WORK REST DEVICE OF CRANK SHAFT MIRROR

PROBLEM TO BE SOLVED: To provide a work rest device of a crank shaft mirror capable of supporting work with moderate clamping force without deforming the work, suppressing chattering vibrations during work machining, and omitting a rest lock mechanism which has been conventionally required to simpli...

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Bibliographic Details
Main Authors SHIMOMURA MASUMI, NAKAJIMA HIROSHI, ARIKABE TAKEO, WAKABAYASHI NOBUYUKI
Format Patent
LanguageEnglish
Japanese
Published 07.01.2016
Subjects
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
MILLING
PERFORMING OPERATIONS
TRANSPORTING
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Summary:PROBLEM TO BE SOLVED: To provide a work rest device of a crank shaft mirror capable of supporting work with moderate clamping force without deforming the work, suppressing chattering vibrations during work machining, and omitting a rest lock mechanism which has been conventionally required to simplify a structure.SOLUTION: In a work rest device 20, a pair of rest arms 26 and 27 is supported by rest arm supporting shafts 24 and 25 at upper parts, rotated in a lateral direction across a crank shaft 15 from the supporting shafts 24 and 25 so as to freely open and close, and energized in a closing direction by self-weight. When the pair of the rest arms 26 and 27 clamps a journal portion 15a of a crank shaft 15 to support, a viscoelastic body 37 is interposed between the journal portion 15a and the pair of the rest arms 26 and 27. 【課題】ワークを変形させることなく適度なクランプ力で支持することができるとともに、ワーク加工時のびびり振動を抑制することができ、従来は必要とされたレストロック機構を省略できて構造の簡易化を図ることができるクランクシャフトミラーのワークレスト装置を提供する。【解決手段】ワークレスト装置２０において、一対のレストアーム２６，２７は、それぞれの上部がレストアーム支軸２４，２５によって支持され、各支軸２４，２５を支点にクランクシャフト１５を挟んで左右方向に回動されて相互に開閉自在で自重により閉方向に付勢されており、一対のレストアーム２６，２７でクランクシャフト１５のジャーナル部１５ａをクランプして支持する際にそのジャーナル部１５ａとの間に粘弾性体３７が介在されるようにする。【選択図】図３
Bibliography:Application Number: JP20140121107