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The design and implementation of rapid micro-feed mechanism in varying ellipse piston machining

Abstract

非圆回转类零件在工业中有着广泛的应用,其形状日趋复杂化,同时对其加工精度的要求也日益提高,相应的精密高效加工技术逐渐成为当今加工领域的研究热点。活塞是非圆零件的典型代表,是发动机的心脏,承受交变的机械负荷和热负荷,是发动机中工作条件最恶劣的关键零部件之一。在切削加工方面,活塞的加工具有很强的工艺特点。目前活塞型面通常被设计成具有中凸变椭圆特征的复杂三维立体曲面,而其数控车削加工的关键在于硬件上配置一套高频响、大行程、高精度的快速刀具进给机构(FastToolServo,简称FTS),软件上拥有相应的高效伺服控制算法。 本文针对目前变椭圆活塞零件加工的现状,提出了一种新型的变椭圆活塞加工快速微...Non-circular rotational parts have a wide application in industry, its shape is gradually complicated, and the demand of processing precision is gradually increased too. The corresponding of sophisticated and efficient processing technology has become the processing area of research organizations nowadays. Piston is the typical of the non-circular rotational parts. It's the heart of the engine, be...学位:工学硕士院系专业:物理与机电工程学院机电工程系_机械制造及其自动化学号:1992008115291

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