【摘要】 提出了大型配对面数字化加工的新方法。测量一个表画,用确定性参数曲面的误差曲面来构造实际曲面,通过数字化处理生成其配对面的加工数据,实施配对面的加工,从而保证高的配合质量。本文根据加工椭圆回转型配对面的生产实际需要,对配对面数据生成作了研究,应用鞍点规划方法对理论曲面的位置参数进行了最优化处理。该技术已应用在航天部长征Ⅲ号系列火箭的隔离层加工中。更多还原

【Abstract】 Manufacturing a surface of revolution with measured data from its fit counterpart is applied in order to obtain high fit quality. This paper discusses the method of reconstruct- ing the existing surface from discrete measured data and converting to NC manufacturing data for fit counterpart to be machined. The design surface with definite parameters and normal error are introduced to reconstruct the measured surface. The position of the design surface is optimised in order to minimise the error by use of saddlepoint programming. The processing technology has been applied to NC manufacturing of spheroidicity fit surfaces on vertical NC lathe.更多还原