A tensile testing device for automobile wiring harness terminals

Abstract

The present invention relates to the technical field of automobile wiring harness terminal testing, specifically to an automobile wiring harness terminal tension testing device, comprising a triangular base, an equipment bracket is fixedly installed on the upper end face of the triangular base, a trapezoidal through slot is penetrated through the upper end face of the triangular base and is located below the equipment bracket, and a fixing mechanism is arranged on the triangular base. An integrated operation model of limit fixation, triangular locking and synchronous stretching is adopted to complete the tension test of the terminal and the terminal of the multi-pin terminal, so as to realize the precise tension test of the terminal of the multi-pin terminal, and the stability of the terminal during the test is ensured by lateral positioning and upper limit locking, and the tension applied to the terminal and each terminal is effectively dispersed by two-stage clamping and triangular support, and the synchronously pushed triangular pyramid design ensures the uniformity of the applied tension, improves the accuracy and reliability of the test, and finally realizes the safe, stable and effective tension test of the terminal of the wiring harness.

Description

Technical Field

[0001] The invention relates to the technical field of automobile wiring harness terminal testing, in particular to an automobile wiring harness terminal tension testing device. Background Art

[0002] A multi-pin aggregation harness is a special type of harness in an automotive electrical system. This type of harness has multiple terminals on one side that can be connected to multiple different sensors, actuators, or other electronic components, and a single aggregation terminal on the other side that can be used to connect to the vehicle's main distribution box, control unit, or another larger harness. Since automotive wiring harnesses are subject to various mechanical stresses during the life cycle of the vehicle, such as vibration, bending, stretching, etc., automotive wiring harnesses need to be tensile tested during production to verify whether the automotive wiring harnesses can withstand these stresses without breaking or being damaged.

[0003] At present, there are the following disadvantages when performing tension tests on multi-pin terminal bundles: 1. When performing tension tests on multi-pin terminal bundles, first fix the bundle terminal and one of the terminals on the corresponding base, and then stretch one end of the terminal to the side away from the bundle terminal to test the tension of one of the terminals. After the test is completed, the other terminal is tested in the same way to complete the tension test of the multi-pin terminal bundle. During the above operation, it takes a lot of time and operation to test each terminal one by one, and the operation is complex, which reduces the overall test efficiency. In addition, when the tension tests are performed one by one, each terminal will be unevenly stressed due to different force application methods, thereby affecting the reliability of the test results. 2. When performing tension tests on multi-pin terminal bundles, the cables between the terminals are not effectively supported and fixed, so that the cables are unevenly stretched during the tension test, thereby affecting the accuracy and reliability of the test results. In addition, during the stretching process, the cables may be twisted or bent due to lack of support, which may cause cable damage and affect the use of the multi-pin bundle. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a tensile testing device for automobile wiring harness terminals, which is achieved by the following specific technical means: a tensile testing device for automobile wiring harness terminals, comprising a triangular base, an equipment bracket is fixedly installed on the upper end surface of the triangular base, a trapezoidal through groove is penetrated through the upper end surface of the triangular base and is located below the equipment bracket, and a fixing mechanism is arranged on the triangular base; the fixing mechanism comprises a bearing part arranged on the triangular base and used for loading the summary terminal and the terminal, a limiting part is arranged on the bearing part for limiting the summary terminal and the terminal, and a locking part is also arranged on the bearing part for locking the limiting part to limit and fix the summary terminal and the terminal.

[0005] The equipment bracket is provided with a testing mechanism for cooperating with the fixing mechanism to use a triangular pyramid method to synchronously push the aggregation terminal and the terminal to test the tension of the multi-pin aggregation wiring harness. The trapezoidal through groove is provided with a routing mechanism for dispersing the tension of the multi-pin aggregation wiring harness cable during the testing process of the testing mechanism.

[0006] The wiring mechanism includes a clamping part arranged on the trapezoidal through groove and used to clamp and fix the cable of the multi-pin bundled wiring harness in two sections. The triangular base is provided with a stabilizing part and an alignment part cooperating with the stabilizing part to provide a triangular structural support for the clamping part. The testing mechanism includes a pressing part arranged on the equipment bracket, and the pressing part is provided with a connecting part cooperating with the bearing part.

[0007] As a preferred technical solution of the present invention, the bearing part includes a first slide rail, a slide seat and a positioning block. Three first slide rails distributed circumferentially on the outside of the trapezoidal through groove are fixedly installed on the upper end surface of the triangular base. The three first slide rails are respectively located on the three perpendicular midlines of the triangular base. A slide seat is slidably installed in the first slide rail, and a positioning block for lateral limiting of the aggregation terminal and the terminal is fixedly installed on the slide seat.

[0008] As a preferred technical solution of the present invention, the limiting portion includes a limiting plate, a socket and a plug-in plate. The upper end surface of the positioning block is hinged with a limiting plate for limiting the summary terminal and the top of the terminal. The end of the limiting plate away from the hinge point is slidably penetrated and installed with a plug-in plate. The cross-section of the plug-in plate is T-shaped. A first spring is fixedly installed between the plug-in plate and the limiting plate. The positioning block is provided with a socket for mating with the plug-in plate.

[0009] As a preferred technical solution of the present invention, the locking portion includes a sliding hole, a slide plate and a lock hole. A sliding hole is provided on the outer wall of the positioning block and passes through the sliding hole to communicate with the insertion hole. A slide plate is slidably installed in the sliding hole. A second spring is fixedly installed between the slide plate and the outer wall of the positioning block. The slide plate and the plug plate are perpendicular to each other. A lock hole is provided on one side wall of the plug plate close to the slide plate and is plugged into the slide plate.

[0010] As a preferred technical solution of the present invention, the clamping part includes a support seat, a second slide rail, a bidirectional screw and a clamping slider. The trapezoidal through groove is fixedly installed with a left-right symmetrical support seat through a fixed seat. A symmetrical second slide rail is fixedly installed on the side of the upper end surface of the support seat close to and away from the rear first slide rail. A bidirectional screw is installed through the second slide rail through a bearing. A symmetrical clamping slider is slidably installed in the second slide rail and is threadedly connected to the corresponding bidirectional screw.

[0011] As a preferred technical solution of the present invention, the stabilizing part includes a supporting cross plate, an electric push rod, a triangular plate, a connecting cross plate and a first plug rod. The lower end surface of the triangular base is fixedly installed with a supporting cross plate located below the trapezoidal through groove, the upper end surface of the supporting cross plate is fixedly installed with an electric push rod, the telescopic end of the electric push rod is fixedly installed with a triangular plate, the upper end surface of the triangular plate is fixedly installed with a connecting cross plate corresponding to the support seat and located directly below the support seat, and the upper end surface of the connecting cross plate is fixedly installed with a first plug rod corresponding one-to-one to the second slide rail.

[0012] As a preferred technical solution of the present invention, the alignment part includes an alignment ring and a second plug rod, the second plug rod is fixedly installed on the front side of the upper end face of the triangular plate, and the alignment ring that cooperates with the second plug rod is fixedly installed on the front end face inside the trapezoidal through groove.

[0013] As a preferred technical solution of the present invention, the pressing part includes a cylinder and a pressing plate. The cylinder is fixedly mounted on the equipment bracket, and the telescopic end of the cylinder is fixedly mounted with a pressing plate located above the trapezoidal through groove.

[0014] As a preferred technical solution of the present invention, the connecting part includes a fixed block and a hinged rod. The three sliding seats are fixedly installed with a fixed block at one end close to each other. The upper end surface of the fixed block is hinged with a hinged rod, and the upper end of the hinged rod is hinged to the lower end surface of the lower pressure plate.

[0015] As a preferred technical solution of the present invention, a slot cooperating with the corresponding first plug rod is opened at the lower end of the support seat, and a triangular pyramid is formed between the three hinged rods. The triangular plate uses the triangular base as a support point to provide triangular support for the support seats on both sides.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The automobile wiring harness terminal tension testing device, through the coordinated use of the fixing mechanism, the line-fixing mechanism and the testing mechanism, adopts an integrated operation model of limit fixation, triangular locking and synchronous stretching to complete the tension test of the terminal and the terminal of the multi-pin wiring harness, thereby realizing the precise tension test of the terminal of the multi-pin wiring harness. Through lateral positioning and upper limit locking, the stability of the terminal during the test is ensured, and the risk of accidental falling off of the terminal is reduced. At the same time, through the two-stage clamping fixation and triangular support, the tension applied to the terminal and each terminal is effectively dispersed, reducing the risk of cable damage. The synchronously pushed triangular pyramid design ensures the uniformity of the applied tension, improves the accuracy and reliability of the test, and finally realizes the safe, stable and effective tension test of the wiring harness terminal.

[0017] 2. The automobile wiring harness terminal tension test device, through the coordinated use of the fixing mechanism and the testing mechanism, adopts lateral positioning and upper limit locking before the tension test to complete the fixation of the terminal and the terminal, so as to effectively prevent the terminal from moving up and down or sideways due to the tension during the test, ensure that the terminal remains in a fixed position during the test, improve the stability of the test, and avoid the terminal from accidentally falling off during the test, ensuring the safety of the test.

[0018] 3. The automobile wiring harness terminal tension test device, through the coordinated use of the set line fixing mechanism and the test mechanism, implements two-section clamping and fixing of the multi-pin wiring harness cable before the tensile test. When the terminal and the terminal are stretched, the tension applied to the terminal and the terminal can be effectively dispersed to avoid excessive force on one side, thereby reducing the risk of cable damage. At the same time, triangular support is provided for the support seats for fixing the cables on both sides, providing stronger stability and carrying capacity, effectively preventing the cable from sinking or bending during the stretching process, ensuring that the tension is evenly distributed, thereby improving the effectiveness of the test.

[0019] 4. The automobile wiring harness terminal tension test device, through the set test mechanism, adopts a triangular pyramid form to synchronously push the summary terminal and the terminal to complete the tension test of the multi-pin summary wiring harness terminal, which can ensure that uniform tension is applied to the summary terminal and each terminal, avoiding local damage caused by uneven force, thereby ensuring the accuracy and reliability of the test, and the triangular pyramid can provide better support, so that the terminal and the wiring harness always remain stable during the test, reducing interference caused by vibration or other external factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention when it is working.

[0021] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the present invention.

[0022] Figure 3 It is a partially cutaway three-dimensional structural schematic diagram of the fixing mechanism of the present invention.

[0023] Figure 4 It is a schematic cross-sectional three-dimensional structural diagram of the line-fixing mechanism of the present invention.

[0024] Figure 5 It is a bottom-up stereoscopic structural schematic diagram of the stabilizing portion of the present invention.

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of a multi-pin wiring harness.

[0026] In the figure: 1, triangular base; 2, equipment bracket; 3, trapezoidal through groove; 4, fixing mechanism; 41, bearing part; 411, first slide rail; 412, slide seat; 413, positioning block; 42, limiting part; 421, limiting plate; 422, plug hole; 423, plug plate; 43, locking part; 431, sliding hole; 432, slide plate; 433, locking hole; 5, line setting mechanism; 51, clamping part; 511, support seat; 512, second Slide rail; 513, bidirectional screw; 514, clamping slider; 52, stabilizing part; 521, supporting horizontal plate; 522, electric push rod; 523, triangular plate; 524, connecting horizontal plate; 525, first plug rod; 53, alignment part; 531, alignment ring; 532, second plug rod; 6, testing mechanism; 61, pressing part; 611, cylinder; 612, pressing plate; 62, connecting part; 621, fixing block; 622, hinged rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1 A tensile testing device for automobile wiring harness terminals comprises a triangular base 1, an equipment bracket 2 is fixedly mounted on the upper end surface of the triangular base 1, a trapezoidal through groove 3 is penetrated through the upper end surface of the triangular base 1 and is located below the equipment bracket 2, and a fixing mechanism 4 is arranged on the triangular base 1; the fixing mechanism 4 comprises a bearing part 41 arranged on the triangular base 1 and used for loading the aggregate terminal and the terminal, a limiting part 42 for limiting the aggregate terminal and the terminal is arranged on the bearing part 41, and a locking part 43 for locking the limiting part 42 to fix the aggregate terminal and the terminal is also arranged on the bearing part 41.

[0029] See also Figure 1 A testing mechanism 6 is provided on the equipment bracket 2 for cooperating with the fixing mechanism 4 to synchronously push the aggregation terminal and the terminal in a triangular pyramid manner to test the tension of the multi-pin aggregation wiring harness, and a routing mechanism 5 is provided on the trapezoidal through groove 3 for dispersing the tension of the multi-pin aggregation wiring harness cable during the testing process of the testing mechanism 6.

[0030] See also Figure 1The wiring mechanism 5 includes a clamping portion 51 arranged on the trapezoidal through groove 3 and used to clamp and fix the cable of the multi-pin bundled wiring harness in two sections. The triangular base 1 is provided with a stabilizing portion 52 and an aligning portion 53 cooperating with the stabilizing portion 52 to provide a triangular structural support for the clamping portion 51; the testing mechanism 6 includes a pressing portion 61 arranged on the equipment bracket 2, and the pressing portion 61 is provided with a connecting portion 62 cooperating with the bearing portion 41.

[0031] See also Figure 1 , Figure 2 and Figure 3 The bearing portion 41 includes a first slide rail 411, a slide seat 412 and a positioning block 413. Three first slide rails 411 circumferentially distributed on the outside of the trapezoidal through groove 3 are fixedly installed on the upper end surface of the triangular base 1. The three first slide rails 411 are respectively located on the three mid-vertical lines of the triangular base 1. A slide seat 412 is slidably installed in the first slide rail 411, and a positioning block 413 for lateral limiting the aggregation terminal and the terminal is fixedly installed on the slide seat 412.

[0032] See also Figure 1 , Figure 2 and Figure 3 The limiting portion 42 includes a limiting plate 421, a socket 422 and a plug plate 423. The upper end surface of the positioning block 413 is hinged with a limiting plate 421 for limiting the summary terminal and the top of the terminal. The end of the limiting plate 421 away from the hinge point is slidably penetrated and installed with a plug plate 423. The cross section of the plug plate 423 is T-shaped. A first spring (not shown in the figure) is fixedly installed between the plug plate 423 and the limiting plate 421. The positioning block 413 is provided with a socket 422 for mating with the plug plate 423, and the lower end surface of the plug plate 423 is arc-shaped.

[0033] See also Figure 1 , Figure 2 and Figure 3 The locking portion 43 includes a sliding hole 431, a slide plate 432 and a locking hole 433. The outer wall of the positioning block 413 is provided with a sliding hole 431 that passes through it and is connected to the insertion hole 422. A slide plate 432 is slidably installed in the sliding hole 431. A second spring is fixedly installed between the slide plate 432 and the outer wall of the positioning block 413. The slide plate 432 and the plug plate 423 are perpendicular to each other. A side wall of the plug plate 423 close to the slide plate 432 is provided with a locking hole 433 that cooperates with the slide plate 432 and is plugged in.

[0034] During specific work, when it is necessary to perform a tensile test on the terminals of a multi-pin wiring harness, first place the terminal in the positioning block 413 of the rear slide 412 so that the positioning block 413 can laterally limit the terminal. Then, place the other terminals on the left and right slides 412 respectively so that the positioning blocks 413 at their upper ends can laterally limit the other terminals.

[0035] Next, taking the rear sliding seat 412 as an example, at this time, the limit plate 421 of the rear sliding seat 412 is rotated to cover the upper end surface of the summary terminal, and under the action of the second spring, the left end of the slide plate 432 is located in the insertion hole 422, and then the worker manually presses the plug plate 423 downward, so that the plug plate 423 slides into the insertion hole 422, and the arc at the lower end of the plug plate 423 will squeeze the slide plate 432 to the right, and when the plug plate 423 drops to the position corresponding to the locking hole 433 and the slide plate 432, under the action of the second spring, the slide plate 432 is inserted into the plug plate 423, thereby locking the plug plate 423 in the insertion hole 422, and the upper end of the plug plate 423 will fix the limit plate 421 on the upper end surface of the positioning block 413, thereby completing the limit fixation of the summary terminal, and then repeat the above operation to fix the other terminals, thereby completing the fixation of the summary terminal and the terminal through lateral positioning and upper limit locking to ensure that the terminal remains in a fixed position during testing.

[0036] When the terminal needs to be released, the worker first pushes the slide plate 432 to the right, at which time the lock on the plug plate 423 is released, and under the action of the first spring, the plug plate 423 slides upward and disengages from the socket 422, and then the limit plate 421 can be lifted to release the terminal.

[0037] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 The clamping portion 51 includes a support seat 511, a second slide rail 512, a bidirectional screw 513 and a clamping slider 514. The support seat 511 is fixedly installed with a left-right symmetrical support seat through a fixed seat in the trapezoidal through groove 3. A symmetrical second slide rail 512 is fixedly installed on one side of the upper end surface of the support seat 511 close to and away from the rear first slide rail 411. A bidirectional screw 513 is installed through the second slide rail 512 through a bearing. A symmetrical clamping slider 514 is slidably installed in the second slide rail 512 and is threadedly connected to the corresponding bidirectional screw 513.

[0038] See also Figure 1 , Figure 2 , Figure 4 and Figure 5The stabilizing portion 52 includes a supporting transverse plate 521, an electric push rod 522, a triangular plate 523, a connecting transverse plate 524 and a first plug rod 525. The lower end surface of the triangular base 1 is fixedly installed with a supporting transverse plate 521 located below the trapezoidal through groove 3, the upper end surface of the supporting transverse plate 521 is fixedly installed with an electric push rod 522, the telescopic end of the electric push rod 522 is fixedly installed with a triangular plate 523, the upper end surface of the triangular plate 523 is fixedly installed with a connecting transverse plate 524 corresponding to the support seat 511 and located directly below the support seat 511, the upper end surface of the connecting transverse plate 524 is fixedly installed with a first plug rod 525 corresponding to the second slide rail 512, the lower end of the support seat 511 is provided with a slot matching the corresponding first plug rod 525, and the triangular plate 523 uses the triangular base 1 as a support point to provide triangular support for the support seats 511 on both sides.

[0039] See also Figure 1 and Figure 2 The alignment portion 53 includes an alignment ring 531 and a second plug rod 532. The second plug rod 532 is fixedly installed on the front side of the upper end face of the triangular plate 523, and the alignment ring 531 that cooperates with the second plug rod 532 is fixedly installed on the front end face inside the trapezoidal through groove 3.

[0040] During the specific work, after the fixing mechanism 4 completes the fixation of the terminals, the cables between the aggregation terminals and the terminals are respectively located above the support seat 511, and then the worker holds an electric rotary tool to rotate the bidirectional screw 513, so that it brings the clamping sliders 514 on both sides close to each other and clamps and fixes the corresponding cables, and then repeats the operation to complete the fixation of the cables by other clamping sliders 514, so as to implement two-stage clamping and fixation of the multi-pin aggregation harness cable before the tensile test. When the test mechanism 6 stretches the aggregation terminals and terminals, it can effectively disperse the pulling force applied to the aggregation terminals and terminals to avoid excessive force on one side, thereby reducing the risk of cable damage.

[0041] After the cable is fixed by the clamping part 51, the electric push rod 522 is started to make it rise with the triangular plate 523, and the first plug rod 525 is inserted into the slot of the corresponding support seat 511, and the second plug rod 532 is simultaneously inserted into the alignment ring 531, so that the triangular plate 523 uses the triangular base 1 in a fixed state as a fulcrum to provide triangular support for the support seat 511 for fixing the cables on both sides, thereby providing stronger stability and load-bearing capacity for the tensile test of the testing mechanism 6.

[0042] See also Figure 1 and Figure 2 The pressing part 61 includes a cylinder 611 and a pressing plate 612 . The cylinder 611 is fixedly mounted on the equipment bracket 2 . The telescopic end of the cylinder 611 is fixedly mounted with a pressing plate 612 located above the trapezoidal through groove 3 .

[0043] See also Figure 1 and Figure 2 The connecting part 62 includes a fixed block 621 and a hinged rod 622. The ends of the three slide seats 412 close to each other are fixedly installed with a fixed block 621. The upper end surface of the fixed block 621 is hinged with a hinged rod 622. The upper ends of the hinged rods 622 are hinged to the lower end surface of the lower pressure plate 612. The three hinged rods 622 form a triangular pyramid.

[0044] During specific work, after the line-fixing mechanism 5 completes the fixation of the cable, the cylinder 611 is started to make it descend with the lower pressure plate 612, so that the three slides 412 are synchronously moved in the direction away from the trapezoidal through groove 3 through the hinge rod 622, so that the summary terminal and the terminal are synchronously pushed in the form of a triangular pyramid, thereby ensuring that uniform tension is applied to the summary terminal and each terminal, ensuring the accuracy and reliability of the test, and finally, the tension applied to each terminal can be judged according to the distance difference before and after the movement of the slide 412 or by a tensile gauge. If the terminal is cracked or deformed and cannot be used within a reasonable stretching range, it means that the tensile test of the multi-pin summary wiring harness terminal is unqualified, otherwise it is qualified, thereby completing the tensile test of the multi-pin summary wiring harness terminal.

[0045] See also Figure 1-6 Working principle: When a tensile test is required on the terminal of a multi-pin wiring harness, the terminal and the terminal are first placed in the positioning block 413, and then the limiting portion 42 and the locking portion 43 cooperate to limit and fix the terminal and the terminal.

[0046] Then the worker uses an electric rotary tool to rotate the bidirectional screw 513, so that it brings the clamping sliders 514 on both sides closer to each other and clamps and fixes the corresponding cables, thereby clamping and fixing the multi-pin bundled cables in two sections before the tensile test. Then, the electric push rod 522 is started to cooperate with the stabilizing part 52 and the positioning part 53 to use the fixed triangular base 1 as a fulcrum, providing triangular support for the support seat 511 that fixes the cables on both sides, thereby providing stronger stability and load-bearing capacity for the tensile test of the testing mechanism 6.

[0047] After the fixing mechanism 5 completes the fixing of the cable, the cylinder 611 is started to lower it with the lower pressure plate 612, thereby synchronously moving the three slides 412 away from the trapezoidal through groove 3 through the hinge rod 622, so that the aggregation terminal and the terminal are synchronously pushed in a triangular pyramid manner. If the terminal is cracked or deformed and cannot be used within a reasonable stretching range, it means that the tensile test of the multi-pin aggregation wiring harness terminal is unqualified, otherwise it is qualified, thereby completing the tensile test of the multi-pin aggregation wiring harness terminal.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tensile testing device for automobile wiring harness terminals, comprising a triangular base, characterized in that: The upper end surface of the triangular base is fixedly mounted with a device bracket, the upper end surface of the triangular base is penetrated by a trapezoidal through slot located below the device bracket, and a fixing mechanism is arranged on the triangular base; The fixing mechanism comprises a bearing part arranged on the triangular base and used for carrying the terminal and the terminal, the bearing part is provided with a limiting part for limiting the terminal and the terminal, and the bearing part is also provided with a locking part for locking the limiting part to limit and fix the terminal and the terminal; The bearing part includes a first slide rail, a slide seat and a positioning block, the slide seat is fixedly installed with a positioning block for lateral limiting the terminal and the terminal, the upper end surface of the triangular base is fixedly installed with three first slide rails distributed circumferentially outside the trapezoidal through groove, the three first slide rails are respectively located on the three mid-vertical lines of the triangular base, and the slide seat is slidably installed in the first slide rail; The equipment bracket is provided with a testing mechanism for cooperating with the fixing mechanism to synchronously push the aggregation terminal and the terminal in a triangular pyramid manner to test the tension of the multi-pin aggregation harness, and the trapezoidal through slot is provided with a routing mechanism for dispersing the tension of the multi-pin aggregation harness cable during the testing process of the testing mechanism; The wiring mechanism includes a clamping part arranged on the trapezoidal through slot and used to clamp and fix the cable of the multi-pin bundled wiring harness in two sections, and a stabilizing part and a positioning part cooperating with the stabilizing part to provide a triangular structural support for the clamping part are arranged on the triangular base; The clamping part includes a support seat, a second slide rail and a clamping slider, the trapezoidal through groove is fixedly installed with a left-right symmetrical support seat by a fixed seat, the upper end surface of the support seat is fixedly installed with a symmetrical second slide rail on one side close to and away from the rear first slide rail, and a symmetrical clamping slider is slidably installed in the second slide rail; The testing mechanism comprises a pressing part arranged on the equipment support, and a connecting part cooperating with the bearing part is arranged on the pressing part; The connecting part includes a fixed block and an articulated rod. The ends of the three slide seats close to each other are fixedly installed with a fixed block. The upper end surface of the fixed block is hinged with a hinged rod. The upper ends of the hinged rods are hinged to the lower end surface of the lower pressure plate; a triangular pyramid is formed between the three articulated rods.

2. The automobile wiring harness terminal tension test device according to claim 1, characterized in that: The limiting part includes a limiting plate, a plug hole and a plug plate. The upper end surface of the positioning block is hinged with a limiting plate for limiting the aggregate terminal and the upper part of the terminal. The end of the limiting plate away from the hinge point is slidably penetrated by a plug plate, and the cross-section of the plug plate is T-shaped. A first spring is fixedly installed between the plug plate and the limiting plate. The positioning block is provided with a plug hole for mating with the plug plate.

3. The automobile wiring harness terminal tension test device according to claim 2, characterized in that: The locking portion includes a sliding hole, a slide plate and a lock hole. The outer wall of the positioning block is provided with a sliding hole that passes through the sliding hole and is connected to the insertion hole. A slide plate is slidably installed in the sliding hole. A second spring is fixedly installed between the slide plate and the outer wall of the positioning block. The slide plate and the plug plate are perpendicular to each other. A lock hole that cooperates with the slide plate and is plugged into the plug plate is provided on one side wall of the plug plate close to the slide plate.

4. The automobile wiring harness terminal tension test device according to claim 1, characterized in that: A bidirectional screw is installed in the second slide rail through a bearing, and the clamping slider is threadedly connected with the corresponding bidirectional screw.

5. The automobile wiring harness terminal tension test device according to claim 1, characterized in that: The stabilizing part includes a supporting cross plate, an electric push rod, a triangular plate, a connecting cross plate and a first plug rod. The lower end surface of the triangular base is fixedly installed with a supporting cross plate located below the trapezoidal through groove, the upper end surface of the supporting cross plate is fixedly installed with an electric push rod, the telescopic end of the electric push rod is fixedly installed with a triangular plate, the upper end surface of the triangular plate is fixedly installed with a connecting cross plate corresponding to the supporting seat and located directly below the supporting seat, and the upper end surface of the connecting cross plate is fixedly installed with a first plug rod corresponding one-to-one to the second slide rail.

6. The automobile wiring harness terminal tension test device according to claim 5, characterized in that: The alignment part comprises an alignment ring and a second plug rod. The second plug rod is fixedly installed on the front side of the upper end face of the triangular plate, and the alignment ring which cooperates with the second plug rod is fixedly installed on the front end face inside the trapezoidal through groove.

7. The automobile wiring harness terminal tension test device according to claim 1, characterized in that: The pressing part comprises a cylinder and a pressing plate. The cylinder is fixedly mounted on the equipment bracket, and the telescopic end of the cylinder is fixedly mounted with a pressing plate located above the trapezoidal through groove.

8. The automobile wiring harness terminal tension test device according to claim 5, characterized in that: A slot that matches the corresponding first plug rod is provided at the lower end of the support seat, and the triangular plate uses the triangular base as a support point to provide triangular support for the support seats on both sides.

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