Metallographic grinding and polishing machine

Abstract

The invention discloses a metallographic grinding and polishing machine. According to the technical scheme, the metallographic grinding and polishing machine is characterized by comprising a base plate, an object carrying plate, a supporting rod and a pressing device, wherein the object carrying plate is rotationally arranged on the upper end face of the base plate, the supporting rod is arrangedon the upper end face of the base plate, and the pressing device is connected to the end, far away from the base plate, of the supporting rod; a first cavity is formed in the object carrying plate, aplurality of object storage holes communicating with the first cavity are formed in the upper end face of the object carrying plate, a plurality of grinding plates are rotationally arranged in the first cavity, and abrasive paper with different particle sizes is detachably arranged on the faces, facing the object storage holes, of the grinding plates; and the pressing device is used for abutting samples below the pressing device against the grinding plates, and the metallographic grinding and polishing machine is further provided with a grinding mechanism used for driving the grinding plates to rotate and a switching mechanism used for driving the object carrying plate to rotate. According to the metallographic grinding and polishing machine, the grinding plates provided with the abrasivepaper with different particle sizes and the switching mechanism are arranged so that the different grinding plates can be selected through the switching mechanism to control the grinding degree of themetallographic samples, and meanwhile the grinding efficiency is improved.

Description

Technical field [0001] The invention relates to the field of grinding and polishing machines, and more specifically to a metallographic grinding and polishing machine. Background technique [0002] Metallographic microscopic analysis is one of the most important methods to study the internal structure of metals. When the surface of the sample is relatively rough, because of the diffuse reflection of the incident light, it is impossible to observe its internal structure with a microscope. Therefore, the surface of the sample should be processed, usually by grinding and polishing, so as to obtain a mirror-like sample surface . Mechanical grinding and polishing refers to a certain mechanical device, in a corresponding contact mode, and under a certain pressure, the surface of the sample to be processed is in contact with the high-speed rotating polishing wheel and friction occurs, and finally the margin of the processed surface Gradually polish away or polish smoothly. [0003] Mos...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing grinding and polishing machines on the market are single-disc structure grinding and polishing machines. When the coarse grinding is turned into fine grinding, it is necessary to stop the machine and manually replace the grinding paper with different particle sizes. The process is cumbersome and affects work efficiency.

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