Cable harness detection device for new energy automobile

Abstract

The invention discloses a cable harness detection device for a new energy automobile, and belongs to the technical field of harness detection, and the cable harness detection device comprises a lower guide column which is axially provided with a first cable clamp in a sliding manner; the upper guide column is located above the lower guide column, the upper guide column and the lower guide column are relatively fixed, a second wire clamp is installed on the upper guide column in an axial sliding mode, and the second wire clamp and the first wire clamp are used for clamping and fixing the upper end and the lower end of the cable harness respectively; and the elastic bodies are arranged beside the lower guide pillar and / or the upper guide pillar. The wire harness bending device has the beneficial effects that according to the technical scheme, the vertical wire harness is clamped, fixed, straightened and tightened through the first wire clamp and the second wire clamp, then the pair of push rods move oppositely to bend the wire harness, and the bending direction of the wire harness is changed by changing the relative position of the pair of push rods and enabling the pair of push rods to rotate around the wire harness; the requirement that the wire harness is bent towards all directions is met, the wire harness access test work is completed under the condition that the working state of the cable wire harness is truly represented, and the test result can truly reflect the quality of the wire harness.

Description

Technical Field

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

[0002] The automotive wiring harness is the network body of the automotive circuit. Without the wiring harness, there would be no automotive circuit. Especially as new energy vehicles are developing towards intelligence, there are more and more wiring harnesses on the car body and the arrangement is complex. The large number of complex wiring harnesses has an increasingly greater impact on the safety of automobile driving. Any wiring harness, especially the wiring harness of important system components such as the steering control system, car system, intelligent assisted driving system, and braking system, will pose a serious threat to the safety of the car once there is a problem. Therefore, new energy vehicles have higher requirements for the safety and stability of wiring harnesses than traditional fuel vehicles, so the quality inspection requirements for wiring harnesses are also improved simultaneously.

[0003] However, the current cable harness path detection device cannot complete the harness path test work under the condition of truly reproducing the working state of the cable harness. For example, the harness path detection device recorded in the patent with the publication number CN119757924A is driven by the first motor to drive the rotating frame and the wire tube to rotate around the axis perpendicular to the plane on a certain plane. The wire harness runs through the wire tube, so the wire harness also rotates only on a certain plane around the axis perpendicular to the plane. Further, if the first motor cannot frequently rotate forward and reverse, the wire harness can only bend in one direction. In fact, the wire harness will bend randomly in various directions, especially the wire harness near the automobile suspension system. The suspension system will move up and down continuously during driving, causing the nearby wire harness to bend frequently, and the bending direction depends on the road conditions. Because the suspension system moves in multiple directions under complex road conditions, the wire harness will be subjected to multi-directional stress, resulting in uncertainty in its bending direction. Therefore, the wire harness only bends in one or two directions for path performance testing and cannot truly reflect the quality of the wire harness.

[0004] In addition, although stepper motors and servo motors can be frequently commutated by matching them with controllers and drivers, if the commutation frequency is very high, such as once per second, the heating of the motor and driver, the wear of mechanical parts, and the vibration and noise caused by the inertial impact of commutation will be very prominent. Obviously, the bending test action of the wire harness near the suspension system belongs to the situation where the commutation frequency is very high. Summary of the invention

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

[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; 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; 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; 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.

[0007] 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; 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.

[0008] In one embodiment, the base is fixedly connected to a mounting frame, and the upper guide column 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.

[0009] 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.

[0010] In one embodiment, the mounting plate is provided with a long through-sliding hole extending along the length direction of the straightened and tightened cable harness, and the sliding rod passes through the sliding hole and is slidably connected to the sliding hole; The push rod is located at one end of the slide rod, and the transmission belt 2 is located at the other end of the slide rod.

[0011] In one embodiment, a slot is provided at one end of the push rod, and when the push rod moves forward and approaches the straightened and tightened cable harness, the cable harness enters the slot.

[0012] In one embodiment, the reciprocating mechanism includes: a driving device three, which is fixedly connected to the mounting plate; an eccentric wheel, which is transmission-connected to the driving device three, and the push rod is in contact with the outer circumferential surface of the eccentric wheel; an elastic element, which is connected to the sliding rod and the push rod. The driving device three 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.

[0013] In one embodiment, the push rod is fixedly connected to a push plate, and when the slide rod drives the push rod to move along the length direction of the straightened and tightened cable harness, the push plate maintains contact with the outer circumferential surface of the eccentric wheel.

[0014] In one embodiment, a pair of push rods are arranged at intervals along the length direction of the straightened and tightened cable harness; A pair of push rods move forward to simultaneously generate two bends on the cable harness, and the bending angles of the two bends always remain equal in magnitude and opposite in direction.

[0015] In one embodiment, the push rod reciprocates along its own axis.

[0016] Beneficial effect: The technical solution of the present application clamps and fixes the vertical wire harness and straightens and tightens it by wire clamp one and wire clamp two, and then a pair of push rods move toward each other to bend the wire harness. The bending direction of the wire harness is changed by changing the relative positions of a pair of push rods and rotating a pair of push rods around the wire harness, thereby meeting the requirements of bending the wire harness in various directions. The wire harness path test is completed while truly reproducing the working state of the cable harness, and the test results can truly reflect the quality of the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a cable harness detection device for new energy vehicles of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a cable harness detection device for new energy vehicles of the present invention. Figure 2 ; Figure 3 It is a schematic diagram of the structure when the cable harness is straightened and tightened; Figure 4 This is a schematic diagram of the structure when the cable harness is bent. Figure 1 ; Figure 5 This is a schematic diagram of the structure when the cable harness is bent. Figure 2 .

[0019] The following are the descriptions of the reference numerals: 1. Chassis; 2. Thrust bearing; 3. Slewing seat; 4. Fixed table; 5. Lower guide column; 6. Lower limit block; 7. Spring 1; 8. Wire clamp 1; 9. Machine base 1; 10. Motor 1; 11. Transmission belt 1; 12. Mounting frame; 13. Upper guide column; 14. Wire clamp 2; 15. Spring 2; 16. Upper limit block; 17. Mounting plate; 18. Slide hole; 19. Slide rod; 20. Slider; 21. Slide plate; 22. Transmission belt 2; 23. Pulley; 24. Motor 2; 25. Push rod; 26. Slot; 27. Push plate; 28. Spring 3; 29. ​​Eccentric wheel 1; 30. Motor 3; 31. Machine base 2; 32. Transmission belt 3; 33. Transmission shaft; 34. Eccentric wheel 2; 35. Shaft seat; 36. Cable harness. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] The present invention proposes a cable harness detection device for new energy vehicles. The cable harness detection device for new energy vehicles clamps and fixes a vertical harness and straightens and tightens it through a wire clamp 1 8 and a wire clamp 2 14, and then a pair of push rods 25 move toward each other to bend the harness. The bending direction of the harness is changed by changing the relative positions of the pair of push rods 25 and rotating the pair of push rods 25 around the harness, thereby meeting the requirement of bending the harness in various directions. The harness path test is completed under the condition of truly reproducing the working state of the cable harness 36, and the test result can truly reflect the quality of the harness.

[0025] Specifically, in one embodiment of the invention, Figure 1 and Figure 2 As shown, the cable harness detection device for new energy vehicles includes: a lower guide column 5, an upper guide column 13, a plurality of elastic bodies, a mounting plate 17 and a reciprocating mechanism. A wire clamp 8 is axially slidably mounted on the lower guide column 5. Preferably, the lower guide column 5 is vertically arranged so as to quickly straighten and tighten the cable harness 36.

[0026] In this embodiment, if Figure 1 and Figure 2 As 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 the upper guide post 13 is fixed relative to the lower guide post 5 with the lower guide post 5 as a reference, 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.

[0027] In this embodiment, a plurality of elastomers are arranged beside the lower guide column 5 and / or the upper guide column 13, and are connected to the wire clamp 1 8 and / or the wire clamp 2 14. The wire clamp 1 8 slides along the lower guide column 5 and / or the wire clamp 2 14 slides along the upper guide column 13 to drive the elastomer to stretch or contract. The elastomer is used to enable the wire clamp 2 14 and the wire clamp 1 8 to straighten and tighten the cable harness 36.

[0028] Specifically, the elastic body can be a common elastic element such as a spring, an elastic rope, etc. Figure 1 and Figure 2 The elastic bodies shown are spring 1 7 and spring 2 15. Figure 3 As shown, after the wire clamp 2 14 and the wire clamp 1 8 are clamped at appropriate positions at the upper and lower ends of the cable harness 36, the elastic body pulls the wire clamp 2 14 and the wire clamp 1 8 away from each other to straighten and tighten the cable harness 36. The reason why the cable harness 36 needs to be straightened and tightened is to ensure that after the position of the push rod 25 is subsequently changed, 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 to any position with the straightened and tightened cable harness 36 as the center, the push rod 25 can still bend the cable harness 36 when it moves, thereby meeting the need for the harness to bend in all directions, and completing the harness path test work while truly reproducing the working state of the cable harness 36. The test result can truly reflect the quality of the harness.

[0029] 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.

[0030] Specifically, Figure 1 and Figure 2As 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.

[0031] Typically, the driving device may be an electric motor 10 or a pneumatic motor, a hydraulic motor, or the like.

[0032] 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.

[0033] 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 .

[0034] 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.

[0035] Further, such as Figure 1 and Figure 2 As shown, a lower limit block 6 is fixedly installed on the upper end of the lower guide column 5, and the lower limit block 6 prevents the wire clamp 8 from slipping off from the upper end of the lower guide column 5. Similarly, an upper limit block 16 is fixedly installed on the lower end of the upper guide column 13.

[0036] Specifically, a pair of slide bars 19 move toward or away from each other along the length direction of the straightened and tightened cable harness 36. This design enables a pair of push rods 25 to be spaced apart along the length direction of the straightened and tightened cable harness 36, and then a pair of push rods 25 move forward to simultaneously generate two bends on the cable harness 36, and the bending angles of the two bends are always kept equal in size and opposite in direction. A pair of push rods 25 are spaced apart along the length direction of the straightened and tightened cable harness 36, which not only facilitates the quick bending of the cable harness 36, but also can generate two bends at the same time, thereby speeding up the test operation efficiency. , shorten the test time. In theory, the total test time is halved when two bends are generated at the same time compared to when only one bend is generated at a certain moment. The bending angles of the two bends are always kept equal in size and opposite in direction, which is conducive to the precise control of the test parameter variables and the acquisition of more accurate test results. For example, when the cable harness 36 is at a certain bending angle or within a certain bending angle range, the cable harness 36 can withstand more bending times without affecting the conduction performance. 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.

[0037] Specifically, the pair of slide bars 19 can move toward or away from each other along the length direction of the straightened and tightened cable harness 36 in the following manner: Figure 1 and Figure 2 As shown, a pair of slide bars 19 are connected by a transmission belt 22, and the transmission belt 22 is wound on a pair of spaced pulleys 23, and the pulleys 23 are rotationally connected to the mounting plate 17. The mounting plate 17 is provided with a driving device 2 that is transmission-connected to the pulley 23. The driving device 2 drives the pulley 23 to rotate, and drives the pair of slide bars 19 to move toward or away from each other along the length direction of the straightened and tightened cable harness 36 through the transmission belt 22.

[0038] Typically, the second driving device may be a second motor 24 or a pneumatic motor, a hydraulic motor, or the like.

[0039] In this embodiment, in order to ensure that the slide bar 19 slides smoothly on the mounting plate 17 and facilitate the installation and arrangement of the transmission belt 22, the pulley 23, and the slide bar 19, the mounting plate 17 is provided with a long through slide hole 18 extending along the length direction of the straightened and tightened cable harness 36. The slide bar 19 passes through the slide hole 18 and is slidably connected to the slide hole 18. The push rod 25 is located at one end of the slide bar 19, and the transmission belt 22 is located at the other end of the slide bar 19.

[0040] Further, such as Figure 1 and Figure 2As 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] Preferably, the push rod 25 reciprocates along its own axis.

[0046] 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.

[0047] Typically, the driving device 3 may be a motor 30 or a pneumatic motor, a hydraulic motor, or the like.

[0048] 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 5The above two-step bending action is to bend a certain point on the cable harness 36 in both positive and negative directions, and then start the driving device 1 to drive the mounting plate 17 to rotate an angle, change the bending direction of the cable harness 36, and then repeat the above-mentioned action to bend the cable harness 36. In this way, the demand for bending the harness in all directions is met, and the harness path test work is completed under the condition of truly reproducing the working state of the cable harness 36. The test result can truly reflect the quality of the harness, and the specific value of the angle can be set according to the actual situation. During the bending process of the cable harness 36, the conductivity of the cable harness 36 is detected in real time. If the cable harness 36 is always in a conductive state during the entire bending test, the cable harness 36 passes the test. Conversely, if a break in the cable harness 36 is detected during a certain bending test, the cable harness 36 fails the test.

[0049] Of course, in other embodiments, after the pair of push rods 25 move forward to approach the straightened and tightened cable harness 36 and bend the cable harness 36, the pair of push rods 25 move backward to separate from the cable harness 36, and the bent cable harness 36 is restored to be straightened and tightened, the drive device 1 is first started to drive the mounting plate 17 to rotate an angle to change the bending direction of the cable harness 36, and then the above-mentioned action is repeated to bend the cable harness 36. After all the bending directions of the cable harness 36 that are bent forward are tested, the drive device 2 is started again to drive the pair of push rods 25 to move up and down from Figure 4 Move the displayed position to Figure 5 The position is shown, and then the aforementioned operation is repeated to perform all bending orientation test operations to make the cable harness 36 bend in the reverse direction.

[0050] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cable harness detection device for new energy vehicles, characterized in that: include: A lower guide post, on which a wire clamp is axially slidably mounted; An upper guide post is located above the lower guide post and is 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 clamp and fix the upper and lower ends of the cable harness respectively. 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; 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; 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.

2. A cable harness detection device for new energy vehicles as claimed in claim 1, characterized in that: The lower end of the lower guide column is fixedly connected with a base, and a swivel seat for rotating around the straightened and tightened cable harness is arranged on the base, and the mounting plate is fixedly connected with the swivel seat; 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.

3. A cable harness detection device for new energy vehicles as claimed in claim 2, characterized in that: The base is fixedly connected to a mounting frame, and the upper guide column 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 new energy vehicles as claimed in claim 1, characterized in that: A pair of slide bars are connected by a second transmission belt, and the second transmission belt is wound on a pair of pulleys arranged at intervals. The pulley is rotationally connected to a mounting plate, and a second driving device connected to the pulley is provided on the mounting plate. The second driving device drives the pulley to rotate, and drives a pair of slide bars to move toward or away from each other along the length direction of the straightened and tightened cable harness through the second transmission belt.

5. A cable harness detection device for new energy vehicles as claimed in claim 4, characterized in that: The mounting plate is provided with a long through-sliding hole extending along the length direction of the straightened and tightened cable harness, and the sliding rod passes through the sliding hole and is slidably connected to the sliding hole; The push rod is located at one end of the slide rod, and the transmission belt 2 is located at the other end of the slide rod.

6. A cable harness detection device for new energy vehicles as claimed in claim 1, characterized in that: A clamping slot is arranged at one end of the push rod, and when the push rod moves forward and approaches the straightened and tightened cable harness, the cable harness enters the clamping slot.

7. A cable harness detection device for new energy vehicles as claimed in claim 1, characterized in that: The reciprocating mechanism comprises: A driving device three is fixedly connected to the mounting plate; The eccentric wheel is in transmission connection with the driving device, and the push rod is in contact with the outer circumferential surface of the eccentric wheel; The elastic element is connected to the slide rod and the push rod. The driving device drives the eccentric wheel to rotate and push the push rod to move back and forth relative to the slide 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. A cable harness detection device for new energy vehicles as claimed in claim 7, characterized in that: The push rod is fixedly connected with a push plate. When the slide rod drives the push rod to move along the length direction of the straightened and tightened cable harness, the push plate keeps in contact with the outer circumferential surface of the eccentric wheel.

9. A cable harness detection device for new energy vehicles as claimed in claim 1, characterized in that: A pair of push rods are arranged at intervals along the length direction of the straightened and tightened cable harness; A pair of push rods move forward to simultaneously generate two bends on the cable harness, and the bending angles of the two bends always remain equal in magnitude and opposite in direction.

10. A cable harness detection device for new energy vehicles as claimed in claim 1, characterized in that: The push rod reciprocates along its own axis direction.

Images