EuroWire November 2020

Manufacturing Technology

▲ General Inspection’s Halo inspection system

Technology simplified: 100% bolt sorting machine

The Halo inspection system from General Inspection LLC uses a simple hang-by-the-head gravity track to feed parts through a series of inspection sensors – multiple cameras, lasers and eddy current – to provide 360° dimensional inspection, 360° visual defect detection, crack detection, heat treatment verification and recess inspection/measurement, at inspection rates of up to 400 parts per minute. The system requires only a quick width adjustment for shank diameter, rather than complicated bowl feeder changeovers, and does not need dial plates or conveyors. The simple, single-point track adjustment provides fast changeover, and the system ensures defect-free products with advanced (patent pending) feature measurement and defect-detection capability. The standard Halo inspection system is equipped with four cameras with

four backlights and two surface illuminating lights (one from the top and one from the bottom), for 360° profile measurements and 360° visual defect detection. A patented light sequence process generates eight images from four cameras. The four backlit images provide 360° dimensional inspection to part print specifications. Easy-to-use menu-driven software allows for fast set-up, as each part feature is clearly defined, with print specifications entered, saved and recalled from memory. In addition to its 360° dimensional measurement capabilities, Halo has a patented process of light sequencing. Milliseconds after backlighting the parts, front lights from above and below illuminate the part’s surface

to provide 360° surface inspection. This allows detection of thread nicks, knurl damage, dents, scratches and other surface defects, as well as coating inspection and thread patch analysis. The top front light is used by the Axial View lens to detect small cracks that are typically undetected by other inspection means, such as standard vision or eddy current. The bottom front light is utilised by a set of cameras to inspect the bearing surface for cracks and other visual defects. These defects cannot be detected by dial table sorting machines. A dedicated standard lens camera is used to measure recess and recess features, and eddy current can be added to detect the presence of heat treatment. General Inspection LLC https://geninsp.com

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November 2020