Page 506 - Sensors and Control Systems in Manufacturing
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Communications
FIGURE 9.19 Cartesian coordinate system for NC and a coordinate system applied 459
to different processing machines.
other sentences; it does not have to be repeated. The feed is specified
with code letter F, followed by a code number or address where the
actual feed speed is located. The cutting speed is given with a code
letter S and a code number. The code for the tool is T; the following
code number 01 in the program indicates that a drill should be taken
from magazine 1. The additional function M09 indicates that a lubri-
cant is to be used. M30 defines the program M.
An NC program for a lathe is described in Table 9.4. A part to be
turned is illustrated in Fig. 9.20. It is assumed that the workpiece has
already been rough-machined. Therefore, it is only necessary to write
a finished program.
Path control behavior is programmed in the beginning sentences
with displacement condition G01. The lathe is set in absolute values to
