Grain size detection device for metal material

Abstract

The utility model relates to the technical field of grain size testing, and discloses a grain size detection device for metal materials, which comprises a bottom plate, a support frame is fixedly connected to the rear side of the top of the bottom plate, a microscope is fixedly connected to the top of the support frame, and a mounting plate is fixedly connected to the bottom of the front side of the support frame. A fixing plate is fixedly connected to the front side of the mounting plate, connecting rods are arranged on the left side and the right side of the fixing plate correspondingly, an objective table is fixedly connected between the two connecting rods, stabilizing assemblies are arranged on the outer walls of the left side and the right side of the bottom plate correspondingly, and fixing assemblies are arranged in the connecting rods. According to the utility model, the stabilizing assemblies are arranged on the two sides of the bottom plate, and the suction cups are adsorbed on a table top, so that the connection firmness between the device and the table top is effectively enhanced. When the pull rod is lifted to move the piston upwards, the air pressure in the barrel is reduced, the suction cup is tightly adsorbed under the action of air pressure difference, and the locking assembly can lock the piston at the corresponding position to maintain the air pressure.

Description

Technical Field

[0001] This utility model relates to the field of grain size testing technology, and in particular to a grain size detection device for metallic materials. Background Technology

[0002] In the production of metallic materials, heat treatment is a crucial method for controlling grain size. By detecting the grain size before and after heat treatment, we can understand the impact of heat treatment process parameters (such as heating temperature, holding time, and cooling rate) on grain growth, thereby optimizing the heat treatment process, obtaining the ideal grain size, and improving material properties. For example, in processes such as quenching and tempering, precise control of grain size can enable metallic materials to achieve excellent comprehensive mechanical properties.

[0003] Currently, traditional testing equipment often relies on simple placement methods and lacks effective stabilization measures. In actual testing environments, the operation of other equipment in the laboratory, frequent personnel movement, or accidental contact with the testing device during the testing process can easily cause displacement or shaking of the device. This has a significant impact on grain size detection work that requires high-precision observation using a microscope. Even slight displacement or shaking can cause deviations in the microscope's field of view, making it difficult for the testing personnel to accurately focus and clearly observe the grain boundaries and grains of the metallic material, thus seriously affecting the accuracy of the test results. Therefore, a grain size detection device for metallic materials is proposed. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a grain size detection device for metallic materials, aiming to improve the problem that the existing technology lacks effective stabilization methods, and that accidental contact with the detection device during the detection process can easily cause the device to shift or shake.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a grain size detection device for metallic materials, comprising a base plate, a support frame fixedly connected to the top rear side of the base plate, a microscope fixedly connected to the top of the support frame, a mounting plate fixedly connected to the bottom front side of the support frame, a fixing plate fixedly connected to the front side of the mounting plate, connecting rods provided on both the left and right sides of the fixing plate, a stage fixedly connected between the two connecting rods, stabilizing components provided on both the left and right outer walls of the base plate, and fixing components provided inside the connecting rods;

[0006] The stabilizing component includes two connecting plates, which are fixedly connected to the outer wall of the base plate. A cylinder is fixedly connected to the middle of the connecting plates, and a suction cup is fixedly connected to the bottom of the cylinder. A piston is slidably connected inside the cylinder, and a pull rod is fixedly connected to the top of the piston. A first spring is sleeved on the outer wall of the pull rod, and a locking component is provided inside the cylinder.

[0007] As a further description of the above technical solution:

[0008] The locking assembly includes a first limiting block, the outer wall of which is slidably connected to the inner wall of the cylinder, a fixing rod is fixedly connected to the middle of the first limiting block, and a second spring is sleeved on the outer wall of the fixing rod.

[0009] As a further description of the above technical solution:

[0010] The fixing component includes a rotating shaft rotatably connected inside the connecting rod. A rope is wound around the outer wall of the rotating shaft. A second limiting block is fixedly connected to the end of the rope away from the rotating shaft. A locking rod is fixedly connected to the side of the second limiting block away from the rope. A third spring is fixedly connected to the side of the second limiting block away from the locking rod.

[0011] As a further description of the above technical solution:

[0012] A light source is fixedly connected to the top of the base plate, and a ventilation hole is opened at the bottom of the cylinder.

[0013] As a further description of the above technical solution:

[0014] The piston has a fixing hole on its outer wall, and the fixing rod passes through the cylinder and engages with the fixing hole.

[0015] As a further description of the above technical solution:

[0016] The pull rod is square, one end of the first spring is fixedly connected to the inner wall of the cylinder, and the other end of the first spring is fixedly connected to the top of the piston.

[0017] As a further description of the above technical solution:

[0018] The fixing plate has multiple positioning holes on both the left and right sides, and the locking rod passes through the connecting rod and engages with the positioning holes.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the second limiting block is slidably connected to the inside of the connecting rod, and the end of the third spring away from the second limiting block is fixedly connected to the inner wall of the connecting rod.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting stabilizing components on both sides of the base plate and using suction cups to adhere to the placement platform, the connection between the device and the platform is effectively enhanced. When the pull rod is pulled up to move the piston upward, the air pressure inside the cylinder decreases, and the suction cups adhere tightly under the action of the air pressure difference. The locking component can lock the piston in the corresponding position to maintain air pressure, ensuring that the device will not be displaced or shaken due to external vibrations, collisions, or other factors during the detection process. This provides a stable basis for the accurate observation of the grain size of metallic materials under a microscope and improves the accuracy of the detection results.

[0023] 2. In this utility model, by setting a fixing component, the position of the stage can be flexibly adjusted according to the size of different metal material samples and testing requirements. By rotating the shaft, the rope is wound up, which in turn moves the second limiting block and the locking rod. The locking rod can be inserted into any one of the multiple positioning holes on both sides of the fixing plate, so as to fix the stage at different heights or positions. Attached Figure Description

[0024] Figure 1 This is a perspective view of the grain size detection device for metallic materials proposed in this utility model;

[0025] Figure 2 This is a cross-sectional view of the cylindrical body of the grain size detection device for metallic materials proposed in this utility model;

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 for Figure 1 Enlarged view at point B in the middle;

[0028] Figure 5 This is a cross-sectional view of the connecting rod of the grain size detection device for metallic materials proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Light source; 3. Support frame; 4. Microscope; 5. Mounting plate; 6. Fixing plate; 7. Positioning hole; 8. Connecting rod; 9. Stage; 10. Connecting plate; 11. Cylinder; 12. Suction cup; 13. Piston; 14. Fixing hole; 15. Pull rod; 16. First spring; 17. Fixing rod; 18. First limiting block; 19. Second spring; 20. Vent hole; 21. Rotating shaft; 22. Rope; 23. Clamping rod; 24. Third spring; 25. Second limiting block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3 This utility model provides an embodiment of a grain size detection device for metallic materials, comprising a base plate 1, which supports the entire device to ensure its stability during operation. A support frame 3 is fixedly connected to the top rear side of the base plate 1, supporting and mounting a microscope 4. The microscope 4 is fixedly connected to the top of the support frame 3, and the microscope 4, together with the subsequent light source 2, forms an upward and downward opposing light path system to ensure uniform illumination of the metal sample surface. A mounting plate 5 is fixedly connected to the bottom front side of the support frame 3, providing support for the installation of a fixing plate 6 and a connecting rod 8. A fixing plate is fixedly connected to the front side of the mounting plate 5. 6. The fixing plate 6 cooperates with the subsequent fixing components to adjust the height of the connecting rod 8. The fixing plate 6 has connecting rods 8 on both the left and right sides. The connecting rods 8 are used to support the stage 9. At the same time, by adjusting the height of the connecting rods 8, the position of the stage 9 can also be adjusted. The stage 9 is fixedly connected between the two connecting rods 8. The stage 9 is used to place the metal to be tested. The outer walls of the left and right sides of the base plate 1 are equipped with stabilizing components. The stabilizing components are used to ensure the tightness of the base plate 1 on the table or other platform. The connecting rod 8 has a fixing component inside. The fixing component is used to fix the connecting rod 8.

[0033] Reference Figure 2The stabilizing assembly includes two connecting plates 10, which are fixedly connected to the outer wall of the base plate 1. The connecting plates 10 connect the stabilizing assembly and the base plate 1, ensuring that the stabilizing assembly can accurately stabilize the base plate 1 during operation. A cylinder 11 is fixedly connected to the middle of the connecting plates 10, providing space for other subsequent components. A suction cup 12 is fixedly connected to the bottom of the cylinder 11, which is used to change the internal air pressure to adhere the base plate 1 to the table surface. A piston 13 is slidably connected inside the cylinder 11, and the piston 13 slides to adjust the air pressure inside the cylinder 11. The piston 13 is modified to adjust the internal pressure of the suction cup 12. A pull rod 15 is fixedly connected to the top of the piston 13. The pull rod 15 is used to pull and drive the piston 13 to slide. A first spring 16 is sleeved on the outer wall of the pull rod 15. The first spring 16 is used to provide elastic force to push the piston 13 to reset. When stabilization is not required, the air inside the cylinder 11 can be quickly discharged, thereby increasing the air pressure inside the suction cup 12. A locking component is provided inside the cylinder 11. The locking component is used to fix the piston 13 in a designated position so that the air pressure inside the cylinder 11 remains constant.

[0034] Reference Figure 3 The locking assembly includes a first limiting block 18, the outer wall of which is slidably connected to the inner wall of the cylinder 11. The first limiting block 18 is used to limit the fixing rod 17 to prevent the fixing rod 17 from sliding excessively out of the cylinder 11 and causing the locking assembly to lose its function. The fixing rod 17 is fixedly connected to the middle of the first limiting block 18. The fixing rod 17 is used to engage with the subsequent fixing hole 14 to fix the piston 13. A second spring 19 is sleeved on the outer wall of the fixing rod 17. The second spring 19 is used to provide elastic force to push the first limiting block 18 to slide, and further drive the fixing rod 17 to slide, so as to achieve the effect of engaging the fixing rod 17 with the fixing hole 14.

[0035] Reference Figure 5 The fixing component includes a rotating shaft 21, which is rotatably connected inside the connecting rod 8. The rotating shaft 21 drives the rope 22 on its outer wall to be wound or released by rotation. The rope 22 is wound around the outer wall of the rotating shaft 21 and is used to transmit the force of the rotation of the rotating shaft 21, thereby driving the second limiting block 25 to slide. The end of the rope 22 away from the rotating shaft 21 is fixedly connected to the second limiting block 25. The second limiting block 25 is used to limit the locking rod 23 and prevent the locking rod 23 from disengaging from the connecting rod 8. The side of the second limiting block 25 away from the rope 22 is fixedly connected to the locking rod 23. The locking rod 23 is used to engage with the positioning hole 7 to fix the connecting rod 8. The side of the second limiting block 25 away from the locking rod 23 is fixedly connected to the third spring 24. The third spring 24 is used to provide elastic force to push the locking rod 23 to slide, so that the locking rod 23 is always engaged with the positioning hole 7.

[0036] Reference Figure 1 and Figure 2 A light source 2 is fixedly connected to the top of the base plate 1. The light source 2 provides necessary illumination for the detection process, ensuring that the surface of the metal material sample is fully illuminated so that the microscope 4 can clearly observe the grain size. A vent hole 20 is provided at the bottom of the cylinder 11. The vent hole 20 ensures that the air inside the suction cup 12 can be effectively drawn into the cylinder 11, and at the same time, it also facilitates the rapid discharge of the air inside the cylinder 11.

[0037] Reference Figure 2 The piston 13 has a fixing hole 14 on its outer wall. The fixing rod 17 passes through the cylinder 11 and engages with the fixing hole 14. The engagement fixes the piston 13 in a designated position, maintains stable air pressure inside the cylinder 11, and ensures that the suction cup 12 can be continuously and stably adsorbed on the placement table.

[0038] Reference Figure 2 The pull rod 15 is square, which prevents it from rotating during pulling, thus ensuring that the fixing rod 17 can effectively engage with the fixing hole 14. One end of the first spring 16 is fixedly connected to the inner wall of the cylinder 11, and the other end is fixedly connected to the top of the piston 13. This allows the piston 13 to be effectively pushed back to its original position after being compressed, facilitating the next stabilization operation.

[0039] Reference Figure 4 and Figure 5 Multiple positioning holes 7 are provided on both the left and right sides of the fixing plate 6. The multiple positioning holes 7 facilitate the adjustment of the height of the connecting rod 8, so that the platform 9 can be fixed at different heights. The locking rod 23 passes through the connecting rod 8 and engages with the positioning holes 7. The engagement ensures the stability of fixing the platform 9.

[0040] Reference Figure 5 The outer wall of the second limiting block 25 is slidably connected to the inside of the connecting rod 8. The sliding of the second limiting block 25 ensures stable movement under the drive of the rope 22, thereby accurately controlling the position of the locking rod 23. The end of the third spring 24 away from the second limiting block 25 is fixedly connected to the inner wall of the connecting rod 8, ensuring that the third spring 24 can effectively transmit the elastic force to the second limiting block 25 during the reset process, thereby driving the second limiting block 25 to slide and realizing the engagement of the locking rod 23 with the positioning hole 7.

[0041] Working principle: When it is necessary to detect the grain size of metal materials, the connecting plate 10 is placed on the table, and then the pull rod 15 is pulled. When the pull rod 15 is pulled, it will drive the piston 13 to slide. At the same time, the piston 13 slides and compresses the first spring 16, so that the first spring 16 stores potential energy. When the piston 13 slides, it will increase the air pressure inside the cylinder 11 and reduce the air pressure inside the suction cup 12 through the vent 20, so that the suction cup 12 is in closer contact with the table. When the piston 13 slides to the designated position, it will push the first limit block 18 to slide under the elastic force of the second spring 19, which will further cause the fixing rod 17 to slide. The fixing rod 17 will engage with the fixing hole 14 on the outer wall of the piston 13 to fix the piston 13, thereby stabilizing the air pressure inside the cylinder 11 and maintaining the continuous and stable adsorption of the suction cup 12.

[0042] Subsequently, by rotating the shaft 21, the rope 22 will be wound up. When the rope 22 is wound up, it will cause the second limiting block 25 to slide, and at the same time, it will cause the locking rod 23 to slide and compress the third spring 24, so that the third spring 24 stores potential energy. When the locking rod 23 disengages from the positioning hole 7, the position of the connecting rod 8 can be adjusted, and the position of the stage 9 can be further adjusted so that the stage 9 is in the optimal observation position. Then, the shaft 21 is released. At this time, the external force disappears, and the third spring 24 will reset, releasing the stored potential energy, pushing the second limiting block 25 to slide, and further driving the locking rod 23 to slide, so as to achieve the fixed engagement of the locking rod 23 with the positioning hole 7.

[0043] Finally, the metal material sample to be tested is placed on the stage 9, the light source 2 is turned on, the focal length and angle of the microscope 4 are adjusted, and the grain size of the metal material is observed and tested through the microscope 4.

[0044] After the test is completed, turn off the light source 2. Then pull the fixing rod 17 to remove it from the fixing hole 14 of the piston 13. Under the elastic force of the first spring 16, the piston 13 returns to its original position downwards, the air pressure inside the cylinder 11 returns to normal, the suction cup 12 detaches from the table, and the testing device is removed.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. Apparatus for grain size detection of a metallic material, comprising a base plate (1), characterized in that: The bottom plate (1) top rear side is fixedly connected with support frame (3), the support frame (3) top is fixedly connected with microscope (4), the support frame (3) front bottom is fixedly connected with mounting plate (5), the mounting plate (5) front is fixedly connected with fixed plate (6), the left and right sides of fixed plate (6) are all provided with connecting rod (8), two connecting rod (8) between fixedly connected with object table (9), the left and right sides of bottom plate (1) outer wall are all provided with stable assembly, the connecting rod (8) inside is provided with fixed assembly; The stable assembly includes two connecting plates (10), the connecting plate (10) is fixedly connected to the outer wall of the bottom plate (1), the connecting plate (10) is fixedly connected with the cylinder (11) in the middle, the cylinder (11) is fixedly connected with the suction cup (12) at the bottom, the piston (13) is slidably connected inside the cylinder (11), the piston (13) is fixedly connected with the pull rod (15) at the top, the pull rod (15) is provided with the first spring (16) on the outer wall, the cylinder (11) is provided with a locking assembly.

2. The grain size detection device for a metal material according to claim 1, characterized by: The locking assembly includes a first limiting block (18), the first limiting block (18) is slidably connected to the inner wall of the cylinder (11), the first limiting block (18) is fixedly connected with the fixed rod (17) in the middle, the fixed rod (17) is provided with the second spring (19) on the outer wall.

3. The grain size detection device for a metal material according to claim 1, characterized by: The fixed assembly includes a rotating shaft (21), the rotating shaft (21) is rotatably connected inside the connecting rod (8), the rotating shaft (21) is provided with a rope (22) on the outer wall, one end of the rope (22) away from the rotating shaft (21) is fixedly connected with the second limiting block (25), the second limiting block (25) is fixedly connected with the clamping rod (23) on the side away from the rope (22), the second limiting block (25) is fixedly connected with the third spring (24) on the side away from the clamping rod (23).

4. The grain size detection device for a metal material according to claim 2, characterized by: The bottom plate (1) top is fixedly connected with light source (2), the cylinder (11) bottom is provided with a vent hole (20).

5. The grain size detection device for a metal material according to claim 2, characterized by: The outer wall of the piston (13) is provided with a fixing hole (14), the fixed rod (17) penetrates through the cylinder (11) and is clamped with the fixing hole (14).

6. The grain size detection device for a metal material according to claim 2, characterized by: The pull rod (15) is square, one end of the first spring (16) is fixedly connected to the inner wall of the cylinder (11), the other end of the first spring (16) is fixedly connected to the top of the piston (13).

7. The grain size detection device for a metal material according to claim 3, characterized by: The fixed plate (6) is provided with a plurality of positioning holes (7) on the left and right sides, the clamping rod (23) penetrates through the connecting rod (8) and is clamped with the positioning hole (7).

8. The grain size detection device for a metal material according to claim 3, characterized by: The outer wall of the second limiting block (25) is slidably connected inside the connecting rod (8), one end of the third spring (24) away from the second limiting block (25) is fixedly connected to the inner wall of the connecting rod (8).

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