Creating A Cycle Program - HEIDENHAIN TNC 640 User Manual

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Creating a cycle program

The holes (depth of 20 mm) shown in the figure at right are to be

drilled with a standard drilling cycle. You have already defined the

workpiece blank.

Call the tool: Enter the tool data. Confirm the

entry in each case with the ENT key, do not

forget the tool axis

Press the L key to open an NC block for a linear

Retract tool: Press the orange axis key Z and

enter the value for the position to be approached,

e.g. 250. Press the ENT key

Confirm Radius comp.: RL/RR/no comp.? by

pressing the ENT key: Do not activate radius

compensation

Confirm Feed rate F=? with the ENT key: Move

at rapid traverse (FMAX)

Miscellaneous function M? Confirm with the

The control stores the entered positioning block.

Call the menu for special functions: Press the

SPEC FCT key

Display the functions for point machining

Select the pattern definition

Select point entry: Enter the coordinates of the 4

points and confirm each with the ENT key. After

entering the fourth point, save the block with the

Call the cycle menu: Press the CYCL DEF key

Display the drilling cycles

Select standard drilling cycle 200

The control starts the dialog for cycle definition.

Enter all parameters requested by the control

step by step and conclude each entry with the

In the screen to the right, the control also

displays a graphic showing the respective cycle

Display the menu for defining the cycle call:

Press the CYCL CALL key

First Steps with the TNC 640 | Programming the first part

HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017