A device for detecting the tensile properties of a sheet material

Abstract

The present invention relates to the technical field of sheet material detection, and particularly relates to a device for detecting the tensile properties of a sheet material, including a detection table. On both sides near the upper surface of the detection table, vertical plates are fixedly arranged, and fixing ports are formed in the outer walls of the vertical plates. A first hydraulic telescopic member is movably connected in the fixing ports, and a first traction plate is fixedly arranged at the telescopic end of the first hydraulic telescopic member. A first connecting rod is fixedly arranged on one side outer wall of the first traction plate, and a second traction plate is fixedly connected to the end of the first connecting rod. A second connecting rod penetrates and is movably arranged on the outer wall of the second traction plate. The present invention can not only realize the rapid detection of the tensile properties of the sheet material, but also drive the pressing rod to move downward through the second hydraulic telescopic member, so that the pressing rod presses the sheet material to be detected above the material supporting mechanism, and the bending degree of the sheet material before being broken by the pressing rod can be determined through the positioning mechanism, thereby achieving the purpose of detecting the bending resistance of the sheet material, and the use effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of plate detection, and in particular to a plate tensile performance detection device. Background Art

[0002] In many industrial fields, such as construction, automobile manufacturing, aerospace, and mechanical processing, sheet metal is widely used as a basic material. The tensile properties of sheet metal are directly related to its reliability and safety in actual use, and are an important indicator for measuring the quality of sheet metal. However, the existing methods for testing the tensile properties of sheet metal have many limitations and are difficult to meet the needs of modern industry for high-precision, high-efficiency, and multi-functional testing.

[0003] The traditional universal material testing machine is a more common plate tensile performance testing equipment. Its working principle is to clamp the two ends of the plate sample through a fixture, and then apply axial tension until the sample breaks. However, this type of testing machine has certain problems in practical applications. First, the design of the fixture part is relatively simple, and it has poor adaptability to plates of different thicknesses, widths and materials. It is easy to have loose clamping and sample slippage, resulting in inaccurate test results and unable to truly reflect the tensile properties of the plate. Secondly, the test is single and cannot simultaneously realize the bending performance test of the plate. Therefore, it is urgent to design a plate tensile performance testing device to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the defects in the prior art and to propose a plate tensile performance testing device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] 14. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 13, wherein the lifting of the lifting link is, after the lifting of the lifting link is lifted up, the lifting of the lifting link being further increased. The lifting of the lifting link is further increased in number and the amount of lifting of the lifting link being increased. The lifting of the lifting link is further increased in number and the amount of lifting of the lifting link being increased.

[0007] A locking mechanism, which is fixedly arranged on one outer wall of the second locking plate and is used for clamping the plate to be detected;

[0008] A material supporting mechanism, which is arranged on the upper surface of the detection table and is used for assisting in supporting the plate to be detected;

[0009] A positioning mechanism, which is arranged in the detection table and is used for determining the bending degree of the plate before it is broken by the pressing rod.

[0010] As a further scheme of the present invention: the locking mechanism includes a lower supporting plate, an installation rod is fixedly installed above the lower supporting plate, and an upper limit plate is fixedly arranged at the top end of the installation rod. Fixed rods are fixedly arranged on one outer wall of the lower supporting plate and the upper limit plate, and the end of the fixed rod is connected to the outer wall of the second locking plate. A roller is also fixedly arranged on the lower surface of the lower supporting plate. The outer walls of the lower supporting plate and the upper limit plate are both fixedly provided with a third hydraulic telescopic member through holes, and the telescopic end of the third hydraulic telescopic member is fixedly connected with a clamping plate, and a clamping component is also arranged in the clamping plate.

[0011] As a further scheme of the present invention: the clamping component includes installation openings equidistantly arranged on the outer wall of the clamping plate. An installation shaft is rotatably arranged in the installation opening, and a clamping piece is fixedly arranged on the outer wall of the installation shaft. Rubber sheets are fixedly arranged on both inner walls of the installation opening, and the clamping piece is in contact with the rubber sheets. A rubber pad is bonded to the outer wall of the clamping piece. Spiked blocks distributed in a rectangular array are arranged on one outer wall of the clamping piece away from the rubber pad. A limiting opening is also opened on the outer wall of the clamping plate, and the end of the installation shaft is located in the limiting opening. A dial is fixedly arranged at the end of the installation shaft, and the dial is located in the limiting opening.

[0012] As a further scheme of the present invention: the material supporting mechanism includes an installation seat fixedly arranged on the upper surface of the detection table, and a supporting block is movably arranged in the installation seat. A pressure sensor II is arranged between the bottom inner wall of the installation seat and the supporting bracket.

[0013] As a further scheme of the present invention: the positioning mechanism includes a fixed frame. A positioning opening is opened on the outer wall of the detection table, and the fixed frame is fixedly installed in the positioning opening. Symmetrically distributed side rods are fixedly installed on the inner wall of the fixed frame, and sleeves are fixedly arranged at the ends of the side rods. A rubber sleeve is fitted on the inner wall of the sleeve, and a lifting rod is slidably arranged in the rubber sleeve. A positioning plate is fixedly arranged at the top end of the lifting rod, and a movable opening is opened on the outer wall of the positioning plate. A displacement plate is movably arranged in the movable opening. A locking component is also arranged below the positioning plate, which is used for locking the position of the displacement plate and unlocking the displacement plate and preventing the positioning plate from further moving down when the plate breaks.

[0014] As a further solution of the present invention: The locking component includes a central plate fixedly arranged on the lower surface of the positioning plate. A locking rod is movably connected through the outer wall of the central plate. A locking groove is formed on the outer wall of the displacement plate, and the end of the locking rod is located in the locking groove. A retaining piece is fixedly arranged on the outer wall of the locking rod, and a spring is sleeved outside the locking rod. One end of the spring is connected to the outer wall of the central plate, and the other end of the spring is connected to the retaining piece. An abutting plate is fixedly arranged at the end of the locking rod away from the central plate, and a rubber plate is fixedly arranged on the outer wall of the abutting plate. An electromagnet is also fixedly arranged on the outer wall of the central plate. An attracting member adsorbed to the electromagnet is fixedly arranged on the outer wall of the abutting plate close to the electromagnet.

[0015] As a further solution of the present invention: Electric sliding rails are fixedly arranged on the lower surface of the detection table and the upper surface of the top plate, and sliding blocks are slidably arranged in the electric sliding rails. A protective frame is fixedly arranged on the outer wall of the sliding block.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] For a sheet tensile property detection device provided by the present invention, a sheet to be detected can be placed on the material supporting mechanism. Then, the first hydraulic telescopic member can drive the first traction plate to move, so that the first traction plate pushes the first locking plate and the second locking plate to move. Further, the locking mechanism on the outer wall of the second locking plate moves to the outside of the sheet to be detected. The sheet to be detected can be clamped through the locking mechanism. Then, the first hydraulic telescopic member contracts to pull the first traction plate. The first traction plate drives the second traction plate to move through the first connecting rod. The second traction plate drives the first locking plate to move. The first locking plate drives the second locking plate to move through the second connecting rod. The second locking plate drives the locking mechanism to move, which can play a role in pulling the sheet to be detected. During the pulling process, the pressure sensor I between the second traction plate and the first locking plate is squeezed, which can achieve the purpose of detecting the pulling force. Until the sheet breaks, the maximum pressure value detected by the pressure sensor I can reflect the tensile property of the sheet. Further, the second hydraulic telescopic member can also be used to drive the pressing rod to move downward, so that the pressing rod presses the sheet to be detected above the material supporting mechanism. And through the positioning mechanism, the bending degree of the sheet before being broken by the pressing rod can be determined, so as to achieve the purpose of detecting the bending property of the sheet, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a first perspective structural schematic diagram of a sheet tensile property detection device provided by an embodiment of the present invention;

[0019] Figure 2 is a half-sectional structural schematic diagram of a sheet tensile property detection device provided by an embodiment of the present invention;

[0020] Figure 3 Schematic diagram of the locking mechanism in a device for detecting the tensile property of a board provided by an embodiment of the present invention;

[0021] Figure 4 Schematic diagram of the clamping assembly in a device for detecting the tensile property of a board provided by an embodiment of the present invention;

[0022] Figure 5 Schematic diagram of the clamping member in a device for detecting the tensile property of a board provided by an embodiment of the present invention;

[0023] Figure 6 Second perspective schematic diagram of a device for detecting the tensile property of a board provided by an embodiment of the present invention;

[0024] Figure 7 Schematic diagram of the positioning mechanism in a device for detecting the tensile property of a board provided by an embodiment of the present invention;

[0025] Figure 8 Schematic diagram of the locking assembly in a device for detecting the tensile property of a board provided by an embodiment of the present invention;

[0026] Figure 9 Third perspective schematic diagram of a device for detecting the tensile property of a board provided by an embodiment of the present invention.

[0027] In the figure: 101 - detection table, 102 - vertical plate, 103 - first hydraulic telescopic member, 104 - first traction plate, 105 - second traction plate, 106 - first connecting rod, 107 - second locking plate, 108 - first locking plate, 109 - second connecting rod, 110 - first pressure sensor, 111 - vertical rod, 112 - top plate, 113 - second hydraulic telescopic member, 114 - pressing rod, 201 - fixing rod, 202 - upper limit plate, 203 - mounting rod, 204 - lower supporting plate, 205 - roller, 206 - third hydraulic telescopic member, 207 - clamping plate, 301 - mounting opening, 302 - clamping member, 303 - mounting shaft, 304 - rubber sheet, 305 - dial, 306 - rubber pad, 307 - spiked block, 401 - mounting seat, 402 - supporting block, 403 - second pressure sensor, 501 - fixing frame, 502 - side rod, 503 - sleeve, 504 - rubber sleeve, 505 - lifting rod, 506 - positioning plate, 507 - displacement plate, 601 - center plate, 602 - locking rod, 603 - retaining piece, 604 - spring, 605 - electromagnet, 606 - abutting plate, 607 - rubber plate, 608 - attracting member, 701 - electric slideway, 702 - sliding block, 703 - protective frame. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] As Figures 1-9 shown, a device for detecting the tensile property of a sheet material provided by an embodiment of the present invention includes a detection table 101. Fixed plates 102 are fixedly arranged on both sides near the upper surface of the detection table 101. A fixing opening is formed in the outer wall of the fixed plate 102. A first hydraulic telescopic member 103 is movably connected in the fixing opening. A first traction plate 104 is fixedly arranged at the telescopic end of the first hydraulic telescopic member 103. A first connecting rod 106 is fixedly arranged on one side outer wall of the first traction plate 104. The end of the first connecting rod 106 is fixedly connected to a second traction plate 105. A second connecting rod 109 penetrates and is movably arranged on the outer wall of the second traction plate 105. One end of the second connecting rod 109 is fixedly connected to a second locking plate 107. The other end of the second connecting rod 109 is fixedly connected to a first locking plate 108. The first locking plate 108 is located between the first traction plate 104 and the second traction plate 105. A first pressure sensor 110 is fixedly arranged on the outer wall of the second traction plate 105 close to the first locking plate 108. A vertical rod 111 is also fixedly arranged on the upper surface of the detection table 101. A top plate 112 is fixedly arranged at the top of the vertical rod 111. A second hydraulic telescopic member 113 penetrates and is fixedly arranged on the outer wall of the top plate 112. A pressing rod 114 is fixedly arranged at the telescopic end of the second hydraulic telescopic member 113. It further includes: a locking mechanism fixedly arranged on one side outer wall of the second locking plate 107 for clamping the sheet material to be detected; a material supporting mechanism arranged on the upper surface of the detection table 101 for assisting in supporting the sheet material to be detected; a positioning mechanism arranged in the detection table 101 for determining the bending degree of the sheet material before it is broken by the pressing rod 114.

[0030] The sheet to be detected can be placed on the material supporting mechanism, and then the first hydraulic telescopic member 103 can drive the first traction plate 104 to move, so that the first traction plate 104 pushes the first locking plate 108 and the second locking plate 107 to move. Further, the locking mechanism on the outer wall of the second locking plate 107 moves to the outside of the sheet to be detected. The sheet to be detected can be clamped through the locking mechanism. Then, the first hydraulic telescopic member 103 contracts to pull the first traction plate 104. The first traction plate 104 drives the second traction plate 105 to move through the first connecting rod 106. The second traction plate 105 drives the first locking plate 108 to move. The first locking plate 108 drives the second locking plate 107 to move through the second connecting rod 109. The second locking plate 107 drives the locking mechanism to move, which can play a role in pulling the sheet to be detected. During the pulling process, the pressure sensor 110 between the second traction plate 105 and the first locking plate 108 is squeezed, which can achieve the purpose of detecting the pulling force. Until the sheet breaks, the maximum pressure value detected by the pressure sensor 110 can reflect the tensile property of the sheet. Further, the second hydraulic telescopic member 113 can also drive the pressing rod 114 to move downward, so that the pressing rod 114 presses the sheet to be detected above the material supporting mechanism. And through the positioning mechanism, the bending degree of the sheet before being broken by the pressing rod 114 can be determined, thereby achieving the purpose of detecting the bending property of the sheet, and the use effect is better.

[0031] As an embodiment of the present invention, please refer to Figure 3 , Figure 4 and Figure 5 , the locking mechanism includes a lower support plate 204. An installation rod 203 is fixedly installed above the lower support plate 204, and an upper limit plate 202 is fixedly arranged at the top of the installation rod 203. Fixed rods 201 are fixedly arranged on the outer walls of one side of the lower support plate 204 and the upper limit plate 202, and the ends of the fixed rods 201 are connected to the outer wall of the second locking plate 107. A roller 205 is also fixedly arranged on the lower surface of the lower support plate 204, which can assist the lower support plate 204 to move above the detection table 101. Third hydraulic telescopic members 206 are fixedly arranged through the outer walls of the lower support plate 204 and the upper limit plate 202, and a clamping plate 207 is fixedly connected to the telescopic end of the third hydraulic telescopic member 206. A clamping assembly is also arranged in the clamping plate 207. When it is necessary to clamp the sheet to be detected, the third hydraulic telescopic member 206 can be used to drive the clamping plate 207 to move, and the sheet can be clamped through the clamping assembly on the clamping plate 207, which is very convenient to use.

[0032] As an embodiment of the present invention, please refer to Figure 3 , Figure 4 and Figure 5, the clamping assembly includes mounting openings 301 equidistantly formed in the outer wall of the clamping plate 207. A mounting shaft 303 is rotatably arranged in the mounting opening 301, and a clamping member 302 is fixedly arranged on the outer wall of the mounting shaft 303. Rubber sheets 304 are fixedly arranged on both inner walls of the mounting opening 301, and the clamping member 302 is in contact with the rubber sheets 304 to keep the clamping member 302 stable after rotation. A rubber pad 306 is adhesively attached to the outer wall of the clamping member 302. Spikes 307 distributed in a rectangular array are arranged on the outer wall of the clamping member 302 on the side away from the rubber pad 306. A limiting opening is further formed in the outer wall of the clamping plate 207, and the end of the mounting shaft 303 is located in the limiting opening. A dial 305 is fixedly arranged at the end of the mounting shaft 303, and the dial 305 is located in the limiting opening. When the clamping plates 207 approach each other, the rubber pad 306 on the outer wall of the clamping member 302 will be in contact with the outer wall of the plate, enabling non-destructive clamping detection of the plate. When the surface of the plate to be detected is relatively smooth and the rubber pad 306 cannot meet the clamping operation requirements, the dial 305 can be toggled to drive the mounting shaft 303 to rotate, causing the clamping member 302 to rotate together, and enabling the spikes 307 on the outside of the clamping member 302 to face the plate to be detected. When the clamping member 302 clamps the plate to be detected, the spikes 307 can penetrate into the plate to be detected, thereby greatly improving the clamping stability and achieving better use effects.

[0033] As an embodiment of the present invention, please refer to Figure 1 and Figure 2 , the material supporting mechanism includes a mounting base 401 fixedly arranged on the upper surface of the detection table 101. A supporting block 402 is movably arranged in the mounting base 401. A pressure sensor II 403 is arranged between the bottom inner wall of the mounting base 401 and the supporting bracket. The plate to be detected can be placed on the supporting block 402. When the pressing rod 114 presses down the plate, the pressure sensor II 403 can detect the pressure on the plate, achieving better use effects.

[0034] As an embodiment of the present invention, please refer to Figure 7 and Figure 8, the positioning mechanism includes a fixed frame 501. A positioning opening is formed in the outer wall of the detection table 101, and the fixed frame 501 is fixedly installed in the positioning opening. Symmetrically distributed side rods 502 are fixedly installed on the inner wall of the fixed frame 501, and sleeves 503 are fixedly arranged at the ends of the side rods 502. A rubber sleeve 504 is fitted on the inner wall of the sleeve 503, and a lifting rod 505 is slidably arranged in the rubber sleeve 504. Under the frictional force of the rubber sleeve 504, the lifting rod 505 will only move in the sleeve 503 under the action of an external force. A positioning plate 506 is fixedly arranged at the top of the lifting rod 505, and a movable opening is formed in the outer wall of the positioning plate 506. A displacement plate 507 is movably arranged in the movable opening. A locking component is also arranged below the positioning plate 506, which is used to lock the position of the displacement plate 507 and release the lock on the displacement plate 507 and prevent the positioning plate 506 from moving further down when the plate breaks. When the pressing rod 114 moves down to cause the plate to bend, it will contact the displacement plate 507 and cause the displacement plate 507 to move down. At this time, the locking component is in a state of locking the displacement plate 507 in the positioning plate 506, which will cause the positioning plate 506 to move down together until the pressure value detected by the second pressure sensor 403 becomes smaller, indicating that the plate has broken at this time. Then, it can prompt the locking component to release the lock on the displacement plate 507 and prevent the positioning plate 506 from moving further down. The maximum bending degree of the plate before breaking can be determined by the position of the positioning plate 506 at this time, and the use effect is better.

[0035] As an embodiment of the present invention, please refer to Figure 7 and Figure 8, the locking component includes a central plate 601 fixedly arranged on the lower surface of the positioning plate 506. A locking rod 602 is movably connected through the outer wall of the central plate 601. A locking groove is formed in the outer wall of the displacement plate 507, and the end of the locking rod 602 is located in the locking groove. A retaining piece 603 is fixedly arranged on the outer wall of the locking rod 602, and a spring 604 is sleeved outside the locking rod 602. One end of the spring 604 is connected to the outer wall of the central plate 601, and the other end of the spring 604 is connected to the retaining piece 603. An abutting plate 606 is fixedly arranged at the end of the locking rod 602 away from the central plate 601, and a rubber plate 607 is fixedly arranged on the outer wall of the abutting plate 606. An electromagnet 605 is also fixedly arranged on the outer wall of the central plate 601. An attracting member 608 that adsorbs to the electromagnet 605 is fixedly arranged on the outer wall of the abutting plate 606 close to the electromagnet 605. When the electromagnet 605 works, it is in a state of adsorbing the attracting member 608. At this time, the end of the locking rod 602 is inserted into the locking groove on the outer wall of the displacement plate 507, and the positioning plate 506 will move downward together with the displacement plate 507. The pressure sensor II 403 is electrically connected to a processor, and the processor is electrically connected to the control switch of the electromagnet 605. When the pressure value detected by the pressure sensor II 403 drops instantaneously, it indicates that the sheet material is in a fractured state at this time. Then, the electromagnet 605 can be immediately triggered to release the locking of the attracting member 608. Under the reset action of the spring 604, the locking rod 602 can be quickly moved out of the locking groove, releasing the locking of the displacement plate 507, and making the rubber plate 607 on the outer wall of the abutting plate 606 fit with the inner wall of the fixed frame 501, so that the downward pressure generated by the pressing rod 114 due to the second hydraulic telescopic member 113 not stopping telescoping in time will only act on the displacement plate 507 and cannot drive the positioning plate 506 to move further downward. The maximum bending degree of the sheet material before fracture can be accurately judged according to the position of the positioning plate 506 at this time, and the detection result is more accurate and the use effect is better.

[0036] As an embodiment of the present invention, please refer to Figure 1 , Figure 6 and Figure 9 , electric slides 701 are fixedly arranged on the lower surface of the detection table 101 and the upper surface of the top plate 112, and sliding blocks 702 are slidably arranged in the electric slides 701. A protective frame 703 is fixedly arranged on the outer wall of the sliding block 702. During the detection process, the protective frame 703 can be driven to move by the sliding block 702 in the electric slide 701 to shield the sheet material, which can play a certain protective role and the use effect is better.

[0037] During use, the plate to be detected can be placed on the material supporting mechanism. Then, the first hydraulic telescopic member 103 can drive the first traction plate 104 to move, so that the first traction plate 104 pushes the first locking plate 108 and the second locking plate 107 to move. Further, the locking mechanism on the outer wall of the second locking plate 107 moves to the outside of the plate to be detected, and the plate to be detected can be clamped through the locking mechanism. Then, the first hydraulic telescopic member 103 contracts to pull the first traction plate 104. The first traction plate 104 drives the second traction plate 105 to move through the first connecting rod 106. The second traction plate 105 drives the first locking plate 108 to move. The first locking plate 108 drives the second locking plate 107 to move through the second connecting rod 109. The second locking plate 107 drives the locking mechanism to move, which can play a role in pulling the plate to be detected. During the pulling process, the pressure sensor 110 between the second traction plate 105 and the first locking plate 108 is squeezed, which can be used to detect the pulling force. Until the plate breaks, the maximum pressure value detected by the pressure sensor 110 can reflect the tensile property of the plate. Further, the second hydraulic telescopic member 113 can also be used to drive the pressing rod 114 to move downward, so that the pressing rod 114 presses the plate to be detected above the material supporting mechanism. And the bending degree of the plate before being broken by the pressing rod 114 can be determined through the positioning mechanism, so as to achieve the purpose of detecting the bending property of the plate, and the use effect is better.

[0038] It should be particularly noted that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. The description mode of this specification is only for clarity. Those skilled in the art should regard 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 plate tensile performance testing device, comprising a testing platform, characterized in that: The upper surface of the detection platform is fixedly provided with vertical plates at positions near both sides, and the outer wall of the vertical plate is provided with a fixed opening, the fixed opening is movably connected with a first hydraulic telescopic member, and the telescopic end of the first hydraulic telescopic member is fixedly provided with a first traction plate, a first connecting rod is fixedly provided on one side outer wall of the first traction plate, and the end of the first connecting rod is fixedly connected to the second traction plate, the outer wall of the second traction plate is movably provided with a second connecting rod, one end of the second connecting rod is fixedly connected to the second locking plate, and the other end of the second connecting rod is fixedly connected to the first locking plate, the first locking plate is located between the first traction plate and the second traction plate, and a pressure sensor 1 is fixedly provided on the outer wall of the second traction plate near the first locking plate, the upper surface of the detection platform is also fixedly provided with a vertical pole, and the top of the vertical pole is fixedly provided with a top plate, the outer wall of the top plate is fixedly provided with a second hydraulic telescopic member, and the telescopic end of the second hydraulic telescopic member is fixedly provided with a pressure rod, and also includes: A locking mechanism, which is fixedly arranged on an outer wall of one side of the second locking plate and is used to clamp the plate to be tested; A material supporting mechanism, which is arranged on the upper surface of the testing table and is used to assist in supporting the plate to be tested; The positioning mechanism is arranged in the detection platform and is used to determine the bending degree of the plate before it is broken by the pressure rod.

2. A plate tensile performance testing device according to claim 1, characterized in that: The locking mechanism includes a lower support plate, a mounting rod is fixedly installed on the upper part of the lower support plate, and an upper limit plate is fixedly arranged on the top of the mounting rod, a fixing rod is fixedly arranged on one side outer wall of the lower support plate and the upper limit plate, and the end of the fixing rod is connected to the outer wall of the second locking plate, a roller is also fixedly arranged on the lower surface of the lower support plate, and a third hydraulic telescopic component is fixedly arranged on the outer wall of the lower support plate and the upper limit plate, and the telescopic end of the third hydraulic telescopic component is fixedly connected to a clamping plate, and a clamping assembly is also arranged in the clamping plate.

3. A plate tensile performance testing device according to claim 2, characterized in that: The clamping assembly includes mounting openings equidistantly arranged on the outer wall of the splint, a mounting shaft is rotatably arranged in the mounting opening, and a clamping piece is fixedly arranged on the outer wall of the mounting shaft, rubber sheets are fixedly arranged on the inner walls on both sides of the mounting opening, and the clamping piece and the rubber sheet are in contact with each other, a rubber pad is bonded to the outer wall of the clamping piece, and spike blocks distributed in a rectangular array are arranged on the outer wall of the clamping piece on the side away from the rubber pad, a limiting opening is also arranged on the outer wall of the splint, and the end of the mounting shaft is located in the limiting opening, and a thumbwheel is fixedly arranged on the end of the mounting shaft, and the thumbwheel is located in the limiting opening.

4. A plate tensile performance testing device according to claim 1, characterized in that: The supporting mechanism comprises a mounting seat fixedly arranged on the upper surface of the detection table, and a supporting block is movably arranged in the mounting seat, and a second pressure sensor is arranged between the bottom inner wall of the mounting seat and the bracket.

5. A plate tensile performance testing device according to claim 4, characterized in that: The positioning mechanism includes a fixed frame, a positioning opening is provided on the outer wall of the detection platform, and the fixed frame is fixedly installed in the positioning opening, the inner wall of the fixed frame is fixedly installed with symmetrically distributed side rods, and the ends of the side rods are fixedly provided with sleeves, the inner wall of the sleeve is fitted with a rubber sleeve, and a lifting rod is slidably provided in the rubber sleeve, a positioning plate is fixedly provided on the top of the lifting rod, and a movable opening is provided on the outer wall of the positioning plate, and a displacement plate is movably provided in the movable opening, and a locking assembly is also provided under the positioning plate for locking the position of the displacement plate, and releasing the lock of the displacement plate when the plate is broken and preventing the positioning plate from moving further downward.

6. A plate tensile performance testing device according to claim 5, characterized in that: The locking assembly includes a center plate fixedly arranged on the lower surface of the positioning plate, a locking rod movably connected to the outer wall of the center plate, a locking groove is opened on the outer wall of the displacement plate, and the end of the locking rod is located in the locking groove, a baffle is fixedly arranged on the outer wall of the locking rod, and a spring is sleeved on the outer side of the locking rod, one end of the spring is connected to the outer wall of the center plate, and the other end of the spring is connected to the baffle, an end of the locking rod away from the center plate is fixedly arranged with a back plate, and the outer wall of the back plate is fixedly arranged with a rubber plate, the outer wall of the center plate is also fixedly arranged with an electromagnet, and the outer wall of the back plate on the side close to the electromagnet is fixedly arranged with an adsorption member adsorbed by the electromagnet.

7. A plate tensile performance testing device according to claim 1, characterized in that: The lower surface of the detection platform and the upper surface of the top plate are both fixedly provided with electric slideways, and a sliding block is slidably provided in the electric slideways, and a protective frame is fixedly provided on the outer wall of the sliding block.

Images