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N15 R11=10 R23=0 R25=0 /Parameter definition
R27=1 R28=1 R30=2
R31=1 R33=0 R36=1
R37=0.8
N20 L975 /Measure radius in minus Y
direction
N25 G00 G53 X105 /Approach tool change position
N30 G53 Y83 D0
N35 M30
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-9
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2 Calibrating the workpiece
5.2 Calibrating the workpiece probe
With milling machines and machining centres the probe is usually loaded into the spindle from
a tool magazine. This may result in errors when additional measurements are performed on
account of probe clamping tolerances in the spindle. In addition, the probe trigger point must
be precisely determined in relation to the spindle centre. This is permitted by the calibration
cycle which makes it possible to calibrate the probe either in a bore (plane) or at a surface
(applicate).
The distinction is made by defining R23 as follows:
R23=0 Calibrating in a reference bore (plane)
R23=1 Calibrating in a reference bore (applicate)
R23=2 Calibrating in random bore (plane)
R23=3 Calibrating at random surface (applicate)
Probe types used:
" Multidirectional probe
" Monodirectional probe (bidirectional probe)
(see Section 1.3)
" Probes offset with respect to the spindle centre can also be calibrated
(see Figs. 5.5 and 5.6).
The various probe types are differentiated by defining R22:
R22 = xxx
1...3 Probe number
0 Multidirectional probe
1 Monodirectional probe
0 No calculation of probe ball diameter
1 Calculation of probe ball diameter by means of L963 and
storing in the relevant MDC R184, R189 or R194.
Call of L963 is effected automatically in cycle L976.
The probe ball diameter must only be calculated when the following cycles (measurement
variants) are used:
L978 with differential measurement
L979
Note: Cycle L963 requires approx. 10 seconds for calculating the probe ball diameter.
R00 is used to parameterize L963.
5-10 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN)
07.89 5 Measuring Cycles for Milling Machines and Machining Centres
5.2 Calibrating the workpiece
Y
F
Spindle and
workpiece
probe
M
X
SP03641.0
Fig. 5.5 Workpiece probe arranged in the spindle centre
Y
F
Spindle
R159
Probe
R158
M
X
SP03642.0
Fig. 5.6 Probe offset relative to spindle centre
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-11
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2.1 Calibrating workpiece probe in reference bore (plane)
5.2.1 Calibrating workpiece probe in reference bore (plane)
Function and application
The measuring cycle calibrates the probe clamped in the spindle in a reference bore. A
maximum of 3 probes can be calibrated. The trigger points determined are loaded into the
MDC R184-R198.
Up to 3 reference bores can be selected with parameter R12. The cycle automatically
positions the probe in the reference bore selected, this position being paraxial with linear
interpolation over the shortest distance.
The probe is at the centre of the bore on completion of calibration.
Preconditions
" The dimensions of the reference bore in relation to the machine zero point must have
been input in the MDC R169-R183.
" The valid reference bore is specified with R12 (3 ranges possible).
" The probe must be prepositioned with tool offset and with G53 (ZO deselection).
" Random starting point
" The probe ball must be above the upper edge of the reference bore.
5-12 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN)
07.89 5 Measuring Cycles for Milling Machines and Machining Centres
5.2.1 Calibrating workpiece probe in reference bore (plane)
Definitions
The following parameters must be defined prior to call:
R12 = 1...3 Selection of reference bore
R13 = 0...359.5 Compensation angle position for monodirectional probe (only if R199/2=1)
R22 = xxx
1...3 Probe number
0 Multidirectional probe
1 Monodirectional probe
0 No calculation of probe ball diameter
1 Calculation of probe ball diameter by means of L963 and
storing in the relevant MDC R184, R189 or R194.
Call of L963 is effected automatically in cycle L976.
R23 = 0 Calibrating in reference bore (plane)
R25 0 Variable measuring speed (mm/min)
R25=0 Standard cycle value
R27 = 1...Rmax Number of measurements at same location (typically 1...3)
R28 = 1...Rmax Multiplication factor for measurement path 2a
R33 = Zero compensation range
R36 = Safe area
The following values are available in R parameters on completion of the cycle:
R42 Probe ball diameter
R43 Trigger point abscissa -direction
R44 Trigger point abscissa +direction
R45 Trigger point ordinate -direction
R46 Trigger point ordinate +direction
R47 Reference bore No./probe No.
Re R47: e.g.: 11
Probe number
Number of reference bore
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-13
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2.1 Calibrating workpiece probe in reference bore (plane)
Y (Ordinate)
F
Trigger-
point
- 3
+y
Trigger-
point
+3
6
- y
Trigger-
point +x
- 3
Trigger point - x
+3
M
(Abscissa)
X
SP00397.1
Fig. 5.7 Workpiece probe
5-14 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN)
07.89 5 Measuring Cycles for Milling Machines and Machining Centres
5.2.1 Calibrating workpiece probe in reference bore (plane)
Y (Ordinate)
Spindle
F
N15
100
130
(Abscissa)
X
M
200
Z (Applicate)
F
N15
50 (D99)
N15
20
(Abscissa)
X
M
200
SP00284.10
Fig. 5.8 Reference bore
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-15
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2.1 Calibrating workpiece probe in reference bore (plane)
Programming example: Calibrating workpiece probe 1 in reference bore 1 in the
X-Y plane
Values in MDC (loaded before cycle call):
R169= 200
R170= 130
R171= 20 Ref. bore No. 1 (see Fig. 5.8)
R172= 0
R173= 100
R184= 6
R185= 3
R186= -3 Probe No. 1 (see Fig. 5.7)
R187= 3
R188= -3
%MPF 9761
N1 T200 /T No. probe
N5 G53 G17 G00 D99 Z100 /Selection of length com-
pensation without ZO
N10 R12=1 R22=1 R23=0 R25=0 /Parameters for calibrating cycle
R27=1 R28=1 R33=0 R36=1
N15 L976 /Cycle call for calibrating in X-Y
plane
N20 M30
The values in MDC R185-188 are modified by the calibrating cycle.
5-16 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN)
07.89 5 Measuring Cycles for Milling Machines and Machining Centres
5.2.1 Calibrating workpiece probe in reference bore (plane)
Y
Spindle
F
R153
Probe
+65
R158
Ref. bore
- 103
40
R170
40
M
R169
X
-188
SP03644.0
Fig. 5.9 Workpiece probe offset
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-17
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2.1 Calibrating workpiece probe in reference bore (plane)
Programming example with offset workpiece probe (Fig. 5.9)
Values in MDC:
R158= -103 X axis offset
R159= 65 Y axis offset
R169= -188
R170= 40
R171= 0 Ref. bore No. 1
R172= -30
R173= 40
R184= 6
R185= 3
R186= -3 Probe No. 1
R187= 3
R188= -3
The probe length (Z axis) must be input prior to cycle call in the TO memory, e.g. D98 (in this
case value 50).
%MPF 9762
N1 T200 /T No. probe
N5 G53 G17 G00 D98 Z100 /Selection of length com-
pensation without ZO
N10 R12=1 R22=21 R23=0 R25=0 /Parameters for calibrating cycle
R27=1 R28=1 R33=0 R36=1
N15 L976 /Cycle call for calibrating in X-Y
plane
N20 M30
The values in MDC R185-188 are modified by the calibrating cycle.
5-18 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN) [ Pobierz całość w formacie PDF ]
zanotowane.pl doc.pisz.pl pdf.pisz.pl exclamation.htw.pl
N15 R11=10 R23=0 R25=0 /Parameter definition
R27=1 R28=1 R30=2
R31=1 R33=0 R36=1
R37=0.8
N20 L975 /Measure radius in minus Y
direction
N25 G00 G53 X105 /Approach tool change position
N30 G53 Y83 D0
N35 M30
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-9
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2 Calibrating the workpiece
5.2 Calibrating the workpiece probe
With milling machines and machining centres the probe is usually loaded into the spindle from
a tool magazine. This may result in errors when additional measurements are performed on
account of probe clamping tolerances in the spindle. In addition, the probe trigger point must
be precisely determined in relation to the spindle centre. This is permitted by the calibration
cycle which makes it possible to calibrate the probe either in a bore (plane) or at a surface
(applicate).
The distinction is made by defining R23 as follows:
R23=0 Calibrating in a reference bore (plane)
R23=1 Calibrating in a reference bore (applicate)
R23=2 Calibrating in random bore (plane)
R23=3 Calibrating at random surface (applicate)
Probe types used:
" Multidirectional probe
" Monodirectional probe (bidirectional probe)
(see Section 1.3)
" Probes offset with respect to the spindle centre can also be calibrated
(see Figs. 5.5 and 5.6).
The various probe types are differentiated by defining R22:
R22 = xxx
1...3 Probe number
0 Multidirectional probe
1 Monodirectional probe
0 No calculation of probe ball diameter
1 Calculation of probe ball diameter by means of L963 and
storing in the relevant MDC R184, R189 or R194.
Call of L963 is effected automatically in cycle L976.
The probe ball diameter must only be calculated when the following cycles (measurement
variants) are used:
L978 with differential measurement
L979
Note: Cycle L963 requires approx. 10 seconds for calculating the probe ball diameter.
R00 is used to parameterize L963.
5-10 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN)
07.89 5 Measuring Cycles for Milling Machines and Machining Centres
5.2 Calibrating the workpiece
Y
F
Spindle and
workpiece
probe
M
X
SP03641.0
Fig. 5.5 Workpiece probe arranged in the spindle centre
Y
F
Spindle
R159
Probe
R158
M
X
SP03642.0
Fig. 5.6 Probe offset relative to spindle centre
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-11
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2.1 Calibrating workpiece probe in reference bore (plane)
5.2.1 Calibrating workpiece probe in reference bore (plane)
Function and application
The measuring cycle calibrates the probe clamped in the spindle in a reference bore. A
maximum of 3 probes can be calibrated. The trigger points determined are loaded into the
MDC R184-R198.
Up to 3 reference bores can be selected with parameter R12. The cycle automatically
positions the probe in the reference bore selected, this position being paraxial with linear
interpolation over the shortest distance.
The probe is at the centre of the bore on completion of calibration.
Preconditions
" The dimensions of the reference bore in relation to the machine zero point must have
been input in the MDC R169-R183.
" The valid reference bore is specified with R12 (3 ranges possible).
" The probe must be prepositioned with tool offset and with G53 (ZO deselection).
" Random starting point
" The probe ball must be above the upper edge of the reference bore.
5-12 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN)
07.89 5 Measuring Cycles for Milling Machines and Machining Centres
5.2.1 Calibrating workpiece probe in reference bore (plane)
Definitions
The following parameters must be defined prior to call:
R12 = 1...3 Selection of reference bore
R13 = 0...359.5 Compensation angle position for monodirectional probe (only if R199/2=1)
R22 = xxx
1...3 Probe number
0 Multidirectional probe
1 Monodirectional probe
0 No calculation of probe ball diameter
1 Calculation of probe ball diameter by means of L963 and
storing in the relevant MDC R184, R189 or R194.
Call of L963 is effected automatically in cycle L976.
R23 = 0 Calibrating in reference bore (plane)
R25 0 Variable measuring speed (mm/min)
R25=0 Standard cycle value
R27 = 1...Rmax Number of measurements at same location (typically 1...3)
R28 = 1...Rmax Multiplication factor for measurement path 2a
R33 = Zero compensation range
R36 = Safe area
The following values are available in R parameters on completion of the cycle:
R42 Probe ball diameter
R43 Trigger point abscissa -direction
R44 Trigger point abscissa +direction
R45 Trigger point ordinate -direction
R46 Trigger point ordinate +direction
R47 Reference bore No./probe No.
Re R47: e.g.: 11
Probe number
Number of reference bore
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-13
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2.1 Calibrating workpiece probe in reference bore (plane)
Y (Ordinate)
F
Trigger-
point
- 3
+y
Trigger-
point
+3
6
- y
Trigger-
point +x
- 3
Trigger point - x
+3
M
(Abscissa)
X
SP00397.1
Fig. 5.7 Workpiece probe
5-14 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN)
07.89 5 Measuring Cycles for Milling Machines and Machining Centres
5.2.1 Calibrating workpiece probe in reference bore (plane)
Y (Ordinate)
Spindle
F
N15
100
130
(Abscissa)
X
M
200
Z (Applicate)
F
N15
50 (D99)
N15
20
(Abscissa)
X
M
200
SP00284.10
Fig. 5.8 Reference bore
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-15
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2.1 Calibrating workpiece probe in reference bore (plane)
Programming example: Calibrating workpiece probe 1 in reference bore 1 in the
X-Y plane
Values in MDC (loaded before cycle call):
R169= 200
R170= 130
R171= 20 Ref. bore No. 1 (see Fig. 5.8)
R172= 0
R173= 100
R184= 6
R185= 3
R186= -3 Probe No. 1 (see Fig. 5.7)
R187= 3
R188= -3
%MPF 9761
N1 T200 /T No. probe
N5 G53 G17 G00 D99 Z100 /Selection of length com-
pensation without ZO
N10 R12=1 R22=1 R23=0 R25=0 /Parameters for calibrating cycle
R27=1 R28=1 R33=0 R36=1
N15 L976 /Cycle call for calibrating in X-Y
plane
N20 M30
The values in MDC R185-188 are modified by the calibrating cycle.
5-16 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN)
07.89 5 Measuring Cycles for Milling Machines and Machining Centres
5.2.1 Calibrating workpiece probe in reference bore (plane)
Y
Spindle
F
R153
Probe
+65
R158
Ref. bore
- 103
40
R170
40
M
R169
X
-188
SP03644.0
Fig. 5.9 Workpiece probe offset
© Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02 5-17
SINUMERIK 810/820, 850/880 (BN)
5 Measuring Cycles for Milling Machines and Machining Centres 07.89
5.2.1 Calibrating workpiece probe in reference bore (plane)
Programming example with offset workpiece probe (Fig. 5.9)
Values in MDC:
R158= -103 X axis offset
R159= 65 Y axis offset
R169= -188
R170= 40
R171= 0 Ref. bore No. 1
R172= -30
R173= 40
R184= 6
R185= 3
R186= -3 Probe No. 1
R187= 3
R188= -3
The probe length (Z axis) must be input prior to cycle call in the TO memory, e.g. D98 (in this
case value 50).
%MPF 9762
N1 T200 /T No. probe
N5 G53 G17 G00 D98 Z100 /Selection of length com-
pensation without ZO
N10 R12=1 R22=21 R23=0 R25=0 /Parameters for calibrating cycle
R27=1 R28=1 R33=0 R36=1
N15 L976 /Cycle call for calibrating in X-Y
plane
N20 M30
The values in MDC R185-188 are modified by the calibrating cycle.
5-18 © Siemens AG 1989 All Rights Reserved 6ZB5 410-0CT02
SINUMERIK 810/820, 850/880 (BN) [ Pobierz całość w formacie PDF ]