A terminal tension test device

Abstract

The present invention relates to the technical field of tension testing devices, specifically a terminal tension testing device, including a test bench, a tensile tester, a wire crimping terminal and a wire, wherein the upper surface of the test bench is fixedly connected with a first bracket, the upper surface of the test bench is fixedly connected with a second bracket, the wire crimping terminal and the wire are fixedly connected, and further comprising: a pulling structure arranged between the first bracket and the second bracket, for making the wire crimping terminal and the wire fall off quickly after the test is completed, the pulling structure comprising a fixing plate whose two ends are respectively fixedly connected to the first bracket and the second bracket. In the present invention, by arranging the pulling structure, when the wire and the wire crimping terminal are broken, the wire crimping terminal can slide off the arc surface of the draw hook by its own weight, and the two clamps can move in a direction away from each other to release the limit on the wire, so that there is no need to manually release the limit on the wire crimping terminal and the wire after the test is completed, thereby improving the convenience and efficiency during the test.

Description

Technical Field

[0001] The invention relates to the technical field of tension testing devices, and in particular to a tension testing device for a wiring terminal. Background Art

[0002] Terminal blocks are usually used for electrical connections. They are usually made of metal to provide connections for electrical signals or power. Among them, there is a type of crimping terminal that establishes a connection by clamping the wire inside the crimping terminal. When producing crimping terminals, a tensile testing device is required to pull the crimping terminal and the wire to test the tensile performance and connection strength of the crimping terminal and the wire.

[0003] A patent document with publication number CN212483141U has appeared in the prior art, which discloses a clamp for tensile testing of automobile wiring harness terminals, comprising a main body, a tensile gauge is fixedly connected to the left side of the upper surface of the main body, a slide groove is opened in the middle of the upper surface of the main body, the right end of the tensile gauge is movably connected to a pull rod, the inner cavity of the slide groove is movably connected to a clamping platform, and the left surface of the clamping platform is fixedly connected to the other end of the pull rod, a first sliding bolt is fixedly connected to the upper side of the front face of the clamping platform, a second sliding bolt is fixedly connected to the lower side of the front face of the clamping platform, the outer surface of the first sliding bolt is rotatably connected to a first clamping arm, the outer surface of the second sliding bolt is rotatably connected to a second clamping arm, the first clamping arm and the second clamping arm are connected through a fixing screw. This new solution can realize the tension measurement of wiring harnesses of different specifications, the operation process is simple, and the data is intuitive and accurate.

[0004] The above-mentioned and prior art technologies have the following defects: during the tensile test of the terminal blocks, it is necessary to rotate the screw to fix the terminal blocks and the wires before the test, and after the test is completed, it is necessary to rotate the screw again to release the fixation of the terminal blocks and the wires. The operation process is relatively time-consuming, which reduces the testing efficiency of the terminal blocks.

[0005] Therefore, a terminal tension test device is proposed. Summary of the invention

[0006] The purpose of the present invention is to solve the disadvantage that after the test is completed, a screw needs to be rotated to release the fixation of the wiring terminal and the wire, and the operation process is relatively time-consuming, and a wiring terminal tension test device is proposed.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a terminal tension test device, comprising a test bench, a tensile tester, a wire crimping terminal and a wire, wherein the upper surface of the test bench is fixedly connected to a first bracket, the upper surface of the test bench is fixedly connected to a second bracket, the wire crimping terminal and the wire are fixedly connected, and further comprising: a pulling structure arranged between the first bracket and the second bracket, for quickly dropping the wire crimping terminal and the wire after the test is completed, the pulling structure comprising a fixing plate fixedly connected to the first bracket and the second bracket at both ends, and a A slide plate, a hook for limiting the position of the crimping terminal, two clamps for limiting the position of the wire, and a top block for keeping the two clamps away from each other; a buffer structure arranged on the upper surface of the test bench for reducing the sliding distance of the tensile gauge, the buffer structure comprising a fixed tube fixedly mounted on the upper surface of the test bench, and a rough plate for buffering the slide plate; a protective structure arranged on the surface of the fixed plate for preventing the crimping terminal and the wire from being thrown out to the surroundings after breaking, the protective structure comprising a semicircular frame fixedly mounted on the surface of the fixed plate, and a protective plate for shielding the crimping terminal and the wire.

[0008] The effects achieved by the above components are as follows: by setting a pulling structure, when the wire and the crimping terminal are broken, the crimping terminal can slide off the arc surface of the pull hook with the help of its own weight, and the two clamps can move away from each other to release the limit on the wire, so that there is no need to manually release the limit on the crimping terminal and the wire after the test is completed, thereby improving the convenience and efficiency of the test; by setting a buffer structure, when the tensile tester moves due to inertia after the wire and the crimping terminal are broken, the movement of the slide plate will contact the rough plate, and the friction between the rough plate and the slide plate can buffer the slide plate, and then can buffer the tensile tester to prevent the tensile tester from being damaged by inertia colliding with other components; by setting a protective structure, when the wire and the crimping terminal are broken, the protective plate and the semicircular frame can prevent the wire and the crimping terminal from being thrown around and injuring people, thereby improving the safety during the test.

[0009] Preferably, the slide plate is slidably connected to the fixed plate, the slide plate is fixedly connected to the tensile meter, the surface of the first bracket is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a wire drum, the arc surface of the wire drum is wound with a drawstring, one end of the drawstring is fixedly connected to the slide plate, the draw hook is obliquely fixedly installed on the surface of the second bracket, the draw hook is snap-connected with the wire pressing terminal, the surface of the tensile meter is fixedly connected to a bending plate, the surface of the bending plate is slidably connected to an L-shaped plate, the inner wall of the L-shaped plate is slidably connected to a clamping plate, and the lower surface of the clamping plate is threadedly connected to a screw A threaded rod, one end of the threaded rod is rotatably connected to a clamping plate, the clamping plate is slidably connected to a card plate, a rectangular plate is slidably penetrated in the L-shaped plate, a groove is provided on the surface of the rectangular plate, a cylindrical block is fixedly connected to the surface of the card plate, the groove is slidably connected to the cylindrical block, the top block is fixedly connected to the bending plate, the cross-section of the hook is "J" shaped, the wire is located between the two clamping plates, the friction force between the fixed plate and the slide plate is greater than the friction force between the bending plate and the L-shaped plate, two first springs are fixedly connected to the inner wall of the L-shaped plate, and one end of the first spring is fixedly connected to the card plate.

[0010] The effects achieved by the above components are: turn on the servo motor, and the rotation of the output end of the servo motor will drive the wire drum to rotate, and when the wire drum rotates, the draw belt will be reeled in, and the draw belt will drive the slide plate to slide along the inner wall of the fixed plate, and the sliding of the slide plate will drive the tensile gauge to move, and the movement of the tensile gauge will drive the bending plate to move, and the bending plate will drive the L-shaped plate to move synchronously after moving a certain distance, and the movement of the L-shaped plate will drive the card plate to move, and the threaded rod will drive the splint to move with the help of the card plate, and the movement of the splint will pull the wire. At this time, the tensile strength between the wire and the crimping terminal can be observed with the help of the tensile gauge. When the wire and the crimping terminal are broken, the tensile gauge and other components will slide toward the direction close to the servo motor due to inertia. Due to the friction between the fixed plate and the slide plate The friction force is greater than the friction force between the bending plate and the L-shaped plate. Therefore, after the tensile gauge slides a distance, the sliding speed of the bending plate will be lower than the sliding speed of the L-shaped plate. At this time, the L-shaped plate will drive the rectangular plate to slide in the direction close to the top block. The sliding of the rectangular plate will contact the inclined surface of the top block. The top block will squeeze the rectangular plate to make the rectangular plate slide upward, and the first spring will begin to stretch. The two clamping plates will respectively use the tension of the two first springs to drive the two threaded rods to move away from each other. The movement of the threaded rod will drive the clamping plate to move, thereby releasing the limit on the wire, so the wire can fall off automatically. At the same time, since the pull hook is tilted on the surface of the second bracket, the wire crimping terminal can slide off from the arc surface of the pull hook with the help of its own weight.

[0011] Preferably, the vertical cross-section of the top block is a right-angled trapezoid.

[0012] The effect achieved by the above components is that the top block with a right-angle trapezoidal vertical section can make the rectangular plate slide upward after contacting with the rectangular plate.

[0013] Preferably, the groove consists of an upper groove and a lower groove, the vertical cross-section of the upper groove of the groove is rectangular, and the vertical cross-section of the lower groove of the groove is an isosceles trapezoid.

[0014] The effect achieved by the above components is: when the cylindrical block is located in the lower groove of the groove, since the vertical cross-section of the lower groove of the groove is an isosceles trapezoid, the groove will release the limitation on the cylindrical block. When the cylindrical block contacts the inner wall of the upper groove of the groove, the upper groove of the groove can limit the position of the cylindrical block, thereby limiting the position of the clamping plate, making it convenient to use the clamping plate to clamp and fix the wire.

[0015] Preferably, a leaf spring is fixedly connected to the surface of the rectangular plate, one end of the leaf spring is fixedly connected to the L-shaped plate, and the elastic force of the leaf spring is greater than the sum of the elastic forces of the two first springs.

[0016] The effect achieved by the above components is: since the elastic force of the leaf spring is greater than the sum of the elastic forces of the two first springs, when the leaf spring contracts, the rectangular plate will slide downward with the help of the pulling force of the leaf spring.

[0017] Preferably, a connecting rod is slidably connected to the inner wall of the fixed tube, the upper end of the connecting rod is fixedly connected to the rough plate, the arc surface of the fixed tube is sleeved with a second spring, and the two ends of the second spring are respectively fixedly connected to the test bench and the rough plate.

[0018] The effects achieved by the above components are as follows: the sliding plate will come into contact with the rough plate when it moves, and the rough plate will drive the connecting rod to slide downward due to the extrusion. The sliding of the rough plate will also compress the second spring, and the second spring will increase the friction between the rough plate and the sliding plate with the help of its own elastic force, thereby improving the buffering effect of the rough plate on the sliding plate, and then being able to buffer the tensile meter, preventing the tensile meter from being damaged due to inertia colliding with other components.

[0019] Preferably, a strip plate is fixedly connected to the surface of the rough plate, a rectangular sleeve is slidably connected to the surface of the strip plate, a pressure wheel is rotatably connected to the surface of the rectangular sleeve, and the pressure wheel is slidably connected to the drawstring.

[0020] The effect achieved by the above components is: the pressure wheel can always squeeze the drawstring by its own weight, so that the drawstring is in a tensioned state, preventing the drawstring from being loose, making it difficult to reel the drawstring normally, and causing the drawstring to fall off the arc surface of the drawstring.

[0021] Preferably, the connecting rod is in the shape of a regular hexagonal prism.

[0022] The effect achieved by the above components is that the connecting rod in the form of a regular hexagonal prism structure can limit the moving path of the rough plate, thereby limiting the moving path of the pressing wheel, and ensuring that the pressing wheel can normally contact the drawstring.

[0023] Preferably, the protective plate is slidably connected to the semicircular frame, and a plurality of rubber strips are fixedly connected to the inner arc surface of the protective plate.

[0024] The effect achieved by the above components is that the rubber strip can reduce the damage to the protective plate caused by impact, thereby preventing the protective plate from deforming and being unable to slide normally.

[0025] Preferably, a pull plate is fixedly connected to the inner arc surface of the protective plate, and the vertical cross-section of the pull plate is arc-shaped.

[0026] The effect achieved by the above components is: by pulling the pull plate, the pull plate will drive the protective plate to slide along the inner wall of the semicircular frame, and the pull plate can facilitate the rotation of the protective plate.

[0027] Compared with the prior art, the advantages and positive effects of the present invention are:

[0028] 1. In the present invention, by providing a pulling structure, when the wire and the crimping terminal are broken, the crimping terminal can slide off the arc surface of the draw hook by its own weight, and the two clamping plates can move away from each other to release the limit on the wire, so that there is no need to manually release the limit on the crimping terminal and the wire after the test is completed, thereby improving the convenience and efficiency of the test.

[0029] 2. In the present invention, by providing a buffer structure, when the tensile gauge moves due to inertia after the wire and the crimping terminal are broken, the slide plate moves and contacts the rough plate. The friction between the rough plate and the slide plate can buffer the slide plate, and then buffer the tensile gauge, preventing the tensile gauge from being damaged by inertia when it hits other components.

[0030] 3. In the present invention, by providing a protective structure, when the wire and the crimping terminal are broken, the protective plate and the semicircular frame can prevent the wire and the crimping terminal from being thrown around and injuring people, thereby improving the safety during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the first bracket and the second bracket of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the conductor of the present invention;

[0034] Figure 4 It is a schematic diagram of the structure of the bent plate of the present invention;

[0035] Figure 5 It is a schematic diagram of the split structure at the bent plate of the present invention;

[0036] Figure 6 It is a structural schematic diagram of the second bracket of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the card board of the present invention;

[0038] Figure 8 It is a structural schematic diagram of the buffer structure of the present invention;

[0039] Fig. 9 It is a schematic diagram of the planar structure of the first bracket of the present invention;

[0040] Fig.10 It is a structural schematic diagram of the protective plate of the present invention.

[0041] Legend: 1. Test bench; 2. First bracket; 3. Second bracket; 4. Tensile force meter; 5. Wire crimping terminal; 6. Wire; 7. Pulling structure; 701. Fixed plate; 702. Slide plate; 703. Servo motor; 704. Wire drum; 705. Pull belt; 706. Draw hook; 707. Bending plate; 708. L-shaped plate; 709. Card plate; 710. Threaded rod; 711. Clamp plate; 712. Rectangular plate; 713. Groove; 714. Cylindrical block; 715. Top block; 716. First spring; 717. Leaf spring; 8. Buffer structure; 81. Fixed tube; 82. Connecting rod; 83. Rough plate; 84. Second spring; 85. Strip plate; 86. Rectangular sleeve; 87. Press wheel; 9. Protective structure; 91. Semicircular frame; 92. Protective plate; 93. Rubber strip; 94. Pull plate. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0044] like Figure 1-Figure 10As shown, the present invention provides a terminal tension test device, including a test bench 1, a tension meter 4, a wire crimping terminal 5 and a wire 6, wherein a first bracket 2 is fixedly connected to the upper surface of the test bench 1, a second bracket 3 is fixedly connected to the upper surface of the test bench 1, the wire crimping terminal 5 and the wire 6 are fixedly connected, and further comprising: a pulling structure 7 arranged between the first bracket 2 and the second bracket 3, and used to quickly remove the wire crimping terminal 5 and the wire 6 after the test is completed, the pulling structure 7 comprises a fixing plate 701 whose two ends are respectively fixedly connected to the first bracket 2 and the second bracket 3, a sliding plate 702 for driving the tension meter 4 to move, and a pulling hook 703 for limiting the position of the wire crimping terminal 5. 06. Two clamps 711 for limiting the conductor 6, and a top block 715 for keeping the two clamps 711 away from each other; a buffer structure 8 arranged on the upper surface of the test bench 1 for reducing the sliding distance of the tensile gauge 4, the buffer structure 8 includes a fixed tube 81 fixedly installed on the upper surface of the test bench 1, and a rough plate 83 for buffering the slide plate 702; a protective structure 9 arranged on the surface of the fixed plate 701 for preventing the wire crimping terminal 5 and the wire 6 from being thrown out to the surrounding after breaking, the protective structure 9 includes a semicircular frame 91 fixedly installed on the surface of the fixed plate 701, and a protective plate 92 for shielding the wire crimping terminal 5 and the wire 6.

[0045] The specific configuration and functions of the pulling structure 7, the buffer structure 8 and the protective structure 9 are described in detail below.

[0046] like Figure 2-Figure 7As shown, the slide plate 702 is slidably connected to the fixed plate 701, the slide plate 702 is fixedly connected to the tensile meter 4, the surface of the first bracket 2 is fixedly connected to the servo motor 703, the output end of the servo motor 703 is fixedly connected to the wire drum 704, the arc surface of the wire drum 704 is wound with a drawstring 705, one end of the drawstring 705 is fixedly connected to the slide plate 702, the servo motor 703 is turned on, the output end of the servo motor 703 rotates to drive the wire drum 704 to rotate, and the drawstring 705 is wound when the wire drum 704 rotates, and the drawstring 705 drives the slide plate 702 to slide along the inner wall of the fixed plate 701, and the sliding of the slide plate 702 drives the tensile meter 4 to move, and the draw hook 706 is tilted and fixedly installed on the surface of the second bracket 3, and the draw hook 706 is engaged with the wire pressing terminal 5. The surface of the tensile gauge 4 is fixedly connected with a bending plate 707, and the surface of the bending plate 707 is slidably connected with an L-shaped plate 708, and the inner wall of the L-shaped plate 708 is slidably connected with a clamping plate 709, and the lower surface of the clamping plate 709 is threadedly connected with a threaded rod 710, one end of the threaded rod 710 is rotatably connected with a clamping plate 711, and the clamping plate 711 is slidably connected with the clamping plate 709. The movement of the tensile gauge 4 will drive the bending plate 707 to move, and the bending plate 707 will drive the L-shaped plate 708 to move synchronously after moving a certain distance. The movement of the L-shaped plate 708 will drive the clamping plate 709 to move, and the threaded rod 710 will drive the clamping plate 711 to move with the help of the clamping plate 709. A rectangular plate 712 slides through the L-shaped plate 708, and a groove 713 is provided on the surface of the rectangular plate 712. The clamping plate 70 9 is fixedly connected with a cylindrical block 714, the groove 713 is slidably connected with the cylindrical block 714, the top block 715 is fixedly connected with the bending plate 707, the cross section of the hook 706 is "J" shaped, the wire 6 is located between the two clamping plates 711, the friction between the fixed plate 701 and the slide plate 702 is greater than the friction between the bending plate 707 and the L-shaped plate 708, the inner wall of the L-shaped plate 708 is fixedly connected with two first springs 716, one end of the first spring 716 is fixedly connected with the clamping plate 709, the movement of the clamping plate 711 will pull the wire 6, at this time, the tensile strength between the wire 6 and the wire pressing terminal 5 can be observed with the help of the tensile meter 4, when the wire 6 and the wire pressing terminal 5 are broken, the tensile meter 4 and other components will slide towards the direction close to the servo motor 703 due to inertia. , since the friction force between the fixed plate 701 and the slide plate 702 is greater than the friction force between the bending plate 707 and the L-shaped plate 708, the sliding speed of the bending plate 707 will be lower than the sliding speed of the L-shaped plate 708 after the tensile meter 4 slides for a distance. At this time, the L-shaped plate 708 will drive the rectangular plate 712 to slide in the direction close to the top block 715. The sliding of the rectangular plate 712 will contact the inclined surface of the top block 715. The top block 715 will squeeze the rectangular plate 712 to make the rectangular plate 712 slide upward, and the first spring 716 will begin to stretch. The two clamping plates 709 will respectively use the tension of the two first springs 716 to drive the two threaded rods 710 to move away from each other. The movement of the threaded rod 710 will drive the clamping plate 711 to move, thereby releasing the limit on the wire 6.Therefore, the wire 6 can fall off automatically, and because the hook 706 is tilted on the surface of the second bracket 3, the wire pressing terminal 5 can slide off the arc surface of the hook 706 by its own weight.

[0047] like Figure 2-Figure 7 As shown, the vertical section of the top block 715 is a right-angled trapezoid. The top block 715 with a right-angled trapezoidal vertical section can make the rectangular plate 712 slide upward after contacting with the rectangular plate 712. The groove 713 is composed of an upper groove and a lower groove. The vertical section of the upper groove of the groove 713 is rectangular, and the vertical section of the lower groove of the groove 713 is an isosceles trapezoid. When the cylindrical block 714 is located in the lower groove of the groove 713, since the vertical section of the lower groove of the groove 713 is an isosceles trapezoid, the groove 713 will release the restriction on the cylindrical block 714. When the cylindrical block 714 and the upper groove of the groove 713 are in contact, the vertical section of the cylindrical block 714 and the lower groove of the groove 713 are in contact. After the inner wall contacts, the upper groove of the groove 713 can limit the position of the cylindrical block 714, thereby limiting the position of the clamping plate 709, making it convenient to use the clamping plate 711 to clamp and fix the wire 6. A leaf spring 717 is fixedly connected to the surface of the rectangular plate 712, and one end of the leaf spring 717 is fixedly connected to the L-shaped plate 708. The elastic force of the leaf spring 717 is greater than the sum of the elastic forces of the two first springs 716. Since the elastic force of the leaf spring 717 is greater than the sum of the elastic forces of the two first springs 716, when the leaf spring 717 contracts, the rectangular plate 712 will slide downward with the help of the pulling force of the leaf spring 717.

[0048] like Figure 8 As shown, the inner wall of the fixed tube 81 is slidably connected with a connecting rod 82, the upper end of the connecting rod 82 is fixedly connected to the rough plate 83, the arc surface of the fixed tube 81 is sleeved with a second spring 84, the two ends of the second spring 84 are respectively fixedly connected to the test bench 1 and the rough plate 83, the movement of the slide plate 702 will contact the rough plate 83, the rough plate 83 will drive the connecting rod 82 to slide downward due to the extrusion, the sliding of the rough plate 83 will also compress the second spring 84, the second spring 84 will increase the friction between the rough plate 83 and the slide plate 702 by its own elastic force, thereby improving the buffering effect of the rough plate 83 on the slide plate 702, and then being able to buffer the tensile meter 4, and prevent the tensile meter 4 from being damaged due to inertia collision with other components. The surface of the rough plate 83 is fixedly connected to a strip plate 85, the surface of the strip plate 85 is slidably connected to a rectangular sleeve 86, the surface of the rectangular sleeve 86 is rotatably connected to a pressure wheel 87, the pressure wheel 87 is slidably connected to the draw belt 705, the pressure wheel 87 can always squeeze the draw belt 705 by its own weight, so that the draw belt 705 is in a tensioned state, to prevent the draw belt 705 from being loose, which makes it difficult for the wire drum 704 to normally reel up the draw belt 705, and the draw belt 705 from falling off the arc surface of the wire drum 704, the connecting rod 82 is a regular hexagonal prism structure, the connecting rod 82 with a regular hexagonal prism structure can limit the moving path of the rough plate 83, thereby limiting the moving path of the pressure wheel 87, and ensuring that the pressure wheel 87 can normally contact the draw belt 705.

[0049] like Fig. 9 and Fig.10 As shown, the protective plate 92 is slidably connected to the semicircular frame 91, and a plurality of rubber strips 93 are fixedly connected to the inner arc surface of the protective plate 92. The rubber strips 93 can reduce the damage to the protective plate 92 caused by impact, thereby preventing the protective plate 92 from deforming and being unable to slide normally. The inner arc surface of the protective plate 92 is fixedly connected to a pull plate 94, and the vertical cross-section of the pull plate 94 is arc-shaped. When the pull plate 94 is pulled, the pull plate 94 will drive the protective plate 92 to slide along the inner wall of the semicircular frame 91, and the pull plate 94 can facilitate the rotation of the protective plate 92.

[0050] The overall working principle is that when testing the crimping terminal 5 and the wire 6, the crimping terminal 5 is sleeved on the arc surface of the hook 706. At this time, the hook 706 with a "J"-shaped cross section can limit the position of the crimping terminal 5, and then tighten the wire 6 so that one end of the wire 6 is located between the two clamping plates 711, and then the two threaded rods 710 are rotated respectively. The threaded rod 710 will drive the clamping plate 711 to slide along the surface of the clamping plate 709 with the help of the thread. When the two clamping plates 711 clamp the wire 6, the position of the wire 6 can be fixed, and then the pull plate 94 is pulled. The pull plate 94 will drive the protective plate 92 to slide along the inner wall of the semicircular frame 91. The pull plate 94 can facilitate the rotation of the protective plate 92. When the protective plate 92 and the semicircular frame 91 are aligned with the wire 6, the protective plate 92 and the semicircular frame 91 are aligned with the wire 6. After the crimping terminal 5 is blocked, the servo motor 703 is turned on, and the output end of the servo motor 703 rotates to drive the wire drum 704 to rotate. When the wire drum 704 rotates, the draw belt 705 is rolled up, and the draw belt 705 drives the slide plate 702 to slide along the inner wall of the fixed plate 701. The sliding of the slide plate 702 drives the tensile meter 4 to move, and the movement of the tensile meter 4 drives the bending plate 707 to move. After the bending plate 707 moves a certain distance, it drives the L-shaped plate 708 to move synchronously. The movement of the L-shaped plate 708 drives the clamping plate 709 to move. The threaded rod 710 drives the clamping plate 711 to move with the help of the clamping plate 709. The movement of the clamping plate 711 pulls the wire 6. At this time, the tensile strength between the wire 6 and the crimping terminal 5 can be observed with the help of the tensile meter 4. When the wire 6 and the crimping terminal 5 breaks, the protective plate 92 and the semicircular frame 91 can prevent the wire 6 and the wire pressing terminal 5 from being thrown around and injuring people, thereby improving the safety during the test, and the rubber strip 93 can reduce the damage to the protective plate 92 caused by the impact, thereby preventing the protective plate 92 from being deformed and unable to slide normally. After that, the wire 6 and the wire pressing terminal 5 will fall into the semicircular frame 91, and the tensile meter 4 and other components will slide in the direction close to the servo motor 703 due to inertia. Since the friction between the fixed plate 701 and the slide plate 702 is greater than the friction between the bending plate 707 and the L-shaped plate 708, the sliding speed of the bending plate 707 will be less than the sliding speed of the L-shaped plate 708 after the tensile meter 4 slides for a distance. At this time, the L-shaped plate 708 will bring The movable rectangular plate 712 slides in the direction close to the top block 715. The sliding of the rectangular plate 712 will contact the inclined surface of the top block 715. The top block 715 will squeeze the rectangular plate 712 to make the rectangular plate 712 slide upward and stretch the leaf spring 717. The sliding of the rectangular plate 712 will cause the cylindrical block 714 to be located in the lower groove of the groove 713. Since the vertical section of the lower groove of the groove 713 is an isosceles trapezoid, the groove 713 will release the limit on the cylindrical block 714, and the first spring 716 will begin to stretch. The two clamping plates 709 will respectively use the tension of the two first springs 716 to drive the two threaded rods 710 to move away from each other. The movement of the threaded rod 710 will drive the clamping plate 711 to move, thereby releasing the limit on the wire 6, so that the wire 6 can automatically fall off.At the same time, since the hook 706 is inclinedly arranged on the surface of the second bracket 3, the wire pressing terminal 5 can slide off the arc surface of the hook 706 with its own weight, so that there is no need to manually release the limit of the wire pressing terminal 5 and the wire 6 after the test is completed, which improves the convenience and efficiency of the test. When the inertia disappears, since the elastic force of the leaf spring 717 is greater than the sum of the elastic forces of the two first springs 716, the leaf spring 717 begins to contract, and the rectangular plate 712 will slide downward with the help of the pulling force of the leaf spring 717, and the sliding of the rectangular plate 712 will cause the groove 71 3, the inner wall slope of the lower groove squeezes the cylindrical block 714, and the two cylindrical blocks 714 will move towards each other to reset the clamping plate 711. When the cylindrical block 714 contacts the inner wall of the upper groove of the groove 713, the upper groove of the groove 713 can limit the position of the cylindrical block 714, thereby limiting the position of the clamping plate 709, making it convenient to continue to use the clamping plate 711 to clamp and fix the wire 6. When the rectangular plate 712 moves downward, the rectangular plate 712 moves along the slope of the top block 715 and breaks away from the top block 715.

[0051] When the tension meter 4 moves due to inertia after the wire 6 and the crimping terminal 5 are broken, the drawstring 705 will relax, the slide plate 702 will move and contact the rough plate 83, the rough plate 83 will drive the connecting rod 82 to slide downward due to the extrusion, and the sliding of the rough plate 83 will also compress the second spring 84, and the second spring 84 will increase the friction between the rough plate 83 and the slide plate 702 by its own elastic force, thereby improving the buffering effect of the rough plate 83 on the slide plate 702, and then being able to buffer the tension meter 4 to prevent the tension meter 4 from being hit due to inertia In this process, the pressure wheel 87 can always squeeze the drawstring 705 due to its own weight, so that the drawstring 705 is in a tensioned state, to prevent the drawstring 705 from being loosened, which makes it difficult for the wire drum 704 to normally reel up the drawstring 705, and the drawstring 705 from falling off the arc surface of the wire drum 704. At this time, the connecting rod 82 with a regular hexagonal prism structure can limit the moving path of the rough plate 83, thereby limiting the moving path of the pressure wheel 87, and ensuring that the pressure wheel 87 can normally contact the drawstring 705.

[0052] When it is necessary to test again, slide the protective plate 92 along the inner wall of the semicircular frame 91. The sliding of the protective plate 92 will contact the wire 6 and the wire crimping terminal 5 on the inner wall of the semicircular frame 91 and push the wire 6 and the wire crimping terminal 5 to move. After the wire 6 and the wire crimping terminal 5 move a certain distance, the wire 6 and the wire crimping terminal 5 will fall to the inner wall of the pull plate 94, so that it is convenient to take out the wire 6 and the wire crimping terminal 5 from the inner wall of the semicircular frame 91 for cleaning, which can further facilitate the operation.

[0053] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A terminal tension test device, comprising a test bench (1), a tension meter (4), a wire crimping terminal (5) and a wire (6), characterized in that: The upper surface of the test bench (1) is fixedly connected to a first bracket (2), the upper surface of the test bench (1) is fixedly connected to a second bracket (3), the crimping terminal (5) and the wire (6) are fixedly connected, and further comprises: A pulling structure (7) is arranged between the first bracket (2) and the second bracket (3), and is used to quickly remove the wire pressing terminal (5) and the wire (6) after the test is completed, wherein the pulling structure (7) comprises a fixing plate (701) whose two ends are respectively fixedly connected to the first bracket (2) and the second bracket (3), a sliding plate (702) used to drive the tensile meter (4) to move, a hook (706) used to limit the position of the wire pressing terminal (5), two clamping plates (711) used to limit the position of the wire (6), and a top block (715) used to keep the two clamping plates (711) away from each other; A buffer structure (8) disposed on the upper surface of the test bench (1) and used to reduce the sliding distance of the tensile tester (4), the buffer structure (8) comprising a fixed tube (81) fixedly mounted on the upper surface of the test bench (1) and a rough plate (83) used to buffer the slide plate (702); A protective structure (9) is arranged on the surface of the fixing plate (701) and is used to prevent the wire pressing terminal (5) and the wire (6) from being thrown out to the surrounding after breaking. The protective structure (9) comprises a semicircular frame (91) fixedly mounted on the surface of the fixing plate (701) and a protective plate (92) for shielding the wire pressing terminal (5) and the wire (6).

2. A terminal tension test device according to claim 1, characterized in that: The slide plate (702) is slidably connected to the fixed plate (701), and the slide plate (702) is fixedly connected to the tensile meter (4). The surface of the first bracket (2) is fixedly connected to a servo motor (703), and the output end of the servo motor (703) is fixedly connected to a wire drum (704). The arc surface of the wire drum (704) is wound with a drawstring (705), and one end of the drawstring (705) is fixedly connected to the slide plate (702). The draw hook (706) is obliquely fixedly installed on the surface of the second bracket (3), and the draw hook (706) is snap-connected with the wire pressing terminal (5). The surface of the tensile meter (4) is fixedly connected to a bending plate (707), and the surface of the bending plate (707) is slidably connected to an L-shaped plate (708). The inner wall of the L-shaped plate (708) is slidably connected to a clamping plate (709), and the lower surface of the clamping plate (709) is threadedly connected to a threaded rod (710), and the threaded rod ( One end of the L-shaped plate (710) is rotatably connected to the clamping plate (711), the clamping plate (711) is slidably connected to the clamping plate (709), a rectangular plate (712) is slidably penetrated in the L-shaped plate (708), a groove (713) is provided on the surface of the rectangular plate (712), a cylindrical block (714) is fixedly connected to the surface of the clamping plate (709), the groove (713) is slidably connected to the cylindrical block (714), the top block (715) is connected to the bending plate ( 707), the cross section of the hook (706) is "J"-shaped, the wire (6) is located between the two clamping plates (711), the friction between the fixed plate (701) and the slide plate (702) is greater than the friction between the bending plate (707) and the L-shaped plate (708), and the inner wall of the L-shaped plate (708) is fixedly connected with two first springs (716), and one end of the first spring (716) is fixedly connected to the clamping plate (709).

3. A terminal tension test device according to claim 2, characterized in that: The vertical cross section of the top block (715) is in the shape of a right-angled trapezoid.

4. A terminal tension test device according to claim 2, characterized in that: The groove (713) consists of an upper groove and a lower groove. The vertical cross-section of the upper groove of the groove (713) is rectangular, and the vertical cross-section of the lower groove of the groove (713) is an isosceles trapezoid.

5. A terminal tension test device according to claim 2, characterized in that: A leaf spring (717) is fixedly connected to the surface of the rectangular plate (712), one end of the leaf spring (717) is fixedly connected to the L-shaped plate (708), and the elastic force of the leaf spring (717) is greater than the sum of the elastic forces of the two first springs (716).

6. A terminal tension test device according to claim 1, characterized in that: The inner wall of the fixed tube (81) is slidably connected to a connecting rod (82), the upper end of the connecting rod (82) is fixedly connected to a rough plate (83), the arc surface of the fixed tube (81) is sleeved with a second spring (84), and the two ends of the second spring (84) are respectively fixedly connected to the test bench (1) and the rough plate (83).

7. A terminal tension test device according to claim 5, characterized in that: The surface of the rough plate (83) is fixedly connected to a strip plate (85), the surface of the strip plate (85) is slidably connected to a rectangular sleeve (86), the surface of the rectangular sleeve (86) is rotatably connected to a pressure wheel (87), and the pressure wheel (87) is slidably connected to the drawstring (705).

8. A terminal tension test device according to claim 6, characterized in that: The connecting rod (82) is in the form of a regular hexagonal prism structure.

9. A terminal tension test device according to claim 1, characterized in that: The protective plate (92) is slidably connected to the semicircular frame (91), and a plurality of rubber strips (93) are fixedly connected to the inner arc surface of the protective plate (92).

10. A terminal tension test device according to claim 9, characterized in that: A pull plate (94) is fixedly connected to the inner arc surface of the protection plate (92), and the vertical cross-section of the pull plate (94) is arc-shaped.

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