Inclined Machining With 3 + 2 Axes - Siemens SINUMERIK 840Di Function Manual

2.5.3

Inclined machining with 3 + 2 axes

Description of function
Inclined machining with 3 + 2 axes describes an extension of the concept of toolholders with
orientation capability and applies this concept to machines with a rotary table, on which the
orientation of tool and table can be changed simultaneously.
The "Inclined machining with 3 + 2 axes" function is used to machine surfaces with any
rotation with reference to the main planes
X/Y (G17), Z/X (G18) and Y/Z (G19).
It is possible to produce any orientation of the tool relative to the workpiece by rotating either
the tool, the workpiece or both the tool and the workpiece.
The software automatically calculates the necessary compensating movements resulting
from the tool lengths, lever arms and the angle of the rotary axis. It is always assumed that
the required orientation is set first and not modified during a machining process such as
pocket milling on an inclined plane.
Furthermore, the following 3 functions are described, which are required for oblique
machining:
• Position programming in the direction of the tool orientation independent of an active
• Definition of a frame rotation by specifying the solid angle
• Definition of the component of rotation in tool direction in the programmed frame while
Demarcation to 5-axis transformation
If the required functionality specifies that the TCP (Tool Center Point) does not vary in the
event of reorientation with reference to the workpiece, even during interpolation, the 5axis
software is required.
For more information about 5-axis transformation, please refer to:
References:
/FB3/ Description of Functions, Special Functions; 3- to 5-Axis Transformation (F2).
Tool Compensation (W1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
frame
maintaining the remaining frame components
Detailed Description
2.5 Toolholder with orientation capability
2-95