Chain spring bending fixture

Abstract

This utility model discloses a bending fixture for spring chain helical springs, including a guide slide and a bending assembly. The bending assembly is connected to a controller. The guide slide has a bending groove perpendicular to it, and the bending assembly is located directly above the bending groove. The bending assembly mainly consists of two bending rods, a rotating mechanism, and a moving mechanism. The bending rods are perpendicular to the guide slide, and their lower ends have forks for holding the helical spring wires. The upper ends of the bending rods are connected to the rotating mechanism, which is fixed to the moving mechanism. When the spring chain is placed in the bending groove of the guide slide, the downward projection of the bending rods falls on the two ends of the helical spring between adjacent spring chain sections directly above the bending groove. The bending rods rotate downward through the rotating and moving mechanisms, causing the forks of the bending rods to hold the spring wires at both ends of the helical spring and bend them. Compared with the prior art, this utility model can effectively improve the bending efficiency of spring chain helical springs.

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