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一、概述为了加工精密的球形零件,我们设计了专用球加工机床。该机床主轴采用了液体静压轴承。经过调试与试件试切,主轴旋转精度良好,满足了设计的要求。为加工精密球形零件,对静压主轴部件提出了如下要求:(1)主轴回转精度小于0.5微米。(2)主轴能正反转,并需无级调速,范围为100～1500转/分。(3)主轴部件热变形应尽量小。(4)主轴箱轴向移动距离为50毫米,在横向的偏移不大于0.5微米。对于装夹在主轴上的球形零件,主轴的径向与轴向回转精度是影响球的精度的主要
I. Overview In order to process precision spherical parts, we designed a special ball processing machine. The machine tool spindle using hydrostatic bearings. After debugging and specimen test cutting, spindle rotation accuracy, to meet the design requirements. To process precision spherical components, the following requirements are made for the hydrostatic spindle components: (1) The spindle rotation accuracy is less than 0.5 microns. (2) spindle can be positive and negative, and stepless speed regulation, the range of 100 ~ 1500 rev / min. (3) Spindle parts should be as small as possible. (4) Headstock axial displacement of 50 mm, the offset in the horizontal is not more than 0.5 microns. For the spherical part mounted on the spindle, the radial and axial rotation precision of the spindle is the main factor affecting the accuracy of the ball