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首页> 外文会议>International Conference on Precision Engineering and Micro/Nano Technology in Asia vol.2; 20051112-14; Shenzhen(CN) >A New Machining Method of Large Axisymmetric Optic Aspheric Surface
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A New Machining Method of Large Axisymmetric Optic Aspheric Surface

机译：大型轴对称光学非球面加工新方法

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摘要

A new form generation method for large axisymmetric aspheric surface is introduced. Linear motion guides are employed in the feed systems most of diamond turning machines. For rotary axes can be made less expensive, easier and more compact than a linear guide at the same precision level, a rotary arm that carries a diamond tool combined with a fast tool servo are used to replace the straight lines. The closest fit sphere of the aspheric surface can be determined by the angle between the rotating axes of the cutter arm and the workpiece, and ultra-precision large aspheric surfaces can be turned with assistance of the fast tool servo. Geometric models of cutting tool path, the motion of fast tool servo and the corresponding calculations are presented. The machining approach is verified to be simple and reliable by computer simulation, so the production efficiency can be improved and the equipment input can be reduced.
机译：介绍了一种新的大轴对称非球面形状生成方法。直线运动导轨用于大多数金刚石车床的进给系统中。与同等精度水平的直线导轨相比，旋转轴的制造成本更低，更容易且更紧凑，因此可以使用带有金刚石刀具和快速刀具伺服机构的旋转臂来代替直线。非球面的最接近配合球面可以通过刀臂的旋转轴和工件之间的角度确定，并且超精密大的非球面可以借助快速刀具伺服系统进行旋转。给出了切削刀具轨迹的几何模型，快速伺服伺服的运动以及相应的计算。通过计算机仿真验证了该加工方法简单可靠，可以提高生产效率，减少设备投入。

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