| 号数 | ばね論文集４１号（１９９６年） |
| ページ数 | pp.39-46 |
| 種類 | 論文 |
| 論文名 | マルチカット法による密着コイルばねの連続同期切断 |
| Title | Synchronous Cutting of the Solid Springs with Multi-cut Method |
| 著者 | 伊藤 彰浩・今井 隆光・對馬 一憲・久納 孝彦 |
| Author | Akihiro ITOH・Takamitsu IMAI・Kazunori TSUSHIMA・Takahiko KUNOH |
| 抄録 | コイルばねの同期切断の生産性を向上するため，２枚の切断砥石を用いたマルチカット法によるコイルの連続同期切断機を開発し，切断実験を行った。生産性（砥石摩耗量と切断時間），ばねの作用特性（自由高さ，コイルばね外側面の傾き，研削やけ）および本法の同期切断に適当な研削条件を明らかにした。マルチカット法により，従来の１枚砥石方式に比べ，１個のばねの切断時間は約４０〜５０％減少し，加工精度は同レベルである |
| Abstract | Manufacturing the solid springs by a synchronous cutting machine with a sheet of
cut-off wheel, is available in respect of the working accuracy, but the process is not
practical in respect of the productivity in comparison with manufacturing the solid
springs by coiling machine. So we try to improve the above productivity by a multi-cut
method that the synchronous cutting machine cuts several springs simultaneously with
several sheets of cut-off wheel. As a result of this experiment, the productivity (i.e. volume of abrasive wear and cut-off time),the working characteristics of the solid springs (i.e. free height, inclination of coil outside face, burn mark and step), and cutting condition suited for synchronous cutting of the solid springs with multi-cut method were cleared. It was also cleared that the cut-off time for manufacturing one spring in case of two sheet of cut-off wheel(multi-cut method) decreased by approximately 40〜45% in comparison with that in case of a sheet of cut-off wheel while the working accuracy in case of two sheets of cut-off wheel was held the same level as that in case of a sheet of cut-off wheel. |
| 著者の所属 | 慶応義塾大学理工学部 |
| Belonging | Faculty of Science and Technology,KEIO University |
| Key Words | Coil spring, Cut-off wheel, End grinding, Working accuracy, Productivity |