JPS61163105U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案に係る内張りチヤツク装置の斜
視図、第２図は同様の縦断面図であり、右半分は
被加工物をチヤツキングした図面で、左半分はチ
ヤツキング前の図面、第３図イ，ロは従来の内張
りチヤツク装置を用いて車輪をチヤツキングした
状態を示す説明図である。 ５は内張りチヤツク装置、６はチヤツク本体、
７は爪、８は竪軸、９は案内溝、１５，１７は傾
斜面、１６は拡径部材、１９はスプリング。 Fig. 1 is a perspective view of the lining chuck device according to the present invention, Fig. 2 is a similar vertical sectional view, the right half is a drawing with the workpiece being chucked, the left half is a drawing before chucking, and Fig. 3 A and B are explanatory diagrams showing a state in which a wheel is chucked using a conventional lining chuck device. 5 is the inner chuck device, 6 is the chuck body,
7 is a pawl, 8 is a vertical shaft, 9 is a guide groove, 15 and 17 are inclined surfaces, 16 is a diameter expanding member, and 19 is a spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] チヤツク本体の上面に設けられた放射状の案内
溝に、移動可能な如く嵌合された適数の爪によつ
て被加工物を内面から内張り保持するチヤツク装
置において、前記チヤツク本体の中心に、その上
端に前記爪と対向する位置に下窄まり状の傾斜面
を形成してなる拡径部材を装着した竪軸を、上下
動可能に貫通配置すると共に、その高さを大きく
した爪の内周部には前記拡径部材の傾斜面に合致
する傾斜面を設け、更に前記案内溝と爪間には、
該爪の傾斜面を拡径部材の傾斜面に常時接触させ
るためのスプリングを介装したことを特徴とする
内張りチヤツク装置。 In a chuck device that holds a workpiece from the inside by a suitable number of claws that are movably fitted into radial guide grooves provided on the upper surface of the chuck body, a The inner periphery of the claw has a vertical shaft fitted with a diameter-expanding member having a downward converging inclined surface formed at a position facing the claw at the upper end so as to be movable up and down, and the height of the shaft is increased. The part is provided with an inclined surface that matches the inclined surface of the diameter expanding member, and further between the guide groove and the pawl,
A lining chuck device characterized in that a spring is interposed to bring the sloped surface of the pawl into constant contact with the sloped surface of the diameter-expanding member.