Program Header Setting, "Clamping - Siemens SINUMERIK 840D sl Operating Manual

In addition to surface clampings, you also have the option of using 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 of the 1st clamping must have been run in (trial run)
● No markers/repetitions, i.e. no branches in the program
● No inch/metric switchover
● No work offsets (except ShopMill program header)
● 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 (with
multiple clamping for different programs)
● 3500 operating steps max. per clamping
● Max. 49 clampings
Note
You can bypass the markers or repetitions, which must not be included in programs for
multiple clampings, by using subprograms.
14.20.2

Program header setting, "Clamping"

During the generation of a multiple clamping program, data from the program header of a
source program are transferred to a settings step of the multiple clamping program after every
clamping change. The setting of the clamping in the program header is also part of this data.
The clampings in the program header designate the name of the rotary axis in which the blank
is clamped.
Milling
Operating Manual, 05/2017, A5E40868956
Machine manufacturer
Please observe the information provided by the machine manufacturer.
Managing programs
14.20 Multiple clamping
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