818 Каталог GUHRING 2016 Режущий инструмент для обработки наружной и внутренней резьбы Стр.806

Каталог GUHRING 2016 Режущий инструмент для резьбы Стр. 806 0818 Lab2u

Technical section THREAD MILLING PROGRAMMING, PART 1 Program specifications Thread milling functions G00 Rapid movement G90 Absolute dimension G01 Feed G91 Incremental dimension G02 Circular interpolation (clockwise) M03 Spindle on (clockwise rotation) G03 Circular interpolation (anti-clockwise) M05 Spindle stop G17 Layer selection x-y axis M08 Coolant on G18 Layer selection z-x axis X Axis G19 Layer selection y-z axis Y Axis G40 Cancel tool correction Z Axis G41 Tool path correction (left of contour) I Thread pitch parallel to X-axis G42 Tool path correction (right of contour) J Thread pitch parallel to Y-axis G43 Tool length compensation (call-up) S Spindle speed G49 Tool length compensation (deselect) F Feed G54 Work offset CNC internal thread milling 1. Moving to start position 2. Moving to thread depth in bore 3.180° descending loop to contour 4.360° full circular movement of thread milling cutter 5. 180° exit loop to centre of bore 6. Rapid movement from bore to start position entry cycle 180° (always half feed rate) Y+ I Y+ 1 Y n Formula of calculation v _ d . jt . n vc 1000 vc . 1000 d . Jt vf _ n . z . fz vm _ vf . (D - d) D vb _ n . fb vc _ cutting speed vf _ contour feed vm _ centre point path feed n _ revolutions z _ number of teeth fz _ feed per tooth fb _ feed per drill per revolution vb _ drill feed rate D _ 0 nom. of thread mm d _ milling cutter nom. 0 mm for drill/thread milling 806 GUHRING