Active and passive flexible manipulator device for pneumatic measurement of outer diameter of cylindrical part

An active and passive flexible manipulator device for pneumatic measurement of the outer diameter of a cylindrical part comprises a bearing shell, the bearing shell is composed of a shell upper end disc, a shell lower end disc and a supporting rod, an air cylinder assembly is installed on the shell upper end disc, and a telescopic rod of the air cylinder assembly is connected with a flexible platform assembly through a connecting assembly. Wherein the flexible platform assembly comprises a platform upper end plate, a platform lower end plate and an elastic body, the platform lower end plate is connected with the manipulator grabbing assembly, and the grabbing tail end of the manipulator grabbing assembly is located below an end disc at the lower end of the shell; a two-dimensional micro-motion platform assembly is installed on the lower surface of an end disc at the lower end of the shell and comprises a micro-displacement driver, a guide rail and an output platform, and a pneumatic measuring assembly used fo