What is the working principle of CNC spiral CNC spring machine

By pressing and rotating the wire through one or more pairs of rollers to push it forward, and forming the wire through the limiting and guiding actions of the upper and lower annular rods; The steel wire continuously moves forward in each chute of the upper and lower ring rods, and the size of the coil diameter can be controlled by controlling the position of the upper and lower ring rods. The pitch rod is a vertical paper movement used to form the thread angle of the winding line; By controlling and adjusting the position of the pitch lever, the spring spacing can be controlled. After the winding is completed, use a cutting knife to cut the steel wire; The spindle serves as a support for cutting steel wires through a cutter.

CNC spring machines can wind various cylindrical compression springs, such as variable ring diameter and variable pitch, by combining wire feeding rollers, upper and lower ring diameter rods, pitch rods, and cutters. For mechanical spiral spring machines, due to having only one power mechanism, each actuating rod is fully connected through working mechanisms such as gears, cams, and clutches, its structure is relatively complex and adjustment is time-consuming. Whenever a spring type is changed, it is usually necessary to trim the cam shape.

The operator's technical level is relatively high, especially the adjustment range of line length depends on the size of the sector gear, which limits the free length of the spring.. When the unit gear returns, the wire feeding roller needs to be disengaged through the clutch, which not only increases noise but also reduces the wire feeding accuracy during the winding process.