ATC - Auto tool change - tổng hợp tài liệu từ internet

[CKD]

Tiếp tục nào http://www.cnczone.com/forums/vertic...e-project.html

With the lower bearing seat done I brought the OD to its final dimensions 90mm and 125mm for the flange:


I then made a "plug" that fits in the bore for the lower bearings so that I shouldn't deform the bore when clamping it in the chuck. Then I indicated it as true as I could. I got it to within 0.01mm:


Then I machined off the excess material and made the bore for the top bearing. The live center wasn't big enough to fit in the 62mm bore for the top bearing so I made another plug to use as support while maching the rest of the OD down from 125mm to 90mm:


When I was ready to finish the top end I found that the fit between the top "plug" and bore was a little too tight so I had to remove the whole setup from the lathe in order to remove the plug. When resetting it up I didn't tighten the the chuck enough (I was affraid to deform the lower bearing bore)and the whole housing came loose while finishing off the top end....ouch... It seems to be OK though, time will tell. (You can see the dents from the jaws in the photo)