Spring coiling machine with hybrid servo motor-cam torsion control

摘要

A spring coiling machine has a feed assembly with a servo motor for driving the feed rolls. Substantially all tooling including a coiling tool, a pitch tool and an auxiliary arbor are also servo motor operated with three axes of servo control including a "torsion" axis provided for the coiling tool. The auxiliary arbor has a plurality of wire forming positions and is also servo motor controlled. The "torsion" movement for the coiling tool is controlled by a servo motor-cam mechanism for accurate high speed operation with a high frequency of torsion movement of the coiling tool.