JPS60176845U

JPS60176845U - punch device

Info

Publication number: JPS60176845U
Application number: JP6144684U
Authority: JP
Inventors: 鈴木　隆充; 中根　統親; 健二中井; 都筑　教夫; 悟岩瀬
Original assignee: トヨタ自動車株式会社; 愛三工業株式会社
Priority date: 1984-04-27
Filing date: 1984-04-27
Publication date: 1985-11-22

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１，２図は従来技術に基づくパンチ装置を示−すもの
であり、第１図はダイスニブの断面減少率が小さい場合
の断面図、第２図は断面減少率が大きい場合の第１図相
当断面図、第３図以下の図面は°この考案の１実施例を
示すものであり、第３図はワーク成形終了後の第１図相
当断面図、第４図は離脱時の第３図相当断面図である。Figures 1 and 2 show a punching device based on the prior art. Figure 1 is a cross-sectional view when the area reduction rate of the die nib is small, and Figure 2 is a cross-sectional view when the area reduction rate is large. Equivalent sectional view, Fig. 3 The following drawings show one embodiment of this invention. Fig. 3 is a sectional view equivalent to Fig. 1 after forming the workpiece, and Fig. 4 is Fig. 3 when detached. It is a corresponding cross-sectional view.

Claims

[Scope of utility model registration request]

In a punch device in which a molded hole into which a knockout punch can be freely inserted and removed is formed in a multilayer die nib fitted to a reinforcing ring, and a punch holder that faces the die nib in the upper layer and surrounds the punch is linked to a ram, the punch holder is A die nib holder that contacts the upper die nib through which the punch can be inserted is disposed on the lower side, and a hydraulically driven piston that is slidable on the upper side with respect to the punch case surrounding the punch holder. A punch device characterized in that it is disposed in connection with the die nib holder.