Auxiliary device for metallographic specimen grinding and polishing machine

Abstract

The invention provides an auxiliary device for a metallographic specimen grinding and polishing machine, which comprises a base and a grinding and polishing pressure plate, the base is rotatably connected with a support frame, one end of the support frame is fixedly provided with a slide block shell, the other end of the slide block shell is movably provided with a transverse support, and one side of the transverse support is provided with a butterfly bolt II; a supporting column is installed on the grinding and polishing pressure plate, a hydraulic cylinder is arranged in the supporting column, the hydraulic cylinder is filled with hydraulic media, a plurality of sample grooves and sampling grooves are evenly distributed in the grinding and polishing pressure plate, the sample grooves are located over the sampling grooves, metallographic grinding and polishing samples are located in the sample grooves, and medium flow channels are arranged between the hydraulic cylinder and the sample grooves. A contraction expansion sleeve is movably installed at one end of the medium flow channel, a clamping groove is formed in the top end of the grinding and polishing pressing disc, the pressure during grinding and polishing of a metallographic sample can be controlled, the machining process can be adjusted in time, and the grinding and polishing condition of the sample can be observed in time.

Description

technical field [0001] The invention belongs to the technical field of metallographic sample grinding and polishing machines, and particularly relates to an auxiliary device for a metallographic sample grinding and polishing machine. Background technique [0002] Metal materials are widely used in aerospace, automotive, biomedicine and other fields. In the process of metal material research, the microstructure and properties of materials are of great guiding significance for research work. Among them, metallographic examination has played an extremely important role. Important position, in the preparation of metallographic samples, the preparation of samples usually includes cutting and sampling - mosaic - rough grinding - fine grinding - polishing - corrosion and other processes, in which the grinding and polishing of the sample are two. This is a very important process. The preparation of metallographic samples requires the grinding and polishing surfaces to be smooth, bri...

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Problems solved by technology

[0002] Metal materials are widely used in various fields such as aerospace, automobile, biomedicine, etc. In the process of research on metal materials, the microstructural characteristics and performance of materials have important guiding significance for research work, among which metallographic examination has played an extremely important role. In the process of metallographic sample preparation, sample preparation usually includes various processes such as cutting sampling-inlaying-rough grinding-fine grinding-polishing-corrosion, etc., in which the grinding and polishing of the sample are two It is a very important process. The preparation of metallographic samples requires the grinding and polishing surface to be smooth and bright without traces, and can be clearly imaged. Therefore, the operator's skills are required to be high. Currently, the metallographic sample grinding and polishing machines mainly include automatic grinding and polishing. There are two types of machine and manual grinding and polishing machine. When the existing automatic grinding and polishing machine observes the grinding and polishing of the metallographic sample, it needs to stop the rotation of the grinding and polishing disc before sampling and observing, and the pressure applied when the sample is grinding and polishing is relatively high. Large, resulting in poor grinding and polishing effect, only one sample can be polished at a time, and the workload is huge when grinding and polishing multiple metallographic samples at the same time, and it takes a long time and the efficiency is low

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