Linear Rolling Bearing with Integrated Positioning Pins
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Solution Overview
Problem
The existing linear rolling bearings for electromagnetic drive modules require a base and positioning grooves on a base for precise positioning, increasing manufacturing costs and complexity.
Innovation Solution
A precise-positioning linear rolling bearing with a bearing seat composed of a tube and support, featuring first positioning pins at the support's bottom, which eliminates the need for a separate base and simplifies assembly, while incorporating vent grooves to reduce noise resonance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a base with positioning grooves is used for precise positioning, then positioning precision is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent integrates the positioning function directly into the bearing seat structure by adding positioning pins to the support, merging the positioning function with the bearing support rather than requiring a separate base with positioning grooves. This reduces the number of components while maintaining precise positioning capability.
Solution Approach 2:
The patent extracts the positioning function from the base and relocates it to the bearing seat's support structure. By moving the positioning pins to the support, the design eliminates the need for a separate base component, simplifying the overall structure.
2Manufacturing precision
If a base with positioning grooves is used for precise positioning, then positioning precision is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines the positioning function with the bearing seat support structure, eliminating the need for a separate base component. This reduction in part count directly lowers manufacturing costs while maintaining precise positioning through the integrated positioning pins.
Solution Approach 2:
The patent removes the base component entirely by extracting the positioning function and relocating it to the support structure of the bearing seat, reducing manufacturing complexity and cost.
3Strength
If a closed frame structure is used for support, then structural strength is improved, but noise resonance increases
Solution Approach 1:
The patent applies the porous structure principle by adding vent grooves to the support plates, creating controlled openings in the frame structure. These vent grooves allow noise resonance to escape while maintaining the overall structural integrity and strength of the frame.
Solution Approach 2:
The patent converts the harmful noise resonance into a beneficial outcome by designing vent grooves that allow the resonance to be released in a controlled manner, preventing buildup of harmful vibrations while maintaining structural strength.
Data Source
AI summary
A precise-positioning linear rolling bearing is provided. The precise-positioning linear rolling bearing includes a bearing seat, where the bearing seat includes a tube; a plurality of rolling elements for clamping a telescopic mandrel are provided at each of two ends of the tube; a support for supporting the tube is provided on an outer sidewall of the tube; and at least two first positioning pins are provided at a bottom of the support. The precise-positioning linear rolling bearing solves the problem that when the prior art is applied to the electromagnetic drive module, the manufacturing cost is increased.