Aligning The Plane - Siemens SINUMERIK 840D SL Operating Manual

Setting up the machine
2.6 Measuring the workpiece zero
3 spigots
4 spigots
2.6.10

Aligning the plane

You can measure an inclined plane of a workpiece in space and determine rotation angles α
and β. By subsequently performing coordinate rotation, you can align the tool axis
perpendicular to the workpiece plane.
In order to determine the position of the plane in space, three different points are measured
along the tool axis. To vertically align the tool axis, the "Swivel" function or the 5 axis
transformation (TRAORI) must be set-up at the machine.
In order to be able to measure the plane, the surface must be flat.
Requirement
You can insert any tool in the spindle for scratching when measuring the workpiece zero
manually.
An electronic workpiece probe is inserted in the spindle and activated when measuring the
workpiece zero automatically.
Procedure
106
The center point and the diameter of the circle on which the three spigot
center points lie are calculated and displayed. If you selected entry
"Yes" in "Coor. rotation", then angle α is additionally calculated and
displayed.
For "Set ZO", the center point of the circle now corresponds to the
position setpoint. The calculated rotation is stored in the zero offset.
The spigot center points are connected diagonally and the intersection
point of the two connecting lines calculated and displayed. If you
selected entry "Yes" in "Coor. rotation", then angle α is additionally
calculated and displayed.
For "Set ZO", the intersection point now corresponds to the position
setpoint. The calculated rotation is stored in the zero offset.
1. Select the "Machine" operating area and press the <JOG> key.
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
Milling