Remember, should an arm be damaged it will usually have to go back to the USA for repair and in most cases, this means you will be out of action for several weeks! Laser Scanner Integration Finally, use the gauge with care portable arms do not tolerate rough usage well. Care must also be taken during probing: make sure the probe is in constant contact with the area to be measured and always be on the lookout for points that are taken out of range. Any kind of instability will magnify itself to the probe tip and create major accuracy issues. There are several reasons for an arm not to perform to specifications: poor clamping and unstable mounting platforms are two of the biggest culprits. It is a generally accepted fact that arm performance degenerates at a much faster rate than that of a stationary coordinate measuring machine. To request your portable arm calibration quote, call us at 1.800.606.9266 These tests must be performed at an accredited lab with traceable artifacts, ideally, a lab certified to ISO 17025 standards. There are essentially three parts to the calibration procedure: For a successful evaluation of the arm, your calibrator must follow the standard. The current standard for calibration is ASME B89.4.22-2004. CalibrationĪs we come to rely more and more on the portable arm, it's important to monitor your arm’s accuracy through regular calibration. Combine this with battery operation and they become a highly mobile device that is used anywhere inside or out. The latest arms have both Bluetooth and wireless integrated technology enabling them to be completely cable-free. It's also not unusual to find them mounted on the bed of the machine tool! It is little wonder, then, that their popularity is on the rise. They can be attached to a portable measurement stand, directly on a fixture or on a surface plate in the inspection room. Portable measurement arms can be used anywhere in the modern factory. Arm sizes are determined by spherical measuring ranges and are usually available in sizes from 2 m to as large as 5 m. Both the shoulder and the elbow are generally two axes on seven-axis machines (typically scanning arms), the wrist has three axes of movement. It consists of three joints: the wrist, the elbow and the shoulder. The articulating arm coordinate measuring machine uses a series of rotating components around a generally perpendicular axis. It’s true that they bestow many benefits on the users, but there are also many pitfalls to overcome when utilizing this highly effective and sophisticated tool. Portable measuring arms are becoming commonplace in today's manufacturing facility. Calibration and Obtaining Optimum Performance.
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