probing questions

[panaceabea]

I have one paticular part I machine thousands of that starts life as a forging . I jig ten of them up on a rotary fixture aprox 6" wide x 18" long thats hung between a tailstock and an hr210 rotary . There are 5 parts on each side of the fixture. At one position I have to bore a hole and thread mill a boss on each of the 10 parts . Forgings are nice but not exact so each time I clamp a new batch of parts to the fixture I have to take my edge finder and set the y axis offset for each of the 10 parts individualy .

I dont have the probe but am considering adding it if it could possibly cut this 10-15 minute procedure down to 5 minutes or less, I currently can run 12 setups a day and I am losing 2+ hours a day.

Is it possible with the probe to write a little routine that will allow the machine to touch off in a paticular place on all 10 parts seperatley and enter the proper offsets in G154 P** automaticly ? The boss on the 10 individual parts is within .010" of the same place everytime .

What would I need to do to have the machine run over touch off on part 1 , enter the Y offset in p58 , touch off on the next part enter the y offset in p59 , etc, rotate the a axis 180 and do the other 5 parts ? Would this be a situation where a macro would need to be written and if so would I need to have Macros activated to do this with the probe?

Thanks for any help , I have no exp with a probe (alien or otherwise) other than the one on my big lathe that sets tool offsets

[kendo]

Probing does a very good job of what you're describing

you have to have macros to run the probe, so the two come as a bundle

the renishaw we got came with a whole set of pre-written macros that will do what you need to, but if you write your own macros you can set y offsets for 10 parts in much less than 5 minutes

you'll use a macro call for each part touch-off, part of that macro call will include which offset you're updating

[behindpropeller]

Originally Posted by panaceabea I have one paticular part I machine thousands of that starts life as a forging . I jig ten of them up on a rotary fixture aprox 6" wide x 18" long thats hung between a tailstock and an hr210 rotary . There are 5 parts on each side of the fixture. At one position I have to bore a hole and thread mill a boss on each of the 10 parts . Forgings are nice but not exact so each time I clamp a new batch of parts to the fixture I have to take my edge finder and set the y axis offset for each of the 10 parts individualy . I dont have the probe but am considering adding it if it could possibly cut this 10-15 minute procedure down to 5 minutes or less, I currently can run 12 setups a day and I am losing 2+ hours a day. Is it possible with the probe to write a little routine that will allow the machine to touch off in a paticular place on all 10 parts seperatley and enter the proper offsets in G154 P** automaticly ? The boss on the 10 individual parts is within .010" of the same place everytime . What would I need to do to have the machine run over touch off on part 1 , enter the Y offset in p58 , touch off on the next part enter the y offset in p59 , etc, rotate the a axis 180 and do the other 5 parts ? Would this be a situation where a macro would need to be written and if so would I need to have Macros activated to do this with the probe? Thanks for any help , I have no exp with a probe (alien or otherwise) other than the one on my big lathe that sets tool offsets

I am a CNC newbie but would be glad to send you the HAAS stuff on probing...manuals....examples..etc. Just drop me an email.

tim.cochrane@gmail.com

Tim

[Mohawk72]

That is one thing I find I truly love about the Haas Machines.

The probing is the best I have ever used on any machine, Bar None.

What you want to do is extremely easy on the Haas machine.

This is an early program of 4 parts that are castings and I have to probe every time they run. You know castings suck in a machine world. The core shift is always different from batch to batch and the foundry tolerance of +/- .030" is no where near what we want. So probing is the answer. I have other programs that probe 12 parts but this early one is easy to see.

%
O00005
( GUAG 1ST OP 8766 ONLY #3264-L R.27 REV. #5098 )
( PROGRAMED ON 12-29-2007 )
( PROVEN ON 01-28-08 )
( LAST RAN ON 03-18-09 )
( V14.1 POST FOR HAAS VF-5 IN CNC-2 )
( CYCLE TIME 7.38 )
N45 G10 L2 P1 X-22.533 Y-17.2665 Z-18.59 ( G54 )
( CO-ORDINATE G54 = LOWER LEFT )
N55 G10 L2 P2 X-15.9117 Y-17.2978 Z-18.59 ( G55 )
( CO-ORDINATE G55 = LOWER RIGHT )
N65 G10 L2 P3 X-19.2762 Y-8.5721 Z-18.59 ( G56 )
( CO-ORDINATE G56 = UPPER LEFT )
N75 G10 L2 P4 X-12.4159 Y-8.5726 Z-18.59 ( G57 )
( CO-ORDINATE G57 = UPPER RIGHT )
()
N130 G00 G17 G40 G80 G90 G94 G98
N140 T2 M06 ( Renishaw Probe set at Tool 2 rather than Tool 1 )
N145 G54 X0. Y0. T17 ( moving to my old G54 Position )
N150 G43 H02
N155 Z0.5
N160 G65 P9023 A2. D3.6 S54. Z-0.7 (Probe and sets G54 Register)
N165 G55 X0. Y0.
N170 G43 H02
N175 Z0.5
N180 G65 P9023 A2. D3.6 S55. Z-0.7
N185 G56 X0. Y0.
N190 G43 H02
N195 Z0.5
N200 G65 P9023 A2. D3.6 S56. Z-0.7
N205 G57 X0. Y0.
N210 G43 H02
N215 Z0.5
N220 G65 P9023 A2. D3.6 S57. Z-0.7
N225 G80 M01

Hope this helps you out.

Mohawk

[extanker59]

Cool.
I like this way because I'm afraid of hurting the probe so I use protected moves but still in the macros that came with the machine.

O00426 (MILL FLUTES 10942A )
G00 G17 G20 G40 G49 G90 G98 G94

N25 (PROBE)
T25 M06
G00 G90 G154 P01 X0 Y0 A0 M05
G43 H25 Z3. T22

G65 P9832
G65 P9810 Z.5 F100.
G65 P9023 A2. S110. Z-.7

G65 P9832
G65 P9810 G111 X0 Y0 F100.
G65 P9023 A2. S111. Z-.7

G65 P9832
G65 P9810 G112 X0 Y0 F100.
G65 P9023 A2. S112. Z-.7

G00 Z3.
G53 Y0 Z0
M01


N16 (1/4 4 FLUTE CRB EM)
T16 M06
G00 G154 P1 X0.9555 Y0.33 A0. S2291 M03
ETC....

Some here can program directly in the macros but I'm not there yet. My macros are simple ones, just rotating the 4th axis or pecking drills.

BTW: I got this far because of help I recieved here on this forum.

[panaceabea]

I really wish I had ordered the probe with the machine , I will be adding it in a few weeks when I get caught up from the expense of setting up the new machine

[facegarden]

Yeah, i just set up a protected move and zero cycle to re-zero 4 parts at a time in a fixture, it works great! We used to avoid fixtures like that because the part weren't repeatable to within more than a few thou between clampings, but with the probe it doesn't matter!
-Taylor

[DRD]

The probing on the Haas macines is just down right awesome.
I use the probing daily, to set offset on engine parts we machine.
On top of the probing of parts, we are a cylinder head shop, and probe head ports, in 5 axis mode, to get excate port data on on ports.
I would be lost with out the probe for sure.