JPH0464486U

JPH0464486U -

Info

Publication number: JPH0464486U
Application number: JP10593090U
Authority: JP
Priority date: 1990-10-11
Filing date: 1990-10-11
Publication date: 1992-06-02

Description

[Brief explanation of the drawing]

第１図はターンテーブル上のワークを溶接する
装置の一般例を示す概略図を示し、第２図は本考
案によるコレツトチヤツク装置の縦断面図を示し
、第３図は従来のコレツトチヤツク装置の縦断面
図を示す。１０……コレツトチヤツク、１１……本体ケー
ス、１１ａ……おねじ部、１２……スリーブ、１
２ｂ……円錐凹部（締込部）、１２ｃ……円錐凹
面、１３……ロツド、１４……リターンスプリン
グ（第１ばね部材）、１５……コレツト、１５ａ
……保持部、１５ｃ……円錐凸部、１５ｄ……円
錐凹面、１５ｅ……突当て部、１６……押出しス
プリング（第２ばね部材）、１７……調整ナツト
、１７ａ……フランジ部、１７ｂ……ねじ部、２
０……ターンテーブル、２１……テーブル基準面
。 Fig. 1 shows a schematic diagram showing a general example of a device for welding workpieces on a turntable, Fig. 2 shows a longitudinal sectional view of a collect chuck device according to the present invention, and Fig. 3 shows a longitudinal sectional view of a conventional collect chuck device. Show the diagram. 10...Collection chuck, 11...Main case, 11a...Male thread portion, 12...Sleeve, 1
2b... Conical recess (tightening part), 12c... Conical concave surface, 13... Rod, 14... Return spring (first spring member), 15... Collet, 15a
... Holding part, 15c ... Conical convex part, 15d ... Conical concave surface, 15e ... Abutment part, 16 ... Extrusion spring (second spring member), 17 ... Adjustment nut, 17a ... Flange part, 17b ...screw part, 2
0... Turntable, 21... Table reference surface.

Claims

[Scope of Claim for Utility Model Registration] (1) A cylindrical body case that is fixed to a table and has a threaded portion protruding from the table reference plane, and a direction perpendicular to the table reference plane that is in sliding contact with the inner peripheral surface of the body case. a sleeve that is movably supported by a first spring member, is biased in a direction protruding from the table surface, and has a tightening portion at its tip; a collet that is supported movably in the direction and urged in a direction protruding from the table surface by a second spring member, and has a holding part at its tip that holds the workpiece by receiving a pressing force from the tightening part of the sleeve; an adjustment nut that is screwed into a threaded part of the main body case and rotates to approach or move away from the table reference surface; 1. A collect chuck device characterized in that a contact portion of the collet is brought into contact with an inner side of the collet by a second spring member. (2) By providing a concave concave surface on the tightening part of the sleeve, and providing a conical convex surface in sliding contact with the concave concave surface on the holding part at the tip of the collet, and forming a large number of slits around the circumference of the holding part, elastic Claim (1) that tightens or loosens the workpiece by expanding or contracting it.
The collect chuck device described in . (3) It has an actuating mechanism for retracting the sleeve from the table reference surface against the first spring member, and by retracting the sleeve, the frictional force and diameter reduction force caused by the conical concave surface against the conical convex surface of the collet holding part are released. Claim (1): loosening the holding part holding the workpiece.
The collect chuck device described in .