With the current introduction of its 1FN6 linear motors, Siemens now presents three fashions of linear motors for seamless integration with all Sinumerik or Simotion management techniques utilizing Sinamics drives. Linear scales for place and velocity suggestions can be found from quite a lot of third-party suppliers to go well with the appliance. The brand new linear motor fashions provided by Siemens are:
1FN3 Peak Load Motors: Brief time, excessive acceleration/deceleration and velocity charges corresponding to S3 obligation. Can be utilized for horizontal or compensated vertical axes. Nominal Pressure (Fn) 8,100N. Most Pressure (Fmax) 20,700N. Most velocity 253m/min with liquid cooling.
1FN3 Steady Load Motors: Lengthy power-on period for horizontal, inclined or compensated vertical axes. Akin to S1 obligation. Nominal Pressure (Fn) 10,375N. Most Pressure (Fmax) 17,610N. Most velocity 129m/min with liquid cooling.
1FN6 Magnet Free Secondary: Best for lengthy traverse lengths at excessive acceleration and velocity charges. Magnet free secondary and air convection cooled design. Can be utilized for horizontal, inclined, or compensated vertical axes. Nominal Pressure (Fn) 2,110N. Most Pressure (Fmax) 8,080N. Most velocity 532m/min with air convection cooling.
Notice: 1FN3 Peak and Steady load motors may be run with air convection cooling, nevertheless rankings should be diminished by 50%.
One linear motor stationary observe (both with magnets or magnet-free) can help a number of major sections shifting both the identical slide in a master-slave configuration or shifting separate slides independently at totally different charges and in several instructions. This permits the designer to consolidate drive techniques on a number of slide machines for value effectivity and higher productiveness.
When shifting massive heavy gantry model slides, a number of major sections can be utilized on both facet of the shifting gantry to supply the pressure essential to speed up and decelerate the slide to optimally productive velocities. As well as, a number of secondary tracks may be put in facet by facet, if further pressure is required.
On shifting slides the place cable size or motion is an issue, a number of major sections may be fastened to a stationary base and the secondary sections hooked up to the shifting member. This lightens the load on the shifting slide and permits cycles that embody excessive oscillation charges that may in any other case be inconceivable with typical mechanical drive techniques. It additionally permits shorter cable lengths with much less flexing.
Benefits of linear motors in machine purposes:
- Excellent dynamic response
- Excessive acceleration/deceleration
- Excessive traverse velocity over lengthy distances at fixed speeds
- Backlash free positioning; now not any want for “Ballscrew Compensation”
- Simple set up with a minimal of parts
- Contactless drive with no mechanical put on
- Design flexibility; major sections may be stationary or shifting