|
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: High-lead ball-nut Gothic arc Form grinding Wheel profile Interference
CLC No:
TH16
国家自然科学基金(10476026)、国家高技术研究发展计划(863计划，2004AA84ts03)和浙江省自然科学基金(Y106655)资助项目.
Received
20070104,
received
in
revised
form
20070914
|