• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 2008, Vol. 44 ›› Issue (1): 109-113.

• Article • Previous Articles     Next Articles

Precise Profile of Grinding Wheel and Interference Elimination for High-lead Ball-nut

LI Lingfeng;CHEN Yuanpeng;LIU Bo   

  1. School of Mechanical and Energy Engineering, Zhejiang University
  • Published:2008-01-15

Abstract: In order to solve interference between wheel shaft and internal surface of ball-nut in the process of high-lead ball-nut grinding, a method for Gothic arc grinding of high-lead ball-nut is presented. The presented method is based on the theoretical fundament of helicoids shape grinding. According to the principle that the contact points of the grinding wheel and the internal surface of the ball-nut form a space curve, a calculation model is established for surface calculation of the grinding wheel, by which collision can be avoided. The method is applicable to calculate the profile of grinding wheel in any angle, as well as to choose the best process parameters for the shape grinding. This method is simple and convenient for modification of grinding wheel shape when it needed. Lastly, taking a high-lead ball-nut as an example, the validity of the method is approved by grinding wheel optimum profile calculation and error analyze of the results.

Key words: Form grinding, Gothic arc, High-lead ball-nut, Interference, Wheel profile

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