Siemens SINUMERIK 828D Programming Manual page 436

Tool offsets
7.8 Tool holder kinematics
Extensions of the system variables for orientable toolholders
Fine
offset
l Offset vector
1
l Offset vector
2
l Offset vector
3
l Offset vector
4
v rotary axis
1
v rotary axis
2
Note
Explanations of parameters
"m" specifies the number of the toolholder to be programmed.
$TC_CARR47
alarm if read or write access is attempted.
The start/endpoints of the distance vectors on the axes can be freely selected. The rotation
angles
way, the kinematics of a toolholder can be programmed for any number of possibilities.
Toolholders with only one or no rotary axis at all can be described by setting the direction
vectors of one or both rotary axes to zero.
With a toolholder without rotary axis the distance vectors act as additional tool compensa-
tions whose components cannot be affected by a change of machining plane (
Parameter extensions
Parameters of the rotary axes
The system variables have been extended by the entries $TC_CARR24[m] to
$TC_CARR33[m] and described as follows:
Offset of
rotary axes v
The angle
offset/angle
increment of the
rotary axes v
The minimum and
maximum position of
the rotary axes v
Parameters for the user
$TC_CARR34 to $TC_CARR40 contain parameters that are freely available to users and up
to SW 6.4 were as standard, not further evaluated within the NCK or had no significance.
436
Parameters that can be added to the values
in the basic parameters.
$TC_CARR41[m]
$TC_CARR44[m]
$TC_CARR55[m]
$TC_CARR58[m]
$TC_CARR64[m]
$TC_CARR65[m]
to and
$TC_CARR54 $TC_CARR61
, about the two axes are defined in the initial state of the toolholder by 0°. In this
α α
1 2
Changing the position of the rotary axis v
, v oriented toolholder.
1 2
The offset or the angle increment of the Hirth tooth system of the rotary axes
v and v . Programmed or calculated angle is rounded up to the next value
1 2
that results from phi = s + n * d when n is an integer.
, v
1 2
The minimum and maximum position of the rotary axis limit angle (software
limit) of the rotary axes v1 and v2.
, v
1 2
$TC_CARR42[m]
$TC_CARR45[m]
$TC_CARR56[m]
$TC_CARR59[m]
to are not defined and produce an
$TC_CARR63
or v
1 2
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
$TC_CARR43[m]
$TC_CARR46[m]
$TC_CARR57[m]
$TC_CARR60[m]
to
G17 G19
for the initial setting of the
Job planning
).