CAJ | 학술논문

以中凸变椭圆型活塞裙部的车削成型为研究对象,搭建了活塞车削系统实验平台,利用三次样条算法对其裙部初始数据进行密化和平滑处理,计算出关于活塞裙部型面的刀触点轨迹坐标O0(ρ0,θ0,Z0)。在此基础上进行活塞裙部车削轨迹实验,并对其加工误差进行检测,通过实验分析表明,采用变截面螺旋轨迹算法进行活塞加工,其轨迹误差比传统的近似螺旋轨迹算法误差低了1个量级,最大轨迹误差减小至0.86μm,为下一步有效提高中凸变椭圆型活塞裙部型面加工精度奠定了基础。
이중철변타원형활새군부적차삭성형위연구대상,탑건료활새차삭계통실험평태,이용삼차양조산법대기군부초시수거진행밀화화평활처리,계산출관우활새군부형면적도촉점궤적좌표O0(ρ0,θ0,Z0)。재차기출상진행활새군부차삭궤적실험,병대기가공오차진행검측,통과실험분석표명,채용변절면라선궤적산법진행활새가공,기궤적오차비전통적근사라선궤적산법오차저료1개량급,최대궤적오차감소지0.86μm,위하일보유효제고중철변타원형활새군부형면가공정도전정료기출。
In this paper, it build a piston turning experimental platform for turning middle-convex and var-ying ellipse piston skirt, the piston data processing software can dense and smoothing the initial data of pis-ton skirt, then calculate the cutter-contact points coordinates O0 (ρ0 ,θ0 ,Z0 ) of middle-convex and varying el-lipse piston skirt. In this basis, it complete the piston skirt turning trajectory experiments and test its trajectory error , it shown that the trajectory error of Variable Cross-section Helix Turning Trajectory ( VCHTT) algorithm is lower than Approximate Helix Trajectory Method ( AHTM ) , the maximum trajectory error of VCHTT is 0. 86μm , it could improve the profile accuracy of middle-convex and varying ellipse piston skirt type precision greatly .