公开(公告)号：US20180304446A1

公开(公告)日：2018-10-25

申请号：US15956776

申请日：2018-04-19

Applicant: Eaton Intelligent Power Limited

Inventor： Martin MAUBACH

IPC: B25B5/08 ,  B23Q3/08

CPC classification number: B25B5/087 ,  B21D19/06 ,  B21D19/12 ,  B21D19/16 ,  B21D39/203 ,  B21D41/023 ,  B21D41/025 ,  B23Q3/082 ,  B23Q2703/02 ,  B23Q2703/12

Abstract: An arrangement for working a tube end includes: an operating cylinder with a piston displaceable along an longitudinal axis; and a tube mounting, a tool holder being provided at an end of the piston facing the tube mounting. The operating cylinder is provided as a tandem cylinder. At least two cylinder stages are offset along the longitudinal axis. The piston includes connected piston segments, each piston segment being allocated to a cylinder stage.