Siemens SINUMERIK 802D, Руководство по программированию и эксплуатации

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Description
1.4 Coordinate systems
Cylindrical grinding
Programming and Operating Manual, 07/2009, 6FC5398-4CP10-2BA0
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1.4 Coordinate systems
As a rule, a coordinate system is formed from three mutually perpendicular coordinate axes.
The positive directions of the coordinate axes are defined using the so-called "3-finger rule"
of the right hand. The coordinate system is related to the workpiece and programming takes
place independently of whether the tool or the workpiece is being traversed. When
programming, it is always assumed that the tool traverses relative to the coordinate system
of the workpiece, which is intended to be stationary.
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Figure 1-2 Determination of the axis directions to one another; coordinate system for programming
Machine coordinate system (MCS)
The orientation of the coordinate system relative to the machine depends on the respective
machine type. It can be rotated in different positions.
The directions of the axes follow the "3-finger rule" of the right hand. Seen from in front of the
machine, the middle finger of the right hand points in the opposite direction to the infeed of
the main spindle.
Figure 1-3 MCS for grinding (cylindrical grinding machine, surface grinding machine)