Die-punch machine

Details Die-punch machine Die-punch machine

1994-07-12

1996-03-26

Crane, Daniel C.

Metal deforming

With cleaning, descaling, or lubrication of work or product

Lubricating

72344, 72328, 72335, B21D 3718, B21J 1314

Patent

active

055010920

ABSTRACT:
A die-punch machine capable of directly supplying a machining oil to an end section of a punch and to a workpiece to be machined. A first member holds the punch, and a second member is capable of relatively moving to and away from the first member. A die is held by the second member, wherein a front end section of the punch is capable of inserting into the die. A stripper plate provided between the first member and the second member, is connected to the first member, and has a clearance thereto and a through-hole, wherein the clearance is shortened. The front end section of the punch projects from a face of the stripper plate, which is on the second member side, through the through-hole so as to go into the die when the first member and the second member mutually get close. An oil path for introducing machine oil is formed in the stripper plate, one end of the oil path is opened on an inner face of the through-hole.

REFERENCES:
patent: 2378068 (1945-06-01), Eason
patent: 3733873 (1973-05-01), Ballmer
patent: 4094182 (1978-06-01), Kusada
patent: 4674314 (1987-06-01), McGregor
patent: 4882924 (1989-11-01), Kohama
patent: 5159826 (1992-11-01), Miyazawa et al.
patent: 5237849 (1993-08-01), Miyazawa

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