Semi-automatic metallographic polishing fixture

Abstract

The utility model relates to the technical field of fixtures, specifically a semi-automatic metallographic polishing fixture, including a fixture base, the upper surface of the fixture base is fixedly connected to a guide rail, a cylinder connecting rod mechanism device is arranged inside the fixture base, a pneumatic fixture claw is installed on the inner wall of the guide rail, the cylinder connecting rod mechanism device includes a cylinder, the cylinder is located in the fixture base, the inner wall of the fixture base is fixedly connected to an X-shaped bracket, the X-shaped bracket is sleeved on the cylinder, the output end of the cylinder is fixedly connected to a first connecting rod, one end of the first connecting rod passes through the fixture base, one end of the first connecting rod is fixedly connected to a second connecting rod, and the second connecting rod slides with the inner wall of the guide rail. The utility model and this scheme simplify the material clamping operation, improve the processing efficiency of the equipment, reduce the workload of the user, improve the safety during the processing, and improve the processing accuracy, and are effectively applicable to the large-scale production of materials.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a semi-automatic metallographic polishing clamp. Background Art

[0002] Metallography refers to the chemical composition of metals or alloys and the physical and chemical states of various components inside the alloy. The internal structure of metal materials can only be observed under a microscope. The internal structure seen under a microscope is called microstructure or metallographic structure. Metallographic structure reflects the specific form of metal phase, such as martensite, austenite, ferrite, pearlite, etc. In a broad sense, metallographic structure refers to the mixed state and interaction state of two or more substances in a microscopic state.

[0003] When preparing metallographic blocks, the experimenter needs to hold the metallographic block in one hand and polish it on the polishing machine. During the polishing process, the metallographic block needs to be pressed and clamped firmly. The force on the polishing surface is uneven, and the polishing angle and force need to be adjusted at any time. After polishing for a period of time, high temperature is generated, and the sample block needs to be cooled in cooling water. This polishing method leads to a long preparation time for the metallographic block, and the clamping method needs to be adjusted frequently. The smoothness of the polished surface cannot be guaranteed. Manual grinding and polishing have the problems of low efficiency, poor consistency, high labor intensity, high technical requirements, safety issues, difficulty in achieving fine control, cost issues, and difficulty in adapting to large-scale production. In order to solve and improve these problems, it is necessary to optimize and improve the metallographic polishing. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art, such as the need for frequent adjustment of the clamping mode, the inability to ensure the smoothness of the polished surface, low efficiency, poor consistency, high labor intensity, high technical requirements, safety issues, difficulty in achieving fine control, cost issues, and difficulty in adapting to large-scale production, and to propose a semi-automatic metallographic polishing fixture.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a semi-automatic metallographic polishing fixture, including a fixture base, the upper surface of the fixture base is fixedly connected to a guide rail, a cylinder connecting rod mechanism device is arranged inside the fixture base, a pneumatic fixture claw is installed on the inner wall of the guide rail, a bolt for limiting its rotational movement is arranged on the pneumatic fixture claw, and the inner wall of the pneumatic fixture claw has a serrated feature, which increases the friction force when clamping the metallographic block, so that the metallographic block is not easy to fall during the polishing process, and can increase the force surface with the metallographic block. This scheme simplifies the material clamping operation, improves the processing efficiency of the equipment, reduces the workload of the user, improves the safety during the processing, and improves the processing accuracy, and is effectively applicable to the large-scale production of materials.

[0006] Preferably, the cylinder-connecting rod mechanism device includes a cylinder, which is located in a clamp base. An X-shaped bracket is fixedly connected to the inner wall of the clamp base. The X-shaped bracket is sleeved on the cylinder. The X-shaped bracket is used to fix the cylinder and support the clamp base.

[0007] Preferably, the output end of the cylinder is fixedly connected to a first connecting rod, one end of the first connecting rod passes through the clamp base, one end of the first connecting rod is fixedly connected to a second connecting rod, the second connecting rod slides with the inner wall of the guide rail, the surface of the second connecting rod is fixedly connected to a transmission rod, a ring is provided on the pneumatic clamp claw, one end of the transmission rod is rotatably connected to the surface of the ring, the second connecting rod slides in a groove in the guide rail, and the groove is used to limit the movement of the second connecting rod.

[0008] Preferably, the number of the X-shaped brackets is two, and the two X-shaped brackets are symmetrically arranged.

[0009] Preferably, the first connecting rod is arranged in a vertical direction, and the second connecting rod is arranged in a horizontal direction.

[0010] Preferably, the number of the collars and the number of the transmission rods are both two, and the two collars and the transmission rods are symmetrically arranged.

[0011] Preferably, the longitudinal section of the transmission rod is C-shaped.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the power of the pneumatic clamp claw comes from compressed air. When compressed air is introduced into the cylinder of the clamp, the pressure of the air pushes the piston rod to move, and then the piston rod drives the pneumatic clamp claw to move through the first connecting rod, the second connecting rod, the transmission rod, and the collar. When the compressed air pushes the piston rod, the first connecting rod, the second connecting rod and the transmission rod move in one direction, the clamp claw closes and clamps the workpiece. When the air pressure is reduced or released, the clamp claw opens and releases the workpiece. The semi-automatic metallographic polishing fixture uses a swinging clamp claw, and there is an annular groove on the clamp base. The piston rod is connected to the annular groove to achieve automatic centering, ensure that the grasping torque is finally constant, and facilitate the normal use of the equipment. This solution simplifies the material clamping operation, improves the processing efficiency of the equipment, reduces the workload of users, improves the safety during the processing, and improves the processing accuracy, which is effectively applicable to large-scale production of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional structural schematic diagram of a semi-automatic metallographic polishing fixture proposed for the utility model;

[0015] Figure 2 The utility model provides a schematic diagram of the storage mechanism structure of the semi-automatic metallographic polishing fixture;

[0016] Figure 3 The utility model proposes a semi-automatic metallographic polishing fixture Figure 2 Schematic diagram of the structure at A in the middle;

[0017] Figure 4 The utility model provides a schematic diagram of the auxiliary mechanism structure of the semi-automatic metallographic polishing fixture;

[0018] Figure 5 The utility model proposes a semi-automatic metallographic polishing fixture Figure 4 Schematic diagram of the structure at point B in the middle.

[0019] Legend:

[0020] 1. Pneumatic clamp claw; 2. Guide rail; 3. Clamp base; 4. Cylinder; 5. X-shaped bracket; 6. First connecting rod; 7. Second connecting rod; 8. Transmission rod; 9. Ring. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 5 The utility model provides a technical solution: a semi-automatic metallographic polishing fixture, including a fixture base 3, the upper surface of the fixture base 3 is fixedly connected with a guide rail 2, a cylinder 4 connecting rod mechanism device is arranged inside the fixture base 3, a pneumatic fixture claw 1 is installed on the inner wall of the guide rail 2, and a bolt for limiting its rotational movement is arranged on the pneumatic fixture claw 1. The inner wall of the pneumatic fixture claw 1 has a serrated feature, which is used to increase the friction when clamping the metallographic block, so that the metallographic block is not easy to fall during the polishing process, and can increase the force surface with the metallographic block. This solution simplifies the material clamping operation, improves the processing efficiency of the equipment, reduces the workload of the user, improves the safety during the processing, and improves the processing accuracy, which is effectively applicable to the large-scale production of materials.

[0022] Specifically, the cylinder 4 connecting rod mechanism device includes a cylinder 4, which is located in the clamp base 3. The inner wall of the clamp base 3 is fixedly connected with an X-shaped bracket 5, which is sleeved on the cylinder 4. The X-shaped bracket 5 is used to fix the cylinder 4 and support the clamp base 3.

[0023] In this embodiment: the output end of the cylinder 4 is fixedly connected to the first connecting rod 6, one end of the first connecting rod 6 passes through the clamp base 3, one end of the first connecting rod 6 is fixedly connected to the second connecting rod 7, the second connecting rod 7 slides with the inner wall of the guide rail 2, the surface of the second connecting rod 7 is fixedly connected to the transmission rod 8, the pneumatic clamp claw 1 is provided with a ring 9, one end of the transmission rod 8 is rotatably connected to the surface of the ring 9, the second connecting rod 7 slides in the groove in the guide rail 2, and the groove is used to limit the movement of the second connecting rod 7.

[0024] Specifically, there are two X-shaped brackets 5 , and the two X-shaped brackets 5 are symmetrically arranged.

[0025] In this embodiment: the first connecting rod 6 is arranged in a vertical direction, and the second connecting rod 7 is arranged in a horizontal direction.

[0026] Specifically, the number of the collars 9 and the number of the transmission rods 8 are both two, and the two collars 9 and the transmission rods 8 are symmetrically arranged.

[0027] Specifically, the longitudinal section of the transmission rod 8 is C-shaped.

[0028] Working principle: The power of the pneumatic clamp claw 1 comes from compressed air. When compressed air is introduced into the cylinder 4 of the clamp, the pressure of the air pushes the piston rod to move, and then the piston rod drives the pneumatic clamp claw 1 to move through the first connecting rod 6, the second connecting rod 7, the transmission rod 8, and the collar 9. When the compressed air pushes the piston rod, the first connecting rod 6, the second connecting rod 7 and the transmission rod 8 move in one direction, the clamp jaw closes and clamps the workpiece. When the air pressure is reduced or released, the clamp jaw opens and releases the workpiece. The semi-automatic metallographic polishing fixture uses a swinging clamp jaw, and there is an annular groove on the clamp base 3. The piston rod is connected to the annular groove to achieve automatic centering, ensuring that the grasping torque is finally constant, which is convenient for the normal use of the equipment. This solution simplifies the material clamping operation, improves the processing efficiency of the equipment, reduces the workload of users, improves the safety during the processing, and improves the processing accuracy, which is effectively applicable to the large-scale production of materials.

Claims

1. A semi-automatic metallographic polishing fixture, comprising a fixture base (3), characterized in that: The upper surface of the clamp base (3) is fixedly connected to a guide rail (2), a cylinder (4) connecting rod mechanism device is arranged inside the clamp base (3), and a pneumatic clamp claw (1) is installed on the inner wall of the guide rail (2).

2. The semi-automatic metallographic polishing fixture according to claim 1 is characterized in that: The cylinder (4) connecting rod mechanism device comprises a cylinder (4), wherein the cylinder (4) is located in a clamp base (3), an inner wall of the clamp base (3) is fixedly connected with an X-shaped bracket (5), and the X-shaped bracket (5) is sleeved on the cylinder (4).

3. The semi-automatic metallographic polishing fixture according to claim 2 is characterized in that: The output end of the cylinder (4) is fixedly connected to a first connecting rod (6), one end of the first connecting rod (6) passes through the clamp base (3), one end of the first connecting rod (6) is fixedly connected to a second connecting rod (7), the second connecting rod (7) slides with the inner wall of the guide rail (2), the surface of the second connecting rod (7) is fixedly connected to a transmission rod (8), a collar (9) is sleeved on the pneumatic clamp claw (1), and one end of the transmission rod (8) is rotatably connected to the surface of the collar (9).

4. The semi-automatic metallographic polishing fixture according to claim 2 is characterized in that: The number of the X-shaped brackets (5) is two, and the two X-shaped brackets (5) are symmetrically arranged.

5. The semi-automatic metallographic polishing fixture according to claim 3 is characterized in that: The first connecting rod (6) is arranged in a vertical direction, and the second connecting rod (7) is arranged in a horizontal direction.

6. The semi-automatic metallographic polishing fixture according to claim 3 is characterized in that: The number of the collars (9) and the number of the transmission rods (8) are both two, and the two collars (9) and the transmission rods (8) are symmetrically arranged.

7. The semi-automatic metallographic polishing fixture according to claim 3 is characterized in that: The transmission rod (8) has a C-shaped longitudinal section.

Images