Generating Program Blocks - Siemens SINUMERIK 840D Operating Manual

Creating a ShopMill program

7.6 Generating program blocks

Parameter
Machining direction
Retraction position
pattern
7.6 Generating program blocks
After a new program is created and the program header is filled out, define the individual
machining steps in program blocks that are necessary to produce the workpiece.
You can only generate program blocks between the program header and the end of the
program.
Procedure
Selecting a technological function
...
Selecting a tool from the tool list
228
Description
When machining a pocket, a longitudinal slot or a spigot, ShopMill takes the
machining direction (climbing or conventional) and the spindle direction in the tool
list into account. The pocket is then machined in a clockwise or counterclockwise
direction.
During path milling, the programmed contour direction determines the machining
direction.
optimized

When machining with optimized retraction, the tool travels across the workpiece
at the machining feedrate depending on the contour and with a safety clearance
(SC).
to RP

When retracting to RP, the tool is retracted to the retraction plane when the
machining step is complete and infeeds at the new position. Collisions with
workpiece obstacles are thus prevented when the tool is retracted and fed in,
e.g. when holes in pockets or grooves are machined at different levels and
positions.
1. Position the cursor in the work plan on the line behind which a new
program block is to be inserted.
2. Using the softkeys, select the desired function. The associated
parameter screen is displayed.
3. First, program the tool, offset value, feedrate and spindle speed (T, D,
F, S, V) and then enter the values for the other parameters.
4. Press the "Select tools" softkey if you wish to select the tool for
parameter "T".
The "Tool selection" window is opened.
5. Position the cursor on the tool that you wish to use for machining and
press the "To program" softkey.
The selected tool is accepted into the parameter screen form.
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
Unit
Milling