Rotary bending, particularly for press brakes

Details Rotary bending, particularly for press brakes Rotary bending, particularly for press brakes

1982-10-13

1985-08-20

Husar, Francis S.

Metal deforming

Tool and/or tool holder

Having unitary tool-face

72313, 72389, B21D 3704

Patent

active

045356190

ABSTRACT:
Rotary bending apparatus provides a die assembly particularly advantageous for use in press brakes featuring a punch embodying a separable part so constructed and arranged as to render it per se capable of providing the punch with any one of a plurality of operating surface portions which differ in configuration by changing its relative orientation and disposition. It also features, in cooperation with and in opposed relation to the punch, an assembly providing a rotary bending tool comprising a notched rotor contained for rotation in and with respect to a saddle, which is contained, in turn, by and for movement relative to a base member in a construction and arrangement wherein the relative position of the saddle and the rotor may be precisely and quickly gaged by a segment of the sheet material to be worked between the punch and the rotor of the opposed rotary bending tool. A preferred mount of the punch and the opposed rotor as the tooling provided in a press brake has the assembly of each thereof backed by a plate the form and nature of which is such to produce a horizontal stiffening of the ram or bed to which it applies. In using the apparatus in a press brake the sheet material to be worked is introduced between the opposed tools at an acute angle to a horizontal.

REFERENCES:
patent: 2314617 (1943-03-01), Gambino
patent: 2795983 (1957-06-01), Killius
patent: 2919613 (1960-01-01), Crement
patent: 4002049 (1977-01-01), Randolph, Sr.
Cincinnati Shaper Co., Cincinnati Mechanical Press Brakes, p. 36.

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