JPS6168861U

JPS6168861U -

Info

Publication number: JPS6168861U
Application number: JP1984154828U
Authority: JP
Priority date: 1984-10-11
Filing date: 1984-10-11
Publication date: 1986-05-12

Description

[Brief explanation of the drawing]

第１図〜第４図はこの考案の一実施例を示し、
第１図はカムロツクドライブ装置の正面図（但し
押え板を除いて示す。）第２図は第１図の−
線断面図、第３図は第１図のカム板の一部拡大作
用説明図、第４図はカムロツクドライブ装置を取
りつけた研削盤の一部を示す図（一部断面図を示
す）、第５図〜第７図は従来のカムロツクドライ
ブ装置を示し、第５図はその正面図、第６図は第
５図の−線断面図、第７図はロツク爪の作用
説明図である。１…面板、１ａ…小軸穴、１ｂ…軸穴、２…ラ
チエツトホイール、８…ローラ、９…カム板、１
０…カム穴、１１…カム面、１３…カム駆動棒、
１７…引張りばね、１９…主軸台、２１…主軸セ
ンター、２２…心押しセンター、Ｗ…ワーク。 Figures 1 to 4 show an embodiment of this invention,
Figure 1 is a front view of the cam lock drive device (however, the holding plate is excluded). Figure 2 is the same figure as shown in Figure 1.
3 is a partially enlarged explanatory view of the cam plate in FIG. 1; FIG. 4 is a diagram showing a part of the grinding machine equipped with the cam lock drive device (partial sectional view is shown); 5 to 7 show a conventional cam lock drive device, FIG. 5 is a front view thereof, FIG. 6 is a sectional view taken along the line -- in FIG. 5, and FIG. 7 is an explanatory diagram of the action of the lock claw. . 1...Face plate, 1a...Small shaft hole, 1b...Shaft hole, 2...Ratchet wheel, 8...Roller, 9...Cam plate, 1
0...Cam hole, 11...Cam surface, 13...Cam drive rod,
17... Tension spring, 19... Headstock, 21... Spindle center, 22... Tailstock center, W... Work.

Claims

[Scope of utility model registration request]

A grinding machine having a fixed center and a movable center that can move toward and away from the fixed center, is placed outside the fixed center, has a shaft hole in the center through which a workpiece is inserted, and is rotatably supported by a headstock.
A cam lock drive device comprising: a cylindrical face plate rotated by a driving means; and a wheel disposed on the outer periphery of the end face of the face plate on the moving center side and rotatable together with the face plate; A suitable number of rotating bodies are arranged at a predetermined pitch on the side, and a cam plate having a cam surface that can be brought into contact with each other on the outside of each rotating body and rotated via the wheel is provided, and this A cam lock characterized in that each cam surface of the cam plate is formed in such a shape that when the cam plate rotates, the rotating body can be pressed against the outer peripheral surface of the end of a round bar-shaped workpiece supported by the two centers. drive device.