有些工件在平面磨床精磨时,往往需要以一平面为基准面。如精加工齿轮(图1)时,先在带有端磨头的内圆磨床上,使用齿面定心夹具将孔和B端面磨出,然后,在平面磨床上以B端面为基准磨A端面。这时,在B面与平面磨床工作台之间垫一(图2)用铜或铝铆上铁钉的垫圈,工件便能被吸住。一般平面磨床工作台都是靠电磁铁吸住工件,电磁铁的磁极S或 Some parts of the surface grinder grinding, often need to use a plane as a reference plane. Such as finishing gear (Figure 1), the first end grinder on the internal grinder, the use of tooth centering fixture to hole and B end surface grinding, and then, in the plane grinder with B end surface grinding A Face. At this time, B and surface grinder table pad (Figure 2) with a copper or aluminum riveted nail washers, the workpiece can be sucked. General surface grinder workbench are by electromagnet sucking the workpiece, solenoid pole S or