Product category:
Linear Drives and Motors
News Release from: Amacoil | Subject: Linear motion systems
Edited by the Engineeringtalk Editorial
Team on 16 October 2002
Linear assembly adjusts tool head stroke
length
A novel linear motion system requires no programming and has mechanically triggered controls which automatically adjust the tool head stroke length and reversal, "on the fly".
A linear motion system, developed by Amacoil/Uhing, requires no programming and has mechanically triggered controls which automatically adjust the tool head stroke length and reversal, "on the fly", to meet various converting and assembly application requirements The assembly is designed for use in machinery on high-volume production lines where there is a requirement to gradually increase or decrease the tool head stroke length, without stopping or slowing down the system
This article was originally published on Engineeringtalk on 14 Aug 2002 at 8.00am (UK)
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Catalogue details "rolling ring" linear drives
The just-published RS linear drive catalogue from Amacoil/Uhing provides complete descriptive and design engineering information for using "rolling ring" linear drives in positioning and indexing.
Example applications are loading/unloading machines, indexing and positioning tables, parts feeding systems, pick-and-place systems, adhesive/glue dispensing equipment, printed circuit board and electronics assembly lines, and metrology procedures.
Amacoil will provide design and fabrication, or retrofit an existing Amacoil system.
The desired increase or decrease in stroke length is dialled-in via a conveniently located control knob on the framework.
Because the changes to the tool head's stroke length and reversal points are made while the system is in operation, independently of the drive motor's speed and rotational direction, the need for clutches, gears and complex control systems is eliminated.
Additionally, an affordable unidirectional motor may be used to drive the system.
The rolling ring drive in the assembly runs on a smooth shaft - there are no threads where dirt and debris can collect, which means a protective shaft bellows assembly is unnecessary.
The patented design of the rolling ring bearing assures continuous point contact between the bearing and the drive shaft, thus eliminating backlash.
Rolling ring drive assemblies provide up to 800lb of axial thrust.
Travel speed is up to 13ft/s at constant speed, over distances up to 16ft.
Selectable features include automatic reversal, variable pitch, load carriers for heavy or off-centre payloads, integrated linear scale to meet high precision requirements, delayed reversal, "dwell" capability, and more.
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