Basic Rotation Over Two Holes (Cycle 401, Din/Iso: G401); Cycle Run - HEIDENHAIN TNC 640 User Manual

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Touch Probe Cycles: Automatic Measurement of Workpiece Misalignment | BASIC ROTATION over two holes

14.3 BASIC ROTATION over two holes (Cycle

401, DIN/ISO: G401)

Touch Probe Cycle 401 measures the centers of two holes. Then

the TNC calculates the angle between the reference axis in the

working plane and the line connecting the hole centers. With

the basic rotation function, the TNC compensates the calculated

value. As an alternative, you can also compensate the determined

misalignment by rotating the rotary table.

1 Following the positioning logic, the TNC positions the touch

probe at rapid traverse (value from FMAX column) (See

"Executing touch probe cycles", page 497) to the center of the

first hole 1.

2 Then the probe moves to the entered measuring height and

probes four points to find the first hole center.

3 The touch probe returns to the clearance height and then to the

position entered as center of the second hole 2.

4 The TNC moves the touch probe to the entered measuring

height and probes four points to find the second hole center.

5 Then the TNC returns the touch probe to the clearance height

and performs the basic rotation.

(Cycle 401, DIN/ISO: G401)

HEIDENHAIN | User's manual for cycle programming | 10/2017