A metallographic sample preparation auxiliary device

Abstract

The present invention provides a metallographic sample preparation auxiliary device, comprising a support, a pressure plate assembly, and a spring assembly, wherein the pressure plate assembly is fixed on the support by the spring assembly. The metallographic sample preparation auxiliary device of the present invention adopts a pressure plate assembly to fix a sample line to ensure that the sample line is vertical, thereby improving the accuracy of metallographic sample preparation, and can also prepare multiple metallographic samples of various specifications at the same time, avoiding the dispersion of metallographic sample preparation, ensuring the accuracy of metallographic detection, and the overall structure of the device is simple, easy to operate, and improves production efficiency.

Description

Technical Field

[0001] The invention relates to the field of sample line detection, and in particular to a metallographic sample preparation auxiliary device. Background Art

[0002] Metallographic testing is an important means of testing the conductor and insulation forming conditions of winding wires. The level of metallographic sample production directly affects the test results. The sample line must be kept vertical to ensure that the obtained section is the cross-section of the sample line. If there is an angle between the sample line and the section, the test result will be biased, affecting the accuracy of the test. The method of fixing the sample line when making metallographic samples basically depends on the production technology level of the production personnel, resulting in a relatively large dispersion. When multiple metallographic samples are required at the same time, it is inefficient to make metallographic samples one by one, which affects the test efficiency. Summary of the invention

[0003] In view of the shortcomings of the prior art, the present invention provides a metallographic sample preparation auxiliary device, which can ensure that the sample is vertical when preparing the metallographic sample, and can prepare multiple metallographic samples of various specifications at the same time. The device has a simple structure, is easy to operate, and has high metallographic sample preparation efficiency. The technical solution adopted by the present invention is:

[0004] A metallographic sample preparation auxiliary device comprises a support, a pressing plate assembly and a spring assembly, wherein the pressing plate assembly is fixed on the support via the spring assembly.

[0005] Preferably, the auxiliary device for metallographic sample preparation, wherein: a TU-shaped groove is arranged on the support, a pressure plate assembly is arranged in the TU-shaped groove, two grooves are arranged on the outer surface of the support, a spring assembly is arranged in each of the grooves, the spring assembly presses the pressure plate assembly tightly in the TU-shaped groove, and a circular cavity is arranged at the lower part of the support.

[0006] Preferably, the metallographic sample preparation auxiliary device, wherein: the pressure plate assembly includes a first Chinese-character TU-shaped plate and a second Chinese-character TU-shaped plate arranged in sequence from bottom to top in the Chinese-character TU-shaped groove, and the shapes of the first Chinese-character TU-shaped plate and the second Chinese-character TU-shaped plate are the same as the shape of the Chinese-character TU-shaped groove and cooperate with each other.

[0007] Preferably, in the metallographic sample preparation auxiliary device, the length of the second U-shaped plate on both sides is smaller than the length of the first U-shaped plate on both sides, protrusions are provided on both sides of the first U-shaped plate, and the second U-shaped plate on both sides is fixed by the protrusions of the first U-shaped plate.

[0008] Preferably, in the auxiliary device for making metallographic samples, the top of each of the first U-shaped plate and the second U-shaped plate is configured to be wedge-shaped.

[0009] Preferably, the metallographic sample preparation auxiliary device, wherein: the spring assembly includes two groups of spring parts, each group of spring parts includes a spring and a steel roller, the spring and the steel roller are connected to form a ring, the spring is arranged on the outside of the support, the steel roller is arranged on the top of the pressure plate assembly, and the spring presses the pressure plate assembly through the steel roller.

[0010] Advantages of the present invention: The metallographic sample preparation auxiliary device of the present invention adopts a pressure plate assembly to fix the sample line to ensure that the sample line is vertical, thereby improving the accuracy of metallographic sample preparation. It can also prepare multiple metallographic samples of various specifications at the same time, avoiding the dispersion of metallographic sample preparation, ensuring the accuracy of metallographic detection, completing the preparation of multiple samples at one time, improving the detection efficiency, the overall structure of the device is simple, the operation is convenient, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structural composition of the present invention.

[0012] Figure 2 for Figure 1 Schematic diagram of the support structure.

[0013] Figure 3 This is the front view of the first earth-shaped plate.

[0014] Figure 4 This is the left view of the first earth-shaped plate.

[0015] Figure 5 This is the main view of the second earth-shaped plate.

[0016] Figure 6 This is the left view of the second earth-shaped plate.

[0017] Figure 7 This is a schematic structural diagram of the spring assembly of the present invention.

[0018] Figure 8 It is a schematic diagram of a specific implementation of the present invention.

[0019] In the figure: 1, support, 2, pressure plate assembly, 3, spring assembly, 11, TU-shaped groove, 12, groove, 13, circular cavity, 21, first TU-shaped plate, 22, second TU-shaped plate, 31, spring, 32, steel roller; 33, sample line, 34, metallographic mold. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0021] like Figures 1 to 8 As shown: The present invention provides a metallographic sample preparation auxiliary device, which includes a support 1, a pressure plate assembly 2, and a spring assembly 3. The pressure plate assembly 2 is fixed on the support 1 through the spring assembly 3.

[0022] Wherein: a TU-shaped groove 11 is arranged on the support 1, a pressure plate assembly 2 is arranged in the TU-shaped groove 11, two grooves 12 are arranged on the outer surface of the support 1, a spring assembly 3 is arranged in each of the grooves 12, the spring assembly 3 presses the pressure plate assembly 2 in the TU-shaped groove 11, and a circular cavity 13 is arranged at the lower part of the support 1.

[0023] Wherein: the pressure plate assembly includes a first Chinese-shaped plate 21 and a second Chinese-shaped plate 22 which are arranged in sequence in the Chinese-shaped groove 11 from bottom to top. The shapes of the first Chinese-shaped plate 21 and the second Chinese-shaped plate 22 are the same as the shape of the Chinese-shaped groove 11 and cooperate with each other.

[0024] The length of both sides of the second TU-shaped plate 22 is smaller than that of both sides of the first TU-shaped plate 21 . Both sides of the first TU-shaped plate 21 are provided with protrusions, and both sides of the second TU-shaped plate 22 are fixed by the protrusions of the first TU-shaped plate 21 .

[0025] Wherein: the top of each of the first U-shaped plate 21 and the second U-shaped plate 22 is configured to be wedge-shaped.

[0026] Wherein: the spring assembly 3 includes two groups of spring parts, each group of spring parts includes a spring 31 and a steel roller 32, the spring 31 and the steel roller 32 are connected to form a ring, the spring 31 is arranged on the outside of the support 1, and the steel roller 32 is arranged on the pressure plate assembly 2, and the spring 31 presses the pressure plate assembly 2 through the steel roller 32.

[0027] Specific implementation of the auxiliary device for metallographic sample preparation: Figure 8 As shown, first clamp the sample line 33 in the middle of the pressure plate assembly and adjust the height. Put metallographic powder and metallographic liquid in the metallographic mold 34 and mix them. After mixing, put them in the circular cavity of the support. Put the device with the sample line on the metallographic mold, insert the lower end of the sample line into the mixed liquid, let it stand until the metallographic structure is solidified, then take it out, remove the excess part of the sample line and grind it to obtain a metallographic sample.

[0028] The metallographic sample preparation auxiliary device of the present invention adopts a pressure plate assembly to fix the sample line to ensure that the sample line is vertical, thereby improving the accuracy of metallographic sample preparation. It can also prepare multiple metallographic samples of various specifications at the same time, avoiding the dispersion of metallographic sample preparation and ensuring the accuracy of metallographic detection. The overall structure of the device is simple, the operation is convenient, and the production efficiency is improved.

[0029] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A metallographic sample preparation auxiliary device, characterized in that: It includes a support (1), a pressing plate assembly (2), and a spring assembly (3). The pressing plate assembly (2) is fixed on the support (1) through the spring assembly (3). A cross-shaped groove (11) is provided on the support (1). The pressing plate assembly (2) is arranged in the cross-shaped groove (11). Two grooves (12) are provided on the outer surface of the support (1). A spring assembly (3) is arranged in each groove (12). The spring assembly (3) presses the pressing plate assembly (2) in the cross-shaped groove (11). A circular cavity (13) is provided at the lower part of the support (1). The spring assembly (3) includes two groups of spring members. Each group of spring members includes a spring (31) and a steel roller (32). The spring (31) and the steel roller (32) are connected into a ring shape. The spring (31) is arranged on the outside of the support (1). The steel roller (32) is arranged on the upper surface of the pressing plate assembly (2). The spring (31) presses the pressing plate assembly (2) through the steel roller (32).

2. The metallographic sample preparation auxiliary device according to claim 1, characterized in that: The pressing plate assembly includes a first cross-shaped plate (21) and a second cross-shaped plate (22) which are sequentially arranged in the cross-shaped groove (11) from bottom to top. The shapes of the first cross-shaped plate (21) and the second cross-shaped plate (22) are the same as the shape of the cross-shaped groove (11) and cooperate with each other.

3. The metallographic sample preparation auxiliary device according to claim 2, characterized in that: The lengths of both sides of the second cross-shaped plate (22) are smaller than the lengths of both sides of the first cross-shaped plate (21). Protruding parts are provided on both sides of the first cross-shaped plate (21). Both sides of the second cross-shaped plate (22) are fixed through the protruding parts of the first cross-shaped plate (21).

4. The metallographic sample preparation auxiliary device according to claim 2, characterized in that: The top of each of the first cross-shaped plate (21) and the second cross-shaped plate (22) is set to be wedge-shaped.

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