Abstract
The development of computer technology has enabled it to be introduced to machine tools. The widespread use of CNC machine tools has resulted in a rapid development of the processing industry. So far, obtaining the profile of the curve has required the use of a complicated machine tool kinematic design, or it has been impossible to implement it otherwise than by copying. The numerical control of machine tools is based on the mathematical description of motion. This provides the capability to form curves of the same shape but with different dimensions using parametric programs. The article describes the practical use of parameters in machining on an FYS milling machine with Mitsubishi control.
Highlights
Programming numerically controlled machine tools involves the notation of all motion trajectories and technological activities in a programming language understandable for the machine tool in a manner that allows the execution of an object of the desired shape, dimensions and surface quality [1,2]
The job of numerical control is to convert numerical data carrying the information of the work program into quantities controlling machine tool operation
Modern CNC machine tools used in the aircraft industry and the
Summary
The assumption in the development of a parametric program for a CNC machine tool is to demonstrate the machine tool's capability and operation principle and the possibility of creating parametric programs. #104=50 (MILLING CUTTER DIAMETER), #105=50 (SHAFT DIAMETER), #120=0 (FI), #107=1 (CONST "a"), #108=1.4 (CONST "b"), #109=0 (CAM INITIAL RADIUS), #110=2 (DELTA FI), #112=30 (DEPTH OF CUT), This variable #110 (DELTA FI) is the angle value, upon which the computation of the polar coordinates follows. #114=#101/2+#104/2.085 #113=#107*EXP[#108*#111] #109=#113+#114 #132=SIN[#106]*#109 #133=COS[#106]*#109 G01 X#133 Y#132 IF[#106 LT 180] GOTO 300 The completion of the second loop means the execution of the full cam profile at the preliminary depth as defined by variable #102. Only one mill pass along the cam profile will occur at the full milling depth [5-9]
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