CAJ | 학술논문

分析了自由曲面加工误差的产生原因,重点阐述了刀触点轨迹的步长和行距对曲面加工精度的影响,在此基础上提出了一种基于线性逼近误差和残留高度约束的刀触点轨迹规划方法,该方法可以保证曲面加工的精度要求. 最后以一张自由曲面为例,考察其刀触点轨迹的分布和连续性情况,仿真结果验证了该方法的可行性和有效性.
분석료자유곡면가공오차적산생원인,중점천술료도촉점궤적적보장화행거대곡면가공정도적영향,재차기출상제출료일충기우선성핍근오차화잔류고도약속적도촉점궤적규화방법,해방법가이보증곡면가공적정도요구. 최후이일장자유곡면위례,고찰기도촉점궤적적분포화련속성정황,방진결과험증료해방법적가행성화유효성.
The causes of free-form surface machining error had been analyzed, and the influence of the step length and row pitch of cut-ter contact trajectory on the curved surface machining precision was emphasized. On the basis of that, a kind of cutter contact trajectory planning method based on linear approximation error and residual height constraint was put forward, this method can ensure the accura-cy requirement of surface machining. At last a free-form surface was taken for example to verify the distribution and continuity of the cutter contact trajectory, the simulation results show the feasibility and validity of the method.