FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

APPENDIX
B–62754EN/01
D. NOMOGRAPHS
749
The tool path shown in Fig. D.3 (b) is analyzed based on the following
conditions:
Feedrate is constant at both blocks before and after cornering.
The controller has a buffer register. (The error differs with the reading
speed of the tape reader, number of characters of the next block, etc.)
θ
V
V
X1
V
Y1
φ
1
V
Y2
V
X2
φ
2
V
Z
X
0
Fig. D.3(b) Example of tool path
V
X1
+ V cos
1
V
Y1
+ V sin
1
V
X2
+ V cos
2
V
Y2
+ V sin
2
V : Feedrate at both blocks before and after cornering
V
X1
: X–axis component of feedrate of preceding block
V
Y1
: Y–axis component of feedrate of preceding block
V
X2
: X–axis component of feedrate of following block
V
Y2
: Y–axis component of feedrate of following block
θ : Corner angle
φ
1
: Angle formed by specified path direction of preceding block
and X–axis
φ
2
: Angle formed by specified path direction of following block
and X–axis
Analysis
D Description of conditions
and symbols

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