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头架是外圆类磨床的主要部件,它的作用是支承工件和传递动力,也即使工件转动。而主轴又是头架的主要零件,它的精度高低对整机的几何精度和工作精度有直接的影响。诸如:头架和尾架主轴中心线的连线和头架中轴中心线对工作台移动的平行度误差,将影响工件中心孔与主轴顶尖的接触情况,并导致工件产生圆度差和母线不平行;头架主轴回转时的轴向窜动及径向跳动也将对采用卡盘装夹磨削产生不良的影响,除了在外圆表面形成螺旋线外,还
Head frame is the main part of cylindrical grinding machine, its role is to support the workpiece and power transmission, but also the workpiece rotation. The spindle is the main part of the head frame, the accuracy of the machine geometry and accuracy of the work has a direct impact. Such as: headstock and tailstock spindle centerline connection and headstock axis centerline on the table movement of the parallelism error will affect the workpiece center hole and the spindle center contact, and cause the workpiece to produce roundness difference and the bus Not parallel; headstock spindle axial movement and radial run-out will also have a chuck clamping chuck adverse effects, in addition to forming a spiral on the outer surface of the circle, but also