Wuhan Huazhong Numerical Control Co., Ltd HNC-18iT, Руководство по программированию

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9. Functions to Simplify Programming
92
9.1.3
9.1.3 9.1.3
9.1.3 Thread
Thread Thread
Thread Cutting
Cutting Cutting
Cutting Cycle
Cycle Cycle
Cycle (G82)
(G82) (G82)
(G82)
� � � �
Cylindrical Cylindrical Cylindrical Cylindrical Thread Thread Thread Thread Cutting Cutting Cutting Cutting Cycle Cycle Cycle Cycle
Programming Programming Programming Programming
G82 X(U)_ Z(W)_ R_ E_ C_ P_ F(J)_
Explanation
Explanation Explanation
Explanation of
of of
of the
the the
the parameters
parameters parameters
parameters
X, Z Coordinate values of end point (point C) in absolute command
U, W Coordinate values of end point (point C) with reference to the initial point (point A)
in incremental command
R, E Coordinate value of retraction amount with reference to the end point (point C) in
incremental command.
C The number of thread head. It is single thread when C is 0 or 1.
P Start point offset. It is used for multiple threads.
F Thread lead per revolution
J Thread lead in inch measurement
x/2
+X
+Z
z
w
u/2
3R
1R
2F
L
4R A
B
C
D
r
e
Figure 9.9 Cylindrical Thread Cutting Cycle (G82)
F F F Function unction unction unction
This command can implement the cylindrical thread cutting. The machining path is
A→B→C→D→A. Moreover, this command is same as G32 (Thread cutting with constant
lead).