[rajeshtikar]

Hi


We are the user of Mori seiki Horizontal machining center NH6300dcg. We have taken cylindrical interpolation option to machine the cam proffile on od. we have tried this but couldn't succed

can anybody help me to How to use cylindrical interpolation on HMC.

If possible please post an example

[Mitsui Seiki]

Are you talking about circular or helical interpolation?
What exactly are you trying to do?

[rajeshtikar]

Definately, I am talking about only Cylindrical interpolation ON HMC

[Mitsui Seiki]

You have to use the B-axis the same way you use X,Y.

Straight run:
G1Z-1F100
Y-10
B(Degrees to turn)


Diagonal run:
G1Z-1F100
Y10B(Degrees to turn)

[the thrill]

you have to use G107... the information should be in the fanuc operator manual

[rajeshtikar]

I had tried G107 & the information given intthe fanuc manual but i am not able to use this faunction.

please find below the sample program i had tried on the machine but could not succed


O5555(CYLINDRICAL INTERPOLATION TRIAL PROGRAM)
G65P8000X0.Y209.933Z90.B0W3
T30M6 ( end mill dia. 10 mm )
M11
G56
G17
G0G90X-30.Y120.B0.S2000F250M3
G43H30Z100.
Z5.0
G07.1
G1G42
G1X0Y120.D30 (5.0)
G01Z-0.5
G1B30.
G2Y90.B60.R30.
G1Y70.
G3Y60.B70.R10.
G1B150.
G3Y70.B190.R75.
G1Y110.B230.
G2Y120.B270.R75.
G1B360.
G1G40X-30.Y120.
G07.1B0.
M98P98(sub program for home position)
M10
M30

[rajeshtikar]

i had tried the G107 & the information give in the Fanuc Manual but could not secessded

pl find below the sample program i had tried on the machine


O5555(CYLINDRICAL INTERPOLATION TRIAL PROGRAM)
G65P8000X0.Y209.933Z90.B0W3
T30M6 ( end mill dia. 10 mm )
M11
G56
G17
G0G90X-30.Y120.B0.S2000F250M3
G43H30Z100.
Z5.0
G07.1
G1G42
G1X0Y120.D30 (5.0)
G01Z-0.5
G1B30.
G2Y90.B60.R30.
G1Y70.
G3Y60.B70.R10.
G1B150.
G3Y70.B190.R75.
G1Y110.B230.
G2Y120.B270.R75.
G1B360.
G1G40X-30.Y120.
G07.1B0.
M98P98(sub program for home position)
M10
M30
%

[Andre' B]

I had tried G107 & the information given intthe fanuc manual but i am not able to use this faunction.

please find below the sample program i had tried on the machine but could not succed

You will get better answers if you give some detail.
As why did it not work.
What did the machine do or not do.
What did you want the machine to do.
How far into the program did it get.


I have on other machines done stuff like this.
Do up the CAD model in flat.
Then scale model so that the direction that is to be wrapped is 360 units long, leave the other direction the size you want it to be.
Looks like you are using Y and B axies so make the 360 unit length the X axis.
Now run thru the CAM software just like you were doing a flat part.
Edit the G code and replace the X with B. The machine I was doing this on was just a home hobby class machine and only had 3 axies so I just unplugged the X axis and plugged in the rotary.

[big_mak]

Looking at your print out you have G07.1 Not G107.1

Could that be it????

[rajeshtikar]

[quote=Andre' B;356125]You will get better answers if you give some detail.
why did it not work.
What did the machine do or not do.
What did you want the machine to do.
How far into the program did it get.


Machine is generating P/S 20 alarm - overtolerence of Radius if we adjust the parameter 3410 value from 0.01 to 10. it will run the program but it will not compensate & overcutting happens.

We can run the CAM program (absolute programming) on machine

We dont want to use CAM Program because we have lot of variety of components

We want to use standard program with cutter compensation

[Mitsui Seiki]

Try this if it's possible to do it.You have X0 Y120 and then you have G42 and the same Y value.I think you need to have a Y value before G42 that is big enough to fit the cutter radius.The difference between the first Y value and the second one has to be bigger than the cutter radius.

O5555(CYLINDRICAL INTERPOLATION TRIAL PROGRAM) 
G65P8000X0.Y209.933Z90.B0W3
T30M6 ( end mill dia. 10 mm )
M11
G56
G17
G0G90X-30.Y140.B0.S2000F250M3 
G43H30Z100.
Z5.0 
G07.1
G1G42D30 (5.0)
G1X0Y120.  
G01Z-0.5 
G1B30. 
G2Y90.B60.R30. 
G1Y70. 
G3Y60.B70.R10. 
G1B150.
G3Y70.B190.R75.
G1Y110.B230. 
G2Y120.B270.R75. 
G1B360.
G1G40X-30.Y120.
G07.1B0. 
M98P98(sub program for home position) 
M10
M30
%

[M-man]

there are stuff missing at start up of the interpolation, check the manual a bit closer and you will find it.

[22/7]

"You will get better answers if you give some detail."

You will get better answers if you come across someone who can program.

Here is a simple sample I wrote for you.
This program starts at B0 Y0 Z2.5 (5" diameter part) and does a 1" radius at 90 degrees and the continues along it's merry way to B360. Yes, this is a proven program.

Ready? Here goes:


%
O0005(C AXIS TEST)
G0G91G28Z0
T36
M6
M11
G0G90G54X0Y5.B0M3S600 (Start at B0 Y0.)
G43 H36 Z10.
G1 Z2.5 F50. (5" diameter)
G91G17Y0B0 (specifies your programmed arc plane. B substituted for X in G17)
(notice G91 to prevent actual movement)
G107B2.5 (turn on G107/7.1 and calculate profile on 2.5 radius part***important***)
G90G1B67.0821F30.(start of 1" radius at 90 degrees)
G2Y5.B112.9187R1.(end of 1" radius at 90 degrees)
G1B360.
G0Z10.
G107B0. (Turn off G107/7.1)
M30

Special notice***
in order for this to work set parameter 1022 as follows:
x=1
y=2
z=3
b=1

this sets the substituted axis as X for calculating radii in G17 plane.