
A-78709E
Edit
Apprv. Desig.
Sheet
Title
Draw
No.
Date
Design
Descri
tion
Date
FANUC Series 16i –MB, 18i –MB5
Tool Center Point Control For 5-Axis
machining Specifications
Dec.01.2001
02 Mar.22.2002
T.Mochida All revision H.Kouzai
T.Mochida H.Kouzai
03 Dec.27.2002
T.MochidaWorkpiece coordinate system,circular ,Type2 add H.Kouzai
04 Mar.12.2003 M.Tanaka All revision H.kouzai
62
97
05 Jan.26.2004 T.Mochida Correction and addition of 5) E.Genma
5 Restrictions
- Deceleration at a corner
In tool center point control mode, the controlled point may move on a curved line even
if a straight-line command is issued. Some commands may cause the tool center
point to make a sharp turn.
The tool may be decelerated if a low value is set as a allowable speed difference
(parameter No. 8410) at corners or a allowable acceleration (parameter No. 8470).
- Reset
When tool center point control for 5-axis machining mode(G43.4) is reset, the mode is
always canceled (G49).
- Tool radius compensation for 5-axis machining
When exerting tool center point control at the same time with Tool radius
compensation for 5-axis machining, set parameter WKP (No.19696) to 1 as the
workpiece coordinate value.
In that case, when specifying Tool radius compensation for 5-axis machining before
tool center point control, specify the cancellation of Tool radius compensation for
5-axis machining after canceling tool center point control (example 1). When
specifying tool center point control before Tool radius compensation for 5-axis
machining, specify the cancellation of tool center point control after canceling Tool
radius compensation for 5-axis machining (example 2).
Example 1
G41.5 D1
:
G43.4 H1
:
G49
:
G40
Example 2
G43.4 H1
:
G41.5 D1
:
G40
:
G49
When specifying Tool radius compensation for 5-axis machining first, the block for
canceling tool center point control(G49) stops buffering. Therefore, note that, in a
block preceding the G49 block, the compensation vector for Tool radius compensation
for 5-axis machining is directed toward the vertical direction of movement.