Metallographic sample piece holder used on automatic grinding and polishing machine

Abstract

The utility model discloses a metallographic sample piece holder used on an automatic grinding and polishing machine, which comprises a supporting seat, stop blocks are rotatably arranged above two sides of the front end of a base of the supporting seat, connecting strips are rotatably arranged above and below the front ends of the two stop blocks, every two connecting strips on the same side form a group, and the connecting strips on the same side form a group. Adjusting frames are arranged at the front ends of the two sets of connecting strips, and vertical bases are arranged on the front faces of the adjusting frames. According to the utility model, through the combination of the adjusting frame, the connecting strip, the stop block and the like, more flexible adjustment can be realized, and the first screw rods at the two ends of the adjusting frame and the second screw rods on the outer side of the stop block can adjust and change the position and the angle of the connecting strip, so that the metallographic sample piece adjusting device adapts to metallographic sample pieces with different shapes, sizes and material properties; and for a sample with a complicated shape, a proper clamping mode can be found by adjusting the components, so that the application range of the clamp holder is effectively expanded.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, specifically to a metallographic sample holder used in an automatic grinding and polishing machine. Background Technology

[0002] Metallographic specimen holders used on automatic grinding and polishing machines are devices used to fix metallographic specimens for grinding and polishing operations on automatic grinding and polishing machines.

[0003] When existing automatic grinding and polishing machines grind metallographic specimens, the specimens are firmly fixed in place by a clamp, and the specimens are controlled to approach and contact the grinding and polishing disc. Then, machining allowances and uneven areas on the specimen surface are removed by grinding or other methods, gradually smoothing the specimen surface.

[0004] Existing metallographic specimen holders used in automatic polishing machines are usually connected to the machine's lifting structure. This results in a limited range of applicability, as the holder can only accommodate metallographic specimens of a single shape. For specimens with complex shapes, special dimensions, or significant differences in material properties, the holder cannot effectively hold them, leading to specimen displacement or tilting during the polishing process and failing to achieve the desired polishing effect.

[0005] Therefore, it is necessary to invent a metallographic specimen holder for use in an automatic grinding and polishing machine to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a metallographic sample holder for use in an automatic grinding and polishing machine, so as to solve the above-mentioned shortcomings in the technology.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a metallographic sample holder for use on an automatic grinding and polishing machine, comprising a support base, wherein blocks are rotatably mounted on the upper sides of both front ends of the support base, and connecting strips are rotatably mounted on the upper and lower ends of the two blocks, wherein every two connecting strips on the same side form a group, and an adjustment frame is provided at the front ends of the two groups of connecting strips, and a stand is provided on the front of the adjustment frame;

[0008] A crossbar is provided between the top of the support base and the upright base. A limit bar is provided on the crossbar. A No. 2 screw is threaded through the outer center position of each of the two stops. A No. 1 screw is threaded through the outer center position of each end of the adjusting frame.

[0009] As a preferred embodiment of this utility model, a through guide groove is provided above the adjustment frame, and a shaft is vertically installed at the front end of every two connecting strips on the same side, with the shafts at the front ends of the two sets of connecting strips slidably disposed at both ends of the guide groove.

[0010] As a preferred embodiment of this utility model, the front of the adjustment frame is provided with multiple pin holes, and multiple pin rods are fixedly installed on the lower back of the stand. The multiple pin rods correspond to the pin holes and are matched and plugged into each other.

[0011] As a preferred embodiment of this utility model, the top of both the support base and the upright base is provided with several insertion holes, the crossbar has a U-shaped structure, and the two ends of the crossbar are respectively inserted into the insertion holes on the top of the support base and the upright base.

[0012] As a preferred embodiment of this utility model, the top of the limiting strip is provided with a through hole, and the top of the limiting strip is slidably sleeved on the crossbar through the through hole. The limiting strip is made of hard rubber material.

[0013] As a preferred embodiment of this utility model, the outer wall of the crossbar is threaded, a nut is threaded on the crossbar, the upper end of the limiting strip is located between two nuts, and the lower end of the limiting strip is vertically located between two blocks or two sets of connecting strips.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. By setting up a combination of components such as adjustment frame, connecting bar and stop, relatively flexible adjustment can be achieved. The No. 1 screw at both ends of the adjustment frame and the No. 2 screw on the outside of the stop can be adjusted to change the position and angle of the connecting bar, thereby adapting to metallographic sample pieces of different shapes, sizes and material properties. For samples with complex shapes, a suitable clamping method can be found by adjusting these components, effectively expanding the applicability of the clamp. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a first-view exploded view of the overall structure of this utility model;

[0019] Figure 3 This is a first-view exploded view of the overall structure of this utility model;

[0020] Figure 4 This is a first-view exploded view of the overall structure of this utility model;

[0021] Figure 5 This is a cross-sectional view of the overall structure of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Support base; 2. Adjusting bracket; 21. Guide groove; 22. No. 1 screw; 23. Pin hole; 3. Connecting strip; 31. Shaft; 4. Stop block; 41. No. 2 screw; 5. Stand; 51. Pin; 6. Insertion hole; 7. Crossbar; 71. Limiting strip; 72. Through hole; 73. Nut. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-5 The metallographic sample holder shown is used on an automatic grinding and polishing machine. It includes a support base 1. Blocks 4 are rotatably installed on the upper sides of the front end of the support base 1. Connecting strips 3 are rotatably installed on the upper and lower sides of the front end of the two blocks 4. Every two connecting strips 3 on the same side form a group. An adjustment frame 2 is provided at the front end of the two groups of connecting strips 3. A stand 5 is provided on the front side of the adjustment frame 2.

[0026] In this example, the support base 1 serves as the foundation of the entire clamp, providing a platform for the installation and support of other components. Its base ensures the stable placement of the clamp on the automatic polishing machine, bearing the weight of the entire clamp and the metallographic sample, guaranteeing that the clamp will not shake or shift during polishing, thus providing a reliable foundation for subsequent precise clamping and stable polishing. The stop blocks 4 are rotatably mounted on both sides above the front end of the support base 1. The angle and position of the stop blocks 4 can be adjusted by a threaded screw 41 running through their outer center. This design allows the stop blocks 4 to be flexibly adjusted according to the shape and size of the metallographic sample, providing initial positioning and support, increasing clamping stability, and adapting to the clamping requirements of sample pieces of different shapes. The shaft 31 at the front end of the connecting strip 3 can slide within the guide groove 21 of the adjusting frame 2, allowing the connecting strip 3 to be adjusted in position according to the size and shape of the sample. This adjustable connection method better adapts to metallographic sample pieces of different sizes and shapes, improving the versatility of the clamp. Meanwhile, the rotatable connection between the connecting bar 3 and the stop block 4 also provides a certain degree of flexibility to the entire clamping structure.

[0027] A crossbar 7 is provided between the top of the support base 1 and the upright base 5. A limit bar 71 is provided on the crossbar 7. A second screw 41 is threaded through the outer center position of each of the two blocks 4. A first screw 22 is threaded through the outer center position of both ends of the adjusting frame 2. The first screw 22 corresponds to the position of the shaft 31 at the front end of the connecting bar 3.

[0028] In this example, screw 22 and screw 41 are used. Screw 22 corresponds to the shaft 31 at one end of the connecting strip 3. When screw 22 is moved at the end of the connecting strip 3, it abuts against shaft 31. Since shaft 31 is integrally connected to the connecting strip 3, the abutment of screw 22 against shaft 31 pushes the connecting strip 3, thereby controlling the angle rotation of the connecting strip 3 and indirectly adjusting its position. Screw 41 abuts against the outside of the irregularly shaped metallographic sample placed inside the stop block 4. The arrangement of these two screws allows the clamp to be finely adjusted according to the specific condition of the metallographic sample, improving the clamp's adaptability to sample pieces of different shapes, sizes, and material properties, and ensuring effective clamping of various sample pieces.

[0029] Furthermore, in the above technical solution, a through guide groove 21 is provided above the adjustment frame 2, and a shaft 31 is vertically installed at the front end of each pair of connecting bars 3 on the same side. The shafts 31 at the front ends of the two sets of connecting bars 3 are slidably arranged at both ends of the guide groove 21.

[0030] Furthermore, in the above technical solution, the front of the adjustment frame 2 is provided with multiple pin holes 23, and multiple pin rods 51 are fixedly installed on the lower back of the stand 5. The multiple pin rods 51 correspond to the pin holes 23 and are matched and connected.

[0031] In this example, the guide groove 21 cooperates with the shaft 31 at the front end of the connecting strip 3, providing guidance for the sliding of the connecting strip 3 and ensuring the stability and accuracy of the connecting strip 3 when adjusting its position. Multiple pin holes 23 on the front side are fitted and inserted into the pins 51 on the lower back of the stand 5, facilitating the fixing of the relative position of the adjusting frame 2 and the stand 5. Depending on the height of the sample piece and the polishing requirements, appropriate pin holes 23 can be selected for connection, achieving effective clamping of different sample pieces.

[0032] Furthermore, in the above technical solution, both the support base 1 and the upright base 5 have several insertion holes 6 on their tops. The crossbar 7 has a U-shaped structure, and its two ends are inserted into the insertion holes 6 on the tops of the support base 1 and the upright base 5, respectively. The U-shaped crossbar 7 connects the support base 1 and the upright base 5 into a stable frame structure. The crossbar 7 provides lateral support and stability for the entire clamp, enhancing the overall rigidity of the clamp. At the same time, the limiting strip 71 provided on the crossbar 7, through its cooperation with the crossbar 7, can further limit and fix the metallographic sample piece.

[0033] Furthermore, in the above technical solution, the top of the limiting strip 71 is provided with a through hole 72, and the top of the limiting strip 71 is slidably sleeved on the crossbar 7 through the through hole 72. The limiting strip 71 is made of hard rubber material.

[0034] Furthermore, in the above technical solution, the outer wall of the crossbar 7 is threaded, and a nut 73 is threadedly installed on the crossbar 7. The upper end of the limiting strip 71 is located between two nuts 73, and the lower end of the limiting strip 71 is vertically located between two stops 4 or two sets of connecting strips 3.

[0035] In this example, the limiting strip 71 can slide freely on the crossbar 7 and be adjusted according to the position and size of the sample piece. The use of hard rubber material not only cushions and protects the sample piece, preventing damage during clamping, but also provides sufficient friction to ensure that the sample piece does not shift during polishing. Furthermore, the position of the limiting strip 71 can be fixed by the nut 73 on the crossbar 7, further enhancing the limiting and fixing effect on the sample piece.

[0036] The metallographic sample holder provided by this utility model, used in an automatic grinding and polishing machine, operates as follows:

[0037] Depending on the shape and size of the metallographic sample to be ground, the rotation of screw 22 is adjusted, thereby abutting the shaft 31 within the guide groove 21 of the adjusting frame 2, and adjusting the position of the connecting strip 3. Meanwhile, the rotation of screw 41 abuts the outer wall of the irregularly shaped metallographic sample placed in the stop block 4, ensuring better fit. The shaft 31 at the front end of the connecting strip 3 slides within the guide groove 21, ensuring the stability and accuracy of the connecting strip 3's position adjustment. After placing the metallographic sample in the clamping space, the sliding limiting strip 71 is brought into contact with the sample, ensuring the sample does not shift during the polishing process. Tightening the nut 73 fixes the limiting strip 71, further enhancing the limiting and fixing effect on the sample, keeping the sample stable throughout the polishing process.

[0038] After the sample holder is fixed on the automatic polishing machine, the machine is started, and the metallographic sample is gradually brought closer to and into contact with the polishing disc under manual control. After polishing is completed, the operator loosens the components according to the disassembly steps, first releasing the limiting strip 71 from fixing the sample, then adjusting the position of the connecting strip 3 and the stop block 4, and finally removing the sample.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A metallographic specimen holder for use in an automatic grinding and polishing machine, comprising a support base (1), characterized in that: The support base (1) has a stop block (4) rotatably installed on both sides of the front end of the base. The two stop blocks (4) have a connecting strip (3) rotatably installed on the front end of the base. Each pair of connecting strips (3) on the same side is a group. The front end of the two groups of connecting strips (3) is provided with an adjustment frame (2). The front of the adjustment frame (2) is provided with a stand (5). A crossbar (7) is provided between the top of the support base (1) and the upright base (5). A limit bar (71) is provided on the crossbar (7). A second screw (41) is threaded through the outer center position of each of the two blocks (4). A first screw (22) is threaded through the outer center position of each end of the adjusting frame (2).

2. The metallographic specimen holder for use in an automatic grinding and polishing machine according to claim 1, characterized in that: The adjustment frame (2) has a through guide groove (21) on its upper part. A shaft (31) is vertically installed at the front end of each pair of connecting strips (3) on the same side. The shafts (31) at the front ends of the two sets of connecting strips (3) are slidably arranged at both ends of the guide groove (21).

3. A metallographic specimen holder for use in an automatic grinding and polishing machine according to claim 1, characterized in that: The front of the adjustment frame (2) is provided with multiple pin holes (23), and multiple pins (51) are fixedly installed on the lower back of the stand (5). The multiple pins (51) correspond to the pin holes (23) and are matched and connected.

4. A metallographic specimen holder for use in an automatic grinding and polishing machine according to claim 1, characterized in that: The top of the support base (1) and the stand (5) are provided with several insertion holes (6). The crossbar (7) has a U-shaped structure, and the two ends of the crossbar (7) are respectively inserted into the insertion holes (6) at the top of the support base (1) and the stand (5).

5. A metallographic specimen holder for use in an automatic grinding and polishing machine according to claim 1, characterized in that: The top of the limiting strip (71) is provided with a through hole (72), and the top of the limiting strip (71) is slidably sleeved on the crossbar (7) through the through hole (72). The limiting strip (71) is made of hard rubber material.

6. A metallographic specimen holder for use in an automatic grinding and polishing machine according to claim 1, characterized in that: The outer wall of the crossbar (7) is threaded, and a nut (73) is threaded on the crossbar (7). The upper end of the limiting strip (71) is located between two nuts (73), and the lower end of the limiting strip (71) is vertically located between two stops (4) or two sets of connecting strips (3).

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