Tool assembly, tool components and method of assemblying said components
AssigneeSandvik Aktiebolag
InventorsKen G. E. Andersson, Sven E. O. Engstrand, Lars G. sberg
Life of this patent
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Abstract
The invention relates to a tool assembly and a method of assembling the tool. The assembly comprises a machine spindle component and a tool component for chip removal. The spindle component comprises a central clamp and a central recess. The tool component has a central projection and a central threaded bore in its axially rear end. The seat and the projection comprise complementary, non-circular surfaces which are brought against each other during tightening of the clamp. The tightening of the clamp is terminated by the mutual abutment of a front surface of the spindle and an end surface of the tool. The cooperating non-circular surfaces receive moment forces arising during the use of the tool.
Claims13
Tool assembly comprising a first part and a second part, one of said parts comprising a toll or an adapter for a tool and the other of said parts comprising a holder, said first part having a truncated conical projection and a first support surface facing the second part, said second part comprising a conical recess in order to receive said projection and a second support surface for abutment against said first support surface, said assembly further comprising means for relative clamping of said first part against said second part, said assembly having a center line, characterized in that the projection and the seat comprise cooperating surfaces which are non-circular in cross-section and in that the projection or the recess is expansible.
The method of assembling tool components comprising a tool or an adapter and a holder comprises the steps of:
- providing the tool or the adapter and the holder with a support surfaces and male and female components so that a conical projection of the male component having a non-circular cross-section mates with a recess of the female component;
- providing means for forcing the tool or the adapter towards the holder;
- inserting said conical projection in said recess until said projection abuts said recess;
- and
- forcing said projection further into said recess thereby expanding said female component until said support surfaces of the male and female components stop further insertion so as to rigidly hold the tool or the adapter to the holder during machining operations.
Dependencies are inferred from the claim text.