Tension tester for lead cap detection

Abstract

The invention relates to the technical field of tension testers, and discloses a tension tester for lead cap detection, which comprises a tensile machine body, and a workbench and a lifting arm connected to the tensile machine body. The upper moving plate is arranged at the bottom of the lifting arm, the multiple sets of clamping pieces are arranged on the outer wall of the upper moving plate, and the T-shaped groove between the moving block and the fixed block is utilized, so that compared with a conventional clamp, the T-shaped groove is arranged to be matched with a lead cap in shape, the contact area of the lead cap and the clamping pieces is large, placement is more stable, meanwhile, people can place the lead cap more conveniently, and use is more convenient. The moving block is opened in a sliding manner, so that the placement operation is simple and convenient; through the arrangement of the plurality of clamping pieces, a worker can conveniently clamp a next to-be-detected lead cap in the detection process of the previous lead cap, and the time for waiting for replacement and installation is saved.

Description

Technical Field

[0001] The invention relates to the technical field of tension testers, in particular to a tension tester used for lead cap detection. Background Art

[0002] A tensile tester is a device used to measure the mechanical properties of materials, components or products when subjected to tensile force. It is mainly composed of a loading system, a measuring system, a control system, and upper and lower clamps. Lead caps are also called crimping caps and wiring caps. After production, lead caps need to be sampled for tensile force after crimping with the wires. Generally, the wires are peeled at both ends and crimped with the lead caps. Then the lead caps are clamped in the upper clamp, one end of the wire is clamped in the lower clamp, and the tensile machine is started to test the tensile force of the lead caps.

[0003] The patent with the current announcement number CN212844649U discloses a fabric tensile tester. The fabric tensile tester includes a workbench, a tensile test mechanism, a clamping mechanism, a storage mechanism, a stabilizing mechanism, an auxiliary mechanism, a top plate and a rubber foot. The tensile test mechanism is installed on the workbench. The tensile test mechanism includes a support plate, a slide, an electric slide rail, an electric slider, a connecting rod and a tensile detector. The two support plates are symmetrically fixedly installed on the workbench. The two slides are respectively opened on the side walls of the two support plates on the opposite side, and the two electric slide rails are respectively installed in the two slides. The two electric sliders are respectively slidably connected to the two electric slide rails, and the connecting rod is transversely fixedly installed between the two electric sliders. The tensile detector is installed at the lower end of the connecting rod. The fabric tensile tester provided by this device has the advantages of convenient operation and high work efficiency.

[0004] Although the above device solves the problem of poor detection efficiency, it still has the following shortcomings:

[0005] Due to the small size of the lead cap, the clamp is inconvenient to operate during the clamping process. In addition, most existing clamps are of universal design, and the outer side of the lead cap is arc-shaped. Even after clamping the wire, its bottom is still cylindrical, which makes the contact area between the clamp and the lead cap relatively limited, resulting in insufficient clamping stability. Therefore, during the tensile test, the lead cap is easy to detach from the clamp, which brings many inconveniences to the test process. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a tensile tester for lead cap detection to solve the problems raised by the background technology and facilitate convenient operation of the lead cap when clamping.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a tensile tester for lead cap detection, comprising a tensile testing machine body, a workbench connected to the tensile testing machine body and a lifting arm, the bottom surface of the lifting arm is connected to an upper mounting plate, an upper moving plate is slidably connected to the upper mounting plate, the outer wall of the upper moving plate is fixedly connected to multiple groups of clips, the clips include a moving block and a fixed block, the moving block is slidably connected to the upper mounting plate, the fixed block is fixedly connected to the upper moving plate, the moving block and the fixed block are provided with T-slots for clamping lead caps and wires, the top surface of the workbench is connected to a lower mounting plate, the lower mounting plate is connected to a lower moving plate, the top surface of the lower moving plate is connected to multiple T-shaped hanging plates corresponding to the clips, and the outer wall of the moving block is connected to a fastener.

[0008] Furthermore, the fastener includes an insert plate, which is fixedly connected to the outer wall of the movable block, and a slot corresponding to the position of the insert plate is provided on the fixed block, and an L-shaped card plate is inserted into the outer side of one end of the insert plate passing through the slot.

[0009] Furthermore, the moving block is fixedly connected to one side of the upper moving plate with two symmetrically arranged L-shaped sliding blocks, and the outer wall of the upper moving plate is provided with L-shaped sliding grooves corresponding to a plurality of groups of L-shaped sliding blocks.

[0010] Furthermore, multiple groups of stop members are connected to the upper and lower plates, and the stop members include a first spring and an extrusion block. Both sides of the inner walls of the upper mounting plate and the lower mounting plate are provided with slots corresponding to the positions of the extrusion blocks. Both sides of the outer walls of the upper and lower plates are provided with connecting slots, and the extrusion blocks are slidably connected in the connecting slots. One end of the extrusion block is fixedly connected to a first spring fixedly connected to the connecting slot.

[0011] Furthermore, the top surface of the downward moving plate is fixedly connected with a plurality of guide rods corresponding to the positions of the clamping parts, a vertical block is slidably connected inside the guide rod, the T-shaped hanging plate is fixedly connected to the outer wall of the vertical block, and a limiting piece is also connected to the outer side of the guide rod.

[0012] Furthermore, the limiting member includes a thickening block, which is fixedly connected to the outer wall of the guide rod, and a limiting groove is provided in the guide rod, and the limiting groove extends into the guide rod, and a limiting plate is slidably connected in the limiting groove, and the lower surface of the limiting plate is slidably connected to the top surface of the vertical block, one end of the limiting plate is fixedly connected to the limiting rod, and one end of the limiting rod is penetrated by the thickening block and slidably connected to the limiting rod.

[0013] Furthermore, two second springs are fixedly connected in the limiting groove, the two second springs are symmetrically arranged, and the other ends of the two second springs are fixedly connected to the limiting plate.

[0014] Furthermore, both ends of the upper and lower plates are connected with a symmetrically arranged integral part, and the integral part includes a sliding rod and a sleeve rod, the sliding rod is fixedly connected to the upper plate, the sleeve rod is fixedly connected to the lower plate, the sliding rod is slidably connected to the sleeve rod, and the outer wall of the sleeve rod is fixedly connected with a gripping sleeve.

[0015] Furthermore, a heating controller is installed on the top of the movable block and the fixed block of one of the clamping parts, a heating plate is fixedly connected in the T-slot, and the heating plate is electrically connected to the heating controller; a refrigeration controller is installed on the top of the movable block and the fixed block of the other clamping part, a semiconductor refrigeration plate is fixedly connected in the T-slot, and the semiconductor refrigeration plate is electrically connected to the refrigeration controller; a temperature sensor is installed on the outer wall of the fixed block, and the temperature sensor is electrically connected to the heating controller and the refrigeration controller.

[0016] Furthermore, a sealing gasket is fixedly connected to one side where the movable block and the fixed block in the two clamping parts are in contact with each other.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The tensile tester for lead cap detection is characterized in that an upper moving plate is arranged at the bottom of a lifting arm, a plurality of groups of clips are arranged on the outer wall of the upper moving plate, and a T-slot between a moving block and a fixed block is used. Compared with a conventional clamp, the T-slot is arranged to have a shape matching the lead cap, so that the contact area between the lead cap and the clip is large, the placement is more stable, and it is more convenient for people to place the lead cap. The moving block is slid open, so that the placement operation is simple and convenient. The arrangement of the plurality of clips can facilitate workers to clamp the next lead cap to be detected during the detection of the previous lead cap, thereby saving waiting time for replacement and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of multiple moving blocks, fixed blocks and multiple guide rods of the present invention;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the upper moving plate, multiple moving blocks and multiple fixed blocks of the present invention;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the heating controller and the cooling controller of the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the upper mounting plate of the present invention;

[0024] Figure 6It is a schematic diagram of a three-dimensional cross-sectional structure of a sliding rod and a sleeve rod of the present invention;

[0025] Figure 7 It is a schematic diagram of a three-dimensional cross-sectional structure of a guide rod of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the guide rod and the thickening block of the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the limit plate, the sliding block and the T-shaped hanging plate of the present invention.

[0028] In the figure: 1. tensile machine body; 2. workbench; 3. lifting arm; 4. upper mounting plate; 5. upper moving plate; 6. moving block; 7. lower mounting plate; 8. lower moving plate; 9. guide rod; 10. fixed block; 11. slot; 12. extrusion block; 13. slide rod; 14. sleeve rod; 15. grip sleeve; 16. T-type hanging plate; 17. thickening block; 18. L-type card plate; 19. plug-in plate; 20. L-type slide groove; 21. T-type groove; 22. heating controller; 23. refrigeration controller; 24. L-type slider; 25. temperature sensor; 26. semiconductor refrigeration plate; 27. heating plate; 28. sealing gasket; 29. ​​first spring; 30. card slot; 31. vertical block; 32. limit plate; 33. limit groove; 34. second spring; 35. limit rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] See also Figure 1-Figure 9 A tensile tester for lead cap detection includes a tensile machine body 1, a workbench 2 and a lifting arm 3 connected to the tensile machine body 1, the bottom surface of the lifting arm 3 is connected to an upper mounting plate 4, an upper moving plate 5 is slidably connected to the upper mounting plate 4, and the outer wall of the upper moving plate 5 is fixedly connected to multiple groups of clamping parts, the clamping parts include a moving block 6 and a fixed block 10, the moving block 6 is slidably connected to the upper mounting plate 4, the fixed block 10 is fixedly connected to the upper moving plate 5, and T-slots 21 for clamping lead caps and wires are provided in the moving block 6 and the fixed block 10, the top surface of the workbench 2 is connected to a lower mounting plate 7, the lower mounting plate 7 is connected to a lower moving plate 8, the top surface of the lower moving plate 8 is connected to multiple T-shaped hanging plates 16 corresponding to the clamping parts, and the outer wall of the moving block 6 is connected to a fastener.

[0031] The tensile tester for lead cap detection in the present invention, when the lead cap needs to be detected, only needs to slide the moving block 6 on the outer side of the upper plate 5, so that the moving block 6 is separated from the fixed block 10, thereby exposing the T-slot 21. At this time, the lead cap and the wire are placed in the T-slot 21, and the moving block 6 is moved so that the moving block 6 is restored to the closed state with the fixed block 10, and the moving block 6 is fixed to one side of the fixed block 10 by a fastener. At this time, the end of the lead cap is fixed between the moving block 6 and the fixed block 10;

[0032] Then, one end of the wire is sleeved in the T-shaped hanging plate 16, so that the T-shaped hanging plate 16 hooks the wire. At this time, one end of the lead cap and one end of the wire are fixed, and the tensile machine body 1 can be started to drive the lifting arm 3 to rise for testing; because the T-shaped groove 21 between the moving block 6 and the fixed block 10 can clamp the lead cap to limit the position, thereby ensuring the stability of the lead cap during the clamping process;

[0033] During the test of the lead caps in the first clamping part, since the lifting speed of the lifting arm 3 is slow and a safe distance is left between each clamping part, other clamping parts can be operated to complete the clamping of the same batch of lead caps;

[0034] After completing the test of the lead cap, the lifting arm 3 returns to its original height, and the worker can open the fastener to separate the movable block 6 from the fixed block 10 and take out the lead cap that has been tested; and move the upper plate 5 and the lower plate 8 to move the next lead cap that has been clamped to the center position of the lifting arm 3 to achieve the tension test of the second lead cap.

[0035] By arranging an upper plate 5 at the bottom of the lifting arm 3, and arranging multiple groups of clips on the outer wall of the upper plate 5, and utilizing the T-slot 21 between the moving block 6 and the fixed block 10, compared with the conventional clamp, the T-slot 21 is arranged to be matched with the lead cap in shape, so that the contact area between the lead cap and the clip is large, the placement is more stable, and it is more convenient for people to place the lead cap, and the moving block 6 is slid open, so that the placement operation is simple and convenient; through the arrangement of multiple clips, it is convenient for workers to clamp the next lead cap to be inspected during the inspection of the previous lead cap, saving waiting time for replacement and installation.

[0036] As a preferred technical solution of the present invention, the fastener includes an insert plate 19, which is fixedly connected to the outer wall of the movable block 6. A slot 11 corresponding to the position of the insert plate 19 is opened on the fixed block 10, and an L-shaped card plate 18 is inserted into the outer side of one end of the insert plate 19 passing through the slot 11.

[0037] Specifically, when the movable block 6 needs to slide open, first pull out the L-shaped card plate 18 from the plug plate 19 so that the plug plate 19 is free from restriction, and the movable block 6 can be moved, so that the movable block 6 drives the plug plate 19 to disengage from the slot 11 in the fixed block 10, so that the movable block 6 and the fixed block 10 are separated, and the T-slot 21 is exposed, so that it is convenient to install the lead cap; when closing, only the reverse operation is needed to connect the plug plate 19 with the slot 11, and limit the L-shaped card plate 18 and the plug plate 19, so that the movable block 6 and the fixed block 10 can be tightened, thereby ensuring the stability of the lead cap.

[0038] As a preferred technical solution of the present invention, the moving block 6 is fixedly connected to one side close to the upper moving plate 5 with two symmetrically arranged L-shaped sliding blocks 24 , and the outer wall of the upper moving plate 5 is provided with L-shaped sliding grooves 20 corresponding to several groups of L-shaped sliding blocks 24 .

[0039] Specifically, when the moving block 6 is sliding, the L-shaped sliding block 24 will slide in the L-shaped sliding groove 20. This arrangement ensures that the moving block 6 is stable and smooth when moving.

[0040] As a preferred technical solution of the present invention, multiple groups of stoppers are connected to the upper plate 5 and the lower plate 8, and the stoppers include a first spring 29 and an extrusion block 12. Slots 30 corresponding to the position of the extrusion block 12 are provided on both sides of the inner walls of the upper mounting plate 4 and the lower mounting plate 7. Connecting grooves are provided on both sides of the outer walls of the upper plate 5 and the lower plate 8, and the extrusion block 12 is slidably connected in the connecting groove. One end of the extrusion block 12 is fixedly connected to the first spring 29 fixedly connected to the connecting groove.

[0041] Specifically, after the detection of a lead cap is completed, the upper plate 5 and the lower plate 8 can be moved. When the two are moving, the extrusion blocks 12 on both sides of the outer wall of the upper plate 5 and the lower plate 8 will move at the same time, and the outer wall of the extrusion block 12 is provided with bevel edges on both sides. Therefore, when the extrusion block 12 is squeezed by the upper mounting plate 4 and the lower mounting plate 7, it will shrink in the connecting groove, and as the upper plate 5 and the lower plate 8 gradually move, the extrusion block 12 will correspond to the card slot 30. At this time, the extrusion block 12 pops out under the action of the first spring 29 and is engaged with the card slot 30;

[0042] Through the coordinated arrangement of the first spring 29, the extrusion block 12 and the card slot 30, not only can the upper plate 5 be fixed in the upper mounting plate 4 and the lower plate 8 be fixed in the lower mounting plate 7, but it can also ensure that after the upper plate 5 and the lower plate 8 move, they remain in the center position of the lifting arm 3, thereby making the force of the tensile machine body 1 uniform and stable when rising.

[0043] As a preferred technical solution of the present invention, the top surface of the lower plate 8 is fixedly connected with a plurality of guide rods 9 corresponding to the positions of the clamping parts, a vertical block 31 is slidably connected inside the guide rod 9, the T-shaped hanging plate 16 is fixedly connected to the outer wall of the vertical block 31, and a limiting member is also connected to the outside of the guide rod 9.

[0044] Specifically, when the lead cap being tested rises with the corresponding clamping member, the other lead cap that has been clamped will also rise with the upper moving plate 5. At this time, the vertical block 31 sliding in the guide rod 9 will drive the T-shaped hanging plate 16 to rise with the rise of the upper moving plate 5. This arrangement will neither share the tensile strength of the lead cap being tested nor cause any hindrance to the lead cap being tested.

[0045] After the T-shaped hanging plate 16 slides up in the guide rod 9 along with the vertical block 31, when the lifting arm 3 detects and recovers the height, the vertical block 31 will drive the T-shaped hanging plate 16 to move down, straighten the wire, and thus ensure that the wire is always located in the guide rod 9, making it convenient to fix it.

[0046] As a preferred technical solution of the present invention, the limiting member includes a thickening block 17, which is fixedly connected to the outer wall of the guide rod 9. A limiting groove 33 is provided in the guide rod 9, and the limiting groove 33 extends into the guide rod 9. A limiting plate 32 is slidably connected in the limiting groove 33. The lower surface of the limiting plate 32 is slidably connected to the top surface of the vertical block 31. One end of the limiting plate 32 is fixedly connected to the limiting rod 35, and one end of the limiting rod 35 is passed through the thickening block 17 and is slidably connected thereto.

[0047] As a preferred technical solution of the present invention, two second springs 34 are fixedly connected in the limiting groove 33 , the two second springs 34 are symmetrically arranged, and the other ends of the two second springs 34 are fixedly connected to the limiting plate 32 .

[0048] Specifically, when the last lead cap is tested, the lifting arm 3 returns to its initial height. At this time, the vertical block 31 and the T-shaped hanging plate 16 that originally followed the rise have returned to their original positions. At this time, the lower moving plate 8 is operated to move to the center position.

[0049] When it is necessary to fix the vertical block 31 in the guide rod 9 moved to the center position to fix the T-shaped hanging plate 16, it is only necessary to pull the limit rod 35 to drive the limit plate 32 to move backward, and at the same time compress the two second springs 34. At this time, the limit plate 32 retreats, and the vertical block 31 falls to the bottom of the guide rod 9 under the action of gravity. Then, the limit plate 32 is released. At this time, under the action of the second spring 34, the limit plate 32 can be moved forward to press the vertical block 31 downward, thereby completing the limitation of the vertical block 31, i.e., the T-shaped hanging plate 16 on the guide rod 9.

[0050] The other vertical blocks 31 that are not limited by the limit plate 32 move in the guide rod 9 as the lifting arm 3 rises. Since the guide rod 9 has a certain height, the vertical blocks 31 can slide inside without being separated from it. After the lifting arm 3 descends to restore its height, the vertical blocks 31 are inside the guide rod 9 and are easily limited by the limit plate 32.

[0051] As a preferred technical solution of the present invention, both ends of the upper moving plate 5 and the lower moving plate 8 are connected with a symmetrically arranged one-piece part, which includes a sliding rod 13 and a sleeve rod 14. The sliding rod 13 is fixedly connected to the upper moving plate 5, the sleeve rod 14 is fixedly connected to the lower moving plate 8, the sliding rod 13 is slidably connected to the sleeve rod 14, and the outer wall of the sleeve rod 14 is fixedly connected with a gripping sleeve 15.

[0052] Specifically, when the upper and lower plates 5 and 8 need to be moved, it is only necessary to push and pull the sleeve rod 14, so that the sleeve rod 14 drives the lower plate 8 and the slide rod 13 to move at the same time, and the slide rod 13 drives the upper plate 5 to move, so that when the workers push the upper and lower plates 5 and 8, they can pull or push the sleeve rod 14 to move the upper and lower plates 5 and 8 at the same time;

[0053] When the upward moving plate 5 rises with the lifting arm 3, it drives the slide bar 13 to slide and rise in the sleeve rod 14. When the lifting arm 3 descends, the slide bar 13 descends in the sleeve rod 14. This arrangement will not affect the rising and falling of the lifting arm 3.

[0054] As a preferred technical solution of the present invention, a heating controller 22 is installed on the top of the moving block 6 and the fixed block 10 of one of the clamping parts, a heating plate 27 is fixedly connected in the T-slot 21, and the heating plate 27 is electrically connected to the heating controller 22; a refrigeration controller 23 is installed on the top of the moving block 6 and the fixed block 10 of the other clamping part, a semiconductor refrigeration plate 26 is fixedly connected in the T-slot 21, and the semiconductor refrigeration plate 26 is electrically connected to the refrigeration controller 23; a temperature sensor 25 is installed on the outer wall of the fixed block 10, and the temperature sensor 25 is electrically connected to the heating controller 22 and the refrigeration controller 23.

[0055] Specifically, there are high and low temperature differences due to different ambient temperatures of the lead cap, such as cold areas or high temperature areas.

[0056] Therefore, when the lead cap is installed in the clamping member, the heating controller 22 can be started, and the heating controller 22 is started to heat the heating plate 27, and the lead cap is wrapped by the heating plate 27, so that the temperature is transmitted to the lead cap, and the temperature feedback of the temperature sensor 25 is used to control the temperature of the heating controller 22;

[0057] At the same time, another card connector with a refrigeration controller 23 can also be operated to start the refrigeration controller 23 to make the semiconductor refrigeration plate 26 work. The semiconductor refrigeration plate 26 is wrapped around the outside of the lead cap, so that the lead cap is in a low-temperature space. The temperature feedback of the temperature sensor 25 is used to control the refrigeration controller 23.

[0058] By setting the heating controller 22 and the heating plate 27, and utilizing the setting of the refrigeration controller 23 and the semiconductor refrigeration plate 26, high temperature and low temperature spaces are simulated, so that the tensile strength of the lead caps at high and low temperatures and room temperature can be detected, thereby making the detection of the lead caps more comprehensive.

[0059] It is worth noting that using the heating controller 22 and the cooling controller 23 to achieve heating and cooling is an existing mature technology, so it will not be described in detail here.

[0060] As a preferred technical solution of the present invention, a sealing gasket 28 is fixedly connected to one side where the movable block 6 and the fixed block 10 in the two clamping parts are in contact with each other.

[0061] Specifically, a sealing gasket 28 is provided on the fitting surface of the moving block 6 and the fixed block 10 provided with the heating controller 22 and the cooling controller 23, which can effectively reduce the degree of temperature leakage and make the simulated temperature space stable.

[0062] 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 tester for lead cap detection, comprising a tensile machine body (1), a workbench (2) connected to the tensile machine body (1) and a lifting arm (3), characterized in that: The bottom surface of the lifting arm (3) is connected to an upper mounting plate (4), and an upper moving plate (5) is slidably connected inside the upper mounting plate (4). The outer wall of the upper moving plate (5) is fixedly connected to multiple groups of clamping parts, and the clamping parts include a moving block (6) and a fixed block (10). The moving block (6) is slidably connected to the upper mounting plate (4), and the fixed block (10) is fixedly connected to the upper moving plate (5). T-shaped grooves (21) for clamping lead caps and wires are provided in the moving block (6) and the fixed block (10). The top surface of the workbench (2) is connected to a lower mounting plate (7), and a lower moving plate (8) is connected to the lower mounting plate (7). The top surface of the lower moving plate (8) is connected to multiple T-shaped hanging plates (16) corresponding to the clamping parts, and the outer wall of the moving block (6) is connected to a fastener.

2. A tensile tester for lead cap detection according to claim 1, characterized in that: The fastener comprises an inserting plate (19), the inserting plate (19) being fixedly connected to the outer wall of the moving block (6), the fixed block (10) being provided with a slot (11) corresponding to the position of the inserting plate (19), and an L-shaped card plate (18) being inserted and arranged on the outer side of one end of the inserting plate (19) passing through the slot (11).

3. A tensile tester for lead cap detection according to claim 1, characterized in that: The moving block (6) is fixedly connected to one side of the upper moving plate (5) with two symmetrically arranged L-shaped sliding blocks (24), and the outer wall of the upper moving plate (5) is provided with L-shaped sliding grooves (20) corresponding to a plurality of groups of L-shaped sliding blocks (24).

4. A tensile tester for lead cap detection according to claim 1, characterized in that: The upper plate (5) and the lower plate (8) are both connected with a plurality of groups of stoppers, the stoppers comprising a first spring (29) and an extrusion block (12); both sides of the inner walls of the upper mounting plate (4) and the lower mounting plate (7) are provided with card slots (30) corresponding to the position of the extrusion block (12); both sides of the outer walls of the upper plate (5) and the lower plate (8) are provided with connection slots, the extrusion block (12) is slidably connected in the connection slot, and one end of the extrusion block (12) is fixedly connected to the first spring (29) fixedly connected to the connection slot.

5. A tensile tester for lead cap detection according to claim 1, characterized in that: The top surface of the downward moving plate (8) is fixedly connected to a plurality of guide rods (9) corresponding to the positions of the clamping parts, a vertical block (31) is slidably connected inside the guide rods (9), the T-shaped hanging plate (16) is fixedly connected to the outer wall of the vertical block (31), and a limiting member is also connected to the outer side of the guide rods (9).

6. A tensile tester for lead cap detection according to claim 5, characterized in that: The limiting member comprises a thickening block (17), the thickening block (17) is fixedly connected to the outer wall of the guide rod (9), a limiting groove (33) is provided in the guide rod (9), the limiting groove (33) extends into the guide rod (9), a limiting plate (32) is slidably connected in the limiting groove (33), the lower surface of the limiting plate (32) is slidably connected to the top surface of the vertical block (31), one end of the limiting plate (32) is fixedly connected to the limiting rod (35), and one end of the limiting rod (35) passes through the thickening block (17) and is slidably connected to the limiting rod (35).

7. A tensile tester for lead cap detection according to claim 6, characterized in that: Two second springs (34) are fixedly connected in the limiting groove (33), the two second springs (34) are symmetrically arranged, and the other ends of the two second springs (34) are fixedly connected to the limiting plate (32).

8. A tensile tester for lead cap detection according to claim 1, characterized in that: Both ends of the upper moving plate (5) and the lower moving plate (8) are connected with a symmetrically arranged integral part, and the integral part comprises a sliding rod (13) and a sleeve rod (14); the sliding rod (13) is fixedly connected to the upper moving plate (5); the sleeve rod (14) is fixedly connected to the lower moving plate (8); the sliding rod (13) is slidably connected to the sleeve rod (14); and the outer wall of the sleeve rod (14) is fixedly connected with a gripping sleeve (15).

9. A tensile tester for lead cap detection according to claim 1, characterized in that: A heating controller (22) is installed on the top of the movable block (6) and the fixed block (10) of one of the clamping parts, a heating plate (27) is fixedly connected in the T-shaped slot (21), and the heating plate (27) is electrically connected to the heating controller (22); a cooling controller (23) is installed on the top of the movable block (6) and the fixed block (10) of the other clamping part, a semiconductor cooling plate (26) is fixedly connected in the T-shaped slot (21), and the semiconductor cooling plate (26) is electrically connected to the cooling controller (23); a temperature sensor (25) is installed on the outer wall of the fixed block (10), and the temperature sensor (25) is electrically connected to the heating controller (22) and the cooling controller (23).

10. A tensile tester for lead cap detection according to claim 1, characterized in that: A sealing gasket (28) is fixedly connected to one side of the movable block (6) and the fixed block (10) in the two clamping parts.

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