Wire harness tensile testing device and method

Abstract

The present invention discloses a wire harness stretching test device and method. The wire harness stretching test device includes a first stretching mechanism and a second stretching mechanism. The first stretching mechanism includes a first clamping assembly, a second clamping assembly, and a first stretching drive assembly. The first stretching drive assembly is used to drive the first clamping assembly and the second clamping assembly to move toward and away from each other in the transverse direction. The first clamping assembly and the second clamping assembly respectively include a wire clamping module and a terminal clamping module. The second stretching mechanism includes a lifting seat, a moving drive assembly, and a second stretching drive member. The lifting seat is located between the first clamping assembly and the second clamping assembly. The moving drive assembly is used to drive the lifting seat to move longitudinally. The second stretching drive member is used to drive the lifting seat to move symmetrically along the axis between the first clamping assembly and the second clamping assembly. The present invention can realize the testing of the connection performance between the terminal and the wire, the stretching performance of all the wires, and the stretching performance of each wire.

Description

Technical Field

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

[0002] A wiring harness is a wiring component that connects various electrical devices in the electrical field, transmitting electrical signals between power supplies, switches, electrical appliances, and electronic devices. Existing wiring harnesses generally consist of multiple wires and two terminal blocks connected to two sections of the wires. Existing wiring harnesses are subjected to tensile testing after production. Existing wiring harness tensile testing devices can only test the overall tensile performance of the wiring harness, that is, the tensile performance of multiple wires as a whole. During production, the wire types and materials in the wiring harness vary depending on the signal transmission. Performing an overall tensile test will not be able to test the tensile performance of each wire. Furthermore, existing wiring harness tensile testing devices cannot test the connection performance between the wires and the terminal blocks, and their functions are limited. Summary of the Invention

[0003] The object of the present invention is to provide a wire harness tensile testing device and method to solve one or more technical problems existing in the prior art and at least provide a beneficial option or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] The present invention provides a wire harness tensile testing device, comprising:

[0006] The first stretching mechanism includes a first clamping assembly, a second clamping assembly, and a first stretching drive assembly, wherein the first clamping assembly and the second clamping assembly are symmetrically arranged at intervals along the transverse direction, and the first stretching drive assembly is used to drive the first clamping assembly and the second clamping assembly to move closer to and away from each other along the transverse direction, and the first clamping assembly and the second clamping assembly respectively include a wire clamping module and a terminal clamping module arranged along the transverse direction, and the two terminal clamping modules are respectively located on a side of the two wire clamping modules that are away from each other;

[0007] 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 longitudinally. 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. The symmetrical axis, the transverse direction and the longitudinal direction are arranged perpendicular to each other.

[0008] The beneficial effects of the wire harness tensile testing device of the present invention are:

[0009] When in use, the terminal clamping modules on both sides are used to clamp and fix the terminal blocks 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 realize the test of the connection performance between the terminal blocks and the wires; while the terminal blocks at both ends of the wiring harness are clamped and fixed, the jacking seat can also be used to abut against the periphery of the wires, and when the second stretching drive member drives the jacking seat to move upward, the wires are stretched by the jacking seat, and the mobile drive assembly drives the jacking seat to move in the front and rear directions, so that the jacking seat can correspond to each wire to realize the test of the connection performance between each wire and the terminal blocks; 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 clamping assembly and the second clamping assembly are used to move away from each other The first tensile drive component drives the first clamping component and the second clamping component to move away from each other to achieve a test of the tensile performance of all wires; when the two ends of all wires in the wiring harness are clamped and fixed, the lifting seat can also be used to abut the outer periphery of the wire, and the second tensile drive component drives the lifting seat to move symmetrically axially between the first clamping component and the second clamping component, and the lifting seat is stretched by the lifting seat, and the mobile drive component drives the lifting seat to move longitudinally, so that the lifting seat corresponds to each wire to achieve a test of the tensile performance of each wire; the wire harness tensile testing device of the present invention can realize the test of the connection performance between the terminal and the wire, the tensile performance of all wires, and the tensile performance of each wire, and has multiple testing functions.

[0010] 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 horizontal direction.

[0011] 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, terminal clamping module and wire clamping module are arranged in a straight line along the same diameter direction of the rotating seat.

[0012] As a further improvement of the above technical solution, the first stretching mechanism also includes a base, the two movable seats are installed on the base along the horizontal sliding direction, and 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.

[0013] As a further improvement of the above technical solution, the second stretching mechanism also includes a slide installed on the base along the longitudinal sliding direction, the mobile drive assembly is transmission connected to the slide, the second stretching drive member is installed on the slide, and the top of the second stretching drive member is provided with a driving lifting end transmission connected to the lifting seat.

[0014] 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;

[0015] The terminal clamping module comprises two terminal clamping blocks and two terminal clamping driving members, the two terminal clamping blocks are arranged with relative spacing along the symmetrical axis, and the two terminal clamping driving members are respectively connected to the two terminal clamping blocks in a transmission manner;

[0016] The terminal socket is located on one side between the two terminal clamping blocks, and the third stretching drive assembly includes a third stretching drive member transmission-connected to the terminal socket.

[0017] 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 along the longitudinal direction.

[0018] 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.

[0019] The present invention also provides a wire harness tensile testing method, which is applicable to the wire harness tensile testing device. The wire harness tensile testing method includes:

[0020] 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 transverse direction, and the tensile force acting between the first clamping assembly and the second clamping assembly is monitored;

[0021] When the tensile properties of all the wires in the wiring harness need to be tested, both ends of all the wires are clamped by 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 transverse direction, and the tensile force acting between the first clamping assembly and the second clamping assembly is monitored;

[0022] When the tensile performance of each wire in the wiring harness needs to be tested, both ends of all the wires are clamped by the wire clamping modules on both sides, 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 brought into contact with 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, and 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;

[0023] 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 the position corresponding to the set wire, and the lifting seat is driven to move along the symmetrical axis. The lifting seat is brought into contact with the outer periphery of the wire and the wire is pushed, 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 the position corresponding to the other wires, and the lifting seat is driven to perform a tensile test on the wire.

[0024] As a further improvement of the above technical solution, the wire harness tensile testing method further includes:

[0025] When it is necessary to test the plugging performance of the wiring terminals in the wiring harness, 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;

[0026] 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 connected to the terminal sockets on both sides respectively, and the two wiring terminals are plugged into the two terminal sockets respectively. 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.

[0027] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0029] Figure 1 This is a front view of an embodiment of the wire harness tensile testing device provided by the present invention;

[0030] Figure 2 This is a partial schematic diagram of the left side of an embodiment of the wire harness tensile testing device provided by the present invention;

[0031] Figure 3 yes Figure 1 Cross-sectional view of section AA;

[0032] Figure 4 This is a schematic diagram of a wire harness tensile testing device provided by the present invention, in which one embodiment tests the connection performance between a terminal block and all wires;

[0033] Figure 5 This is a schematic diagram of a wire harness tensile testing device provided by the present invention, in which one embodiment tests the connection performance between each wire and the terminal;

[0034] 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;

[0035] 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 properties of each wire;

[0036] Figure 8 This is a schematic diagram of a wiring harness tensile testing device provided by the present invention, in which one embodiment tests the plugging performance of a terminal block in a wiring harness;

[0037] Figure 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;

[0038] Figure Number:

[0039] First clamping assembly 100; wire clamping module 110; wire clamping block 111; clamping groove 1111; wire clamping driver 112; terminal clamping module 120; terminal clamping block 121; terminal clamping driver 122; rotating base 130; moving base 140; locking structure 150; locking bolt 151; locking port 152; base 160; guide rail 161; slide rail 162; first tensioning driver 170;

[0040] A second clamping assembly 200;

[0041] Lifting seat 300; Wire duct 310;

[0042] A second stretching driving member 400;

[0043] Terminal socket 500; third tension driving member 510;

[0044] Slide 600;

[0045] Wiring harness 700; terminal block 710; wire 720;

[0046] Move the drive assembly 800 . DETAILED DESCRIPTION

[0047] The following describes embodiments of the present invention in detail. Examples of the embodiments 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0048] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying 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 cannot be understood as a limitation on the present invention.

[0049] In the description of the present invention, "a plurality" refers to more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed 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.

[0050] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting 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.

[0051] The technical solutions of the present invention will be described clearly and completely below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments.

[0052] The existing wire harness tensile testing device can only test the overall tensile performance of the wire harness 700, that is, to perform an overall test on the tensile performance of multiple wires 720. During production, according to different signal transmissions, the models and materials of the wires 720 in the wire harness 700 will be different. Performing an overall stretch will not be able to test the tensile performance of each wire 720. In addition, the existing wire harness tensile testing device is also unable to test the connection performance between the wires 720 and the terminal blocks 710, and the plug-in performance of the terminal blocks 710. When performing a tensile 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 tensile test, it can only be identified through external observation. Therefore, the present invention proposes a wire harness tensile testing device to solve the above technical problems.

[0053] 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.

[0054] like Figure 1 As shown, the first stretching mechanism of the present invention includes a first clamping assembly 100, a second clamping assembly 200, and a first stretching drive assembly. The first clamping assembly 100 and the second clamping assembly 200 are symmetrically arranged at intervals along the transverse direction. Specifically, the first clamping assembly 100 and the second clamping assembly 200 in this embodiment are symmetrically arranged on the left and right. In some other embodiments, the first clamping assembly 100 and the second clamping assembly 200 can be symmetrically arranged on the top and bottom or symmetrically arranged on the front and back. This embodiment takes the first clamping assembly 100 and the second clamping assembly 200 as an example of being symmetrically arranged on the left and right.

[0055] The first clamping assembly 100 and the second clamping assembly 200 of this embodiment are structurally identical. 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 the left-right direction, wherein the two wire clamping modules 110 are arranged opposite to each other on the left and right sides, 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.

[0056] The first stretching drive 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.

[0057] like Figure 1 and Figure 3 As shown, the second stretching mechanism of this embodiment includes a lifting seat 300, a mobile driving assembly 800 and a second stretching driving 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 longitudinally, 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.

[0058] 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. The top of the lifting seat 300 of this embodiment conflicts with the single wire 720 in the wiring harness 700.

[0059] When in use, the harness 700 to be tested is extended left and right, as shown in FIG. 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 tensile driving assembly to achieve the connection performance test between the wiring terminals 710 and all the wires 720; Figure 5 As shown, while 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. When the second stretching drive 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 in the front-to-back direction by the moving drive assembly 800, so that the lifting seat 300 can correspond to each wire 720 to achieve the connection performance test 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. When the second stretching drive 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 in the front and rear directions by the moving drive 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.

[0060] 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 .

[0061] In some other embodiments, when testing the tensile properties of a single wire 720 or testing 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 drive assembly. A tensile test can also be performed on a single guide. At this time, the force exerted by the first tensile drive assembly on the first clamping assembly 100 and the second clamping assembly 200 is monitored as the tensile force.

[0062] Considering that during the use of the wiring harness 700, the plug-in performance between the 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 drive 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 drive 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 shown in FIG. 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 terminal clamping module 120 is used to support and fix the wiring terminal 710, and the terminal socket 500 and the terminal clamping module 120 are driven away from each other by the third tensile driving component, and the driving force of the third tensile driving 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.

[0063] In addition, when conducting other tests, the terminal block 710 can also be connected to the terminal socket 500 to achieve pre-installation of the wiring harness 700. Then, the first clamping assembly 100 and the second clamping assembly 200 are driven away from each other by the first stretching drive assembly to allow the wiring harness 700 to be 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.

[0064] Furthermore, considering the current tensile testing method, the wire harness 700 can only be tested by controlling the tensile force to determine whether the various connections or guides in the wire harness 700 can withstand the set tensile force. During the test, the wire harness 700 can only be observed to see if there is any damage on the outside, 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.

[0065] 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, there is poor electrical contact between the wiring terminal 710 and the wire 720, and there is poor electrical contact between the wiring terminal 710 and the terminal socket 500, then the signal generator receiver cannot receive the signal information.

[0066] 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. By monitoring the signal information of the signal generator receiver, it can be detected whether the wiring harness 700 is damaged. It can also be used as an indicator of 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.

[0067] 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, this embodiment is provided. Figure 1 and Figure 2As shown, the first clamping assembly 100 and the second clamping assembly 200 of this embodiment also include a rotating seat 130, a movable seat 140 and a locking structure 150, respectively. The rotating seat 130 is rotatably installed 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.

[0068] When a single wire 720 is subjected to a tensile test, the locking structure 150 is released, allowing the rotating seat 130 to rotate freely on the movable seat 140. When the lifting seat 300 supports the corresponding wire 720, causing the middle part of the wire 720 to arch 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.

[0069] When performing other functional tests, the rotation angle of the rotating base 130 is locked by the locking structure 150 so that the wire clamping modules 110 on the left and right sides are arranged relative to each other.

[0070] like Figure 2 As shown, the locking structure 150 of this embodiment includes a locking bolt 151, wherein the locking bolt 151 is threadedly installed 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.

[0071] 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.

[0072] like Figure 1 As shown, the first stretching mechanism of this embodiment also includes a base 160, and the two movable seats 140 are slidably installed on the base 160 along the left and right directions, and the first stretching drive assembly includes two first stretching drive members 170, and the two first stretching drive members 170 are respectively connected to the two movable seats 140 in a transmission manner. In this embodiment, the first stretching drive member 170 is used to separately drive the corresponding movable seat 140 to move along the left and right directions, 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.

[0073] 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 magnitude of the driving force, that is, to detect the magnitude of the stretching force.

[0074] 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.

[0075] 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 to 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 to 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.

[0076] In this embodiment, a slide rail 162 extending forward and backward is provided on the base 160 , and the slide seat 600 is mounted on the slide rail 162 .

[0077] 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. In some embodiments, a force sensor can be set between the second stretching drive member 400 and the lifting seat 300 to detect the magnitude of the driving force, that is, to detect the magnitude of the stretching force.

[0078] like Figure 3 As shown, a wire groove 310 is provided on the top side of the lifting seat 300 of this 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.

[0079] 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 vertical direction, and the two wire clamping driving members 112 are transmission-connected to the two wire clamping blocks 111.

[0080] 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 with a relative spacing in the vertical direction, and the two terminal clamping driving members 122 are respectively connected to the two terminal clamping blocks 121.

[0081] The terminal socket 500 is located at one side between the two terminal clamping blocks 121 , and the third stretching drive assembly includes a third stretching drive member 510 transmission-connected to the terminal socket 500 .

[0082] 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.

[0083] 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 . The rotating seat 130 is a disc structure, which makes it more convenient to disassemble and assemble the wire harness 700 .

[0084] Further, if Figure 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 thereof, 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 tensile testing of a single wire 720.

[0085] like Figure 2 As shown, the present invention also provides a wire harness tensile testing method, which is applicable to the above-mentioned wire harness tensile testing device. The wire harness tensile testing method includes the following steps:

[0086] Step S100: When it is necessary to test the connection performance between the terminal 710 and all the wires 720 in the wiring harness 700, the two terminal 710 are clamped on the terminal clamping modules 120 on both sides, and the first clamping component 100 and the second clamping component 200 are driven to move away from each other in the lateral direction, and the tensile force acting between the first clamping component 100 and the second clamping component 200 is monitored, such as Figure 4 As shown;

[0087] Step S200: When the tensile properties of all the wires 720 in the wiring harness 700 need to be tested, both ends of all the wires 720 are clamped on the wire clamping modules 110 on both sides, and the first clamping assembly 100 and the second clamping assembly 200 are driven to move away from each other in the horizontal direction, and the tensile force acting between the first clamping assembly 100 and the second clamping assembly 200 is monitored. Figure 6 As shown;

[0088] Step S300: When it is necessary to test the tensile performance of each wire 720 in the wiring 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 the 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 the position corresponding to the other wires 720, and the lifting seat 300 is driven to perform a tensile test on the wire 720, such as Figure 7 shown.

[0089] Step S400: When it is necessary to test the connection performance between the terminal 710 and each wire 720 in the wiring harness 700, the two terminal 710 are clamped on the terminal clamping modules 120 on both sides, and the lifting seat 300 is driven to move longitudinally to the 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 the position corresponding to the 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;

[0090] Furthermore, the wire harness tensile testing method of this embodiment further includes:

[0091] Step S500: When the plug-in performance of the terminal block 710 in the wiring harness 700 needs to be tested, the two terminal blocks 710 are respectively plugged into the two terminal sockets 500, and the two terminal blocks 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;

[0092] Step S600: When testing the connection performance between the terminal blocks 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 terminal blocks 710, the signal generator receiver is connected to the terminal sockets 500 on both sides respectively, and the two terminal blocks 710 are plugged into the two terminal sockets 500 respectively. 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.

[0093] At the same time, during the test, the exterior of the wiring harness 700 may also be observed to determine whether the exterior is stretched or damaged.

[0094] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

[0095] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the scope of the present invention.

Claims

1. A wire harness tensile testing method, characterized in that: Applicable to the wire harness tensile test device, the wire harness tensile test device includes: The first stretching mechanism includes a first clamping assembly, a second clamping assembly, and a first stretching drive assembly, wherein the first clamping assembly and the second clamping assembly are symmetrically arranged at intervals along the transverse direction, and the first stretching drive assembly is used to drive the first clamping assembly and the second clamping assembly to move closer to and away from each other along the transverse direction, and the first clamping assembly and the second clamping assembly respectively include a wire clamping module and a terminal clamping module arranged along the transverse direction, and the two terminal clamping modules are respectively located on a side of the two wire clamping modules that are away from each other; a second stretching mechanism comprising a lifting seat, a mobile drive assembly, and a second stretching drive member, wherein the lifting seat is located between the first clamping assembly and the second clamping assembly, the mobile drive assembly is used to drive the lifting seat to move in the longitudinal direction, and the second stretching drive member is used to drive the lifting seat to move along the symmetrical axis between the first clamping assembly and the second clamping assembly, wherein the symmetrical axis, the transverse direction, and the longitudinal direction are perpendicular to each other; 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 being rotatably mounted on the movable seat, the rotating axis of the rotating seat extending along the longitudinal direction, the locking structure being used to lock the rotation angle of the rotating seat, the terminal socket, the terminal clamping module and the wire clamping module being arranged in a straight line along the same diameter direction of the rotating seat; The wire harness tensile test method includes: When it is necessary to test the connection performance between the terminal blocks and all the wires in the wiring harness, the two terminal blocks are clamped on the terminal 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 properties of all the wires in the wiring harness need to be tested, both ends of all the wires are clamped by 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 transverse 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, both ends of all the wires are clamped by the wire clamping modules on both sides, 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 brought into contact with 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, and 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 the position corresponding to the set wire, and the lifting seat is driven to move along the symmetrical axis. The lifting seat is brought into contact with the outer periphery of the wire and the wire is pushed, 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 the position corresponding to the other wires, and the lifting seat is driven to perform a tensile test on the wire.

2. The wire harness tensile testing method according to claim 1, wherein: The first clamping assembly and the second clamping assembly respectively further include a terminal socket and a third stretching drive assembly, wherein 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.

3. The wire harness tensile testing method according to claim 1, wherein: The first stretching mechanism further includes a base, and the two movable seats are mounted on the base in a lateral sliding manner. 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.

4. The wire harness tensile testing method according to claim 3, wherein: The second stretching mechanism also includes a slide seat installed on the base for sliding 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 drive lifting end transmission-connected to the lifting seat.

5. The wire harness tensile testing method according to claim 2, wherein: The wire clamping module includes two wire clamping blocks and two wire clamping driving members, the two wire clamping blocks are arranged relatively spaced apart 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 with relative spacing 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 on one side between the two terminal clamping blocks, and the third stretching drive assembly includes a third stretching drive member transmission-connected to the terminal socket.

6. The wire harness tensile testing method according to claim 5, wherein: A plurality of clamping grooves extending along the transverse direction are respectively provided 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.

7. The wire harness tensile testing method according to claim 6, wherein: 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.

8. The wire harness tensile testing method according to claim 2, wherein: The wire harness tensile testing method further includes: When the plugging performance of the wiring terminals in the wiring harness needs to be tested, two wiring terminals are respectively plugged into two terminal sockets, and the two wiring terminals are respectively clamped on the terminal clamping modules on both sides, so that the terminal sockets and the terminal clamping modules move away from each other in the lateral direction, and the tensile force acting between the terminal sockets and the terminal clamping modules is monitored; 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 connected to the terminal sockets on both sides respectively, and the two wiring terminals are plugged into the two terminal sockets respectively. 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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