SINUMERIK 840D sl. Training. Operate - Turning (2016-2020)

Example 1: Taper shaft

6.2 Program management / creating programs

6.2

Program management / creating programs

Operating sequences

After power-up of the control system, you are in the main menu.

Figure 6-4

Main screen

Open the main menu using the MENU SELECT key. You can call the various areas of

ShopTurn from the main menu.

Figure 6-5

Main menu

Select the Program Manager softkey. The Program Manager is opened.

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Example 1: Taper shaft

6.2 Program management / creating programs

In the Program Manager, you can manage process plans and contours (e.g. "New", "Open",

"Copy", ...).

Figure 6-6

Program Manager

The Program Manager displays a list of the existing directories. Use the cursor key to select

the 'Workpieces' directory.

Open the "Workpieces" directory.

Enter the name 'EXAMPLE1' for the workpiece.

Figure 6-7

Creating a workpiece

Confirm your input. The following dialog box is opened:

Figure 6-8

Creating a step sequence program

Select the input format using the ShopTurn and ProgramGUIDE G code softkeys.

The program type can be specified via the ShopTurn softkey.

Specify the name of the process plan, in this case 'TAPER_SHAFT'.

Confirm your input.

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Example 1: Taper shaft

6.2 Program management / creating programs

After confirming, the following interactive screenform is displayed to enter the workpiece

data.

Figure 6-9

Program header - Help display

Enter the workpiece data and general program specifications in the program header.

Enter the following values:

Field

Value

Selection via toggle key

Notes

Unit of measurement

Work offset

Blank

Cylinder

Select the blank shape

(here cylinder) using the

toggle button.

-100 abs

-92 abs

The value ZB indicates

the distance from the

chuck.

Retraction

normal

See below Retraction

XRA

5 inc

The dimensions of the

retraction planes

ZRA

5 inc

(absolute or incremental)

Tool change point

WCS

and the tool change point

120

are entered here.

200

Safety clearance SC

Speed limits S1

3500

Machining direction

Synchronous

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Example 1: Taper shaft

6.2 Program management / creating programs

Accept the entered values. After confirming, the program header is displayed.

Figure 6-10 Program header, example 1 - Work step editor

Now the program has been created as the basis for further machining steps. It has a name

(in the blue bar), a program header (pictogram "P") and a program end (pictogram "END").

The individual machining steps and contours are stored in the program one beneath the

other. The later machining is performed from top to bottom.

You may call the program header again at any time to make changes or check the values.

Retraction

It is possible to switch the retraction plane between normal, extended and all. Depending on

the retraction setting, the associated fields are enabled for the input of the distances.

normal

extended

all

(for simple cylinders)

(for complex workpieces with

internal machining)

internal machining and/or relief

cuts)

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Example 1: Taper shaft

6.3 Calling a tool

Softkeys

Use this softkey to switch to the online graphic of the workpiece (see screenform below).

Figure 6-11 Program header - graphical view

Use this softkey to switch back to the help display.

6.3

Calling a tool

Operating sequences

To call the required tool, proceed as follows:

Use this key to extend the horizontal softkey menu.

Select the Straight line Circle softkey.

Select the Tool softkey.

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Example 1: Taper shaft

6.3 Calling a tool

Open the tool list.

Figure 6-12 Tool list

Use the cursor key to select the ROUGHING_T80 A tool.

Accept the tool into your program. After accepting the tool, enter the following values in the

interactive screenform (if necessary, change the unit using the toggle key):

Field

Value

Selection via toggle key

Notes

Spindle

Select main spindle V1.

Cutting rate

240 m/min

Plane selection

Turning

Figure 6-13 Tool - input

Accept the entered value.

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Example 1: Taper shaft

6.4 Specifying the distance to be traversed

6.4

Specifying the distance to be traversed

Operating sequences

Now enter the distances to be traversed:

Select the Straight line softkey.

Select the "Rapid traverse" softkey.

Enter the following starting point for roughing in the interactive screenform:

Field

Value

Selection via toggle key

Notes

82 abs

0.3 abs

Enter the starting point for the traversing path

"Apply" the set values.

Select the Straight line softkey.

Enter the following values in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-1.6 abs

The tool has a 0.8 radius,

so it must be traversed to

diameter X -1.6.

0.3 mm/rev

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6.4 Specifying the distance to be traversed

Figure 6-14 Specify the traversing path

"Apply" the set values.

Select the Straight line softkey.

Select the "Rapid traverse" softkey. Move the tool away from the end face in rapid traverse.

Enter the following values in the interactive screenform:

Field

Value

Selection via toggle key

Notes

1 abs

Figure 6-15 Enter the traversing path - moving away from the end face

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Example 1: Taper shaft

6.4 Specifying the distance to be traversed

"Apply" the set values.

Select the Straight line softkey.

Select the "Rapid traverse" softkey.

Enter the following values in the interactive screenform:

Field

Value

Selection via toggle key

Notes

82 abs

This entry returns the tool

to the starting point.

Figure 6-16 Enter the traversing path - returning to the starting point

"Apply" the set values.

Select the Straight line softkey.

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Example 1: Taper shaft

6.4 Specifying the distance to be traversed

Create the four further traversing paths according to the following list of work steps.

Figure 6-17 Enter the traversing path - four further traversing paths

Start the simulation.

Figure 6-18 Simulation - side view

You may end simulation by selecting either the Simulation softkey again or any other

softkey.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

6.5

Creating contours with the contour calculator and machining

sequence

Contour calculator

The integrated ShopTurn contour calculator allows you to enter even the most complicated

contours easily.

With the graphical contour calculator,

you can enter the contours faster and

more easily than with conventional

programming - and even without any

mathematical knowledge.

Operating sequences

Proceed as follows to enter the contour:

Select the Contour turning softkey.

Select the New contour softkey. Enter the name 'TAPER_SHAFT_CONTOUR' for the

contour.

Each contour is assigned its own name. This provides for better legibility of the programs.

Figure 6-19 Creating the 'TAPER_SHAFT_CONTOUR' contour

Confirm your input.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

You can accept the starting point for the contour line without making any changes (see

illustration below).

Note

The contour line is in one sense the roughing limit and in another the finishing path.

Figure 6-20 Specifying the starting point

Note

If you deselect the Graphic view softkey, detailed help displays are shown.

Confirm your input.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following values for the vertical straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

30 abs

Transition to next element

Chamfer

Attach the chamfer (FS)

directly to the straight line

1.5

as a transition element.

Figure 6-21 Specifying the vertical straight line contour

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-17 abs

A straight line appears up

to Z-17.

Transition to next element

Chamfer

The thread undercut is

inserted later as an

individual element.

Figure 6-22 Specifying the horizontal straight line contour

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following value for the vertical straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

40 abs

Draw the vertical straight

line up to the

Transition to next element

Radius

dimensioned intersection

2.5

including the rounding to

the next element.

Figure 6-23 Specifying the vertical straight line contour

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

In the interactive screenform, enter the following values for the end point of the inclined

straight line:

Field

Value

Selection via toggle key

Notes

50 abs

-30 abs

Transition to next element

Chamfer

Figure 6-24 Specifying the contour end point of the inclined straight line

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-44 abs

Transition to next element

Radius

2.5

Figure 6-25 Specifying the horizontal straight line contour

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following values for the vertical straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

60 abs

The paths (= main

elements) do not meet

tangentially.

5RXQGLQJ

PDLQ HOHPHQWV

Figure 6-26 Specifying the vertical straight line contour

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-70 abs

The grooves are entered

later as individual

Transition to next element

Radius

elements in exactly the

same way as the thread

undercut.

Figure 6-27 Specifying the horizontal straight line contour

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following value for the vertical straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

66 abs

Transition to next element

Radius

Figure 6-28 Specifying the vertical straight line contour

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-75 abs

Transition to next element

Radius

Figure 6-29 Specifying the horizontal straight line contour

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following value for the vertical straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

80 abs

End point X80 with a

2x45° chamfer

Transition to next element

Chamfer

Figure 6-30 Specifying the vertical straight line contour

Accept the entered values.

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-90 abs

Transition to next element

Chamfer

The contour end point lies

at X80 and Z-90 (2mm in

front of the chuck).

Figure 6-31 Specifying the contour end point

Accept the entered values.

Figure 6-32 Full contour

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Accept the contour into your process plan.

Figure 6-33 Contour in the process plan

To be able to machine the created contour, you must now create the following work steps.

To this end, proceed as follows:

Select the Stock removal softkey.

Open the tool list and select ROUGHING_T80 A.

Accept the tool into your program.

Enter the following values for roughing in the interactive screenform:

Field

Value

Selection via toggle key

Notes

0.3

240 m/min

Machining

longitudinal

external

roughing

2.5

0.5

0.2

0.0

Cylinder

0.0 inc

Relief cuts

Set machining area limits

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Figure 6-34 Roughing the contour

Accept the entered values.

Select the Stock removal softkey.

Open the tool list and select FINISHING_T35 A.

Accept the tool into your program.

Enter the following values for finishing in the interactive screenform:

Field

Value

Selection via toggle key

Notes

0.15

200 m/min

Machining

Finishing

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Example 1: Taper shaft

6.5 Creating contours with the contour calculator and machining sequence

Figure 6-35 Finishing the contour

Accept the entered values.

The two machining steps are linked in the work step editor.

Figure 6-36 Linking of the work steps in the process plan

Select the Simulation softkey.

Select the Side view softkey.

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Example 1: Taper shaft

6.6 Thread undercut

The following simulation shows the manufacturing sequence for you to check before

manufacturing the workpiece.

Figure 6-37 Simulation - side view

6.6

Thread undercut

Operating sequences

Proceed as follows to create a thread undercut:

Figure 6-38 Thread undercut

Select the Turning softkey.

Select the Undercut softkey.

Select the Undercut thread softkey.

Open the tool list and select the finishing tool FINISHING_T35 A .

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Example 1: Taper shaft

6.6 Thread undercut

Accept the tool into your program.

Enter the following values in the interactive screenform:

Field

Value

Selection via toggle key

Notes

0.15

200 m/min

Machining

Roughing/

finishing

Longitudinal

Position

(see illustration above)

-17

1.15 inc

4.5 inc

0.8

1 inc

0.8

0.1

X (field)

Figure 6-39 Thread undercut

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Example 1: Taper shaft

6.6 Thread undercut

Switch between the graphic view and the help display as required.

Figure 6-40 Thread undercut - graphic view

Accept the entered values.

Select the Simulation softkey. Check the thread undercut via the detailed view in the 3D

view, for example.

Select the 3D view softkey.

Select the Details softkey. You can manipulate the display using the Zoom +, Zoom -,

Magnifying glass, etc. softkeys.

Figure 6-41 Detailed view of the simulation in the 3D display

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Example 1: Taper shaft

6.7 Thread

6.7

Thread

Operating sequences

Proceed as follows to create a thread:

Figure 6-42 Thread

Select the Thread softkey.

Open the tool list and select THREADING_T1.5.

Accept the tool into your program.

Enter the following values for the thread in the interactive screenform:

Field

Value

Selection via toggle key

Notes

1.5 mm/rev

800 rpm

Machining

Roughing/finishi

Linear

External thread

The following inputs

define the thread

geometrically.

-16 abs

0.92

αP

0.1

Multiple threads

α0

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Example 1: Taper shaft

6.7 Thread

Figure 6-43 Thread - graphic view

Switch to the help display when necessary.

Figure 6-44 Thread - help display

Accept the entered values.

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Example 1: Taper shaft

6.8 Grooves

Start the simulation.

Figure 6-45 Thread simulation

6.8

Grooves

Operating sequences

Proceed as follows to create the two grooves:

Figure 6-46 Grooves

Select the Groove softkey.

Select the Groove 2 softkey.

Open the tool list and select the PLUNGE_CUTTER_3 A plunge cutter.

Accept the tool into your program.

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Example 1: Taper shaft

6.8 Grooves

Enter the following values for the grooves in the interactive screenform:

Field

Value

Selection via toggle key

Notes

0.1

150 m/min

Machining

Roughing/finishi

Position

(see illustration above)

The following inputs

define the grooves

-65

geometrically.

X (field)

3 inc

α1

α2

FS1

0.5

X (field)

FS4

0.5

X (field)

0.1

X (field)

Figure 6-47 Grooves - graphic view

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Example 1: Taper shaft

6.8 Grooves

Switch to the help display when necessary.

Figure 6-48 Grooves - help display

Accept the entered values.

Figure 6-49 Process plan with grooves

Start the simulation in the side view or in the 2-window view, for example.

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Example 1: Taper shaft

6.8 Grooves

Select the Side view softkey.

Figure 6-50 Simulation - side view

Select the Further views softkey.

Select the 2-window softkey.

Figure 6-51 Simulation - 2-window view

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Example 2: Input shaft

7.1

Overview

Learning objectives

In this section you will learn the following new functions. You will learn how to...

● perform face turning;

● work with the contour calculator (advanced application);

● machine residual material.

Task

Figure 7-1

Workshop drawing - Example 2:

Figure 7-2

Workpiece - Example 2:

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Example 2: Input shaft

7.2 Face turning

Preparation

Perform the following steps without help:

1. Create a new workpiece with the name 'EXAMPLE2'.

2. Create a new step sequence program with the name 'DRIVE_SHAFT' .

3. Specify the blank dimensions (for the procedure, see example 1).

Figure 7-3

Creating a program header

Following creation of the program header, the process plan looks like this.

Figure 7-4

Work step program

7.2

Face turning

Operating sequences

Proceed as follows to face turn the workpiece:

Select the Turning softkey.

Select the Stock removal softkey.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Since face turning should be completed in one cut, switch to finishing during machining.

Select the ROUGHING_T80 A tool and enter the following values.

Figure 7-5

Face turning the workpiece

7.3

Creating the contour, stock removal and residual stock removal

Operating sequences

Proceed as follows to enter the contour:

Select the Contour turning softkey.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Select the New contour softkey. Enter the name 'DRIVE_SHAFT_CONTOUR' for the

contour.

Figure 7-6

Creating the contour

Confirm your input.

You can accept starting point X0/Z0 directly (see illustration below).

Figure 7-7

Accepting the starting point

Confirm your input.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for the vertical straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

16 abs

Transition to next element

Radius

Figure 7-8

Specifying the vertical straight line contour

Accept the entered values.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-16 abs

Transition to next element

Chamfer

Figure 7-9

Specifying the horizontal straight line contour

Accept the entered values.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following value for the vertical straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

24 abs

Transition to next element

Chamfer

Figure 7-10 Specifying the vertical straight line contour

Accept the entered values.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-38 abs

Transition to next element

Chamfer

Figure 7-11 Specifying the horizontal straight line contour

Accept the entered values.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for the sloping straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

20 abs

α2

Transition to next element

Chamfer

The entered angle refers

to the preceding element.

Figure 7-12 Specifying the sloping straight line contour

Accept the entered values.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-53 abs

Transition to next element

Radius

Figure 7-13 Specifying the horizontal straight line contour

Accept the entered values.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for the vertical straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

36 abs

Transition to next element

Radius

0.4

Round the transition to

the next element with

R0.4.

Figure 7-14 Specifying the vertical straight line contour

Accept the entered values.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for the next section in the interactive screenform:

Field

Value

Selection via toggle key

Notes

α1

165.167°

Transition to next element

Radius

Nothing more is known of

0.4

the path than the angle to

the Z axis, 165.167°. In

such cases, simply

continue the construction

with the next element.

Figure 7-15 Specifying the inclined straight line contour

Accept the entered values.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for the next section in the interactive screenform:

Field

Value

Selection via toggle key

Notes

Direction of rotation

Right

The missing points of the

60 abs

previous contour element

are calculated using the

-78 abs

known dimensions of the

Transition to next element

Chamfer

arc.

Since there are several

possibilities, it is

important that the correct

selection is made.

Figure 7-16 Specifying the arc contour

Select the recommended solution in accordance with the below illustration.

Figure 7-17 Confirming the contour selection

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Select the desired construction, then accept.

Since the end point of the arc is not known, simply continue with the construction. You could

also use the All parameters softkey to enter the exit angle here.

Figure 7-18 Accepting the arc contour

Accept the contour section.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

A tangential path follows.

Select the Tangent to prec.elem. softkey.

Field

Value

Selection via toggle key

Notes

80 abs

Transition to next element

Radius

0.4

Figure 7-19 Specifying the vertical straight line contour

Accept the entered values.

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103

Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

-100 abs

Transition to next element

Chamfer

The end point of the

contour is at Z-100.

Figure 7-20 Specifying the horizontal straight line contour

Accept the entered values.

Accept the contour into your process plan.

Figure 7-21 Accepting the contour

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7.3 Creating the contour, stock removal and residual stock removal

Stock removal, residual stock removal and finishing

To be able to machine the created contour, you must now create the following work steps.

To this end, proceed as follows:

Select the Stock removal softkey.

Open the tool list and select the ROUGHING_T80 A tool.

Accept the tool into your program.

Enter the following values for roughing in the interactive screenform:

Field

Value

Selection via toggle key

Notes

0.3

240 rpm

Machining

contour-parallel

The machining of the

external

contour, for example, is

roughing

performed parallel to the

contour here.

2.0

0.2

0.0

Cylinder

0.0 inc

Relief cuts

Set machining area limits

Figure 7-22 Roughing the contour

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Accept the entered values.

Select the Simulation softkey.

Select the Side view softkey.

Figure 7-23 Roughing the contour - side view simulation

Select the Contour turning softkey.

Select the Residual stock removal softkey.

Open the tool list and select the FINISHING_T35 A tool.

Accept the tool into your program.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Enter the following values for residual stock removal in the interactive screenform:

Field

Value

Selection via toggle key

Notes

0.12

240 m/min

Machining

longitudinal

external

roughing

2.0

0.2

0.0

Relief cuts

Yes

To be able to cut all

residual material, you

must switch the input field

to Yes .

0.2

Set machining area limits

Figure 7-24 Cutting contour residual material

Accept the entered values.

Select the Simulation softkey.

Extend the menu.

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Activate the display of traversing paths.

Figure 7-25 Cutting residual material - side view simulation

Select the Contour turning softkey.

Select the Stock removal softkey.

Open the tool list and select the FINISHING_T35 A tool.

Accept the tool into your program.

Enter the following values for finishing in the interactive screenform:

Field

Value

Selection via toggle key

Notes

0.12

280 rpm

Machining

longitudinal

external

finishing

Allowance

Relief cuts

Yes

Set machining area limits

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Example 2: Input shaft

7.3 Creating the contour, stock removal and residual stock removal

Figure 7-26 Finishing the contour

Accept the entered values. After acceptance, the process plan looks like this.

Figure 7-27 Process plan

Start the simulation.

Select the Details softkey. Here you can expand or minimize the view.

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Example 2: Input shaft

7.4 Thread

The Zoom + softkey expands the view.

Figure 7-28 3D view simulation - details

7.4

Thread

Operating sequences

Proceed as follows to create a thread.

Select the Thread softkey.

Open the tool list and select THREADING_T1.5.

Accept the tool into your program.

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Example 2: Input shaft

7.4 Thread

Enter the following values for the thread in the interactive screenform:

Field

Value

Selection via toggle key

Notes

1.5 mm/rev

800 rpm

Machining

Roughing +

finishing

Linear

External thread

-16

-40 abs

0.92

αP

Infeed with

alternating

flanks

0.1

Multiple threads

α0

Figure 7-29 Producing a thread

Accept the entered values.

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Example 3: Guide shaft

8.1

Overview

Learning objectives

In this section you will learn the following new functions. You will learn how to...

● create any blank;

● perform stock removal of the difference material between the blank and the machined

part;

● drill on the front face;

● mill on the front face;

Task

Figure 8-1

Workshop drawing - Example 3:

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Example 3: Guide shaft

8.2 Face turning

Preparation

Perform the following steps without help:

1. Create a new workpiece with the name 'EXAMPLE3'.

2. Create a new step sequence program with the name 'GUIDE_SHAFT'.

3. Fill in the program header (see illustration below).

Note

Although you can do this for any blank, select the Cylinder blank here. ShopTurn ignores

this input and selects an arbitrary blank.

Figure 8-2

Creating a program header

8.2

Face turning

Operating sequences

Proceed as follows to create a new program and face turn the blank to Z0:

Select the Turning softkey.

Select the Stock removal softkey.

Select the ROUGHING_T80 A tool.

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Example 3: Guide shaft

8.2 Face turning

Enter the following values in the interactive screenform:

Field

Value

Selection via toggle key

Notes

0.25

240 m/min

Machining

Finishing

Position

(see illustration

below)

Machining direction

Chart

Since the blank has a

diameter of 60mm, you

must also set dimension

X0 to 60 in this work step.

-1.6 abs

0.0 abs

1.5

0.0

0.2

Figure 8-3

Face turning the workpiece

Accept the entered values.

Start the simulation to check the work step.

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Example 3: Guide shaft

8.3 Creating any blank contour

You can activate the display of traversing paths via the extended menu.

Figure 8-4

Face turning simulation

8.3

Creating any blank contour

Operating sequences

Enter the following blank contour without help:

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Example 3: Guide shaft

8.3 Creating any blank contour

Select the New contour softkey. Enter the name 'GUIDE_SHAFT_BLANK' for the contour.

Figure 8-5

Creating the contour

In the contour calculator, create the blank contour with the starting point at X0/Z0 (see

illustration below).

Figure 8-6

Any blank contour

Note

The contour must be closed.

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Example 3: Guide shaft

8.4 Creating the machined part contour and stock removal

8.4

Creating the machined part contour and stock removal

Operating sequences

Proceed as follows to enter the machined part contour:

Select the Contour turning softkey.

Select the New contour softkey. Enter the name 'GUIDE_SHAFT_CONTOUR' for the

contour.

Figure 8-7

Creating the contour

Confirm your input.

Since the blank was assigned to Z0 in the first work step, you can accept the starting point

X0/Z0 directly (see illustration below).

Figure 8-8

Specifying the contour starting point

Confirm your input.

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Example 3: Guide shaft

8.4 Creating the machined part contour and stock removal

Enter the following values for the vertical straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

48 abs

Transition to next element

Chamfer

Figure 8-9

Specifying the vertical straight line contour

Accept the entered values.

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Example 3: Guide shaft

8.4 Creating the machined part contour and stock removal

Enter the following values for the horizontal straight line in the interactive screenform:

Field

Value

Selection via toggle key

Notes

Transition to next element

Radius

The end point of the

horizontal straight line is

unknown. Enter only the

transition to the next

element with R4. The end

point of the straight line is

calculated automatically

from the subsequent

contour constructions.

Figure 8-10 Specifying the horizontal straight line contour

Accept the entered values.

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Example 3: Guide shaft

8.4 Creating the machined part contour and stock removal

Enter the following values for the next section in the interactive screenform:

Field

Value

Selection via toggle key

Notes

Direction of rotation

Right

60 abs

If several solutions are

80 abs

possible when entering

the contour data (e.g. in

the case of circular arcs

here), you can select

these via the Selection

dialog softkey.

Figure 8-11 Specifying the arc contour

Select the recommended solution in accordance with the below illustration.

Figure 8-12 Selecting an arc contour

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SINUMERIK 840D sl. Training. Operate - Turning (2016-2020) - page 26