Planar Drive Rotor Positioning With Smooth Travel and Rotation
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Solution Overview
Problem
Planar drive systems with round coil groups are inefficient in linear translational movement, leading to restless and jerky travel movements, while those with rectangular coil groups are limited in rotor rotation and positioning flexibility.
Innovation Solution
A planar drive system with rectangular and elongated coil groups and magnet units arranged at right angles, allowing for vector superimposition of movements for free positioning of the rotor, combined with a control unit for precise control of the rotor's rotation and movement, enabling flexible processing of objects through interaction with a processing element during rotor rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If round coil groups are used in planar drive systems, then rotor rotation capability is improved, but linear translational movement becomes erratic and jerky
Solution Approach 1:
The coil system is divided into multiple independent rectangular coil groups arranged in a grid pattern, with each coil group capable of being independently controlled. This segmentation allows the system to generate forces in multiple directions simultaneously, enabling both smooth linear movement and rotation without the instability associated with round coil groups.
Solution Approach 2:
Rectangular coil groups with different dimensions in orthogonal directions create asymmetric force characteristics that are optimized for linear motion. The elongated shape provides better force linearity compared to round coils, while the asymmetric arrangement of multiple rectangular coils enables rotational capability through differential activation.
2Reliability
If rectangular and elongated coil groups are used in planar drive systems, then linear translational movement is improved, but rotor rotation capability is limited
Solution Approach 1:
Multiple rectangular coil groups are merged into a unified grid arrangement, combining the linear motion advantages of rectangular coils with the rotational capability achieved through coordinated activation of adjacent coils. The merging of multiple coil groups creates a composite system that delivers both smooth translation and rotation.
Solution Approach 2:
The system transitions from single-direction force generation to multi-dimensional force control by arranging rectangular coil groups in a two-dimensional grid. This dimensional expansion allows independent control of forces in x and y directions, enabling both linear movement and rotation through vector superposition of forces from different coil groups.
3Adaptability or versatility
If rectangular coil groups with two different main directions are used, then free positioning of rotor is achieved, but system complexity increases
Solution Approach 1:
The rectangular coil groups serve multiple functions simultaneously: they generate forces for linear movement in x and y directions, produce rotational torque through differential activation, and enable positioning control. This multi-functionality reduces the need for separate mechanisms for each degree of freedom, managing complexity through functional integration.
Solution Approach 2:
The system employs dynamic control of coil activation patterns, where different subsets of rectangular coil groups are energized based on the desired motion trajectory. This dynamic switching between different coil activation modes enables flexible positioning and motion control without requiring permanent mechanical complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for flexible and precise processing of objects, including screwing, labeling, and stirring, by enabling the rotor to rotate and move relative to the processing element in various positions, overcoming the limitations of existing systems in both linear and rotational movements.
Implementation Method 1
a driving force is exerted on the rotor by energized coil groups of the stator unit magnetically interacting with drive magnets of several magnet arrangements of the rotor
Implementation Method 2
In a permanently excited electromagnetic planar motor, a driving force is exerted on the rotor by energized coil groups of the stator unit magnetically interacting with drive magnets
Data Source
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AI summary
The invention relates to a method for processing an object (20) by means of a planar drive system (1). The planar drive system (1) has - at least one stator unit (3), each unit having a plurality of coil groups (4) for generating a stator magnetic field; - a stator surface (5) above the stator unit (3); and - at least one rotor (10) having a plurality of magnet units (11) for generating a rotor magnetic field. A processing element (100) is positioned above the stator surface (5). The planar drive system (1) has at least one rotation position (7), the rotor (10) being rotatable in the rotation position (7) about an axis of rotation (13) perpendicular to the stator surface (5). A spatial arrangement of the processing element (100) is predetermined by the rotation position (7). The method comprises the following steps: - energising the coil groups (4) in such a way that the rotor (10) moves with the object (20) located on the rotor (10) into the rotation position (7); - energising the coil groups (4) in such a way that the rotor (20) rotates; - processing the object (20) by means of the rotor rotation, the processing element (100) acting on the object (20).