FIELD: metal forming.
SUBSTANCE: invention relates to the field of metal forming and can be used in the manufacture of coils of flexible screws from ring blanks. Screw coil bending machine contains movable and fixed beds with plates, each of which has two lateral and one central guides. In the guides, respectively, side and central punches are installed, which ensure the formation of a screw coil from an annular blank by bending it. The side guides are made in the form of strips with a groove, which can be fixed on the plates in different positions, in which the angle between the punches installed in them changes.
EFFECT: provides an increase in the manufacturability of the manufacture of the machine, a decrease in its metal consumption and simplification of adjustment, if necessary, to change the geometric characteristics of the coil.
6 cl, 10 dwg, 1 ex
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