A tensile test device for automobile USB wire harness production and a use method thereof

Abstract

The application discloses a kind of automobile USB wire harness production tension test equipment and its use method, in which, a kind of automobile USB wire harness production tension test equipment, including support frame table, end fixed mechanism, winding detection mechanism and side top support component structure.A pair of side protection frame is fixedly installed on support frame table;End fixed mechanism includes support side table, fixed frame and plugging cover, multiple support column legs are installed below support frame table and support side table, storage groove is opened in fixed frame;Winding detection mechanism includes winding table, pulling frame, cover struts and support column, pulling handle is fixed on cover struts and multiple top-up components are provided;Side top support component structure includes limiting frame plate and rotary motor.The application improves the tension detection effect of USB wire harness by the setting of corresponding mechanism, so that the wire harness terminal will not fall off or break during the detection process, so as to not affect the tension detection data, and reduce the trouble for the detection personnel.

Description

Technical Field

[0001] This invention belongs to the field of wire harness testing technology, specifically relating to a tensile testing device for automotive USB wire harness production and its usage method. Background Technology

[0002] Automotive USB wiring harnesses, also known as low-voltage wires, differ from ordinary household wiring. Ordinary household wiring is made of single-core copper wire with a certain degree of rigidity, while automotive wiring harnesses are made of multi-core copper wire, some as thin as a hair. Several or even dozens of soft copper wires are wrapped in a plastic insulating tube (PVC), making them flexible and not easily broken. It consists of an insulating sheath, terminals, wires, and insulating wrapping material. For signal transmission security, tensile testing is required after the wiring harness is manufactured.

[0003] In existing technologies, tensile tests are typically conducted to test the connection and fixation of wire harnesses and terminals. This usually involves clamping the wire harness ends with a fixture and then pulling them to perform the test. However, this method makes it difficult to control the clamping force on the ends, which can easily lead to the ends falling off when the clamping loosens. Excessive clamping force can also damage the ends, affecting the wire harness tensile test and causing unnecessary trouble for users.

[0004] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a tensile testing device for automotive USB wiring harness production and its usage method.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a tensile testing device and its usage method for automotive USB wiring harness production, which can solve the problem that USB wiring harnesses are prone to detachment or end damage during tensile testing in the prior art.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution:

[0008] A tensile testing device for automotive USB wiring harness production includes: a support frame, an end fixing mechanism, a winding testing mechanism, and a side-top support assembly structure.

[0009] A pair of side protective frames are fixedly installed on the support frame platform;

[0010] The end fixing mechanism is installed on one side of the support frame. The end fixing mechanism includes a support side platform, a fixing frame, and a sealing cover. The support side platform is fixed to one end of the support frame. Multiple support columns are installed below the support frame and the support side platform. A storage groove is carved on the fixing frame. A limiting slide cavity is also carved on the fixing frame. A pair of support sliders are provided in the limiting slide cavity. An auxiliary clamp is fixedly connected to the upper end of each support slider. A double threaded rotating rod is rotatably connected to the fixing frame. The double threaded rotating rod is threadedly connected to the pair of auxiliary clamps.

[0011] The winding detection mechanism is located on the side of the support frame away from the support side. The winding detection mechanism includes a winding platform, a pull frame, a cover plate, and a support column. The pull frame is slidably mounted on the winding platform, and the support column passes through the winding platform. A pull handle and multiple clamping components are fixed to the cover plate.

[0012] The side-top support assembly structure is located below the rotating platform. The side-top support assembly structure includes a limiting frame plate and a rotary motor. The lower end of the support column is inserted into the limiting frame plate, and one end of the support column located in the limiting frame plate is fixedly connected to the rotary motor.

[0013] In one or more embodiments of the present invention, a plurality of auxiliary rollers are installed on one end of the pair of side protection frames near the winding table to assist in pulling the USB cable harness, reduce the friction between the cable harness and the side protection frame, and thus improve the accuracy of the tensile test.

[0014] The support frame has a constriction cavity for placing and installing the electric actuator and providing space for the extension and retraction of the piston actuator. The electric actuator is installed in the constriction cavity, and a piston actuator is mounted on the electric actuator. A detection push plate is fixedly installed at the end of the piston actuator away from the electric actuator. The extension and retraction of the piston actuator is controlled by the electric actuator, which in turn drives the detection push plate to push the support column, causing the support column to move to one side. This, in turn, drives the rotating stage and the pulling frame, causing the wire harness terminals of the pulling frame to be pulled, thereby achieving the effect of tensile testing.

[0015] In one or more embodiments of the present invention, the fixed frame is provided with a plurality of threaded holes, and the sealing cover is provided with a plurality of fastening bolts for fixing the sealing cover to the fixed frame. The sealing cover can be fixed to the fixed frame by the plurality of fastening bolts, thereby preventing the wire harness terminals in the storage slot from falling off, and thus facilitating pull tests.

[0016] In one or more embodiments of the present invention, a winding ring plate is fixedly installed on the winding platform. The winding ring plate has multiple grooves, so that multiple connecting wires in the USB cable harness can be placed in the grooves and then fixed. When the wires are pulled, the pulling force point will be changed.

[0017] A pair of limiting sliders are fixed on the pull frame to support it, preventing it from falling off and facilitating its up-and-down sliding. A semi-circular connecting plate is also fixed to one end of the pull frame, and a fastening screw is provided on the semi-circular connecting plate. One end of the fastening screw passes through the semi-circular connecting plate and is threadedly connected to the winding table. The fastening screw is threadedly connected to the winding table to fix the semi-circular connecting plate and the pull frame, preventing the pull frame from moving and thus ensuring that the wire harness terminals inside the pull frame will not fall off or move.

[0018] In one or more embodiments of the present invention, a pair of limiting grooves are chiseled on the winding table to provide space for the sliding of the limiting slider and to prevent the limiting slider from falling off, thereby preventing the pull frame from falling off.

[0019] A pair of limiting sliders are respectively slidably disposed in the limiting groove. A pull spring is fixedly connected between the limiting slider and the winding table. The limiting slider is pulled by the pull spring, so that after the limiting slider slides upward, it can be pulled back to its original position, thereby allowing the fastening screw to be aligned and screwed into the winding table.

[0020] In one or more embodiments of the present invention, a limiting cavity is further formed on the winding stage, and a limiting slide plate is slidably arranged in the limiting cavity. A linkage vertical rod is fixedly connected to the limiting slide plate, and the end of the linkage vertical rod away from the limiting slide plate is fixedly connected to the cover support plate. A push spring is fixedly connected between the limiting slide plate and the winding stage. The linkage vertical rod and the limiting slide plate can support the cover support plate to prevent it from falling off, and the cover support plate can be pulled up, which makes it convenient for the staff to place the scattered connecting wires of the USB cable harness into multiple grooves, and then control the cover support plate to descend to lock the connecting wires, which facilitates the rotation and winding of the cable.

[0021] In one or more embodiments of the present invention, the tightening assembly includes: a tightening bolt, a supporting plate, and a clamping protrusion. The tightening bolt is threadedly connected to the cover support plate; the supporting plate is rotatably connected to the tightening bolt, and a connector is fixedly connected between the tightening bolt and the supporting plate; the clamping protrusion is fixed to one side of the supporting plate, and by rotating the tightening bolt, the supporting plate is moved closer to the winding ring plate, thereby clamping the connecting wire in the groove by the clamping protrusion, thus fixing the connecting wire and facilitating the rotation and winding of the connecting wire.

[0022] In one or more embodiments of the present invention, a rotating screw is threadedly connected to the limiting frame plate, and a plurality of rotating handles are fixed to one end of the rotating screw. A side top arc plate is rotatably connected to the end of the rotating screw away from the rotating handles. A support bearing is fixedly connected between the side top arc plate and the rotating screw. By rotating the rotating screw, the side top arc plate is driven to slide, so that the side top arc plate no longer abuts against the support column, making it convenient for the detection push plate to push the support column to one side.

[0023] In one or more embodiments of the present invention, a rotary transmission ring is rotatably connected to the lower end of the support column, enabling the rotary transmission ring to drive the support column to rotate, which in turn causes the support column to drive the winding platform to rotate, facilitating the winding of the connecting wire and allowing the support column to rotate at an angle. This, in turn, causes the support column to drive the winding platform and the pulling frame to move, achieving the effect of pulling the wire harness terminal. A pair of ring plate clamps are fixed on the rotary transmission ring, and a connecting boss is fixed on the rotary transmission ring. A connecting shaft is fixedly connected to the lower end of the connecting boss, and the lower end of the connecting shaft is fixedly connected to the output shaft of a rotary motor. The rotary motor can drive the connecting shaft to rotate, thereby facilitating the rotation of the connecting boss, the rotary transmission ring, and the support column, providing power for winding the wire harness connecting wire.

[0024] A method for using a tensile testing device for automotive USB wiring harness production includes the following steps:

[0025] S1. When testing the connectivity between the terminal and the wire harness: First, place one end of the USB wire harness in the storage slot, and then use multiple fastening bolts to fix the sealing cover on top of the fixed frame to achieve the effect of fixing one end of the USB wire harness. No wire harness terminal is clamped. Then, place the wire harness between a pair of side protection frames.

[0026] S2. Then rotate the fastening screw so that the fastening screw no longer fixes the pull frame. At this time, slide the pull frame upward so that part of the pull frame can be moved above the winding platform, so that the unfixed end of the USB cable harness can be put into the pull frame. Then slide the pull frame downward so that the pull frame can hold one end of the cable harness in place.

[0027] S3. Then rotate the screw so that the side top arc plate is no longer attached to the support column. At this time, start the electric actuator and control the piston rod to extend. The piston rod pushes the detection push plate to push the support column outward. The support column moves with the rotating stage, which causes the pulling frame to move the wire harness terminal. This allows the wire harness and the wire harness terminal to be pulled. The pulling force of the wire harness is calculated by detecting the pushing force of the detection push plate and the time it takes for the wire harness terminal to disconnect from the wire harness.

[0028] S4. When testing the tension of the connecting wires inside the harness, first fix both ends of the USB harness in the fixed frame and the pull frame respectively, then pull the pull handle to move the cover support plate upward, and then place the connecting wires that are scattered inside the USB harness into multiple grooves respectively.

[0029] S5. Release the pull handle again. The push spring will drive the limit slide and cover plate to move downward, thereby locking the scattered connecting wires. Then, rotate the tightening bolt to drive the support plate to move. The support plate will drive the clamping protrusion to move, so that the clamping protrusion will lock the connecting wires in the groove, achieving the effect of fixing.

[0030] S6. Then start the rotary motor to drive the connecting shaft to rotate, which in turn drives the connecting boss and the rotary transmission ring to rotate. The rotary transmission ring then drives the support column and the winding platform to rotate, which in turn drives the fixed wire harness connection to rotate, so that the wire harness connection can be wound onto the winding ring plate, thereby pulling the wire harness connection and achieving the function of testing the pulling force of the connection.

[0031] Compared with the prior art, the present invention improves the tensile strength testing effect of USB cable harnesses by setting up corresponding mechanisms, so that the cable harness terminals will not fall off or break during the testing process, thus not affecting the tensile strength testing data and reducing unnecessary trouble for testing personnel. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a perspective view of a tensile testing device for automotive USB wiring harness production according to an embodiment of the present invention;

[0034] Figure 2 for Figure 1 The structural diagram shown at point A in the middle;

[0035] Figure 3 This is a cross-sectional view of a tensile testing device for automotive USB wiring harness production according to an embodiment of the present invention;

[0036] Figure 4 for Figure 3 The structural diagram shown at point B in the middle;

[0037] Figure 5 This is a partial structural diagram of the end fixing mechanism in one embodiment of the present invention;

[0038] Figure 6 This is a partial structural diagram of the support frame in one embodiment of the present invention;

[0039] Figure 7 This is a schematic diagram of the structure of the swirl table in one embodiment of the present invention;

[0040] Figure 8 This is a schematic diagram of the pull frame structure in one embodiment of the present invention;

[0041] Figure 9 This is a first cross-sectional view of the swivel stage in one embodiment of the present invention;

[0042] Figure 10 This is a second cross-sectional view of the swirl table in one embodiment of the present invention.

[0043] Figure 11 This is a schematic diagram of the clamping assembly in one embodiment of the present invention;

[0044] Figure 12 This is a partial structural diagram of the side-top support component structure in one embodiment of the present invention;

[0045] Figure 13 This is a schematic diagram of the structure of the rotating transmission ring in one embodiment of the present invention.

[0046] Explanation of key figure labels:

[0047] 1-Supporting frame, 101-Supporting column leg, 102-Side protection frame, 103-Auxiliary roller, 104-Detection push plate, 105-Piston push rod, 106-Electric push rod, 2-End fixing mechanism, 201-Supporting side platform, 202-Fixing frame, 203-Storage slot, 204-Sealing cover, 205-Fasting bolt, 206-Auxiliary clamping plate, 207-Double threaded rotating rod, 3-Wound detection mechanism, 301-Wounding table, 302-Pull frame, 303-Cover support plate, 304-Wounding ring plate, 305-Supporting column, 306-Semi-circular connecting plate, 307-Fasting screw, 308 -Limiting slider, 309-Limiting groove, 310-Pull spring, 311-Linkage vertical rod, 312-Limiting slide plate, 313-Pull handle, 314-Tightening assembly, 315-Supporting plate, 316-Clamping protrusion, 317-Tightening bolt, 318-Connector, 319-Push spring, 4-Side top support assembly structure, 401-Limiting frame plate, 402-Rotary motor, 403-Rotary screw, 404-Rotary handle, 405-Side top arc plate, 406-Supporting bearing, 407-Rotary transmission ring, 408-Ring plate clamp, 409-Connecting boss, 410-Connecting shaft. Detailed Implementation

[0048] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0049] like Figures 1-13 As shown, a tensile testing device for automotive USB wiring harness production according to an embodiment of the present invention includes: a support frame 1, an end fixing mechanism 2, a winding detection mechanism 3, and a side top support assembly structure 4.

[0050] like Figures 1-5 As shown, a pair of side guard frames 102 are fixedly installed on the support frame 1 to limit the USB cable harness. An end fixing mechanism 2 is installed on one side of the support frame 1. The end fixing mechanism 2 includes a support side platform 201, a fixing frame 202, and a sealing cover 204. The support side platform 201 is fixed to one end of the support frame 1, and a storage groove 203 is cut into the fixing frame 202. Multiple support legs 101 are installed below both the support frame 1 and the support side platform 201 to support them, ensuring their stability and preventing swaying or tilting.

[0051] like Figures 1-7 As shown, the winding detection mechanism 3 is located on the side of the support frame 1 away from the support side platform 201. The winding detection mechanism 3 includes a winding platform 301, a pull frame 302, a cover support plate 303, and a support column 305. The pull frame 302 is slidably mounted on the winding platform 301, and the support column 305 is installed through the winding platform 301. The cover support plate 303 is fixed with a pull handle 313 and multiple clamping components 314. The side top support assembly structure 4 is located below the winding platform 301. The side top support assembly structure 4 includes a limiting frame plate 401 and a rotary motor 402. The lower end of the support column 305 is inserted into the limiting frame plate 401, and one end of the support column 305 located in the limiting frame plate 401 is fixedly connected to the rotary motor 402. The rotary motor 402 is used to drive the support column 305 and the winding platform 301 to rotate, so that the winding platform 301 can wind the wire harness connecting wire.

[0052] Specifically, one end of the USB harness terminal is fixed by the sealing cover 204 and the fixing frame 202, then the harness is placed between a pair of side protection frames 102, and the other end of the harness terminal is fixed by the pulling frame 302. Then, the tension test of the harness terminal and the harness connecting wire is performed by rotating or tilting the winding table 301. When testing the tension of the harness connecting wire, the harness connecting wire is fixed by the cover support plate 303 and the clamping component 314, so that rotating the winding table 301 can pull multiple harness connecting wires.

[0053] Among them, a pair of side protection frames 102 are equipped with multiple auxiliary rollers 103 on one end near the winding table 301, which are used to assist in pulling the USB cable harness, reduce the friction between the cable harness and the side protection frame 102, and thus improve the accuracy of the tensile test.

[0054] like Figures 1-4 As shown, a shrinkage cavity is carved into the support frame 1 to house and install the electric actuator 106, and to provide space for the telescopic movement of the piston rod 105. The electric actuator 106 is housed within the shrinkage cavity, and the piston rod 105 is mounted on the electric actuator 106. A detection push plate 104 is fixedly mounted on the end of the piston rod 105 away from the electric actuator 106. The electric actuator 106 controls the telescopic movement of the piston rod 105, which in turn drives the detection push plate 104 to push the support column 305, causing the support column 305 to move to one side. This, in turn, drives the rotating stage 301 and the pulling frame 302, causing the wire harness terminal of the pulling frame 302 to be pulled, thereby achieving the effect of tensile testing.

[0055] like Figures 1-5 As shown, the fixing frame 202 has multiple threaded holes, and the sealing cover 204 is provided with multiple fastening bolts 205 for fixing the sealing cover 204 to the fixing frame 202. The multiple fastening bolts 205 can fix the sealing cover 204 to the fixing frame 202, thereby preventing the wire harness terminals in the storage slot 203 from falling off, and facilitating pull tests.

[0056] like Figures 1-5 As shown, a limiting cavity is also carved into the fixed frame 202, and a pair of supporting sliders are provided in the limiting cavity. Each supporting slider has an auxiliary clamping plate 206 fixedly connected to its upper end. A double-threaded rotating rod 207 is rotatably connected to the fixed frame 202. The double-threaded rotating rod 207 is threadedly connected to both the pair of auxiliary clamping plates 206, and the threads of the double-threaded rotating rod 207 and the pair of auxiliary clamping plates 206 are in opposite directions, so that when the double-threaded rotating rod 207 rotates, it can drive the pair of auxiliary clamping plates 206 to move away from or towards each other. Therefore, when it is necessary to test a single, dispersed connecting wire, it can be clamped by the pair of auxiliary clamping plates 206, thus facilitating individual testing.

[0057] like Figures 1-7 As shown, a winding ring plate 304 is fixedly installed on the winding stage 301. Multiple grooves are carved on the winding ring plate 304 so that multiple connecting wires in the USB cable harness can be placed in the grooves and then the connecting wires are fixed. When the wires are pulled, the pulling force point will be changed.

[0058] like Figures 1-8 As shown, a pair of limiting sliders 308 are fixed on the pull frame 302 to support it, preventing it from falling off and facilitating its vertical sliding. A semi-circular connecting plate 306 is also fixed to one end of the pull frame 302, and a fastening screw 307 is provided on the semi-circular connecting plate 306. One end of the fastening screw 307 passes through the semi-circular connecting plate 306 and is threadedly connected to the winding table 301. This threaded connection to the winding table 301 fixes the semi-circular connecting plate 306 and the pull frame 302, preventing the pull frame 302 from moving and ensuring that the wire harness terminals inside the pull frame 302 do not fall off or move.

[0059] like Figures 1-9 As shown, a pair of limiting grooves 309 are cut on the rotating platform 301 to provide space for the sliding of the limiting slider 308 and to prevent the limiting slider 308 from falling off, thereby preventing the pull frame 302 from falling off.

[0060] like Figures 1-9 As shown, a pair of limiting sliders 308 are slidably disposed within limiting grooves 309, and a tension spring 310 is fixedly connected between the limiting sliders 308 and the winding stage 301. The tension spring 310 pulls the limiting sliders 308, so that after the limiting sliders 308 slide upward, they can be pulled back to their original position, thereby allowing the fastening screws 307 to be aligned and screwed into the winding stage 301.

[0061] like Figures 1-13 As shown, a limiting cavity is also cut into the winding stage 301, and a limiting slide plate 312 is slidably installed in the limiting cavity. A linkage vertical rod 311 is fixedly connected to the limiting slide plate 312. The end of the linkage vertical rod 311 away from the limiting slide plate 312 is fixedly connected to the cover support plate 303. A push spring 319 is fixedly connected between the limiting slide plate 312 and the winding stage 301. The linkage vertical rod 311 and the limiting slide plate 312 can support the cover support plate 303 to prevent it from falling off, and also allow the cover support plate 303 to be pulled up, so that the staff can place the scattered connecting wires of the USB cable harness into multiple grooves, and then control the cover support plate 303 to descend and lock the connecting wires, making it easy to rotate and wind them.

[0062] like Figures 1-11As shown, the tightening assembly 314 includes a tightening bolt 317, a support plate 315, and a clamping protrusion 316. The tightening bolt 317 is threadedly connected to the cover support plate 303; the support plate 315 is rotatably connected to the tightening bolt 317, and a connector 318 is fixedly connected between the tightening bolt 317 and the support plate 315. The clamping protrusion 316 is fixed to one side of the support plate 315. By rotating the tightening bolt 317, the support plate 315 is moved, causing it to move closer to the winding ring plate 304. The clamping protrusion 316 then presses the connecting wire within the groove, thus fixing the connecting wire and facilitating the rotation and winding of the connecting wire.

[0063] like Figures 1-12 As shown, a rotating screw 403 is threadedly connected to the limiting frame plate 401. Multiple rotating handles 404 are fixed to one end of the rotating screw 403. A side top arc plate 405 is rotatably connected to the end of the rotating screw 403 away from the rotating handles 404. A support bearing 406 is fixedly connected between the side top arc plate 405 and the rotating screw 403. Rotating the rotating screw 403 causes the side top arc plate 405 to slide, thereby preventing the side top arc plate 405 from pressing against the support column 305, facilitating the detection push plate 104 to push the support column 305 to one side.

[0064] like Figures 1-13 As shown, a rotary transmission ring 407 is rotatably connected to the lower end of the support column 305, enabling the rotary transmission ring 407 to drive the support column 305 to rotate, which in turn causes the support column 305 to drive the winding platform 301 to rotate, facilitating the winding of the connecting wire. It also facilitates the oblique rotation of the support column 305, thereby causing the support column 305 to drive the winding platform 301 and the pulling frame 302 to move, achieving the effect of pulling the wire harness terminal. A pair of ring plate clamps 408 are fixed on the rotary transmission ring 407, and a connecting boss 409 is fixed on the rotary transmission ring 407. A connecting shaft 410 is fixedly connected to the lower end of the connecting boss 409, and the lower end of the connecting shaft 410 is fixedly connected to the output shaft of the rotary motor 402. The rotary motor 402 can drive the connecting shaft 410 to rotate, thereby facilitating the rotation of the connecting boss 409, the rotary transmission ring 407, and the support column 305, providing power for winding the wire harness connecting wire.

[0065] A method for using a tensile testing device for automotive USB wiring harness production includes the following steps:

[0066] S1. When testing the connectivity between the terminal and the wire harness: First, place one end of the USB wire harness in the storage slot 203, and then use multiple fastening bolts 205 to fix the sealing cover 204 on top of the fixing frame 202 to achieve the effect of fixing one end of the USB wire harness without clamping the wire harness terminal. Then, place the wire harness between a pair of side protection frames 102.

[0067] S2. Then rotate the fastening screw 307 so that the fastening screw 307 no longer fixes the pull frame 302. At this time, slide the pull frame 302 upward so that part of the pull frame 302 can be moved above the winding platform 301, so that the unfixed end of the USB cable harness can be put into the pull frame 302. Then slide the pull frame 302 downward so that the pull frame 302 locks one end of the cable harness.

[0068] S3. Then rotate the rotating screw 403 so that the side top arc plate 405 is no longer attached to the support column 305. At this time, start the electric push rod 106. The electric push rod 106 controls the piston push rod 105 to extend, which in turn pushes the detection push plate 104 to push the support column 305 outward. The support column 305 moves with the rotating stage 301, which causes the pulling frame 302 to move the wire harness terminal, thereby pulling the wire harness and the wire harness terminal. The pulling force of the wire harness is calculated by detecting the pushing force of the detection push plate 104 and the time when the wire harness terminal is disconnected from the wire harness.

[0069] S4. When testing the tension of the connecting wires inside the harness, first fix both ends of the USB harness in the fixed frame 202 and the pull frame 302 respectively. Then rotate the double threaded rod 207 to control a pair of auxiliary clamps 206 to move closer to each other. Then place the internal connecting wire to be tested between the pair of auxiliary clamps 206 and clamp it. Then pull the pull handle 313 to move the cover support plate 303 upward. Then place the connecting wires that are scattered inside the USB harness into multiple grooves respectively.

[0070] S5. Then release the pull handle 313. The push spring 319 will push the limiting slide plate 312 and the cover support plate 303 downward, thereby locking the scattered connecting wires. At this time, rotate the tightening bolt 317 to drive the support plate 315 to move. The support plate 315 will drive the clamping protrusion 316 to move, so that the clamping protrusion 316 will lock the connecting wires in the groove to achieve the effect of fixing.

[0071] S6. Then, start the rotary motor 402 to drive the connecting shaft 410 to rotate. The connecting shaft 410 will drive the connecting boss 409 and the rotary transmission ring 407 to rotate. The rotary transmission ring 407 will drive the support column 305 and the winding platform 301 to rotate. The winding platform 301 will drive the fixed wire harness connection to rotate, so that the wire harness connection wire can be wound onto the winding ring plate 304, thereby pulling the wire harness connection wire and realizing the function of testing the pulling force of the connection wire.

[0072] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tensile testing device for automotive USB wiring harness production, characterized in that, include: A support frame, on which a pair of side protective frames are fixedly installed; An end fixing mechanism is installed on one side of the support frame. The end fixing mechanism includes a support side platform, a fixing frame, and a sealing cover. The support side platform is fixed to one end of the support frame. Multiple support columns are installed below the support frame and the support side platform. A storage groove is carved on the fixing frame. A limiting slide cavity is also carved on the fixing frame. A pair of support sliders are provided in the limiting slide cavity. An auxiliary clamp is fixedly connected to the upper end of each support slider. A double threaded rotating rod is rotatably connected to the fixing frame. The double threaded rotating rod is threadedly connected to the pair of auxiliary clamps. A winding detection mechanism is located on the side of the support frame away from the support side platform. The mechanism includes a winding platform, a pull frame, a cover plate, and a support column. The pull frame is slidably mounted on the winding platform. The support column passes through the winding platform. The cover plate is fixed with a pull handle and multiple clamping components. Multiple auxiliary rollers are installed on the ends of the pair of side protection frames near the winding platform. A contraction cavity is carved into the support frame, and an electric push rod is installed within the contraction cavity. A piston push rod is mounted on the electric push rod, and a detection push plate is fixedly installed on the end of the piston push rod away from the electric push rod. A winding ring plate is fixedly installed on the winding platform. Multiple grooves are carved into the winding ring plate. A pair of limiting sliders are fixed to the pulling frame. A semi-circular connecting plate is also fixed to one end of the pulling frame. A fastening screw is provided on the semi-circular connecting plate, and one end of the fastening screw passes through the semi-circular connecting plate and is threadedly connected to the winding platform. A limiting cavity is also carved into the winding platform. A limiting slide plate is slidably installed within the limiting cavity. A linkage vertical rod is fixedly connected to the limiting slide plate. The end of the linkage vertical rod away from the limiting slide plate is fixedly connected to a cover support plate. A push spring is fixedly connected between the limiting slide plate and the winding platform. A side-top support assembly structure is disposed below the rotating stage. The side-top support assembly structure includes a limiting frame plate and a rotary motor. The lower end of the support column is inserted into the limiting frame plate. One end of the support column disposed in the limiting frame plate is fixedly connected to the rotary motor. A rotary transmission ring is rotatably connected to the lower end of the support column. A pair of ring plate clamps are fixed on the rotary transmission ring. A connecting boss is fixed on the rotary transmission ring. A connecting shaft is fixedly connected to the lower end of the connecting boss. The lower end of the connecting shaft is fixedly connected to the output shaft of the rotary motor.

2. The tensile testing equipment for automotive USB wiring harness production according to claim 1, characterized in that, The fixed frame has multiple threaded holes, and the sealing cover is provided with multiple fastening bolts for fixing the sealing cover to the fixed frame.

3. The tensile testing equipment for automotive USB wiring harness production according to claim 2, characterized in that, A pair of limiting grooves are carved on the winding platform, and a pair of limiting sliders are respectively slidably disposed in the limiting grooves. A tension spring is fixedly connected between the limiting sliders and the winding platform.

4. The tensile testing equipment for automotive USB wiring harness production according to claim 3, characterized in that, The clamping assembly includes: Tighten the bolts, which are threaded onto the cover support plate; The support plate is rotatably connected to the tightening bolt, and a connecting piece is fixedly connected between the tightening bolt and the support plate; and The clamping protrusion is fixed to one side of the support plate.

5. The tensile testing equipment for automotive USB wiring harness production according to claim 4, characterized in that, A rotating screw is threadedly connected to the limiting frame plate. Multiple rotating handles are fixed to one end of the rotating screw. A side top arc plate is rotatably connected to the end of the rotating screw away from the rotating handles. A support bearing is fixedly connected between the side top arc plate and the rotating screw.

6. The method of using the tensile testing equipment for automotive USB wiring harness production according to claim 5, characterized in that, Includes the following steps: S1. When testing the connectivity between the terminal and the wire harness: First, place one end of the USB wire harness in the storage slot, and then use multiple fastening bolts to fix the sealing cover on top of the fixed frame to achieve the effect of fixing one end of the USB wire harness. No wire harness terminal is clamped. Then, place the wire harness between a pair of side protection frames. S2. Then rotate the fastening screw so that the fastening screw no longer fixes the pull frame. At this time, slide the pull frame upward so that part of the pull frame can be moved above the winding platform, so that the unfixed end of the USB cable harness can be put into the pull frame. Then slide the pull frame downward so that the pull frame can hold one end of the cable harness in place. S3. Then rotate the screw so that the side top arc plate is no longer attached to the support column. At this time, start the electric actuator and control the piston rod to extend. The piston rod pushes the detection push plate to push the support column outward. The support column moves with the rotating stage, which causes the pulling frame to move the wire harness terminal. This allows the wire harness and the wire harness terminal to be pulled. The pulling force of the wire harness is calculated by detecting the pushing force of the detection push plate and the time it takes for the wire harness terminal to disconnect from the wire harness. S4. When testing the tension of the connecting wires inside the harness, first fix both ends of the USB harness in the fixed frame and the pull frame respectively, then pull the pull handle to move the cover support plate upward, and then place the connecting wires that are scattered inside the USB harness into multiple grooves respectively. S5. Release the pull handle again. The push spring will drive the limit slide and cover plate to move downward, thereby locking the scattered connecting wires. Then, rotate the tightening bolt to drive the support plate to move. The support plate will drive the clamping protrusion to move, so that the clamping protrusion will lock the connecting wires in the groove, achieving the effect of fixing. S6. Then start the rotary motor to drive the connecting shaft to rotate, which in turn drives the connecting boss and the rotary transmission ring to rotate. The rotary transmission ring then drives the support column and the winding platform to rotate, which in turn drives the fixed wire harness connection to rotate, so that the wire harness connection can be wound onto the winding ring plate, thereby pulling the wire harness connection and achieving the function of testing the pulling force of the connection.

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