Tormach PCNC 440 - Tool Holders

Chapter 4
40
UM10372_PCNC440_Manual_0221A
OPERATiON
4.5 Tool Holders
This secon describes using tooling compable with the standard R8 spindle. For more informaon
on other spindle opons, refer to the product-specic documentaon.
The Tormach Tooling System (TTS
®
) is the recommended tool holding method for PCNC mills. The
advantages of TTS over other tooling opons include:
• Exact tool oset repeatability
• Easily adaptable to tool preseng techniques
• Quickest manual tool change me
• Shortest tool change clearance distance
• Compability with Tormach power drawbar and Tormach automac tool changer (ATC)
TTS uses a precision 3/4” collet in combinaon with a drawbar and interchangeable TTS tool holders.
Many dierent TTS tool holders are available.
4.5.1 Install Drawbar and TTS Collet
1. Idenfy drawbar and drawbar bushing, located in the included tool box removed from the
shipping pallet in chapter 3, Installaon.
2. Using a clean rag, apply a degreasing agent to the inside taper of the spindle and the enre
surface of TTS collet. Wipe clean and dry.
3. Apply a small amount of An-seize (PN 31273) grease to:
• Drawbar threads
• Outside taper of TTS collet
NOTE: Do not apply grease to the inside surface of the TTS collet.
• Inside taper of R8 spindle
4. Open the spindle door.
5. Swing the spindle lock so it engages with the ats on the top of the spindle. If necessary, turn
the spindle by hand unl the ats line up.
6. Place drawbar bushing on top of the spindle.
7. Using one hand, insert the TTS collet into the boom of the spindle.
8. Twist the collet while applying light upward pressure unl the collet groove aligns with the
spindle alignment pin; the collet is pushed completely inside the spindle taper.
9. Using your other hand, insert the drawbar into the drawbar bushing installed in Step 6; rotate
the drawbar to engage several threads in the TTS collet.
10. Place and hold a TTS tool holder inside the TTS collet and against the spindle nose. Using a
13 mm wrench, rotate the drawbar and ghten the collet against the TTS tool holder.