Adjustable flattening and polishing clamp

Abstract

The utility model discloses an adjustable leveling and polishing clamp which is made of rare earth magnesium alloy, is light in weight, convenient to hold and convenient to use, and compared with a traditional handheld metallographic sample polishing operation, the adjustable leveling and polishing clamp can clamp a small-size metallographic sample, and the polishing efficiency is improved by arranging a clamp body, a cover body, an adjusting screw rod, a bearing plate, a clamping mechanism and a guide sleeve. A metallographic sample can be leveled and polished on a polishing machine by holding the clamp by a worker, the operation is convenient, the polishing quality, the polishing depth and the polishing stability of the small-size sample are improved, the practicability and the safety are high, meanwhile, the grinding and polishing amount of the metallographic sample can be coarsely adjusted and finely adjusted through the adjusting screw rod and the cover body, and the grinding and polishing efficiency of the metallographic sample is improved. The metallographic sample is positioned and supported through the bearing plate, the polished surface of the metallographic sample is parallel to the bottom surface of the sample in cooperation with the guide sleeve, focusing on an optical microscope is facilitated, and thus a surface image with good quality can be obtained.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallographic specimen preparation, and relates to a flattening and polishing fixture for small samples, specifically an adjustable flattening and polishing fixture. Background Technique

[0002] Metallographic preparation is an important process in materials science research experiments. Qualified metallographic samples are what experimenters hope to obtain. Especially in optical microscope observations, there are high requirements for the flatness of the prepared samples, which can avoid local defocusing blur.

[0003] Currently, when preparing metallographic samples, they are mostly held by hand on a metallographic polishing machine. However, sometimes the samples to be polished are small in size, not easy to hold by hand, and cannot be inlaid. During polishing, it will not only affect the polishing quality and polishing depth, but also cause the sample to fly out due to unstable holding. Content of the Utility Model

[0004] To solve the technical problems in the background technique, the utility model proposes an adjustable flattening and polishing fixture, which is easy to hold by hand and improves the polishing quality, polishing depth and polishing stability of small-sized samples.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] An adjustable flattening and polishing fixture includes: a fixture body with a through groove in the middle, a cover body connected to one end of the fixture body, and a carrier plate adaptively arranged in the through groove. The carrier plate is slidably connected to the through groove to slide along the axial direction of the through groove. There is a first threaded hole on the cover body, and an adjusting screw is threadedly connected in the first threaded hole. One end of the adjusting screw passes through the cover body and abuts against one side of the carrier plate. A clamping mechanism is arranged on the other side of the carrier plate to clamp and fix the sample placed on the carrier plate.

[0007] Further, one end of the adjusting screw is a flat end, which is horizontally arranged and abuts against the carrier plate, having good surface roughness. There is a boss at the other end of the adjusting screw.

[0008] Further, one end of the fixture body is provided with a circular plug, and one side of the cover body is provided with a circular slot adapted to the circular plug. There is internal thread on the inner wall of the circular slot, and external thread on the plug. The plug of the fixture body is threadedly connected in the circular slot of the cover body.

[0009] Further, there is a guide rail in the through groove of the fixture body, and a sliding groove adapted to the guide rail is arranged on one side of the carrier plate. The carrier plate is slidably connected to the guide rail in the through groove through the sliding groove.

[0010] Further, the guide rail is a dovetail guide rail, and the sliding groove is a dovetail groove.

[0011] Furthermore, the clamping mechanism includes: a plurality of second threaded holes opened on the side wall of the fixture body and a plurality of clamping threaded posts respectively threadedly connected in the plurality of second threaded holes. The plurality of clamping threaded posts clamp and fix the sample placed on the bearing plate along the axial directions of the plurality of second threaded holes respectively.

[0012] Furthermore, an annular stepped groove is opened at one end of the fixture body, and a plurality of square sunk holes corresponding to the plurality of second threaded holes one by one are opened in the stepped groove. The second threaded holes are opened in the sunk holes.

[0013] Furthermore, it further includes a guiding sleeve adapted to the stepped groove. The guiding sleeve is sleeved on the stepped groove at one end of the fixture body, and the height of the guiding sleeve is the same as the height of the stepped groove.

[0014] Furthermore, the fixture body, the cover body, the bearing plate, the adjusting screw, the clamping mechanism and the guiding sleeve are all made of rare earth magnesium alloy.

[0015] The beneficial effects of the present utility model: The adjustable flattening and polishing fixture provided by the present utility model is made of rare earth magnesium alloy, with light weight, convenient for holding by hand and easy to use. By setting the fixture body, the cover body, the adjusting screw, the bearing plate, the clamping mechanism and the guiding sleeve, compared with the traditional operation of polishing a metallographic sample by hand, it can clamp a metallographic sample with a smaller size. The staff can hold the fixture and perform flattening and polishing of the metallographic sample on the polishing machine, which is convenient for operation, improves the polishing quality, polishing depth and polishing stability of the small-size sample, has high practicability and safety. At the same time, the rough adjustment and fine adjustment of the grinding and polishing amount of the metallographic sample can be respectively carried out through the adjusting screw and the cover body, the bearing plate plays a role of positioning and supporting the metallographic sample, and in cooperation with the guiding sleeve, the polishing surface of the metallographic sample is parallel to the bottom surface of the sample, which is convenient for focusing in the optical microscope, so as to obtain a good-quality surface image. Description of the Drawings

[0016] Figure 1 It is a structural schematic diagram of the present utility model.

[0017] Figure 2 It is a cross-sectional view of the present utility model.

[0018] Figure 3 It is an exploded schematic diagram of the present utility model.

[0019] Figure 4 It is a matching schematic diagram of the cover body and the adjusting screw of the present utility model.

[0020] Figure 5 It is a schematic diagram of the fixture body of the present utility model.

[0021] Figure 6 It is a schematic diagram of the bearing plate of the present utility model. Detailed implementation mode

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0023] As Figures 1-6 shown, the present invention provides an adjustable flattening and polishing fixture, including: a fixture body 1, a cover body 2, a bearing plate 3, an adjusting screw 4, a clamping mechanism 5 and a guiding sleeve 6. Among them, the fixture body 1, the cover body 2, the bearing plate 3, the adjusting screw 4, the clamping mechanism 5 and the guiding sleeve 6 are all made of rare earth magnesium alloy, which is light in weight, convenient to hold and easy to use.

[0024] A through groove 11 is formed in the middle of the fixture body 1. The bearing plate 3 is adaptively arranged in the through groove 11. The sample is placed on the bearing plate 3, and the sample is supported by the bearing plate 3. The bearing plate 3 is slidably connected to the through groove 11 and can slide along the axial direction of the through groove 11. The cover body 2 is connected to one end of the fixture body 1. A first threaded hole is formed in the middle of the cover body 2. The adjusting screw 4 is threadedly connected in the first threaded hole. One end of the adjusting screw 4 passes through the cover body 2 and abuts against one side surface of the bearing plate 3 to drive the bearing plate 3 to slide along the axial direction of the through groove 11, adjust the position of the bearing plate 3 in the through groove 11, and further roughly adjust the grinding and polishing amount of the sample placed on the bearing plate 3. The clamping mechanism 5 is arranged on the other side of the bearing plate 3 to clamp and fix the sample placed on the bearing plate 3, so that a relatively small metallographic sample can be clamped and flattened and polished on a metallographic polishing machine, which is convenient to operate and has high practicability and safety.

[0025] One end of the adjusting screw 4 is a flat end 41. The flat end 41 is horizontally arranged and abuts against the bearing plate 3, having good surface roughness. A boss 42 is provided at the other end of the adjusting screw 4. A circular plug 12 is provided at one end of the fixture body 1. A circular slot 21 adapted to the circular plug 12 is formed on one side of the cover body 2. Internal threads are provided on the inner wall of the circular slot 21, and external threads are provided on the plug 12. The plug 12 of the fixture body 1 is threadedly connected in the circular slot 21 of the cover body 2. Thus, the grinding and polishing amount of the sample can be roughly adjusted and finely adjusted by rotating the adjusting screw 4 and the cover body 2 respectively, so that the polished surface of the sample is parallel to the bottom surface of the sample, which is convenient for focusing under an optical microscope and can obtain a good-quality surface image.

[0026] A guide rail 13 is provided in the through groove 11 of the fixture body 1. A sliding groove 31 adapted to the guide rail 13 is provided on one side of the bearing plate 3. The bearing plate 3 is slidably connected to the guide rail 13 in the through groove 11 through the sliding groove 31. Specifically, the guide rail 13 is a dovetail guide rail, and the sliding groove 31 is a dovetail groove. Through the cooperation of the guide rail 13 and the sliding groove, the sliding of the bearing plate 3 in the through groove 11 is guided, improving the stability of the bearing plate 3 sliding along the through groove 11.

[0027] The clamping mechanism 5 includes: four second threaded holes 51 opened on the side wall of the fixture body 1 and four clamping threaded posts 52 respectively threadedly connected in the four second threaded holes 51. The four clamping threaded posts 52 respectively clamp and fix the sample placed on the bearing plate 3 along the axial directions of the four second threaded holes 51, positioning the metallographic sample at the center position of the bearing plate 3. An annular step groove 14 is opened at one end of the fixture body 1. Four square sinking holes 53 corresponding to the four second threaded holes 51 one by one are opened in the step groove 14. The second threaded holes 51 are opened in the sinking holes 53 to reserve the moving space for the clamping threaded posts 52. The guide sleeve 6 is adapted to the step groove 14. The guide sleeve 6 is sleeved on the step groove 14 at one end of the fixture body 1. The height of the guide sleeve 6 is the same as the height of the step groove 14 to protect the clamping threaded posts 52 moving in the sinking holes 53 from interference.

[0028] The working process of the present utility model: First, horizontally place the metallographic sample on the bearing plate 3, rotate the adjusting screw 4 so that one end thereof abuts against the bearing plate 3 to preliminarily position the metallographic sample on the bearing plate 3. Then, observe the distance by which the metallographic sample protrudes from the fixture body 1. At this time, the position of the bearing plate 3 can be finely adjusted by rotating the cover body 2 as needed. Determine that the amount of the sample to be polished protrudes from the fixture body 1, tighten the four clamping threaded posts 52 to clamp and position the metallographic sample at the center position of the bearing plate 3. Finally, install the guide sleeve 6, start the polishing machine to polish the sample. After polishing is completed, remove the guide sleeve 6, and sequentially loosen the four clamping threaded posts 52, and continue to rotate the adjusting screw 4 to push out the metallographic sample on the bearing plate 3.

[0029] The above content is only an example and explanation of the structure of the present utility model. Those skilled in the art of this technology make various modifications or supplements to the described specific embodiments or use similar methods to replace them. As long as it does not deviate from the structure of the utility model or exceed the scope defined by this claim book, it shall fall within the protection scope of the present utility model.

Claims

1. An adjustable leveling and polishing fixture, characterized in that, Including: A fixture body (1) with a through groove (11) opened in the middle, a cover body (2) connected to one end of the fixture body (1), and a bearing plate (3) adaptively arranged in the through groove (11). The bearing plate (3) is slidably connected to the through groove (11) to slide along the axial direction of the through groove (11). A first threaded hole is provided on the cover body (2), and an adjusting screw rod (4) is threadedly connected in the first threaded hole. One end of the adjusting screw rod (4) passes through the cover body (2) and abuts against one side of the bearing plate (3). A clamping mechanism (5) is provided on the other side of the bearing plate (3) to clamp and fix the sample placed on the bearing plate (3).

2. The flattening and polishing fixture according to claim 1, wherein One end of the adjusting screw rod (4) is a flat end (41), the flat end (41) is horizontally arranged and abuts against the bearing plate (3), and a boss (42) is provided at the other end of the adjusting screw rod (4).

3. The flattening and polishing fixture according to claim 1, characterized in that, A circular plug (12) is provided at one end of the fixture body (1), a circular slot (21) adapted to the circular plug (12) is opened on one side of the cover body (2). Internal threads are provided on the inner wall of the circular slot (21), external threads are provided on the plug (12), and the plug (12) of the fixture body (1) is threadedly connected in the circular slot (21) of the cover body (2).

4. The leveling and polishing fixture according to claim 1, characterized in that, A guide rail (13) is provided in the through groove (11) of the fixture body (1), a sliding groove (31) adapted to the guide rail (13) is opened on one side of the bearing plate (3), and the bearing plate (3) is slidably connected to the guide rail (13) in the through groove (11) through the sliding groove (31).

5. The leveling and polishing fixture according to claim 4, wherein, The guide rail (13) is a dovetail guide rail, and the sliding groove (31) is a dovetail groove.

6. The leveling and polishing fixture according to claim 1, wherein The clamping mechanism (5) includes: a plurality of second threaded holes (51) opened on the side wall of the fixture body (1) and a plurality of clamping threaded columns (52) respectively threadedly connected in the plurality of second threaded holes (51). The plurality of clamping threaded columns (52) respectively clamp and fix the sample placed on the bearing plate (3) along the axial directions of the plurality of second threaded holes (51).

7. The flattening and polishing fixture according to claim 6, wherein A stepped groove (14) is opened at one end of the fixture body (1), a plurality of sunken holes (53) corresponding to the plurality of second threaded holes (51) one by one are opened in the stepped groove (14), and the second threaded holes (51) are opened in the sunken holes (53).

8. The flattening and polishing fixture according to claim 7, wherein It further includes a guide sleeve (6) adapted to the stepped groove (14). The guide sleeve (6) is sleeved on the stepped groove (14) at one end of the fixture body (1), and the height of the guide sleeve (6) is the same as the height of the stepped groove (14).

9. The leveling and polishing fixture according to any one of claims 1-8, characterized in that, The fixture body (1), the cover body (2), the bearing plate (3), the adjusting screw rod (4), the clamping mechanism (5) and the guide sleeve (6) are all made of rare earth magnesium alloy.

Images