Patent · US Active

Method and device for precision cutting of workpieces in a press

US9919353B2 · kind B2 · utility

1Cited by

26References

8Claims

0Family size

Assignee

WEBO WERKZEUGBAU OBERSCHWABEN GMBH · DE

Inventors

Norbert Ziesel · Weingarten, DE
Axel Wittig · Roggenzell, DE

Key dates

Filing date	Sep 11, 2014
Grant date	Mar 20, 2018
Priority date	—
Expiry date	Sep 13, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T83/2096
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method for precision cutting of workpieces using a press which includes a press frame, in the press opening of which press frame a press ram, that works against a press table, is movably driven, wherein at least one of the press tools is formed as a cutting tool that includes a cutting punch, a downholder, a cutting die and a counter support. The cutting tool operates as a precision cutting tool. A lower tool part of the cutting tool includes a controlled retaining module that retains the counter support in a certain press ram position to enable ejecting the scrap.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.