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| Danaher Precision Systems |
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Danaher Precision Systems’ motorized X-Y tables
come complete with many standard features. All rotary motor driven tables are supplied complete and ready to use, with motors, rear shaft-mounted knobs for fine manual control, flexible couplings, and built-in Hall-effect limit switches. These limit switches function both as overtravel stops and precision position references, and are repeatable to ±2.5 microns. Separate locking connectors, with strain-relieved cables, are provided for motor and limit/encoder signals, allowing convenient modular cable sets to be used.
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Danaher Precision Systems’ motorized single-axis tables
include a number of standard features, making them ready to integrate. All units include a motor, built-in Hall-effect limit switches, and locking, strain relieved motor and Limit/Limit Connectors. The limit switches are repeatable to ±2.5 microns, providing precision position references in addition to overtravel protection. The separate connectors provide convenient connection of motor and limit/encoder signals. Units with rotary motors also include a rear shaft-mounted knob, for fine manual control, and a flexible coupling. Our anti-backlash friction nut is a key feature of our leadscrew driven tables. It provides very high repeatability and automatically compensates for wear, achieving backlash-free lifetimes in excess of 7.5x106 meters.
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Danaher Precision Systems’ motorized rotary tables
come complete with many standard features, including a motor, a rear shaft- mounted knob for fine manual control, a flexible coupling, a built-in Hall-effect limit switch, and locking motor and limit/encoder connectors with strain-relieved cables. The limit switch provides a precision position reference (repeatable to 30 arc-seconds; 0.008 degree) in one direction of rotation, while the opposite direction allows unlimited travel. Separate locking con- nectors are provided for motor drive and limit/encoder signals, allowing convenient modular cable sets to be used. An anti-back- lash worm assembly is a key feature of our rotary tables. It spring-loads the worm into the gear, providing very high repeata- bility, automatic wear compensation, and smoothing of torque variations throughout the units travel.
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NEAT’s high performance brushless linear servo motors
provide a very high speed, smooth motion alternative to more traditional leadscrew and ballscrew drive mechanisms. They directly drive the user load and may be commutated digitally or sinusoidally, with the latter providing the smoothest motion. Linear servo motors require some form of positioning feedback. This feedback mechanism also dictates the stage’s resolution and accuracy, so its selection is important to system performance. NEAT uses linear encoders since they are non-contacting, cost-effective, and available in a wide range of resolutions and accuracies. Laser interferometers may be used for feedback in applications with extremely demanding accuracy requirements.
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NEAT air bearing stages
provide the ultimate in precision linear motion. Virtually frictionless, they consist of a shuttle which floats on a thin film of air above a precision ground base. Their exceptional linear and angular accuracy stems from the inherent averaging of non-contact air bearing technology.
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X-Y Gantry Stage
Features Fast Move and Settle Times Linear motor drive is simply the best means of achieving fast move and settle times. Our gantry stages use Kollmorgen Platinum DDL iron core linear motors driven by Kollmorgen ServoStar digital servo amplifiers with patented sine wave commutation for best performance. High Long Term Repeatability Linear motor drive provides excellent performance, but thermal rise in the motor coils can have a big effect on long term repeatability. Our gantry stages are designed to maintain repeatability within one micron in the short run, and within 5 microns in continuous operation. The result? The yield of product from your system is increased, because your process is better controlled!
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