Title:
CHATTER-PREVENTING STRUCTURE FOR WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/110681
Kind Code:
A1
Abstract:
The present invention makes it possible to maintain the balance of a rotating body with high precision while the rotating body rotates at high speed. A chatter-preventing structure (10) includes a housing member (28) that is fixed, with respect to a tool holder (20), to the outer periphery of the rear end portion of a tool attachment part (24), and rotates together with the tool holder (20). An annular damper chamber (34) is formed within the housing member (28) and accommodates a divided ring-like friction damper part (36) in a manner that allows orbital movement thereof, said ring-like friction damper part (36) absorbing, by sliding friction, vibration energy that contributes to chatter during machining of a workpiece (W).
Inventors:
KOMAI YASUHIRO (JP)
NAKAGAWA MASAKI (JP)
NAKAGAWA MASAKI (JP)
Application Number:
PCT/JP2017/045005
Publication Date:
June 21, 2018
Filing Date:
December 08, 2017
Export Citation:
Assignee:
NT ENGINEERING KK (JP)
International Classes:
B23B29/02; B23B27/00; B23Q11/00; F16F7/06; F16F15/129
Foreign References:
| JP2014091211A | 2014-05-19 | |||
| JP2001124106A | 2001-05-08 | |||
| JP2012057752A | 2012-03-22 | |||
| JPS6176251A | 1986-04-18 | |||
| JP2000291742A | 2000-10-20 | |||
| DE102009009212B3 | 2010-06-24 | |||
| US20040028487A1 | 2004-02-12 |
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