Programming Q parameters
9.12 Programming examples
9
380
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
Example: Concave cylinder machined with spherical
cutter
Program run
This program functions only with a spherical cutter.
The tool length refers to the sphere center.
The contour of the cylinder is approximated by many
short line segments (defined in Q13). The more
line segments you define, the smoother the curve
becomes.
The cylinder is milled in longitudinal cuts (here: parallel
to the Y axis).
The milling direction is determined with the starting
angle and end angle in space:
Machining direction clockwise:
Starting angle > end angle
Machining direction counterclockwise:
Starting angle < end angle
The tool radius is compensated automatically
%CYLIN G71 *
N10 D00 Q1 P01 +50*
Center in X axis
N20 D00 Q2 P01 +0*
Center in Y axis
N30 D00 Q3 P01 +0*
Center in Z axis
N40 D00 Q4 P01 +90*
Starting angle in space (Z/X plane)
N50 D00 Q5 P01 +270*
End angle in space (Z/X plane)
N60 D00 Q6 P01 +40*
Cylinder radius
N70 D00 Q7 P01 +100*
Length of the cylinder
N80 D00 Q8 P01 +0*
Rotational position in the X/Y plane
N90 D00 Q10 P01 +5*
Allowance for cylinder radius
N100 D00 Q11 P01 +250*
Feed rate for plunging
N110 D00 Q12 P01 +400*
Feed rate for milling
N120 D00 Q13 P01 +90*
Number of cuts
N130 G30 G17 X+0 Y+0 Z-50*
Workpiece blank definition
N140 G31 G90 X+100 Y+100 Z+0*
N150 T1 G17 S4000*
Tool call
N160 G00 G40 G90 Z+250*
Retract the tool
N170 L10.0*
Call machining operation
N180 D00 Q10 P01 +0*
Reset allowance
N190 L10.0*
Call machining operation
N200 G00 G40 Z+250 M2*
Retract the tool, end program
N210 G98 L10*
Subprogram 10: Machining operation
N220 Q16 = Q6 - Q10 - Q108
Account for allowance and tool, based on the cylinder radius
N230 D00 Q20 P01 +1*
Set counter
N240 D00 Q24 P01 +Q4*
Copy starting angle in space (Z/X plane)
N250 Q25 = ( Q5 - Q4 ) / Q13
Calculate angle increment
N260 G54 X+Q1 Y+Q2 Z+Q3*
Shift datum to center of cylinder (X axis)
Summary of Contents for TNC 620 Programming Station
Page 4: ......
Page 5: ...Fundamentals ...
Page 28: ...Contents 28 HEIDENHAIN TNC 620 ISO Programming User s Manual 9 2016 ...
Page 57: ...1 First Steps with the TNC 620 ...
Page 77: ...2 Introduction ...
Page 110: ......
Page 111: ...3 Fundamentals file management ...
Page 166: ......
Page 167: ...4 Programming aids ...
Page 194: ......
Page 195: ...5 Tools ...
Page 234: ......
Page 235: ...6 Programming contours ...
Page 284: ......
Page 285: ...7 Data transfer from CAD files ...
Page 304: ......
Page 305: ...8 Subprograms and program section repeats ...
Page 323: ...9 Programming Q parameters ...
Page 384: ......
Page 385: ...10 Miscellaneous functions ...
Page 407: ...11 Special functions ...
Page 433: ...12 Multiple axis machining ...
Page 475: ...13 Pallet management ...
Page 480: ......
Page 481: ...14 Manual Operation and Setup ...
Page 549: ...15 Positioning with Manual Data Input ...
Page 554: ......
Page 555: ...16 Test Run and Program Run ...
Page 590: ......
Page 591: ...17 MOD Functions ...
Page 622: ......
Page 623: ...18 Tables and Overviews ...