Multiple Clamping - Siemens SINUMERIK 840D Operation/Programming Manual

6
File Management
6.3 Program management with PCU 50

6.3.3 Multiple clamping

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The "Multiple clamping" function provides optimized tool change 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.
Please refer to the machine manufacturer's instructions.
You can machine not only identical but also different workpieces with
this function.
The "Multiple clamping for different programs" function is a software
option.
ShopMill automatically generates a single program out of several
programs. The tool sequence within a program remains unchanged.
Cycles and subroutines are not opened, position patterns are
processed as closed units.
The individual programs must meet the following requirements:
•
Only sequential control 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 work offsets
•
No coordinate transformation (translation, scaling, etc.)
•
Contours must have unique names, i.e. the same contour name
must not be called in several different programs.
•
The "Starting point" parameter must not be set to "manual" in the
stock removal cycle (contour milling).
•
No modal settings, i.e. settings that are effective for all
subsequent program blocks (only with multiple clamping for
different programs)
•
Max. of 50 contours per clamping
•
Max. of 99 clampings
SINUMERIK 840D/840Di/810D Operation/Programming ShopMill (BAS) – 10.04 Edition
6
10.04
 Siemens AG, 2004. All rights reserved