Haas bar feeder problem

[cnc1968]

Hi all,
What a nightmare of a week for us. We are trying to get new machine shop up and running with all Haas equipment and having nothing but issues with all our machines. Maybe some of you out there can help solve a few of these problems, as our local support isnt that great.

1/ St10 with Royal collets.......barfeeder push rod not long enough and we end up with a 3 inch remnant at full push capacity, due to collets being longer than chick.

2/ St10.....Bar feeder liner extension sticks out the back of the machine, past the coolant catcher. This causes coolant to fly out of the spindle when spinning.

3/ DS330 SSY with barfeeder.....barfeeder is a "v" axis on the control, but an incremental move for the "y" axis is also a "v". We have been told by Haas that our machine configuration is not 100% compatable with the barfeeder.

I have been told that we can purchase a pneumatic extension add on for the bar feeders (added expense). Any other ideas?

Thanks

[txcncman]

1) Make a new, longer push rod or an adapter for the push rod

2) Cut the liner off to the correct length

3) See if bar feed control can be changed to accept a different code

[cnc1968]

Push rod is as long as it can be without coming down on top of the material. So making a longer one or adapter is out of the question.

Cutting liner means there is not enough support between the bar feeder and lathe for material.

Tried bar control with no success.

According to Haas there is only one other company worldwide with the same machine configuration and they are having the same issues. Haas is working on it for a solution, but not expecting it to be sorted soon.

[txcncman]

Without actually seeing your installation it is difficult to impossible to make additional suggestions. If you have the spindle liner sticking out of the spindle at least 3 inches and you say the push rod (stroke) is 3 inches short, sounds like you need to move the bar feeder 3 inches closer to the spindle and cut the liner off.

[cnc1968]

Unfortunately there is a steel floor template that puts the barfeeder where it should be. I have a tech guy coming on Monday to try and sort out the problem, but he has visited before and is not that familiar with the barfeed.

[Stickerman]

On the DS30 we had the same issues. The manual says to have the bar feeder 2" from the coolant collector which is wrong. Move it as close to the machine as possible.

There is a special command to allow you to command the V axis, but I don't have that info here at the house.

[txcncman]

Unfortunately there is a steel floor template that puts the barfeeder where it should be. I have a tech guy coming on Monday to try and sort out the problem, but he has visited before and is not that familiar with the barfeed.

Fortunately, the engineers that design most things are not as smart as the people that use their products the most, allowing us a world of modifications to experiment with. I have seen barfeeders mounted on rails on the floors so they could be moved away from the machine for loading and maintenance then moved back to the machine and locked into place for operation. Since the sellers of the equipment can't even tell you how to make it work, I think it is time to get your thinking cap on.

[gizmo_454]

As someone in these forums once said, this is useless without some pictures. Or something like that.


Mike

[haastec]

Unfortunately there is a steel floor template that puts the barfeeder where it should be. I have a tech guy coming on Monday to try and sort out the problem, but he has visited before and is not that familiar with the barfeed.

Does the template have multiple holes for different machines? Is it installed in the correct position for your machine?

Just a thought.

+1 on the pictures.

[KenFoulks]

1/ St10 with Royal collets.......barfeeder push rod not long enough and we end up with a 3 inch remnant at full push capacity, due to collets being longer than chick.

+1 Check the barfeeder is in the correct location. Measure the distance to collet face, remove collet nose and measure the push rod's stick out distance. Make sure there is no area in the nose where the push rod could "bottom out."

2/ St10.....Bar feeder liner extension sticks out the back of the machine, past the coolant catcher. This causes coolant to fly out of the spindle when spinning.

Order a 93-1981A from your HFO.

3/ DS330 SSY with barfeeder.....barfeeder is a "v" axis on the control, but an incremental move for the "y" axis is also a "v".

Because V is also an incremental Y-axis movement on our DS-30SSY, if it is used to move the bar feeder a G160 must be used. This lets the control know that the “V” is for the barfeeder, and not the Y-axis on the lathe. When done, a G161 must be called to go back to the default condition. In most cases, if you wanted to move the bar 1in to the right, you would command a G105 J1.0.



When Single Blocking through a program, you often have to use the Setup Key on the side of the control. This is especially true when doing a setup involving the bar feeder, or when you need to clamp/unclamp the chucks within a program.

You can download the latest barfeeder manual here: http://www.haascnc.com/doclib/manual/96-0013.pdf