SU119419A1 - Stamp for bending sorted metal - Google Patents

Description

A known stamp for flexible varietal metal with a wedge-shaped movement of the die of the stamp in the horizontal plane.

In comparison with the known stamp, the described stamping bends the bent metal under constant clamping force and excludes folding on the parts and its bending under the influence of residual stresses after bending.

This is achieved by the fact that the die slider is provided with a buffer, elastically pressing it against the bent blank. The drawing shows a diagram of the stamp.

The stamp consists of the following, their main parts: the top plate /, the bottom plate 2, the base 3 with the beveled plane, the slider 4 сО with the beveled plane at the same angle as at the base 3, buffer 5, device 6, die 7, punch 8 , slatted rod 9, which determines the depth of the punch in the die, and interchangeable sets of the working tool.

The device 6 is fixedly mounted on the base 3, and its rack and pinion bar 9 is hingedly connected to the slider 4.

Bending grade metal on the stamp is as follows.

When the traverse of the press is raised, the plate 1, reinforced on the traverse, is in the upper position together with the base 3, the slider 4, the buffer 5 and the device 6. Between the plate 2 and the slider 4 on the matrix 7 freely placed bent workpiece. Buffer 5 holds the slider 4 in its original position.

After lowering the crosshead of the press, the slider 4 and the plate 2 are in contact with their support planes, and the workpiece located on the matrix 7 is pressed tightly against the working planes of the bending tool.

The traverse of the press, lowering together with the plate 1, the base 3, the slider 4 and the buffer 5, moves the slider in a horizontal plane together with the workpiece.

The workpiece, the meeting of the supporting parts of the matrix 7, stops, which allows the punch 8 to bend the workpiece to the required radius of curvature in the working space of the matrix.

After bending, the traverse of the press rises, the slider 4 under the force of the buffer 5 moves horizontally to its original position. Then the slider together with the plate 1, the base 3 and the buffer 5 are raised and release the workpiece from the clamp.

The arching forces that occur in the chipboard during the bending process are self-balancing due to the vertical inner wall of the bottom plate 2.

Subject invention

Stamp for bending of a bent metal with a wedge movement of the stamp ram in a horizontal plane, characterized in that the slide is provided with a buffer that resiliently presses it to the bent blank during the whole bending process in order to prevent the resulting shape from being folded and curved.

Press effort

Do flue bending 0,8 P press