DEVICE FOR BENDING EDGES OF SHEET WORKPIECES Russian patent published in 2023 - IPC B21D5/14 

FIELD: metal forming.

SUBSTANCE: invention can be used when bending the edges of large sheet blanks. The device contains a support frame, a table for the workpiece, a mechanism for pressing it, deforming and supporting elements. The racks are mounted on the support frame with the possibility of rotation relative to the adjustable axis. The clamping mechanism is made in the form of clamping the central part of the workpiece, moved in the vertical direction, and additional clamping of the workpiece in the deformation zone. The deforming element is made in the form of a deforming shaft, the position of which is adjustable in the vertical and horizontal directions. The support element is made in the form of a support shaft. These shafts rotate in opposite directions with an equal linear speed equal to the speed of rotation of the racks. An additional clamp is fixed between the posts with the ability to rotate together with the shafts and posts.

EFFECT: improvement in the quality of the resulting hemmed edge of the workpiece and saving of material.

6 cl, 3 dwg