Macro Plogram In NC System Of Complex Parts Processing Implementation

In the world, many countries are using numerical control lathe machining parts.NC machine tool is completely by program control, programming method at the presentstage of computer automatic programming, ordinary instruction manual programmingand macro programming. Due to the requirement of programming manual programminghigh, requiring programmers to master NC massive related knowledge, so manyprogrammers have abandoned the manual programming method. In the use of computerautomatic programming programming is easy, the programmer is not high, as long asthe operating software with a small amount of NC professional knowledge can be usedat the present stage, computer automatic programming has become a trend.Preparation method of macro program in NC machining has few programmers touse, because the macro program requires programmers to master NC professionalknowledge is very comprehensive, and have practical experience in processing. Theauthor is a professional teacher occupation school at ordinary times, NC, NC practiceteaching and skills contest counseling deeply felt the macro program in NC machiningis important. In this paper, the author also often to the NC training of senior workers onthe staff of enterprises, many enterprises staff by senior content of macro program partof the study, the actual production and processing of content to the macro program,increase the machining precision and efficiency of the parts, and increase productionefficiency. In this paper, the macro program for complex parts programming andimplementation of case analysis, proved the macro program has irreplaceable functionin CNC machining. The main contents are as follows:1.Depth analysis of the development status quo of domestic macro program.2..the macro procedure and common procedure, software programming ofCAD/CAM for comparison, analysis the necessity of its existence.3. in NC lathe machining, the stepped shaft, a pin shaft, spherical, ellipse, parabola,hyperbola, ellipse, trapezoidal screw thread, thread of circular arc surface is complexmacro program parts, find the shape processing rules, establishing macro program.4. in the CNC milling machine, the elliptic projection, rectangular cavity, orifice,inner sphere surface inversion fillet, round, elliptic, elliptic cavity surface sphericalouter elliptical spherical surface finishing, shaft groove milling, of rectangular convex platform inclined complex macro program parts, find the shape processing rules,preparation implementation of macro program.5in machining center, the uniformly distributed along the circumference, KongQun Kong Qun, are uniformly distributed along a straight line is evenly distributedalong the circumference of the group of Kong Qun, along the circumference (rotation)are groups of Kong Qun cloth, parallel arrays of Kong Qun complex macro programparts, find the shape processing rules, compile implement macro program.6. through the study of the ashtray parts, analyzed the processing, andprogramming, extensive use of macro program in NC machining parts in the program,proved that the macro program has an irreplaceable role in machining complex parts.Through the study of this paper, which engaged in the numerical controlprocessing personnel are aware of the importance of macro history.