Setting the machine parameters, 19 .1 f undamentals – HEIDENHAIN iTNC 530 (340 49x-05) Cycle programming User Manual

Page 479

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HEIDENHAIN iTNC 530

479

1

9

.1 F

undamentals

Differences between Cycles 31 to 33 and
Cycles 481 to 483

The features and the operating sequences are absolutely identical.
There are only two differences between Cycles 31 to 33 and Cycles
481 to 483:

„

Cycles 481 to 483 are also available in controls for ISO programming
under G481 to G483.

„

Instead of a selectable parameter for the status of the
measurement, the new cycles use the fixed parameter Q199.

Setting the machine parameters

When measuring a rotating tool, the TNC automatically calculates the
spindle speed and feed rate for probing.

The spindle speed is calculated as follows:

n = MP6570 / (r • 0.0063) where

The feed rate for probing is calculated from:

v = meas. tolerance • n where

The TNC uses the feed rate for probing defined in MP6520
when measuring a tool at standstill.

n

Spindle speed [rpm]

MP6570

Maximum permissible cutting speed in m/min

r

Active tool radius in mm

v

Feed rate for probing in mm/min

Measuring
tolerance

Measuring tolerance [mm], depending on MP6507

n

Speed in rpm

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