举例:用OCM形状循环的轮廓

以下NC数控程序用于说明OCM循环的用法。加工中包括凸台的粗加工和精加工。

程序执行顺序

  • 刀具调用:粗加工刀(Ø 8 mm)
  • 定义循环1271
  • 定义循环1281
  • 定义和调用循环272
  • 刀具调用:精加工刀(Ø 8 mm)
  • 定义和调用循环273
  • 定义和调用循环274

0 BEGIN PGM OCM_FIGURE MM

1 BLK FORM 0.1 Z X+0 Y+0 Z-30

2 BLK FORM 0.2 X+100 Y+100 Z+0

3 TOOL CALL 4 Z S8000 F1500

; 刀具调用(直径:8 mm)

4 L Z+100 R0 FMAX M3

5 CYCL DEF 1271 OCM RECTANGLE ~

Q650=+1

;FIGURE TYPE ~

Q218=+60

;FIRST SIDE LENGTH ~

Q219=+60

;2ND SIDE LENGTH ~

Q660=+0

;CORNER TYPE ~

Q220=+2

;CORNER RADIUS ~

Q367=+0

;POCKET POSITION ~

Q224=+30

;ANGLE OF ROTATION ~

Q203=+0

;SURFACE COORDINATE ~

Q201=-10

;DEPTH ~

Q368=+0.5

;ALLOWANCE FOR SIDE ~

Q369=+0.5

;ALLOWANCE FOR FLOOR ~

Q260=+100

;CLEARANCE HEIGHT ~

Q578=+0.2

;INSIDE CORNER FACTOR

6 CYCL DEF 1281 OCM RECTANGLE BOUNDARY ~

Q651=+100

;LENGTH 1 ~

Q652=+100

;LENGTH 2 ~

Q654=+0

;POSITION REFERENCE ~

Q655=+0

;SHIFT 1 ~

Q656=+0

;SHIFT 2

7 CYCL DEF 272 OCM ROUGHING ~

Q202=+20

;PLUNGING DEPTH ~

Q370=+0.4

;TOOL PATH OVERLAP ~

Q207=+6800

;FEED RATE MILLING ~

Q568=+0.6

;PLUNGING FACTOR ~

Q253=AUTO

;F PRE-POSITIONING ~

Q200=+2

;SET-UP CLEARANCE ~

Q438=-0

;ROUGH-OUT TOOL ~

Q577=+0.2

;APPROACH RADIUS FACTOR ~

Q351=+1

;CLIMB OR UP-CUT ~

Q576=+10000

;SPINDLE SPEED ~

Q579=+0.7

;PLUNGING FACTOR S ~

Q575=+1

;INFEED STRATEGY

8 L X+50 Y+50 R0 FMAX M99

; 定位和循环调用

9 TOOL CALL 24 Z S10000 F2000

; 刀具调用(直径:8 mm)

10 L Z+100 R0 FMAX M3

11 CYCL DEF 273 OCM FINISHING FLOOR ~

Q370=+0.8

;TOOL PATH OVERLAP ~

Q385=AUTO

;FINISHING FEED RATE ~

Q568=+0.3

;PLUNGING FACTOR ~

Q253=AUTO

;F PRE-POSITIONING ~

Q200=+2

;SET-UP CLEARANCE ~

Q438=+4

;ROUGH-OUT TOOL ~

Q595=+1

;STRATEGY ~

Q577=+0.2

;APPROACH RADIUS FACTOR

12 L X+50 Y+50 R0 FMAX M99

; 定位和循环调用

13 CYCL DEF 274 OCM FINISHING SIDE ~

Q338=+15

;INFEED FOR FINISHING ~

Q385=AUTO

;FINISHING FEED RATE ~

Q253=AUTO

;F PRE-POSITIONING ~

Q200=+2

;SET-UP CLEARANCE ~

Q14=+0

;ALLOWANCE FOR SIDE ~

Q438=+4

;ROUGH-OUT TOOL ~

Q351=+1

;CLIMB OR UP-CUT

14 L X+50 Y+50 R0 FMAX M99

; 定位和循环调用

15 M30

; 程序结束

16 END PGM OCM_FIGURE MM