● CNC-450 About Z axis ballscrew and screw chip conveyor
Ans:
- As for the Z axis ball screws for Ram direct driving , Usually the slotting force from 800 kgs – 2000 (2500) kgs , So the Z axis axial force must heavy and can be resistance slotting impact capability ,
Usually CNC machining center ball screw axial load only 5000-6000kgs, It is easy damaged for slotting processing , So We adopt 30000 kgs super load (over 15 safety factor) , It’s for safe if Z axis happen crush accident , the Z axis ball screw still OK.
due to the large safety factor design , we send you some Z axis ball screw data for your reference. (Ball screw brand is HIWIN ). ** See attached drawings. As for slotting force , We think the CNC-450 which force is no problem , Our Italy customer test 22mm keyway , The Z axis servo motor is under 10-30% only , Please understand that keyway slotting most important is Slotting bar rigidity and cutter feature (Hardness etc..),
If you have super cutter and super rigid slotting bar ( Normally L/D<5) , If you use very big diameter and short length slotting bar , The L/D<3 , The slotting bar rigid is good , then you need to have super cutter which can cut 27mm width keyway easily ,
Sometime is your work-piece which hardness too hard , Your cutter is impossible or very hard to cut the keyway , Then cause cutter broken , It’s not cause by machine less power , It’s relate to principles of physical cutting . Some time how to sharpen the cutter is also very important . - Y axis slide way cover which mean Y axis double V slide way complete with protective plastic cover as CNC-350
- Regarding the adjustment distance of Ram connector , This function is similar to CNC-350 which for adjust top and bottom position purpose , But now CNC-450 which drive by ball screw , the Ram connector will not need to adjust often , We keep the function is for sometime if you Have very high work piece , You maybe need to adjust the Ram top position higher , Then you can adjust it manually.(refer to attached pdf photos.)
- Option: screw chip conveyor: Please see attached photo/drawing.
- Slotting bar fixture: please refer to attached drawing.