To improve a control method and to fascilitate an automatic quality check in clinching joining method by which a part of a component is forced into a hole on a die which is opposed to a punch in the axial direction of a stroke with the punch, while forcing is performed by bringing plates into mesh; a working stroke is detected at clinching; press force is detected at clinching; and a process signal, that is, the working stroke and/or the press force is processed with a computer to determine the remaining bottom thickness X.
The detection of a process signal, that is, the detection of the working stroke and/or the detection p of the press force is performed at multiple times in each working-stroke motion. These respective detections of the process signal are performed with short time intervals in each working-stroke motion and the calculated results with the computer are used to control clinching process, being performed every time.
| JP2000061559A | 2000-02-29 | |||
| JPH07195133A | 1995-08-01 |
| US20060243013A1 | 2006-11-02 |
Okumura Yoshimichi
Blacksmith
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