Example Of A 4-Axis Transformation; Example Of A Universal Milling Head - Siemens SINUMERIK 840D sl Function Manual

1.13.2.2

Example of a 4-axis transformation

Example: For the machine schematically presented in Figure "Schematic 4-axis
Transformation with movable Workpiece" (see Chapter "3- and 4-axis Transformation", Short
Description), the 4-axis transformation can be projected in the following way:
$MC_TRAFO_TYPE_n = 18
$MC_TRAFO_GEOAX_ASSIGN_TAB_n[0] = 1
$MC_TRAFO_GEOAX_ASSIGN_TAB_n[1] = 2
$MC_TRAFO_GEOAX_ASSIGN_TAB_n[2] = 3
$MC_TRAFO_AXES_IN_n[0] = 1
$MC_TRAFO_AXES_IN_n[1] = 2
$MC_TRAFO_AXES_IN_n[2] = 3
$MC_TRAFO_AXES_IN_n[4] = 0
1.13.3

Example of a universal milling head

General information
The following two subsections show the main steps which need to be taken in order to
activate a transformation for the universal milling head.
Machine data
; machine kinematics CA' with tool orientation in zero position in the z direction
$MC_TRAFO_TYPE_1 = 148
$MC_TRAFO_GEOAX_ASSIGN_TAB_1[0]=1
$MC_TRAFO_GEOAX_ASSIGN_TAB_1[1]=2
$MC_TRAFO_GEOAX_ASSIGN_TAB_1[2]=3
; angle of second rotary axis
$MC_TRAFO5_NUTATOR_AX_ANGLE_1 = 45
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
F2: Multi-axis transformations
; x-axis is channel axis 1
; y-axis is channel axis 2
; z-axis is channel axis 3
; there is no second rotary axis
1.13 Examples
129