公开(公告)号：JP2002263777A

公开(公告)日：2002-09-17

申请号：JP2002004348

申请日：2002-01-11

Applicant: EMHART INC

Inventor： OPPER REINHOLD ,  MOESER JOACHIM ,  BLOECHER MICHAEL

IPC: B21J15/02 ,  B21J15/10 ,  B21J15/28

Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for rivet-connection or punching-out, particularly, precisely performing the rivet-connecting or the punching-out process. SOLUTION: In the method for the rivet-connection of the punching-out by using the rivet-connection or the punching-out apparatus, with which a pick-up device 4 and a male type die guided with the pick-up device, are provided and both can be shifted to a female type die or a working material, and the female type die is connected with this apparatus through a reaction structural body 9, a relative shifting between the pick-up device 4 and the reaction structural body 9 is measured with a first sensor 1 and a relative shifting between the reaction structural body and the male type die, is measured with a second sensor 2, and the depth of the rivet-connection or the punching-out, is adjusted with two measured values. A related device can quickly and accurately detect the working material, or can perform the precise punching-out or the rivet- connection at a constant prescribed depth, regardless of the change of the quality of a material or the other parameter causing the deformation of the reaction structural body 9 during punching-out process.

公开(公告)号：DE10121219A1

公开(公告)日：2002-10-31

申请号：DE10121219

申请日：2001-04-30

Applicant: EMHART INC

Inventor： BLOECHER MICHAEL ,  OPPER REINHOLD ,  MOESER JOACHIM

IPC: B21J15/02 ,  B21J15/28

Abstract: Force is applied to a C-shaped counterforce structure (9) carrying a workpiece (6) to produce deformation. Operating force is corrected to a predetermined amount, to produce a uniform deformation by measuring the deformation. Independent claims are included for the following: (1) a riveting device; and (2) a piercing device.

公开(公告)号：DE10101724A1

公开(公告)日：2002-07-18

申请号：DE10101724

申请日：2001-01-15

Applicant: EMHART INC

Inventor： BLOECHER MICHAEL ,  MOESER JOACHIM ,  OPPER RHEINHOLD

IPC: B21J15/02 ,  B21J15/28 ,  B21J15/10

Abstract: Force is applied to a C-shaped counterforce structure (9) carrying a workpiece (6) to produce deformation. Operating force is corrected to a predetermined amount, to produce a uniform deformation by measuring the deformation. Independent claims are included for the following: (1) a riveting device; and (2) a piercing device.