Balancing machine having an apparatus for sensing geometrical data of a rotary member to be balanced and a method of balancing a rotary member

US5526686A · kind A · utility

Assignee

• Hofmann Werkstatt-Technik GmbH · DE

Inventors

• Andreas Fuchs · Aalen, DE
• Klaus Ruhl · Wenigumstadt, DE
• Karl Rothamel · Seeheim-Jugenheim, DE

Key dates

• Filing date: Sep 7, 1994
• Grant date: Jun 18, 1996
• Expiry date: Sep 7, 2014

Classification

• Technology area (CPC G): Physics
• CPC primary: G01M1/326
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

In a balancing machine having an apparatus for sensing geometrical data of a rotary member to be balanced such as a motor vehicle wheel which can be clamped on a main shaft of the balancing machine, the apparatus has a measuring sensor arranged on a support bar of the balancing machine, which is parallel to the main shaft and fixed in its longitudinal direction. The measuring sensor is rotatable about the longitudinal axis of the support bar and has a pivot head which is arranged on the support bar rotatably about the longitudinal axis of the support bar. The sensor also has a measuring sensing lever having a positively guided sensing head, wherein the measuring sensing lever is mounted pivotably on the pivot head and a sensing finger on the sensing head is movable toward and away from the wheel to be sensed, upon a pivotal movement of the measuring sensing lever, in parallel orientation with respect to the main shaft. An angle measuring means is arranged on the pivot head to detect the pivotal angle of the measuring sensing lever relative to the pivot head.