Measuring The Tool; Overview Of Function And Sequence; Calibrating The Tool Probe - Siemens SINUMERIK 840D sl Programming Manual

Measuring in JOG

4.3 Measuring the tool

4.3 Measuring the tool
4.3
4.3.1

Overview of function and sequence

The "tool measurement" function permits the following functions.

• Calibrating the tool probe

• Determining the tool length or radius of milling tools, or tool length of drills and then
The tools are measured on the machine.
General sequence
When you press softkey "Measure tool", the following selection and more appears on the
vertical softkey bar:
1. The measuring variant is selected and the input screen form is filled with values.
2. Position the tool near the tool measuring probe with the axis traverse keys.
3. "NC start" starts measurement and the remaining sequence with offset entry runs
4.3.2 Calibrating the tool probe
The function "Calibrate tool measuring probe" calculates the current distance (switching
points) between the machine zero and the tool probe (calibration relative to machine) using a
calibration tool and automatically writes them to a data storage area as trigger values.
The type 120 (end mill) can be defined as the tool type for the calibration tool. There is no
special "calibration tool" type.
Prerequisite
• The tool probe is mounted in the machining space of the machine (usually on the
• All necessary data of the tool probe (form, dimensions, ...) are entered in the intended
• The precise length 1 and the radius of the calibration tool must be stored in a tool offset
• The calibration tool is in the spindle and is activated with the offset data set.
4-42
setting the appropriate offset in the tool offset memory.
automatically.
machine table) and aligns with the machining axes (machine axes).
variables for "measuring in JOG" E_MESS_MT_... in data block GUD7 (see Data
description chapter "Data for measuring in JOG").
data set (geometry).
Programming Manual, Release 04/2006, 6FC5398-4BP10-0BA0
Measuring cycles