To provide a burring device which molds two facing cylindrical flanges.SOLUTION: A burring device (100) includes a first die (1), a second die (2), a first support shaft (6), a second support shaft (7), a first elastic member (8), a second elastic member (9), a cam member (3), a first punch (4), and a second punch. The first die (1) includes a first semi-cylinder recessed surface (11) and is rotatably supported by the first support shaft (6) and the first elastic member (8). The second die (2) is disposed adjacent to the first die (1), includes a second semi-cylinder recessed surface (21) and a lever part (22) protruding beyond the first die (1) to the side, and is rotatably supported by the second support shaft (7) and the second elastic member (9). The cam member (3) holds a state that the first semi-cylinder recessed surface (11) and the second semi-cylinder recessed surface (21) are closest to each other and define a cylindrical hole at an end of its downward movement. The first punch (4) and the second punch are provided so as to be insertable into the cylindrical hole.SELECTED DRAWING: Figure 4
【課題】対向する2つの円筒フランジを成形するバーリング装置を提供する。【解決手段】バーリング装置(100)は第1ダイ(1)と第2ダイ(2)と第1支軸(6)と第2支軸(7)と第1弾性部材(8)と第2弾性部材(9)とカム部材(3)と第1パンチ(4)と第2パンチとを備える。第1ダイ(1)は第1半円筒凹面(11)を含み、第1支軸(6)及び第1弾性部材(8)により回動可能に支持される。第2ダイ(2)は第1ダイ(1)に隣接して配置され、第2半円筒凹面(21)と第1ダイ(1)を越えて側方に突出するレバー部(22)とを含み、第2支軸(7)及び第2弾性部材(9)により回動可能に支持される。カム部材(3)は、下向きの移動の終端において第1半円筒凹面(11)と第2半円筒凹面(21)とを最接近させて円筒孔を画定した状態に保持する。第1パンチ(4)及び第2パンチは円筒孔に挿入可能に設けられる。【選択図】図4
BURRING DEVICE AND BURRING METHOD
バーリング装置及びバーリング方法
2024-12-19
Patent
Electronic Resource
Japanese
IPC: | B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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