A cable harness detection device for new energy vehicles

Abstract

The invention discloses a cable harness detection device for new energy vehicles, belonging to the technical field of harness detection, which comprises: a lower guide post, on which a first wire clamp is axially slidably installed; an upper guide post, located above the lower guide post and relatively fixed to the lower guide post, on which a second wire clamp is axially slidably installed, and the second wire clamp and the first wire clamp are used to clamp and fix the upper and lower ends of the cable harness respectively; and a plurality of elastic bodies, arranged beside the lower guide post and / or the upper guide post. Beneficial effects: The technical solution of this application clamps and fixes the vertical harness by the first wire clamp and the second wire clamp and straightens and tightens it, and then a pair of push rods move towards each other to bend the harness. By changing the relative positions of the pair of push rods and making the pair of push rods rotate around the harness, the bending direction of the harness is changed to meet the requirements of bending the harness in various directions. The harness path test work is completed under the condition of truly reproducing the working state of the cable harness, and the test result can truly reflect the quality of the harness.

Description

Technical Field

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

[0002] The vehicle wire harness is the network main body of the vehicle circuit. Without the wire harness, there would be no vehicle circuit. Especially nowadays, new energy vehicles are developing towards the intelligent direction, and the wire harnesses on the vehicle body are increasing in number and complex in sorting. A large number of complex wire harnesses have an increasing impact on the driving safety of the vehicle. Once any wire harness, especially the wire harnesses of important system components such as the direction control system, the vehicle machine system, the intelligent auxiliary driving system, and the braking system, has a problem, it will pose a serious threat to the driving safety of the vehicle. Therefore, new energy vehicles put forward higher requirements for the safe and stable operation of wire harnesses than traditional fuel vehicles, so the quality inspection requirements for wire harnesses are also improved synchronously.

[0003] However, the current cable wire harness path detection device cannot complete the wire harness path test under the condition of truly reproducing the working state of the cable wire harness. For example, the wire harness path detection device recorded in the patent with the publication number CN119757924A drives the rotating frame and the wire conduit to rotate around the axis perpendicular to the plane on a certain plane through the first motor. The wire harness is arranged through the wire conduit. Therefore, the wire harness also only rotates around the axis perpendicular to the plane on a certain plane. Further, if the first motor cannot frequently reverse and change directions, the wire harness can only bend in one direction, while the actual situation is that the wire harness will randomly bend in various directions disorderly. Especially the wire harnesses near the vehicle suspension system. The suspension system will constantly move up and down during driving, resulting in frequent bending of the nearby wire harnesses, and the bending direction depends on the road conditions. Because the suspension system has multi-directional movements under complex road conditions, the wire harness will be subjected to multi-directional stresses, resulting in an uncertain bending direction. Therefore, the wire harness only bends in one or two directions for the path performance test cannot truly reflect the quality of the wire harness.

[0004] In addition, although the stepper motor and the servo motor can be paired with the controller and the driver to achieve frequent commutation of the stepper motor and the servo motor, if the commutation frequency is very high, such as commuting once a second, the problems of motor and driver heating, mechanical component wear, vibration and noise problems caused by commutation inertia impact will be very prominent under such a high commutation frequency. Obviously, the bending test action of the wire harness near the suspension system belongs to this situation where a very high commutation frequency is required. Summary of the Invention

[0005] The main object of the present invention is to propose a cable wire harness detection device for new energy vehicles, aiming to solve the problem that the current wire harness path performance test cannot truly reflect the quality of the wire harness mentioned in the above background art.

[0006] In order to solve the above problems, the present invention proposes a cable harness detection device for new energy vehicles, comprising: a lower guide post, on which a wire clamp 1 is axially slidably installed; an upper guide post, located above the lower guide post and relatively fixed with the lower guide post, on which a wire clamp 2 is axially slidably installed, and the wire clamp 2 and the wire clamp 1 are used to clamp and fix the upper and lower ends of the cable harness respectively;

[0007] A plurality of elastic bodies are arranged beside the lower guide column and / or the upper guide column and connected to the wire clamp 1 and / or the wire clamp 2. The wire clamp 1 slides along the lower guide column and / or the wire clamp 2 slides along the upper guide column to drive the elastic body to stretch or contract. The elastic body is used to make the wire clamp 2 and the wire clamp 1 straighten and tighten the cable harness;

[0008] The mounting plate is rotatably arranged around the straightened and tightened cable harness, and a pair of sliding rods located on both sides of the straightened and tightened cable harness are arranged on the mounting plate, and the sliding rods can slide along the length direction of the straightened and tightened cable harness on the mounting plate, and a push rod is slidably installed on each sliding rod, and the mounting plate rotates around the straightened and tightened cable harness to drive the sliding rod and the push rod to rotate around the straightened and tightened cable harness as the center;

[0009] The reciprocating mechanism is connected to the push rod and is used to push the push rod to reciprocate relative to the slide rod. A pair of push rods move forward to approach the straightened and tightened cable harness and bend the cable harness, and a pair of push rods move backward to move away from the cable harness to restore the bent cable harness to straighten and tighten.

[0010] In one embodiment, the lower end of the lower guide column is fixedly connected to a base, the base is provided with a swivel seat for rotating around the straightened and tightened cable harness, and the mounting plate is fixedly connected to the swivel seat;

[0011] The base is provided with a driving device 1, which is transmission-connected with the swivel seat and is used for driving the swivel seat to rotate.

[0012] In one embodiment, the base is fixedly connected to a mounting frame, and the upper guide column is fixedly connected to the mounting frame;

[0013] The elastic body is a spring, and the spring is connected to the mounting frame or the base.

[0014] In one embodiment, a pair of sliding rods are connected by a second transmission belt, and the second transmission belt is wound on a pair of pulleys arranged at intervals. The pulleys are rotationally connected to the mounting plate, and a second driving device connected to the pulley transmission is provided on the mounting plate. The second driving device drives the pulley to rotate, and drives a pair of sliding rods to move toward or away from each other along the length direction of the straightened and tightened cable harness through the second transmission belt.

[0015] In one embodiment, a long and through sliding hole extending along the length direction of the cable harness that is straightened and tightened is provided on the mounting plate, and the sliding rod penetrates through the sliding hole and is slidably connected to the sliding hole;

[0016] The push rod is located at one end of the sliding rod, and the second transmission belt is located at the other end of the sliding rod.

[0017] In one embodiment, a clamping groove is provided at one end of the push rod. When the push rod moves forward and approaches the cable harness that is straightened and tightened, the cable harness enters the clamping groove.

[0018] In one embodiment, the reciprocating movement mechanism includes: a third driving device fixedly connected to the mounting plate; an eccentric wheel drivingly connected to the third driving device, and the push rod abuts against the outer circumferential surface of the eccentric wheel; an elastic element connected to the sliding rod and the push rod. The third driving device drives the eccentric wheel to rotate to push the push rod to reciprocate relative to the sliding rod, and drives the elastic element to stretch or contract. The elastic element is used to keep the push rod in contact with the outer circumferential surface of the eccentric wheel.

[0019] In one embodiment, the push rod is fixedly connected with a push plate. During the process that the sliding rod drives the push rod to move along the length direction of the cable harness that is straightened and tightened, the push plate remains in contact with the outer circumferential surface of the eccentric wheel.

[0020] In one embodiment, a pair of push rods are arranged at intervals along the length direction of the cable harness that is straightened and tightened;

[0021] When the pair of push rods move forward, two bending points are simultaneously generated on the cable harness, and the bending angles of the two bending points always remain equal in magnitude and opposite in direction.

[0022] In one embodiment, the push rod reciprocates along its own axis direction.

[0023] Advantageous effects: The technical solution of the present application clamps and fixes the vertical wire harness by the first wire clamp and the second wire clamp and straightens and tightens it. Then, a pair of push rods move towards each other to bend the wire harness. By changing the relative positions of the pair of push rods and making the pair of push rods rotate around the wire harness, the bending direction of the wire harness is changed to meet the requirements of bending the wire harness in various directions. The wire harness passage test work is completed under the condition of truly reproducing the working state of the cable harness, and the test results can truly reflect the quality of the wire harness. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 is the structural schematic diagram of a cable harness detection device for a new energy vehicle according to the present invention Figure 1 ;

[0026] Figure 2 is the structural schematic diagram of a cable harness detection device for a new energy vehicle according to the present invention Figure 2 ;

[0027] Figure 3 is the structural schematic diagram when the cable harness is straightened and tightened

[0028] Figure 4 is the structural schematic diagram when the cable harness is bent Figure 1 ;

[0029] Figure 5 is the structural schematic diagram when the cable harness is bent Figure 2 .

[0030] The description of the reference numerals is as follows:

[0031] 1, chassis; 2, thrust bearing; 3, rotary seat; 4, fixed table; 5, lower guide post; 6, lower limit block; 7, first spring; 8, first wire clamp; 9, first machine base; 10, first motor; 11, first transmission belt; 12, mounting bracket; 13, upper guide post; 14, second wire clamp; 15, second spring; 16, upper limit block; 17, mounting plate; 18, sliding hole; 19, sliding rod; 20, slider; 21, sliding plate; 22, second transmission belt; 23, pulley; 24, second motor; 25, push rod; 26, card slot; 27, push plate; 28, third spring; 29, first eccentric wheel; 30, third motor; 31, second machine base; 32, third transmission belt; 33, transmission shaft; 34, second eccentric wheel; 35, shaft seat; 36, cable harness. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0033] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0034] In the present invention, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] The present invention provides a cable harness detection device for new energy vehicles. The cable harness detection device for new energy vehicles clamps and fixes a vertical cable harness tightly and straightens it through clamp one 8 and clamp two 14, and then a pair of push rods 25 move towards each other to bend the cable harness. By changing the relative positions of the pair of push rods 25 and causing the pair of push rods 25 to rotate around the cable harness, the bending direction of the cable harness is changed to meet the requirement of bending the cable harness in all directions. The cable harness path test work is completed under the condition of truly reproducing the working state of the cable harness 36, and the test results can truly reflect the quality of the cable harness.

[0037] Specifically, in an embodiment of the invention, as Figure 1 and Figure 2 shown, the cable harness detection device for new energy vehicles includes: lower guide post 5, upper guide post 13, several elastic bodies, mounting plate 17, and reciprocating movement mechanism. A clamp one 8 is axially slidably mounted on the lower guide post 5. Preferably, the lower guide post 5 is vertically arranged to quickly straighten and tighten the cable harness 36.

[0038] In this embodiment, as Figure 1 and Figure 2As shown, the upper guide post 13 is located above the lower guide post 5 and is relatively fixed with the lower guide post 5. The so-called relatively fixed means that taking the lower guide post 5 as a reference, the upper guide post 13 is stationary relative to the lower guide post 5, and vice versa. A second wire clamp 14 is axially slidably mounted on the upper guide post 13. The second wire clamp 14 and the first wire clamp 8 are used to clamp and fix the upper and lower ends of the cable harness 36 respectively. Preferably, the upper guide post 13 is vertically arranged so as to quickly straighten and tighten the cable harness 36.

[0039] In this embodiment, a plurality of elastic bodies are arranged beside the lower guide post 5 and / or the upper guide post 13 and are connected to the first wire clamp 8 and / or the second wire clamp 14. The sliding of the first wire clamp 8 along the lower guide post 5 and / or the sliding of the second wire clamp 14 along the upper guide post 13 drive the elastic bodies to stretch or contract. The elastic bodies are used to straighten and tighten the cable harness 36 by the second wire clamp 14 and the first wire clamp 8.

[0040] Specifically, the elastic bodies can be common elastic elements such as springs and elastic ropes, such as Figure 1 and Figure 2 the shown elastic bodies are the first spring 7 and the second spring 15. As Figure 3 shown, after the second wire clamp 14 and the first wire clamp 8 are clamped at appropriate positions at the upper and lower ends of the cable harness 36, the elastic bodies pull the second wire clamp 14 and the first wire clamp 8 away from each other to straighten and tighten the cable harness 36. The reason for straightening and tightening the cable harness 36 is to ensure that after the position of the push rod 25 is changed subsequently, the push rod 25 can still bend the cable harness 36. For example, after the push rod 25 moves to any position along the length direction of the straightened and tightened cable harness 36 and / or rotates around the straightened and tightened cable harness 36 to any position, the push rod 25 can still bend the cable harness 36, so as to meet the requirements of bending the harness in various directions and complete the harness path test work in the case of truly reproducing the working state of the cable harness 36. The test results can truly reflect the quality of the harness.

[0041] In this embodiment, the mounting plate 17 is rotatably arranged around the straightened and tightened cable harness 36, and a pair of slide bars 19 located on both sides of the straightened and tightened cable harness 36 are arranged on the mounting plate 17, and the slide bars 19 can slide along the length direction of the straightened and tightened cable harness 36 on the mounting plate 17, and a push rod 25 is slidably installed on each slide bar 19, and the mounting plate 17 rotates around the straightened and tightened cable harness 36 to drive the slide bars 19 and the push rods 25 to rotate around the straightened and tightened cable harness 36 as the center, no matter where the push rod 25 moves along the length direction of the straightened and tightened cable harness 36, and no matter where the push rod 25 rotates around the straightened and tightened cable harness 36 as the center, the push rod 25 can still bend the cable harness 36 by movement, thereby meeting the requirement of bending the harness in all directions, and completing the harness path test work while truly reproducing the working state of the cable harness 36, and the test result can truly reflect the quality of the harness.

[0042] Specifically, Figure 1 and Figure 2 As shown, the lower end of the lower guide column 5 is fixedly connected to a base, and a rotating seat 3 is provided on the base for rotating around the straightened and tightened cable harness 36, and the mounting plate 17 is fixedly connected to the rotating seat 3; the base is installed with a driving device 1, and the driving device 1 is transmission-connected to the rotating seat 3 for driving the rotating seat 3 to rotate, and then driving the mounting plate 17 to rotate around the straightened and tightened cable harness 36.

[0043] Typically, the driving device may be an electric motor 10 or a pneumatic motor, a hydraulic motor, or the like.

[0044] Specifically, the base includes a chassis 1 and a fixed platform 4 fixed on the upper surface of the chassis 1, the swivel seat 3 is swivel-sleeved on the fixed platform 4, and a thrust bearing 2 is arranged between the swivel seat 3 and the upper surface of the chassis 1 to facilitate smooth rotation of the swivel seat 3 and reduce rotation resistance. The swivel seat 3 is tightly sleeved with a transmission belt 11, and the driving device drives the swivel seat 3 to rotate through the transmission belt 11.

[0045] Specifically, Figure 1 and Figure 2 As shown, the spring 1 7 is sleeved on the lower guide column 5 , and the lower end of the spring 1 7 is connected to the fixed platform 4 .

[0046] Furthermore, the chassis 1 is fixedly connected to a base 9, the drive device 1 is fixedly installed on the base 9, the base 9 is fixedly connected to a mounting frame 12, the upper guide column 13 is fixedly connected to the mounting frame 12, so that the upper guide column 13 and the lower guide column 5 remain relatively fixed, and the spring 2 15 is connected to the mounting frame 12.

[0047] Further, such as Figure 1 and Figure 2As shown, a lower limit block 6 is fixedly installed at the upper end of the lower guide post 5, and the lower limit block 6 prevents the first wire clamp 8 from slipping off the upper end of the lower guide post 5. Similarly, an upper limit block 16 is fixedly installed at the lower end of the upper guide post 13.

[0048] Specifically, a pair of sliding rods 19 move towards or away from each other along the length direction of the straightened and tensioned cable harness 36. With this design, a pair of push rods 25 can be arranged at intervals along the length direction of the straightened and tensioned cable harness 36. Subsequently, when the pair of push rods 25 move forward, two bending points are simultaneously generated on the cable harness 36, and the bending angles of the two bending points always remain equal in magnitude and opposite in direction. The arrangement of the pair of push rods 25 at intervals along the length direction of the straightened and tensioned cable harness 36 not only facilitates quickly bending the cable harness 36, but also can simultaneously generate two bending points, accelerating the test operation efficiency and shortening the test time. Theoretically, compared with generating only one bending point at a certain moment, the total time consumed for the test operation is shortened by half. The bending angles of the two bending points always remain equal in magnitude and opposite in direction, which is conducive to accurately controlling the test parameter variables and obtaining more accurate test results. For example, it can be obtained that the cable harness 36 can withstand more bending times without affecting the conduction performance at a certain bending angle or within a certain bending angle range, and at the same time, the bending direction is not limited, which is conducive to fully understanding the bending performance of the cable harness 36, so as to better use the cable harness 36.

[0049] Specifically, the movement of a pair of sliding rods 19 towards or away from each other along the length direction of the straightened and tensioned cable harness 36 can be achieved in the following way: As Figure 1 and Figure 2 shown, a pair of sliding rods 19 are connected by a second transmission belt 22. The second transmission belt 22 is wound around a pair of spaced pulleys 23. The pulleys 23 are rotatably connected to the mounting plate 17. A second driving device is provided on the mounting plate 17 and is in transmission connection with the pulley 23. The second driving device drives the pulley 23 to rotate, and drives a pair of sliding rods 19 to move towards or away from each other along the length direction of the straightened and tensioned cable harness 36 through the second transmission belt 22.

[0050] Commonly, the second driving device can be a second motor 24, a pneumatic motor, a hydraulic motor, etc.

[0051] In this embodiment, to ensure the smooth sliding of the sliding rod 19 on the mounting plate 17 and facilitate the installation and arrangement of the second transmission belt 22, the pulley 23, and the sliding rod 19, a long and through sliding hole 18 extending along the length direction of the straightened and tensioned cable harness 36 is provided on the mounting plate 17. The sliding rod 19 passes through the sliding hole 18 and is slidably connected to the sliding hole 18. The push rod 25 is located at one end of the sliding rod 19, and the second transmission belt 22 is located at the other end of the sliding rod 19.

[0052] Furthermore, asFigure 1 and Figure 2 As shown, a slider 20 is integrally provided at the other end of the slide rod 19, and the slider 20 is slidably connected to the slide hole 18. The slide rod 19 is located on one side of the slide hole 18, and a slide plate 21 is provided on the other side of the slide hole 18. The slide plate 21 is detachably fixedly connected to the slider 20. The slider 20 is confined in the slide hole 18 by the slide plate 21 and the slide rod 19, so that it can only move along the length direction of the slide hole 18, thereby ensuring that the slide rod 19 slides smoothly on the mounting plate 17.

[0053] Preferably, Figure 1 and Figure 2 As shown, a slot 26 is provided at one end of the push rod 25. When the push rod 25 moves forward and approaches the straightened and tightened cable harness 36, the cable harness 36 enters the slot 26. The design of the slot 26 facilitates the push rod 25 to stably push the cable harness 36 to bend, and the problem of the cable harness 36 slipping off the push rod 25 during the bending process does not occur.

[0054] In this embodiment, the reciprocating mechanism is connected to the push rod 25 and is used to push the push rod 25 to reciprocate relative to the slide rod 19. Figure 4 As shown, a pair of push rods 25 move forward to approach the straightened and taut cable harness 36 and bend the cable harness 36, as shown in FIG. Figure 3 As shown, the pair of push rods 25 move in the opposite direction away from the cable harness 36 to straighten and tighten the bent cable harness 36.

[0055] Specifically, the reciprocating mechanism includes: a driving device three, an eccentric wheel, and an elastic element. The driving device three is fixedly connected to the mounting plate 17 through the machine base two 31. The eccentric wheel is transmission-connected to the driving device three. The push rod 25 is in contact with the outer circumference of the eccentric wheel. The elastic element is connected to the slide bar 19 and the push rod 25. The driving device three drives the eccentric wheel to rotate and push the push rod 25 to reciprocate relative to the slide bar 19, and drives the elastic element to stretch or contract. The elastic element is used to keep the push rod 25 in contact with the outer circumference of the eccentric wheel. Commonly, the elastic element is an elastic device such as a spring or an elastic rope, such as Figure 1 and Figure 2 The elastic element shown is spring three 28, which is sleeved on the push rod 25. The eccentric wheel rotates to push the push rod 25 to move back and forth relative to the slide rod 19, thereby continuously compressing or stretching the spring. The eccentric wheel and the elastic element cooperate with each other to achieve the reciprocating movement of the push rod 25 relative to the slide rod 19 through the rotation of the eccentric wheel.

[0056] Further, such as Figure 1 and Figure 2As shown, the push rod 25 is fixedly connected with a push plate 27. When the slide rod 19 drives the push rod 25 to move along the length direction of the straightened and tightened cable harness 36, the push plate 27 keeps in contact with the outer circumferential surface of the eccentric wheel. This design can prevent the push rod 25 from being pushed by the eccentric wheel when the slide rod 19 drives the push rod 25 to move along the length direction of the straightened and tightened cable harness 36, thereby ensuring that the bending work of the cable harness 36 proceeds smoothly.

[0057] Preferably, the push rod 25 reciprocates along its own axis.

[0058] Preferably, the pair of push rods 25 can be driven by a driving device to achieve reciprocating movement, such as Figure 1 and Figure 2 As shown, eccentric wheel 1 29 is directly connected to driving device 3, eccentric wheel 2 34 is installed on the transmission shaft 33, the transmission shaft 33 is rotatably installed on the shaft seat 35, the shaft seat 35 is fixedly connected to the mounting plate 17, and the driving device 3 is connected to the transmission shaft 33 through the transmission belt 32.

[0059] Typically, the driving device 3 may be a motor 30 or a pneumatic motor, a hydraulic motor, or the like.

[0060] During detection, if Figure 3 As shown, the cable harness 36 to be tested is first clamped and fixed and straightened and tightened, and then the cable harness 36 is connected to the detection circuit. At this time, the cable harness 36 is in a pass state, and then the driving device 3 is started to drive a pair of eccentric wheels to rotate and push a pair of push rods 25 to move forward to approach the straightened and tightened cable harness 36 and bend the cable harness 36, as shown in FIG. Figure 4 As shown, after the pair of push rods 25 move in the opposite direction and separate from the cable harness 36, and the bent cable harness 36 is straightened and tightened, the driving device 2 is started to drive the pair of push rods 25 to move up and down from Figure 4 Move the displayed position to Figure 5At the position shown, then repeat the above operation. Start the third driving device to drive a pair of eccentric wheels to rotate, push a pair of push rods 25 to move forward to approach the straightened and tightened cable harness 36 and bend the cable harness 36, and a pair of push rods 25 move backward to separate from the cable harness 36, and the bent cable harness 36 resumes being straightened and tightened. The above two bending actions are to bend the cable harness 36 in two opposite directions at a certain place. Then start the first driving device to drive the mounting plate 17 to rotate by an angle to change the bending orientation of the cable harness 36, and then repeat the above actions to bend the cable harness 36. In this way, the requirements for bending the harness in all directions are met, and the harness path test work is completed while truly reproducing the working state of the cable harness 36. The test results can truly reflect the quality of the harness. As for the specific value of the angle, it can be set according to the actual situation. During the bending process of the cable harness 36, the conduction status of the cable harness 36 is detected in real time. If the cable harness 36 is always in a conducting state during all bending tests, then the cable harness 36 passes the test. On the contrary, if a break is detected in the cable harness 36 during a certain bending test, then the cable harness 36 fails the test.

[0061] Of course, in other embodiments, after a pair of push rods 25 move forward to approach the straightened and tightened cable harness 36 and bend the cable harness 36, and a pair of push rods 25 move backward to separate from the cable harness 36 and the bent cable harness 36 resumes being straightened and tightened, the first driving device can be started first to drive the mounting plate 17 to rotate by an angle to change the bending orientation of the cable harness 36, and then repeat the above actions to bend the cable harness 36. After all the bending orientations of the forward bending of the cable harness 36 are completed, then start the second driving device to drive a pair of push rods 25 to move up and down from Figure 4 the position shown to Figure 5 the position shown, and then repeat the above operation to perform all the bending orientation tests of the reverse bending of the cable harness 36.

[0062] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the description and drawings of the present invention under the inventive concept of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A cable harness detection device for new energy vehicles, characterized in that, Comprising: A lower guide post, on which a first wire clamp is axially slidably mounted; An upper guide post, located above the lower guide post and relatively fixed to the lower guide post. A second wire clamp is axially slidably mounted on the upper guide post. The second wire clamp and the first wire clamp are used to respectively clamp and fix the upper and lower ends of a cable harness; A plurality of elastic bodies, arranged beside the lower guide post and / or the upper guide post and connected to the first wire clamp and / or the second wire clamp. The sliding of the first wire clamp along the lower guide post and / or the sliding of the second wire clamp along the upper guide post drive the elastic bodies to stretch or contract. The elastic bodies are used to straighten and tighten the cable harness by the second wire clamp and the first wire clamp; A mounting plate, arranged to rotate around the straightened and tightened cable harness. A pair of sliding rods located on both sides of the straightened and tightened cable harness are provided on the mounting plate. The sliding rods can slide along the length direction of the straightened and tightened cable harness on the mounting plate. A push rod is slidably mounted on each sliding rod. The rotation of the mounting plate around the straightened and tightened cable harness drives the sliding rods and the push rods to rotate around the straightened and tightened cable harness as the center; A reciprocating movement mechanism, connected to the push rods, for pushing the push rods to reciprocate relative to the sliding rods. When a pair of push rods move forward, they approach the straightened and tightened cable harness and bend the cable harness. When a pair of push rods move backward, they move away from the cable harness to restore the bent cable harness to be straightened and tightened; The lower end of the lower guide post is fixedly connected to a base. A rotary seat that rotates around the straightened and tightened cable harness is provided on the base. The mounting plate is fixedly connected to the rotary seat; A pair of push rods are arranged at intervals along the length direction of the straightened and tightened cable harness; When a pair of push rods move forward, two bending points are simultaneously generated on the cable harness, and the bending angles of the two bending points always remain equal in magnitude and opposite in direction.

2. The cable harness detection device for a new energy vehicle according to claim 1, characterized in that The base is equipped with a first driving device, which is in transmission connection with the rotary seat and is used to drive the rotary seat to rotate.

3. The cable harness detection device for a new energy vehicle according to claim 2, wherein The base is fixedly connected to a mounting frame, and the upper guide post is fixedly connected to the mounting frame; The elastic body is a spring, and the spring is connected to the mounting frame or the base.

4. A cable harness detection device for a new energy vehicle according to claim 1, characterized in that, A pair of sliding rods are connected by a second transmission belt. The second transmission belt is wound around a pair of spaced pulleys. The pulleys are rotatably connected to the mounting plate. A second driving device in transmission connection with the pulleys is provided on the mounting plate. The second driving device drives the pulleys to rotate, and drives a pair of sliding rods to move towards or away from each other along the length direction of the straightened and tightened cable harness through the second transmission belt.

5. The cable harness detection device for a new energy vehicle according to claim 4, characterized in that, A long and through sliding hole extending along the length direction of the straightened and tightened cable harness is provided on the mounting plate. The sliding rod penetrates through the sliding hole and is slidably connected to the sliding hole; The push rod is located at one end of the sliding rod, and the second transmission belt is located at the other end of the sliding rod.

6. The cable harness detection device for a new energy vehicle according to claim 1, characterized in that, A clamping groove is provided at one end of the push rod. When the push rod moves forward and approaches the straightened and tightened cable harness, the cable harness enters the clamping groove.

7. The cable harness detection device for a new energy vehicle according to claim 1, characterized in that, The reciprocating movement mechanism includes: A third driving device, fixedly connected to the mounting plate; An eccentric wheel, in transmission connection with the third driving device. The push rod abuts against the outer circumferential surface of the eccentric wheel; An elastic element, connected to the sliding rod and the push rod. The third driving device drives the eccentric wheel to rotate to push the push rod to reciprocate relative to the sliding rod, and drives the elastic element to stretch or contract. The elastic element is used to keep the push rod in contact with the outer circumferential surface of the eccentric wheel.

8. The cable harness detection device for a new energy vehicle according to claim 7, characterized in that, The push rod is fixedly connected with a push plate, and during the process that the slide rod drives the push rod to move along the length direction of the straightened and tensioned cable harness, the push plate keeps contacting with the outer circumferential surface of the eccentric wheel.

9. The cable harness detection device for a new energy vehicle according to claim 1, characterized in that, The push rod reciprocates along its own axis direction.

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