The linear motor module's direct drive feature fundamentally changes the power transmission path of traditional transmission methods, providing a key guarantee for eliminating transmission backlash and improving positioning accuracy. Traditional transmission systems typically transmit power through intermediate components such as gears and lead screws. The meshing or connection between these components inevitably introduces backlash. Direct drive eliminates these intermediate links, allowing power to act directly on the moving parts, reducing the potential for backlash at the source and laying the foundation for high-precision positioning.
By eliminating intermediate transmission components, direct drive completely eliminates positioning errors caused by clearance between components. In traditional transmissions, backlash between gears and lead screws can cause lag or lost motion in power transmission. When reverse motion is required, these backlashes can cause deviations between the actual position and the command position, affecting positioning accuracy. The linear motor module's direct drive directly connects the moving parts to the power source, eliminating backlash between intermediate components. Command signals are directly converted into motion, eliminating positioning errors caused by backlash and ensuring more accurate and reliable positioning.
This feature reduces the impact of elastic deformation during transmission on positioning accuracy, ensuring instantaneous motion response. Traditional intermediate transmission components experience a certain amount of elastic deformation when subjected to force. This deformation causes a delay in power transmission, leading to a misalignment between the actual position of the moving component and the commanded position. This deformation-induced error is particularly pronounced under high-speed or frequent start-stop conditions. Direct drive eliminates the intermediate elastic link, shortens the power transmission path, minimizes deformation under force, and enables the moving component to quickly respond to control commands, reducing positioning errors caused by deformation and improving dynamic positioning accuracy.
The direct drive feature eliminates the need to overcome backlash when switching between forward and reverse motion, ensuring consistent positioning. Traditional transmission systems must overcome backlash before moving the load in reverse. This backlash causes differences in positioning accuracy in both directions, impacting repeatability. However, direct drive linear motor modules eliminate backlash when switching between forward and reverse motion, allowing the moving component to instantly respond to directional changes, maintaining consistent positioning accuracy in both directions. This significantly improves positioning accuracy in complex trajectory motion.
Under high-speed operating conditions, the direct drive feature reduces vibration and shock caused by backlash, maintaining positioning stability. The clearance in traditional transmission systems causes impact and vibration between components during high-speed motion. This vibration not only affects positioning accuracy but can also induce resonance, further amplifying errors. The direct drive of the linear motor module eliminates the impact and vibration caused by clearance, resulting in smoother motion. This maintains stable positioning accuracy even at high speeds, reduces positional deviation caused by vibration, and ensures high-speed processing or operation quality.
The direct drive feature helps improve the rigidity of the positioning system and mitigates the impact of external load fluctuations on positioning accuracy. Intermediate components in traditional transmission systems reduce overall rigidity and are prone to elastic deformation when loads fluctuate, leading to positioning errors. The direct drive linear motor module, however, offers greater rigidity and can more stably withstand load variations, reducing positional deviation caused by load fluctuations. This allows the equipment to maintain consistent positioning accuracy under varying load conditions and enhances the system's adaptability to complex operating conditions.
Furthermore, the direct drive feature reduces the maintenance requirements of the transmission system, indirectly ensuring stable positioning accuracy over long-term operation. The clearance of traditional transmission components will gradually increase due to wear as the usage time increases, and regular adjustment or replacement is required to maintain accuracy. Direct drive reduces the number of intermediate components that are prone to wear and reduces the possibility of clearance changes over time. The equipment can still maintain good positioning accuracy during long-term operation, reducing the accuracy degradation caused by improper maintenance or wear and tear, and extending the high-precision operation cycle of the equipment.
