金相研磨機是用涂上或嵌入磨料的研具對工件表面進行研磨的磨制設備。主要類型的金相研磨機有圓盤式研磨機、轉軸式研磨機和各種專用研磨機。其中，專用研磨機按照被研磨工件的不同，可分中心孔研磨機、鋼球研磨機和齒輪研磨機等。
Metallographic grinder is made of painted or embedded abrasive tool grinding workpiece surface grinding equipment. The main types of metallographic grinder are disc type grinding machine, the rotating shaft grinding mill and all kinds of special machine. Among them, the special grinding machine according to different, by grinding the workpiece can be sub-center hole grinding machine, ball grinding machines and gear grinding machine, etc.

  圓盤式研磨機分單盤和雙盤兩種，以雙盤研磨機應用最為普遍。在雙盤研磨機上，多個工件同時放入位于上、下研磨盤之間的夾持架內，夾持架和工件由偏心或行星機構帶動作平面平行運動。
Disc type grinding machine of single plate and double disk, double disc grinding machine used in the most common. In double disc grinding machine, multiple artifacts into at the same time is located in the upper and lower clamping frame between grinding disc, clamping and work-piece driven by eccentric or planet mechanism plane parallel motion.

  轉軸式研磨機由正、反向旋轉的主軸帶動工件或研具（可調式研磨環或研磨棒）旋轉，結構比較簡單，用于研磨內、外圓柱面。
Shaft mill by positive and reverse rotation of the spindle drive the workpiece or tool grinding (adjustable ring or grinding rods), structure is simple, is used for grinding inner and outer cylinder.

  可以說金相研磨機在工件中高精度平面、內外圓柱面、螺紋面和其他型面的研磨上起到了很大的作用
To say the metallographic grinder in the workpiece precision plane type, inner and outer cylinder, thread surface and other surface grinding played a large role.

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