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在工量具制造中,经常碰到一些尺寸精度及表面光洁度要求较高的工件,例如研孔用塞规、渐开线基圆盘等,其尺寸精度制造公差为2～4μ,形状公差≤1μ,表面光洁度要求在 12以上。在没有超精磨削外圆磨床的情况下,我们在M114W普通外圆磨床上经机床调整、砂轮精细修整和采用定向一次磨削等新工艺措施后实现了超精磨削。通过近一年来的实践,目前表面光洁度可稳定在 12,尺寸精度误差在φ32以下,可控制在2μ以内,
In the manufacture of tools, often encounter some of the higher dimensional accuracy and surface finish of the workpiece, such as the hole with Cypriot gauges, involute base disc, the dimensional accuracy of manufacturing tolerance of 2 ~ 4μ, the shape tolerance ≤ 1μ , Surface finish requirements above 12. In the absence of ultra-precision grinding cylindrical grinding machine, we M114W ordinary cylindrical grinder on the machine to adjust, fine grinding wheel and the use of a directional grinding and other new technology measures to achieve the ultra-precision grinding. After nearly a year of practice, the current surface finish can be stabilized at 12, the dimensional accuracy of the error is less than φ32, can be controlled within 2μ,