hammasjyrsimet

Hammasjyrsimet, or gear hobbing machines, are specialized machine tools used for the production of gears. They employ a rotating cutter, known as a hob, which has cutting teeth along its surface. The hob rotates and moves axially across the workpiece, which is also rotating in a synchronized manner. This controlled relative motion between the hob and the workpiece creates the desired gear tooth profile.

The hobbing process is a cold forming or cutting operation that can achieve high accuracy and surface finish on the gear teeth. Different types of hobs are available, designed for specific gear forms such as spur gears, helical gears, and worm gears. The machine's kinematic system precisely controls the rotation of both the hob and the workpiece, ensuring the correct tooth spacing and profile.

Gear hobbing is a widely used manufacturing method due to its efficiency and ability to produce complex gear geometries. It is particularly suited for mass production of gears, offering a cost-effective solution. The process requires careful selection of the hob, cutting speed, feed rate, and depth of cut to optimize the machining process and achieve the desired gear quality. Maintenance of the hobbing machine and the hobs themselves is crucial for consistent and accurate gear production.