Mazak Probing on HMC

[ARP]

I'm a long time VMC and Mastercam user. I am now working for a place that bought an HMC and has no Mastercam.

I'm using a Mazak HCN-4000 horizontal and Mazatrol to machine castings in low volumes. The machine has a Renishaw OMP-60 and software.

The castings vary enough that I have been probing every one before machining to ensure my work offsets are good to each part. I'm using softjaws (machined aluminum bars) to hold the specific shapes in Kurt DX6 crossover vises mounted to Kurt 2 sided or 4 sided tombstones. I machine features on the face of parts and then rotate the stone 90 degrees left and right to do some more features on the sides. I want the Y work offset to be the same for the face work and for both sides. So my probing program just repeats the motions 3 times to get the same Y value in multiple offsets. The machine has up to 300 work offsets so I've been using specific offsets for specific parts. We don't do too many different parts so I still have lots of open work offsets.

I know there is a way to use macros to just probe the part once and then shoot those values to whatever other offset number I want...but I'm having a tough time figuring out how. I am the programmer, operator, tooling co-ordinator, fixture guy, maintenance guy... just like all the rest of you folks.

The example below uses G54.1 P31 as my face ops and P32 and P34 are the side holes that I make NPT's. It also flips around 180 degrees to probe a second part on the tombstone and do face ops at P36 and side holes at P33 and P35. I want the Y value for all 3 offsets for that part (P31, P32, P34) to be the same. I would like to probe the face and take the Y value from P31 and copy it to the Y value of  P32 and P34 without actually waiting for the machine to bump the part 2 more times and the same with the backside part.

This is a sub-program that is called in Mazatrol. My probing routines are all EIA programs and the main programs are all made with Mazatrol.

Any help is greatly appreciated.

[jlw™]

This is an over simplification here but it sounds like you only need a nudge in the right direction.

To set G54.1P2 Y = G54.1P1 Y:

#70022=#70002

but I would set it like so:

#500=#70002

#70022=#500

or similar.

[jlw™]

Here is one example where I use the center of rotation to set a new offset about a C180 rotation so that you can see how it flows:

 

<SET-G55>()
(SET-G55)
(Be sure G54 XYZBC are set!!!)
(J. Wright, 04/2017)

N10
(=== Declare/Initialize Variables  ===)
#525=#50700 (X-COR)
#526=#50705 (Y-COR)
#527=#5221  (X-G54)
#528=#5222  (Y-G54)
#529=#5223  (Z-G54)
#530=#5225  (C-G54)
#531=0.     (X-G55 #5421)
#532=0.     (Y-G55 #5422)
#533=0.     (C-G55 #5245)
#534=0.     (Operator)
#535=0.     (Operator)
#536=0.     (Operator)

N100
(=== Solve X Deviation ===)
#534=ABS[#527]#535=ABS[#525]
IF[#527GT#525]GOTO110
#536=#534-#535
#531=#525+#536
#5241=#531
IF[#531EQ#531]GOTO120
N110
#536=[#535-#534]
#531=[-1*[#536-#525]]
#5241=#531

N120
(=== Solve Y Deviation ===)
#534=ABS[#528]#535=ABS[#526]
IF[#528GT#526]GOTO130
#536=[#534-#535]
#532=[#526+#536]
#5242=#532
IF[#532EQ#532]GOTO140 
N130
#536=#535-#534
#532=[-1*[#536-#526]]
#5242=#532

N140
(=== Set Z ===)
#5243=#529

M30

[jlw™]

Did you have any luck?

[ARP]

Thanks for the help jlw!

I had a look at your work and almost got time to work on it... then got de-railed on a bunch of other stuff.

I'm going to work on it this weekend when things are quiet at work.

Cheers,