Title:
孔内面切削装置及び方法
Document Type and Number:
Japanese Patent JP6791369
Kind Code:
B2
Abstract:
A hole inner-surface cutting apparatus (1) includes a working head (20) composed of a rotatable body (20b) having a cutting tool (20c) and a main body (20a), a rotation rod (41) for rotating the rotatable body (20b), and a stroke rod (31) for stroking the working head (20). At least three positioning mechanisms (22A-22C) for positioning the working head (20) along a radial direction in the penetrating hole is provided on the main body (20a). Each of the positioning mechanisms (22A-22C) has three sliders (25) arranged radially, guide rollers (26) respectively disposed on distal ends of the sliders (25), a piston (23) for pressing the sliders (25) radially outward, and a fluid pressure chamber (24) for actuating the piston (23). Further provided is a controller for controlling fluid pressures in the fluid pressure chambers (24) of the positioning mechanisms (22A-22C) independently from each other.
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Inventors:
Akiyuki Nishitani
Toda Michiko
Yoshiki Iru
Nakanishi Akira
Toda Michiko
Yoshiki Iru
Nakanishi Akira
Application Number:
JP2019512384A
Publication Date:
November 25, 2020
Filing Date:
March 07, 2018
Export Citation:
Assignee:
Ihi Co., Ltd.
International Classes:
B23B49/00; B23B41/02
Domestic Patent References:
| JP2009241249A | ||||
| JP6009814U | ||||
| JP2016163913A | ||||
| JP2013007224A | ||||
| JP2000246593A |
Foreign References:
| US5062187 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu
Shunichi Takahashi
Masakazu Ito
Toshio Takamatsu