Patent ID: 7788779
Filing Date: 2010-09-07
Classification: B21D,B25B,Y10T

Abstract:
1. A pressing device for the press-joining of tubular workpieces including, a tube, on the one hand, and a fitting slipped onto the tube, with plastic deformation of at least one of the workpieces, the pressing device comprising: first and second press members having first and second ends; first and second pivot members which are connected to one another by a first connection mechanism, said first pivot member being connected to said first press member proximate to said first end thereof by a second connection mechanism, said second pivot member being connected to said second press member proximate to said first end thereof by a third connection mechanism; third and fourth pivot members which are connected to one another by a fourth connection mechanism, said third pivot member being connected to said first press member proximate to said second end thereof by a fifth connection mechanism, said fourth pivot member being connected to said second press member proximate to said second end thereof by a sixth connection mechanism; and first and second auxiliary press members, said first auxiliary press member being secured to said second pivot member, said second auxiliary press member being secured to said fourth pivot member, wherein during a pressing operation, each of said first and second press members and each of said first and second auxiliary press members move radially toward a central longitudinal axis of the workpieces in order to carry out the pressing of the workpieces.