How Do Roll Forming Machines Function?
Home / The working principle of the roll forming machine is powered by a motor, which drives the rotation of the main shaft through a transmission system. A three-jaw chuck secures and rotates the workpiece as the primary motion. The rolling head facilitates two secondary movements: longitudinal feed (linear motion along the workpiece’s axis) and…
The working principle of the roll forming machine is powered by a motor, which drives the rotation of the main shaft through a transmission system. A three-jaw chuck secures and rotates the workpiece as the primary motion. The rolling head facilitates two secondary movements: longitudinal feed (linear motion along the workpiece’s axis) and radial feed (controlled inward pressure perpendicular to the axis). These combined motions enable precise shaping, forming, or surface treatment of cylindrical or rotating workpieces through cold deformation.
The workpiece passes through the central hole of the rolling head.Three rollers (one active rolling wheel and two support wheels) are uniformly arranged around the rolling head’s circumference.Before operation, a screw mechanism adjusts the rollers radially to center and clamp the workpiece (centering process).All three rollers rotate synchronously in the same direction as the workpiece’s intended spiral/thread direction, matching its helix angle.The active rolling wheel applies controlled radial feed (inward pressure) to deform the workpiece.
During rotation, friction between the workpiece and rollers drives the rollers to rotate.Axial force generated during rolling causes the rolling head and tailstock carriage to move longitudinally along the machine’s bed rails.
The annular shoulder of the rolling wheel contacts the workpiece, inducing localized stress concentration and plastic deformation.This cold-forming action progressively shapes the material into precise threads or grooves without material removal.
2.What are the advantages of roll forming machines?
The roll forming machines bring multiple benefits in terms of design, manufacturing, and usage.
For the factory, the roll – forming machines eliminate the need for a lathe worth over 20000 USD. Moreover, they allow the lathe to be utilized in other ways to greater functions.
The introduction of roll – forming machines is in line with the demands of mass production. The quality of the products is reliably ensured, with a pass – rate that is nearly 100%.These machines are convenient to operate and have almost no maintenance costs.They lead to a significant reduction in consumption and boost the production efficiency by more than 10 times.
