Examples for Screw Automatic Measurement

Background of the Application

Our customer is a leading global supplier of high-end bicycle components, employing over 100 developers who specialize in design, development, manufacturing, and sales. Their mechanical threads are fine, and they must use many bolt gauges for inspection during production. Managing the precision and wear of these gauges is critical. In the past, pitch diameter measurement was performed in a certified laboratory, which was costly and inefficient.

Solution

To address this, we propose the following solution. We recommend using the TIMI 30P precision telecentric image measuring instrument, which can simulate the measurement method of three-wire gauges to calculate pitch diameter and perform non-contact automatic measurement. By comparing results with the plug gauge, we can directly obtain accurate measurements with a precision of 1µm and only ±2µm measurement uncertainty.

Features

The majority of the mechanical threads used in bicycle fasteners are fine threads, necessitating the numerous inspection by gauges throughout production. Yet, since the contact inspection of plug gauge is a wearing issues and only get GO/NOGO result. They must be examined for their pitch diameter, which is mostly determined by three-wire gauges. In addition, variations in particular operations greatly increase measurement uncertainty. Thus, a quick and accurate measurement tool is required.

Solution and Features

By comparing results with the plug gauge, we can directly obtain accurate measurements with a precision of 1µm and only ±2µm measurement uncertainty.

Secondly, we suggest utilizing the USDV telecentric image measuring instrument to automatically measure the outer diameter, inner diameter, pitch diameter, pitch, and thread flank angle of the bicycle fastener in under one second. The measurement values can be traced back to standard gauges, making it ideal for mass inspection in the manufacturing process. By controlling the wear of the gauges in real-time, we can ensure product quality and reduce inspection and management costs.