Automobile body wiring harness test bench

Abstract

An automotive body wiring harness test bench includes a mounting block, a control panel, a socket embedded in the mounting block and docking with a wiring harness terminal, and a connection limiter mechanism disposed within the mounting block and located on the side of the socket. The connection limiter mechanism includes a first conductive seat, a second conductive pin inserted into the first conductive seat, an insulating sleeve disposed between the first conductive seat and the second conductive pin to prevent electrical connection between the first conductive seat and the second conductive pin, and a drive assembly for driving the first conductive seat to contact a conductive strip on the wiring harness terminal and driving the second conductive pin to contact the conductive strip and confined to a protrusion. The control panel is electrically connected to the first conductive seat and the second conductive pin via circuitry. The present invention can be used to detect the absence of a conductive strip.

Description

Technical Field

[0001] The invention relates to an automobile body wiring harness test bench. Background Art

[0002] See also Figure 3 , which is a terminal for automobile body wiring harness, including a wiring harness end 3 made of insulating plastic and in the shape of a rectangular parallelepiped and a conductive sheet 8 arranged on the side surface of the wiring harness end 3, and a protrusion 9 is provided in the middle position of the conductive sheet 8 along the length direction of the wiring harness end 3.

[0003] The problem is that during the terminal processing of the above-mentioned automobile body wiring harness, there are cases where the operator forgets to assemble the conductive sheet 8. The traditional test bench cannot detect the missing conductive sheet 8, which has certain limitations.

[0004] Therefore, further improvement is needed. Summary of the Invention

[0005] The object of the present invention is to provide an automobile body wiring harness test bench, which can be used to detect the situation where a conductive sheet is missing.

[0006] The object of the present invention is achieved like this:

[0007] The automobile body wiring harness test bench includes a mounting block, a control panel, a socket embedded in the mounting block and connected to the wiring harness end, and a connection limit mechanism arranged in the mounting block and located on the side of the socket;

[0008] The connection limiting mechanism includes a first conductive seat, a second conductive needle inserted into the first conductive seat, an insulating sleeve arranged between the first conductive seat and the second conductive needle to prevent the first conductive seat and the second conductive needle from being connected, and a driving component for driving the first conductive seat to contact the conductive sheet on the wiring harness end and driving the second conductive needle to contact the conductive sheet and being limited on the protruding portion;

[0009] The control board is electrically connected to the first conductive seat and the second conductive needle through circuits.

[0010] The driving assembly comprises a cylinder which is embedded in the mounting block and located on the side of the socket, and a piston rod of the cylinder is fixedly connected to the first conductive seat.

[0011] The driving assembly includes an electromagnetic reversing valve arranged below the control board. The electromagnetic reversing valve is connected to the cylinder through a pipeline, and the control board is electrically connected to the electromagnetic reversing valve through a circuit.

[0012] The mounting block is provided with a reset switch located on the side of the socket and used to drive the electromagnetic reversing valve to operate so as to retract the piston rod of the cylinder. The control board is electrically connected to the reset switch through a circuit.

[0013] The test bench includes a push switch arranged at the bottom of the socket and used to cooperate with the wire harness end to trigger the operation of the drive component. The control board is electrically connected to the push switch through a circuit.

[0014] A guide cylinder is provided on the upper portion of the inner side surface of the first conductive seat corresponding to the second conductive needle, and a mounting groove is provided on the guide cylinder that passes through the inner side surface of the guide cylinder and the outer side surface of the first conductive seat;

[0015] The second conductive needle is at least partially arranged in the mounting groove, and the inner side and outer side of the second conductive needle respectively pass through the mounting groove. The insulating sleeve is arranged in the mounting groove and is tightly pressed between the inner wall of the mounting groove and the second conductive needle. A spacing interval is left between the second conductive needle and the inner wall of the mounting groove.

[0016] The second conductive needle includes a needle tube, a spring arranged in the needle tube, and a needle head movably arranged on the inner side of the needle tube and in contact with the inner side of the spring. The inner side of the needle head passes through the needle tube and extends out of the mounting slot. A limiting platform is provided on the inner side of the needle head. The needle tube is at least partially arranged in the mounting slot, and the outer side of the needle tube extends out of the mounting slot.

[0017] The side of the socket is provided with a channel for the guide cylinder and the limiting platform to extend into the socket.

[0018] The mounting block is provided with an indicator light located on the side of the socket, and the control board is electrically connected to the indicator light through a circuit.

[0019] The control board is arranged at the bottom of the mounting block.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The automobile body wiring harness test bench of the present invention can be used to detect the situation where the conductive sheet is missing.

[0022] 2. Utilize the characteristics of the wire harness end and the conductive sheet, such as the conductivity of the conductive sheet and the structural characteristics of the protrusion, to realize the detection of the conductive sheet.

[0023] 3. The test operation of this automobile body wiring harness test bench is simple, which is convenient for operators to detect.

[0024] 4. In the connection limiting mechanism, only one cylinder is used to achieve the positioning of the wire harness end and the connection between the first conductive seat and the second conductive needle by utilizing the structural characteristics of the conductive sheet and the protrusion, which is conducive to simplifying the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of an embodiment of the present invention.

[0026] Figure 2 for Figure 1 Enlarged view of point A.

[0027] Figure 3 This is a schematic diagram of the wiring harness terminal structure. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] See also Figure 1-Figure 3 The automobile body wiring harness test bench includes a mounting block 1, a control panel 2, a socket 4 embedded in the mounting block 1 and connected to a wiring harness end 3, and a connection limiting mechanism arranged in the mounting block 1 and located on the side of the socket 4;

[0030] The socket 4 is provided with a recess 20 penetrating through the upper portion thereof and for inserting the wire harness terminal 3 .

[0031] The connection limiting mechanism includes a first conductive seat 5, a second conductive needle 6 inserted on the first conductive seat 5, an insulating sleeve 7 provided between the first conductive seat 5 and the second conductive needle 6 so as to prevent the first conductive seat 5 and the second conductive needle 6 from being connected, and a driving component for driving the first conductive seat 5 to contact the conductive sheet 8 on the wiring harness end 3 and driving the second conductive needle 6 to contact the conductive sheet 8 and be limited on the protrusion 9;

[0032] The first conductive seat 5 is arranged in the mounting block 1 and located on the side of the socket 4. The provision of the insulating sleeve 7 prevents the first conductive seat 5, the second conductive needle 6 and the control board 2 from forming a communication loop.

[0033] The control board 2 is electrically connected to the first conductive seat 5 and the second conductive needle 6 through circuits.

[0034] When testing the automobile body wiring harness, the wiring harness end 3 and the socket 4 are plugged and installed, and the driving assembly drives the first conductive seat 5 to abut against the protrusion 9, and the second conductive needle 6 to abut against the conductive sheet 8 and be confined on the protrusion 9, so that a connecting loop is formed between the first conductive seat 5, the conductive sheet 8, the second conductive needle 6 and the control board 2, and the wiring harness end 3 is fixed in the recess 20 of the socket 4.

[0035] If the conductive sheet 8 is not installed on the wiring harness end 3, a connecting circuit cannot be formed between the first conductive seat 5, the second conductive needle 6 and the control board 2, the second conductive needle 6 cannot be limited on the protrusion 9, the wiring harness end 3 cannot be fixed in the recess 20 of the socket 4, and the wiring harness end 3 can be easily removed from the socket 4.

[0036] Therefore, the automobile body wiring harness test bench of the present invention can be used to detect the missing of the conductive sheet 8, and the characteristics of the wiring harness end 3 and the conductive sheet 8, such as the conductivity of the conductive sheet 8 and the structural characteristics of the protrusion 9, are used to realize the detection of the conductive sheet 8.

[0037] Furthermore, an indicator light 17 is provided on the mounting block 1 and is located on the side of the socket 4 , and the control board 2 is electrically connected to the indicator light 17 via a circuit.

[0038] According to the test results, the indicator light 17 lights up in different colors. For example, if it lights up green, it means the test has passed, and if it lights up red, it means the test has failed. The operator needs to check whether the conductive piece 8 is missing from the wiring harness end 3.

[0039] Furthermore, the control board 2 is arranged at the bottom of the mounting block 1 .

[0040] Furthermore, the driving assembly includes a cylinder 10 embedded in the mounting block 1 and located on the side of the socket 4 , and a piston rod of the cylinder 10 is fixedly connected to the first conductive seat 5 .

[0041] The second conductive needle 6 is located above the cylinder 10 .

[0042] The cylinder 10 is used to drive the first conductive seat 5 and the second conductive needle 6 to contact with the conductive sheet 8 and to move away from the conductive sheet 8 .

[0043] In the connection limiting mechanism, only one cylinder 10 is used to achieve positioning of the wire harness end 3 and to achieve connection between the first conductive seat 5 and the second conductive needle 6 by utilizing the structural characteristics of the conductive sheet 8 and the protrusion 9, which is conducive to simplifying the structure.

[0044] Furthermore, the driving assembly includes an electromagnetic reversing valve 11 arranged below the control board 2. The electromagnetic reversing valve 11 is connected to the cylinder 10 through a pipeline, and the control board 2 is electrically connected to the electromagnetic reversing valve 11 through a circuit.

[0045] The electromagnetic reversing valve 11 is connected to an air pump externally placed on the test bench through a pipeline. The control panel 2 drives the extension and contraction of the piston rod of the cylinder 10 by controlling the operation of the electromagnetic reversing valve 11 .

[0046] The protrusion 9 is formed by bending on the conductive sheet 8. The protrusion 9 is small in size and therefore has high strength. At the same time, the air supply pressure of the air pump is not too high, which reduces the pressure on the conductive sheet 8 and the protrusion 9 when the first conductive seat 5 and the second conductive needle 6 contact the conductive sheet 8 and the protrusion 9, thereby avoiding damage to the conductive sheet 8 and the protrusion 9.

[0047] Furthermore, the mounting block 1 is provided with a reset switch 16 located on the side of the socket 4 and used to drive the electromagnetic reversing valve 11 to operate so as to retract the piston rod of the cylinder 10. The control board 2 is electrically connected to the reset switch 16 through a circuit.

[0048] The reset switch 16 is located on the side of the indicator light 17.

[0049] Furthermore, the test bench includes a push switch 12 arranged at the bottom of the socket 4 and used to cooperate with the wiring harness end 3 to trigger the operation of the drive component. The control board 2 is electrically connected to the push switch 12 through a line.

[0050] The push switch 12 protrudes upward from the recess 20 .

[0051] During the process of plugging and installing the wiring harness end 3 and the socket 4, the wiring harness end 3 is pressed down and triggers the press switch 12. The control board 2 receives the corresponding signal and drives the electromagnetic reversing valve 11 to operate so that the piston rod of the cylinder 10 extends toward the socket 4.

[0052] The push switch 12 has an elastic force that drives the wiring harness end 3 upward. If the conductive sheet 8 is not installed on the wiring harness end 3, the second conductive needle 6 can only contact the side of the wiring harness end 3, and the second conductive needle 6 cannot be limited to the protrusion 9. The elastic force is greater than the friction between the wiring harness end 3 and the socket 4, and the wiring harness end 3 will still be popped up, which also means that the conductive sheet 8 is not installed.

[0053] The control board 2 has a built-in detection device for detecting the power-on time. When the wiring harness end 3 is pressed down to trigger the press switch 12, within a preset time period, if the control board 2 does not detect that a connecting circuit is formed between the first conductive seat 5, the conductive sheet 8, the second conductive needle 6 and the control board 2, it is judged as failed. If the wiring harness end 3 can be normally limited by the second conductive needle 6, the conductive sheet 8 may be damaged, and the operator needs to check it.

[0054] That is, the press switch 12 and the reset switch 16 are respectively used to drive the electromagnetic reversing valve 11 to switch to different working positions to realize the extension and retraction of the piston rod of the cylinder 10.

[0055] Furthermore, a guide cylinder 13 is provided on the upper portion of the inner side surface of the first conductive seat 5 corresponding to the second conductive needle 6, and a mounting groove 14 is provided on the guide cylinder 13 that passes through the inner side surface of the guide cylinder 13 and the outer side surface of the first conductive seat 5;

[0056] The second conductive pin 6 is at least partially disposed in the mounting slot 14 , with the inner and outer sides of the second conductive pin 6 respectively passing through the mounting slot 14 . The insulating sleeve 7 is disposed in the mounting slot 14 and is tightly pressed between the inner wall of the mounting slot 14 and the second conductive pin 6 . The second conductive pin 6 is also tightly pressed in the mounting slot 14 to fix the second conductive pin 6 and the insulating sleeve 7 . A spacing interval is left between the second conductive pin 6 and the inner wall of the mounting slot 14 .

[0057] The first conductive seat 5 is made of copper, and the outer side of the insulating sleeve 7 can be configured to extend out of the mounting slot 14 to further ensure insulation between the second conductive needle 6 and the first conductive seat 5 .

[0058] Furthermore, the second conductive needle 6 includes a needle tube 61, a spring 62 arranged in the needle tube 61, and a needle head 63 movably arranged on the inner side of the needle tube 61 and in contact with the inner side of the spring 62. The inner side of the needle head 63 passes through the needle tube 61 and extends out of the mounting slot 14. A limiting platform 64 is provided on the inner side of the needle head 63. The needle tube 61 is at least partially arranged in the mounting slot 14, and the outer side of the needle tube 61 extends out of the mounting slot 14.

[0059] A guide post 65 is provided on the outside of the needle 63 and is located inside the needle tube 61 and is used to abut against and limit the front of the needle tube 61. The guide post 65 abuts against the spring 62, and the diameter of the guide post 65 is larger than the diameter of the needle 63.

[0060] Furthermore, a channel 18 is provided on the side of the socket 4 for the guide cylinder 13 and the limiting platform 64 to extend into the socket 4 .

[0061] The test operation of this automobile body wiring harness test bench is simple and convenient for operators to detect.

[0062] A fixing rod 21 is provided on the right portion of the bottom surface of the mounting block 1 , and the control panel 2 and the electromagnetic reversing valve 11 are both provided on the fixing rod 21 .

[0063] The above is a preferred embodiment of the present invention, which 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. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. Automobile body wiring harness test bench, characterized by: It comprises a mounting block (1), a control panel (2), a socket (4) embedded in the mounting block (1) and connected to the wiring harness end (3), and a connection limit mechanism arranged in the mounting block (1) and located on the side of the socket (4), and a protrusion (9) is provided at the middle position of the conductive sheet (8) along the length direction of the wiring harness end (3); The connection limiting mechanism comprises a first conductive seat (5), a second conductive needle (6) inserted on the first conductive seat (5), an insulating sleeve (7) arranged between the first conductive seat (5) and the second conductive needle (6) so as to disconnect the first conductive seat (5) and the second conductive needle (6), and a driving assembly for driving the first conductive seat (5) to contact the conductive sheet (8) on the wiring harness end (3) and driving the second conductive needle (6) to contact the conductive sheet (8) and be limited on the protrusion (9); The control board (2) is electrically connected to the first conductive seat (5) and the second conductive needle (6) through circuits; The driving assembly comprises a cylinder (10) embedded in the mounting block (1) and located on the side of the socket (4), and a piston rod of the cylinder (10) is fixedly connected to the first conductive seat (5); The test bench includes a push switch (12) arranged at the bottom of the socket (4) and used to cooperate with the wiring harness end (3) to trigger the operation of the drive component, and the control board (2) is electrically connected to the push switch (12) through a line.

2. The automobile body wiring harness test bench according to claim 1, characterized in that: The drive assembly comprises an electromagnetic reversing valve (11) arranged below the control panel (2); the electromagnetic reversing valve (11) is connected to the cylinder (10) via a pipeline; and the control panel (2) is electrically connected to the electromagnetic reversing valve (11) via a circuit.

3. The automobile body wiring harness test bench according to claim 2, characterized in that: The mounting block (1) is provided with a reset switch (16) located on the side of the socket (4) and used to drive the electromagnetic reversing valve (11) to operate so as to retract the piston rod of the cylinder (10). The control board (2) is electrically connected to the reset switch (16) through a circuit.

4. The automobile body wiring harness test bench according to claim 1, characterized in that: A guide cylinder (13) is provided on the upper portion of the inner side surface of the first conductive seat (5) corresponding to the second conductive needle (6), and a mounting groove (14) is provided on the guide cylinder (13) that passes through the inner side surface of the guide cylinder (13) and the outer side surface of the first conductive seat (5); The second conductive needle (6) is at least partially arranged in the installation slot (14), and the inner side and the outer side of the second conductive needle (6) respectively pass through the installation slot (14). The insulating sleeve (7) is arranged in the installation slot (14) and is tightly pressed between the inner wall of the installation slot (14) and the second conductive needle (6), and a space is left between the second conductive needle (6) and the inner wall of the installation slot (14).

5. The automobile body wiring harness test bench according to claim 4, characterized in that: The second conductive needle (6) comprises a needle tube (61), a spring (62) arranged in the needle tube (61), and a needle head (63) movably arranged on the inner side of the needle tube (61) and in contact with the inner side of the spring (62), the inner side of the needle head (63) passes through the needle tube (61) and extends out of the mounting slot (14), a limiting platform (64) is provided on the inner side of the needle head (63), the needle tube (61) is at least partially arranged in the mounting slot (14), and the outer side of the needle tube (61) extends out of the mounting slot (14).

6. The automobile body wiring harness test bench according to claim 5, characterized in that: The side of the socket (4) is provided with a channel (18) for the guide cylinder (13) and the limit platform (64) to extend into the socket (4).

7. The automobile body wiring harness test bench according to claim 1, characterized in that: The mounting block (1) is provided with an indicator light (17) located on the side of the socket (4), and the control panel (2) is electrically connected to the indicator light (17) via a circuit.

8. The automobile body wiring harness test bench according to claim 1, characterized in that: The control panel (2) is arranged at the bottom of the mounting block (1).

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