More competitive with better positioning systems

Users may improve the machine’s movement in order to make it more competitive and so get more selling points, all of this with at almost no extra cost.

From a kinematic point of view, the reduction of components also means the reduction of vibrations, bouncing, resonances and natural frequencies. The stiffness loop may be increased and by that an overall smoother movement of the stage may be achieved. This all simplifies the control loop and avoids superfluous adjustments of the software.

The commissioning technicians are happy to have a ‘straightforward’ machine which significantly shortens commissioning times.

How the control loop of a machine can be closed?

1. Control loop of a machine with linear positioning through a spindle classical transmission.
2. Control loop of a machine with linear positioning via a classical spindle transmission and an external encoder.
3. Control loop of a machine with linear positioning through a linear motor and an external encoder.
4. Control loop of a machine with linear positioning through a linear motor and an internal encoder.

Check all this kineamtic drawings here.

The improvements in precision and repeatability will be felt as the linear direct encoder will be incorporated into the systems.

Any wrong movement, no matter how small, will be detected and corrected by the controller. The control loop will be quicker, as there are no gears sending back the position’s reference to the servomotor’s encoder. The improvements become then very apparent.