Self-positioning metal material stress detection mechanism and detection method thereof

Abstract

The invention discloses a self-positioning metal material stress detection mechanism and a detection method thereof. The self-positioning metal material stress detection mechanism comprises a base, and a workbench is arranged on the base; a pressing rod is connected to the workbench in a penetrating mode, an adsorption plate is arranged on the workbench, the pressing rod is connected to the interior of the adsorption plate in a penetrating mode, the side end of the pressing rod is connected with a first contact piece through a moving rod, the first contact piece makes contact with a second contact piece after moving, and the second contact piece is located in the workbench. An electromagnetic part is arranged in the workbench and electrically connected with the adsorption plate. According to the self-positioning metal material stress detection mechanism and the detection method thereof, the electromagnetic part is driven to start through the auxiliary assembly, so that the adsorption plate conveniently adsorbs a metal material at the upper end, the problem of relatively long time caused by clamping the metal material is reduced, and the self-positioning metal material stress detection mechanism is integrally convenient to adapt to metal materials with different shapes and sizes; and the problems of scratching and deformation of the metal material are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field related to metal material stress detection, and in particular to a self-positioning metal material stress detection mechanism and a detection method thereof. Background Art

[0002] During the metal material testing process, stress testing is required, but the existing metal material stress testing mechanism still has certain defects when used; During use, in order to improve the stability of the overall detection and reduce the problem of reduced rigor of the detection data caused by the deviation of the metal material during the detection process, it is necessary to clamp it. The existing clamping structure needs to replace the corresponding size of the bearing plate. The overall operation is cumbersome, resulting in reduced detection efficiency. In order to overcome the above-mentioned defects, the prior art 1 (Chinese patent with application number 202120678197.X and application date 2021-04-02) is a test delivery device for residual stress detection, comprising a bottom plate, on which a transport mechanism for transporting workpieces is arranged, and a concentric clamping mechanism is arranged on the transport mechanism, and the concentric clamping mechanism comprises two clamping parts distributed in a cross shape, and the clamping part comprises two clamping plates symmetrically distributed about the center of the cross, and the transport mechanism is also provided with a driving member for driving the two clamping parts to move simultaneously. When the test delivery device transports the metal part to be tested to the stress detection device, it is necessary to manually readjust the position so as to facilitate the positioning and fixing of the bearing mechanism, which produces the effect that the position can be automatically adjusted during the test delivery process so as to facilitate the clamping operation of the bearing mechanism; There is also prior art 2 (Chinese patent application number 202210841671.5, application date 2022-07-18) a clamping device for metal material detection, comprising a main body, one side of the main body is movably connected with a clamping assembly, the other side of the main body is movably connected with an adjusting assembly, the adjusting assembly and the clamping assembly are connected by an elastic member, the clamping assembly comprises a clamping plate, a moving rod and a driven disk, the driven disk is located in the main body, one end of each moving rod passes through the side of the main body and is fixedly connected to the clamping plate, the other end of each moving rod is fixedly connected to the driven disk, the driven disk is fixedly connected to the elastic member, the clamping assembly is pulled to pull the elastic member, and then cooperate with the main body to initially clamp the metal material, drive the adjusting assembly to pull the elastic member to adjust the tension of the elastic member, and then adjust the clamping force on the material to avoid the material being accidentally crushed or the problem of loose clamping during the clamping process, and has the advantages of good clamping effect and no damage to the metal material; And prior art three (Chinese patent with application number 202120678150.3 and application date 2021-04-02) A bearing device for residual stress detection of metal parts, including a column assembly, on which a load-bearing beam assembly for bearing a workpiece is provided, and a motion device for driving the load-bearing beam assembly to move, the motion device including a lifting mechanism provided on the column assembly for driving the load-bearing beam assembly to lift and lower, and a flipping mechanism provided on the lifting mechanism for driving the load-bearing beam assembly to flip, the load-bearing beam assembly including a main beam, on which a rotating disk is rotatably connected, the bearing device for stress detection cannot be adjusted accordingly when fixing cylindrical metal parts of different thicknesses and radii, and the bearing plate of the corresponding size needs to be replaced, which is a cumbersome problem, which produces the effect of facilitating the effective fixing of cylindrical metals of different thicknesses and radii without replacing the bearing plate.

[0003] Although the existing technology can improve the overall operating efficiency, during the working process, the clamping plate in the clamping assembly clamps the metal material, and the metal material needs to be placed in the middle of the clamping plate and then clamped and limited. Therefore, not only is it easy to scratch the surface of the metal material, but the clamping assembly is also inconvenient to adapt to metal materials of different shapes, which reduces the overall clamping range. The uneven distribution of the clamping force of the clamping plate will cause deformation of the metal material, thereby affecting the measurement results and the rigor of the overall detection data.

[0004] In view of the above problems, it is urgently necessary to carry out innovative design based on the original self-positioning metal material stress detection mechanism and its detection method. Therefore, we proposed a self-positioning metal material stress detection mechanism and its detection method which can well solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a self-positioning metal material stress detection mechanism and a detection method thereof, so as to solve the problem proposed in the above-mentioned background technology that the clamping plate in the clamping assembly on the current market clamps the metal material, and the metal material needs to be placed in the middle of the clamping plate as a whole, and then clamped and limited. Therefore, not only is the surface of the metal material easily scratched, but the clamping assembly is also inconvenient to adapt to metal materials of different shapes, which reduces the overall clamping range. The uneven distribution of the clamping force of the clamping plate will cause deformation of the metal material, thereby affecting the measurement results, thereby affecting the rigor of the overall detection data.

[0006] To achieve the above object, the present invention provides the following technical solution: a self-positioning metal material stress detection mechanism, comprising a base, a top seat connected to the base through an adjustment frame, a detection member arranged under the top seat, and a workbench arranged on the base; A pressure rod is connected through the workbench, and an adsorption plate is arranged on the workbench. The pressure rod is connected through the inside of the adsorption plate, and the pressure rod is connected to the workbench through an auxiliary component. The auxiliary component includes a telescopic rod installed under the pressure rod, and the telescopic rod is located inside the workbench. A first spring is arranged on the outside of the telescopic rod. The side end of the pressure rod is connected to a first contact piece through a moving rod, and the first contact piece contacts with the second contact piece after moving, and the second contact piece is located inside the workbench. An electromagnetic component is arranged inside the workbench, and the electromagnetic component is electrically connected to the adsorption plate. The electromagnetic component is started by driving the auxiliary component, so that the electromagnetic component energizes the adsorption plate.

[0007] Preferably, a cavity is opened inside the top seat, a driving assembly is arranged inside the cavity, and the driving assembly includes a first telescopic cylinder installed inside the cavity, and an output end of the first telescopic cylinder is connected to a first moving seat.

[0008] Preferably, a first motor is installed inside the first movable seat, the output end of the first motor is connected to a forward and reverse screw, the outer side of the forward and reverse screw is threadedly connected to the second movable seat, the interior of the second movable seat is connected with a first guide rod, and the first guide rod is arranged inside the first movable seat.

[0009] Preferably, the bottom of the second movable seat is connected to a detection member via a rotating assembly, and the rotating assembly includes a second motor installed at the bottom of the second movable seat, the output end of the second motor is connected to a worm, and the side end of the worm is meshingly connected to a worm wheel.

[0010] Preferably, the worm gear is connected to a bracket, a connecting frame is provided on the bracket, a detection member is connected to the bottom of the connecting frame, the bracket is connected to the output end of the third motor, and the third motor is installed at the bottom of the second movable seat.

[0011] Preferably, a storage slot is provided on the workbench, a moving component is installed inside the storage slot, the moving component includes a second telescopic cylinder installed inside the storage slot, a moving plate is connected to the end of the second telescopic cylinder, a second guide rod is connected through the inside of the moving plate, an adsorption block is installed on the top of the moving plate, the adsorption block is located at the top of the storage slot, and the adsorption block is electrically connected to the electromagnetic component.

[0012] Preferably, an extrusion column is provided under the top seat, and the extrusion column contacts the pressure plate after movement. An air delivery component is provided under the pressure plate, and the air delivery component includes a piston installed at the bottom of the pressure plate, and the piston is provided inside the conveying cylinder.

[0013] Preferably, a second spring is sleeved on the outer side of the piston, the input end of the conveying cylinder is connected to an air suction hood through a pipeline, the air suction hood is located at the side end of the adsorption block, the pipeline is connected to a filter box, and the filter box is arranged at the side end of the workbench.

[0014] Preferably, the method comprises the following steps: S1: Preliminary preparation: Check the equipment status and set up the working environment, and place the metal material to be tested on the workbench; S2: Sample fixation: The metal material is adsorbed by the cooperation of auxiliary components and mobile components to ensure that it will not move during the inspection process; S3: Adjust the position of the test piece: The position of the detection member is adjusted by using the cooperation of the driving assembly and the rotating assembly so as to contact with the metal material to be detected; S4: Data collection: The top seat is moved by adjusting the frame, so that the detection part can perform stress detection on the metal material, and the stress and strain data are collected in real time through the detection part to ensure the integrity of the data; S5: Data Analysis: Use software to analyze the collected data, obtain the stress distribution and stress characteristics of metal materials, and generate a test report; S6: Repeat detection: Use the driving assembly and the rotating assembly to adjust the position of the test piece, and repeat the test to verify the accuracy of the result; S7: End of detection: After completing the inspection, turn off all equipment, clean the workbench and inspection mechanism to ensure the accuracy and reliability of the next inspection.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the self-positioning metal material stress detection mechanism and the detection method thereof, through the auxiliary component driving the electromagnetic component to start, make the adsorption plate convenient to adsorb the metal material at the upper end, reduce the problem of long time caused by clamping the metal material, and conveniently adapt to metal materials of different shapes and sizes as a whole, reduce the problem of scratches and deformation of metal materials, the specific contents are as follows: The adsorption plate is convenient for adsorbing the metal material on the upper end, and the overall limit is fast, which reduces the problem of long time required for clamping metal materials, improves the overall detection efficiency, reduces the scratches and deformation of metal materials, and improves the rigor of the overall detection data; The first telescopic cylinder of the driving assembly moves the first moving seat to facilitate the movement of the detection part at the bottom, thereby reducing the need to move the metal material to the bottom of the detection part, thereby reducing the problem of reduced detection efficiency and greatly improving the overall automation level; The second motor of the rotating assembly can conveniently drive the worm to rotate, and the detection part can be conveniently rotated at different angles, so as to detect the stress of the metal material at different angles, thereby reducing the problem of reducing the overall compression efficiency due to the need to adjust the angle of the metal material, and improving the overall service life; The second telescopic cylinder of the moving assembly drives the moving plate to move, which facilitates the movement of the adsorption block to the bottom of the metal material to be tested, reducing the problem of cumbersome limit operation caused by centering. The adsorption block facilitates the adsorption of the metal material at the upper end, making the placement of the metal material more stable. The extrusion column under the top seat contacts the pressure plate, allowing the piston of the gas delivery assembly to move inside the delivery cylinder, making it convenient for the pipeline to adsorb the outer gas through the suction hood, thereby adsorbing the dust on the surface of the adsorption block, reducing the inconvenience caused by dust affecting the overall adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the partial front view structure of the present invention; Figure 3 It is a schematic diagram of a partial side view structure of the present invention; Figure 4 It is a schematic diagram of the structure of the workbench of the present invention; Figure 5 It is a schematic diagram of the internal structure of the workbench of the present invention; Figure 6 This is a schematic diagram of the connection structure between the compression rod and the telescopic rod of the present invention; Figure 7 This is a schematic diagram of the internal structure of the top seat of the present invention; Figure 8 It is a schematic diagram of the structure of the detection element of the present invention; Fig. 9 For the present invention Figure 8 The enlarged structural diagram at A in the middle; Fig.10 It is a schematic diagram of the internal structure of the conveying cylinder of the present invention.

[0017] In the figure: 1, base; 2, adjustment frame; 3, top seat; 4, workbench; 5, pressure rod; 6, adsorption plate; 7, telescopic rod; 8, first spring; 9, moving rod; 10, first contact piece; 11, second contact piece; 12, electromagnetic member; 13, cavity; 14, first telescopic cylinder; 15, first moving seat; 16, first motor; 17, forward and reverse screw rods; 18, first guide rod; 19, second moving seat; 20, second motor; 21, worm; 22, worm gear; 23, bracket; 24, connecting frame; 25, detection member; 26, third motor; 27, storage slot; 28, second telescopic cylinder; 29, moving plate; 30, second guide rod; 31, adsorption block; 32, extrusion column; 33, pressure plate; 34, piston; 35, conveying cylinder; 36, second spring; 37, pipeline; 38, filter box; 39, suction hood. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0019] In this embodiment, in order to improve the efficiency of the overall limit, the auxiliary components are used to reduce the inconvenience caused by the need to clamp the metal material, such as Figure 1-Figure 6The technical solution shown in the figure includes a base 1, a top seat 3 is connected to the base 1 through an adjustment frame 2, a detection member 25 is arranged under the top seat 3, a workbench 4 is arranged on the base 1, a pressure rod 5 is connected through the workbench 4, an adsorption plate 6 is arranged on the workbench 4, the pressure rod 5 is connected through the inside of the adsorption plate 6, and the pressure rod 5 is connected to the workbench 4 through an auxiliary component. The auxiliary component includes a telescopic rod 7 installed under the pressure rod 5, the telescopic rod 7 is located inside the workbench 4, a first spring 8 is arranged on the outside of the telescopic rod 7, and a first contact piece 10 is connected to the side end of the pressure rod 5 through a moving rod 9. After the first contact piece 10 moves, it contacts with a second contact piece 11, and the second contact piece 11 is located inside the workbench 4. An electromagnetic component 12 is arranged inside the workbench 4, and the electromagnetic component 12 is electrically connected to the adsorption plate 6. The electromagnetic component 12 is driven to start by the auxiliary component, so that the electromagnetic component 12 energizes the adsorption plate 6 to detect the metal material. The material is placed on the workbench 4. At this time, the metal material is pressed down by the pressure rod 5, so that the first spring 8 on the outer side of the telescopic rod 7 is squeezed, thereby causing the moving rod 9 at the side end of the pressure rod 5 to move, so that the first contact piece 10 under the moving rod 9 is in contact with the second contact piece 11, so that the electromagnetic part 12 energizes the adsorption plate 6, so that the adsorption plate 6 can easily adsorb the metal material on the upper end. The overall limiting speed is fast, which reduces the problem of long time required for clamping metal materials and improves the overall detection efficiency. At this time, the detection part 25 under the top seat 3 is conveniently moved to the position where the metal material needs to be detected, and the operation is carried out through the cooperation of the adjustment frame 2 on the base 1, so that the detection part 25 can quickly detect the stress of the metal material, which not only reduces the inconvenience of clamping the metal material, but also is convenient to adapt to metal materials of different shapes and sizes as a whole, and reduces the scratches and deformation of the metal material, thereby improving the rigor of the overall detection data. Example 2

[0020] In this embodiment, in order to improve the overall service life, the rotating assembly is used to reduce the need to adjust the angle of the metal material, which leads to a decrease in the overall compression efficiency. Figure 1 and Figure 7-Figure 9As shown, a cavity 13 is provided inside the top seat 3, and a driving assembly is arranged inside the cavity 13. The driving assembly includes a first telescopic cylinder 14 installed inside the cavity 13, and the output end of the first telescopic cylinder 14 is connected to a first moving seat 15, and a first motor 16 is installed inside the first moving seat 15, and the output end of the first motor 16 is connected to a forward and reverse screw 17, and the outer side of the forward and reverse screw 17 is threadedly connected to a second moving seat 19, and the second moving seat 19 is connected to a first guide rod 18 through the inside, and the first guide rod 18 is arranged inside the first moving seat 15 The bottom of the second movable seat 19 is connected to a detection member 25 through a rotating assembly, and the rotating assembly includes a second motor 20 installed at the bottom of the second movable seat 19, and the output end of the second motor 20 is connected to a worm 21, and the side end of the worm 21 is meshed and connected to a worm wheel 22, and a bracket 23 is connected to the worm wheel 22, and a connecting frame 24 is provided on the bracket 23, and a detection member 25 is connected to the bottom of the connecting frame 24, and the bracket 23 is connected to the output end of the third motor 26, and the third motor 26 is installed at the bottom of the second movable seat 19, using the first telescopic cylinder inside the cavity 13 14 moves the first movable seat 15 to facilitate the movement of the detection member 25 at the bottom, reducing the need to move the metal material to the bottom of the detection member 25, resulting in reduced detection efficiency. The first motor 16 is turned on to allow the forward and reverse screws 17 to cooperate with the first guide rod 18 to move the second movable seat 19 arranged on the outside laterally, so that the position of the detection member 25 can be conveniently moved, thereby being able to be adjusted to the desired position, greatly improving the overall degree of automation. The second motor 20 is conveniently arranged to drive the worm 21 to rotate, so that the bracket 23 on the worm gear 22 drives the connecting frame 24 to rotate, which is convenient for the bottom detection member 25 to rotate at an angle, thereby greatly improving the overall detection efficiency. The third motor 26 is arranged to drive the bracket 23 to rotate. At this time, the worm gear 22 rotates on the worm 21, which is convenient for the detection member 25 to rotate at an angle, thereby detecting the stress of the metal material at different angles, improving the overall practicality, reducing the need to adjust the angle of the metal material, resulting in reduced overall compressive efficiency, and improving the overall service life. Example 3

[0021] In this embodiment, in order to improve the rigor of the overall detection data, the mobile components are used to reduce the problem of detection deviation caused by the poor stability of metal materials. Figure 1-Figure 3 and Fig.10As shown, a storage groove 27 is provided on the workbench 4, and a moving component is installed inside the storage groove 27. The moving component includes a second telescopic cylinder 28 installed inside the storage groove 27, and a moving plate 29 is connected to the end of the second telescopic cylinder 28. A second guide rod 30 is connected to the inside of the moving plate 29, and an adsorption block 31 is installed on the top of the moving plate 29. The adsorption block 31 is located at the top of the storage groove 27. The adsorption block 31 is electrically connected to the electromagnetic member 12. An extrusion column 32 is provided under the top seat 3. After the extrusion column 32 moves, it contacts with a pressing plate 33. A gas delivery component is provided under the pressing plate 33, and the gas delivery component includes a gas delivery component installed at the bottom of the pressing plate 33. The piston 34 is arranged inside the conveying cylinder 35, and a second spring 36 is sleeved outside the piston 34. The input end of the conveying cylinder 35 is connected to a suction hood 39 through a pipe 37. The suction hood 39 is located at the side end of the adsorption block 31. The pipe 37 is connected to a filter box 38, and the filter box 38 is arranged at the side end of the workbench 4. The second telescopic cylinder 28 inside the storage slot 27 is used to drive the moving plate 29 to move, so that the moving plate 29 can be stably moved through the second guide rod 30, which is convenient for the adsorption block 31 on the moving plate 29 to move horizontally, so as to facilitate the adsorption block 31 to be moved to the bottom of the metal material to be detected. The lateral movement is convenient for adjustment according to the size of the metal material to be detected. The whole does not need to be placed in the center, which reduces the problem of cumbersome limit operation caused by the center placement, thereby greatly improving the overall detection efficiency. The adsorption block 31 is energized by the electromagnetic part 12, so that the adsorption block 31 can easily adsorb the metal material on the upper end, which not only makes the placement of the metal material more stable, but also reduces the problem of detection deviation caused by poor stability, improves the rigor of the overall detection data, and adsorbs both sides of the metal material, reduces the problem of damage caused by overall adsorption during stress detection, and improves the overall service life. When the adjustment frame 2 on the base 1 is operated in cooperation, the extrusion column 32 under the top seat 3 contacts the pressure plate 33, so that the piston 34 moves inside the conveying cylinder 35, which is convenient for discharging the gas inside the conveying cylinder 35. When the extrusion column 32 pulls away the surface of the pressure plate 33, the second spring 36 on the outside of the piston 34 rebounds, so that the pipe 37 absorbs the outside gas through the suction hood 39, so that the dust on the surface of the adsorption block 31 is absorbed, reducing the inconvenience caused by the dust affecting the overall adsorption effect, and the pipe 37 is connected to the filter box 38, which is convenient for using the filter box 38 to filter the dust, thereby improving the overall service life.

[0022] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-positioning metal material stress detection mechanism, comprising a base (1), a top seat (3) connected to the base (1) via an adjustment frame (2), a detection member (25) being arranged below the top seat (3), and a workbench (4) being arranged on the base (1); It is characterized in that Also includes: A pressure rod (5) is connected through the workbench (4), and an adsorption plate (6) is arranged on the workbench (4). The pressure rod (5) is connected through the inside of the adsorption plate (6). The pressure rod (5) is connected to the workbench (4) through an auxiliary component. The auxiliary component comprises a telescopic rod (7) installed under the pressure rod (5). The telescopic rod (7) is located inside the workbench (4). A first spring (8) is arranged on the outside of the telescopic rod (7). The side end of the pressure rod (5) is connected to a first contact piece (10) through a moving rod (9). After the first contact piece (10) moves, it contacts with a second contact piece (11). The second contact piece (11) is located inside the workbench (4). An electromagnetic component (12) is arranged inside the workbench (4). The electromagnetic component (12) is electrically connected to the adsorption plate (6). The electromagnetic component (12) is driven to start by the auxiliary component, so that the electromagnetic component (12) energizes the adsorption plate (6).

2. A self-positioning metal material stress detection mechanism according to claim 1, Features: A cavity (13) is provided inside the top seat (3), a driving assembly is arranged inside the cavity (13), and the driving assembly comprises a first telescopic cylinder (14) installed inside the cavity (13), and an output end of the first telescopic cylinder (14) is connected to a first movable seat (15).

3. A self-positioning metal material stress detection mechanism according to claim 2, Features: A first motor (16) is installed inside the first movable seat (15); an output end of the first motor (16) is connected to a forward and reverse screw rod (17); an outer side of the forward and reverse screw rod (17) is threadedly connected to a second movable seat (19); a first guide rod (18) is connected through the interior of the second movable seat (19); and the first guide rod (18) is arranged inside the first movable seat (15).

4. A self-positioning metal material stress detection mechanism according to claim 3, Features: The bottom of the second movable seat (19) is connected to a detection member (25) via a rotating assembly, the rotating assembly comprising a second motor (20) mounted on the bottom of the second movable seat (19), the output end of the second motor (20) being connected to a worm (21), the side end of the worm (21) being meshingly connected to a worm wheel (22).

5. A self-positioning metal material stress detection mechanism according to claim 4, Features: The worm gear (22) is connected to a bracket (23), a connecting frame (24) is provided on the bracket (23), a detection member (25) is connected to the bottom of the connecting frame (24), the bracket (23) is connected to the output end of a third motor (26), and the third motor (26) is mounted on the bottom of the second movable seat (19).

6. A self-positioning metal material stress detection mechanism according to claim 1, Features: The workbench (4) is provided with a storage groove (27), a moving assembly is installed inside the storage groove (27), and the moving assembly comprises a second telescopic cylinder (28) installed inside the storage groove (27), a moving plate (29) is connected to the end of the second telescopic cylinder (28), a second guide rod (30) is connected through the inside of the moving plate (29), and an adsorption block (31) is installed on the top of the moving plate (29), the adsorption block (31) is located at the top of the storage groove (27), and the adsorption block (31) is electrically connected to the electromagnetic component (12).

7. A self-positioning metal material stress detection mechanism according to claim 1, Features: A squeezing column (32) is arranged under the top seat (3), and the squeezing column (32) contacts the pressing plate (33) after movement. A gas delivery assembly is arranged under the pressing plate (33), and the gas delivery assembly comprises a piston (34) mounted on the bottom of the pressing plate (33). The piston (34) is arranged inside the conveying cylinder (35).

8. A self-positioning metal material stress detection mechanism according to claim 7, Features: A second spring (36) is sleeved on the outside of the piston (34); the input end of the conveying cylinder (35) is connected to an air suction hood (39) via a pipe (37); the air suction hood (39) is located at a side end of the adsorption block (31); the pipe (37) is connected to a filter box (38); the filter box (38) is arranged at a side end of the workbench (4).

9. A detection method for implementing the self-positioning metal material stress detection mechanism according to claim 1, Features: The steps include: S1: Preliminary preparation: Check the equipment status and set up the working environment, and place the metal material to be tested on the workbench; S2: Sample fixation: The metal material is adsorbed by the cooperation of auxiliary components and mobile components to ensure that it will not move during the inspection process; S3: Adjust the position of the test piece: The position of the detection member is adjusted by using the cooperation of the driving assembly and the rotating assembly so as to contact with the metal material to be detected; S4: Data collection: The top seat (3) is moved by means of the adjustment frame (2), so that the detection member (25) performs stress detection on the metal material, and the stress and strain data are collected in real time by means of the detection member (25), thereby ensuring the integrity of the data; S5: Data Analysis: Use software to analyze the collected data, obtain the stress distribution and stress characteristics of metal materials, and generate a test report; S6: Repeat detection: Use the driving assembly and the rotating assembly to adjust the position of the test piece, and repeat the test to verify the accuracy of the result; S7: End of detection: After completing the inspection, turn off all equipment, clean the workbench and inspection mechanism to ensure the accuracy and reliability of the next inspection.

Images