Hi guys,
I’m really new to the CNC world here. I recently bought a BT30 ATC spindle from aliexpress and I’m really struggling to understand how it works. The seller has been really hard to get help from, but did supply me with a picture of a machine using the spindle. I mainly just don’t understand how the drawbar/tool changing works. I know it is pneumatic, I know it needs ~100psi to operate, and I know the top of the spindle is not stationary when the machine is running so I can’t directly connect an air hose (if that’s even what I need…).
Can someone help me understand what exactly I need to be able to change tooling? At this point I realize I’m in way over my head. I figured if I had it in my hands I’d be able to figure it out, but that is clearly not the case. Any help would be much appreciated.
From the seller: “ This is a belt spindle with an external cylinder. The cylinder is pressed down, the claw stretches out and loosens, the air source pressure,
500kpa-800kpa”
Listing:
https://www.aliexpress.com/item/1005...89676531%22%7D
Picture from seller of pneumatic cylinder above the spindle?:
https://ae02.alicdn.com/kf/Hc03de4f0...5066f5000k.png