Pretreatment device for detecting size of inner cavity of revolving body

The invention provides a pretreatment device for detecting size of an inner cavity of a revolving body, and belongs to the technical field of detection of the size of the inner cavity of the revolvingbody. The pretreatment device comprises a feeding conveying line and an opening and inner cavity cleaning device, wherein the opening and inner cavity cleaning device comprises an opening cleaning assembly, a radial pressing assembly and an inner cavity cleaning assembly positioned behind the opening cleaning assembly; and the opening cleaning assembly comprises a cleaning brush unit and a tail pressing unit which are arranged on the two sides of the feeding conveying line. According to the pretreatment device for detecting the size of the inner cavity of the revolving body, the automation ofcleaning of an opening and a cavity of the to-be-detected revolving body (a bullet housing or a similar structure) is realized, and the accuracy of subsequent detection is improved. 本发明提供一种回转体内腔尺寸检测预处理装置，属于回转体内腔尺寸检测的技术领域，包括上料