Siemens SINUMERIK 840D sl Programming Manual page 10

Table of contents
5 Coordinate transformations (frames) ..................................................................................................... 271
5.1 Coordinate transformation via frame variables ......................................................................... 271
5.1.1 Predefined frame variable ($P_IFRAME, $P_BFRAME, $P_PFRAME, $P_ACTFRAME)....... 273
5.2 Frame variables / assigning values to frames........................................................................... 278
5.2.1 Assigning direct values (axis value, angle, scale) .................................................................... 278
5.2.2 Reading and changing frame components (TR, FI, RT, SC, MI).............................................. 280
5.2.3 Linking complete frames ........................................................................................................... 282
5.2.4 Defining new frames (DEF FRAME) ......................................................................................... 283
5.3 Coarse and fine offsets (CFINE, CTRANS) .............................................................................. 284
5.4 External zero offset ................................................................................................................... 286
5.5 Preset offset with PRESETON.................................................................................................. 287
5.6 Frame calculation from three measuring points in space (MEAFRAME) ................................. 288
5.7 NCU global frames.................................................................................................................... 292
5.7.1 Channel-specific frames ($P_CHBFR, $P_UBFR) ................................................................... 293
5.7.2 Frames active in the channel .................................................................................................... 294
6 Transformations..................................................................................................................................... 299
6.1 General programming of transformation types ......................................................................... 299
6.1.1 Orientation movements for transformations.............................................................................. 301
6.1.2 Overview of orientation transformation TRAORI....................................................................... 305
6.2 Three, four and five axis transformation (TRAORI) .................................................................. 307
6.2.1 General relationships of universal tool head............................................................................. 307
6.2.2 Three, four and five axis transformation (TRAORI) .................................................................. 310
6.2.3 Variants of orientation programming and initial setting (ORIRESET) ....................................... 311
6.2.4 Programming the tool orientation (A..., B..., C..., LEAD, TILT) ................................................. 313
6.2.5 Face milling (A4, B4, C4, A5, B5, C5)....................................................................................... 319
6.2.6 Reference of the orientation axes (ORIWKS, ORIMKS):.......................................................... 321
6.2.7 Programming orientation axes (ORIAXES, ORIVECT, ORIEULER, ORIRPY, ORIRPY2,
ORIVIRT1, ORIVIRT2).............................................................................................................. 323
6.2.8 Orientation programming along the peripheral surface of a taper (ORIPLANE,
ORICONCW, ORICONCCW, ORICONTO, ORICONIO).......................................................... 326
6.2.9 Specification of orientation for two contact points (ORICURVE, PO[XH]=, PO[YH]=,
PO[ZH]=) ................................................................................................................................... 329
6.3 Orientation polynomials (PO[angle], PO[coordinate])............................................................... 331
6.4 Rotations of the tool orientation (ORIROTA, ORIROTR, ORIROTT, ORIROTC, THETA)....... 333
6.5 Orientations relative to the path ................................................................................................ 336
6.5.1 Orientation types relative to the path ........................................................................................ 336
6.5.2 Rotation of the tool orientation relative to the path (ORIPATH, ORIPATHS, angle of
rotation) ..................................................................................................................................... 337
6.5.3 Interpolation of the tool rotation relative to the path (ORIROTC, THETA)................................ 339
6.5.4 Smoothing of orientation characteristic (ORIPATHS A8=, B8=, C8=) ...................................... 341
Compression of the orientation (COMPON, COMPCURV, COMPCAD).................................. 342
6.6
6.7 Smoothing the orientation characteristic (ORISON, ORISOF) ................................................. 344
6.8 Kinematic transformation .......................................................................................................... 347
6.8.1 Milling on turned parts (TRANSMIT):........................................................................................ 347
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Programming Manual, 03/2013, 6FC5398-2BP40-3BA1
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