Machine for turn broaching crankshafts with rotationally symmetrical surfaces

US5743688A · kind A · utility

Assignee

• Boehringer Werkzeugmaschinen GmbH · DE

Inventors

• Herbert Kiefer · Steißlingen, DE
• Herbert Klemisch · Uhingen, DE
• Kurt Rohr · Denver, US
• Rolf Santorius · Uhingen, DE
• Manfred Schuler · Irvine, US
• Wolf-Dietrich Voss · Bonndorf, DE

Key dates

• Filing date: Feb 27, 1995
• Grant date: Apr 28, 1998
• Expiry date: Feb 27, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T409/4077
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A machine and a process of using the machine for turn-broaching a workpiece to for crankshafts or camshafts. The machine comprises turn-broaching units having peripheral cutters whose cutting surfaces are monitored and automatically adjusted to compensate for wearing. The angular positions of the cutters of a turn-broaching unit may also be offset with respect to one another such that only one cutter is in contact with the surface of the workpiece at each instant.