Wire harness stretching test device and method

Abstract

The invention discloses a wire harness stretching testing device and method.The wire harness stretching testing device comprises a first stretching mechanism and a second stretching mechanism, and the first stretching mechanism comprises a first clamping assembly, a second clamping assembly and a first stretching driving assembly; the first stretching driving assembly is used for driving the first clamping assembly and the second clamping assembly to get close to each other and get away from each other in the transverse direction. The first clamping assembly and the second clamping assembly each comprise a wire clamping module and a terminal clamping module. The second stretching mechanism comprises a jacking seat, a moving driving assembly and a second stretching driving piece, the jacking seat is located between the first clamping assembly and the second clamping assembly, and the moving driving assembly is used for driving the jacking seat to move in the longitudinal direction; the second stretching driving piece is used for driving the jacking base to move in the axial direction of the symmetry axis between the first clamping assembly and the second clamping assembly. According to the invention, the connection performance between the wiring terminal and the wires, the tensile performance of all the wires and the tensile performance of each wire can be tested.

Description

Technical Field

[0001] The present invention relates to the technical field of wire harness stretching test, and in particular to a wire harness stretching test device and method. Background Art

[0002] The wiring harness is a wiring component that connects various electrical devices in the electrical field, and transmits electrical signals between power supplies, switches, electrical appliances and electronic devices. Existing wiring harnesses are generally composed of multiple wires and two terminals connected to two sections of multiple wires. Existing wiring harnesses are subjected to stretching tests after production. Existing wiring harness stretching test devices can only test the overall tensile performance of the wiring harness, that is, the tensile performance of multiple wires is tested as a whole. During production, the wire models and materials in the wiring harness will be different according to different signal transmissions. The overall stretching will not be able to test the tensile performance of each wire, and the existing wiring harness stretching test device cannot test the connection performance between the wire and the terminal, and the function is single. Summary of the invention The object of the present invention is to provide a wire harness tension testing device and method to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0003] The technical solutions adopted to solve the above technical problems are: The present invention provides a wire harness tensile testing device, comprising: The first stretching mechanism comprises a first clamping assembly, a second clamping assembly, and a first stretching driving assembly, wherein the first clamping assembly and the second clamping assembly are symmetrically arranged at intervals in a transverse direction, and the first stretching driving assembly is used to drive the first clamping assembly and the second clamping assembly to move closer to and farther from each other in the transverse direction, and the first clamping assembly and the second clamping assembly respectively comprise a wire clamping module and a terminal clamping module arranged in the transverse direction, and the two terminal clamping modules are respectively located on the side away from each other of the two wire clamping modules; The second stretching mechanism includes a lifting seat, a mobile driving assembly and a second stretching driving member, the lifting seat is located between the first clamping assembly and the second clamping assembly, the mobile driving assembly is used to drive the lifting seat to move along the longitudinal direction, and the second stretching driving member is used to drive the lifting seat to move along the symmetrical axis between the first clamping assembly and the second clamping assembly, and the symmetrical axis, the transverse direction and the longitudinal direction are arranged perpendicular to each other.

[0004] The wire harness tensile testing device of the present invention has the following beneficial effects: When in use, the terminal clamping modules on both sides are used to clamp and fix the wiring terminals at both ends of the wiring harness, and then the first clamping assembly and the second clamping assembly are driven to move away from each other by the first stretching drive assembly to achieve a test of the connection performance between the wiring terminals and the wires; while the wiring terminals at both ends of the wiring harness are clamped and fixed, the outer periphery of the wires can also be abutted against the jacking seat, and the wires can be stretched by the jacking seat when the second stretching drive member drives the jacking seat to move upward, and the jacking seat is driven to move in the front and rear directions by the moving drive assembly, so that the jacking seat can correspond to each wire, so as to achieve a test of the connection performance between each wire and the wiring terminals; the ends of all the wires in the wiring harness are clamped and fixed by the wire clamping modules on both sides, and then The first stretching drive component drives the first clamping component and the second clamping component to move away from each other to achieve a test on the tensile performance of all the wires; when both ends of all the wires in the wiring harness are clamped and fixed, the lifting seat can also be used to abut against the outer periphery of the wire, and the lifting seat is driven by the second stretching drive to move symmetrically axially between the first clamping component and the second clamping component, and the wire is stretched by the lifting seat, and the lifting seat is driven to move longitudinally by the moving drive component, so that the lifting seat corresponds to each wire to achieve a test on the tensile performance of each wire; the wire harness stretching test device of the present invention can test the connection performance between the terminal and the wire, the tensile performance of all the wires, and the tensile performance of each wire, and has multiple testing functions.

[0005] As a further improvement of the above technical solution, the first clamping assembly and the second clamping assembly respectively further include a terminal socket and a third stretching drive assembly, the terminal socket is located on the side of the terminal clamping module facing away from the wire clamping module, and the third stretching drive assembly is used to drive the terminal socket and the terminal clamping module to move closer to and away from each other in the lateral direction.

[0006] As a further improvement of the above technical solution, the first clamping assembly and the second clamping assembly respectively further include a rotating seat, a movable seat and a locking structure, the rotating seat is rotatably installed on the movable seat, the rotating axis of the rotating seat extends along the longitudinal direction, the locking structure is used to lock the rotation angle of the rotating seat, and the terminal socket, the terminal clamping module and the wire clamping module are arranged in a straight line along the same diameter direction of the rotating seat.

[0007] As a further improvement of the above technical solution, the first stretching mechanism also includes a base, and the two movable seats are installed on the base along the horizontal sliding direction. The first stretching drive assembly includes two first stretching drive members, and the two first stretching drive members are respectively connected to the two movable seats in transmission.

[0008] As a further improvement of the above technical solution, the second stretching mechanism also includes a slide seat installed on the base along the longitudinal sliding direction, the mobile drive assembly is transmission connected to the slide seat, the second stretching drive member is installed on the slide seat, and the top of the second stretching drive member is provided with a driving lifting end transmission connected to the lifting seat.

[0009] As a further improvement of the above technical solution, the wire clamping module includes two wire clamping blocks and two wire clamping driving members, the two wire clamping blocks are arranged relatively spaced along the symmetrical axis, and the two wire clamping driving members are respectively connected to the two wire clamping blocks in a transmission manner; The terminal clamping module comprises two terminal clamping blocks and two terminal clamping driving members, the two terminal clamping blocks are arranged at a relative interval along the symmetrical axis, and the two terminal clamping driving members are respectively connected to the two terminal clamping blocks in a transmission manner; The terminal socket is located at one side between the two terminal clamping blocks, and the third stretching drive assembly includes a third stretching drive member drivingly connected to the terminal socket.

[0010] As a further improvement of the above technical solution, a plurality of clamping grooves extending along the transverse direction are respectively provided on the opposite sides of the two wire clamping blocks, and the plurality of clamping grooves are arranged in an arranged manner along the longitudinal direction.

[0011] As a further improvement of the above technical solution, a wire groove is provided on the top side of the lifting seat, and the wire groove is arranged in an arc shape on the longitudinal projection surface.

[0012] The present invention also provides a wire harness stretching test method, which is applicable to the wire harness stretching test device. The wire harness stretching test method includes: When it is necessary to test the connection performance between the wiring terminals and the wires in the wiring harness, the two wiring terminals are clamped on the terminal clamping modules on both sides, respectively, the first clamping assembly and the second clamping assembly are driven to move away from each other in the lateral direction, and the tensile force acting between the first clamping assembly and the second clamping assembly is monitored; When the tensile properties of all the wires in the wiring harness need to be tested, both ends of all the wires are clamped on the wire clamping modules on both sides, the first clamping assembly and the second clamping assembly are driven to move away from each other in the lateral direction, and the tensile force acting between the first clamping assembly and the second clamping assembly is monitored; When the tensile performance of each wire in the wiring harness needs to be tested, the two ends of all the wires are clamped on the wire clamping modules on both sides respectively, the lifting seat is driven to move along the longitudinal direction to the position corresponding to the set wire, the lifting seat is driven to move along the symmetrical axis, the lifting seat is abutted against the outer periphery of the wire, and the wire is pushed, the tensile force acting on the lifting seat is monitored, and then the lifting seat is driven to reset, the lifting seat is driven to move to the position corresponding to other wires, and the lifting seat is driven to perform a tensile test on the wire; When it is necessary to test the connection performance between the terminal blocks in the wiring harness and each wire, the two terminal blocks are clamped on the terminal clamping modules on both sides respectively, and the lifting seat is driven to move longitudinally to a position corresponding to the set wire, and the lifting seat is driven to move symmetrically along the axial direction. The lifting seat abuts against the outer periphery of the wire and pushes the wire, and the tensile force acting on the lifting seat is monitored. Then, the lifting seat is driven to reset, and the lifting seat is driven to move to a position corresponding to other wires, and the lifting seat is driven to perform a tensile test on the wire.

[0013] As a further improvement of the above technical solution, the wire harness stretching test method further includes: When the plug-in performance of the wiring terminals in the wiring harness needs to be tested, two wiring terminals are respectively plugged into the two terminal sockets, and the two wiring terminals are respectively clamped on the terminal clamping modules on both sides, driving the terminal sockets and the terminal clamping modules to move away from each other in the lateral direction, and monitoring the tensile force acting between the terminal sockets and the terminal clamping modules; When testing the connection performance between the wiring terminals and the wires in the wiring harness, the tensile performance of all the wires, the tensile performance of each wire, and the plug-in performance of the wiring terminals, the signal generator receiver is respectively connected to the terminal sockets on both sides, and the two wiring terminals are respectively plugged into the two terminal sockets. The detection signal is transmitted to the wiring harness through the signal generator receiver, and the received signal information of the signal generator receiver is monitored to determine whether the wiring harness transmits the signal normally.

[0014] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments; Figure 1 This is a front view of an embodiment of the wire harness tensile testing device provided by the present invention; Figure 2 This is a partial schematic diagram on the left of an embodiment of the wire harness tensile testing device provided by the present invention; Figure 3 yes Figure 1 Sectional view of section AA; Figure 4 This is a schematic diagram of a wire harness stretching test device provided by the present invention, in which one embodiment tests the connection performance between a wiring terminal and all wires; Figure 5 This is a schematic diagram of a wire harness stretching test device provided by the present invention, in which one embodiment tests the connection performance between each wire and a wiring terminal; Figure 6 This is a schematic diagram of a wire harness tensile testing device provided by the present invention, in which one embodiment tests the tensile properties of all wires; Figure 7 This is a schematic diagram of a wire harness tensile testing device provided by the present invention, in which one embodiment tests the tensile performance of each wire; Figure 8 This is a schematic diagram of a wire harness tensile testing device provided by the present invention, in which one embodiment tests the plug-in performance of a wiring terminal in a wire harness; Fig. 9 This is a side view of two wire clamps clamped together in one embodiment of the wire harness tensile testing device provided by the present invention; Figure Number: First clamping assembly 100; wire clamping module 110; wire clamping block 111; clamping groove 1111; wire clamping drive 112; terminal clamping module 120; terminal clamping block 121; terminal clamping drive 122; rotating seat 130; moving seat 140; locking structure 150; locking bolt 151; locking port 152; base 160; guide rail 161; slide rail 162; first stretching drive 170; A second clamping assembly 200; Lifting seat 300; cable trough 310; A second stretching driving member 400; Terminal socket 500; third tension driving member 510; Slide 600; Wiring harness 700; terminal block 710; wire 720; The mobile drive assembly 800 . DETAILED DESCRIPTION

[0016] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0019] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments.

[0021] The existing wire harness stretching test device can only test the overall stretching performance of the wire harness 700, that is, to test the stretching performance of multiple wires 720 as a whole. During production, according to different signal transmissions, the models and materials of the wires 720 in the wire harness 700 will be different. The overall stretching will not be able to test the stretching performance of each wire 720, and the existing wire harness stretching test device is also unable to test the connection performance between the wire 720 and the terminal 710, and the plug-in performance of the terminal 710. When performing a stretch test on the wire harness 700, it is also difficult to test whether the internal structure of the wire harness 700 is normal. For the stretching test, it can only be identified through external observation. Therefore, the present invention proposes a wire harness stretching test device to solve the above technical problems.

[0022] like Figure 1 As shown, the wire harness tensile testing device of the present invention includes a first tensile mechanism and a second tensile mechanism.

[0023] like Figure 1As shown, the first stretching mechanism of the present invention includes a first clamping assembly 100, a second clamping assembly 200, and a first stretching driving assembly. The first clamping assembly 100 and the second clamping assembly 200 are symmetrically arranged at intervals in the transverse direction. Specifically, the first clamping assembly 100 and the second clamping assembly 200 in this embodiment are symmetrically arranged in the left and right directions. In some other embodiments, the first clamping assembly 100 and the second clamping assembly 200 may be symmetrically arranged in the upper and lower directions or symmetrically arranged in the front and back directions. This embodiment takes the first clamping assembly 100 and the second clamping assembly 200 as an example of being symmetrically arranged in the left and right directions.

[0024] The first clamping assembly 100 and the second clamping assembly 200 of the present embodiment are identical in structure, and the first clamping assembly 100 and the second clamping assembly 200 respectively include a wire clamping module 110 and a terminal clamping module 120 arranged in a left-right direction, wherein the two wire clamping modules 110 are arranged opposite to each other left-right, and the two terminal clamping modules 120 are respectively located on the side away from each other of the two wire clamping modules 110, the wire clamping module 110 is used to clamp and fix all the wires 720 of the wiring harness 700, and the terminal clamping module 120 is used to clamp and fix the connection terminals 710 of the wiring harness 700.

[0025] The first stretching driving assembly is used to drive the first clamping assembly 100 and the second clamping assembly 200 to move closer to and away from each other in the left-right direction.

[0026] like Figure 1 and Figure 3 As shown, the second stretching mechanism of this embodiment includes a lifting seat 300, a moving drive assembly 800 and a second stretching drive member 400. The lifting seat 300 is located between the first clamping assembly 100 and the second clamping assembly 200. Preferably, as shown in FIG. Figure 1 and Figure 2 As shown, the lifting seat 300 of this embodiment is arranged on the central symmetry axis between the first clamping component 100 and the second clamping component 200, the moving drive component 800 is used to drive the lifting seat 300 to move in the longitudinal direction, and the second stretching drive component 400 is used to drive the lifting seat 300 to move along the symmetrical axis between the first clamping component 100 and the second clamping component 200, wherein the symmetrical axis, transverse direction and longitudinal direction are arranged perpendicular to each other.

[0027] It can be understood that according to the arrangement direction of the first clamping assembly 100 and the second clamping assembly 200, the longitudinal direction is the front-to-back direction, and the axial direction of symmetry is the up-down direction, the moving drive assembly 800 drives the lifting seat 300 to move forward and backward, and the second stretching drive member 400 drives the lifting seat 300 to rise and fall in the up-down direction, wherein the top or bottom of the lifting seat 300 conflicts with the single wire 720 in the wiring harness 700, and the top of the lifting seat 300 of this embodiment conflicts with the single wire 720 in the wiring harness 700.

[0028] When in use, the wire harness 700 to be tested is extended left and right, such as Figure 4 As shown, the terminal clamping modules 120 on the left and right sides clamp and fix the wiring terminals 710 at both ends of the wiring harness 700, and then the first clamping assembly 100 and the second clamping assembly 200 are driven away from each other by the first stretching driving assembly to test the connection performance between the wiring terminals 710 and all the wires 720; Figure 5 As shown, when the wiring terminals 710 at both ends of the wiring harness 700 are clamped and fixed, the lifting seat 300 can also be used to abut against the outer periphery of the wire 720, and the lifting seat 300 is driven by the second stretching driving member 400 to move upward, and the wire 720 is stretched by the lifting seat 300, and the lifting seat 300 is driven to move in the front-to-back direction by the moving driving assembly 800, so that the lifting seat 300 can correspond to each wire 720, so as to realize the test of the connection performance between each wire 720 and the wiring terminal 710; as shown in FIG. Figure 6 As shown, the ends of all the wires 720 in the wire harness 700 are clamped and fixed by the wire clamping modules 110 on the left and right sides, and then the first clamping assembly 100 and the second clamping assembly 200 are driven away from each other by the first tensile driving assembly to achieve the tensile performance test of all the wires 720; Figure 7 As shown, after clamping and fixing both ends of all the wires 720 in the wiring harness 700, the lifting seat 300 can also be used to abut against the outer periphery of the wire 720, and when the second stretching driving member 400 drives the lifting seat 300 to move upward, the wire 720 is stretched by the lifting seat 300, and the lifting seat 300 is driven to move along the front and rear direction by the moving driving assembly 800, so that the lifting seat 300 can correspond to each wire 720 to realize the test of the tensile performance of each wire 720. The wire harness tensile testing device of the present invention can realize the test of the connection performance between the terminal 710 and the wire 720, the tensile performance of all the wires 720, and the tensile performance of each wire 720, and has multiple testing functions.

[0029] During the test, the stretching force is controlled and monitored by adjusting and monitoring the driving force of the first stretching drive assembly and the second stretching drive member 400 .

[0030] In some other embodiments, when testing the tensile performance of a single wire 720 or the connection performance between a single wire 720 and a terminal 710, the corresponding wire 720 can be supported by the lifting seat 300 so that the middle part of the wire 720 arches upward, and then the first clamping assembly 100 and the second clamping assembly 200 are driven away from each other by the first tensile driving assembly. The single wire can also be subjected to a tensile test. At this time, the force of the first tensile driving assembly acting between the first clamping assembly 100 and the second clamping assembly 200 is monitored as the tensile force.

[0031] Considering that during the use of the wiring harness 700, the plug-in performance between the wiring terminal 710 and the terminal socket 500 also needs to be considered, such as Figure 1 and Figure 2 As shown, the first clamping assembly 100 and the second clamping assembly 200 of this embodiment further include a terminal socket 500 and a third stretching driving assembly, respectively. The terminal socket 500 is located on the side of the terminal clamping module 120 facing away from the wire clamping module 110, and the third stretching driving assembly drives the terminal socket 500 and the terminal clamping module 120 to move closer to and away from each other in the lateral direction. It can be understood that, as Figure 8 As shown, when it is necessary to test the plug-in performance between the wiring terminal 710 and the terminal socket 500, the wiring terminals 710 at both ends of the wiring harness 700 are respectively plugged into the two terminal sockets 500, and then the wiring terminals 710 are fixed by the terminal clamping module 120, and the terminal socket 500 and the terminal clamping module 120 are driven away from each other by the third stretching drive component, and the driving force of the third stretching drive component is controlled to realize the plug-in performance between the wiring terminal 710 and the terminal socket 500, so as to test the tensile force required for the separation between the wiring terminal 710 and the terminal socket 500.

[0032] In addition, when performing other tests, the terminal block 710 can also be connected to the terminal socket 500 to achieve pre-installation of the wiring harness 700. After that, the first clamping assembly 100 and the second clamping assembly 200 are driven away from each other by the first stretching drive assembly so that the wiring harness 700 is fully unfolded. Then, the wire clamping module 110 clamps and fixes the wire 720, or the terminal clamping module 120 clamps and fixes the terminal block 710.

[0033] Furthermore, considering the current tensile test method, the tensile force can only be controlled to test the wire harness 700 to determine whether the various connections or guides in the wire harness 700 can withstand the set tensile force. During the test, it is only possible to observe whether the exterior of the wire harness 700 is damaged, or after the tensile test, the wire harness 700 is removed and then installed on the set equipment for signal function testing. This test is inefficient and the internal structure of the wire harness 700 cannot be seen, resulting in inaccuracy. The wire harness 700 is also easily affected by transportation and disassembly.

[0034] This embodiment also provides a signal generator receiver (not shown in the figure), and the signal output end and signal receiving end of the signal generator receiver are respectively connected to the two terminal sockets 500. When testing, the wiring terminals 710 at both ends of the wiring harness 700 are plugged together with the terminal sockets 500 to form an electrical circuit. At this time, the signal generated by the signal generator receiver is transmitted to one end of the wiring harness 700, and then the other end of the wiring harness 700 transmits the signal back to the signal generator receiver. If the wiring harness 700 operates normally, the signal generator receiver will receive the set signal information. If the wiring harness 700 is abnormal, there is a break inside the wire 720, the electrical contact between the wiring terminal 710 and the wire 720 is poor, and the electrical contact between the wiring terminal 710 and the terminal socket 500 is poor, then the signal generator receiver cannot receive the signal information.

[0035] Furthermore, when performing the above-mentioned various functional tests on the wiring harness 700, the terminal 710 can be connected to the terminal socket 500, and the signal generator receiver can be turned on, and then the above-mentioned operations can be performed to detect whether the wiring harness 700 is damaged by monitoring the signal information of the signal generator receiver. It can also be used as an indicator for the tensile test. When performing the maximum tensile test, the test can be performed based on the signal of the signal generator receiver and the outside of the wiring harness 700 to determine the maximum tensile force that the wiring harness 700 can withstand in different functional tests.

[0036] Furthermore, when a single wire 720 is subjected to a tensile test, since the wire 720 needs to be bent, if the orientation of the terminal 710 remains unchanged, the wire 720 and the wire opening of the terminal 710 will form a certain angle, which will generate a certain shear force on the wire 720, and even generate friction between the wire 720 and the wire opening of the terminal 710, affecting the accuracy of the tensile test. In order to overcome the shear force and friction of the wire 720, the present embodiment is provided. Figure 1 and Figure 2As shown, the first clamping assembly 100 and the second clamping assembly 200 of the present embodiment further include a rotating seat 130, a movable seat 140 and a locking structure 150, respectively. The rotating seat 130 is rotatably mounted on the movable seat 140, and the rotating axis of the rotating seat 130 is along the front-to-back direction, and the locking structure 150 is used to lock the rotation angle of the rotating seat 130. The terminal socket 500, the terminal clamping module 120 and the wire clamping module 110 are arranged in a straight line along the same diameter direction of the rotating seat 130.

[0037] When a single wire 720 is subjected to a tensile test, the locking structure 150 is released to allow the rotating seat 130 to rotate freely on the moving seat 140. When the lifting seat 300 supports the corresponding wire 720 so that the middle part of the wire 720 arches upward, the rotating seat 130 will rotate following the extension direction of the two ends of the wire 720, so that the extension direction of the two ends of the wire 720 is located in the diameter direction of the rotating seat 130, that is, the arrangement direction between the terminal socket 500, the terminal clamping module 120 and the wire clamping module 110 remains in the same direction as the two ends of the wire 720, and they are all located in the same diameter direction of the rotating seat 130.

[0038] When performing other functional tests, the locking structure 150 is used to lock the rotation angle of the rotating base 130 so that the wire clamping modules 110 on the left and right sides are arranged opposite to each other.

[0039] like Figure 2 As shown, the locking structure 150 of this embodiment includes a locking bolt 151, wherein the locking bolt 151 is threadedly mounted on the movable seat 140, and the rotating seat 130 is provided with a locking opening 152, and the locking bolt 151 extends into the locking opening 152 to achieve locking of the rotating seat 130. In some other embodiments, the locking structure 150 may adopt other structures, for example, it may be fixed by a pin.

[0040] In addition, in this embodiment, when a tensile test is performed on a single wire 720, the positions of the first clamping assembly 100 and the second clamping assembly 200 in the left-right direction are fixed.

[0041] like Figure 1 As shown, the first stretching mechanism of this embodiment also includes a base 160, and two movable seats 140 are slidably installed on the base 160 along the left and right directions, and the first stretching driving assembly includes two first stretching driving members 170, and the two first stretching driving members 170 are respectively connected to the two movable seats 140 in transmission. In this embodiment, the first stretching driving member 170 is used to drive the corresponding movable seat 140 to move along the left and right directions separately, so as to drive the terminal socket 500, the terminal clamping module 120 and the wire clamping module 110 to move synchronously along the left and right directions.

[0042] Among them, the first stretching drive member 170 can be a linear drive structure such as a cylinder, an oil cylinder or a linear motor, and the first stretching drive member 170 in this embodiment can adjust and monitor the driving force acting on the movable seat 140. Furthermore, in some embodiments, a force sensor can be set between the first stretching drive member 170 and the movable seat 140 to detect the size of the driving force, that is, to detect the size of the stretching force.

[0043] like Figure 2 As shown, in this embodiment, a guide rail 161 extending leftward and rightward is provided on the base 160, and the movable seat 140 is slidably mounted on the guide rail 161 to achieve guidance.

[0044] like Figure 3 As shown, the second stretching mechanism of this embodiment also includes a slide 600 installed on the base 160 along the forward and backward sliding, the mobile driving component 800 is transmission-connected with the slide 600, and the second stretching driving member 400 is installed on the slide 600. The top of the second stretching driving member 400 is provided with a driving lifting end transmission-connected with the lifting seat 300. When it is necessary to drive the lifting seat 300 to move forward and backward, the slide 600 is driven to move forward and backward through the mobile driving component 800. When it is necessary to drive the lifting seat 300 to move up and down, the second stretching driving member 400 directly drives the lifting seat 300 to move up and down.

[0045] In this embodiment, a slide rail 162 extending forward and backward is provided on the base 160 , and the slide seat 600 is installed on the slide rail 162 .

[0046] Among them, the second stretching drive member 400 and the mobile drive assembly 800 can be linear drive structures such as a cylinder, an oil cylinder or a linear motor. The second stretching drive member 400 in this embodiment can adjust and monitor the driving force acting on the lifting seat 300. Furthermore, in some embodiments, a force sensor can be set between the second stretching drive member 400 and the lifting seat 300 to detect the size of the driving force, that is, to detect the size of the stretching force.

[0047] like Figure 3 As shown, a wire groove 310 is provided on the top side of the lifting seat 300 of the present embodiment. On the projection surface in the front-to-back direction, the wire groove 310 is arranged in an arc shape. When the tensile performance of a single wire 720 in the wire harness 700 is tested, the lifting seat 300 contacts the wire 720 through the wire groove 310 to achieve limiting resistance to the wire 720.

[0048] like Figure 2 As shown, the wire clamping module 110 of this embodiment includes two wire clamping blocks 111 and two wire clamping driving members 112. The two wire clamping blocks 111 are arranged relatively spaced apart in the up-down direction, and the two wire clamping driving members 112 are transmission-connected to the two wire clamping blocks 111. The terminal clamping module 120 includes two terminal clamping blocks 121 and two terminal clamping driving members 122. The two terminal clamping blocks 121 are arranged relatively spaced apart in the up-down direction, and the two terminal clamping driving members 122 are respectively connected to the two terminal clamping blocks 121 in a transmission manner. The terminal socket 500 is located at one side between the two terminal clamping blocks 121 , and the third stretching driving assembly includes a third stretching driving member 510 drivingly connected to the terminal socket 500 .

[0049] This embodiment takes into account that the wire 720 is generally connected to the middle of the terminal 710. In order to keep the wire 720 and the terminal 710 on the same center line, this embodiment uses two wire clamping drivers 112 to drive the two wire clamping blocks 111 to move respectively, and uses two terminal clamping drivers 122 to drive the two terminal clamping blocks 121 to move respectively, so as to facilitate centering.

[0050] In addition, the wire clamping module 110, the terminal clamping module 120 and the terminal socket 500 of this embodiment are all arranged on the front side of the rotating seat 130, and the rotating seat 130 is a disc structure, which makes it more convenient for the disassembly and assembly of the wire harness 700.

[0051] Furthermore, if Fig. 9 As shown, the two wire clamping blocks 111 of this embodiment are respectively provided with a plurality of clamping grooves 1111 extending in the left-right direction on the opposite sides, and the plurality of clamping grooves 1111 are arranged in the front-to-back direction. When the two wire clamping blocks 111 clamp and fix all the wires 720, the wires 720 are clamped and fixed between the clamping grooves 1111 on both sides, and all the wires 720 can be arranged at intervals in the front-to-back direction to facilitate the tensile test of a single wire 720.

[0052] like Figure 2 As shown, the present invention also provides a wire harness stretching test method, which is applicable to the above-mentioned wire harness stretching test device. The wire harness stretching test method comprises the following steps: Step S100: When it is necessary to test the connection performance between the wiring terminals 710 and all the wires 720 in the wiring harness 700, the two wiring terminals 710 are clamped on the terminal clamping modules 120 on both sides, respectively, and the first clamping assembly 100 and the second clamping assembly 200 are driven to move away from each other in the lateral direction, and the tensile force acting between the first clamping assembly 100 and the second clamping assembly 200 is monitored, such as Figure 4 As shown; Step S200: When the tensile properties of all the wires 720 in the wire harness 700 need to be tested, the two ends of all the wires 720 are clamped on the wire clamping modules 110 on both sides, driving the first clamping assembly 100 and the second clamping assembly 200 to move away from each other in the lateral direction, and monitoring the tensile force acting between the first clamping assembly 100 and the second clamping assembly 200, such as Figure 6 As shown; Step S300: When it is necessary to test the tensile performance of each wire 720 in the wire harness 700, the two ends of all the wires 720 are clamped on the wire clamping modules 110 on both sides, and the lifting seat 300 is driven to move longitudinally to a position corresponding to the set wire 720, and the lifting seat 300 is driven to move along the symmetrical axis, and the lifting seat 300 is abutted against the outer periphery of the wire 720, and the wire 720 is pushed, and the tensile force acting on the lifting seat 300 is monitored, and then the lifting seat 300 is driven to reset, and the lifting seat 300 is driven to move to a position corresponding to other wires 720, and the lifting seat 300 is driven to perform a tensile test on the wire 720, such as Figure 7 shown.

[0053] Step S400: When it is necessary to test the connection performance between the terminal 710 in the wiring harness 700 and each wire 720, the two terminal blocks 710 are clamped on the terminal clamping modules 120 on both sides, and the lifting seat 300 is driven to move longitudinally to a position corresponding to the set wire 720, and the lifting seat 300 is driven to move along the symmetrical axis, and the lifting seat 300 is abutted against the outer periphery of the wire 720, and the wire 720 is pushed, and the tensile force acting on the lifting seat 300 is monitored, and then the lifting seat 300 is driven to reset, and the lifting seat 300 is driven to move to a position corresponding to other wires 720, and the lifting seat 300 is driven to perform a tensile test on the wire 720, such as Figure 5 As shown; Furthermore, the wire harness stretching test method of this embodiment also includes: Step S500: When the plug-in performance of the connection terminal 710 in the wiring harness 700 needs to be tested, the two connection terminals 710 are respectively plugged into the two terminal sockets 500, and the two connection terminals 710 are respectively clamped on the terminal clamping modules 120 on both sides, driving the terminal sockets 500 and the terminal clamping modules 120 to move away from each other in the lateral direction, and monitoring the tensile force acting between the terminal sockets 500 and the terminal clamping modules 120, such as Figure 8 As shown; Step S600: When testing the connection performance between the wiring terminals 710 and the wires 720 in the wiring harness 700, the tensile performance of all the wires 720, the tensile performance of each wire 720, and the plug-in performance of the wiring terminals 710, the signal generator receiver is respectively connected to the terminal sockets 500 on both sides, and the two wiring terminals 710 are respectively plugged into the two terminal sockets 500, and the detection signal is transmitted to the wiring harness 700 through the signal generator receiver, and the received signal information of the signal generator receiver is monitored to determine whether the wiring harness 700 transmits the signal normally.

[0054] Meanwhile, during the test, the exterior of the wire harness 700 may also be observed to determine whether there is any stretch damage on the exterior.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0056] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A wire harness tensile testing device, characterized in that: include: The first stretching mechanism comprises a first clamping assembly, a second clamping assembly, and a first stretching driving assembly, wherein the first clamping assembly and the second clamping assembly are symmetrically arranged at intervals in a transverse direction, and the first stretching driving assembly is used to drive the first clamping assembly and the second clamping assembly to move closer to and farther from each other in the transverse direction, and the first clamping assembly and the second clamping assembly respectively comprise a wire clamping module and a terminal clamping module arranged in the transverse direction, and the two terminal clamping modules are respectively located on the side away from each other of the two wire clamping modules; The second stretching mechanism includes a lifting seat, a mobile driving assembly and a second stretching driving member, the lifting seat is located between the first clamping assembly and the second clamping assembly, the mobile driving assembly is used to drive the lifting seat to move along the longitudinal direction, and the second stretching driving member is used to drive the lifting seat to move along the symmetrical axis between the first clamping assembly and the second clamping assembly, and the symmetrical axis, the transverse direction and the longitudinal direction are arranged perpendicular to each other.

2. The wire harness tensile testing device according to claim 1, characterized in that: The first clamping assembly and the second clamping assembly also include a terminal socket and a third stretching drive assembly respectively. The terminal socket is located on the side of the terminal clamping module facing away from the wire clamping module. The third stretching drive assembly is used to drive the terminal socket and the terminal clamping module to move closer to and away from each other in the lateral direction.

3. The wire harness tensile testing device according to claim 2, characterized in that: The first clamping assembly and the second clamping assembly also include a rotating seat, a movable seat and a locking structure respectively. The rotating seat is rotatably installed on the movable seat, and the rotating axis of the rotating seat extends along the longitudinal direction. The locking structure is used to lock the rotation angle of the rotating seat. The terminal socket, the terminal clamping module and the wire clamping module are arranged in a straight line along the same diameter direction of the rotating seat.

4. The wire harness tensile testing device according to claim 3, characterized in that: The first stretching mechanism also includes a base, and the two movable seats are installed on the base along the lateral sliding direction. The first stretching drive assembly includes two first stretching drive members, and the two first stretching drive members are respectively connected to the two movable seats in a transmission manner.

5. The wire harness tensile testing device according to claim 4, characterized in that: The second stretching mechanism also includes a slide seat slidably installed on the base along the longitudinal direction, the mobile drive assembly is transmission-connected to the slide seat, the second stretching drive member is installed on the slide seat, and the top of the second stretching drive member is provided with a driving lifting end transmission-connected to the lifting seat.

6. The wire harness tensile testing device according to claim 3, characterized in that: The wire clamping module comprises two wire clamping blocks and two wire clamping driving members, the two wire clamping blocks are arranged at a relative interval along the symmetrical axis, and the two wire clamping driving members are respectively connected to the two wire clamping blocks in a transmission manner; The terminal clamping module comprises two terminal clamping blocks and two terminal clamping driving members, the two terminal clamping blocks are arranged at a relative interval along the symmetrical axis, and the two terminal clamping driving members are respectively connected to the two terminal clamping blocks in a transmission manner; The terminal socket is located at one side between the two terminal clamping blocks, and the third stretching drive assembly includes a third stretching drive member drivingly connected to the terminal socket.

7. The wire harness tensile testing device according to claim 6, characterized in that: A plurality of clamping grooves extending along the transverse direction are respectively arranged on one side of the two wire clamping blocks facing each other, and the plurality of clamping grooves are arranged in an array along the longitudinal direction.

8. The wire harness tensile testing device according to claim 7, characterized in that: A wire groove is arranged on the top side of the lifting seat, and the wire groove is arranged in an arc shape on the longitudinal projection surface.

9. A wire harness tensile test method, characterized in that: Applicable to the wire harness tensile testing device according to any one of claims 1 to 8, the wire harness tensile testing method comprising: When it is necessary to test the connection performance between the wiring terminals and all the wires in the wiring harness, the two wiring terminals are clamped on the terminal clamping modules on both sides respectively, the first clamping assembly and the second clamping assembly are driven to move away from each other in the lateral direction, and the tensile force acting between the first clamping assembly and the second clamping assembly is monitored; When the tensile properties of all the wires in the wiring harness need to be tested, both ends of all the wires are clamped on the wire clamping modules on both sides, the first clamping assembly and the second clamping assembly are driven to move away from each other in the lateral direction, and the tensile force acting between the first clamping assembly and the second clamping assembly is monitored; When the tensile performance of each wire in the wiring harness needs to be tested, the two ends of all the wires are clamped on the wire clamping modules on both sides respectively, the lifting seat is driven to move along the longitudinal direction to the position corresponding to the set wire, the lifting seat is driven to move along the symmetrical axis, the lifting seat is abutted against the outer periphery of the wire, and the wire is pushed, the tensile force acting on the lifting seat is monitored, and then the lifting seat is driven to reset, the lifting seat is driven to move to the position corresponding to other wires, and the lifting seat is driven to perform a tensile test on the wire; When it is necessary to test the connection performance between the terminal blocks in the wiring harness and each wire, the two terminal blocks are clamped on the terminal clamping modules on both sides respectively, and the lifting seat is driven to move longitudinally to a position corresponding to the set wire, and the lifting seat is driven to move symmetrically along the axial direction. The lifting seat abuts against the outer periphery of the wire and pushes the wire, and the tensile force acting on the lifting seat is monitored. Then, the lifting seat is driven to reset, and the lifting seat is driven to move to a position corresponding to other wires, and the lifting seat is driven to perform a tensile test on the wire.

10. The wire harness tensile testing method according to claim 9, characterized in that: With respect to the wire harness tensile testing device according to claim 3, the wire harness tensile testing method further comprises: When the plug-in performance of the wiring terminals in the wiring harness needs to be tested, two wiring terminals are respectively plugged into the two terminal sockets, and the two wiring terminals are respectively clamped on the terminal clamping modules on both sides, driving the terminal sockets and the terminal clamping modules to move away from each other in the lateral direction, and monitoring the tensile force acting between the terminal sockets and the terminal clamping modules; When testing the connection performance between the wiring terminals and the wires in the wiring harness, the tensile performance of all the wires, the tensile performance of each wire, and the plug-in performance of the wiring terminals, the signal generator receiver is respectively connected to the terminal sockets on both sides, and the two wiring terminals are respectively plugged into the two terminal sockets. The detection signal is transmitted to the wiring harness through the signal generator receiver, and the received signal information of the signal generator receiver is monitored to determine whether the wiring harness transmits the signal normally.

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