Characteristics Of Tangential Follow-Up Control - Siemens SINUMERIK 840D sl Function Manual

T3: Tangential control - 840D sl only

11.2 Characteristics of tangential follow-up control

Applications
The tangential control function can be used for example for the following applications:
● Tangential positioning of a rotatable tool for nibbling operations.
● Follow-up control of tool alignment for a bandsaw.
● Positioning a dressing tool on a grinding wheel.
● Positioning of a gear shaping cutter in glass or paper processing applications.
● Tangential feed of a wire for 5-axis welding.
11.2 Characteristics of tangential follow-up control
Task specification
Follow-up control for the rotary axis must be implemented so that the axis is always positioned
at a specified angle on the programmed path of the two leading axes.
Figure 11-1
In the diagram, X and Y are the leading axes in which the path is programmed; C is the following
axis whose position is determined by the control as a function of the leading axis values and
of the desired offset angle between tangent and alignment in C.
The tangential control will function only if the leading axes are used as path axes. A leading
axis which is programmed as a positioning axis (POS or POSA) does not specify values required
for the follow-up control function.
506
Tangential control, offset angle of zero degrees to path tangent
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions