Method and device for removing a slug from a hydroforming tool

US6006566A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Thomas Huelsberg · Schwäbisch Hall, DE
• Ralf Puenjer · Seevetal, DE

Key dates

• Filing date: Mar 5, 1999
• Grant date: Dec 28, 1999
• Expiry date: Mar 5, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T83/0596
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method and a device for removal of a slug separated from a hollow profile by means of a fluidic internal pressure from a hydroforming tool. The slug is separated from the hollow profile from the inside to the outside by the retraction of a plunger integrated into the hydroforming tool and clearing a slug channel when retracted, and is forced out of the die cavity of the hydroforming tool into the slug channel. Then, with the hollow profile in a zero-pressure state, the slug, which after it is pressed in abuts the end of the plunger, is removed by a removal tool from the hydroforming tool. In order to remove slugs from the hydroforming tool in any desired position of the slug channel that leads into the die of the hydroforming tool, in which the slug is initially received after perforation, in simple fashion, the slug is held at the end of the plunger during its stay in the slug channel by an adhesion means connected with the plunger. Then, after the hydroforming tool is opened and the finished hollow profile is removed, the slug, while continuing to adhere to the end of the plunger, is guided by means of the plunger and of the removal tool designed with adhesion means into the op…