| 摘要 |
#CMT# #/CMT# The tool has a machining section and a cylindrical shaft, in which an internal coolant and a lubricant duct (468) with an orifice are formed. The shaft has a clamping section and a side of a support section for an attachment to a connection piece (412) provided in the shaft is turned away from the processing section. The support section has a shape of conical fitting surface (470), which extends radially inwards such that the surface engages the orifice. The surface is processed on a joint fitting with the connection piece such that a sealing surface is radially formed outside the orifice. #CMT# : #/CMT# An independent claim is also included for a cut surface between a shaft tool and an injection position of coolant and lubricants. #CMT#USE : #/CMT# Shaft tool e.g. boring cutting tool, milling cutting tool, grinding cutting tool and threaded shape cutting tool, used in a collet chuck e.g. hydro extensible collet chuck and shrinkage collet chuck. #CMT#ADVANTAGE : #/CMT# The support section has the shape of conical fitting surface, which radially extends inwards such that the surface engages the orifice, thus effectively increasing the contact and sealing surface to the lubricant injection unit without drastically increasing the manufacturing process of the tool. The conical fitting surface is processed on the joint fitting with the connection piece such that the sealing surface is formed radially outside the orifice, thus avoiding the leaking from the coolant and lubricants in the clamping section of the tool packing piece or in a cold self-adhesive (KSK) internal space. The tool makes possible to simply handle a connection between the tool and the coolant and lubricant operating part, so that a geometric configuration is simple, thus achieving a desired lubricant portion in a required quality, and ensuring economical manufacturing of the tool and the components of the lubricant injection interface. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic side view of a pivotably driven shaft tool. 412 : Connection piece 414 : Slit part 468 : Coolant and lubricant duct 470 : Conical fitting surface 474 : Slit. |
