CAJ | 학술논문

文章针对数控车削中高精度非圆二次曲线零件轮廓复杂，编程困难(往往采用参数编程)，且加工要求和精度高。而参数变量的选择和赋值往往由编程人员直接凭经验选取，加工要求和精度很难保证。因此在分析对比二次曲线拟合方法后选择最优的拟合方法，同时根据加工的技术要求和精度，合理选择参数，并通过数学推导计算出最佳的参数赋值。以具体实例，完成非圆二次曲线零件的参数编程。通过验证，该方法极大的提高了加工精度，节省了加工时间。在实际生产中有一定的推广应用价值。
문장침대수공차삭중고정도비원이차곡선령건륜곽복잡，편정곤난(왕왕채용삼수편정)，차가공요구화정도고。이삼수변량적선택화부치왕왕유편정인원직접빙경험선취，가공요구화정도흔난보증。인차재분석대비이차곡선의합방법후선택최우적의합방법，동시근거가공적기술요구화정도，합리선택삼수，병통과수학추도계산출최가적삼수부치。이구체실례，완성비원이차곡선령건적삼수편정。통과험증，해방법겁대적제고료가공정도，절성료가공시간。재실제생산중유일정적추엄응용개치。
In this paper, the numerical control turning conic parts in complex contour, programming difficul-ty, often using parameter programming. Variables and parameters selection and assignment is often directly by the programmers with experience selection, processing requirements and the precision is difficult to guar-antee. Therefore quadratic curve fitting based on the analysis of contrast methods to choose the optimal fit-ting method, according to the requirements of the processing technology and precision at the same time, choose the parameter, and through the mathematic model to calculate the optimum parameters of the assign-ment. With specific examples, to complete the parameters of the conic parts programming. Through the ver-ification, the method greatly improves the machining accuracy, but also save the processing time. In the ac-tual production has a certain application value.