Coherix’s 3D inspection and process control system minimizes production downtime, the manufacturer says.

ANN ARBOR, Mich.—A new three-dimensional (3D) inspection and process control system from Coherix, Inc., is reported to help automotive manufacturers control urethane bead dispensing on windshields and glass surfaces. The Predator3D GlassMaster Pro provides real-time 3D information on bead height, width, volume, and location, and is said to detect skips or neck-downs without the assistance of an external computer.

Coherix (www.coherix.com), headquartered in Ann Arbor, Michigan, develops and manufactures 3D machine vision products for manufacturing process control. The company’s customers include large global end-users, line builders, dispensing equipment companies, and vision integrators working in the automotive, semiconductor, and electronics industries.

The correct profile, volume, and location of automotive glass urethane beads are critical to avoiding leaks and assuring structural integrity. Maintaining proper nozzle distance from the part surface is critical to consistently perfect beads. According to Coherix, the Predator3D GlassMaster Pro monitors this “Z-axis” in real time to provide advanced 3D inspection and process control. It is said to enable  customers to prevent scrap, increase yields while avoiding false rejects, and optimize their dispensing processes.

GlassMaster Pro is embedded with Coherix’s proprietary software and is said to provide complete closed-loop 3D inspection and process control for the high-profile glass urethane bead dispensing process. Benefits of the technology are reported to include reduced process variation, minimized production down time caused by robot re-programming, and improved product quality. It can also prevent leakage and the expensive rework associated with it, the company said in a press release.

Coherix said that bead inspection using the GlassMaster Pro is not affected by part color or ambient lighting changes, as the system provides robust operation even in “black-on-black” or “gray-on-gray” situations where 2D techniques fail.

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