Punching and riveting machine

US4369907A · kind A · utility

Assignee

• Muhr und Bender · DE

Inventors

• Richard Muhr · Attendorn, DE
• Karl Schink · Attendorn, DE

Key dates

• Filing date: Oct 3, 1980
• Grant date: Jan 25, 1983
• Expiry date: Oct 3, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/5118
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A puncher-riveter has a fixed lower part having an upper surface and a vertically displaceable upper part above the lower part and having a lower surface. A hydraulic motor vertically displaces the upper part toward and away from the lower part. A punch having a lower punch end is vertically displaceable on the upper part between an upper rest position with the lower end above the lower surface of the upper part and a lower working position with the lower end below this lower surface. A die is provided on the lower part in vertical alignment with the punch so that the lower punch end can engage in the die when the punch is in the lower working position and the upper part is displaced down toward the lower part. A rivet anvil and an embossing tool are provided on the lower surface of the upper part adjacent the punch and a rivet-setting tool has an upper tool end and is vertically displaceable on the lower part between an upper working position with its upper end above the upper surface and a lower rest position with the upper tool end below the upper surface. Thus it is possible with the same machine, simply by switching the punch and rivet-setting tool, to punch and rivet together…