Plate-shaped sample fixing device

Abstract

The utility model provides a plate-shaped sample fixing device, which relates to the technical field of sample processing, and comprises a cylinder, a first limiting part is arranged in one end of the cylinder, an accommodating groove is formed in the outer side of the first limiting part, the accommodating groove is used for accommodating a plate-shaped sample, and the first limiting part is provided with a through hole; the magnetic attraction part is movably arranged in the through hole, and the magnetic attraction part can attract the plate-shaped sample; the push-pull mechanism is arranged at the other end of the cylinder body, is connected with the magnetic attraction part and is used for driving the magnetic attraction part to move in the axial direction of the cylinder body; the problem that in the prior art, a plate-shaped sample is difficult to clamp and fix in the grinding and polishing process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sample processing, and more specifically, relates to a fixing device for plate-shaped samples. Background Art

[0002] In the prior art, before chemical composition detection and metallographic inspection of some metal components, it is necessary to prepare specimens and then expose the structure by grinding. The thickness of some specimens is not more than 5 mm, and the hardness of medium-wide specimens is relatively high and cannot be bent for chemical composition inspection, so it is also necessary to prepare specimens and grind. Such plate-shaped specimens are not easy to clamp during the grinding and polishing process, and excessive clamping force is likely to cause damage or deformation of the plate-shaped specimens. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a fixing device for plate-shaped samples to solve the problem that the plate-shaped samples in the prior art are not easy to clamp and fix during the grinding and polishing process.

[0004] To achieve the above purpose, the utility model provides a fixing device for plate-shaped samples, including:

[0005] A cylinder, one end of the cylinder is internally provided with a first limiting part, and a receiving groove is formed outside the first limiting part. The receiving groove is used for receiving the plate-shaped sample, and the first limiting part is provided with a through hole;

[0006] A magnetic attraction component, the magnetic attraction component is movably arranged in the through hole, and the magnetic attraction component can adsorb the plate-shaped sample;

[0007] A push-pull mechanism, the push-pull mechanism is arranged at the other end of the cylinder, the push-pull mechanism is connected with the magnetic attraction component and is used for driving the magnetic attraction component to move axially along the cylinder.

[0008] Optionally, the first limiting part is annular, the outer periphery of the first limiting part is connected with the inner periphery of the cylinder, and the inner periphery of the first limiting part forms the through hole.

[0009] Optionally, the receiving groove matches the shape of the plate-shaped sample.

[0010] Optionally, the magnetic attraction component is a magnet.

[0011] Optionally, the push-pull mechanism includes a moving block and a driving structure. The moving block is slidably arranged in the cylinder, and the moving block is connected with the magnetic attraction component. A guiding structure is arranged between the moving block and the inner wall of the cylinder, and the guiding structure can provide guidance for the moving block to move axially along the cylinder.

[0012] Optionally, the guiding structure includes a convex portion and a guiding groove. One of the convex portion and the guiding groove is arranged on the outer side of the moving block, and the other of the convex portion and the guiding groove is arranged on the inner wall of the cylinder body. The convex portion is in sliding fit with the guiding groove.

[0013] Optionally, at least two guiding structures are provided, and the at least two guiding structures are evenly distributed along the circumferential direction of the cylinder body.

[0014] Optionally, the driving structure includes an operating portion rotatably connected to the other end of the cylinder body. A rotating column is arranged on a side of the operating portion close to the moving block, and one end of the rotating column is in threaded connection with a threaded hole on the moving block.

[0015] Optionally, the operating portion is rotatably connected to the other end of the cylinder body through a cover body. A threaded connection portion is arranged on one side of the cover body and is in threaded connection with the other end of the cylinder body. A rotating hole is arranged in the middle of the cover body, and the other end of the rotating column is rotatably connected in the rotating hole.

[0016] Optionally, a second limiting portion is arranged on the outer periphery of the rotating column, and the second limiting portion is clamped with the cover body so that the operating portion cannot move away from the cylinder body.

[0017] The present utility model provides a plate-shaped specimen fixing device, and its beneficial effects are as follows: The plate-shaped specimen fixing device is provided with a receiving groove at one end of the cylinder body. The plate-shaped specimen can be placed in the receiving groove, and the plate-shaped specimen is adsorbed by the magnetic attraction component in the through hole, so as to realize the fixation of the specimen. At the same time, the setting of the pushing and pulling mechanism can drive the magnetic attraction component to move along the axial direction of the cylinder body, so as to adjust the exposure amount of the end of the plate-shaped specimen in the receiving groove exposed outside the cylinder body, so as to polish or grind the large surface of the exposed plate-shaped specimen on a grinding and polishing machine. The plate-shaped specimen fixing device realizes the fixation of the plate-shaped specimen in a way of the receiving groove and magnetic attraction, has simple operation, can avoid test damage or deformation caused by excessive clamping force on the plate-shaped specimen, and is also convenient for adjusting the exposure amount of the specimen.

[0018] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Description of the Drawings

[0019] By describing the exemplary embodiments of the present utility model in more detail in conjunction with the drawings, the above and other objects, features and advantages of the present utility model will become more obvious. Among them, in the exemplary embodiments of the present utility model, the same reference numerals generally represent the same components.

[0020] Figure 1Shows a three-dimensional structural schematic diagram of a plate-shaped specimen fixing device according to an embodiment of the present invention.

[0021] Figure 2 Shows an exploded structural schematic diagram of a plate-shaped specimen fixing device according to an embodiment of the present invention.

[0022] Figure 3 Shows a sectional structural schematic diagram of a plate-shaped specimen fixing device according to an embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1, cylinder body; 2, first limiting part; 3, accommodating groove; 4, magnetic attraction component; 5, moving block; 6, protruding part; 7, guiding groove; 8, operating part; 9, rotating column; 10, cover body; 11, rotating sleeve; 12, second limiting part. Detailed implementation manners

[0025] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0026] As Figures 1 to 3 shown, the present invention provides a plate-shaped specimen fixing device, including:

[0027] A cylinder body 1, with a first limiting part 2 arranged inside one end of the cylinder body 1, and an accommodating groove 3 formed outside the first limiting part 2. The accommodating groove 3 is used to accommodate a plate-shaped specimen, and the first limiting part 2 is provided with a through hole;

[0028] A magnetic attraction component 4, which is movably arranged in the through hole, and the magnetic attraction component 4 can adsorb the plate-shaped specimen;

[0029] A push-pull mechanism, which is arranged at the other end of the cylinder body 1, is connected to the magnetic attraction component 4, and is used to drive the magnetic attraction component 4 to move axially along the cylinder body 1.

[0030] Specifically, to solve the problem that it is difficult to clamp and fix a plate-shaped specimen during grinding and polishing in the prior art, the plate-shaped specimen fixing device provided by the present utility model is provided with a receiving groove 3 at one end of the cylinder body 1. The plate-shaped specimen can be placed in the receiving groove 3, and the plate-shaped specimen is adsorbed by the magnetic attraction component 4 in the through hole, thereby realizing the fixation of the specimen. At the same time, the setting of the push-pull mechanism can drive the magnetic attraction component 4 to move along the axial direction of the cylinder body 1, and thus the exposure amount of the end of the plate-shaped specimen located in the receiving groove 3 and exposed outside the cylinder body 1 can be adjusted, so as to polish or grind the large surface of the exposed plate-shaped specimen on a grinding and polishing machine. The plate-shaped specimen fixing device realizes the fixation of the plate-shaped specimen in a way of the receiving groove 3 and magnetic attraction, with simple operation and can avoid test damage or deformation caused by excessive clamping force on the plate-shaped specimen, and is also convenient for adjusting the exposure amount of the specimen.

[0031] Optionally, the first limiting portion 2 is annular, the outer periphery of the first limiting portion 2 is connected to the inner periphery of the cylinder body 1, and the inner periphery of the first limiting portion 2 forms a through hole.

[0032] Specifically, the shape of the cylinder body 1 can be set according to the shape of the plate-shaped specimen, such as a cylindrical shape or a cylindrical shape with a square cross-section. The first limiting portion 2 serves as the bottom of the receiving groove 3, and its outer periphery is connected to the inner wall of the cylinder body 1, which can be welded or integrally formed.

[0033] Optionally, the receiving groove 3 matches the outer shape of the plate-shaped specimen.

[0034] Specifically, the groove wall of the receiving groove 3 can limit the plate-shaped specimen, and cooperate with the magnetic attraction of the magnetic attraction component 4 to the plate-shaped specimen to realize the fixation of the plate-shaped specimen.

[0035] Optionally, the magnetic attraction component 4 is a magnet.

[0036] Specifically, the steel plate specimen is adsorbed by the magnet, and the outer shape of the magnet is adapted to the through hole, and can push the steel plate specimen outward or pull the steel plate specimen inward under the action of the push-pull mechanism.

[0037] Optionally, the push-pull mechanism includes a moving block 5 and a driving structure. The moving block 5 is slidably arranged in the cylinder body 1, and the moving block 5 is connected to the magnetic attraction component 4. A guiding structure is arranged between the moving block 5 and the inner wall of the cylinder body 1, and the guiding structure can provide guidance for the moving block 5 to move along the axial direction of the cylinder body 1.

[0038] Specifically, the magnetic attraction component 4 is fixed on the moving block 5, the driving structure drives the moving block 5 to move with the magnetic attraction component 4, and the guiding structure provides a guiding effect for the movement of the moving block 5.

[0039] Optionally, the guiding structure includes a protrusion 6 and a guiding groove 7. One of the protrusion 6 and the guiding groove 7 is arranged on the outer side of the moving block 5, and the other is arranged on the inner wall of the cylinder body 1. The protrusion 6 is in sliding fit with the guiding groove 7.

[0040] In this embodiment, as Figure 2 shown, the guiding groove 7 is arranged on the outer side of the moving block 5 along the axial direction of the moving block 5 and the cylinder body 1. Then the protrusion 6 is arranged on the inner wall of the cylinder body 1, and the protrusion 6 is slidably embedded in the guiding groove 7.

[0041] Optionally, at least two guiding structures are provided, and the at least two guiding structures are evenly distributed along the circumferential direction of the cylinder body 1.

[0042] Specifically, it is advisable to provide 1-3 guiding structures.

[0043] In this embodiment, as Figure 2 shown, three guiding structures are evenly distributed along the circumferential direction of the cylinder body 1.

[0044] Optionally, the driving structure includes an operating part 8. The operating part 8 is rotatably connected to the other end of the cylinder body 1. A rotating column 9 is arranged on the side of the operating part 8 close to the moving block 5. One end of the rotating column 9 is in threaded connection with the threaded hole on the moving block 5.

[0045] Specifically, the operating part 8 is a rotating component. The operating part 8 is rotatably connected to the other end of the cylinder body 1 but cannot move axially relative to the cylinder body 1. By rotating the operating part 8, the rotating column 9 is driven to rotate. Utilizing the threaded connection between one end of the rotating column 9 and the moving block 5, the moving block 5 can be driven to move axially along the cylinder body 1, thereby driving the magnetic attraction component 4 to move.

[0046] In this embodiment, the operating part 8 is disc-shaped. For convenient operation and to avoid slipping, the outer peripheral surface of the operating part 8 can be set as a knurled surface or other uneven surfaces.

[0047] Optionally, the operating part 8 is rotatably connected to the other end of the cylinder body 1 through a cover body 10. A threaded connection part is arranged on one side of the cover body 10, and the threaded connection part is in threaded connection with the other end of the cylinder body 1. A rotating hole is arranged in the middle of the cover body 10, and the other end of the rotating column 9 is rotatably connected in the rotating hole.

[0048] Specifically, the cover body 10 is connected to the other end of the cylinder body 1. The rotating column 9 passes through the rotating hole in the middle of the cover body 10 and is in threaded connection with the moving block 5.

[0049] In this embodiment, a rotating sleeve 11 is arranged on one side of the cover body 10, and part of the rotating hole is formed by the rotating sleeve 11.

[0050] Optionally, a second limiting portion 12 is provided on the outer periphery of the rotating column 9, and the second limiting portion 12 is clamped with the cover body 10 so that the operating portion 8 cannot move away from the cylinder body 1.

[0051] Specifically, the second limiting portion 12 mechanically interferes with the cover body 10, so that the operating portion 8 can only rotate and cannot move axially with respect to the cylinder body 1.

[0052] In this embodiment, as Figure 3 shown, the second limiting portion 12 is annular, sleeved on the outer side of the rotating column 9, and is in sliding contact with one end surface of the rotating sleeve 11 close to the moving block 5.

[0053] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A plate-shaped sample fixing device, characterized in that: include: A cylinder, wherein a first limiting portion is disposed inside one end of the cylinder, a receiving groove is formed outside the first limiting portion, the receiving groove is used to receive a plate-shaped sample, and the first limiting portion is provided with a through hole; A magnetic attraction component, which is movably disposed in the through hole and can absorb the plate-shaped sample; A push-pull mechanism is arranged at the other end of the cylinder, the push-pull mechanism is connected to the magnetic attraction component, and is used to drive the magnetic attraction component to move along the axial direction of the cylinder.

2. The plate-shaped sample fixing device according to claim 1, characterized in that: The first limiting portion is annular in shape, the outer periphery of the first limiting portion is connected to the inner periphery of the cylinder, and the inner periphery of the first limiting portion forms the through hole.

3. The plate-shaped sample fixing device according to claim 1, characterized in that: The receiving groove matches the shape of the plate-shaped sample.

4. The plate-shaped sample fixing device according to claim 1, characterized in that: The magnetic attraction component is a magnet.

5. The plate-shaped sample fixing device according to claim 1, characterized in that: The push-pull mechanism includes a moving block and a driving structure. The moving block is slidably arranged in the cylinder and connected to the magnetic attraction component. A guide structure is arranged between the moving block and the inner wall of the cylinder, and the guide structure can provide guidance for the moving block to move axially along the cylinder.

6. The plate-shaped sample fixing device according to claim 5, characterized in that: The guide structure includes a protrusion and a guide groove, one of which is arranged on the outside of the moving block, and the other of which is arranged on the inner wall of the cylinder, and the protrusion is slidably matched with the guide groove.

7. The plate-shaped sample fixing device according to claim 6, characterized in that: At least two guide structures are provided, and the at least two guide structures are evenly distributed along the circumference of the cylinder.

8. The plate-shaped sample fixing device according to claim 5, characterized in that: The driving structure comprises an operating part, which is rotatably connected to the other end of the cylinder. A rotating column is arranged on one side of the operating part close to the moving block, and one end of the rotating column is threadedly connected to a threaded hole on the moving block.

9. The plate-shaped sample fixing device according to claim 8, characterized in that: The operating part is rotatably connected to the other end of the cylinder through the cover body, a threaded connection part is provided on one side of the cover body, the threaded connection part is threadedly connected to the other end of the cylinder, a rotating hole is provided in the middle of the cover body, and the other end of the rotating column is rotatably connected in the rotating hole.

10. The plate-shaped sample fixing device according to claim 9, characterized in that: A second limiting portion is disposed on the outer periphery of the rotating column, and the second limiting portion is engaged with the cover body so that the operating portion cannot move in a direction away from the cylinder body.

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