Spindle Load Micro

[Mct010]

I was just wondering if their is a micro program that would let the machine know that if a operator loaded a part wrong, and I put air passes in to prevent a crash, if a micro program could tell on the 1st pass if it cleared and had no load on the spindle (part is in right) it could jump to the correct N# to start cutting the part? or something like that?

 

Just wanted to know if can be done on a 16T fanuc control

 

Mike

[Rick Henrickson The Boeing Co.]

I doubt it unless you have some sort of load monitoring which is an option or if you have probing!

[Guest]

Easily done using on machine probing.

 

That's probably the best way to approach this situation.

[crazy^millman]

And it would be a Marco program not a micro program.

 

I think it is very possible. You would have a if and eq in the statement as well as a goto but should be very doable. You need a probe and macro capabilites on the machine and should be good to go.

 

HTH

[medaq]

quote:

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And it would be a Marco program not a micro program.

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Or a macro program

 

I always wanted a macro program for big drills, that would peck at what ever percent i specify. that would rule...

 

Jim

[crazy^millman]

Do a search there is one floating around on here somewhere.

 

Yeah close but no cigar on the spelling.

[medaq]

Hmm, I am having no luck finding a macro that will peck on spindle load. I am the suck when it comes to searching

 

Jim

[crazy^millman]

Ok word for word from my notes I do not even know who provided it but I did not make this I copied it:

 

Since many of the other turning guys out there are as frustrated as I am with

the lack of peck drilling provided by most lathes with Fanuc controls,

here's a Fanuc Custom Macro B program I wrote for a custom G-Code cycle.

G74 just doesn't cut it for a deep hole drilling.

 

It will work with any 16T/18T/21T with Custom Macro B.

 

While it doesn't support perecentage peck reduction for extremely deep holes it can easily be modified.

 

code:

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%

O9013 (CUSTOM G83 DEEP HOLE CYCLE)

 

(ASSIGN G-CODE G83)

(SET PARAMETER #6053 = 83)

(CALL MACRO DRILLING CYCLE)

(G83 X0.0 Z0.0 W1.0 R0.1 Q0.1 K0.01 F0.008)

(X0. -HOLE LOCATION IN X)

(Z0. -HOLE LOCATION IN Z)

(W1.0 -INCREMENTAL HOLE DEPTH - ALWAYS POSITIVE)

(R0.1 -INCREMENTAL CLEARANCE PLANE AMOUNT - ALWAYS POSITIVE)

(Q0.1 -INCREMENTAL PECK DEPTH - ALWAYS POSITIVE)

(K0.01 -INCREMENTAL RETURN FROM RETRACT CLEARANCE - ALWAYS POSITIVE)

(F0.008 -FEEDRATE)

 

#6=ABS[#6] (FORCE K TO ABSOLUTE VALUE)

#9=ABS[#9] (FORCE F TO ABSOLUTE VALUE)

#17=ABS[#17] (FORCE Q TO ABSOLUTE VALUE)

#18=ABS[#18] (FORCE R TO ABSOLUTE VALUE)

#23=ABS[#23] (FORCE W TO ABSOLUTE VALUE)

#1=[#26+#18] (ASSIGN START POINT W/ R-PLANE TO VARIABLE)

#3=[#26-#23] (ESTABLISH FINAL Z POSITION)

 

(ALARM LOGIC)

IF [#23 EQ 0.0] GOTO 9991 (INVALID W)

IF [#18 EQ 0.0] GOTO 9992 (INVALID R)

IF [#17 EQ 0.0] GOTO 9993 (INVALID Q)

IF [#17 GT #23] GOTO 9993 (INVALID Q)

IF [#6 EQ 0.0] GOTO 9994 (INVALID K)

IF [#6 GT #17] GOTO 9994 (INVALID K)

IF [#9 EQ 0.0] GOTO 9995 (INVALID FEED)

 

G00 Z[#1] (RAPID TO Z START W/ R-PLANE)

G00 X[#24] (RAPID TO X START)

N1000

#4=[#5002-#17] (CHECK IF PECK IS FARTHER THAN FINAL DEPTH)

IF [#4 LE #3] GOTO 2000 (IF PECK IS FARTHER THAN FINAL DEPTH, GOTO N2000)

G01 W-[#17] F[#9] (PECK DRILL)

#2=#5002 (STORE CURRENT Z DEPTH)

G00 Z[#1] (RETRACT TO START POINT)

G00 Z[#2+#6] (RETURN FROM RETRACT WITH CLEARANCE K)

GOTO 1000

N2000

#4=#3

G01 Z[#4] F[#9] (DRILL TO FINAL DEPTH)

G00 Z[#1] (RETRACT TO START POINT)

M99

 

 

(ALARMS)

N9991

#3000=1(INVALID W-DEPTH!)

GOTO 9999

 

N9992

#3000=2(INVALID R-PLANE!)

GOTO 9999

 

N9993

#3000=3(INVALID Q-PECK!)

GOTO 9999

 

N9994

#3000=4(INVALID K-RETRACT!)

GOTO 9999

 

N9995

#3000=5(FEED F NOT SPECIFIED!)

GOTO 9999

 

 

N9999

M30

%

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Here are the necessary sections to copy and paste into a Mastercam vX post.

code:

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# --------------------------------------------------------------------------

# G83 PECK Drill output

# --------------------------------------------------------------------------

fmt X 2 hole_x #Hole Location X

fmt Z 2 hole_z #Hole Location Z

fmt W 2 hole_depth_w #Hole Depth W

fmt R 2 hole_plane_r #R-Plane

fmt Q 2 hole_peck_q #Peck Q

fmt K 2 hole_retract_k #Retract K

 

 

 

lpeck$ #Canned peck drill cycle, lathe

gcode$ = zero

prv_dwell$ = zero

@dwell$

comment$

pcan

hole_x = xabs

hole_z = zdrl$

hole_depth_w = abs(depth_z)

hole_plane_r = abs(peckclr$)

hole_peck_q = abs(peck1$)

hole_retract_k = abs(retr$)

 

n$,"G83", *hole_x, *hole_z, *hole_depth_w, *hole_plane_r, *hole_peck_q, *hole_retract_k, *pffr, e$

pbld, n$, *sgcode, *pfzout, e$

pcom_movea

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[Mct010]

quote:

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And it would be a Marco program not a micro program.

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LOL, macro yes your right,I knew that, I must have had a brain fart

 

Mike