FANUC CNC Parts CANNED CYCLES (G73, G74, G76, G80-G89, G98, G99) (M series)

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Shanon Sherman
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1 B 63502EN/ FUNCTIONS TO SIMLIFY ROGRAMMING 13.1 CANNED CYCLES (G73, G74, G76, G80-G89, G98, G99) (M series) M series Canne is a function to simplify commans for machining (boring, rilling, or tapping, etc. The canne has the positioning plane an the rilling axis. The positioning plane is specifie with the plane selection of G17, G18, an G19. The rilling axis is the basic axis X, Y or Z (that oes not compose the positioning plane) or its parallel axis. G coe ositioning plane Drilling axis G17 Xp Yp plane Zp G18 Zp Xp plane Yp G19 Yp Zp plane Xp Xp : X axis or its parallel axis Yp : Y axis or its parallel axis Zp : Z axis or its parallel axis The rilling axis aress commane in the same block as the G coes, G73 - G89, ecies whether the rilling axis is the basic axis or its parallel axis. If the rilling axis aress was not commane, the basic axis becomes the rilling axis. Axis other than the rilling axis becomes the positioning axis. Example) When U, V, W axes are set as parallel axes for X, Y, Z axes respectively. G17G Z_ ; Drilling axis is Z axis. G17G W_; Drilling axis is W axis. G18G Y_ ; Drilling axis is Y axis. G18G V_ ; Drilling axis is V axis. G19G X_ ; Drilling axis is X axis. G19G U_ ; Drilling axis is U axis. It is not always necessary to comman G17, G18, G19 in the same block as G73 - G89. NOTE Z axis can always be appointe the rilling axis by parameter setting. ositioning can be commane with optional axes other than the rilling axis. The rilling starts after the positioning. The following explanations are one on the XY plane, an Z axis as the rilling axis. The following 13 types of canne s are available. FANUC CNC arts 103

2 13. FUNCTIONS TO SIMLIFY ROGRAMMING B 63502EN/01 13 types of canne s (1/4) G coe G98 moe G99 moe G73 High spee peck rilling (Note 1) G74 Spinle CCW Spinle CCW Counter tapping Spinle CW Spinle CW G76 Spinle CW Initial Spinle CW FIne boring osition Z 104

3 B 63502EN/ FUNCTIONS TO SIMLIFY ROGRAMMING 13 types of canne s (2/4) G coe G98 moe G99 moe G81 ositon R Drilling (Spot rilling) G82 Drilling (Counter boring) G83 eck rilling (Note 1) G83 Small hole pock rilling Over loa torue Over loa torue FANUC CNC arts 105

4 13. FUNCTIONS TO SIMLIFY ROGRAMMING B 63502EN/01 13 types of canne s (3/4) G coe G98 moe G99 moe G84 ositon R Spinle CW ositon R Spinle CW Tapping Spinle CCW Spinle CCW G85 ositon R ositon R Boring Spinle CW G86 Spinle CW ositon R ositon R Boring Spinle stop Spinle stop G87 Spinle CW Not use Back boring Spinle CW 106

5 B 63502EN/ FUNCTIONS TO SIMLIFY ROGRAMMING 13 types of canne s (4/4) G coe G98 moe G99 moe Spinle CW G88 Spinle CW Boring Dwell Spinle stop Dwell Spinle stop G89 Boring Cutting fee Rapi traverse Manual fee Dwell Z (Hole bottom position) I R Note 1 Oriente spinle stop (Spinle stops at constant rotation position) Shift Initial position of G73 an G83 is set by parameters. FANUC CNC arts 107

6 13. FUNCTIONS TO SIMLIFY ROGRAMMING B 63502EN/01 When the rilling axis is Z axis, machining ata in the canne is commane as follows: Format G X_ Y_ Z_ R_ Q K_ F_ ; Drilling moe G ; See previous table. Drilling position atax, Y ; Comman position of the hole. Z : Specify hole en position shown in the previous table. R : Specify position shown in the previous table. Q : Specify cutting uantity with G73, G83, an shift uantity with G76, G87, : Specify well time at the hole bottom. K : Specify how may times to repeat. When specifie K0, rilling ata will be set, but no rilling will be one. F : Specify fee rate for cutting. Explanations return (G99) By specifying G99, return point in canne is specifie to. The rilling starts from the en point of the previous block. If the previous block has ene in the initial point, it begins from the initial point an returns to the. Example) When G81 was commane uner G99 moe Cutting fee Rapi traverse return (G98) By specifying G98, return point in canne is specifie to the initial. The rilling starts from the en point of the previous block. If the previous block has ene in the, it begins from the an returns to the initial point. Cutting fee Rapi traverse 108

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