New energy automobile wire harness performance detection equipment and method

Abstract

The invention relates to the technical field of wire harness performance detection, in particular to a new energy automobile wire harness performance detection device and method.The new energy automobile wire harness performance detection device comprises a driving mechanism, the driving mechanism comprises a bottom plate and a first servo motor installed on the bottom plate, a supporting disc is installed at the driving end of the first servo motor, and a stand column is installed on the surface of the supporting disc; a lower connecting disc and an upper connecting disc are installed on the outer side of the stand column, a plurality of connecting holes are formed in the lower connecting disc and the upper connecting disc, and U-shaped blocks are arranged in the connecting holes; according to the invention, the driving mechanism and the detection mechanism are arranged, the driving mechanism is used for rotating the wire harness, and the detection mechanism is used for detecting the conductivity of the wire harness, so that the conductivity of the new energy automobile wire harness is continuously detected, and the new energy automobile wire harness does not need to be manually plugged with a detection head of a conductivity detector and is manually pulled out after being detected; time and labor are saved, and the efficiency of new energy automobile wire harness conductivity detection is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness performance detection, and in particular to a wire harness performance detection device and method for new energy vehicles. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as power sources or use conventional vehicle fuels, adopt new on-board power devices, and integrate advanced technologies in vehicle power control and drive to form vehicles with advanced technical principles, new technologies, and new structures. The wiring harness provides service equipment for a certain load source group, such as relay lines, switching devices, control systems, etc.

[0003] After the production of new energy vehicle wiring harness is completed, it is necessary to test its conductivity performance. However, the current wiring harness conductivity performance test is to manually plug the wiring harness into the detection head of the conductivity tester, and then manually unplug it after the test, which is time-consuming and labor-intensive, making the wiring harness conductivity test efficiency low. For this reason, we propose a new energy vehicle wiring harness performance test device and method. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a new energy vehicle wiring harness performance testing device and method.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is: a new energy vehicle wiring harness performance detection device and method, comprising:

[0006] A driving mechanism, the driving mechanism comprising a base plate and a first servo motor mounted on the base plate, a support plate being mounted on the driving end of the first servo motor, a column being mounted on the surface of the support plate, a lower connecting plate and an upper connecting plate being mounted on the outer side of the column, a plurality of connecting holes being provided on the lower connecting plate and the upper connecting plate, a plurality of connecting holes being provided with U-shaped blocks, a plurality of U-shaped blocks being provided with C-shaped supporting blocks, and a plurality of C-shaped supporting blocks being provided with C-shaped elastic blocks;

[0007] The detection mechanism includes a first C-shaped vertical plate installed on the base plate and an adjustment groove opened on the inner wall of the first C-shaped vertical plate, a first bidirectional screw is rotatably connected between the upper and lower sides of the inner cavity of the adjustment groove, two adjustment blocks are slidably connected in the adjustment groove, the two adjustment blocks are respectively threadedly sleeved on the outside of the two sides of the first bidirectional screw, the two adjustment blocks are fixedly connected with a connecting rod, and the two connecting rods are detachably connected with a detection plug by bolts, a second servo motor is installed on the first C-shaped vertical plate, and the driving end of the second servo motor is connected to the first bidirectional screw, a conductivity detector is installed on the first C-shaped vertical plate, and a connecting line is connected between the conductivity detector and the two detection plugs.

[0008] Preferably, it also includes a heating mechanism, which includes a second C-shaped vertical plate installed on one side of the first C-shaped vertical plate, baffles are installed on both sides of the inner wall of the second C-shaped vertical plate, and heating tubes are installed on the inner walls of the two baffles.

[0009] Preferably, a mounting plate is installed at one end of the first C-shaped vertical plate away from the second C-shaped vertical plate, a third servo motor is installed at the bottom of the mounting plate, a driving roller is installed at the driving end of the third servo motor, and hook plates are fixedly connected to both sides of the driving roller.

[0010] Preferably, a rectangular through hole is opened on the column, and a second bidirectional screw is rotatably connected between the upper and lower sides of the inner cavity of the rectangular through hole, and two rectangular blocks are slidably connected in the rectangular through hole, and the two rectangular blocks are respectively threadedly sleeved on the outer sides of the second bidirectional screw, and the two rectangular blocks are respectively connected to the upper connecting plate and the lower connecting plate.

[0011] Preferably, a circular groove is formed on the inner side of the C-shaped support block, a fixing bolt penetrates through the circular groove, and the fixing bolt is threadedly connected to the inner wall of the connecting hole.

[0012] Preferably, the detection plug has sockets on both sides of one end away from the connecting line, cylinders are slidably connected in the two sockets, first springs are respectively connected between the two cylinders and the inner cavities of the two sockets, and push rods are fixedly connected to the bottoms of the two cylinders.

[0013] Preferably, the connection length between the push rod and the cylinder is smaller than the depth of the insertion hole, and the elastic force of the spring is larger than the friction force between the cylinder and the inner wall of the insertion hole.

[0014] Preferably, ventilation holes are provided on both sides of one end of the detection plug close to the connecting line, and the ventilation holes are communicated with the socket.

[0015] Preferably, the top of the second bidirectional screw rod rotates and passes through the top of the column, and a hand wheel is installed on the top of the second bidirectional screw rod.

[0016] A method for detecting performance of a wiring harness for a new energy vehicle comprises the following steps:

[0017] Step 1: Connect the connectors at both ends of the new energy vehicle wiring harness between the C-shaped elastic blocks on the upper connection plate and the lower connection plate respectively;

[0018] Step 2: Start the first servo motor to drive the upper connection disk and the lower connection disk to rotate synchronously and intermittently so that the new energy vehicle wiring harness is placed on the inner side of the first C-shaped vertical plate, and then start the second servo motor to drive the two detection plugs to be inserted into the connectors at both ends of the new energy vehicle wiring harness to perform a conductivity performance test;

[0019] Step 3: After the conduction performance test is completed, start the second servo motor to rotate in the opposite direction to disengage the test plug from the connectors at both ends of the new energy vehicle wiring harness, then remove the tested new energy vehicle wiring harness and install the new energy vehicle wiring harness that needs to be tested.

[0020] Compared with the prior art, the present invention has the following beneficial effects: by providing a driving mechanism and a detection mechanism, the driving mechanism is used to rotate the wire harness, and the detection mechanism is used to detect the conductivity of the wire harness, so as to continuously perform the conductivity detection on the wire harness of the new energy vehicle, and there is no need to manually plug the wire harness of the new energy vehicle with the detection head of the conductivity detector and manually unplug it after the detection, which is relatively time-saving and labor-saving, and further improves the efficiency of the conductivity detection of the wire harness of the new energy vehicle;

[0021] And by rotating the second bidirectional screw by the hand wheel, the rectangular block is guided and moved in the rectangular through hole, so that the distance between the upper connecting plate and the lower connecting plate can be adjusted, thereby facilitating the conductivity detection of new energy vehicle wiring harnesses of different lengths, further improving the applicability of the detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the heating mechanism structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the detection mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection structure between the driving roller and the hook plate of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection structure between the column and the upper connecting plate and the lower connecting plate of the present invention;

[0027] Figure 6 The U-shaped block of the present invention is connected with the C-shaped support block and the C-shaped elastic block;

[0028] Figure 7 It is a cross-sectional view of the connection between the detection plug and the connector of the wiring harness of the present invention;

[0029] Figure 8 It is a schematic diagram of the local structure of the connection between the C-shaped elastic block and the wiring harness connector of the present invention; Fig. 9 It is a schematic diagram of the structure of the robot of the present invention.

[0030] In the figure:

[0031] 101, bottom plate; 102, first servo motor; 103, support plate; 104, column; 105, lower connecting plate; 106, upper connecting plate; 107, connecting hole; 108, U-shaped block; 109, C-shaped support block; 110, C-shaped elastic block; 201, second C-shaped vertical plate; 202, baffle; 203, heating tube; 301, first C-shaped vertical plate; 302, adjustment slot; 303, adjustment block; 304, first bidirectional screw rod; 305, second servo Motor; 306, conductivity tester; 307, connecting wire; 308, test plug; 309, connecting rod; 401, mounting plate; 402, third servo motor; 403, hook plate; 404, driving roller; 501, rectangular through hole; 502, rectangular block; 503, second bidirectional screw rod; 504, hand wheel; 601, circular groove; 602, fixing bolt; 701, jack; 702, spring; 703, cylinder; 704, push rod; 705, air vent. DETAILED DESCRIPTION

[0032] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0033] like Figures 1 to 8 A new energy vehicle wiring harness performance testing device shown includes:

[0034] A driving mechanism, the driving mechanism comprises a base plate 101 and a first servo motor 102 mounted on the base plate 101, a support plate 103 is mounted on the driving end of the first servo motor 102, a column 104 is mounted on the surface of the support plate 103, a lower connecting plate 105 and an upper connecting plate 106 are mounted on the outer side of the column 104, a plurality of connecting holes 107 are opened on the lower connecting plate 105 and the upper connecting plate 106, a plurality of connecting holes 107 are each provided with a U-shaped block 108, a plurality of U-shaped blocks 108 are each provided with a C-shaped supporting block 109, and a plurality of C-shaped supporting blocks 109 are each installed with a C-shaped elastic block 110;

[0035] The detection mechanism includes a first C-shaped vertical plate 301 installed on the bottom plate 101 and an adjustment groove 302 opened on the inner wall of the first C-shaped vertical plate 301. A first bidirectional screw 304 is rotatably connected between the upper and lower sides of the inner cavity of the adjustment groove 302. Two adjustment blocks 303 are slidably connected in the adjustment groove 302. The two adjustment blocks 303 are respectively threadedly sleeved on the outside of the two sides of the first bidirectional screw 304. The two adjustment blocks 303 are fixedly connected to a connecting rod 309. The two connecting rods 309 are detachably connected to a detection plug 308 by bolts. The first C-shaped vertical plate 301 is installed A second servo motor 305 is installed, and the driving end of the second servo motor 305 is connected to the first bidirectional screw rod 304. A conductivity detector 306 is installed on the first C-shaped vertical plate 301. A connecting line 307 is connected between the conductivity detector 306 and two detection plugs 308, and the connecting line 307 is elastic. When working, the upper connecting disk 106 and the lower connecting disk 105 are driven to rotate synchronously and intermittently by starting the first servo motor 102, so that when the first servo motor 102 stops rotating intermittently, the connectors at both ends of the new energy vehicle wiring harness are respectively clamped on the upper connecting disk 106 and the lower connecting disk 105. When the new energy vehicle wiring harness between the upper connecting plate 106 and the lower connecting plate 105 rotates to correspond to the detection plug 308, the second servo motor 305 is started to drive the first bidirectional screw rod 304 to rotate and cooperate with the adjustment block 303 to guide and move in the adjustment slot 302, thereby driving the two detection plugs 308 to be respectively inserted into the connectors at both ends of the new energy vehicle wiring harness, so as to cooperate with the conductivity detector 306 to detect the conductivity of the new energy vehicle wiring harness. When the detection is completed, the second servo motor 305 is started to rotate in the opposite direction to make the detection plug 308 detach from the connectors at both ends of the new energy vehicle wiring harness, and then When the new energy vehicle wiring harness is rotated and placed outside the first C-shaped vertical plate 301 after detection, the detected new energy vehicle wiring harness is removed, and then the new energy vehicle wiring harness to be detected is installed. Since the first servo motor 102 rotates intermittently, the new energy vehicle wiring harness can be removed and the new energy vehicle wiring harness to be detected can be installed during the detection of the new energy vehicle wiring harness, so that the conductivity of the new energy vehicle wiring harness can be continuously tested, and there is no need to manually plug the new energy vehicle wiring harness with the detection head of the conductivity tester 306 and manually unplug it after detection, which saves time and labor, and further improves the efficiency of the conductivity detection of the new energy vehicle wiring harness.

[0036] As a further embodiment of the present invention, it also includes a heating mechanism, which includes a second C-shaped vertical plate 201 installed on one side of the first C-shaped vertical plate 301, baffles 202 are installed on both sides of the inner wall of the second C-shaped vertical plate 201, and heating tubes 203 are installed on the inner walls of the two baffles 202. Before the new energy vehicle wiring harness is tested, the new energy vehicle wiring harness will rotate and pass through the second C-shaped vertical plate 201. When the new energy vehicle wiring harness passes through the second C-shaped vertical plate 201, the heating tube 203 heats the new energy vehicle wiring harness, thereby being able to improve the conductivity performance of the new energy vehicle wiring harness after high temperature, and further improve the effect of new energy vehicle wiring harness performance testing.

[0037] As a further embodiment of the present invention, a mounting plate 401 is installed at one end of the first C-shaped vertical plate 301 away from the second C-shaped vertical plate 201, and a third servo motor 402 is installed at the bottom of the mounting plate 401. A driving roller 404 is installed at the driving end of the third servo motor 402, and hook plates 403 are fixedly connected to both sides of the driving roller 404. When the wiring harness of the new energy vehicle is tested, when the conductivity tester 306 detects that the wiring harness of the new energy vehicle is unqualified, the processor controls the third servo motor 402 to drive the driving roller 404 to rotate, and then cooperates with the hook plate 403 to pull the unqualified new energy vehicle wiring harness from between the upper connecting plate 106 and the lower connecting plate 105, thereby eliminating the need for personnel to disassemble and discard the unqualified new energy vehicle wiring harness.

[0038] As a further embodiment of the present invention, a rectangular through hole 501 is provided on the column 104, and a second bidirectional screw rod 503 is rotatably connected between the upper and lower sides of the inner cavity of the rectangular through hole 501, and two rectangular blocks 502 are slidably connected in the rectangular through hole 501, and the two rectangular blocks 502 are respectively threadedly sleeved on the outer sides of the second bidirectional screw rod 503, and the two rectangular blocks 502 are respectively connected to the upper connecting disk 106 and the lower connecting disk 105, and the top of the second bidirectional screw rod 503 rotates through the top of the column 104, and a hand wheel 504 is installed on the top of the second bidirectional screw rod 503. The second bidirectional screw rod 503 is rotated by the hand wheel 504, and the rectangular block 502 is guided and moved in the rectangular through hole 501, so that the distance between the upper connecting disk 106 and the lower connecting disk 105 can be adjusted, thereby facilitating the conductivity detection of new energy vehicle wiring harnesses of different lengths, further improving the applicability of the detection equipment.

[0039] As a further embodiment of the present invention, a circular groove 601 is opened on the inner side of the C-shaped support block 109, and a fixing bolt 602 passes through the circular groove 601. The fixing bolt 602 is threadedly connected to the inner wall of the connecting hole 107. By twisting the fixing bolt 602, the C-shaped support block 109 can be easily disassembled and assembled, and then the C-shaped support blocks 109 and C-shaped elastic blocks 110 of different shapes can be replaced, and then the corresponding detection plug 308 can be replaced, so as to facilitate the connection detection of new energy vehicle wiring harness connectors of different shapes.

[0040] As a further embodiment of the present invention, the detection plug 308 is provided with sockets 701 on both sides of one end away from the connecting line 307, and cylinders 703 are slidably connected in the two sockets 701. The two cylinders 703 are respectively connected to the inner cavities of the two sockets 701 with first springs 702, and the bottoms of the two cylinders 703 are fixedly connected with push rods 704, the connection length between the push rod 704 and the cylinder 703 is less than the depth of the socket 701, and the elastic force of the spring 702 is greater than the friction between the cylinder 703 and the inner wall of the socket 701, and the detection plug 308 is provided with air holes 705 on both sides of the end close to the connecting line 307, and the air holes 705 are connected to the sockets. 701 are interconnected, and when the detection plug 308 is connected to the connector of the new energy vehicle wiring harness, the push rod 704 is squeezed and stored in the socket 701, and the spring 702 is compressed at the same time. Then, when the detection plug 308 is to be separated from the connector of the new energy vehicle wiring harness, the elastic force of the spring 702 pushes the push rod 704 to move, thereby assisting the separation of the connector of the new energy vehicle wiring harness from the detection plug 308, and thus effectively avoiding the damage of the new energy vehicle wiring harness caused by excessive traction when the detection plug 308 is separated from the connector of the new energy vehicle wiring harness, and through the setting of the air vent 705, the air pressure of the sockets 701 on both sides of the cylinder 703 can be ensured to be the same, thereby ensuring that the push rod 704 can move in the socket 701.

[0041] A method for detecting performance of a wiring harness for a new energy vehicle comprises the following steps:

[0042] Step 1: Connect the connectors at both ends of the new energy vehicle wiring harness between the C-shaped elastic blocks 110 on the upper connection plate 106 and the lower connection plate 105 respectively;

[0043] Step 2: Start the first servo motor 102 to drive the upper connection disk 106 and the lower connection disk 105 to rotate synchronously and intermittently so that the new energy vehicle wiring harness is placed on the inner side of the first C-shaped vertical plate 301, and then start the second servo motor 305 to drive the two detection plugs 308 to be respectively inserted into the connectors at both ends of the new energy vehicle wiring harness to perform a conductivity performance test;

[0044] Step 3: After the conduction performance test is completed, start the second servo motor 305 to rotate in the opposite direction to disengage the test plug 308 from the connectors at both ends of the new energy vehicle wiring harness, then remove the tested new energy vehicle wiring harness and install the new energy vehicle wiring harness that needs to be tested.

[0045] Working principle of the present invention:

[0046] First, according to the length of the wiring harness to be detected, the second bidirectional screw rod 503 is rotated by the hand wheel 504, and the rectangular block 502 is guided and moved in the rectangular through hole 501, so that the distance between the upper connecting disk 106 and the lower connecting disk 105 can be adjusted to adapt to the detected wiring harness length, and then the upper connecting disk 106 and the lower connecting disk 105 are driven to rotate synchronously and intermittently by starting the first servo motor 102, so that when the first servo motor 102 stops rotating intermittently, the connectors at both ends of the wiring harness of the new energy vehicle are respectively clamped between the C-shaped elastic blocks 110 on the upper connecting disk 106 and the lower connecting disk 105. When the wiring harness of the new energy vehicle between the disks 105 rotates to correspond to the detection plug 308, the second servo motor 305 is started to drive the first bidirectional screw rod 304 to rotate and cooperate with the adjustment block 303 to guide and move in the adjustment slot 302, thereby driving the two detection plugs 308 to be inserted into the connectors at both ends of the wiring harness of the new energy vehicle respectively, so as to cooperate with the conductivity tester 306 to detect the conductivity of the wiring harness of the new energy vehicle. When the detection is completed, the second servo motor 305 is started to rotate in the opposite direction to make the detection plug 308 detach from the connectors at both ends of the wiring harness of the new energy vehicle, and then the wiring harness of the new energy vehicle after the detection is rotated and placed on the outside of the first C-shaped vertical plate 301, and the detection is removed. The new energy vehicle wiring harness after testing is then installed with the new energy vehicle wiring harness that needs to be tested. Since the first servo motor 102 rotates intermittently, the new energy vehicle wiring harness can be removed and installed when the new energy vehicle wiring harness is tested, so that the new energy vehicle wiring harness can be continuously tested for conductivity, and there is no need to manually plug the new energy vehicle wiring harness with the test head of the conductivity tester 306 and manually unplug it after testing, which is more time-saving and labor-saving, and further improves the efficiency of the new energy vehicle wiring harness conductivity testing. Before the new energy vehicle wiring harness is tested, the new energy vehicle wiring harness rotates and passes through the second C-shaped vertical plate 201 When the new energy vehicle wiring harness passes through the second C-shaped vertical plate 201, the heating tube 203 heats the new energy vehicle wiring harness, and then the conductivity of the new energy vehicle wiring harness after high temperature can be tested, further improving the effect of the new energy vehicle wiring harness performance test. When testing the new energy vehicle wiring harness, when the conductivity tester 306 detects that the new energy vehicle wiring harness is unqualified, the processor controls the third servo motor 402 to drive the driving roller 404 to rotate, and then cooperates with the hook plate 403 to pull the unqualified new energy vehicle wiring harness from between the upper connecting plate 106 and the lower connecting plate 105, so that there is no need for personnel to disassemble and discard the unqualified new energy vehicle wiring harness.

[0047] 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 only describe the principles of the present invention. The present invention may have various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected, and the scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A new energy vehicle wiring harness performance testing device, characterized in that: include: A driving mechanism, the driving mechanism comprising a base plate (101) and a first servo motor (102) mounted on the base plate (101), a support plate (103) being mounted on the driving end of the first servo motor (102), a column (104) being mounted on the surface of the support plate (103), a lower connecting plate (105) and an upper connecting plate (106) being mounted on the outer side of the column (104), a plurality of connecting holes (107) being provided on the lower connecting plate (105) and the upper connecting plate (106), a plurality of connecting holes (107) being provided in each of the plurality of connecting holes (107), a C-shaped supporting block (109) being provided in each of the plurality of U-shaped blocks (108), and a C-shaped elastic block (110) being mounted on each of the plurality of C-shaped supporting blocks (109); The detection mechanism comprises a first C-shaped vertical plate (301) installed on a bottom plate (101) and an adjustment groove (302) provided on the inner wall of the first C-shaped vertical plate (301), a first bidirectional screw rod (304) being rotatably connected between the upper and lower sides of the inner cavity of the adjustment groove (302), two adjustment blocks (303) being slidably connected in the adjustment groove (302), the two adjustment blocks (303) being respectively threadedly sleeved on the outside of the two sides of the first bidirectional screw rod (304), and both of the two adjustment blocks (303) are provided with A connecting rod (309) is fixedly connected, and detection plugs (308) are detachably connected to the two connecting rods (309) by bolts. A second servo motor (305) is installed on the first C-shaped vertical plate (301), and the driving end of the second servo motor (305) is connected to the first bidirectional screw rod (304). A conductivity detector (306) is installed on the first C-shaped vertical plate (301), and a connecting line (307) is connected between the conductivity detector (306) and the two detection plugs (308).

2. A new energy vehicle wiring harness performance testing device according to claim 1, characterized in that: It also includes a heating mechanism, which includes a second C-shaped vertical plate (201) installed on one side of the first C-shaped vertical plate (301), baffles (202) are installed on both sides of the inner wall of the second C-shaped vertical plate (201), and heating pipes (203) are installed on the inner walls of the two baffles (202).

3. A new energy vehicle wiring harness performance testing device according to claim 2, characterized in that: A mounting plate (401) is installed at one end of the first C-shaped vertical plate (301) away from the second C-shaped vertical plate (201), a third servo motor (402) is installed at the bottom of the mounting plate (401), a driving roller (404) is installed at the driving end of the third servo motor (402), and hook plates (403) are fixedly connected to both sides of the outside of the driving roller (404).

4. A new energy vehicle wiring harness performance testing device according to claim 1, characterized in that: The column (104) is provided with a rectangular through hole (501), and a second bidirectional screw rod (503) is rotatably connected between the upper and lower sides of the inner cavity of the rectangular through hole (501), and two rectangular blocks (502) are slidably connected in the rectangular through hole (501), and the two rectangular blocks (502) are respectively threadedly sleeved on the outer sides of the second bidirectional screw rod (503), and the two rectangular blocks (502) are respectively connected to the upper connecting plate (106) and the lower connecting plate (105).

5. The new energy vehicle wiring harness performance testing equipment according to claim 1 is characterized in that: A circular groove (601) is provided on the inner side of the C-shaped support block (109), a fixing bolt (602) penetrates through the circular groove (601), and the fixing bolt (602) is threadedly connected to the inner wall of the connecting hole (107).

6. A new energy vehicle wiring harness performance testing device according to claim 1, characterized in that: The detection plug (308) has holes (701) on both sides of one end away from the connecting line (307), and cylinders (703) are slidably connected in the two holes (701). First springs (702) are connected between the two cylinders (703) and the inner cavities of the two holes (701), and push rods (704) are fixedly connected to the bottoms of the two cylinders (703).

7. A new energy vehicle wiring harness performance testing device according to claim 6, characterized in that: The connection length between the push rod (704) and the cylinder (703) is smaller than the depth of the insertion hole (701), and the elastic force of the spring (702) is greater than the friction force between the cylinder (703) and the inner wall of the insertion hole (701).

8. The new energy vehicle wiring harness performance testing equipment according to claim 6 is characterized in that: Air holes (705) are provided on both sides of one end of the detection plug (308) close to the connecting line (307), and the air holes (705) are communicated with the plug hole (701).

9. The new energy vehicle wiring harness performance testing equipment according to claim 1 is characterized in that: The top of the second bidirectional screw rod (503) rotates and passes through the top of the column (104), and a hand wheel (504) is installed on the top of the second bidirectional screw rod (503).

10. A method for detecting the performance of wiring harnesses of new energy vehicles, characterized in that: The following steps are involved: Step 1: respectively clamp the connectors at both ends of the new energy vehicle wiring harness between the C-shaped elastic blocks (110) on the upper connection plate (106) and the lower connection plate (105); Step 2: Start the first servo motor (102) to drive the upper connection disk (106) and the lower connection disk (105) to rotate synchronously and intermittently so that the new energy vehicle wiring harness is placed on the inner side of the first C-shaped vertical plate (301), and then start the second servo motor (305) to drive two detection plugs (308) to be respectively inserted into the connectors at both ends of the new energy vehicle wiring harness to perform a conductivity performance test; Step 3: After the conduction performance test is completed, the second servo motor (305) is started to rotate in the opposite direction to disengage the test plug (308) from the connectors at both ends of the new energy vehicle wiring harness, and then the tested new energy vehicle wiring harness is removed and installed with the new energy vehicle wiring harness to be tested.

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