TOOL HOLDER AND MACHINE TOOL

• Main Author: NOGUCHI KENJI
• Format: Patent
• Language: English; Japanese
• Published: 09.11.2015
• Subjects: BORING; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING; TURNING

PROBLEM TO BE SOLVED: To provide a tool holder which can be used even if an outer diameter of a shank of a tool is varied, and can effectively feed a cutting fluid to a processing region.SOLUTION: A tool holder 10 for holding a tool T used in a lathe 100 comprises: a sleeve 12; a collet chuck 14 for holding the tool by being fitted to the tip of the sleeve 12; and a fixing nut 16 for fastening and fixing the collet chuck 14. The fixing nut 16 comprises: a connector 22 which is a cutting fluid inlet provided in the side part; an orifice opening 21 which is at least one cutting fluid outlet for jetting the cutting fluid to a processing region; and a cutting fluid passage 18 for conducting the cutting fluid from the connector 22 to the orifice opening 21. 【課題】工具のシャンクの外径が変わっても使用可能で効果的に加工領域へ切削流体を供給可能な工具抱持具を提供すること。【解決手段】旋盤１００で用いられる工具Ｔを抱持する工具抱持具１０が、スリーブ１２と、スリーブ１２の先端部に嵌合し工具を抱持するコレットチャック１４と、コレットチャック１４を締付け固定する固定用ナット１６とを備え、固定用ナット１６は側部に設けられた切削流体入口である継手２２と、加工領域へ切削流体を噴射する少なくとも１つの切削流体出口であるオリフィス開口部２１と、継手２２からオリフィス開口部２１へ切削流体を導通する切削流体通路１８とを有する。【選択図】図１