Title:
精密ロール旋盤の自動工具交換装置
Document Type and Number:
Japanese Patent JP5539012
Kind Code:
B2
Abstract:
There is provided an automatic tool changer which, in a precision roll turning lathe which feeds a tool post at a high speed, can automatically change a tool, such as a cutting tool, without stopping the machine, thereby enabling highly efficient ultra-Precision machining of a roll mold for molding of a large-sized plastic sheet. The automatic tool changer includes: a change device including a vertically movable pivot arm having a pivot axis and which pivots in a horizontal plane, a hand portion, mounted at the front end of the arm, for detachably gripping a tool holder, a pivot drive section for pivoting the pivot arm, and a lifting drive section for vertically moving the pivot arm; a tool holder stocker, having a plurality of circumferentially-arranged stages disposed at a predetermined distance from the pivot axis, each stage detachably holding a tool holder; a holder base, mounted to the tool post, for fixing and unfixing a tool holder through the rotation of a clamp shaft; and a clamp shaft operating device including an operating portion for clamping/unclamping the tool holder by rotating the clamp shaft.
Inventors:
Hiroshi Uchimura
Application Number:
JP2010112952A
Publication Date:
July 02, 2014
Filing Date:
May 17, 2010
Export Citation:
Assignee:
Toshiba Machine Co., Ltd.
International Classes:
B23Q3/155; B23B5/08
Domestic Patent References:
| JP61192437A | ||||
| JP63007425U | ||||
| JP2001105262A | ||||
| JP2009107066A |
Attorney, Agent or Firm:
Hirohito Katsunuma
Hiroyuki Nagai
Katsuomi Isogai
Satoshi Nazuka
Junpei Okada
Hideyuki Mori
Yukihiro Hotta
Hiroyuki Nagai
Katsuomi Isogai
Satoshi Nazuka
Junpei Okada
Hideyuki Mori
Yukihiro Hotta