Fagor 8025 GP, Руководство по эксплуатации

Страница: 245 / 423

8025/8030 CNC PROGRAMMING MANUAL 125
. DIGITIZING OF THE PATTERN
Digitizing consists of the reading of points on a surface with a measurement probe.
Points are read with the combination of the preparatory functions of the CNC:
- Function G75 allows the reading and acceptance of the points by the CNC.
- The G76 function allows these to be stored in the CNC itself, if the contents are less than
32 Kb, or in a computer.
The program obtained in this way allows the reproduction of the points and the generation of
the surface which has been digitized previously in two ways:
- From the CNC itself, if the contents are less than 32 Kb.
- Of from a computer by means of the FAGORDNC application using the option: EXECUTION
OF THE INFINITE PROGRAM.
1-Sampling program
This is a CNC program which guides the probe along the surface to be digitized in a succession
of points which is as extensive and dense as the computer systems available permit.
The probe travels over the surface of the model at defined intervals of space, defined in the
sample program. The coordinates of these points will be read and the different blocks of the
machining program will be generated.
By observing the model to be digitized and depending on its geometry we can choose different
types of sampling:
-Rectangular probing according to the X axis.
-Rectangular probing according to the Y axis.
-Circular probing.
-Diametric probing.
-Profile monitoring probing.
-Combinations of these.
-Etc.
Later, examples of these sampling programs will be seen.