PZ-50MD Tool Grinding Machine Video Measuring Microscope by Product Intelligence and Creativity

Overview

The PZ-50MD Tool Grinding Machine Video Measuring Microscope is an industrial-grade optical metrology system engineered for real-time dimensional verification during cutting tool grinding operations. Unlike conventional benchtop measuring microscopes, the PZ-50MD integrates directly into CNC or manual tool grinders—enabling in-situ observation and quantitative measurement without part removal. Its core optical architecture employs a coaxial continuous zoom microscope objective (typically 7×–45× magnification range) coupled with a high-resolution VGA-format CCD camera. The system projects a calibrated live image onto an external monitor, superimposing a precision-ground reticle with engraved reference scales (e.g., 0.01 mm pitch crosshairs, concentric circles, radius templates). Measurement is based on geometric comparison between the tool’s edge profile and the fixed-scale reticle, eliminating reliance on digital pixel calibration—a critical advantage in vibration-prone grinding environments where software-based auto-measurement may drift.

Key Features

• Real-time in-process metrology: Enables direct visual confirmation of cutting edge geometry—including radius, chamfer angle, flank width, and tip symmetry—while the tool remains clamped and rotating on the grinder.
• Mechanically stabilized zoom optics: Features parfocal, backlash-free zoom mechanism ensuring consistent focus across magnification range; eliminates refocusing delays during rapid inspection cycles.
• High-fidelity optical path: Optimized lens coatings and reduced internal scattering improve contrast and edge definition—critical for resolving sub-10 µm features on carbide or HSS tool edges.
• Reticle-integrated measurement: Precision-etched glass reticle (±0.5 µm line width tolerance) provides traceable, hardware-based scaling independent of monitor resolution or video signal compression artifacts.
• Industrial hardening: Sealed optical housing with IP52-rated dust/moisture protection; reinforced aluminum alloy outer casing; front-mounted protective cover glass to withstand coolant splash and mechanical impact.

Sample Compatibility & Compliance

The PZ-50MD supports measurement of solid-carbide end mills, indexable inserts, drills, reamers, and custom rotary cutting tools with diameters from 0.5 mm to 50 mm. It accommodates standard ISO 513 tool holder interfaces (e.g., ER collets, R8, BT30) via optional mounting adapters. While not certified to ISO/IEC 17025 as a standalone metrology instrument, its reticle scale is traceable to national length standards through manufacturer calibration documentation. System design conforms to IEC 61000-6-2 (EMC immunity) and IEC 60950-1 (safety) for industrial control environments. For regulated manufacturing (e.g., aerospace, medical device tooling), users may establish internal SOPs referencing ASTM E29 (standard practice for using significant digits) and ISO 14253-1 (geometrical product specifications) for measurement uncertainty reporting.

Software & Data Management

The PZ-50MD operates as a hardware-calibrated analog-digital hybrid system: all measurements are performed visually against the physical reticle, requiring no proprietary software installation. Video output is standard NTSC/PAL composite or VGA (640×480 @ 60 Hz), compatible with industrial monitors, DVRs, or PC capture cards. Optional third-party frame-grabbing software (e.g., Ocular Capture, StreamPix) may be used for image annotation and basic report generation. Audit trails are maintained manually via operator logs; for GLP/GMP compliance, integration with MES platforms is achievable via RS-232 or GPIO triggers synchronized to grinding cycle start/stop signals.

Applications

• Verification of nose radius (R0.1–R5.0 mm) on finishing end mills prior to final pass
• Chamfer width and angle validation on drill point geometries
• Flank wear monitoring during abrasive grinding of PCD-tipped inserts
• Edge rounding assessment for micro-machining tools used in titanium or Inconel machining
• First-article inspection per AS9102 Form 1 requirements in aerospace subcontracting

FAQ

Does the PZ-50MD require periodic recalibration?
No—its measurement fidelity derives from the fixed physical reticle and optical magnification ratio, not electronic sensor calibration. However, annual verification of reticle alignment and focus consistency is recommended per internal QA protocols.
Can it be used with CNC grinders featuring automatic tool loading?
Yes, provided the mounting interface allows rigid fixation within ±0.1° angular deviation; vibration damping brackets are available as accessories.
Is the LED ring light intensity adjustable?
Yes—the 12 V DC constant-current driver includes a potentiometer for fine-tuning illumination brightness to optimize contrast on reflective tungsten-carbide surfaces.
What is the maximum working distance for standard configuration?
55 mm at 7× magnification, extending to 120 mm at 45× with optional extended-focus objective kits.
Does the system support metric/imperial dual-scale reticles?
Standard reticles are metric-only; custom dual-scale versions (mm/inch) can be ordered with 8-week lead time and NIST-traceable certification.