Jig angle head expert look at my PICTURE please!

[memberengt]

Hello

thank you for entering in my post

I'm running this cnc milling for a company of 500 employees

As you can see on my picture we have this raised jig, I asked to my manager and also to an engineering of my shift about this 245mm platform to raise this jig and nobody could give me a good reason why they made this platform

From the lowest operation to Z limit minus (as you can see on the picture) we have 250mm so we don't need that 245mm platform, perhaps we need it only 10mm or 20mm higher just to be sure that the angle head reach the lowest operation

How close we could work to Z limit minus?

If I can take this platform out we may ruduce the operation by 2 tools.
As you can see on the top of the engine case we have a sump rail that is the very top part and the cap-face that is that bottom in the middle of the case (signed in black). We are doing the roughing-out and finishing with 4 tools to reach the cap-face because otherwise we get Z limit plus if we use the same tools as for roughing-out and finishing, but if we take the platform out we could use only 2 tools.

The finished depth between the sumprail and the cap-face is 210mm so if we use the same tools with their enough lenght of 220mm, (in addition I don't understand why they made these 2 tools 250mm long) we should be able to do this 2 operations, roughing-out and finisching cap-face, with only 2 tools

Do you like my idea? Are you agree with me that that platform is an engineering manufacturing mistakes?

Any suggestion according it will be very appreciated

thank you in advance for your help

http://files.engineering.com/getfil...5c-8310-3492edabc3ad&file=Jig_angle_head_.jpg

 

[memberengt]

I put this link from a different engineering forum because I can't upload my picture, so please to see my picture clik on this link

http://www.mycncuk.com/forums/showt...-look-at-my-PICTURE-please!?p=33013#post33013

 

[BillPSU]

The riser moved the position of the part higher in the machining envelope. The machine ram will not have to extend as far with the riser meaning more rigidity in the setup. The rigidity change may not be of consequence but I wanted to note the change.
If you remove the riser verify that the not only the machining centerline meets the lowest position but also that the spindle carrier casting on the end of the ram does not interfere with the table top. I am not familiar with the machine shown but travels of many machines allow the machine not to reach travel limits in certain conditions.

You may also want to verify the direction of cutting with the larger mills to always apply machining pressure downward into the table top instead of milling with the pressure being being upward thus be resisted by the hold down clamps.

Good Luck,
Bill

 

[hydromarine]

You dont mention what machine you are using or if the present set up is achieving the production rate.Is the surface finish affected with this set up
If by removing this platform you can improve the production rate then your production department should listen to you .
Unfortunately at some stage some one designed this platform and to implement the changes you suggest could be costly unless you can justify its change out.