This paper presents a detection method for hourglass worm based on followup prepositioning technology, by establishing theoretical model of the corresponding relation between the movements of the worm and the probe. The probe coordinate of next sample point is mapped through the actual motion coordinate measured at each sample point. And then the probe is located to the next sample point in advance by using the precision motion control based on time subdivision. This detection method can realize online servo measurement for machining error of hourglass worm and actual space spiral measurement under specific throat radius. The actual surface contour of hourglass worm is constructed by helixes in different throat radiuses, then the machining error can be obtained by comparing the contour with theoretical model. The detection system, which includes host and slave subsystems, is designed according to this method.
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王阳阳,彭东林,陈锡候,张天恒,周青青.基于随动控制的蜗杆检测系统设计[J].机床与液压,2016,44(6):102-106. . Worm detection system design based on follow-up control method[J]. Machine Tool & Hydraulics,2016,44(6):102-106