CAJ | 학술논문

“S”形精度检验试件作为一种新的五轴数控机床精度检验试件，目前已得到一定的推广，但根据ISO标准提出的试件通用、简化及工程化要求，仍需进一步完善S试件的构型。研究了基于三次均匀B样条插值简化“S”形检验试件的方法，通过重新调整控制点重构“S”形检验试件，并对简化前后的“S”形检验试件的典型特征，如开闭角、扭曲角、曲率及连续性等进行了对比分析，通过UG软件进行了加工编程，计算和对比了加工新旧“S”形检验试件的理想速度、加速度，证明了新“S”形检验试件的可行性，为“S”形检验试件的标准化推广提供了依据，有助于全面了解“S”形检验试件的几何和加工特性。
“S”형정도검험시건작위일충신적오축수공궤상정도검험시건，목전이득도일정적추엄，단근거ISO표준제출적시건통용、간화급공정화요구，잉수진일보완선S시건적구형。연구료기우삼차균균B양조삽치간화“S”형검험시건적방법，통과중신조정공제점중구“S”형검험시건，병대간화전후적“S”형검험시건적전형특정，여개폐각、뉴곡각、곡솔급련속성등진행료대비분석，통과UG연건진행료가공편정，계산화대비료가공신구“S”형검험시건적이상속도、가속도，증명료신“S”형검험시건적가행성，위“S”형검험시건적표준화추엄제공료의거，유조우전면료해“S”형검험시건적궤하화가공특성。
As a new five-axis CNC machine precision test specimen,"S" shaped test piece has been promo-ted, but according to the requirement of ISO standards, deficiencies still existed. The paper studied the re-construction of S shaped test piece by cubic B-spline interpolation, focused on re-adjusting the control points to approach and reconstruct the S shaped test piece, and made a comparative analysis on the typical charac-teristics of S shaped test piece, such as open-close angle, twist angle, curvature and so on, By UG soft-ware, the processing program was made,and the post command was got. Through the post command, the desired speed and acceleration of processing S shaped test piece were calculated and compared, the feasibili-ty of the new S shaped test piece was proved, which helped us know the S shaped test piece comprehensively.