Clappers positioning structure, the agency adopts cantilever structure, installed on the frame of the agency, the agency by coarse location size, fine adjustment clappers, around through the cylinder to size the incoming products positioning.The advantages of this mechanism are: 1. Large size coarse adjustment structure, 2. Small size cylinder positioning size.In this paper, the accuracy of positioning and the classic reliable model are obtained by using the two methods.This model is transformed into step and iges general model download, please refer to!Also includes 3d original files, welcome to download!if you like,you can paypal for you to get this models or if you have any questions also you can email to me.