CLAMPING DEVICE FOR A SPINDLE AND/OR ELECTRIC SPINDLE AND RELATED SPINDLE AND/OR ELECTRIC SPINDLE

摘要

The present invention concerns a clamping device (1) suited to be installed on a spindle shaft (102), comprising ball means (2) for locking/releasing a tool holder (T) and an element (10) suited to operate the locking/releasing ball means (2) provided with a duct (14) for delivering a coolant and/or lubricant (F). Said device comprises also a sealing element (15) suited to hydraulically connect the duct (14) to the duct (P) for discharging the fluid (F) present in the tool holder (T) when it is coupled to the device (1). The invention also concerns a related spindle and/or electric spindle.