APPLICATION OF A FAST TOOL SERVO FOR DIAMOND TURNING OF NONROTATIONALLY SYMMETRICAL SURFACES

被引:70
作者
DOW, TA
MILLER, MH
FALTER, PJ
机构
[1] Precision Engineering Center, North Carolina State University
[2] Westinghouse Defense and Electronic Systems, Orlando, FL
来源
PRECISION ENGINEERING-JOURNAL OF THE AMERICAN SOCIETY FOR PRECISION ENGINEERING | 1991年 / 13卷 / 04期
关键词
DIAMOND TURNING; PZT ACTUATORS; FAST TOOL SERVO; NONROTATIONALLY SYMMETRICAL SURFACES; REFERENCE SURFACE; SPINDLE GROWTH CORRECTION; REAL-TIME CONTROL;
D O I
10.1016/0141-6359(91)90001-Y
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The fabrication of nonrotationally symmetric surfaces by diamond turning requires tool actuation at a bandwidth significantly higher than the rotational frequency of the surfaces. This requirement cannot be met by standard slide drives due to their large mass and consequent low natural frequency. This article describes the development of a laboratory-scale diamond-turning machine with piezoelectric-driven fast tool servo. The capability of this apparatus will be demonstrated for high-speed features such as sine wave, square wave, and ramp-shaped surfaces. Also described is the implementation of this fast tool servo on a commercial diamond-turning machine. Several nonrotationally symmetric surfaces have been machined, and their images are included.
引用
收藏
页码:243 / 250
页数:8
相关论文
共 9 条
  • [1] Langenbeck, Precision diamond machining of metal optics—A review, Optoelektronik, (1984)
  • [2] Saito, Precision machining application and technology An overview and perspective, Proc. SPIE, 433, (1983)
  • [3] Schenz, Patterson, Saito, Direct machining of a non-axisymmetric phase corrector, Proc. SPIE, 966, pp. 43-59, (1988)
  • [4] Douglass, A machining system for turning nonaxisymmetric surfaces, Ph.D. diss., (1983)
  • [5] Gerchman, An exact description of far off-axis conic surfaces for non-rotationally symmetric surface generation, Proceedings of the ASPE Annual Meeting, pp. 104-107, (1989)
  • [6] Thompson, Theoretical tool movement required to diamond turn an off-axis paraboloid on axis, Proc. SPIE, 93, pp. 23-29, (1976)
  • [7] Falter, Dow, A diamond-turning apparatus for fabrication of non-rotationally symmetric surfaces, Proceedings of the International Congress for Ultraprecision Technology, pp. 187-201, (1988)
  • [8] Falter, Diamond turning of nonrotationally symmetric surfaces, Ph.D. diss., (1990)
  • [9] Fornaro, Garrard, Taylor, Architecture and algorithms for computer control of high precision machine tools, Proceedings of the ASPE Annual Meeting, pp. 27-30, (1990)