HSD ES939 - Tool-Holder Locking and Expulsion

HSD
5801H0056 _______________________________________________________________ 89/181
6.4.1 Technical characteristics of the electric fan
Power supply
230 ± 10%
V AC
Frequency 50 Hz 60 Hz
Input power 45 W 39 W
6.5 TOOL-HOLDER LOCKING AND EXPULSION DEVICE
The blocking and expulsion of the tool-holder is carried out by the single-acting movement of a
pneumatic piston, activated with compressed air.
The tool-holder is mechanically blocked with elastic springs.
electrospindle
model
axial force
on the tool-holder
expulsion of the tool-holder
cone
ISO30 3200 N ± 10% 0.5 - 0.9mm
HSK F63/E50 11000 N ± 10% 0.5 - 0.6mm
HSK E40/F50 6800 N ± 10% 0.5 - 0.6mm
HSK E63/F80 18000 N ± 10% 0.5 - 0.6mm
i
The axial force exerted on the tool-holder by the blocking system is guaranteed constant
for a minimum duration of 2,000,000 cycles of tool change
1 tool change cycle = tool blocked / tool released / tool blocked
i
All HSD electrospindles have a mechanical reaction system that neutralises the axial
force of the piston on the shaft during the tool changing phase, guaranteeing the integrity
of the precision bearings.
6.6 TOOL-HOLDER CONE
Figure
6.1
CONE ISO30
DIN69871
HSD TIE-ROD
0804H0009
Figure
6.2
HSK DIN69893 CONE
• The geometry of the conicity must respect standard DIN69871 for ISO30 cones, and standard
DIN69893 for HSK cones.
• The tool-holder cone ISO30 must have an AT3 precision rating;
• Avoid the presence of plugs, slots, or other forms affecting the dynamic balancing of the tool-
holder;
• At the maximum rated speed of the electrospindle, the level of dynamic balancing must be G =
2.5 or better (ISO1940 standard);
• The balancing must be carried out with the tool-holder assembled (cone, mill collet, ring nut,
tool);
• The tie-rod (also known as the shank) of the cone ISO30 must only be the one supplied by
HSD (code 0804H0009).