Linear Axes, Rotary Axes And Kinematics; Axes And Programming - Siemens SINUMERIK 828D Manual

Basic information
1.5

1.5.1 Axes and programming

Tool tip motion
Setting the tool at an
angle
Linear and rotary axes
© Siemens AG All rights reserved SINUMERIK, Manual, Mold-Making with 3- to 5-Axis Simultaneous Milling

Linear axes, rotary axes and kinematics

3-axis area
The tool position is approached in space using
linear axes X, Y and Z. This enables the tool
center point to adopt any position.
With 3-axis machining, you program the three
linear axes to achieve the desired machining
operations. The contour is milled line-by-line
by moving the three linear axes.
If the tool also has to be set at an angle, you
will need rotary axes as well.
5(3+2)-axis area
The inclination of the tool (i.e. the tool
orientation) is changed using two axes of
rotation, e.g. B and C.
This is necessary, for example, if the tool
needs to be angled in relation to the
machining surface or if you want to mill a
pocket with inclined walls within the context of
circumferential milling.
Using three linear axes and two rotary axes,
theoretically any point in space can be
approached with any tool orientation. This is
the basis of 5-axis machining.
5-axis simultaneous
To accommodate machining scenarios
involving tools set at an angle or in order to
mill undercuts or geometries located
anywhere in space, the three linear axes X, Y
and Z are required along with two of the rotary
axes A, B or C. It must be possible to control
the axes simultaneously.
1.5
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