Conductive wire bending life testing device applied to new energy automobile

Abstract

The invention relates to the technical field of conductive wire rod detection, and discloses a conductive wire rod bending life testing device applied to a new energy automobile, which comprises a testing machine main body and two support frames, and further comprises a rotating frame rotationally mounted between the two support frames, and a plurality of rotating seats are rotationally connected to the rotating frame; the lower portion of the rotating seat is provided with a through hole for a conductive wire to penetrate through, the bottom of the rotating seat is fixedly connected with a wire bunching ring, and a torsion mechanism is jointly installed between the rotating frame and one of the supporting frames and used for driving the rotating seat to rotate. The driving assembly and the driving assembly cooperate with each other, and in the synchronous process that the rotating frame drives the conductive wire to complete a bending test, the precise cooperation of the driving disc and the guide wheel can drive the connecting rod to do reciprocating motion in the horizontal direction, so that the rotating seat is driven to rotate around the axial direction of the rotating seat, and the torsion test of the conductive wire is achieved. The complex stress state of the conductive wire of the new energy automobile in the actual working condition can be truly simulated through the composite motion mode.

Description

Technical Field

[0001] The present invention relates to the technical field of conductive wire detection, and in particular to a conductive wire bending life testing device applied to new energy vehicles. Background Art

[0002] Like blood vessels in the human body, conductive cables for new energy vehicles carry the core functions of power and signal transmission, forming a crucial component of both the vehicle's powertrain and electrical systems. Since these cables are frequently subjected to external forces such as vibration and mechanical displacement during operation, flex life testing is crucial. This test assesses whether repeated bending of the cables will result in insulation cracking, conductor breakage, and electrical performance degradation, ensuring that the cables maintain stable conductivity and protection throughout the vehicle's lifecycle.

[0003] In the bending test of the conductive wire, the wire bending tester can drive the clamped wire to rotate back and forth to realize the bending test of the wire. For example, the patent with the prior art announcement number CN113533100A discloses an adjustable wire bending and swing testing machine. The first motor drives the upper mounting frame to drive multiple parallel clamping components to rotate back and forth within the range of -180 degrees to 180 degrees to perform a bending and swing test on the wire. The first motor also drives the upper mounting frame to drive the clamping components to rotate cyclically to perform a winding test on the wire, which can effectively and accurately test the performance of the wire.

[0004] However, existing technology still has the following drawbacks: Current wire bending testers are only capable of performing bend tests. However, in reality, the wires used in new energy vehicles not only bend but also twist. For example, the wiring harness connecting the motor and controller will bend and twist to a certain extent due to the motor's vibration; similarly, the conductive wires in the moving parts of the vehicle body experience similar bending and twisting. Because existing tests cannot accurately simulate the actual application scenarios of conductive wires in new energy vehicles, the reference value of the test results is greatly reduced. Summary of the Invention

[0005] In view of the problem that the existing technology has a single testing scenario for conductive wires and cannot meet the real application scenarios of new energy vehicles, a conductive wire bending life testing device for new energy vehicles is proposed.

[0006] Its purpose is to: while conducting a bending test on the conductive wire, drive the conductive wire to twist through the torsion mechanism to achieve multiple tests and meet the real application scenarios of the conductive wire in new energy vehicles.

[0007] The technical solution of the present invention is a conductive wire bending life test device applied to new energy vehicles, comprising a testing machine main body and two support frames, further comprising a rotating frame rotatably installed between the two support frames, one end of the rotating frame being connected to the power shaft of the testing machine main body, a plurality of rotating seats being rotatably connected to the rotating frame, a through hole for the conductive wire to pass through is provided on the lower portion of the rotating seat, a wire harness ring is fixedly connected to the bottom of the rotating seat, a slide groove is provided on the upper portion of the rotating seat, a clamping assembly is installed in the slide groove, and the clamping assembly is used to fix the test end of the conductive wire, a wire harness assembly connected to the two support frames is provided on the lower side of the rotating frame, the wire harness assembly is used to limit the lower end of the conductive wire, a torsion mechanism is commonly installed between the rotating frame and one of the support frames, and the torsion mechanism is used to drive the rotating seat to rotate;

[0008] The torsion mechanism includes a driving assembly and a driving assembly, the driving assembly includes a gear ring fixedly mounted on one of the support frames, and a driving disk rotatably connected to one end of the rotating frame, a driving groove is provided on the driving disk, the driving assembly includes a driving rod slidingly engaged with the rotating frame, the end of the driving rod extends to the outside of the rotating frame, the driving rod is used to drive the wiring ring to rotate, and one end of the driving rod is fixedly connected to a connecting rod, a guide wheel is installed on the connecting rod, and the guide wheel is arranged in the driving groove.

[0009] Furthermore, the rotating frame includes two rotating disks, which are rotatably connected to the corresponding support frames. Two U-shaped plates are fixedly connected between the two rotating disks. Multiple limiting wheels are rotatably connected in the grooves of the U-shaped plates, and the rotating seat is in rolling contact with the corresponding limiting wheels.

[0010] Furthermore, the clamping assembly includes two clamping blocks, the clamping blocks are slidably connected to the slide grooves, an adjusting screw is threadedly connected to the clamping blocks, and the adjusting screw is rotatably connected to the rotating seat.

[0011] Furthermore, the inner diameter of the wire harness ring is larger than the diameter of the conductive wire, and the bottom end of the wire harness ring is chamfered.

[0012] Furthermore, a mounting seat is fixedly installed on one of the rotating disks, the driving disk is rotatably connected to the mounting seat, a tooth groove is opened on the circumferential side of the driving disk, and a transmission gear is also rotatably installed on the mounting seat, and the gear ring and the tooth groove are both engaged with the transmission gear.

[0013] Furthermore, a plurality of racks are fixedly connected to the driving rod, one side of the racks is meshedly connected to a gear ring, and the gear ring is fixedly connected to the outer wall of the cable tie ring.

[0014] Furthermore, an adjustment hole is provided on the connecting rod, an adjustment slider is slidably connected to the adjustment hole, and the guide wheel is mounted on the adjustment slider.

[0015] Furthermore, the wiring harness assembly includes a cross bar that is slidably connected to two support frames, and fastening bolts are threadedly connected to both ends of the cross bar. A plurality of movable sleeves are vertically slidably connected to the cross bar, and the movable sleeves are arranged corresponding to the wiring harness rings. Two wiring harness plates are slidably connected to the upper part of the movable sleeves, and an elastic member is commonly connected between the wiring harness plate and the movable sleeves.

[0016] Furthermore, the cable tie plate is in a U-shaped structure, two cable tie plates are arranged alternately, and anti-slip grooves are fixed on one side wall of the cable tie plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the coordinated cooperation of the drive assembly and the guide assembly, while the rotating frame simultaneously drives the conductive wire to complete the bending test, the precise coordination of the drive disc and the guide wheel drives the connecting rod to achieve horizontal reciprocating motion, which in turn drives the rotating base to rotate about its own axis, completing the torsion test of the conductive wire. This composite motion mode can realistically simulate the complex stress conditions of the conductive wire in new energy vehicles under actual operating conditions, significantly improving the authenticity and reliability of the test scenario and ensuring that the test results accurately reflect the actual service life of the wire.

[0019] 2. By varying the radial position of the guide wheel on the connecting rod, the connecting rod's horizontal displacement can be precisely controlled, enabling stepless adjustment of the rotating seat's rotation angle. This not only meets the differentiated testing needs of conductive wires of varying specifications, but also enables multi-dimensional torsion angle testing of the same wire, building a comprehensive mechanical properties database and providing a scientific basis for optimized wire design.

[0020] 3. By adjusting the guide wheel to the working position away from the drive disc, the driven component stops following the movement, and the test device can immediately switch to a separate bending test mode. This design enables the device to adapt to a variety of testing scenarios and enhances its flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the support base and rotating frame structure of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the rotating frame and rotating seat of the present invention;

[0024] Figure 4 It is a vertical split schematic diagram of the rotating seat and the cable tie ring structure of the present invention;

[0025] Figure 5This is a schematic diagram of the structure of the drive assembly of the present invention;

[0026] Figure 6 It is a schematic diagram of the gear ring and cable tie ring structure of the present invention;

[0027] Figure 7 This is a horizontal split schematic diagram of the drive disc and guide wheel structure of the present invention;

[0028] Figure 8 This is a schematic structural diagram of a wiring harness assembly according to the present invention;

[0029] Figure 9 It is a schematic cross-sectional view of the movable sleeve structure of the present invention.

[0030] In the picture:

[0031] 1. Testing machine body; 2. Support frame; 3. Rotating frame; 31. Rotating disk; 32. U-shaped plate; 4. Rotating seat; 5. Cable tie ring; 6. Clamping assembly; 61. Clamping block; 62. Adjusting screw; 7. Driving assembly; 71. Gear ring; 72. Mounting seat; 73. Driving disk; 74. Driving groove; 75. Transmission gear; 76. Gear groove; 8. Driving assembly; 81. Driving rod; 82. Rack; 83. Gear ring; 84. Connecting rod; 85. Adjusting hole; 86. Guide wheel; 87. Adjusting slider; 9. Cable tie assembly; 91. Cross bar; 92. Fastening bolt; 93. Movable sleeve; 94. Cable tie plate. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] Example 1, with reference to Figure 1-Figure 7, which is the first embodiment of the present invention, provides a conductive wire bending life test device for new energy vehicles, including a testing machine body 1 and two support frames 2, and also includes a rotating frame 3 rotatably installed between the two support frames 2, one end of the rotating frame 3 is connected to the power shaft of the testing machine body 1, and a plurality of rotating seats 4 are rotatably connected to the rotating frame 3. The lower part of the rotating seat 4 is provided with a through hole for the conductive wire to pass through, and the bottom of the rotating seat 4 is fixedly connected to a wire harness ring 5. The upper part of the rotating seat 4 is provided with a slide groove, and a clamping assembly 6 is installed in the slide groove. The clamping assembly 6 is used to fix the test end of the conductive wire, and the lower side of the rotating frame 3 is provided with a wire harness assembly 9 connected to the two support frames 2. The wire harness assembly 9 is used to The lower end of the wire is limited, and a torsion mechanism is installed between the rotating frame 3 and one of the support frames 2. The torsion mechanism is used to drive the rotating seat 4 to rotate; the torsion mechanism includes a driving assembly 7 and a driving assembly 8. The driving assembly 7 includes a gear ring 71 fixedly mounted on one of the support frames 2, and a driving disk 73 rotatably connected to one end of the rotating frame 3. A driving groove 74 is provided on the driving disk 73. The driving assembly 8 includes a driving rod 81 that slides with the rotating frame 3. The end of the driving rod 81 extends to the outside of the rotating frame 3. The driving rod 81 is used to drive the wiring ring 5 to rotate, and one end of the driving rod 81 is fixedly connected to a connecting rod 84. A guide wheel 86 is installed on the connecting rod 84, and the guide wheel 86 is arranged in the driving groove 74.

[0034] Specifically, the conductive wire passes through the cable tie ring 5 and the interior of the rotating base 4 from bottom to top. Its test end is firmly clamped and fixed by the clamping assembly 6, and the lower end is inserted into the cable tie assembly 9 to achieve position limiting. When the power shaft of the testing machine body 1 drives the rotating frame 3 to rotate back and forth, the conductive wire can be subjected to bending testing. During the rotation of the rotating frame 3, the drive disc 73 and the gear ring 71 drive contact, causing the drive disc 73 to rotate. At this time, the drive slot 74 and the guide wheel 86 cooperate with each other to drive the drive rod 81 to reciprocate. In turn, the drive rod 81 drives the rotating base 4 itself to rotate back and forth axially, ultimately achieving a torsion test on the conductive wire.

[0035] The transmission between the drive disc 73 and the gear ring 71, and the cooperation between the drive slot 74 and the guide wheel 86, drives the rotating base 4 to rotate axially back and forth, performing a torsional test on the conductive wire, simulating the torsional forces exerted on the conductive wire. Combining the bending and torsion tests allows for a more comprehensive assessment of the bending life of the conductive wire, providing a more reliable basis for quality assessment of the conductive wire used in new energy vehicles.

[0036] Reference Figure 3 The rotating frame 3 includes two rotating disks 31, which are rotatably connected to the corresponding support frame 2. Two U-shaped plates 32 are fixedly connected between the two rotating disks 31. Multiple limiting wheels are rotatably connected in the grooves of the U-shaped plates 32, and the rotating seat 4 is in rolling contact with the corresponding limiting wheels.

[0037] Specifically, the limiting wheels adopt a convex structural design and are symmetrically distributed in the notches on both sides of the U-shaped plate 32. During operation, the limiting wheels are in close contact with the arc side of the rotating seat 4 and maintain a rolling state. This design allows the rotating seat 4 to not only flexibly rotate around its own axis, but also rotate around the axis of the rotating frame 3. In this way, during operation, the device can not only perform bending tests on the conductive wires through the rotation of the rotating frame 3, but also perform torsion tests by utilizing the axial rotation of the rotating seat 4 itself. The two testing methods work together to comprehensively and accurately simulate the stress conditions of the conductive wires of new energy vehicles in actual use.

[0038] The rotating disk 31 is provided with a mounting hole, and the end of the U-shaped plate 32 is provided with a threaded hole. The mounting hole of the rotating disk 31 is connected to the threaded hole of the U-shaped plate 32 through a screw to achieve a detachable connection of the rotating frame 3.

[0039] Reference Figure 4 The clamping assembly 6 includes two clamping blocks 61, the clamping blocks 61 are slidably connected to the slide groove, and an adjusting screw 62 is threadedly connected to the clamping block 61, and the adjusting screw 62 is rotatably connected to the rotating seat 4.

[0040] Specifically, by rotating the adjustment screw 62, the principle of threaded transmission is utilized to drive the clamping block 61, which is slidably connected to the slide slot, to move toward the through-hole of the rotating base 4. As the adjustment screw 62 continues to rotate, the two clamping blocks 61 approach each other until they tightly abut the conductive wire, thereby firmly securing the conductive wire and ensuring its stability on the rotating base 4, providing a reliable foundation for subsequent bending life testing.

[0041] It should be noted that the rotating seat 4 is composed of two upper and lower rotating plates. The opposite sides of the two rotating plates are each provided with a rotating groove adapted to the adjusting screw 62. A through hole is opened on the lower rotating plate, and the two rotating plates are installed and connected by bolts.

[0042] Reference Figure 4 The inner diameter of the wire tie ring 5 is larger than the diameter of the conductive wire, and the bottom end of the wire tie ring 5 is chamfered.

[0043] Specifically, the conductive wire passes through the through-holes of the cable tie ring 5 and the rotating base 4 from bottom to top, and is then securely held in place by the clamping assembly 6. Because the inner diameter of the cable tie ring 5 is larger than the conductive wire's diameter and its bottom end is chamfered, when the rotating base 4 rotates, the conductive wire only contacts the chamfered portion of the cable tie ring 5. This structural design effectively prevents excessive wear caused by friction between the two, greatly improving the protection of the conductive wire, ensuring the integrity of the conductive wire during testing, and making the test results more reliable and accurate.

[0044] Reference Figure 2 、 Figure 5A mounting seat 72 is fixedly mounted on one of the rotating disks 31, and a driving disk 73 is rotatably connected to the mounting seat 72. A tooth groove 76 is provided on the circumferential side of the driving disk 73, and a transmission gear 75 is also rotatably mounted on the mounting seat 72. The gear ring 71 and the tooth groove 76 are both engaged with the transmission gear 75.

[0045] Specifically, when the rotating frame 3 begins to rotate, the mounting base 72 moves accordingly, driving the transmission gear 75 mounted thereon to engage with the gear ring 71 fixed to the support frame 2. Constrained by the gear ring 71, the transmission gear 75 rotates and, through engagement with the circumferential tooth grooves 76 of the drive plate 73, transmits power to the drive plate 73, causing it to rotate. During the rotation of the drive plate 73, the drive groove 74 formed therein forms a linkage with the guide wheel 86, thereby driving the drive rod 81 to reciprocate horizontally, providing the power source for the subsequent axial rotation of the rotating base 4.

[0046] Reference Figure 6 A plurality of racks 82 are fixedly connected to the driving rod 81 , and a gear ring 83 is meshedly connected to one side of the rack 82 , and the gear ring 83 is fixedly connected to the outer wall of the cable tie ring 5 .

[0047] Specifically, when the driving rod 81 is driven to reciprocate horizontally, the rack 82 affixed thereto moves synchronously. Because the rack 82 is meshed with the ring gear 83 affixed to the outer wall of the cable tie ring 5, the ring gear 83 drives the cable tie ring 5 to rotate. Because the rotating base 4 is connected to the cable tie ring 5, it also rotates synchronously, ultimately achieving torsion testing of the conductive wire.

[0048] Example 2, reference Figure 7 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that an adjustment hole 85 is provided on the connecting rod 84, an adjustment slider 87 is slidably connected to the adjustment hole 85, and a guide wheel 86 is installed on the adjustment slider 87.

[0049] Specifically, by adjusting the sliding movement of slider 87 within adjustment hole 85, the relative position of guide wheel 86 within drive slot 74 can be flexibly changed. Because the distance between guide wheel 86 and the center of drive disk 73 is adjustable, the distance traveled by driving rod 81 during the rotation of drive disk 73 also changes accordingly. This adjustment mechanism precisely controls the rotational amplitude of the cable tie ring 5 and rotating base 4, thereby enabling flexible adjustment of the torsion angle of the conductive wire. This allows the test device to accommodate conductive wires of varying specifications and test standards, greatly enhancing the device's versatility and testing flexibility, and meeting diverse testing needs.

[0050] It is understood that the length of the adjustment hole 85 is greater than the length of the drive slot 74. When the guide wheel 86 is adjusted to the end of the adjustment hole 85, the guide wheel 86 loses contact with the drive slot 74. At this time, when the rotating frame 3 rotates, the driven component 8 does not move. This allows only the conductive wire to be bent, thereby improving the flexibility of conductive wire testing. The remaining structure is the same as that of Example 1.

[0051] Example 3, reference Figure 8 、 Figure 9 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the wiring assembly 9 includes a cross bar 91 slidably connected to the two support frames 2, and fastening bolts 92 are threadedly connected at both ends of the cross bar 91. A plurality of movable sleeves 93 are vertically slidably connected to the cross bar 91. The movable sleeves 93 are arranged corresponding to the wiring rings 5. Two wiring plates 94 are slidably connected to the upper part of the movable sleeves 93, and an elastic member is commonly connected between the wiring plate 94 and the movable sleeves 93.

[0052] Specifically, a movable sleeve 93 is provided directly below each wire harness ring 5. The two wire harness plates 94 in the movable sleeve 93 work together with the elastic member to stably clamp and fix the lower part of the conductive wire. When the rotating frame 3 drives the rotating seat 4 to flip, the conductive wire is subjected to the bending force, and the lower part of the wire will move upward. At this time, the vertical sliding cooperation between the movable sleeve 93 and the cross bar 91 can flexibly adapt to the displacement change of the wire and ensure that the test process proceeds smoothly. At the same time, since the lower part of the conductive wire is firmly fixed by the wire harness assembly 9 and cannot rotate, when the rotating seat 4 rotates, the torsional force will be concentrated on the test part of the conductive wire, thereby achieving accurate torsion testing and more realistically simulating the stress state of the conductive wire under actual working conditions.

[0053] Reference Figure 9 The wire harness plate 94 is in a U-shaped structure, the two wire harness plates 94 are staggered, and one side wall of the wire harness plate 94 is provided with anti-slip grooves.

[0054] Specifically, manually pinch two staggered wire-binding plates 94 together, moving their adjacent ends away from each other to create a gap for the conductive wire to pass through. Once the conductive wire is in place, release the wire-binding plates 94. The elastic members quickly reposition the two wire-binding plates 94 and allow them to fit snugly together. The friction generated by the anti-slip grooves and the surface of the conductive wire securely holds the wire, ensuring it remains stable and stable during testing. The remaining structure is identical to that of Example 2.

[0055] Based on Examples 1-3, the working principle of the present invention is as follows: during testing, the upper portion of the conductive wire passes through the cable tie ring 5 and the rotating seat 4 in sequence from bottom to top, the test end is fixed by the clamping assembly 6, and the lower end of the conductive wire is limited by the cable tie assembly 9. The testing machine body 1 drives the rotating frame 3 to rotate back and forth to perform a bending test on the conductive wire. At the same time, when the rotating frame 3 rotates, the mounting seat 72 drives the transmission gear 75 to engage with the fixed gear ring 71, causing the transmission gear 75 to rotate and drive the driving disk 73 to rotate. The driving groove 74 on the driving disk 73 cooperates with the guide wheel 86, driving the driving rod 81 to move back and forth horizontally. The driving rod 81 engages with the rack 82 and the gear ring 83, causing the cable tie ring 5 and the rotating seat 4 to rotate synchronously, thereby achieving a torsion test on the conductive wire.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A conductive wire bending life test device for new energy vehicles, comprising a testing machine body and two support frames, characterized in that: The cam is provided with a plurality of rotating seats, the lower portion of which is provided with a through hole for passing the conductive wire, the bottom portion of the rotating seat is fixedly connected with a wire harness ring, the upper portion of the rotating seat is provided with a slide groove, the upper portion of the rotating seat is provided with a clamping assembly, the clamping assembly is installed in the slide groove, and the clamping assembly is used to fix the test end of the conductive wire, and the lower side of the rotating frame is provided with a wire harness assembly connected to the two support frames, the wire harness assembly is used to limit the lower end of the conductive wire, and a torsion mechanism is jointly installed between the rotating frame and one of the support frames, and the torsion mechanism is used to drive the rotating seat to rotate; The torsion mechanism includes a driving assembly and a driving assembly, the driving assembly includes a gear ring fixedly mounted on one of the support frames, and a driving disk rotatably connected to one end of the rotating frame, a driving groove is provided on the driving disk, the driving assembly includes a driving rod slidingly engaged with the rotating frame, the end of the driving rod extends to the outside of the rotating frame, the driving rod is used to drive the wiring ring to rotate, and one end of the driving rod is fixedly connected to a connecting rod, a guide wheel is installed on the connecting rod, and the guide wheel is arranged in the driving groove.

2. The conductive wire bending life testing device for new energy vehicles according to claim 1, characterized in that: The rotating frame includes two rotating disks, which are rotatably connected to the corresponding supporting frames. Two U-shaped plates are fixedly connected between the two rotating disks. Multiple limiting wheels are rotatably connected in the grooves of the U-shaped plates, and the rotating seat is in rolling contact with the corresponding limiting wheels.

3. The conductive wire bending life testing device for new energy vehicles according to claim 1, characterized in that: The clamping assembly includes two clamping blocks, the clamping blocks are slidably connected to the slide grooves, an adjusting screw is threadedly connected to the clamping blocks, and the adjusting screw is rotatably connected to the rotating seat.

4. The conductive wire bending life testing device for new energy vehicles according to claim 1, characterized in that: The inner diameter of the wire harness ring is larger than the diameter of the conductive wire, and the bottom end of the wire harness ring is chamfered.

5. The conductive wire bending life testing device for new energy vehicles according to claim 2, characterized in that: A mounting seat is fixedly mounted on one of the rotating disks, and the driving disk is rotatably connected to the mounting seat. A tooth groove is provided on the circumferential side of the driving disk, and a transmission gear is rotatably mounted on the mounting seat. The gear ring and the tooth groove are both meshed with the transmission gear.

6. The conductive wire bending life testing device for new energy vehicles according to claim 1, characterized in that: A plurality of racks are fixedly connected to the driving rod, one side of the rack is meshedly connected to a gear ring, and the gear ring is fixedly connected to the outer wall of the cable tie ring.

7. The conductive wire bending life testing device for new energy vehicles according to claim 1, characterized in that: An adjusting hole is provided on the connecting rod, an adjusting slider is slidably connected to the adjusting hole, and the guide wheel is mounted on the adjusting slider.

8. The conductive wire bending life testing device for new energy vehicles according to claim 1, characterized in that: The wiring harness assembly includes a cross bar slidably connected to two support frames, both ends of the cross bar are threadedly connected to fastening bolts, a plurality of movable sleeves are vertically slidably connected to the cross bar, the movable sleeves are arranged corresponding to the wiring harness rings, and two wiring harness plates are slidably connected to the upper part of the movable sleeves, and an elastic member is commonly connected between the wiring harness plate and the movable sleeves.

9. The conductive wire bending life testing device for new energy vehicles according to claim 8, characterized in that: The cable tie plate is in a U-shaped structure, two cable tie plates are arranged alternately, and anti-slip grooves are fixed on one side wall of the cable tie plate.

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