Integrated Linear Motor Sliding Table With Deformation-Resistant Base
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Solution Overview
Problem
Existing embedded guide rail linear motor modules suffer from base deformation due to magnetic attraction force, affecting precision and stability, and generate noise due to large operating clearances and electrical corrosion from magnetic fields.
Innovation Solution
A linear motor with an integrated mover and sliding table, featuring a magnetic rail embedded in a recess of the base, a guide rail on the outer side wall, and a sliding structure with rolling balls, minimizing deformation and noise by optimizing the magnetic field interaction and reducing clearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the base accommodates the mover through a concave cavity to make the structure compact, then the device complexity is reduced and compactness is improved, but the base is prone to deformation due to magnetic attraction force
Solution Approach 1:
The patent divides the base into two functional parts: a flat outer side wall that provides structural support and resists deformation, and an inner recess that accommodates the mover. This segmentation allows the base to maintain compactness while preventing deformation through the rigid outer structure.
Solution Approach 2:
The patent applies different structural qualities to different parts of the base: the outer side wall is designed with sufficient thickness and rigidity to resist magnetic attraction forces, while the inner recess is optimized for compact mover accommodation. This local differentiation resolves the contradiction between compactness and deformation resistance.
2Manufacturing precision
If the mover and sliding table are integrally potted together, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The patent merges the mover and sliding table into a single integral structure through potting, eliminating the need for separate components and assembly processes. This merging improves manufacturing precision by ensuring perfect alignment and connection between the two elements, while the potting process itself is a straightforward manufacturing technique that does not significantly increase device complexity.
3Manufacturing precision
If the guide rail is embedded in the base, then the manufacturing precision is improved, but the base structure becomes more complex
Solution Approach 1:
The guide rail is pre-embedded into grooves formed on the outer side wall of the base during base manufacturing. This preliminary action ensures precise guide rail positioning and alignment, while the grooves are simply structural features of the base that do not significantly complicate the overall base structure.
4Force
If rolling balls are used in the sliding structure, then the friction is reduced, but the device complexity increases
Solution Approach 1:
The patent replaces direct sliding contact with rolling contact by incorporating rolling balls between the sliding assembly and guide rail. This substitution dramatically reduces friction forces, while the rolling balls are integrated into the sliding structure in a straightforward manner that does not significantly increase device 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
Ensures precise and stable operation, reduces noise, and enhances production efficiency by preventing base deformation and electrical corrosion, while optimizing the motor's compactness and lubrication.
Implementation Method 1
The working principle is the same as that of general linear motors, which all drive the mover to make linear motion on the guide rail through electromagnetic force
Implementation Method 2
The sliding structure includes a recirculator, the recirculator is provided with a plurality of rolling balls, the guide rail is provided with a sliding groove, and the plurality of rolling balls are in rolling connection with the sliding groove
Data Source
AI summary
This application discloses a linear motor with an integrated mover and sliding table, which includes a sliding assembly, a base, a magnetic rail, a sliding structure, and a guide rail, the magnetic rail is connected to the base, the sliding assembly is provided with a mover. The base is provided with a first surface facing the sliding assembly, and a recess opening on the first surface, the magnetic rail is filled in the recess, and the magnetic rail is provided with a second surface facing the sliding assembly, which is flush with the first surface; the guide rail is provided on an outer side wall of the base, located on one side of the first surface away from the sliding assembly.