对轴承套圈和环形零件的磨削加工,由定心装夹到无心装夹在磨削工艺中是一次重大的改革,对提高产品的加工精度、生产效率、减轻劳动强度、实现单机自动化、降低加工费用,起着重要的作用。我们认为对于环形零件的磨削加工,电磁无心夹具是较为先进的,现将我厂的电磁无心夹具应用情况介绍如下:一、电磁无心夹具一般原理(如图1)以工件端面与外圆定位,利用直流电磁线圈产生磁力,将工件吸在磁极端面上,使工件中心沿着主轴中心O向θ角方向偏移到O＇,从O到O＇的距离为e,e值称为偏心量,当主轴以n/分的转速 Grinding the bearing rings and ring parts is a major reform from centering to centerless clamping in the grinding process. It is a major reform to improve the machining accuracy, production efficiency, labor intensity, single machine automation, Reduce processing costs, plays an important role. We believe that the toroidal parts grinding, electromagnetic inadvertent fixture is more advanced, now my factory electromagnetic inadvertently fixture applications are described below: First, the general principle of electromagnetic inadvertent fixture (Figure 1) with the workpiece end and the outer circle positioning , The use of DC magnetic coil to generate magnetic force, the workpiece sucked in the pole end surface, so that the workpiece center along the spindle center O to O direction offset to O ’, from O to O’ distance e, e value is called eccentric Volume, when the spindle to n / min speed