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Delta values for lengths and radii, Entering tool data into the program, Tool data 5.2 – HEIDENHAIN TNC 320 (34055x-06) User Manual

Page 143

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Tool data

5.2

5

TNC 320 | User's Manual HEIDENHAIN Conversational Programming | 5/2013

143

Delta values for lengths and radii

Delta values are offsets in the length and radius of a tool.

A positive delta value describes a tool oversize (

DL, DR, DR2>0). If

you are programming the machining data with an allowance, enter
the oversize value in the

TOOL CALL block of the part program.

A negative delta value describes a tool undersize (

DL, DR, DR2<0).

An undersize is entered in the tool table for wear.

Delta values are usually entered as numerical values. In a

TOOL

CALL block, you can also assign the values to Q parameters.
Input range: You can enter a delta value with up to ± 99.999 mm.

Delta values from the tool table influence
the graphical representation of the

tool

. The

representation of the

workpiece

remains the same

in the simulation.

Delta values from the

TOOL CALL block change

the represented size of the

workpiece

during the

simulation. The simulated

tool size

remains the

same.

Entering tool data into the program

The number, length and radius of a specific tool is defined in the
TOOL DEF block of the part program.

Select the tool definition: Press the TOOL DEF key

Tool number: Each tool is uniquely identified by its
tool number

Tool length: Compensation value for the tool
length

Tool radius: Compensation value for the tool
radius

In the programming dialog, you can transfer the value
for tool length and tool radius directly into the input
line by pressing the desired axis soft key.

Example

4 TOOL DEF 5 L+10 R+5