SINUMERIK 810D / 840D SHOPMILLcnc.fme.vutbr.cz/Sinumerik/shop_mill_demo.pdf · SINUMERIK 810D / 840D A. Grözinger: Demo Workpiece SHOPMILL. ... If you call up a tool from the tool

SINUMERIK 810D / 840D

A. Grözinger: Demo Workpiece

SHOPMILL

Demo Workpiece ShopMill

A. Grözinger © Siemens AG 2002, All rights reserved, November 2002 Edition Page 1

ABOUT THE CONTENT................................................................................................................................... 2 PURPOSE OF THIS DOCUMENTATION.................................................................................................................. 2 PLEASE NOTICE ............................................................................................................................................... 2 LEGEND........................................................................................................................................................... 3 DESCRIPTION OF KEYS ..................................................................................................................................... 3

DRAWING......................................................................................................................................................... 4

SETTING UP THE TOOLS ............................................................................................................................... 4

SETTING UP THE TOOLS ............................................................................................................................... 5

PROGRAMMING .............................................................................................................................................. 7 CREATING THE WORKPIECE .............................................................................................................................. 7 DEFINING THE PROGRAM HEADER ..................................................................................................................... 8 ZERO-OFFSET ................................................................................................................................................. 9 DRILLING OPERATIONS ................................................................................................................................... 10

Centering.................................................................................................................................................. 10 Deep-hole drilling ..................................................................................................................................... 11 Tapping .................................................................................................................................................... 12 Assigning a position pattern..................................................................................................................... 13

MILLING OPERATIONS ..................................................................................................................................... 15 Generating a pocket contour.................................................................................................................... 15 Generating an island contour................................................................................................................... 17 Solid machining of a pocket (roughing).................................................................................................... 18 Residual material detection...................................................................................................................... 19 Solid machining of a pocket (finishing bottom) ........................................................................................ 20 Solid machining of a pocket (finishing wall) ............................................................................................. 21

INSERTING G CODE / ISO BLOCK .................................................................................................................... 22 PROGRAM DISPLAY......................................................................................................................................... 22 SIMULATION................................................................................................................................................... 23

MACHINE SET-UP ......................................................................................................................................... 24 CHANGING TOOLS ONTO THE SPINDLE ............................................................................................................. 24 TOOL GAUGING .............................................................................................................................................. 25

Activating the settable ZO, loading the edge probe................................................................................. 25 Probing a workpiece................................................................................................................................. 26 Gauging tool length manually .................................................................................................................. 27 Workpiece face milling ............................................................................................................................. 28

WORKPIECE MACHINING ............................................................................................................................ 29 EXECUTING A PART PROGRAM......................................................................................................................... 29 SIMULTANEOUS RECORDING (MONITORING) ..................................................................................................... 30 BLOCK SEARCH.............................................................................................................................................. 31

WRITING G-CODE / ISO-CODE PROGRAM................................................................................................. 32 CREATING A G-CODE PROGRAM...................................................................................................................... 32 SIMULATION G-CODE PROGRAM...................................................................................................................... 33 EXECUTING A G-CODE PROGRAM.................................................................................................................... 33 BLOCK SEARCH.............................................................................................................................................. 33


Page 2 © Siemens AG 2002, All rights reserved, November 2002 Edition A. Grözinger

About the content

Purpose of this documentation

This documentation describes the creation of a sample workpiece with ShopMill:

Programming

Machine set-up

Program editing

Please notice

This documentation is not a complete user manual for the operation of a machine tool.

Machine specific functions are not described.

The machine should be operated by authorized persons only.



Legend

Prompt for input

Note

Description of keys

Enter key (equivalent to the enter key on an MF2 keyboard)

Toggle key on the machine control panel

(equivalent to the numeral 5 on the numeric keypad of the MF2 keyboard)

Area key on the operator panel (equivalent to F10 on the MF2 keyboard)

Key for machine background on the operator panel

Info key on the operator panel (equivalent to F12 on the MF2 keyboard)

Softkey on the operator panel

(when horizontal, equivalent to F1 to F9, when vertical, to Shift+F1 to F8)

Hotkey on the machine control panel

NC key on the machine control panel

i

OK

Tools Zero

M



Drawing



Setting up the tools

Or alternatively

Machine control panel:

Position the cursor on the first free magazine location

Enter the name: ROUGH_25MM

Enter the length: 100mm

Enter the diameter (ø): 25mm

Enter number of milling cutter teeth (N): 3

Tools zerooffs..

ToolsZero

sort

New tool

Milling tool

Tool list

Acc. To magazine



Repeat tool input for the following tools:

Cursor on 3D_PROBE

The unloaded tool is now in the tool list (behind the magazine locations). In the tool list you can manage the tools that have not been set up along with their tool data. The number of tools in the tool list is set individually by the machine manufacturer (up to 900 tools).

If you call up a tool from the tool list in the program, a manual change is started automatically.

Cursor on 3D_PROBE

Confirm the location

The tool is now set up again in the magazine.

sort

Acc. to type

Unload

Load



Programming

Creating the workpiece

Or

Machine control panel

Enter the name for the workpiece directory: DEMO_WKS

Cursor on: DEMO_WKS

Enter the name: DEMO_PROGRAM

Program-manager.

ProgramManager

New

New

Shopmill program

OK



Defining the program header

Enter the following values:

The blank dimensions are only relevant for simulation.

If the blank dimensions are preset to 0, it is possible to simulate the tool paths.

The machining direction preset in the program header is effective for standard geometries (milling) and solid machining (contour milling). For path milling (contour milling), the defined direction of the contour and the position of the tool with respect to the contour determine the machining direction !

Accept



Zero-Offset

Select work offset 1 (G54) or

The work offset 1 can be selected through direct input of digit 1.

Transfor- mations

Work offset >

Misc.

() Alternat.



Drilling operations

Centering

Cursor on tool: CENTER


Switch over technology parameters F and V or

Pay attention to the yellow help text in the header

Switch over dynamic broken-line graphics to dynamic auxiliary displays

Center

Tools

To Program

Drill

Accept

i

() Alternat.



Deep-hole drilling


With absolute depth data (e.g.: Z1 40.000 abs), the dynamic broken-line graphics does not draw the contour. Enter depth data incrementally if possible (inc).

Where parameters are contradictory (e.g.: D>Z1), a message appears in the message line

Deep hole drilling

Drill

Accept



Tapping


Cursor on P (thread pitch)

The thread can be entered in mm/rev, inch/rev, turns/inch, or modulus. The input value is converted to the alternatives.

Switch over dynamic auxiliary displays to dynamic broken-line graphics

The chained machining operations are displayed to scale one on top of the other with the associated tool sizes.

☺ Avoidance of incorrect input due to scale display

Tapping

Drill

Thread

() Alternat.

i

Accept



Assigning a position pattern


Switch over dynamic broken-line graphics to dynamic auxiliary displays

Positioning in a circle is intended for drill holes in annular grooves. This requires input of a feed value because rapid traverse movements can only be executed linearly.

Drill

Position

i

Accept




During machining, first center drilling on both drilling patterns is performed, then deep-hole drilling, then thread tapping.

It is possible to chain several position patterns.

Position

Accept



Milling operations

Generating a pocket contour

Enter the name of the contour: DEMO_PROGRAM_POCKET

Enter the following geometry elements:

Starting point

Reference axis X Y

Z 60.0 abs 0.0 abs

Direction of rotation R X Y I J

�2 R

� 15.0

45.0 abs

0.0

X Y

�1 �2 R

0.0


�2 R

� 20.0

0.0 abs 20.0 abs

0.0

X Y

�1 �2 R

0.0

Drehrichtung R X Y I J

�2 R

� 15.0

-45.0 abs 0.0 abs

0.0

Contour milling

New contour

Tangente an Vorg.

Tangente an Vorg.

Tangente an Vorg.

Tangente an Vorg.



X

Y �1 �2 R

0.0


�2 R

� 20.0

0.0 abs -20.0 abs

0.0

X Y

�1 �2 R

0.0


�2 R

� 15.0

60.0 abs

45.0 abs 0.0 abs

0.0

Undefined elements are automatically calculated by the control.

Contours are stored in the program (as from software version 5.3)

Tangente an Vorg.

Tangente an Vorg.

Tangente an Vorg.

Tangente an Vorg.

Accept



Generating an island contour

�

�

�

Enter the name of the contour: DEMO_PROGRAM_ISLAND

�

Enter the following geometry elements:

Starting point

Reference axis X Y

Z 0.0 abs

10.0 abs

X �2 R

20.0 abs

3.0

Y �2 R

-10.0 abs

3.0

X �2 R

-20.0 abs

3.0

Y �2 R

10.0 abs

3.0

X �2 R

0.0 abs

3.0

A pocket can contain up to 12 islands

Contour milling

New contour

Accept

Accept

Accept

Accept

Accept



Solid machining of a pocket (roughing)


As of 50% milling path overlap, the pocket might not be removed completely. This is detected and indicated during simulation ! The milling path overlap must be set to less than 50%.

Machining with a 25mm milling cutter is effected by multiple insertions because the distance between the pocket and the island is too small at some positions. In that way, the island is not destroyed. The residual material is removed in the next step "residual material detection".

The milling paths are only calculated once before stock removal and stored in a temporary subroutine. Only when one of the contours or a parameter in the solid machining cycle has changed, are the paths recalculated.

Contour milling

Solid machining

Accept



Residual material detection


Machining is now only performed at positions where residual material still has to be removed after the preceding solid machining operation.

The function „detection of residual material“ is an option.

Contour milling

Residual material

Accept



Solid machining of a pocket (finishing bottom)


The finishing allowances must also be entered for finishing because the tool must retract at least by the allowance of the roughing step when positioning !

☺ Few inputs due to modal parameter masks

Accept

Contour milling

Solid machining



Solid machining of a pocket (finishing wall)


Finishing on the edge of the pocket/island contour is also possible with the path milling function. Path milling allows more freedom in the approach and retract strategy and the position of the tool with respect to the contour.

The machining direction preset in the program header is effective for standard geometries (milling) and solid machining (contour milling). For path milling (contour milling), the defined direction of the contour and the position of the tool with respect to the contour determine the machining direction !

Contour milling

Solid machining

Accept



Inserting G code / ISO block

Enter NC text: N55 MSG(”HELLO”)

Enter NC text: N60 G4 F2

You can enter an NC block as the G code block. The syntax is not checked !

During simulation, the tool paths of the G code block are displayed graphically.

Program display

Switch over the program step display to dynamic broken-line graphics

The program display is either in plain text with all technological information or in dynamic broken-line graphics.

i



Simulation

Simulation is running

The cutting planes are defined using the cursor keys and the PgUp/PgDn keys.

The 3D view is not refreshed until you switch to another view.

Simulation is based on block search with calculation to end of program. Simulation cannot therefore be performed simultaneously with machining on the machine !

Simulation makes use of the tool operating data

Simulation can also be performed with the function "program test" with dry run feedrate. You can control the velocity of the simulation with the override switch.

If the dimensions of the blank are set to 0, simulation is executed as a broken-line graphic in the top view.

Simulation

Details



Machine set-up

Changing tools onto the spindle

Cursor on tool: ROUGH_10MM


Tools

In manual

M

T,S,M....

<< Back



Tool gauging

Activating the settable ZO, loading the edge probe

Cursor on tool: EDGEFINDER


Setting the zero offset: with or

If the zero offset is greater than 1, the value is entered directly.

If the first zero offset was not yet active, the axis positions in the workpiece coordination system (WCS) will now change. No compensatory movement of the machine axes is made !

It is possible to manage up to 99 zero offsets.

All zero offsets with workpiece offset angles

Tools

In manual

M

T,S,M....

<< Back

() Alternat.



Probing a workpiece


Use the direction keys to traverse axes toward the required edge up to the edge probe.

Instead of the edge probe you can use a milling cutter with known tool data. The tool is then moved until the first chip falls.

The axis position of the X axis in the workpiece coordinate system (WCS) now shows the value -82.5mm. That corresponds exactly to the position of the edge probe center (diam. 5mm) with reference to the zero offset calculated (G54).

If a touch trigger 3D probe is used for gauging, "Set zero offset" is not required. The probe is prepositioned roughly using the direction keys of the axes. Gauging is started with "NC start". The necessary measuring cycles are included in ShopMill.

Repeat the measurement for the Y and Z axes. For the Z axis, a value of ZO 3mm abs is entered.

M

Set zero offset

Edge

X

Set zero offset



Gauging tool length manually

Cursor on tool: DRILL_M12


Use the direction keys to move the axes toward the dial gauge until it shows the value 0

The value for Z0 is ascertained by positioning the spindle nose directly on the dial gauge.

The calculated length is now displayed in the value tool length.

The functions "Länge Auto" and "Durchm. Auto" assume that you have a touch trigger probing socket on the machine. The tool is prepositioned roughly. Gauging is started with "NC start". The necessary measuring cycles are included in ShopMill.

Tools

In manual

M

Measure tool

Length manual

Set length



Workpiece face milling

Cursor on tool: MESSERKOPF_63MM


It is also possible to call up "face milling" in the part program as a machining step.

M

Face milling

Tools

In manual

OK



Workpiece machining

Executing a part program

Or


The part program last programmed is opened.

Cursor on the first program step

The control automatically switches to "AUTOMATIC" mode.

If the cursor is not on the first program step, a block search is started automatically !

If you want to start a program that you are not editing, use the program manager.

Programm-Manager.

ProgramManager

P N0 DEMO_PROGRAM

Machine from here



Simultaneous recording (monitoring)

"Simultaneous recording" is now active

In practice it is better to start the program in the program view.

The 3D view is not refreshed until you switch to another view.

Simulation can also be performed with the function "program test" with dry run feedrate. You can control the velocity of the simulation with the override switch.

The function „monitoring“ is an option.

Record

Program view

Top view

M



Block search

Cursor on program step

Cursor on

No. of start drill op.

Block search is running

Wait for message

Control prepares the machine for machining (tool change, if necessary)

It is possible to start a block search directly from the program editor. Simply place the cursor on the program step you require. Click on "Machine from here" to start the block search.

Start search

M

Accept

Accept

6

Block search

N30 001 Hole full cir. .....

N25 Tapping

Block search finished - Initiate NC start



Writing G-code / ISO-code program

Creating a G-code program

Or


Cursor on: DEMO_WKS

Enter the name: G_CODE_PROGRAM

Enter the following program:

ProgramManager

New

G-Code Program

Program-manager.

N0 G54 N10 T=“ROUGH_10MM“ N20 L6 N30 D1 S1000 M3 N40 G0 X-30 Y-30 Z5 N50 Z-5 N60 G41 G1 F2000 N70 X0 Y0 N80 X100 N90 Y100 N100 X0 N110 Y0 N120 G40 G0 Z5 N130 M30



Simulation G-code program

Simulation is running

Executing a G-code program

Cursor on the first NC block

Block search

Cursor NC block

Block search is running

Wait for message

Control prepares the machine for machining (tool change, if necessary)

Simulation

<< back

Top View

N10 G54

Machine from here.

Block search

Start search

N80 X100 .....

Block search finished - Initiate NC start



Published by Siemens AG MotionControl System Business Devision PO Box 3180, D-91050 Erlangen http://www.ad.siemens.de/jobshop

Documents

SINUMERIK 810D / 840D SHOPMILLcnc.fme.vutbr.cz/Sinumerik/shop_mill_demo.pdf · SINUMERIK 810D / 840D A. Grözinger: Demo Workpiece SHOPMILL. ... If you call up a tool from the tool