Research of Automatic Measurement Technology for Oil Thimble External Thread Parameters

Abstract:

There are many problems for manual measurement of oil thimble external thread parameters: human error, low efficiency, low precision for measuring instruments and high abrasion for its measuring head, so photology automatic measurement method is adopted. Automatic measurement is finished by the following method: obtaining image by plane Matrix CCD and a two-DOF motion platform, extracting digital image by digital image processing techniques, getting the thread parameters by reasonable algorithms and digital image detection technology. Through field experiment of measuring instrument prototype for TYG type oil thimble external thread parameters, Data error is very small, obtained data is precise, measuring efficiency and precision for measuring instrument are high, there is no equipment abrasion problem for the measurement process, the method is feasible.

• Periodical: Key Engineering Materials (Volumes 579-580)
• Pages: 558-563
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.579-580.558
• Online since: September 2013
• Authors: Yong Geng Wei, Zhong Xian Wang
• Keywords:

  Found Keywords

  Digital Image

  , Automatic Measurement Technology, Oil Thimble External Thread Parameters, Plane Matrix CCD

References

[1] D.C. Hu, J.G. Chen: Fourth International Symposium on Precision Mechanical Measurements, (2008).

[2] C. Yi, D. Michael: New York: American Institute of Physics, 2007. 10. 5.

[3] J. Cosp, J. Madrenas and D. FernándezD: Neurocomputing, Vol. 69(2006) No. 16/18, p.1962-(1970).

[4] S.R. Taneja, R.C. Gupta: J. Automated Methods & Management in Chemistry, Vol. 4(2005), pp.223-229.

[5] R. Wang: Study on the tubing thread measuring method based on digital image processing(Master, Wuhan University of Technology, China 2009), pp.2-5. (In Chinese).

[6] J.F. Ding, Y.H. Kang, X.J. Wu: Modern scientific instruments, Vol. 5 (2007), pp.89-92. (In Chinese).

[7] Z.W. Chang, R.J. Zhang, F.Y. Zhang: Pipeline technology and equipment, Vol. 4 (2008), pp.21-23. (In Chinese).

[8] X.D. Bao: Research of Non-contact Detection System for YTG-type External Thread Parameters (Master, Harbin Engineering University, China 2010), pp.1-5. (In Chinese).

[9] J.H. Jian: Research on Measuring Technology for Taper Thread's Dimensions Based on CCD (Master, Harbin Institute of Technology, China 2006), pp.3-8. (In Chinese).

[10] K.G. Wang and G.H. Geng: Journal of Xi'an University of Science And Technology, Vol. 9 (2008) No. 3, pp.577-580. (In Chinese).