Title:
MACHINE TOOL
Document Type and Number:
WIPO Patent Application WO/2023/181638
Kind Code:
A1
Abstract:
[Problem] To make it possible to switch between causing a tool to turn and causing the tool to be fixed while the tool is held, and efficiently machine an internal wall section of a workpiece that has a void section and an opening. [Solution] A workpiece has a void section formed therein and an opening that communicates from the void section to the outside of the workpiece. This machine tool comprises a tool having a first portion that extends in a first direction, a second portion that extends from an end of the first portion in a second direction that crosses the first direction, and a cutting edge section that machines the inner wall section of the workpiece. The machine tool comprises a holding part that holds the first portion. The machine tool comprises a turning part that turns the holding part about an axis that is orthogonal to a plane parallel to the first direction and the second direction. The machine tool comprises a braking part that brakes the turning of the turning part. The turning part turns the holding part when the tool is inserted into the void section through the opening. The braking part brakes the turning by the turning part when machining the inner wall section.
Inventors:
WATANABE MASAYUKI (JP)
Application Number:
PCT/JP2023/002779
Publication Date:
September 28, 2023
Filing Date:
January 30, 2023
Export Citation:
Assignee:
MURATA MACHINERY LTD (JP)
International Classes:
B23B5/40; B23B29/03; B23B29/32
Foreign References:
| JP2001341013A | 2001-12-11 | |||
| JP2014087853A | 2014-05-15 | |||
| JP2007210062A | 2007-08-23 | |||
| CN108380914A | 2018-08-10 |
Attorney, Agent or Firm:
NISHI, Kazuya (JP)
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