SIG Automatic Vision Measuring Machine: High-Precision Measurement for Metal Connector Shells

As laptops, tablets, and servers become thinner and more integrated, board to board connectors play a critical role in signal and power transmission between PCB boards. Their machining accuracy directly affects the electrical performance and assembly reliability of the whole device. SIG – a brand of Sinowon – launches a fully automatic vision measuring machine (also referred to as an OMM – Optical Measuring Machine, or video measuring system), providing an efficient and precise solution for key dimension control of metal connector shells.

Industry Challenge: Why Are Connector Shells So Demanding?

The dimensional accuracy, flatness, and profile tolerance of metal connector shells are extremely stringent. Lead pitch deviation may cause misalignment or poor contact, while flatness error affects the sealing and fit with matching plastic parts and terminals. Traditional manual calipers are inefficient, visual inspection of coplanarity is inaccurate, and sampling inspection leaves hidden quality risks.

What Can SIG Vision Measuring Machine Measure?

SIG fully automatic vision measuring machine is based on optical imaging, combining a high-resolution industrial camera, telecentric optical system, and intelligent edge-finding algorithms to achieve non-contact micron-level measurement. For metal connector shells, the system covers the following key inspection items:

① External dimension measurement – Automatically measures length, width, thickness, and other basic dimensions, ensuring design specifications are met. The system precisely captures irregular contours, R-angles, and fine features.

② Locating and mounting hole inspection – Automatically identifies and measures hole diameter, edge distance, and multi-hole position accuracy, guaranteeing alignment accuracy between the metal shell, PCB, and plastic parts.

③ Flatness and coplanarity measurement – Using full-field Z-axis height scanning, evaluates flatness deviation of the mounting surface, avoiding sealing failure or assembly interference caused by flatness errors.

④ Profile tolerance and GD&T analysis – Supports comprehensive geometric dimension measurement, including profile tolerance, parallelism, perpendicularity, position, symmetry, and other GD&T parameters.

In addition, the machine can simultaneously inspect lead pitch, height, and terminal position accuracy, ensuring soldering reliability during SMT assembly.

Problems Solved – Breaking Through Three Key Pain Points

Pain point 1: Eliminate measurement force interference with non-contact measurement
Traditional contact probes may scratch or micro-deform metal shells. SIG video measuring system uses optical magnification and contour capture to complete edge detection in milliseconds, avoiding physical contact and delivering more reliable data.

Pain point 2: Automated programming solves batch inspection efficiency
SIG fully automatic vision measuring machine features CNC functionality. With one-click start, it performs batch measurement according to pre-set paths. The intelligent software automatically completes coordinate alignment and data collection – improving average efficiency by approximately 80% compared to traditional methods (applicable to typical batch inspection scenarios). For small parts under 5mm, single-part measurement time can be reduced to seconds. Measurement results automatically generate SPC statistical analysis reports, providing real-time monitoring of production line capability.

Pain point 3: Multi-angle illumination and intelligent algorithms conquer complex feature recognition
For highly reflective metal shells, the machine is equipped with programmable multi-angle LED ring light, coaxial light, and contour light. Combined with sub-pixel edge extraction algorithms, it achieves micron-level repeatability and clearly captures contour edges.

Customer Value – From Sampling to Full Inspection

Sinowon (brand owner of SIG) is a professional manufacturer of optical dimension measurement equipment, having served over 3,000 customers since its establishment. According to internal follow-up data from one client, after introducing the Sinowon vision measuring machine, inspection efficiency increased by approximately 400% , labor costs decreased by about 70% , and customer complaint rate dropped by roughly 73% . From stamping part inspection to finished product verification, Sinowon vision measuring machines help manufacturers upgrade quality control from “sampling” to “full inspection”.

For more product details or a customized measurement solution, please visit the Sinowon official website: www.sinowon.com or call +86 769-23184144.

Note: Efficiency improvement, cost reduction, and complaint rate data mentioned in this article are typical values from specific test environments or customer cases. Actual results may vary depending on part specifications, operating conditions, etc.