公开(公告)号：JPH1190575A

公开(公告)日：1999-04-06

申请号：JP20561798

申请日：1998-07-21

Applicant: EMHART INC

Inventor： DEIITAA MAUERU ,  HAAMAN REEZERU

IPC: B21J15/00 ,  B21J15/02 ,  B21J15/26 ,  B21J15/28 ,  F16B19/04

Abstract: PROBLEM TO BE SOLVED: To provide the punch rivet joining device which reduces the production cost and monitors the forming of the punch rivet connection to improve the sureness in quality. SOLUTION: A plunger 4 and a lower holding device 5 are driven through a transmission unit 2. The transmission unit 2 converts the rotating motion of a driving unit 1 into the parallel motion of the plunger 4 or the lower holding device 5. An electric motor can be employed for the drive unit 1, and the relative excellent control can be achieved by converting the rotating motion of the driving unit 1 into the parallel motion of the plunger 4. The different plunger speed can be achieved by the process control.