The Design and Application of NC Macro Programs

Abstract:

This paper describes a method about curves interpolation. Linear interpolation and circular interpolation feature is often used in the NC system, however, the processing of complex curves have not correspondence interpolation instructions, but most of the NC system have function feature to achieve the processing of the complex curves. Here analyze how to establish the parameters equation of the cam profile, and how to compilate the corresponding processing programs with the function feature of NC system. Point out using the numerical control system's function may complete all kind of curve interpolation, that the curve has the definite functional relations. The establishment equation is the key using linear interpolation command G01 to realize curve processing. Using Variable function of the numerical control system to prepare CNC machining macro program, the programming is very convenient.

• Periodical: Applied Mechanics and Materials (Volumes 201-202)
• Pages: 123-126
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.201-202.123
• Online since: October 2012
• Authors: Yu Jing Jia, Guang Zhen Cheng
• Keywords: Cam Machining, Function Feature, Macro Program, NC System

References

[1] Z. Sun: The programming and operation of NC (Mechanical Industry Press, China 1996) (in Chinese).

[2] L.H. Cao: Mechanical theory (Higher Education Press, China 1986) (in Chinese).

[3] F.Z. Cai: Practical machining technology of CNC (Weapon Industry Press, China 1996) (in Chinese).

[4] Y.S. Fan: Electrical Control and PLC applications (China Electric Power Press, China 2006) (in Chinese).

[5] A.L. Wang: The Practical operation technology of modern CNC (National Defense Industry Press, China 20026) (in Chinese).