Product category:
Gantries, manipulators and positioners/positioning tables
News Release from: Micromech | Subject: Direct drive rotary table
Edited by the Manufacturingtalk Editorial
Team on 06 September 2006
Direct drive rotary table works in three
modes
Direct drive rotary servo table can operate in position, speed or torque control mode and its direct drive brushless motor design eliminates the need for a gear drive, so gives long operating life.
The DM 1004C from Micromech is a high performance direct drive rotary servo system, which provides high accuracy and torque without the need of speed reducers It consists of a brushless direct drive motor, a cross roller support bearing system, an integral optical encoder, a microprocessor-based drive, power supply, and a 3m motor-to-drive cable
This article was originally published on Manufacturingtalk on 28 Apr 2004 at 8.00am (UK)
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The highly efficient direct drive brushless motor design eliminates the need for a gear drive or other mechanical drive train and as a result gives long life, maintenance free operation.
With a working surface diameter of only 116mm and overall depth including flange of 77mm the unit is designed to offer a compact solution to machine builders.
The clever cross roller bearing design can support up to a massive 350kg of compression load and a useful 3.3kg.m of overhung load.
The positional repeatability is an exceptional 3 arc-sec yet the drive can deliver a powerful peak torque of 4Nm and its built-in test mode simplifies optimum tuning.
With a maximum velocity: 2.5 rev/s they are still able to maintain an accuracy of +60 arc-sec (0.0167 deg) on the standard version and a +20 arc-sec (0.00556 deg) option is also available.
The axial and radial run-out is 0.01mm and they have very smooth rotation at slow speeds, as well as a much faster settling time than a traditional servo motor or speed reducer system.
The table is suitable for a wide range of industrial and machine tool applications but with a Class 10 clean room option on offer it can also be used in optical, photonic, semiconductor or research systems.
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