JPH0297914U

JPH0297914U -

Info

Publication number: JPH0297914U
Application number: JP509389U
Authority: JP
Priority date: 1989-01-20
Filing date: 1989-01-20
Publication date: 1990-08-03

Description

[Brief explanation of drawings]

図面の第１図から第３図はこの考案の一実施例
に関し、第１図は待機状態でのヘミング装置の全
体説明図、第２図ａ〜ｃは作動中の状態説明図、
第３図はカム部とカムフオロアの状態を示す斜視
図、第４図および第５図は従来例に関し、第４図
は従来のヘミング装置の全体図、第５図はプリヘ
ムダイの問題動作の説明図である。１；ヘミング装置、２；上型、３；下型、４；
ワークテーブル、８；プリヘムダイ、１５；ワー
ク、１５ａ；フランジ、１６；ドライバ、１７；
カム部、１８；カムフオロア、２１；本ヘムダイ
、２４；第１のカム面、２５；第２のカム面、２
６；第３のカム面、２７；第４のカム面。 Figures 1 to 3 of the drawings relate to an embodiment of this invention, in which Figure 1 is an overall explanatory diagram of the hemming device in a standby state, Figures 2 a to c are explanatory diagrams of the hemming device in operation,
Fig. 3 is a perspective view showing the state of the cam part and cam follower, Fig. 4 and Fig. 5 relate to the conventional example, Fig. 4 is an overall view of the conventional hemming device, and Fig. 5 is an explanatory diagram of the problematic operation of the pre-hemming die. It is. 1; Hemming device, 2; Upper mold, 3; Lower mold, 4;
Work table, 8; Pre-hem die, 15; Work, 15a; Flange, 16; Driver, 17;
Cam portion, 18; Cam follower, 21; Main hem die, 24; First cam surface, 25; Second cam surface, 2
6; third cam surface; 27; fourth cam surface.

Claims

[Claims for Utility Model Registration] It has a fixed type and a movable type, and the fixed type is provided with a work table and a pre-hem die for pre-heming the flange of a workpiece set on the work table when the movable type approaches the work table. In a hemming device, the pre-hem die has a cam follower and is swingably supported, and the movable type is provided with a driver having a cam portion that slides on the cam follower and drives the pre-hem die to pre-hem, and the present hem die. The cam follower slides into contact with the cam portion during the approaching stroke of the movable type, and the cam surface has a cam surface for the approaching stroke to rotate the pre-hem die toward the work table to pre-hem, and the cam follower during the far stroke of the movable type. A hemming device characterized by forming a cam surface for a far stroke that slides into contact and rotates the pre-hem die in a direction away from the work table to return it.