusion to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for testing the waterproof performance of automobile wiring harness connectors, comprising a fixing plate and an inflating device, wherein one side of the fixing plate is fixedly connected to a storage seat, one side of the inflating device is evenly fixedly connected to an inflating tube, one end of the inflating tube is fixedly connected to a connecting tube, a card slot is provided on the storage seat, the card slot contacts the connecting tube, one side of the storage seat is provided with a wire slot, the storage seat is provided with a prism slot on one side of the wire slot, a card block is fixedly connected to the side of the wire slot close to the prism slot, a first bracket is fixedly connected to the upper end of the storage seat, a connecting plate is fixedly connected to the upper end of the first bracket, a first motor is fixedly connected to one side of the upper end of the connecting plate, a first screw is fixedly connected to the output end of the first motor, one end of the first screw is rotatably connected to the storage seat, a pressing plate is threadedly connected to the first screw, and the pressing plate corresponds to the storage seat; A storage slot is provided in the storage seat, a spring rod is fixedly connected to the bottom side of the storage slot, a piston plate is fixedly connected to the upper end of the spring rod, the piston plate contacts the storage slot, a baffle is fixedly connected to the storage slot, baffles are fixedly connected to the upper and lower sides of the baffle, a distance sensor is fixedly connected to the storage slot, the distance sensor is connected in series with a display screen via a wire, and the display screen is fixedly connected to the connecting plate; A prism rubber column is inserted into one side of the prism groove, and the prism rubber column is in contact with the prism groove. The prism rubber column is a split structure, and the length of the prism rubber column is half of the prism groove.

[0007] In a further embodiment, a second bracket is fixedly connected to one side of the storage seat close to the prism groove, a vertical plate is fixedly connected to one side of the second bracket, a second motor is fixedly connected to one end of the vertical plate, a second screw is fixedly connected to the output end of the second motor, and a push plate is threadedly connected to the second screw.

[0008] In a further embodiment, a depression is provided on a side of the push plate away from the vertical plate, and the depression corresponds to the prism rubber column. The split prism rubber column can be connected by providing the depression.

[0009] In a further embodiment, a constraint hole is opened on one side of the prism rubber column, and the diameter of the constraint hole gradually decreases from the vertical plate to the storage seat. By setting the constraint hole, connector harnesses of different diameters can be accommodated.

[0010] In a further embodiment, a protrusion is fixedly connected to one of the prism rubber columns, and the protrusion is plugged into another prism rubber column. By arranging the protrusion connection, the split prism rubber column structures can be merged.

[0011] In a further embodiment, the prism rubber column is provided with an arc groove on one side of the constraint hole, and the arc grooves of the two prism rubber columns correspond to each other. By providing the arc groove, friction can be reduced, making it easier for the prism rubber column to enter the prism groove.

[0012] In a further embodiment, the outer side of the pyramid rubber column is in contact with a squeezing ball, the squeezing ball is rotatably embedded in the storage seat, and the squeezing ball is located in the pyramid groove. By arranging the squeezing ball, the friction force is further reduced.

[0013] In a further embodiment, the storage seat is located in the storage slot and is fixedly connected to an electric push rod, one end of the electric push rod corresponds to the piston plate. By setting the electric push rod, the piston plate can be prompted to move in the storage slot, so that the spacing between the piston plates can be controlled.

[0014] In a further embodiment, the storage seat is fixedly connected to an arc block in the slot, and a clamping ring is fixedly connected to the arc block. The clamping ring is located on both sides of the arc block. By arranging the clamping ring to cooperate with the arc block to connect with the rubber gasket on the connecting tube, the sealing between the connecting ring and the storage seat and the pressure plate can be increased.

[0015] In a further embodiment, the arc block is in contact with a rubber gasket, and the rubber gasket is sleeved on the outside of the connecting pipe. By providing the rubber gasket, the sealing performance is increased.

[0016] Compared with the prior art, the beneficial effect of the present invention is that different connector wiring harnesses on the car are connected by arranging a prism groove and a prism rubber column on one side of the storage seat, and then the second screw rotates to drive the push plate to extrude the prism rubber column. Under the action of pressure and the push plate, the connector wiring harness can be compacted, thereby adapting to connector wiring harnesses of different diameters and shapes, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 It is a three-dimensional structural diagram of the storage seat of the present invention; Figure 3 It is a three-dimensional structural diagram of the prism glue column of the present invention; Figure 4 It is a side cross-sectional structural diagram of the storage seat of the present invention.

[0018] In the figure: 1. fixing plate; 2. inflating device; 3. storage seat; 4. inflating tube; 5. connecting tube; 6. card slot; 7. wire slot; 8. prism slot; 9. connecting plate; 10. first screw; 11. pressure plate; 12. storage slot; 13. spring rod; 14. piston plate; 15. display screen; 16. prism rubber column; 17. restraining hole; 18. protrusion; 19. vertical plate; 20. second screw; 21. push plate; 22. depression; 23. electric push rod; 24. arc block; 25. rubber gasket; 26. snap ring; 27. card block; 28. squeeze ball; 29. ​​arc slot; 30. sensor; 31. stop bar; 32. stop block. DETAILED DESCRIPTION

[0019] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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. Example

[0020] During the air tightness test of automobile wiring harness connectors, the tightness between the wiring harness of the connector to be tested and the storage seat is easily affected by the diameter and shape of the wiring harness, resulting in poor accuracy of the waterproof detection performance of the automobile wiring harness connector.

[0021] See also Figure 1-4 The present embodiment provides a device for testing the waterproof performance of automobile wiring harness connectors, including a fixing plate 1 and an inflating device 2, the inflating device 2 is an external air supply device, and is transmitted through an inflating tube 4, a storage seat 3 is fixedly connected to one side of the fixing plate 1, an inflating tube 4 is evenly fixedly connected to one side of the inflating device 2, a connecting tube 5 is fixedly connected to one end of the inflating tube 4, a card slot 6 is provided on the storage seat 3, the card slot 6 is in contact with the connecting tube 5, a wire slot 7 is provided on one side of the storage seat 3, the wire slot 7 is used to place the connecting tube 5, a prism groove 8 is provided on one side of the storage seat 3 on the wire slot 7, the prism groove 8 is used to place the wiring harness of the connector to be tested, and the wire slot 7 is fixed near the prism groove 8 on one side. A clamping block 27 is fixedly connected, through which the wiring harness can pass, and the prism rubber column 16 is limited. The upper end of the storage seat 3 is fixedly connected to the first bracket, and the upper end of the first bracket is fixedly connected to the connecting plate 9. One side of the upper end of the connecting plate 9 is fixedly connected to the first motor. The first motor drives the first screw 10 to rotate, which can make the pressure plate 11 contact the storage seat 3, so that the storage seat 3 is closed. The pressure plate 11 is provided with a structure corresponding to the storage seat 3. The output end of the first motor is fixedly connected to the first screw 10, and one end of the first screw 10 is rotatably connected to the storage seat 3. The first screw 10 is threadedly connected to the pressure plate 11, and the pressure plate 11 corresponds to the storage seat 3. A storage slot 12 is provided in the storage seat 3, and a spring rod 13 is fixedly connected to the bottom side of the storage slot 12. The spring rod 13 can provide flexible support for the piston plate 14. The piston plate 14 is fixedly connected to the upper end of the spring rod 13. The piston plate 14 contacts the storage slot 12. A baffle 31 is fixedly connected in the storage slot 12 (when the piston plate 14 contacts the baffle 31, the zero scale of the distance sensor 30 is reached). Blocks 32 are fixedly connected to the upper and lower sides of the baffle 31. A distance sensor 30 is fixedly connected in the storage slot 12. The distance sensor 30 monitors the position of the piston plate 14. When the distance between the two piston plates 14 is far away, the distance sensor 30 can provide signal transmission after monitoring, and transmit it to the display screen 15, so that the display is more intuitive and easy to observe. The distance sensor 30 is connected in series with the display screen 15 through a wire, and the display screen 15 is fixedly connected to the connecting plate 9; A prism rubber column 16 is inserted into one side of the prism groove 8, and the prism rubber column 16 contacts the prism groove 8. The prism rubber column 16 is a split structure and a rubber structure. The prism rubber column 16 enters the prism groove 8 by external force extrusion.

[0022] A second bracket is fixedly connected to one side of the storage seat 3 close to the prism groove 8, a vertical plate 19 is fixedly connected to one side of the second bracket, a second motor is fixedly connected to one end of the vertical plate 19, a second screw 20 is fixedly connected to the output end of the second motor, a push plate 21 is threadedly connected to the second screw 20, and the second motor drives the second screw 20 to rotate, which can prompt the pressure plate 11 to provide extrusion on one side of the prism rubber column 16, so that the prism rubber column 16 achieves a sealing effect under the dual extrusion of the wiring harness and the prism groove 8, thereby improving the sealing between the wiring harness on one side of the connector to be inspected and the storage seat 3.

[0023] A recess 22 is provided on the side of the push plate 21 away from the vertical plate 19 , and the recess 22 corresponds to the pyramidal rubber column 16 . By providing the recess 22 , one end of the pyramidal rubber column 16 can be connected, thereby causing the pyramidal rubber column 16 to be squeezed, which has a better squeezing effect on the wire harness.

[0024] A constraint hole 17 is provided on one side of the prism rubber column 16. The diameter of the constraint hole 17 gradually decreases from the vertical plate 19 toward the storage seat 3. By providing the constraint hole 17, the adaptability to wire harnesses of different diameters can be increased.

[0025] Working principle: start the first motor and cause the first screw 10 to rotate, so that the pressure plate 11 and the storage seat 3 are in a split structure, then put one side of the inflation tube 4 into the card slot 6, the rubber gasket 25 on the connecting tube 5 is between the two card rings 26 and the rubber gasket 25 is in contact with the arc block 24, and at the same time, connect the connecting ring 5 with the plug to be inspected, the plug to be inspected and the redundant wiring harness are located on the upper side of the baffle 31, and at the same time, one side of the wiring harness of the plug to be inspected is placed in the wire slot 7, and then the wire harness is wrapped with the prism rubber column 16, and then the prism rubber column 16 is inserted into the prism groove 8, at this time, the pressure plate 11 moves down, and the space between the pressure plate 11 and the storage seat 3 is closed, the rubber gasket 25 is squeezed and the prism The prism rubber column 16 is also squeezed to a certain extent, and then the second motor is started to drive the second screw 20 to rotate, and then the push plate 21 and the recess 22 are connected with one side of the prism rubber column 16, and one side of the prism rubber column 16 is squeezed and gradually inserted into the prism groove 8. At this time, the prism rubber column 16 is squeezed by the push plate 21, the squeezing ball 28 and the prism groove 8, and is in close contact with the wiring harness of the plug to be inspected, so that a sealed environment is formed between the storage seat 3 and the pressure plate 11. At this time, the inflation device 2 is started and inflated to the storage groove 12, and then the distance sensor 30 is used to provide detection of the piston plate 14. When the position of the piston plate 14 is offset, an electrical signal will be transmitted to the display screen 15, thereby improving the convenience of observation.

[0026] The prism rubber column 16 is made of rubber, and will produce excessive deformation during the actual extrusion process, resulting in an increase in the gap, which affects the sealing between the wiring harness and the prism rubber column 16.

[0027] A protrusion 18 is fixedly connected to one of the pyramidal rubber columns 16 , and the protrusion 18 is plugged into the other pyramidal rubber column 16 . The protrusion 18 can be provided to facilitate the connection of the two pyramidal rubber columns 16 .

[0028] An arc groove 29 is provided on one side of the constraint hole 17 of the pyramidal rubber column 16, and the arc grooves 29 of the two pyramidal rubber columns 16 correspond to each other. By providing the arc groove 29, the pyramidal rubber column 16 can be easily squeezed, and the force squeeze can be improved to achieve a better sealing effect.

[0029] The outer side of the pyramid rubber column 16 is in contact with a squeezing ball 28 , which is rotatably embedded in the storage seat 3 and is located in the pyramid groove 8 . The squeezing ball 28 is provided to reduce friction.

[0030] When the connecting tube 5 is connected with the card slot 6, the mechanical equipment wears out, which will cause a gap and affect the accuracy of the detection. The storage seat 3 is located in the storage groove 12 and is fixedly connected to an electric push rod 23. One end of the electric push rod 23 corresponds to the piston plate 14. The electric push rod 23 drives the piston plate 14 to move to contact the baffle 31, which can form a detection basis and facilitate intuitive monitoring of the distance sensor 30.

[0031] The storage seat 3 is located in the slot 6 and is fixedly connected to an arc block 24, to which a snap ring 26 is fixedly connected. The snap ring 26 is located on both sides of the arc block 24. By providing the arc block 24, the limiting and squeezing of the rubber gasket 25 can be increased, thereby providing connection between the connecting tube 5 and the storage seat 3.

[0032] The arc block 24 is in contact with a rubber gasket 25 , which is sleeved on the outside of the connecting tube 5 . The rubber gasket 25 is provided to increase the sealing performance of the connection between the connecting tube 5 , the storage seat 3 and the pressure plate 11 . See also Figure 1-4 , further improvements are made on the basis of Example 1.

[0033] See also Figure 1-4 , further improvements are made on the basis of Example 1.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the waterproof performance of an automobile wiring harness connector, comprising a fixing plate (1) and an inflating device (2), wherein a storage seat (3) is fixedly connected to one side of the fixing plate (1), and characterized in that: One side of the inflatable device (2) is evenly and fixedly connected with an inflatable tube (4), one end of the inflatable tube (4) is fixedly connected with a connecting tube (5), the storage seat (3) is provided with a card slot (6), the card slot (6) is in contact with the connecting tube (5), one side of the storage seat (3) is provided with a wire slot (7), the storage seat (3) is provided with a prism slot (8) on the side of the wire slot (7), the wire slot (7) is fixedly connected with a card block (27) on the side close to the prism slot (8), the upper end of the storage seat (3) is fixedly connected with a first bracket, the upper end of the first bracket is fixedly connected with a connecting plate (9), one side of the upper end of the connecting plate (9) is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a first screw rod (10), one end of the first screw rod (10) is rotatably connected to the storage seat (3), the first screw rod (10) is threadedly connected with a pressing plate (11), and the pressing plate (11) corresponds to the storage seat (3); A storage groove (12) is provided in the storage seat (3), a spring rod (13) is fixedly connected to the bottom side of the storage groove (12), a piston plate (14) is fixedly connected to the upper end of the spring rod (13), the piston plate (14) contacts the storage groove (12), a stop bar (31) is fixedly connected to the storage groove (12), and stop blocks (32) are fixedly connected to the upper and lower sides of the stop bar (31), a distance sensor (30) is fixedly connected to the storage groove (12), the distance sensor (30) is connected in series with a display screen (15) via a wire, and the display screen (15) is fixedly connected to the connecting plate (9); A prism rubber column (16) is inserted into one side of the prism groove (8), and the prism rubber column (16) is in contact with the prism groove (8), and the prism rubber column (16) is a split structure.

2. The waterproof performance testing device for automobile wiring harness connector according to claim 1, characterized in that: A second bracket is fixedly connected to one side of the storage seat (3) close to the prism groove (8), a vertical plate (19) is fixedly connected to one side of the second bracket, a second motor is fixedly connected to one end of the vertical plate (19), a second screw rod (20) is fixedly connected to the output end of the second motor, and a push plate (21) is threadedly connected to the second screw rod (20).

3. The waterproof performance testing device for automobile wiring harness connector according to claim 2, characterized in that: A recess (22) is formed on a side of the push plate (21) away from the vertical plate (19), and the recess (22) corresponds to the prism rubber column (16).

4. The waterproof performance testing device for automobile wiring harness connector according to claim 3, characterized in that: A restraining hole (17) is provided on one side of the prism rubber column (16), and the diameter of the restraining hole (17) gradually decreases from the vertical plate (19) toward the storage seat (3).

5. The waterproof performance testing device for automobile wiring harness connector according to claim 4, characterized in that: A protrusion (18) is fixedly connected to one of the prism-shaped rubber columns (16), and the protrusion (18) is plugged into another prism-shaped rubber column (16).

6. The waterproof performance testing device for automobile wiring harness connector according to claim 5, characterized in that: The pyramidal rubber column (16) is provided with an arc-shaped groove (29) on one side of the constraint hole (17), and the arc-shaped grooves (29) of the two pyramidal rubber columns (16) correspond to each other.

7. The waterproof performance testing device for automobile wiring harness connector according to claim 6, characterized in that: The outer side of the pyramid rubber column (16) is in contact with a squeezing ball (28), the squeezing ball (28) is rotatably embedded in the storage seat (3), and the squeezing ball (28) is located in the pyramid groove (8).

8. The waterproof performance testing device for automobile wiring harness connector according to claim 7, characterized in that: The storage seat (3) is located in the storage groove (12) and is fixedly connected to an electric push rod (23), and one end of the electric push rod (23) corresponds to the piston plate (14).

9. The waterproof performance testing device for automobile wiring harness connector according to claim 8, characterized in that: The storage seat (3) is located in the clamping groove (6) and is fixedly connected to an arc-shaped block (24). A clamping ring (26) is fixedly connected to the arc-shaped block (24). The clamping ring (26) is located on both sides of the arc-shaped block (24).

10. The waterproof performance testing device for automobile wiring harness connector according to claim 9, characterized in that: The arc block (24) is in contact with a rubber gasket (25), and the rubber gasket (25) is sleeved on the outside of the connecting pipe (5).

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