Assemblying and disassemblying arbor for cutting knife tool

Application Number: 00108009
Application Date: 2000.06.07
Publication Number: 1277089
Publication Date: 2000.12.20
Priority Information: 1999/6/9 SE 9902157-8
International: B23B29/04;B23Q3/12
Applicant(s) Name: Sandvik AB
Inventor(s) Name: Ands. Scoug
Patent Agency Code: 72002
Patent Agent: wu jingbei
Abstract This invention relates to a holder for detachable assembly of cuffing tools. A clamping mechanism, which includes a piston device (14), is included in the holder. It is axially movable thanks to a piston (16), which is subjected to oil pressure on either of two opposite sides. A projection (17) with a cone surface (33) with a moderate cone angle is also included in the piston, which projection is arranged to co-operate with a wedge body (31), which should be able to be locked in relation to the cone surface in self-locking way. In order to guarantee such self-locking, a number of transverse grooves (40) are provided in the cone surface (33) via which grooves oil may be evacuated from the interface between the cone surface (33) and an inner, partially cone-shaped surface (36) on the wedge body (31).