A forming machine comprises a rotatingly drivable gripping device (1) for gripping a forming tool (2) and a material plate (3) to be formed, a movable lower slide (6), a first drive (8) for moving the lower slide, a movable upper slide (10, 35) mounted on the lower slide, a second drive (11, 34) for
A forming machine comprises a rotatingly drivable gripping device (1) for gripping a forming tool (2) and a material plate (3) to be formed, a movable lower slide (6), a first drive (8) for moving the lower slide, a movable upper slide (10, 35) mounted on the lower slide, a second drive (11, 34) for moving the upper slide and a holder (5) for a forming roller (4) supported on the upper slide (10, 35). A control unit (16) is provided for controlling the movement of the forming roller (4) by actuating both drives (8; 11, 34), the control unit being connected to a detector (18, 21) for determining the force exerted on the forming roller (4) and to a detector (17) for determining the position of the lower slide (6). A memory (25) is connected to the control unit for storing corresponding force/position values. The control unit (16) is adapted to control the movement of the forming roller (4 ) in dependence on the force/position values stored in the memory (25). The forming roller (4) is coupled to the second drive (11, 34) through a spring (13, 38) with a given spring characteristic. The detector (18, 21) for determining the force exerted on the forming roller consists of a position detector (18, 21) for determining the compression of the spring (13, 38).
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Forming machine comprising a rotatingly drivable gripping device for gripping a forming tool and a material plate to be formed, a movable lower slide, a first driving means for moving the lower slide, a first detector for determining the position of said lower slide with respect to a first reference
Forming machine comprising a rotatingly drivable gripping device for gripping a forming tool and a material plate to be formed, a movable lower slide, a first driving means for moving the lower slide, a first detector for determining the position of said lower slide with respect to a first reference, a movable upper slide mounted on the lower slide, a second driving means for moving the upper slide, a forming roller, a holder mounting said forming roller and supported on the upper slide, a second detector for determining the position of said upper slide, with respect to a second reference, a control unit controlling the movement of the forming roller by actuating both said driving means, said control unit being connected to said detectors, wherein a memory is connected to the control unit for storing position values of said slides, the control unit being provided to control the movement of the forming roller in dependence on the position values stored in said memory, wherein the forming roller is coupled to the second driving means through a spring means with a given spring characteristic; and a third detector for determining the compression of said spring means, said third detector being connected to the control unit, wherein the control unit operates the second driving means to withdraw the upper slide when a preselected spring compression is exceeded as detected by said third detector.
James, Michael Royston; Mahoney, Murray W.; Waldron, Douglas J.; Prevey, III, Paul S., Apparatus and method for forming weld joints having compressive residual stress patterns.
Brossia Charles E. (Highlands Ranch CO) Talbott Roblee L. (Golden CO) Peterson Ronald B. (Arvada CO) Williams Warren R. (Fort Collins CO), Method and apparatus for doming can bottoms.
Haas, John E.; Unger, Larry J.; Lascelles, Russell A.; Prevey, Michael P.; Prevey, III, Paul S., Method and compression apparatus for introducing residual compression into a component having a regular or an irregular shaped surface.
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