Industrial Technology - Linked-in Industrial Technology - Twitter Industrial Technology - News Feed
Latest Issue
Diary and Events

PPMA Show 2021

NEC, Birmingham(B40 1NT)

28/09/2021 - 30/09/2021

PPMA Show 2021 will be the UK’s largest ever event dedicated to state-of-the-art processing and (more)

Southern Manufacturing

Farnborough, Hants(GU14 6TQ)

06/10/2021 - 07/10/2021

Southern Manufacturing and Electronics is the most comprehensive annual industrial exhibition in the (more)

Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

LG Motion develops customised positioning system for Diamond Light Source

LG Motion develops customised positioning system for Diamond Light Source

Basingstoke based LG Motion has designed and manufactured a customised beamline detector positioning system for Diamond Light Source, the UK’s national synchrotron science facility. The system illuminates miniscule crystal samples with an X-ray beam and the detectors are positioned to a precision of just a few tens of microns to capture scattered light that reveals the complexities of protein structure and their functions.

The objective for the scientists was to increase flexibility and research throughput on the I24 beamline. The design specification called for an XZ positioning rig with the ability to load multiple detectors up to 280kg mass with a volume of around 1m3 over a 1.55m horizontal and 0.85m vertical travel range.

The custom-built detector positioning system is based around precision linear rails with integrated linear encoder and precision ground ballscrews that are connected to a servo motor via flexible couplings. The vertical axis includes a safety brake and further in-line planetary gearhead reduction to ensure that it does not back-drive under power off conditions, even if the fail safe brake is disengaged for any reason. Both axes also include datum and over-travel limit switches as a part of the specification.

The 280kg detector load is evenly distributed on the horizontal stage carriage plate using a welded steel framework with four vertical precision linear bearing rails which guide the vertical translation of the detector mounting platform. Each horizontal rail has three bearing carriages that support the upper moving horizontal stage carriage plate which is approximately 1000mm square and 20mm in thickness. The large base plate of the detector system was bolted to the experiment hutch floor after some precision laser alignment, levelling and grouting on installation.

The vertical axis uses one pair of bearing rails utilising three bearing carriages, with the opposing pair just one carriage, this design is much preferred to a more conventional dual bearing arrangement for overhung loads, but this design allowed the use of smaller linear bearings and simplified the power transmission mechanics to be used.

LG Motion is the UK agent for Schneeberger, and the selected the company’s Monorail AMS series linear motion guide bearings with linear encoders for their compact, integrated design that offered exceptional loading characteristics, smooth motion and precision feedback. Schneeberger rails are used extensively on large-scale precision machine applications with advantages of ‘close to load’ measurement and simplified installation plus cost benefits over separately supplied bearings and encoders.

The beamline detector mounting platform is fabricated from MiniTec modular aluminium profile system which was ideal for design flexibility and fixing mounting brackets to.


Other News from LG Motion

LG Motion invests in new plant at Basingstoke HQ

Latest news about Ball screws, lead screws & rotary screws

Additional Information
Text styles