Patent · US Active

Device for measuring the depth of a weld seam in real time

US10967452B2 · kind B2 · utility

1Cited by

4References

11Claims

0Family size

Assignee

Precitec GmbH & Co. KG · DE

Inventors

Rüdiger Moser · Malsch, DE
Thibault Bautze · Karlsruhe, DE
Martin Schönleber · Aschaffenburg, DE

Key dates

Filing date	Oct 16, 2015
Grant date	Apr 6, 2021
Priority date	—
Expiry date	Apr 21, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG01B11/22
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A device for measuring the depth of a weld seam in real time during the welding or joining of a workpiece by means of radiation, including: its measuring light source, the light of which is coupled by a beam splitter into a reference arm and a measuring arm; a collimator module having at least one collimation lens for collimating a measuring light beam, which is fed to the collimator module via an optical waveguide in the measuring arm, and for imaging the measuring light beam, which is reflected from a workpiece to be processed, on an exit/entry surface of the optical waveguide; a coupling element for coupling the measuring light beam into the beam path of a processing beam; a focusing lens for the joint focusing of the measuring light beam and the processing beam on the workpiece and for the collimating of the reflected measuring light beam; and an analysis unit for determining the depth of a weld seam, into which the measuring light reflected from the workpiece is guided with the superimposed, reflected light from the reference arm. The collimator module includes a device for setting the axial focal position of the measuring light beam, and for setting the lateral focal position…

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