Two Screws, One Motor, Zero Problems
Linear motion for the positioning of tooling, or driving carriages, is a common requirement in automated machinery. Where dual drives are required, precision gearing is critical for positioning performance. In many applications, a single linear device, such as a ball screw or belt drive, can be driven by a single servo motor, which may or may not include a gearhead to gain additional mechanical advantage. But, for larger or wider loads dual screws are often necessary to provide even or balanced forces. While synchronized master/slave servo motor controls could be used to drive each [...]
