Positioning metallographic polishing sample preparation fixing device

Abstract

The utility model discloses a positionable metallographic polishing sample preparation fixing device, and relates to the technical field of metallographic polishing fixation, the positionable metallographic polishing sample preparation fixing device comprises a device body, a fixing plate is arranged in the device body, track grooves are symmetrically formed in the two sides of the fixing plate, and clamping plates are slidably connected in the track grooves; the positioning metallographic polishing sample preparation fixing device comprises a device body, a fixing plate is arranged on the device body, a first screw rod is rotationally connected to the axis of one side of the fixing plate, the outer side of the first screw rod is sleeved with a threaded ring in a threaded mode, a connecting rod is rotationally connected between the threaded ring and a clamping plate, and an adjusting mechanism for limiting the fixing plate to move in the device body is arranged on the device body. By arranging the clamping plates, the connecting rod and other structures for linkage adjustment, the two symmetrical clamping plates can be matched to clamp a sample, the mode does not need to use glue for fixation for multiple times, the sample dismounting process is simple and convenient, and therefore the sample fixing stability and use convenience are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of metallographic polishing fixing technology, specifically a positioning metallographic polishing sample fixing device. Background Technology

[0002] Metallography refers to the chemical composition of metals or alloys, as well as the physical and chemical states of various components within the alloy. The metallographic sample preparation process involves four steps: cutting and taking samples, mounting samples, mechanical sample preparation, and sample inspection. Currently, the standard procedure for mounting samples is to mount the samples in resin for easy handling, which can improve the sample preparation effect.

[0003] Extensive research revealed that Chinese Utility Model Patent Publication No. CN212340788U discloses a positioning metallographic polishing sample fixing device. The fixing device has an internal through-hole, which, along the axial direction, consists of a moving hole, a central hole, and an outlet hole. A pre-tightening rod is fitted inside the moving hole, and the bottom of the pre-tightening rod is detachably connected to an adhesive piece. The adhesive piece is located inside the central hole and can move axially within the central hole under the action of the pre-tightening rod. A positioning element is radially arranged on the fixing device to control the pushing length of the pre-tightening rod, thereby adjusting the position of the metallographic surface to be polished.

[0004] While the above-mentioned approach has many advantages, it also has the following disadvantages: the device uses glue to fix the sample to the adhesive sheet, which is not only cumbersome but also makes it difficult to easily separate the sample from the adhesive sheet. Furthermore, the method of using magnets to attract the adhesive sheet can affect the stability of sample processing. Utility Model Content

[0005] The purpose of this invention is to provide a positioning metallographic polishing sample preparation and fixing device to solve the problem of the cumbersome use of the existing positioning metallographic polishing sample preparation and fixing device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning metallographic polishing sample fixing device, comprising a device body, a fixing plate disposed within the device body, track grooves symmetrically opened on both sides of the fixing plate, a clamping plate slidably connected within the track grooves, a first screw rotatably connected at the axial center of one side of the fixing plate, a threaded ring threaded on the outer side of the first screw, a connecting rod rotatably connected between the threaded ring and the clamping plate, and an adjustment mechanism provided on the device body to limit the movement of the fixing plate within the device body.

[0007] Preferably, the adjusting mechanism includes two fixed rods fixedly connected to one side of the fixed plate, a connecting plate fixedly connected between the movable ends of the two fixed rods, a second screw rotatably connected between the connecting plate and the fixed plate, and a first screw rotatably connected between the connecting plate and the fixed plate. The fixed rod and the second screw are both located outside the first screw, and the fixed rod and the second screw are both offset from the connecting rod. A notch is provided on the outer side of the threaded ring at the corresponding position of the fixed rod and the second screw, and the fixed rod and the second screw are respectively disposed in each notch cavity.

[0008] Preferably, the device body has an internal intermediate cavity, and the inner walls on both sides of the intermediate cavity are respectively formed with a through outlet and a movable cavity. The intermediate cavity has a threaded hole and two through holes on one side of the movable cavity. The two fixed rods slide in the two through hole cavities respectively. The second screw is threadedly connected to the threaded hole cavity on the device body. The first screw is located inside the movable cavity. The fixed plate slides in the intermediate cavity cavity. The outer diameter of the outlet and the movable cavity is smaller than the outer diameter of the intermediate cavity.

[0009] Preferably, the clamping plate has wire grooves on both sides, and wire rods are fixedly connected to the inner walls on both sides of the track groove, with the wire rods located inside the cavity of the wire groove.

[0010] Preferably, the movable ends of the first screw and the second screw are both fixedly connected to a rocker plate, and both rocker plates are located on the side of the connecting plate away from the fixed plate.

[0011] Preferably, a concave groove is provided on one side of the fixing plate, a magnet is installed in the cavity of the concave groove, an adhesive piece is attached to one side of the magnet, an adhesive layer is applied to the inner wall of the concave groove, and the magnet is adhered to the inner wall of the concave groove through the adhesive layer.

[0012] Preferably, the clamping plate includes a slider and an extension plate fixedly connected to each other, and the two extension plates are both stepped on opposite sides. The extension plate includes a crossbar and an arc plate fixedly connected to each other, the crossbar and the arc plate are arranged perpendicular to each other, and the side of the arc plate away from the crossbar is stepped.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application sets up clamping plates and connecting rods and other structures for linkage adjustment, so that two symmetrical clamping plates can cooperate to clamp the sample. This method does not require multiple applications of glue for fixing, and the sample assembly and disassembly process is simple and convenient, thus effectively improving the stability of sample fixing and the ease of use.

[0015] 2. This application uses a clamping plate to hold the sample, thereby improving the stability of metallographic polishing and avoiding the problem of unstable sample processing caused by the instability of magnetic adsorption. Therefore, it effectively improves the stability of the positioning metallographic polishing sample preparation and fixing device.

[0016] 3. This application replaces the positioning pin fixing method in the prior art by setting a second screw, and allows the fixing position or extension length of the sample to be adjusted arbitrarily after fixing, thereby avoiding the limitation of sample position adjustment due to the position of the round hole. Therefore, it effectively improves the applicability and practicality of the positioning metallographic polishing sample fixing device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall positioning metallographic polishing sample fixing device of this utility model;

[0018] Figure 2 This is a three-dimensional cross-sectional view of the overall positioning metallographic polishing sample preparation and fixing device of this utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the cooperation between the fixing plate, the first screw, and the clamping plate of the positioning metallographic polishing sample fixing device of this utility model;

[0020] Figure 4 This is a three-dimensional cross-sectional view of the fixing plate, the first screw, and the clamping plate of the positioning metallographic polishing sample fixing device of this utility model.

[0021] The following are the labels in the diagram: 1. Device body; 2. Fixing plate; 3. Track groove; 4. Clamping plate; 401. Slider; 402. Extension plate; 5. First screw; 6. Threaded ring; 7. Connecting rod; 8. Fixing rod; 9. Connecting plate; 10. Second screw; 11. Intermediate cavity; 12. Outlet; 13. Moving cavity; 14. Wire groove; 15. Wire rod; 16. Shaking plate; 17. Magnet; 18. Adhesive sheet. Detailed Implementation

[0022] 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.

[0023] Example: Figures 1-4As shown, this utility model provides a technical solution for a positioning metallographic polishing sample fixing device, including a device body 1, a fixing plate 2 is provided inside the device body 1, and track grooves 3 are symmetrically opened on both sides of the fixing plate 2. A clamping plate 4 is slidably connected in the track grooves 3. A first screw 5 is rotatably connected at the axis of one side of the fixing plate 2. A threaded ring 6 is threaded on the outer side of the first screw 5. A connecting rod 7 is rotatably connected between the threaded ring 6 and the clamping plate 4. An adjustment mechanism is provided on the device body 1 to limit the movement of the fixing plate 2 within the device body 1.

[0024] The sample is placed from the outlet 12 cavity into the middle cavity 11 cavity of the device body 1, and the sample is brought into contact with one side of the fixing plate 2. Then the first screw 5 is rotated, which drives the threaded ring 6 away from or closer to the fixing plate 2. Thus, the two clamping plates 4 are brought closer to each other and clamped by the connecting rod 7, thus completing the fixation of the sample.

[0025] like Figures 1-4 As shown, the adjustment mechanism includes two fixed rods 8 fixedly connected to one side of the fixed plate 2. A connecting plate 9 is fixedly connected between the movable ends of the two fixed rods 8. A second screw 10 is rotatably connected between the connecting plate 9 and the fixed plate 2. A first screw 5 is rotatably connected between the connecting plate 9 and the fixed plate 2. The fixed rods 8 and the second screw 10 are both located outside the first screw 5, and the fixed rods 8 and the second screw 10 are both offset from the connecting rod 7. Notches are opened on the outer side of the threaded ring 6 at the corresponding positions of the fixed rods 8 and the second screw 10. The fixed rods 8 and the second screw 10 are respectively set in the cavity of each notch.

[0026] like Figure 2 As shown, the device body 1 has an internal intermediate cavity 11. The inner walls of the two sides of the intermediate cavity 11 are respectively formed with a through outlet 12 and a movable cavity 13. The intermediate cavity 11 has a threaded hole and two through holes on one side of the movable cavity 13. Two fixed rods 8 slide in the two through hole cavities respectively. The second screw 10 is threaded into the threaded hole cavity on the device body 1. The first screw 5 is located inside the movable cavity 13. The fixed plate 2 slides in the cavity of the intermediate cavity 11. The outer diameter of the outlet 12 and the movable cavity 13 is smaller than the outer diameter of the intermediate cavity 11.

[0027] By rotating the second screw 10, the second screw 10 drives the fixing plate 2 to slide in the cavity of the intermediate cavity 11 through the threaded hole, and thus the length of the sample extending out of the outlet 12 can be adjusted.

[0028] like Figure 2 and Figure 4 As shown, wire grooves 14 are provided on both sides of the clamping plate 4, and wire rods 15 are fixedly connected to the inner walls on both sides of the track groove 3. The wire rods 15 are located in the cavity of the wire groove 14.

[0029] The cooperation between the rod 15 and the groove 14 can stabilize the clamping plate 4 within the cavity of the track groove 3, thereby improving the stability of the movement of the clamping plate 4.

[0030] like Figures 1-4 As shown, the movable ends of the first screw 5 and the second screw 10 are both fixedly connected to a rocker plate 16, and both rocker plates 16 are located on the side of the connecting plate 9 away from the fixed plate 2.

[0031] By rotating the two rocker plates 16, the two rocker plates 16 respectively drive the first screw 5 and the second screw 10 to rotate.

[0032] like Figure 2 As shown, a concave groove is provided on one side of the fixing plate 2, and a magnet 17 is installed in the cavity of the concave groove. An adhesive piece 18 is attached to one side of the magnet 17. An adhesive layer is applied to the inner wall of the concave groove, and the magnet 17 is attached to the inner wall of the concave groove through the adhesive layer.

[0033] The adhesive piece 18 is made of metal, so it can be attached to the fixing plate 2 by using the magnet 17.

[0034] like Figure 4 As shown, the clamping plate 4 includes a slider 401 and an extension plate 402 that are fixedly connected to each other. The two extension plates 402 are both set in a stepped shape on the opposite side. The extension plate 402 includes a crossbar and an arc plate that are fixedly connected to each other. The crossbar and the arc plate are set perpendicular to each other. The side of the arc plate away from the crossbar is set in a stepped shape.

[0035] The sample is held stably by two curved plates.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A positioning device for metallographic polishing and sample preparation, comprising a device body (1), characterized in that: The device body (1) is provided with a fixed plate (2), both sides of the fixed plate (2) are symmetrically provided with a track groove (3), the track groove (3) is slidably connected with a clamping plate (4), a first screw rod (5) is rotatably connected with the fixed plate (2) on one side of the shaft, a threaded ring (6) is threadedly connected with the outside of the first screw rod (5), a connecting rod (7) is rotatably connected between the threaded ring (6) and the clamping plate (4), and an adjusting mechanism is arranged on the device body (1) to limit the movement of the fixed plate (2) in the device body (1).

2. The positionable metallographic polishing preparation fixture of claim 1, wherein: The adjusting mechanism comprises two fixed rods (8) fixedly connected to one side of the fixed plate (2), a connecting plate (9) fixedly connected between the movable ends of the two fixed rods (8), a second screw rod (10) rotatably connected between the connecting plate (9) and the fixed plate (2), and the first screw rod (5) is rotatably connected between the connecting plate (9) and the fixed plate (2).

3. The positionable metallographic polishing and specimen preparation fixture of claim 2, wherein: The device body (1) is internally provided with an intermediate cavity (11), the two side inner walls of the intermediate cavity (11) are respectively formed with a through-type outlet (12) and a moving cavity (13), the intermediate cavity (11) is provided with a threaded hole and two through holes on one side of the moving cavity (13), the two fixed rods (8) are respectively slidably arranged in the two through hole cavities, the second screw rod (10) is threadedly connected in the threaded hole cavity of the device body (1), and the first screw rod (5) is arranged in the moving cavity (13).

4. The positionable metallographic polishing and specimen preparation fixture of claim 3, wherein: Both sides of the clamping plate (4) are provided with a wire groove (14), and wire rods (15) are fixedly connected to the inner walls of both sides of the track groove (3), and the wire rods (15) are arranged in the wire groove (14).

5. The positionable metallographic polishing and specimen preparation fixture of claim 4, wherein: The movable ends of the first screw rod (5) and the second screw rod (10) are fixedly connected with a rocking disc (16), and the two rocking discs (16) are arranged on the side of the connecting plate (9) away from the fixed plate (2).

6. The positionable metallographic polishing and specimen preparation fixture of claim 1, wherein: A concave groove is formed on one side of the fixed plate (2), a magnet (17) is arranged in the concave groove, and a sticky sheet (18) is attached to one side of the magnet (17).

7. The positionable metallographic polishing and specimen preparation fixture of claim 1, wherein: The clamping plate (4) comprises a sliding block (401) and an extension plate (402) fixedly connected to each other, and the opposite sides of the two extension plates (402) are arranged in a stepped shape.

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