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    Performance improvement of the LM device and its application to precise measurement of motion trajectories within a small range with a machining centre

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    Authors
    Qiu, Hua
    Yue, Yong
    Kubo, Akio
    Lin, Chao
    Cheng, Kai
    Huo, Dehong
    Li, Dayou
    Issue Date
    2012
    Subjects
    motion accuracy
    measurement device
    performance improvement
    small size motion
    machining centre
    
    Metadata
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    Abstract
    In order to apply the LM device previously developed to precisely measuring small motion trajectories located on the different motion planes, three major improvements are successfully performed under the condition of completely maintaining the advantages of the device. These improvements include 1) development of a novel connection mechanism to smoothly attach the device to the spindle of a machining centre; 2) employment of a new data sampling method to achieve a high sampling frequency independent of the operating system of the control computer; and 3) proposal of a set-up method to conveniently install the device on the test machining centre with respect to different motion planes. Practical measurement experiment results with the improved device on a machining centre sufficiently demonstrate the effectiveness of the improvements and confirm several features including a very good response to small displacement close to the resolution of the device, high precision, repeatability and reliance. Moreover, based on the measurement results for a number of trajectories for a wide range of motion conditions, the error characteristics of small size motions are systematically discussed and the effect of the movement size and feed rate on the motion accuracy is verified for the machining centre tested.
    Citation
    Qiu, H., Yue, Y., Kubo, A., Lin, C., Cheng, K., Huo, D. and Li, D., (2012) 'Performance Improvement of the LM Device and Its Application to Precise Measurement of Motion Trajectories within a Small Range with a Machining Centre', 02 (03):71-85 Modern Mechanical Engineering
    Publisher
    Scientific Research Publishing
    Journal
    Modern Mechanical Engineering
    URI
    http://hdl.handle.net/10547/275712
    DOI
    10.4236/mme.2012.23010
    Additional Links
    http://www.scirp.org/journal/PaperInformation.aspx?paperID=22183
    Type
    Article
    Language
    en
    ISSN
    2164-0165
    2164-0181
    ae974a485f413a2113503eed53cd6c53
    10.4236/mme.2012.23010
    Scopus Count
    Collections
    Centre for Research in Distributed Technologies (CREDIT)

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