面向刀具序列的模具型腔高效加工策略

摘要/Abstract

摘要： 为了实现模具型腔的高效加工，提出了一种面向刀具序列的模具型腔高效加工策略。在该策略中，刀具选用圆弧角铣刀和球头刀。按照优先选用圆弧角铣刀和大直径刀具的原则，根据建立的最大可行刀具数字化加工几何模型，确定了刀具序列中每把刀所对应的加工区域和实际加工中每把刀只切除所对应的加工区域。应用该策略可以避免加工特征的识别，同时克服了高速加工刀具刚性差的缺点。验证了加工策略，证明该加工策略对模具型腔的高效加工具有较高的实用价值。

关键词: 模具型腔, 数控加工, 加工策略, 高速加工

Abstract: To realize highly effective machining for die cavity, a relevant superior strategy oriented to tool sequence was proposed in which an ordered series of toroidal cutters and ball cutters sorted by diameter size were optimally selected. Based on the established machining geometry model grounded on the largest access tool, individual cutting areas pertinent to each cutter were consequently calculated, and each cutter only dealt with its corresponding area in practice. Using this proposed strategy, the machining feature recognition during machining process could be avoided and the poor rigidity of cutter used in high speed machining could also be overcome. Combining with an illustrative example, the advanced machining strategy further proved to be effective for highly effective machining of die cavity.

Key words: die cavity, numerical control machining, machining strategy, high speed machining

中图分类号:

TP391.7

蔡玉俊,,王敏杰,刘志涛,毛泽平. 面向刀具序列的模具型腔高效加工策略[J]. .

CAI Yu-jun, , WANG Min-jie，LIU Zhi-tao，MAO Ze-ping. High performance strategy for die cavity machining oriented to tool sequence[J]. .

参考文献

［1］ SUN G, SEQUIN C, WRIGHT P. Operation decomposition for freeform surface features in process planning［J］. Computer-Aided Design, 2001, 33(9): 621-636.

[2] CHOI B, BARASH M. STOP P. An approach to CAD/CAM integration［J］. Computer-Aided Design, 1985, 17(4): 162-168.

[3] CHOI B, KO K. C-space based CAPP algorithm for freeform die-cavity machining［J］. Computer-Aided Design, 2003, 35 (2): 179-189.

[4] ALAM M, LEE K, RAHMAN R. Automated process planning for the manufacture of sliders［J］. Computers in Industry, 2000, 43(3): 249-262.

[5] CHOI B, KIM D, ROBERT B. C-space approach to tool-path generation for die and mould machining［J］. Computer-Aided Design, 1997, 29(9): 657-669.

[6] DSOUZA R, SEQUIN C, WRIGHT P. Automated tool sequence selection for 3-axis machining of free-form pockets［J］. Computer-Aided Design, 2004, 36(7): 595-605.
[7] WU Meiping, ZHAI Jianjun, LIAO Wenhe. Research on NC machining parameter optimization ［J］. China Mechanical Engineering, 2004, 15(3): 235-237(in Chinese). ［武美萍，翟建军，廖文和. 数控加工切削参数优化研究［J］. 中国机械工程, 2004, 15(3): 235-237.］

[8] HAN Yongjun. PowerMill vs high-speed machining technology for mould & die［J］. Manufacturing Technology & Machine Tool,2003,(12):68-70(in Chinese). ［韩永军. PowerMill与模具高速加工技术［J］. 制造技术与机床，2003,(12): 68-70.］

[9] CHEN Shan, YAN Guangrong, CHEN Yanqiu. The intelligent machining based on stock-remaining model［J］. Computer Aided Engineering, 2000, (3): 25-32(in Chinese). ［陈杉, 闫光荣,陈言秋. 基于留量模型的智能加工［J］. 计算机辅助工程, 2000, (3): 25-32.］

[10] FLUTTER A, TODD J. A machining strategy for toolmaking［J］. Computer-Aided Design, 2001, 33(13): 1009-1022.

[1]	王勇,张立强,郭景浩. 基于跳度约束的重叠拐角高速加工平滑算法[J]. 计算机集成制造系统, 2020, 26(第3): 775-783.
[2]	吴继春,王笑江,周会成,方海国. 双转台五轴数控机床的非线性误差补偿[J]. 计算机集成制造系统, 2020, 26(5期): 1185-1190.
[3]	彭先龙,韩飞燕,乔心州,王星,寇发荣. 斜齿面齿轮传动齿面主动修形与边缘接触分析[J]. 计算机集成制造系统, 2020, 26(11): 3040-3048.
[4]	肖建新,张辉,李炳燃,李国林. 基于改进圆弧转接的直线段连续过渡算法[J]. 计算机集成制造系统, 2019, 25(第9): 2248-2255.
[5]	刘建康,郝尚华,王树华,富宏亚. 数据驱动的数控加工生产线实时监控与优化控制技术框架[J]. 计算机集成制造系统, 2019, 25(第8): 1875-1884.
[6]	李志明,田梦,王子璇,王晓妍,申利民. 超短脉冲激光器加工工艺参数自适应及其生效技术[J]. 计算机集成制造系统, 2019, 25(第8): 1927-1935.
[7]	徐彦伟,刘明明,陈立海,徐爱军,陈孟会,颉潭成. 中凸变椭圆活塞等体积切除率加工模型及仿真[J]. 计算机集成制造系统, 2019, 25(第10): 2623-2632.
[8]	杜金锋,张立强,高甜. 基于跳度约束的连续短线段高速加工运动学平滑算法[J]. 计算机集成制造系统, 2018, 24(第9): 2246-2253.
[9]	柴青,仇晓黎,幸研. 基于螺旋升角的零背隙弧面凸轮非等径加工方法及误差研究[J]. 计算机集成制造系统, 2017, 23(第9期): 1869-1874.
[10]	魏涛,张丹,左敦稳,徐锋,夏三星. 面向薄壁多腔类结构件加工特征识别方法[J]. 计算机集成制造系统, 2017, 23(第12): 2683-2691.
[11]	郑祖杰,周敏,郑国磊,朱俊标. 飞机结构件平顶筋顶面骨架分区计算方法[J]. 计算机集成制造系统, 2017, 23(第11): 2407-2413.
[12]	胡泊,富宏亚,韩德东. 基于STEP-NC的数控加工集成化在线检测与监测实现方法[J]. 计算机集成制造系统, 2016, 22(第8期): 1929-1936.
[13]	韩中,汪友明,唐浩漾,孙世新. 基于哈图算法的成型数控加工中心制造过程优化[J]. 计算机集成制造系统, 2016, 22(第6期): 1465-1474.
[14]	王琪瑞,冯毅雄,张子贤,程锦,谭建荣. 基于改进型Butterfly细分的三角网格自由曲面环形刀具轨迹规划[J]. 计算机集成制造系统, 2016, 22(第11期): 2513-2521.
[15]	周青阳,车通,刘日良. 基于STEP的异型螺杆数控加工技术[J]. 计算机集成制造系统, 2015, 21(第5期): 1222-1228.