Siemens SINUMERIK 828D Turning, Руководство по эксплуатации функций

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K2: Axis Types, Coordinate Systems, Frames
10.5 Frames
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
789
Characteristics and expansions:
Settings 1 and 2 are reached by rotating the coordinate system around the Z axis, starting from any position on
the X and Y axis, until the desired setting is reached. Setting 3 is achieved by executing a rotation whose value is
the exact mean of these two angles. However, this only applies for the case that the old and new Z direction
enclose an angle of less than 90 degrees. With variant 1, both the old and new X axes form an angle of under 90
degrees, with variant 2 the same is true of the Y axis (the relevant axes point in "approximately" the same
direction). If the two Z directions form an angle of more than 90 degrees, however, the conditions of an angle <
90 degrees between the old and new axes can no longer be met simultaneously for both X and Y. In this case,
priority is given to the X direction, i.e. a mean value is taken from the direction for 1 and the negative direction for
2.
If one of the G codes
TOFRAMEX,TOFRAMEY,TOROTX,TOROTY
is programmed in place of
TOFRAME(Z)
or
TOROT(Z)
, the descriptions for adapting the axis directions perpendicular to the main direction are also valid for
the cyclically exchanged axes. The assignments in the table below are then valid:
Example
N100
describes a rotation by 45 degrees in the X­Y plane. It is assumed that the toolholder activated in
N110
rotates the tool by 30 degrees around the X axis, i.e. the tool lies in the Y­Z plane and is rotated by 30 degrees
relative to the Z axis. As a result the Z axis of the frame newly defined in
N120
also points in this direction
(independently of the value in setting data SD42980 $SC_TOFRAME_MODE in
N90
).
In the figure below, the situation for setting data setting:
SD42980 $SC_TOFRAME_MODE=1
is shown:
TOFRAME, TOFRAMEZ
TOROT, TOROTZ
TOFRAMEY
TOROTY
TOFRAMEX
TOROTX
Tool direction
(vertical axis) Z Y X
Secondary axis
(horizontal axis) X Z Y
Secondary axis
(ordinate) Y X Z
...
...
N90 $SC_TOFRAME_MODE=1
N100 ROT Z45
N110 TCARR=1 TCOABS T1 D1
N120 TOROT
...
...