How to program CNC lathe?

Simple example: To design a simple shaft part, the outline is required to be only circular arc and straight line, including outline drawing.

G99？ M08

M03？ S 1000？ T0 10 1

G00？ X40？ Z2

G7 1？ U2？ R 1？ F0.25？ S 1000？ T0 10 1？ (s and t can be omitted here)

G7 1？ P 10？ Q20？ U 1.0？ W0.2

N 10？ G00？ X0

G0 1？ Z0？ F0. 1

X5

G03？ X 15？ Z-5？ R5？ F0. 1

G0 1？ Z- 13？ F0. 1

X22

X26？ W-2？

W- 1 1

G02？ X30？ Z-4 1？ R47？ F0. 1

G0 1？ W-9？ F0. 1

G02？ X38？ W-4？ R4？ F0. 1

N20？ G0 1？ W- 10？ F0. 1

G00？ X 100？ Z 100

T0202？ S 1200

G00？ X40Z2

G70？ P 10？ Q20

G00？ X 100？ Z 100？

M30

CNC lathe is one of the most widely used CNC machine tools at present. It is mainly used for cutting internal and external cylindrical surfaces, internal and external conical surfaces with arbitrary cone angles, complex revolving internal and external curved surfaces, cylindrical surfaces and tapered threads of shaft parts or disc parts, and can be used for slotting, drilling, reaming and boring. ?

The NC machine tool automatically processes the machined parts according to the pre-programmed processing program. According to the instruction code and program format specified by the NC machine tool, we write the processing route, process parameters, tool path, displacement, cutting parameters and auxiliary functions of the parts into a processing program sheet, and then record the contents of this program sheet on the control medium, and then input it into the NC device of the NC machine tool, thus guiding the machine tool to process parts.