S TA G E S • TA B L E S • G A N T R I E S Dynamic metrology is the collection of data on objects traveling on moving machine axes. It’s increasingly common with laser-based inspections and spectrometry ... primarily for semiconductor and electronics manufacturing that uses line scanning of discrete product during processing. Life-science applications such as cell analysis or DNA and gene sequencing — which necessitate high data-collection throughput — also employ dynamic metrology. Yet another application is in precision laser cutting. Because the stages carrying the product are in motion during measurements, they must exhibit minimal error.
LM Linear Actuator / SAR Linear motor driven high acceleration and accuracy, unlimited travel.
KA Type Linear Actuator / SAR Ballscrew or belt driven, exible design.
One solution is to specify stages based on linear motors — as the one shown here from the Electromechanical & Drives Division of Parker Hannifin Corp.
gantry systems employ CNC-based motion control functions. While they’re precise and allow manipulation of all motion functions, such gantries can also be expensive and necessitate high-level support for engineering and maintenance. So one maker of gantry systems — Harry Major Machine — recently began offering a PLC-run gantry to boost performance for end users. The new gantry from Harry Major Machine is an XYZtype machine to execute flexible materialhandling tasks — and incorporates Siemens components. Siemens engineers reviewed the existing gantry-machine mechanical designs, developed a bill of materials (BOM) with recommended additions, and then helped in their integration. Now, five new gantry
models (the MGL-30, MGL-50, MGL150, MGL-250, and MGL-500) support various end-user functions with SIMATIC S7-1516F PLC control. The controllers are easily configurable with quick software deployment and a smart library to simplify use of universal functions. Another benefit is that the PLC allows use of servo drives — a setup once too slow for industrial applications. New servo-drive components plus advanced PLC and automation control make for flexible and user-friendly gantries that outperform CNC-controlled motion systems. With its new controller, new Harry Major Machine gantries also accept cabled and wireless connectivity with integrated safety.
KK Type Linear Actuator / SAR Ballscrew driven, high accuracy and reliability.
KS Type Linear Actuator / SAR Ballscrew driven for clean room applications.
AC Servo Motors.
IAI Inc. CT4 Cartesian robots have quick cycle times — to 32% faster than comparable builds — for small-parts assembly and inspection that’s more efficient.
motioncontroltips.com | designworldonline.com
tables & stages & gantries – Motion Control HB 08.18 V2.LE OK.indd 89
Hiwin D1 and D2 Servo Drives for Servo Motors, Torque Motors and Linear Stages.
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DESIGN WORLD — MOTION
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