Heidenhain TNC 620 (34056x-04) Cycle programming Manual de usuario Pagina 105
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Fundamentals of Thread Milling 4.5
4
TNC 620 | User's Manual Cycle Programming | 5/2013
105
4.5 Fundamentals of Thread Milling
Prerequisites
Your machine tool should feature internal spindle cooling
(cooling lubricant at least 30 bars, compressed air supply at
least 6 bars).
Thread milling usually leads to distortions of the thread profile.
To correct this effect, you need tool-specific compensation
values which are given in the tool catalog or are available from
the tool manufacturer. You program the compensation with the
delta value for the tool radius DR in the TOOL CALL.
The Cycles 262, 263, 264 and 267 can only be used with
rightward rotating tools. For Cycle 265 you can use rightward
and leftward rotating tools.
The working direction is determined by the following input
parameters: Algebraic sign Q239 (+ = right-hand thread / – =
left-hand thread) and milling method Q351 (+1 = climb / –1 =
up-cut). The table below illustrates the interrelation between the
individual input parameters for rightward rotating tools.
Internal
thread
Pitch Climb/
Up-cut
Work direction
Right-handed + +1(RL) Z+
Left-handed – –1(RR) Z+
Right-handed + –1(RR) Z–
Left-handed – +1(RL) Z–
External
thread
Pitch Climb/
Up-cut
Work direction
Right-handed + +1(RL) Z–
Left-handed – –1(RR) Z–
Right-handed + –1(RR) Z+
Left-handed – +1(RL) Z+
The TNC references the programmed feed rate
during thread milling to the tool cutting edge. Since
the TNC, however, always displays the feed rate
relative to the path of the tool tip, the displayed value
does not match the programmed value.
The machining direction of the thread changes if you
execute a thread milling cycle in connection with
Cycle 8 MIRROR IMAGE in only one axis.
- User’s Manual 1
- Cycle Programming 1
- About this Manual 4
- Intended place of operation 9
- Legal information 9
- Fundamentals 10
- 73498x-02 10
- Contents 11
- Fundamentals / 39
- Overviews 39
- Fundamentals / Overviews 40
- 1.1 Introduction 40
- Available Cycle Groups 1.2 41
- 1.2 Available Cycle Groups 41
- Using Fixed Cycles 43
- 2.1 Working with fixed cycles 44
- Working with fixed cycles 2.1 45
- Using GLOBAL DEF information 49
- Entering PATTERN DEF 53
- Using PATTERN DEF 53
- Defining a single pattern 55
- Defining a full circle 57
- Point tables 2.4 59
- 2.4 Point tables 59
- Drilling 63
- Fixed Cycles: Drilling 64
- 3.1 Fundamentals 64
- G240, software option 19) 65
- DRILLING (Cycle 200) 3.3 67
- 3.3 DRILLING (Cycle 200) 67
- G204, software option 19) 77
- 3.11 Programming Examples 90
- Programming Examples 3.11 91
- Tapping / Thread 93
- 4.1 Fundamentals 94
- ISO: G207) 100
- Cycle run 101
- Cycle parameters 103
- Prerequisites 105
- G262, software option 19) 107
- 4.11 Programming Examples 126
- Programming Examples 4.11 127
- Fixed Cycles: 129
- Pocket Milling / 129
- Stud Milling / Slot 129
- 5.1 Fundamentals 130
- G253, software option 19) 139
- G254, software option 19) 143
- G257, software option 19) 152
- 5.8 Programming Examples 156
- Programming Examples 5.8 157
- Pattern Definitions 159
- 6.1 Fundamentals 160
- G221, software option 19) 164
- 6.4 Programming Examples 166
- Programming Examples 6.4 167
- Contour Pocket 169
- Fixed Cycles: Contour Pocket 170
- 7.1 SL Cycles 170
- SL Cycles 7.1 171
- Superimposed contours 7.3 173
- 7.3 Superimposed contours 173
- G120, software option 19) 177
- G121, software option 19) 179
- G123, software option 19) 184
- G124, software option 19) 185
- G125, software option 19) 187
- Programming Examples 7.10 189
- 7.10 Programming Examples 189
- Cylindrical Surface 195
- 8.1 Fundamentals 196
- ISO: G127, software option 1) 197
- 8.5 Programming Examples 206
- Programming Examples 8.5 207
- Defining contour descriptions 212
- Superimposed contours 214
- Contour description programs: 219
- Multipass Milling 223
- 10.1 Fundamentals 224
- G231, software option 19) 227
- G232, software option 19) 231
- Programming Examples 10.5 235
- 10.5 Programming Examples 235
- Cycles: Coordinate 237
- Transformations 237
- 11.1 Fundamentals 238
- (Cycle 7, DIN/ISO: G53) 240
- Editing mode of operation 242
- Configuring the datum table 244
- To exit a datum table 244
- Status displays 244
- G80, software option 1) 253
- Resetting 255
- Workspace monitoring 256
- Programming Examples 11.10 259
- 11.10 Programming Examples 259
- Cycles: Special 261
- Functions 261
- Cycles: Special Functions 262
- 12.1 Fundamentals 262
- Function 263
- ISO: G36) 266
- Cycle function 267
- ISO: G225) 270
- Using Touch Probe 273
- Using Touch Probe Cycles 274
- Probe Cycles 277
- Multiple measurements 279
- Touch probe table 13.3 281
- 13.3 Touch probe table 281
- Touch Probe 283
- Cycles: Automatic 283
- Measurement 283
- Misalignment 283
- 14.1 Fundamentals 284
- Fundamentals 14.1 285
- Datum Setting 303
- 15.1 Fundamentals 304
- Fundamentals 15.1 305
- Workpiece 355
- Inspection 355
- 16.1 Fundamentals 356
- Fundamentals 16.1 357
- G420, software option 17) 364
- G421, software option 17) 367
- G431, software option 17) 392
- 16.14 Programming Examples 395
- Programming Examples 16.14 395
- 17.1 Fundamentals 400
- G460, software option 17) 405
- 5 TCH PROBE 461 CALIBRATE TS 407
- Q434=+5 ;DATUM 407
- Kinematics 413
- Overview 415
- 18.2 Prerequisites 416
- ISO: G450, Option) 417
- Logging function 418
- Notes on data management 419
- DIN/ISO: G451, option) 420
- Positioning direction 422
- Notes on the accuracy 425
- Backlash 427
- Various modes (Q406) 432
- DIN/ISO: G452, option) 434
- Drift compensation 441
- Tool Measurement 445
- 19.1 Fundamentals 446
- Fundamentals 19.1 447
- Tables of Cycles 461
- 20.1 Overview 462
- Overview 20.1 463
- Touch probes from HEIDENHAIN 468
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