Device for detecting tensile property of plate

Abstract

The invention relates to the technical field of plate detection, in particular to a plate tensile property detection device which comprises a detection table, vertical plates are fixedly arranged at the positions, close to the two sides, of the upper surface of the detection table, fixing openings are formed in the outer walls of the vertical plates, and first hydraulic telescopic pieces are movably connected into the fixing openings; a first traction plate is fixedly arranged at the telescopic end of the first hydraulic telescopic part, a first connecting rod is fixedly arranged on the outer wall of one side of the first traction plate, a second traction plate is fixedly connected to the end of the first connecting rod, and a second connecting rod is movably arranged on the outer wall of the second traction plate in a penetrating mode. According to the device, the tensile property of the plate can be rapidly detected, the second hydraulic telescopic piece can drive the pressure applying rod to move downwards, so that the pressure applying rod downwards presses the to-be-detected plate above the material supporting mechanism, the bending degree of the plate before the plate is pressed to be broken by the pressure applying rod can be determined through the positioning mechanism, and then the purpose of detecting the bending property of the plate is achieved; 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: 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. 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 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.

[0006] As a further solution of the present invention: the locking mechanism includes a lower support plate, a mounting rod is fixedly installed on the top 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 walls 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.

[0007] As a further solution of the present invention: 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 the outer wall of the clamping piece on the side away from the rubber pad is provided with thorn blocks distributed in a rectangular array, the outer wall of the splint is also provided with a limiting opening, and the end of the mounting shaft is located in the limiting opening, and a dial wheel is fixedly arranged on the end of the mounting shaft, and the dial wheel is located in the limiting opening.

[0008] As a further solution of the present invention: the supporting mechanism includes 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.

[0009] As a further solution of the present invention: the positioning mechanism includes a fixed frame, the outer wall of the detection platform is provided with a positioning opening, and the fixed frame is fixedly installed in the positioning opening, the inner wall of the fixed frame is fixedly provided 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 arranged in the rubber sleeve, the top of the lifting rod is fixedly provided with a positioning plate, and the outer wall of the positioning plate is provided with a movable opening, and a displacement plate is movably arranged in the movable opening, and a locking assembly is also arranged under the positioning plate, which is used to lock the position of the displacement plate and release the lock of the displacement plate and prevent the positioning plate from moving further downward when the plate is broken.

[0010] As a further scheme of the present invention: the locking assembly includes a center plate fixedly arranged on the lower surface of the positioning plate, the outer wall of the center plate is penetrated by a locking rod movably connected, the outer wall of the displacement plate is provided with a locking groove, and the end of the locking rod is located in the locking groove, the outer wall of the locking rod is fixedly provided with a baffle, and the outer side of the locking rod is sleeved with a spring, 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, the end of the locking rod away from the center plate is fixedly provided with a back plate, and the outer wall of the back plate is fixedly provided with a rubber plate, the outer wall of the center plate is also fixedly provided with an electromagnet, and the outer wall of the back plate on the side close to the electromagnet is fixedly provided with an adsorption member that adsorbs to the electromagnet.

[0011] As a further solution of the present invention: an electric slide is fixedly provided on the lower surface of the detection platform and the upper surface of the top plate, and a sliding block is slidably provided in the electric slide, and a protective frame is fixedly provided on the outer wall of the sliding block.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a plate tensile performance testing device. The plate to be tested can be placed on a supporting mechanism, and then the first traction plate can be driven to move by a first hydraulic telescopic member, so that the first traction plate pushes the first locking plate and the second locking plate to move, thereby causing the locking mechanism of the outer wall of the second locking plate to move to the outside of the plate to be tested. The plate to be tested can be clamped by the locking mechanism, and then the first traction plate is pulled by contraction of the first hydraulic telescopic member, the first traction plate drives the second traction plate to move by the first connecting rod, the second traction plate drives the first locking plate to move, and the first locking plate drives the second locking plate to move by the second connecting rod. The second locking plate drives the locking mechanism to move, so as to pull the plate to be tested. During the pulling process, the pressure sensor between the second traction plate and the first locking plate is squeezed, which can detect the pulling force. Until the plate breaks, the maximum pressure value detected by the pressure sensor can reflect the tensile performance of the plate. Furthermore, the pressure rod can be driven downward by the second hydraulic telescopic part to press the plate to be tested above the supporting mechanism, and the positioning mechanism can determine the bending degree of the plate before it is broken by the pressure rod, thereby achieving the purpose of detecting the bending resistance of the plate, and the use effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure from a first perspective of a plate tensile performance testing device provided by an embodiment of the present invention; Figure 2 A schematic diagram of a half-section structure of a plate tensile performance testing device provided by an embodiment of the present invention; Figure 3A schematic diagram of the structure of a locking mechanism in a plate tensile performance testing device provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a clamping assembly in a plate tensile performance testing device provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a clamping member in a plate tensile performance testing device provided by an embodiment of the present invention; Figure 6 A schematic diagram of the structure from a second viewing angle of a plate tensile performance testing device provided by an embodiment of the present invention; Figure 7 A schematic structural diagram of a positioning mechanism in a plate tensile performance testing device provided by an embodiment of the present invention; Figure 8 A schematic structural diagram of a locking assembly in a plate tensile performance testing device provided by an embodiment of the present invention; Fig. 9 A schematic structural diagram of a plate tensile performance testing device from a third viewing angle provided in an embodiment of the present invention.

[0014] In the figure: 101-testing 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-pressure sensor 1, 111-vertical rod, 112-top plate, 113-second hydraulic telescopic member, 114-pressure rod, 201-fixed rod, 202-upper limit plate, 203-mounting rod, 204-lower support plate, 205-roller, 206-third hydraulic telescopic member, 207-clamping plate, 301-installation port, 302-clamping Parts, 303-installation shaft, 304-rubber sheet, 305-push wheel, 306-rubber pad, 307-thorn block, 401-mounting seat, 402-support block, 403-pressure sensor 2, 501-fixed 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-block, 604-spring, 605-electromagnet, 606-retaining plate, 607-rubber plate, 608-adsorption part, 701-electric slide, 702-sliding block, 703-protective frame. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0016] like Figure 1-Figure 9As shown, a plate tensile performance testing device provided by an embodiment of the present invention includes a testing platform 101, and vertical plates 102 are fixedly arranged at positions near both sides of the upper surface of the testing platform 101, and the outer wall of the vertical plate 102 is provided with a fixing hole, in which a first hydraulic telescopic member 103 is movably connected, and 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 the outer wall of one side of the first traction plate 104, and the end of the first connecting rod 106 is fixedly connected to a second traction plate 105, a second connecting rod 109 is movably arranged through 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, and the other end of the second connecting rod 109 is fixedly connected to a first locking plate 108, and the first locking plate 108 is located at the first Between the traction plate 104 and the second traction plate 105, a pressure sensor 110 is fixedly provided on the outer wall of one side of the second traction plate 105 close to the first locking plate 108, and a vertical pole 111 is also fixedly provided on the upper surface of the detection platform 101, and a top plate 112 is fixedly provided on the top of the vertical pole 111, and a second hydraulic telescopic member 113 is fixedly provided on the outer wall of the top plate 112, and a pressure rod 114 is fixedly provided on the telescopic end of the second hydraulic telescopic member 113, and also includes: a locking mechanism, the locking mechanism is fixedly provided on the outer wall of one side of the second locking plate 107, and is used to clamp the plate to be detected; a supporting mechanism, the supporting mechanism is provided on the upper surface of the detection platform 101, and is used to auxiliary support the plate to be detected; a positioning mechanism, the positioning mechanism is provided in the detection platform 101, and is used to determine the bending degree of the plate before it is broken by the pressure rod 114.

[0017] The plate to be inspected can be placed on the supporting mechanism, and then the first hydraulic telescopic member 103 can be used to 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, thereby making the locking mechanism of the outer wall of the second locking plate 107 move to the outside of the plate to be inspected, and the plate to be inspected can be clamped by the locking mechanism, and then the first hydraulic telescopic member 103 is contracted 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, and 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, so as to pull the plate to be tested. During the pulling process, the pressure sensor 110 between the second traction plate 105 and the first locking plate 108 is squeezed, which can detect the pulling force. Until the plate breaks, the maximum pressure value detected by the pressure sensor 110 can reflect the tensile performance of the plate. Furthermore, the second hydraulic telescopic member 113 can be used to drive the pressure rod 114 to move downward, so that the pressure rod 114 presses down the plate to be tested above the supporting mechanism, and the positioning mechanism can determine the bending degree of the plate before it is broken by the pressure rod 114, thereby achieving the purpose of detecting the bending resistance of the plate, and the use effect is better.

[0018] 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, a mounting rod 203 is fixedly installed on the top of the lower support plate 204, and an upper limit plate 202 is fixedly arranged on the top of the mounting rod 203. A fixing rod 201 is fixedly arranged on the outer wall of one side of the lower support plate 204 and the upper limit plate 202, and the end of the fixing rod 201 is 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 platform 101. The outer walls of the lower support plate 204 and the upper limit plate 202 are both penetrated and fixedly provided with a third hydraulic telescopic member 206, and the telescopic end of the third hydraulic telescopic member 206 is fixedly connected with a clamping plate 207. A clamping assembly is also arranged in the clamping plate 207. When it is necessary to clamp the plate to be detected, the clamping plate 207 can be driven to move by the third hydraulic telescopic member 206, and the plate can be clamped by the clamping assembly on the clamping plate 207, which is very convenient to use.

[0019] As an embodiment of the present invention, please refer to Figure 3 , Figure 4 and Figure 5The clamping assembly includes a mounting opening 301 equidistantly provided on the outer wall of the clamping plate 207, a mounting shaft 303 is rotatably provided in the mounting opening 301, and a clamping member 302 is fixedly provided on the outer wall of the mounting shaft 303, rubber sheets 304 are fixedly provided on the inner walls of both sides of the mounting opening 301, and the clamping member 302 and the rubber sheet 304 are in contact with each other to enable the clamping member 302 to remain stable after rotation, a rubber pad 306 is bonded to the outer wall of the clamping member 302, and a thorn block 307 distributed in a rectangular array is provided on the outer wall of the clamping member 302 away from the rubber pad 306, a limiting opening is also provided on the outer wall of the clamping plate 207, and the end of the mounting shaft 303 is located in the limiting opening, and the mounting shaft 303 is fixedly provided on the inner wall of the two sides of the mounting opening 301. A dial wheel 305 is fixedly set at the end of 03, and the dial wheel 305 is located in the limit opening. When the clamps 207 are close to each other, the rubber pad 306 on the outer wall of the clamping member 302 will fit with the outer wall of the plate, so as to realize 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, the dial wheel 305 can be turned to drive the mounting shaft 303 to rotate, so that the clamping member 302 rotates together, and the thorn block 307 on the outside of the clamping member 302 is prompted to face the plate to be detected. When the clamping member 302 moves the plate to be detected, the thorn block 307 can pierce into the plate to be detected, thereby greatly improving the clamping stability and achieving better use effect.

[0020] As an embodiment of the present invention, please refer to Figure 1 and Figure 2 The supporting mechanism includes a mounting seat 401 fixedly arranged on the upper surface of the testing platform 101, and a supporting block 402 is movably arranged in the mounting seat 401, and a second pressure sensor 403 is arranged between the bottom inner wall of the mounting seat 401 and the bracket. The plate to be tested can be placed on the supporting block 402. When the pressure rod 114 presses down the plate, the pressure degree of the plate can be detected through the second pressure sensor 403, and the use effect is better.

[0021] As an embodiment of the present invention, please refer to Figure 7 and Figure 8The positioning mechanism includes a fixed frame 501, a positioning opening is provided on the outer wall of the testing platform 101, and the fixed frame 501 is fixedly installed in the positioning opening, the inner wall of the fixed frame 501 is fixedly installed with symmetrically distributed side rods 502, and the ends of the side rods 502 are fixedly provided with sleeves 503, the inner wall of the sleeve 503 is fitted with a rubber sleeve 504, and a lifting rod 505 is slidably provided in the rubber sleeve 504, under the friction force of the rubber sleeve 504, the lifting rod 505 will move in the sleeve 503 only under the action of external force, a positioning plate 506 is fixedly provided on the top of the lifting rod 505, and a movable opening is provided on the outer wall of the positioning plate 506, a displacement plate 507 is movably provided in the movable opening, and a locking group is also provided below the positioning plate 506. The component is used to lock the position of the displacement plate 507 and unlock the displacement plate 507 and prevent the positioning plate 506 from moving further downward when the plate breaks. When the pressure rod 114 moves downward to bend the plate, it will contact the displacement plate 507 and prompt the displacement plate 507 to move downward. 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 downward together until the pressure value detected by the pressure sensor 403 becomes smaller, indicating that the plate has broken at this time. The locking component can then unlock the displacement plate 507 and prevent the positioning plate 506 from moving further downward. The maximum curvature of the plate before it breaks can be determined by the position of the positioning plate 506 at this time, resulting in a better use effect.

[0022] As an embodiment of the present invention, please refer to Figure 7 and Figure 8The locking assembly includes a center plate 601 fixedly arranged on the lower surface of the positioning plate 506, a locking rod 602 is movably connected to the outer wall of the center plate 601, a locking groove is opened on the outer wall of the displacement plate 507, and the end of the locking rod 602 is located in the locking groove, a blocking piece 603 is fixedly arranged on the outer wall of the locking rod 602, and a spring 604 is sleeved on the outer side of the locking rod 602, one end of the spring 604 is connected to the outer wall of the center plate 601, and the other end of the spring 604 is connected to the blocking piece 603, the end of the locking rod 602 away from the center plate 601 is fixedly provided with a plate 606, and the outer wall of the plate 606 is fixedly provided with a rubber plate 607, the outer wall of the center plate 601 is also fixedly provided with an electromagnet 605, and the outer wall of the plate 606 close to the electromagnet 605 is fixedly provided with an adsorption member 608 adsorbed with the electromagnet 605. When the electromagnet 605 is working, it is in a state of adsorbing the adsorption member 608. At this time, the end of the locking rod 602 is plugged into the displacement plate In the locking groove of the outer wall of 507, the positioning plate 506 will move downward with the displacement plate 507, the pressure sensor 403 is electrically connected to the processor, and the processor and the control switch of the electromagnet 605 are electrically connected. When the pressure value detected by the pressure sensor 403 drops instantly, it indicates that the plate is in a broken state at this time, and the electromagnet 605 can be immediately triggered to release the lock of the adsorption component 608. Under the resetting action of the spring 604, the locking rod 602 can be quickly moved out of the locking groove, the lock of the displacement plate 507 is released, and the rubber plate 607 on the outer wall of the plate 606 is fit with the inner wall of the fixed frame 501, so that the second hydraulic telescopic component 113 does not stop telescoping in time, so that the downward pressure generated by the pressure rod 114 will only act on the displacement plate 507 and can no longer drive the positioning plate 506 to move further downward. The maximum curvature of the plate before breaking can be accurately judged by the position of the positioning plate 506 at this time, and the detection result is more accurate and the use effect is better.

[0023] As an embodiment of the present invention, please refer to Figure 1 , Figure 6 and Fig. 9 An electric slide 701 is fixedly provided on the lower surface of the inspection table 101 and the upper surface of the top plate 112, and a sliding block 702 is slidably provided in the electric slide 701, and a protective frame 703 is fixedly provided on the outer wall of the sliding block 702. During the inspection process, the protective frame 703 can be driven to move by the sliding block 702 in the electric slide 701 to shield the plate, which can play a certain protective role and achieve a better use effect.

[0024] When in use, the plate to be inspected can be placed on the supporting mechanism, and then the first hydraulic telescopic member 103 can be used to 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, thereby making the locking mechanism of the outer wall of the second locking plate 107 move to the outside of the plate to be inspected, and the plate to be inspected can be clamped by the locking mechanism, and then the first hydraulic telescopic member 103 is contracted 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, and the first locking plate 108 drives the second locking plate 107 through the second connecting rod 109. Move, the second locking plate 107 drives the locking mechanism to move, so as to pull the plate to be tested. During the pulling process, the pressure sensor 110 between the second traction plate 105 and the first locking plate 108 is squeezed, which can detect the pulling force. Until the plate breaks, the maximum pressure value detected by the pressure sensor 110 can reflect the tensile performance of the plate. Furthermore, the second hydraulic telescopic member 113 can drive the pressure rod 114 to move downward, so that the pressure rod 114 presses down the plate to be tested above the supporting mechanism, and the positioning mechanism can determine the bending degree of the plate before it is broken by the pressure rod 114, thereby achieving the purpose of detecting the bending resistance of the plate, and the use effect is better.

[0025] It should be particularly noted that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods 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.

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