CNC Automatic Vision Measuring Machine
CNC automatic vision measuring machine, also known as 2D optical comparator, is high-precision optical profile dimension inspection equipment. Combining vision imaging and automatic CNC motion system, it realizes batch precise 2D contour measurement of precision workpieces. It serves as core metrology equipment for dimensional tolerance control, incoming inspection and pre-shipment inspection of NdFeB magnets and precision components. It effectively replaces traditional calipers and manual gauges and resolves the problems of large manual measurement error and low efficiency.
Working Principle
The machine is equipped with high-resolution industrial camera, precision zoom lens and adjustable ring light source, matched with 3-axis servo CNC motion platform. After the workpiece is placed on the glass worktable, the system runs pre-programmed measurement routines. It automatically drives the lens to scan and capture full contour images of the part. The software automatically identifies contour edges and calculates geometric dimensions including length, width, thickness, hole diameter, chamfer, center distance, parallelism, perpendicularity and position tolerance. It automatically compares readings against drawing tolerances for pass/fail judgment and fully stores measurement data.
Main Applications
Precisely measure 2D outer dimensions of square, round and special-shaped NdFeB magnets, such as length, width, thickness, inner & outer diameter, chamfer, step and edge distance, to control tolerances from cutting and grinding processes.
Perform full dimension batch inspection for tiny and complex-profile special-shaped magnets, capturing subtle deformation and out-of-tolerance defects accurately.
Used for incoming material inspection, in-process patrol inspection and final finished-product inspection, meeting customer dimensional acceptance and factory audit traceability requirements.
Dimensional verification for new product sampling and precision tuning of machining processes, providing accurate data for production parameter optimization.
Batch export of inspection reports for dimensional statistical analysis and improvement of product quality management system.
Core Equipment Advantages
Fully automatic CNC operation. Once programs are created, batch measurement runs with one click without manual point picking, greatly boosting throughput for large lots. Micron-level measurement accuracy eliminates human-induced reading errors. Excellent repeatability delivers precise and reliable measurement data. Multi-level adjustable light source adapts to matte and reflective magnet surfaces, providing sharp contour images and stable edge detection. Multiple measurement programs can be saved and recalled directly for product changeover, enabling simple setup and flexible inspection for multi-specification production. Auto-generate Excel inspection reports with automatic data archiving, convenient for batch traceability, failure analysis and document submission for customer audits. Precision ball screw and linear guide transmission ensures smooth low-vibration movement, strong stability for long continuous measurement and long service life. Intuitive software UI with smart edge finding, automatic compensation and OK/NG tolerance judgment prompts, low learning curve for operators.
Supporting Production Sequence
Magnet cutting / precision grinding → In-process sampling dimensional inspection → Sorting and rework for out-of-tolerance parts → Full dimension final inspection before shipment