Paper Titles
A New Method of Reducing the Measurement Blind Area for MPS
p.9
Calibration for Laser Scanners Based on the NIM 80m Indoor Ranging Facility
p.14
Cutting Force Evolution and its Power Spectrum Analysis with Tool Wear Progress in Ultra-Precision Raster Milling
p.20
Decision Rules and Risk Analysis
p.26
Design and Development of a Novel Coordinate Measuring Machine with 3-PUU Parallel Mechanism
p.34
Error Detection Technology for Calibrating Precision of Non-Contact Coordinate Measuring Machine
p.42
Evaluation of Straightness of Two-Axes Stage
p.47
High Resolution SelfA Rotary Table by the Interpolation Signal Calibration
p.53
High Speed Machining of Difficult-to-Machine Materials under Different Lubrication Conditions
p.60

Design and Development of a Novel Coordinate Measuring Machine with 3-PUU Parallel Mechanism

Article Preview

Abstract:

A bran-new style coordinate measuring system with 3-PUU parallel mechanism and its advantages was proposed which could realize 3D measurement with only one linear grating and two precision guides. Firstly, measuring space with a 0.05mm error of structure parameter as target was explored based on 6 bars direct kinematics model, workspace and error model, and then the principle of maximum measuring space was presented to elaborate the relationship between measuring space and length of bar. Then in order to enlarge the scale of measuring space of Coordinate Measuring Machine (CMM), improve the measuring accuracy and flexibility of CMM, the key dimensions and positional parameters of CMM were optimization designed according to the direct kinematics model and the principle of maximum measuring space. Finally the deformation of key components was processed by Finite Element Method (FEM) according to the motion characteristics and parameters of the new CMM prototype, so that the affect of deformation to measuring accuracy can be controlled and decreased. Results are shown that the measuring space of CMM is 1100mm in x axis, 535mm in y axis, 426mm in z axis; deformation of beam is the main reason to influence the measuring accuracy and should be offset after calibration.

You might also be interested in these eBooks
Precision Engineering and Nanotechnology V View Preview

Info:

Periodical:

Key Engineering Materials (Volume 625)

Pages:

34-41

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.625.34

Citation:

Cite this paper

Online since:

August 2014

Authors:

Song Yuan Li*, Peng Hao Hu

Keywords:

Coordinate Measuring Machine, Finite Element Analysis (FEA), Parallel Mechanism, Structure Design

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

References

[1] Harada T, Dong K, Itoigawa T. Design optimization of active scanning probe using parallel link mechanism. International J. of Precision Engineering and Manufacturing, 2012, 13(8): 1387-1394.

DOI: 10.1007/s12541-012-0182-4

Google Scholar

[2] Moriwaki T. Multi-functional machine tool. CIRP Annals-Manufacturing Technology, 2008, 57(2): 736-749.

DOI: 10.1016/j.cirp.2008.09.004

Google Scholar

[3] HU P H, YANG J H, HE X H. 3-pss parallel CMM. China Patent 201010541816. 7, (2011).

Google Scholar

[4] Li Y, Xu Q. Kinematic analysis of a 3-PRS parallel manipulator. Robotics and Computer-Integrated Manufacturing, 2007, 23(4): 395-408.

DOI: 10.1016/j.rcim.2006.04.007

Google Scholar

[5] Cheng G, Ge S R, Wang Y. Error analysis of three degree-of-freedom changeable parallel measuring mechanism. J. of China University of Mining and Technology, 2007, 17(1): 101-104.

DOI: 10.1016/s1006-1266(07)60022-4

Google Scholar

[6] Iimura K, Kataoka E, Ozaki M, et al. The uncertainty of parallel model coordinate measuring machine. Mapan, 2011, 26(1): 47-53.

DOI: 10.1007/s12647-011-0005-6

Google Scholar

[7] Meng Z, Che R S, Huang Q C, et al. The direct-error-compensation method of measuring the error of a six-freedom-degree parallel mechanism CMM. J. of materials processing technology, 2002, 129(1): 574-578.

DOI: 10.1016/s0924-0136(02)00643-x

Google Scholar

[8] HU P H, LI S Y. Kinematics solution of 3-PSS parallel mechanism and its application in parallel CMM. Optics and Precision Engineering, 2012, 4(20): 782-788.

DOI: 10.3788/ope.20122004.0782

Google Scholar

[9] Li S P, Li S Y, Zhao P, et al. Key errors analysis and simulation of a 3-PUU parallel CMM. Proc. of SPIE Vol. 2013, 8916: 89160G-1.

Google Scholar

[10] Li S Y, Hu P. Analysis and optimization of measuring space for the 3-PSS parallel CMM. 2012 International Conference on Optoelectronics and Microelectronics (ICOM). IEEE, 2012: 437-442.

DOI: 10.1109/icoom.2012.6316310

Google Scholar