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HEIDENHAIN TNC 320 (340 551-02) User Manual

Page 293

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HEIDENHAIN TNC 320

293

8.6 Cy

cles f

o

r Multipass Milling

8

4th point in 1st axis

Q234 (absolute value):

Coordinate of point

4

in the reference axis of the

working plane.

8

4th point in 2nd axis

Q235 (absolute value):

Coordinate of point

4

in the minor axis of the working

plane.

8

4th point in 3rd axis

Q236 (absolute value):

Coordinate of point

4

in the tool axis

8

Number of cuts

Q240: Number of passes to be made

between points

1

and

4

,

2

and

3

.

8

Feed rate for milling

Q207: Traversing speed of the

tool in mm/min while milling. The TNC performs the
first step at half the programmed feed rate.

Example: NC blocks

72 CYCL DEF 231 RULED SURFACE

Q225=+0

;STARTING PNT 1ST AXIS

Q226=+5

;STARTING PNT 2ND AXIS

Q227=-2

;STARTING PNT 3RD AXIS

Q228=+100 ;2ND POINT 1ST AXIS

Q229=+15 ;2ND POINT 2ND AXIS

Q230=+5

;2ND POINT 3RD AXIS

Q231=+15 ;3RD POINT 1ST AXIS

Q232=+125 ;3RD POINT 2ND AXIS

Q233=+25 ;3RD POINT 3RD AXIS

Q234=+15 ;4TH POINT 1ST AXIS

Q235=+125 ;4TH POINT 2ND AXIS

Q236=+25 ;4TH POINT 3RD AXIS

Q240=40

;NUMBER OF CUTS

Q207=500 ;FEED RATE FOR MILLNG