Integrated Linear Head Module Housing for Easier Assembly
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Solution Overview
Problem
Existing linear head modules have a complex assembly process and a high number of components, which complicates the integration of linear motors between a frame and a cover, making them difficult to assemble and maintain.
Innovation Solution
A linear head module design that integrates a housing with a reduced number of components, featuring a main body portion with through-holes for bearing holders and a coupling mechanism to simplify assembly, while maintaining the ease of positioning and assembly of output and counter-output side portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a traditional linear head module integrates multiple linear motors between frame and cover, then the module can perform multiple functions, but the assembly process becomes complex and the number of components increases
Solution Approach 1:
The patent merges the frame and cover into a single integrated housing structure that contains multiple linear motors. The housing is designed with integrated features including bearing holders, cooling channels, and mounting structures, reducing the need for separate components and simplifying assembly while maintaining multiple functions.
Solution Approach 2:
The housing structure serves multiple functions simultaneously: it provides structural support, houses multiple linear motors, incorporates cooling channels for thermal management, and includes integrated bearing holders for output members. This multi-functionality reduces component count and assembly complexity.
2Device complexity
If multiple linear motors are integrated into a single housing, then component count is reduced, but positioning precision of output members becomes more difficult to maintain
Solution Approach 1:
The housing incorporates localized precision features at specific positions where linear motors are mounted. Each linear motor assembly includes precisely positioned bearing holders and output members that are locally optimized for accurate positioning. The housing includes dedicated mounting features and alignment structures at each motor location to ensure precise positioning despite the integrated design.
3Ease of manufacture
If the housing is designed with integrated bearing holders and through-holes, then assembly is simplified, but manufacturing precision requirements increase
Solution Approach 1:
The housing is designed with pre-formed bearing holders and through-holes that are integrated into the housing structure during manufacturing. These features are preliminarily positioned and fixed during housing fabrication, ensuring precise alignment before linear motors are assembled. The through-holes and bearing holders are manufactured as integral features with built-in tolerance accumulation control.
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
The design allows for easier assembly and reduced component count, enhancing the assembly efficiency and reducing the complexity of integrating linear units within the module.
Implementation Method 1
a stator having a back yoke extending along the output member, and a coil
Implementation Method 2
the output-side bearing holder having a bearing that supports the output member in such a manner as to be movable in the direction of thrust
Data Source
AI summary
A linear head module includes a plurality of linear units each having an output member, and a housing. The linear unit has a mover and a stator. The stator has an output-side bearing holder and a counter-output-side bearing holder. The housing has: a main body portion integrally including an output-side surface portion, a counter-output-side surface portion, and a coupling portion that couples the output-side surface portion and the counter-output-side surface portion; a flange facing the output-side surface portion; and a bracket facing the counter-output-side surface portion.