PW PWOCA-400CNC Fully Automated Vision Measuring System

Overview

The PW PWOCA-400CNC is a high-precision, fully automated vision measuring system engineered for metrological-grade 2D and 2.5D geometric inspection in quality control laboratories, precision manufacturing facilities, and R&D environments. It operates on the principle of digital optical imaging metrology—capturing high-resolution images of parts via a stabilized industrial CCD sensor, then applying sub-pixel edge detection algorithms and coordinate geometry transformations to compute dimensional features with traceable accuracy. The system integrates CNC-controlled XYZ motion with closed-loop servo positioning, enabling repeatable, operator-independent measurement sequences compliant with ISO 10360-7 (coordinate measuring machines) and VDI/VDE 2617 Part 6 (optical measuring systems). Designed for production-floor robustness and lab-grade repeatability, it bridges the gap between manual optical comparators and coordinate measuring machines (CMMs), offering non-contact, high-throughput verification of machined components, stamped parts, PCBs, and micro-fabricated geometries.

Key Features

• CNC-driven XYZ motion platform powered by high-torque Japanese Nidec servo motors, ensuring smooth, vibration-damped traversal and positional stability across full travel range
• Precision-ground TPI lead screws with backlash compensation, delivering axial positioning repeatability ≤ ±0.002 mm per axis
• Ultra-rigid granite base and structural frame, manufactured to industrial CNC machining tolerances (IT6–IT7) for thermal and mechanical stability
• Continuous zoom telecentric lens system enabling seamless magnification switching (e.g., 0.7x–4.5x) without refocusing—reducing setup time and improving throughput by up to 2×
• 130W industrial-grade progressive-scan CCD camera with native 1920 × 1080 resolution, optimized for high-contrast edge capture under programmable LED coaxial and ring lighting
• HIWIN ultra-precision linear guideways (class H) with parallelism deviation ≤ 0.002 mm over 400 mm travel—ensuring orthogonality and squareness integrity
• Integrated real-time image processing engine supporting sub-pixel edge detection (1/10-pixel interpolation), auto-thresholding, and noise suppression

Sample Compatibility & Compliance

The PWOCA-400CNC accommodates flat or low-relief parts up to 400 mm × 300 mm × 150 mm (L × W × H) and weighing ≤ 15 kg. It supports reflective, translucent, and matte-surface materials including metals, ceramics, plastics, composites, and printed circuit substrates. Measurement protocols align with ISO 1101 (geometrical tolerancing), ISO 14289 (GD&T symbol interpretation), and ASTM E29 (significant digits in test data). The system architecture meets GLP/GMP documentation requirements: all measurement sessions are timestamped, user-logged, and support audit trail generation. Software complies with FDA 21 CFR Part 11 for electronic records and signatures when configured with optional user authentication and electronic signature modules.

Software & Data Management

The proprietary PW VisionPro software—certified for Windows 10 (64-bit)—provides a modular, scriptable interface for both routine inspection and advanced metrology workflows. Core capabilities include automatic contour scanning, dynamic edge tracking, and batch measurement scripting with conditional logic. Geometric evaluation covers points, lines, circles (max/min/mean), arcs, ellipses, rectangles, slots, radii, distances, angles, and point clouds. Constructed features (e.g., intersections, centers, tangents, bisectors) are mathematically derived using least-squares fitting and Gaussian-weighted centroid algorithms. Reports export natively to Excel (.xlsx) and PDF formats with embedded annotated images, tolerance callouts, and statistical summaries (Cp/Cpk, X̄-R charts). Bidirectional CAD integration enables direct import of DXF/DWG files for GD&T overlay and reverse engineering—measurements can be exported as IGS or STEP for downstream CAM or FEA validation.

Applications

• Dimensional verification of precision-machined components (shafts, housings, connectors) per ISO 2768 and customer-specific drawings
• PCB and flex-circuit inspection: pad alignment, solder mask opening, trace width, drill hole location and diameter
• Tooling and mold validation: cavity profile matching, electrode wear analysis, gate dimensioning
• Medical device component QC: catheter tip geometry, stent strut spacing, implant surface feature registration
• Automotive supplier audits: bracket hole patterns, gasket cutout profiles, brake caliper mounting surfaces
• Educational metrology labs: hands-on training in GD&T principles, measurement uncertainty estimation, and calibration traceability

FAQ

What is the maximum part size this system can accommodate?
The PWOCA-400CNC accepts parts up to 400 mm (X) × 300 mm (Y) × 150 mm (Z), with a maximum load capacity of 15 kg.
Does the system support GD&T evaluation per ASME Y14.5 or ISO 1101?
Yes—VisionPro software includes dedicated GD&T modules for position, concentricity, symmetry, profile of a line/surface, and runout, with tolerance zone visualization and deviation reporting.
Is calibration certification included with purchase?
A factory-issued ISO/IEC 17025-accredited calibration certificate (traceable to NIM, China) is provided upon delivery; annual recalibration services are available under service contract.
Can measurement programs be automated for unattended operation?
Yes—batch scripts support looped execution, pass/fail logic, email alerts on out-of-spec results, and integration with PLCs via Ethernet/IP or Modbus TCP.
What operating systems are supported beyond Windows 10?
VisionPro is validated for Windows 10 (LTSC and semi-annual channel); Windows 11 compatibility is confirmed for version 23H2 and later, with driver certification completed.