One-Piece Circulation Seat for Linear Guideway Assembly Accuracy
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Solution Overview
Problem
Conventional linear guideways face issues with alignment accuracy requirements, assembling tolerances, and stress concentration due to rotation in the middle retainer.
Innovation Solution
A linear guideway design featuring a slider with two lateral wing portions and two circulation seats, each with a middle retaining portion having a two-stepped structure, allowing for an integrally formed one-piece structure that avoids the problems associated with the middle retainer, including alignment accuracy and stress concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a middle retainer with assembling structures is used in conventional linear guideways, then the structure can be assembled, but alignment accuracy requirements increase and assembling tolerances become more difficult to control
Solution Approach 1:
The circulation seat is designed as an inherently one-piece structure that integrates the middle retainer and end retainers into a single unified component. This merging eliminates the need for separate assembling structures on multiple retainers, thereby reducing alignment accuracy requirements and controlling assembling tolerances while maintaining the capability to assemble the linear guideway system.
2Ease of manufacture
If assembling structures are formed on two ends of the middle retainer, then the retainer can be assembled, but stress concentration from rotation occurs
Solution Approach 1:
By merging the middle retainer and end retainers into a single one-piece circulation seat structure, the design eliminates the need for separate assembling structures on the middle retainer ends. This unified structure distributes rotational stresses more evenly throughout the component, preventing stress concentration at assembly interfaces while maintaining the necessary assembling capability of the linear guideway system.
3Ease of operation
If multiple separate retainers are used, then assembly is possible, but the structure becomes more complex with multiple parts
Solution Approach 1:
The circulation seat integrates the middle retainer and end retainers into a single one-piece structure, reducing the number of separate parts from multiple retainers to one unified component. This merging simplifies the overall structure while maintaining the capability to assemble the linear guideway, as the single circulation seat can still perform the functions of multiple separate retainers.
Data Source
AI summary
A linear guideway, a sliding module thereof, and a circulation seat thereof are provided. The circulation seat has an inherently one-piece structure, which includes two turning portions, a middle retaining portion, and two lateral retaining portions. The middle retaining portion has a two-stepped structure, which includes a connection bar and a limiting bar that is connected to the connection bar. The connection bar is connected to and arranged between the two turning portions, and a distance between two long lateral surfaces of the connection bar gradually increases along a direction away from the limiting bar. The two lateral retaining portions are connected to and arranged between the two turning portions, and the two lateral retaining portions are respectively located at two opposite sides of the middle retaining portion.