b'Look-AheadDETECT SPINDLE ANOMALIES By Ken Schnepf The GEMDS module is shown. T o reduce scrap and improvesignals can be monitored productivity, the Artis GEMDS system from Marposs Corp., Au- onefordisplacement burn Hills, Michigan, detects spin- and three for temperature dle anomalies in real time. This sharing real-time feed-helps shops prevent damage to ma- back on critical variations. chines and avoid out-of-toleranceGEMDS has a measuring components. The system uses datarange of 550 m (0.022") from a noncontact eddy currentand precision down to 0.2 sensor to monitor spindle elonga- m (0.000008").tion on machine tools due to tem- Thesystemmonitors perature changes or other causes ofthe displacement of spin-displacement. dle and machine parts be-During machining processes infore and during machining, machine tools, temperature varia- Pena said.tions occur, said Product ManagerGEMDS functions as an Jorge Pena. And in most cases,intelligent stand-alone so-these variations are the cause oflution installed on a mount-spindle growth, which leads to pooring rail in a switch cabinet. workpiece quality and damages. All necessary interfaces are The system gives early feedbackavailable for easy integration if set limits are exceeded. into existing controls, net-The GEMDS system uses con- work environments and In-tactless sensors to measure the vari- dustry 4.0 solutions. As part ation of the distance of a specificof the Genior Modular prod-target and then either generatesuct family, the system can alarms to stop the machine or trans- be integrated into a Genior mits the information to the numeri- modular monitoring system cal control to provide a compensa- for process monitoring pur-tion, Pena said. poses, creating a flexible solu-MarpossThe system consists of the eddytion to adapt to changing needs.current sensor, an amplifier, a con- The modular system design can nectingcableandamonitor- be configured to a dedicated sys-ing module. Four different sensortem or machines or added to sys- Pena said although GEMDS is tems as needed, Pena said. It iscapable of measuring phenomena preferable for a high-precision ma- that vary slowly like thermal varia-about the authorchine process. tion or leakage of fluid, the system He said GEMDS improves pro- also measures other phenomena, Ken Schnepf is acess reliability thanks to continu- such as planarity error, misalign-freelance writerous monitoring of machining op- ment and eccentricity of rotating based in theerations. The system helps increaseparts.CTEChicago area. Heproductivity and workplace quality,For more information about Mar-can be reached at kjsgbp1@aol. better utilizes a machine and allowsposs, call 248-370-0404 or visit www.com. integration of tools with sensors. marposs.com.60JULY 2020LookAhead.indd 60 6/17/20 6:38 PM'