Metal material plastic yield strength detection device

Abstract

The invention provides a metal material plastic yield strength detection device, and belongs to the technical field of metal detection. The detection table is arranged on one side of the supporting table through screws, and sliding grooves are formed in the two sides of the inner wall of the detection table. During use, the output end of a hydraulic rod is controlled to move downwards, a first connecting base is further driven by a pressing rod to move downwards, the distance between two transmission plates can be adjusted, and the detection table is convenient to use; the two sides of a metal plate needing to be detected are placed below the two pressing plates respectively, the output ends of the two electric push rods are controlled to move downwards so that the two pressing plates can be pressed on the metal plate, then the output ends of the hydraulic rods are controlled to move downwards so that the two connecting plates can move oppositely, and the two pressing plates pull the two sides of the metal plate. The two sides of the metal plate are pulled, so that the stress distribution condition of the metal plate under stress in an actual working condition can be simulated, and the yield strength and the plastic property of the metal material can be tested more truly.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of metal detection, and in particular to a plastic yield strength detection device for metal materials. BACKGROUND

[0002] The plastic yield strength of metal materials is an important indicator for measuring the deformation capacity and stability of metals under stress, and is of great significance to the structural design, production process and safety evaluation of metals. In practical applications, metal materials will undergo varying degrees of plastic deformation when subjected to external forces. The yield strength is the critical point at which significant plastic deformation of metal materials begins. In order to ensure that the performance of metal materials meets engineering requirements, it is crucial to accurately measure their yield strength and plastic properties.

[0003] However, in the detection of metal plate yield strength, some detection devices only apply stress by pulling one side of the metal plate. This single-sided stretching method cannot effectively simulate the stress state of metal materials under actual working conditions, because in practical applications, metal materials are subjected to uniform tension on both sides. In addition, the mechanical sensors in some devices are not effectively protected and are easily exposed to the external environment, leading to damage and affecting the accuracy of the detection results. SUMMARY

[0004] The plastic yield strength detection device for metal materials provided by the present application can simulate the stress distribution of metal plates under actual working conditions by pulling both sides of the metal plate during detection, more accurately testing the yield strength and plastic properties of metal materials. When not in use, the mechanical sensor is protected to prevent damage caused by exposure to the external environment, thereby improving the accuracy of the detection results. When using the detection device, the detected portion is cleaned to improve the accuracy of the detection results.

[0005] To achieve the above purpose, the present application adopts the following technical scheme: a plastic yield strength detection device for metal materials, comprising: a support table; a detection table arranged on one side of the support table by means of screws, and two sides of the inner wall of the detection table are provided with sliding grooves, and the detection table can be detached from the support table by rotating the screws; two transmission plates slidingly arranged on the inner walls of the two sliding grooves, and one side of each of the two transmission plates is fixedly provided with a connecting plate, and the two connecting plates move to drive the two transmission plates to move; a bracket fixedly arranged on one side of the support table, and a hydraulic rod is installed at the center of one side of the bracket, and the bracket supports the hydraulic rod, so that the hydraulic rod is installed above the support table; The pressing rod is fixedly arranged on the output end of the hydraulic rod, and one side of the pressing rod is fixedly arranged with a first connecting seat; the distance between the two transmission plates can be adjusted by controlling the downward movement of the output end of the hydraulic rod and further by driving the first connecting seat to move downward through the pressing rod.

[0006] As a further improved scheme of the present application: two electric push rods are arranged at the center of one side of the two connecting plates, and a pressing plate is fixedly arranged on the output end of each electric push rod; two first horizontal rods are fixedly arranged on the inner wall of the first connecting seat, and a supporting plate is movably arranged on the outer surface of each first horizontal rod; a second horizontal rod is movably arranged on one side of each supporting plate, and a second connecting seat is fixedly arranged on the two ends of each second horizontal rod; the second connecting seat is fixedly arranged on the center of one side of each connecting plate; the two supporting plates are rotatable about the two first horizontal rods or the two second horizontal rods, and the two transmission plates are slidable on the inner wall of the two sliding grooves; when the first connecting seat moves downward, the two supporting plates are pressed, and the lower ends of the two supporting plates further push the two second connecting seats, so that the two connecting plates drive the two transmission plates to move in opposite directions; when the first connecting seat moves upward, the two supporting plates are pulled, and the lower ends of the two supporting plates further pull the two second connecting seats, so that the two connecting plates drive the two transmission plates to move in opposite directions.

[0007] As a further improved scheme of the present application: a protection box is fixedly arranged on one side of the detection table, and square plates are fixedly arranged on the inner walls of the two sides of the protection box; a first spring is fixedly arranged on one side of each square plate; an installation plate is fixedly arranged on one end of each first spring; the material yield strength of the metal plate is detected by the mechanical sensor; the mechanical sensor is arranged in the protection box, so that the mechanical sensor is prevented from being damaged by being exposed to the outside; the two first springs are pressed by the installation plate and the two square plates, and the two first springs have elastic force.

[0008] As a further improved scheme of the present application: a mechanical sensor is arranged on the inner wall of the installation plate, and a display plate is arranged on one side of the supporting table; the mechanical sensor is connected to the display plate through a transmission line; the material yield strength of the metal plate is detected by the mechanical sensor; the mechanical sensor contacts the metal plate to detect; and the detection result is displayed on the display plate through the transmission line.

[0009] As a further improved scheme of the present application: a display plate is fixedly arranged on one side of the supporting table, and a pressing rod is movably arranged on one side of the display plate; a circular plate is movably arranged on the inner wall of the display plate, and the circular plate is fixedly arranged on the outer surface of the hydraulic rod; the pressing rod can slide on one side of the display plate; the circular plate moves downward; the circular plate compresses the gas below the circular plate in the display plate; and the gas is compressed into the inner part of the shunt pipe through the conduit.

[0010] As a further improvement of the present application: the outer surface of the display panel is fixedly provided with a conduit, one end of the conduit is fixedly provided with a shunt pipe, both ends of the shunt pipe are fixedly provided with a first telescopic rod, and the gas is discharged into the interior of the two first telescopic rods through both ends of the shunt pipe.

[0011] As a further improvement of the present application: the inner wall of the two first telescopic rods is movably embedded with a second telescopic rod, and one end of the two second telescopic rods is fixedly arranged on one side of the mounting plate. The two second telescopic rods can slide at the inner wall of the two first telescopic rods, at this time, the two second telescopic rods move upward under the push of the gas, and further push the mechanical sensor upward through the mounting plate.

[0012] As a further improvement of the present application: the opposite side of the two transmission plates is fixedly provided with a pull plate, the opposite side of the two pull plates is fixedly provided with a cover plate, and the detection table is provided with a through slot on the side close to the two cover plates. The two transmission plates move away from each other, and further drive the two cover plates to move relative to each other through the two pull plates, so that the through slot is exposed, and the mechanical sensor can be extended.

[0013] As a further improvement of the present application: the side of the two cover plates is fixedly provided with two first sleeve rods, the inner wall of the plurality of first sleeve rods is movably embedded with a second sleeve rod, the outer surface of the plurality of second sleeve rods is movably sleeved with a second spring, the plurality of second sleeve rods can slide in the inner wall of the plurality of first sleeve rods, and the plurality of second springs have elastic force. During detection, the metal plate is above the two fixed plates, the two fixed plates are pushed by the elastic force of the plurality of second springs, so that the two cleaning brushes are tightly attached to one side of the metal plate.

[0014] As a further improvement of the present application: the plurality of second sleeve rods are two groups, one end of the two groups of second sleeve rods is fixedly provided with a fixed plate, and the side of the two fixed plates is fixedly provided with a cleaning brush. The two cleaning brushes are tightly attached to one side of the metal plate, and when moving to both sides, the two moving cleaning brushes clean the detection area of the metal plate.

[0015] Compared with the prior art, the present application has the advantages and positive effects that, 1. The application, when detecting the strength of the metal plate, two supporting plates are rotated with two first horizontal rods or two second horizontal rods as the shaft, and two transmission plates can slide on the inner wall of two sliding grooves, when the first connecting seat moves downward, it will press two supporting plates, and the lower end of the two supporting plates will further push two second connecting seats, and the two connecting plates will further drive two transmission plates to move in opposite directions, when the first connecting seat moves upward, it will pull two supporting plates, and the lower end of the two supporting plates will further pull two second connecting seats, and the two connecting plates will further drive two transmission plates to move in opposite directions, by controlling the output end of the hydraulic rod to move downward, and further driving the first connecting seat to move downward by the pressing rod, the distance between the two transmission plates can be adjusted, and the two sides of the metal plate to be detected are placed below the two pressing plates, the output end of the two electric push rods is controlled to move downward, so that the two pressing plates are pressed on the metal plate, and the output end of the hydraulic rod is controlled to move downward, so that the two connecting plates move away from each other, and the two pressing plates pull the two sides of the metal plate, so that the two sides of the metal plate are pulled during detection, and the stress distribution of the metal plate under actual working conditions can be simulated, and the yield strength and plasticity of the metal material can be more truly tested.

[0016] 2. The application, when using the detection device, the material yield strength of the metal plate is detected by the mechanical sensor, the mechanical sensor is inside the protection box, and the mechanical sensor is prevented from being damaged by being exposed, during detection, the pressing rod moves downward, further driving the circular plate to move downward, the circular plate compresses the gas below the circular plate inside the display plate, the gas is compressed into the inside of the shunt pipe through the conduit, further through the two ends of the shunt pipe, the gas is discharged into the inside of the two first telescopic rods, the two second telescopic rods can slide on the inner wall of the two first telescopic rods, at this time, the two second telescopic rods move upward under the push of the gas, further pushing the mechanical sensor upward through the mounting plate, and the mounting plate and the two square plates press the two first springs, the two first springs have elastic force, during detection, the two transmission plates move away from each other, further driving the two cover plates to move relative to each other through the two pull plates, so that the through slot is exposed, at this time, the upward moving mechanical sensor contacts the metal plate for detection, the detection result is displayed through the display plate through the transmission line, after detection, the two first telescopic rods are not pressed by the gas, the elastic force of the two first springs pushes the mounting plate, further making the two second telescopic rods return to the inside of the two first telescopic rods, and the mechanical sensor is recovered to the inside of the protection box, and the two cover plates move away from each other to block the through slot, so that the mechanical sensor is protected when not detecting, and the mechanical sensor is prevented from being damaged by being exposed, and the accuracy of the detection result is affected.

[0017] 3. In this invention, during testing, multiple second rods can slide on the inner walls of multiple first rods. Multiple second springs have elastic force. During testing, the metal plate is above two fixed plates. The elastic force of the multiple second springs pushes the two fixed plates, causing the two cleaning brushes to adhere tightly to one side of the metal plate. During testing, two transmission plates drive two cover plates to move in opposite directions. Furthermore, the two fixed plates drive the two cleaning brushes to move in opposite directions. The two cleaning brushes adhere tightly to one side of the metal plate. When moving to both sides, the two moving cleaning brushes clean one side of the metal plate. Thus, when using the testing device, the tested part is cleaned, improving the accuracy of the testing results. Attached Figure Description

[0018] Figure 1 This invention presents a frontal three-dimensional structural schematic diagram of a device for testing the plastic yield strength of metallic materials.

[0019] Figure 2 This invention provides a side-view three-dimensional structural diagram of a device for testing the plastic yield strength of metallic materials.

[0020] Figure 3 This invention provides a right-view three-dimensional structural diagram of a device for testing the plastic yield strength of metallic materials.

[0021] Figure 4 This invention presents a three-dimensional structural diagram of a device for testing the plastic yield strength of metallic materials with the cover plate removed.

[0022] Figure 5 This invention provides a partial three-dimensional schematic diagram of a device for testing the plastic yield strength of metallic materials.

[0023] Figure 6 This invention provides a cross-sectional three-dimensional structural diagram of a hollow cylinder in a device for testing the plastic yield strength of metallic materials.

[0024] Figure 7 This invention presents a cross-sectional three-dimensional structural diagram of the protective box in a device for testing the plastic yield strength of metallic materials.

[0025] Figure 8 This invention presents a cross-sectional three-dimensional structural diagram of the first telescopic rod in a device for testing the plastic yield strength of metallic materials.

[0026] Figure 9 This invention proposes a device for testing the plastic yield strength of metallic materials. Figure 2 Enlarged view of point A in the middle.

[0027] Illustration: 1, support table; 2, detection table; 201, sliding groove; 202, transmission plate; 203, connecting plate; 205, electric push rod; 206, pressing plate; 207, support; 208, hydraulic rod; 209, pressing rod; 210, first connecting seat; 211, first cross rod; 212, support plate; 213, second cross rod; 214, second connecting seat; 3, protection box; 301, square plate; 302, first spring; 303, mounting plate; 304, mechanical sensor; 305, display plate; 306, hollow cylinder; 307, round plate; 308, catheter; 309, shunt; 310, first telescopic rod; 311, second telescopic rod; 312, pull plate; 313, cover plate; 314, through groove; 4, first sleeve rod; 401, second sleeve rod; 402, fixed plate; 403, cleaning brush; 404, second spring. DETAILED DESCRIPTION

[0028] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood, the following will further describe the present application with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and therefore the present application is not limited to the specific embodiments disclosed in the following description.

[0030] Please refer to Figures 1 to 9 The embodiment provides a metal material plastic yield strength detection device, which comprises a support table 1, a detection table 2 arranged on one side of the support table 1 through a screw, and sliding grooves 201 formed in the inner walls of the detection table 2 on both sides, the detection table 2 can be disassembled from the support table 1 by rotating the screw, two transmission plates 202 are slidingly arranged at the inner walls of the two sliding grooves 201, connecting plates 203 are fixedly arranged on one side of each of the two transmission plates 202, the two transmission plates 202 can slide at the inner walls of the two sliding grooves 201, and the two connecting plates 203 drive the two transmission plates 202 to move when moving, a support 207 is fixedly arranged on one side of the support table 1, a hydraulic rod 208 is installed at the center of one side of the support 207, the support 207 supports the hydraulic rod 208, so that the hydraulic rod 208 is installed above the support table 1, a pressing rod 209 is fixedly arranged on the output end of the hydraulic rod 208, a first connecting seat 210 is fixedly arranged on one side of the pressing rod 209, the distance between the two transmission plates 202 can be adjusted by controlling the output end of the hydraulic rod 208 to move downward and further controlling the first connecting seat 210 to move downward through the pressing rod 209.

[0031] Please refer to Figures 1 to 9In an embodiment, the two connecting plates 203 are provided with electric push rods 205 at the center of one side, the output ends of the two electric push rods 205 are fixedly provided with pressing plates 206, the inner wall of the first connecting seat 210 is fixedly provided with two first horizontal rods 211, the outer surfaces of the two first horizontal rods 211 are movably sleeved with supporting plates 212, the two supporting plates 212 are movably embedded with second horizontal rods 213 on one side, the two ends of the two second horizontal rods 213 are fixedly provided with second connecting seats 214, the two second connecting seats 214 are fixedly arranged on the center of one side of the two connecting plates 203 respectively, the two supporting plates 212 are rotated with the two first horizontal rods 211 or the two second horizontal rods 213 as the shaft respectively, and the two transmission plates 202 can slide on the inner walls of the two sliding grooves 201. When the first connecting seat 210 moves downward, the two supporting plates 212 are pressed, the lower ends of the two supporting plates 212 further push the two second connecting seats 214 respectively, and the two connecting plates 203 further drive the two transmission plates 202 to move in opposite directions. When the first connecting seat 210 moves upward, the two supporting plates 212 are pulled, the lower ends of the two supporting plates 212 further pull the two second connecting seats 214 respectively, and the two connecting plates 203 further drive the two transmission plates 202 to move in opposite directions.

[0032] Please refer to Figures 1 to 9 In an embodiment, the detection table 2 is fixedly provided with a protection box 3 on one side, the inner walls of the two sides of the protection box 3 are fixedly provided with square plates 301, the one sides of the two square plates 301 are fixedly provided with first springs 302, and the one ends of the two first springs 302 are fixedly provided with mounting plates 303. The material yield strength of the metal plate is detected by a mechanical sensor 304. The mechanical sensor 304 is located in the interior of the protection box 3, so as to prevent the mechanical sensor 304 from being damaged by being exposed. The mounting plate 303 and the two square plates 301 press the two first springs 302, and the two first springs 302 have elastic force.

[0033] Please refer to Figures 1 to 9 In an embodiment, the inner wall of the mounting plate 303 is provided with a mechanical sensor 304, and the one side of the supporting table 1 is provided with a display plate 305. The mechanical sensor 304 is connected with the display plate 305 through a transmission line. The material yield strength of the metal plate is detected by the mechanical sensor 304. The mechanical sensor 304 contacts the metal plate to detect, and the detection result is displayed by the display plate 305 through the transmission line.

[0034] Please refer to Figures 1 to 9In one embodiment, one side of the support 207 is fixedly provided with a hollow cylinder 306, the pressing rod 209 is movably embedded in one side of the hollow cylinder 306, the inner wall of the hollow cylinder 306 is movably embedded with a circular plate 307, the circular plate 307 is fixedly sleeved on the outer surface of the hydraulic rod 208, the pressing rod 209 can slide on one side of the hollow cylinder 306, the circular plate 307 moves downward, the circular plate 307 compresses the gas below the circular plate 307 in the hollow cylinder 306, and the gas is compressed into the inside of the shunt pipe 309 through the conduit 308.

[0035] Please refer to Figures 1 to 9 In one embodiment, the outer surface of the hollow cylinder 306 is fixedly provided with the conduit 308, one end of the conduit 308 is fixedly provided with the shunt pipe 309, and the two ends of the shunt pipe 309 are fixedly provided with the first telescopic rod 310. The gas is discharged into the inside of the two first telescopic rods 310 through the two ends of the shunt pipe 309.

[0036] Please refer to Figures 1 to 9 In one embodiment, the inner wall of the two first telescopic rods 310 is movably embedded with the second telescopic rod 311, one end of the two second telescopic rods 311 is fixedly arranged on one side of the mounting plate 303, and the two second telescopic rods 311 can slide on the inner wall of the two first telescopic rods 310, at this time, the two second telescopic rods 311 move upward under the pushing of the gas, and further push the mechanical sensor 304 upward through the mounting plate 303.

[0037] Please refer to Figures 1 to 9 In one embodiment, the opposite side of the two transmission plates 202 is fixedly provided with the pull plate 312, the opposite side of the two pull plates 312 is fixedly provided with the cover plate 313, the detection table 2 is provided with the through slot 314 on the side close to the two cover plates 313, the two transmission plates 202 move away from each other, the two cover plates 313 are driven to move relative to each other through the two pull plates 312, the through slot 314 is exposed, and the mechanical sensor 304 can be stretched out.

[0038] Please refer to Figures 1 to 9 In one embodiment, the two cover plates 313 are fixedly provided with the two first sleeve rods 4 on one side, the inner wall of the plurality of first sleeve rods 4 is movably embedded with the second sleeve rod 401, the outer surface of the plurality of second sleeve rods 401 is movably sleeved with the second spring 404, the plurality of second sleeve rods 401 can slide in the inner wall of the plurality of first sleeve rods 4, and the plurality of second springs 404 have elasticity. During detection, the metal plate is above the two fixed plates 402, the two fixed plates 402 are pushed by the elasticity of the plurality of second springs 404, and the two cleaning brushes 403 are tightly attached to one side of the metal plate.

[0039] Please refer to Figures 1 to 9In one embodiment, multiple second rods 401 are grouped in pairs. One end of each pair of second rods 401 is fixedly provided with a fixing plate 402. A cleaning brush 403 is fixedly provided on one side of each fixing plate 402. The two cleaning brushes 403 are in close contact with one side of the metal plate. When they move to both sides, the two moving cleaning brushes 403 clean the detection area of ​​the metal plate.

[0040] Working principle: During the strength test of the metal plate, the two support plates 212 rotate around the two first crossbars 211 or the two second crossbars 213, respectively. Simultaneously, the two transmission plates 202 slide along the inner walls of the two grooves 201. When the first connecting seat 210 moves downward, it presses against the two support plates 212. Furthermore, the lower ends of the two support plates 212 push the two second connecting seats 214, causing the two connecting plates 203 to drive the two transmission plates 202 to move in opposite directions. When the first connecting seat 210 moves upward, it pulls the two support plates 212. Furthermore, the lower ends of the two support plates 212 pull the two second connecting seats 214, causing the two connecting plates 203 to drive the two transmission plates 202 in opposite directions. The movement is achieved by controlling the output end of the hydraulic rod 208 to move downwards, and further by driving the first connecting seat 210 downwards via the pressure rod 209. This allows adjustment of the distance between the two transmission plates 202, placing both sides of the metal plate to be tested below the two pressure plates 206. The output ends of the two electric push rods 205 are then controlled to move downwards, causing the two pressure plates 206 to press down on the metal plate. The output end of the hydraulic rod 208 is then controlled to move downwards, causing the two connecting plates 203 to move in opposite directions. The two pressure plates 206 pull on both sides of the metal plate, thus simulating the stress distribution of the metal plate under actual working conditions during testing. This allows for a more realistic test of the yield strength and plasticity of the metal material. When the detection device is used, the material yield strength of the metal plate is detected by the mechanical sensor 304, the mechanical sensor 304 is in the inside of the protection box 3, and the mechanical sensor 304 is prevented from being damaged by being exposed to the outside, when the detection is carried out, the pressure rod 209 moves downward, further drives the circular plate 307 to move downward, the circular plate 307 compresses the gas below the circular plate 307 in the inside of the hollow cylinder 306, the gas is compressed into the inside of the shunt pipe 309 through the conduit 308, and the gas is further discharged into the inside of the two first telescopic rods 310 through the two ends of the shunt pipe 309, the two second telescopic rods 311 can slide at the inner walls of the two first telescopic rods 310 respectively, at this time, the two second telescopic rods 311 move upward under the pushing of the gas, further push the mechanical sensor 304 upward through the mounting plate 303, and the mounting plate 303 and the two square plates 301 squeeze the two first springs 302, the two first springs 302 have elastic force, when the detection is carried out, the two transmission plates 202 move away from each other, further drive the two cover plates 313 to move relative to each other through the two pull plates 312, so that the through slot 314 is exposed, at this time, the upward moving mechanical sensor 304 contacts the metal plate for detection, the detection result is displayed through the display plate 305 through the transmission line, after the detection is completed, the two first telescopic rods 310 are not squeezed by the gas, the elastic force of the two first springs 302 pushes the mounting plate 303, further makes the two second telescopic rods 311 return to the inside of the two first telescopic rods 310, and the mechanical sensor 304 is recovered to the inside of the protection box 3, the two cover plates 313 move away from each other, and the through slot 314 is blocked, so that the mechanical sensor 304 is protected when not detecting, and the mechanical sensor 304 is prevented from being damaged by being exposed to the outside, and the accuracy of the detection result is affected; When the detection is carried out, the plurality of second sleeve rods 401 can slide at the inner walls of the plurality of first sleeve rods 4 respectively, the plurality of second springs 404 have elastic force, the metal plate is above the two fixed plates 402 when the detection is carried out, the two fixed plates 402 are pushed by the elastic force of the plurality of second springs 404, so that the two cleaning brushes 403 are tightly attached to one side of the metal plate, when the detection is carried out, the two transmission plates 202 drive the two cover plates 313 to move away from each other, further drive the two cleaning brushes 403 to move away from each other through the two fixed plates 402, the two cleaning brushes 403 are tightly attached to one side of the metal plate, when moving to both sides, the moving two cleaning brushes 403 clean one side of the metal plate, so that the part to be detected is cleaned when the detection device is used, and the accuracy of the detection result is improved.

[0041] The above merely describes the preferred embodiments of the present application, but is not intended to limit the present application in other forms. Any person skilled in the art can make changes or modifications to the above disclosed technical contents into equivalent embodiments with equivalent changes, and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solution of the present application, still falls within the protection scope of the present application.

Claims

1. A device for testing the plastic yield strength of metallic materials, characterized in that, The device comprises: A support table (1); A detection table (2) is arranged on one side of the support table (1) through a screw, and two sides of the inner wall of the detection table (2) are provided with sliding grooves (201); Two transmission plates (202) are slidingly arranged on the inner walls of the two sliding grooves (201), and one side of each of the two transmission plates (202) is fixedly provided with a connecting plate (203); A support (207) is fixedly arranged on one side of the support table (1), and a hydraulic rod (208) is installed at the center of one side of the support (207); A pressing rod (209) is fixedly arranged on the output end of the hydraulic rod (208), and a first connecting seat (210) is fixedly arranged on one side of the pressing rod (209).

2. The device for detecting plastic yield strength of a metal material according to claim 1, characterized by: A motorized push rod (205) is installed at the center of one side of each of the two connecting plates (203), a pressing plate (206) is fixedly arranged on the output end of each of the two motorized push rods (205), a first cross rod (211) is fixedly arranged on the inner wall of the first connecting seat (210), a support plate (212) is movably arranged on the outer surface of each of the two first cross rods (211), a second cross rod (213) is movably arranged on one side of each of the two support plates (212), a second connecting seat (214) is fixedly arranged on both ends of each of the two second cross rods (213), and one side of each of the two second connecting seats (214) is fixedly arranged at the center of one side of each of the two connecting plates (203).

3. The device for detecting plastic yield strength of a metal material according to claim 1, characterized in that: One side of the detection table (2) is fixedly provided with a protection box (3), the inner walls of both sides of the protection box (3) are fixedly provided with square plates (301), one side of each of the two square plates (301) is fixedly provided with a first spring (302), and one end of each of the two first springs (302) is fixedly provided with a mounting plate (303).

4. The device for detecting plastic yield strength of a metal material according to claim 3, characterized in that: A mechanics sensor (304) is installed on the inner wall of the mounting plate (303), one side of the support table (1) is provided with a display panel (305), and the mechanics sensor (304) is connected with the display panel (305) through a transmission line.

5. The apparatus for detecting plastic yield strength of a metal material according to claim 4, characterized in that: One side of the support (207) is fixedly provided with a hollow cylinder (306), the pressing rod (209) is movably arranged on one side of the hollow cylinder (306), a circular plate (307) is movably arranged on the inner wall of the hollow cylinder (306), and the circular plate (307) is fixedly arranged on the outer surface of the hydraulic rod (208).

6. The apparatus for detecting plastic yield strength of a metal material according to claim 5, wherein: A catheter (308) is fixedly arranged on the outer surface of the hollow cylinder (306), one end of the catheter (308) is fixedly provided with a shunt (309), and first telescopic rods (310) are fixedly arranged on both ends of the shunt (309).

7. The apparatus for detecting plastic yield strength of a metal material according to claim 6, characterized by: Second telescopic rods (311) are movably arranged on the inner walls of the two first telescopic rods (310), and one end of each of the two second telescopic rods (311) is fixedly arranged on one side of the mounting plate (303).

8. The apparatus for detecting plastic yield strength of a metal material according to claim 1, characterized by: Two opposite sides of each of the transmission plates (202) are fixedly provided with pull plates (312), and two opposite sides of each of the pull plates (312) are fixedly provided with cover plates (313). The detection table (2) is provided with a through slot (314) on one side close to the two cover plates (313).

9. The apparatus for detecting plastic yield strength of a metal material according to claim 8, characterized by: One side of each of the two cover plates (313) is fixedly provided with two first sleeve rods (4), and the inner walls of the plurality of first sleeve rods (4) are movably embedded with second sleeve rods (401). The outer surfaces of the plurality of second sleeve rods (401) are movably sleeved with second springs (404).

10. The apparatus for detecting plastic yield strength of a metal material according to claim 9, wherein: The plurality of second sleeve rods (401) are in pairs in a group, one end of the two groups of second sleeve rods (401) is fixedly provided with a fixed plate (402), and one side of the two fixed plates (402) is fixedly provided with a cleaning brush (403).

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