Multiple Clamping - Siemens SINUMERIK 840D SL Operating Manual

Managing programs

14.17 Multiple clamping

14.17 Multiple clamping
14.17.1 Multiple clamping
The "Multiple clamping" function optimizes tool changes over several workpiece clampings.
This shortens idle times because a tool performs all machining operations in all clampings
before the next tool change is initiated.
You can use not only the surface clampings but also the "multiple clamping" function for
rotating fixture plates. For this, the machine must have an additional rotary axis (e.g. A-axis)
or a dividing unit.
You can machine not only identical but also different workpieces.
ShopMill automatically generates a single program out of several programs. The tool
sequence within a program remains unchanged. Cycles and subprograms are not opened,
position patterns are processed as closed units.
Requirements
The individual programs must meet the following requirements:
● Only sequence programs (not G code programs)
● Programs must be executable
● Program for the 1st clamping must have been trial run
● No markers/repetitions, i.e. no branches in the program
● No inch/metric switchover
● No zero offsets
● No coordinate transformation (translation, scaling, etc.)
● Contours must have unique names, i.e. the same contour name must not be called in
614
Software options
Multiple clamping is only possible with ShopMill programs. You require the
"ShopMill/ShopTurn" option for this.
In order to calculate different programs for multiple clamping, you require the
option "Multiple clamping of different workpieces".
Machine manufacturer
Please refer to the machine manufacturer's specifications.
several different programs.
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
Milling