SU21103A1 - Device for bending the tab on the spiral spring - Google Patents

Description

The proposed device is assigned to bend the tab in the spiral springs without heating; during operation, it is clamped in an ordinary metal vice.

FIG. 1 of the drawing, the device is shown in perspective, and FIG. 2, 3, and 4 — in horizontal and in two side projections.

The fixture consists of two separate pads 3 and 5, each having semicircular cuts on the side wall, which, when these walls of both pads come together, form a vertical round hole 2 in which the spring to be processed is clamped. The pads are pulled apart between the springs 4, mounted on two horizontal guide pins 9 inserted into the pads. On the top of the block 3, a plate 8 is fastened with screws, which is the top stop for the turns of the spring being processed between the pads. Top coil designed for

the bend in the eyelet remains above the plate 8 (Fig. 1). On the pin 1, the pads 3 can rotate, as on an axis, two levers 7 and 6. The first of these is provided with a tooth 12, for which a groove 11 is made on the block 5. 1. The second lever b is provided with a protrusion .10 with a profile that promotes the elevation of the shifted coil into a vertical position and the formation of an ear from it, while rotating the pbmara 6.

The subject matter of the invention.

A device for bending the tab on a spiral spring, characterized in that in one of the pads 3 and 5 between which the spring is clamped, the levers 7 and 6 are fixed on a common axis, and the first of which is provided with a tooth 12 for moving the spring coil and the second protrusion 10 , whose profile contributes to the rise of a coil.

E to the author's testimony of D. A. Petukhov and N. P. Avdeev 21103

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