Bending tool
AssigneeHaennerle A.G.
InventorsEduard J. Haenni, Vaclav Zbornik
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Abstract
A bending device comprising a bar for connection at one end to a ram of a bending press, the bar having a tapered end fitting into a bending matrix fitted with a displaceable jaw. A sheet of metal placed on the matrix is bent by the bar which is forced down by the ram into a longitudinal groove of the matrix. Means are provided at the side of the matrix to determine the limiting plane of the groove and thereby control the angle and further means vary the depth of the groove.
Claims5
A bending device adapted to be connected to a bending press for the bending of sheet metal in said press, comprising in combination:
- a male bending die adapted to be connected to the ram of the bending press with a tapered end, and a female bending die resting on a die support, said female die having a longitudinal groove on its top side facing said male die and cooperating with said tapered end of said male die;
- said longitudinal groove determining by its width and depth the bending angle to be achieved in the sheet metal workpiece fitted between said male die and female die whereby at least one of the limiting planes of the groove is displaceable in its position relative to the other limiting planes of the groove to change the shape of the groove and thereby the angle to be bent in the sheet metal;
- a displaceable jaw on said female die to change the width of said groove, said jaw having a first guide means protruding from said displaceable jaw and engaging a first guide notch in the base part of said female die, said first guide means and said first guide notch extending in an angle to said groove, the width of said groove thereby changing by sliding said first guide means along said first guide notch, and
- a displaceable support means to change the depth of said groove, said support means resting on a second guide means arranged in a second guide notch in said die support of said female die, a displacement of said second guide means varying the depth of said groove.
Dependencies are inferred from the claim text.