金相研磨机是用涂上或嵌入磨料的研具对工件表面进行研磨的磨制设备。主要类型的金相研磨机有圆盘式研磨机、转轴式研磨机和各种专用研磨机。其中，专用研磨机按照被研磨工件的不同，可分中心孔研磨机、钢球研磨机和齿轮研磨机等。
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.

  圆盘式研磨机分单盘和双盘两种，以双盘研磨机应用最为普遍。在双盘研磨机上，多个工件同时放入位于上、下研磨盘之间的夹持架内，夹持架和工件由偏心或行星机构带动作平面平行运动。
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.

  转轴式研磨机由正、反向旋转的主轴带动工件或研具（可调式研磨环或研磨棒）旋转，结构比较简单，用于研磨内、外圆柱面。
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.

  可以说金相研磨机在工件中高精度平面、内外圆柱面、螺纹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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