以上示例展示如何使用 REV 拉刀在链条小齿轮上拉削键槽。为了实现无毛刺拉削,对键槽在与孔(直径为 25 H7)相邻的边缘进行了 0.2 x 45° 倒角。使用 REV 拉刀可以避免移动工件,因此与传统的拉床和插床相比,可大幅减少加工时间,使机加工时间更快。此外,使用 REV 拉刀时,如果经检查第一个键槽已对齐,则此后的所有键槽都将与孔径水平完全对齐。在不同机床上执行车削和拉削加工时,由于无法避免夹持误差,因此很难实现这种对齐。
编程示例:
Highlighted in red only the values that require editing
O1000(RECALL MACRO O1000)
#1=0 (0=INT-PROCESSING 1=EXT-PROCESSING)
#2=0707 (TOOL NUMBER - WARNING: DO NOT ENTER T BEFORE 0707)
#3=15.0 (Z AXIS WORK START DISTANCE)
#4=0.2 (X AXIS WORK START DISTANCE)
#5=25 (HOLE OR SHAFT DIAMETER)
#6=8 (INSERT WIDTH)
#7=3.3 (PROCESSING DEPTH ON X AXIS RADIUS)
#8=30 (PROCESSING LENGTH ON Z AXIS)
#9=6000 (CUTTING SPEED IN MILLIMETRES PER MINUTE)
#10=0,05 (INCREMENT OF EACH PASS)
#11=0 (ADMITTED DRAUGHT ERROR ON LONGITUDINAL RADIUS OF 0.25 MAX)
#12=90 (DEPARTURE ANGLE 90°/45°)
#13=2 (NUMBER OF FINISHINGS WITHOUT REMOVAL)
#14=1 (NUMBER OF OPERATIONS)
#15=0 (C-AXIS ANGLE BEFORE PROCESSING)
#16=0 (ANGLE BETWEEN OPERATIONS)
#17=0 (CODE G RETURN 0= FAST- 1=WORK)
#18=6000 (FEED BACK Z AXIS ACTIVATED ONLY IF #17=1)
#19=0 (WORKING ANGLE 0=CYLINDRICAL/WITH VALUE=CONICAL)
#20=0 (HELIX ANGLE +- INTERPOLATED WITH C AXIS)
#21=0 ( PRIMITIVE DIAMETER OF SPIRAL TEETH)
#22=35 (CODE M ON C AXIS)
#23=34 (CODE M OFF C AXIS)
#24=90 (CODE M BRAKE RELEASE C AXIS)
#25=89 (CODE M BRAKE LOCK C AXIS)
#26=8 (REFRIGERANT 8=ON 0=OFF)
#27=1 (BRAKE 0=NO 1=YES)
M98P8000 (RECALL MACRO)
(M99=BACK TO MAIN PROGRAMME)
OR (M30=END PROGRAMME)