Bearing Cage Segment Alignment for Precise Welded Joints
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Solution Overview
Problem
Existing bearing cage production methods face challenges in achieving precise alignment of sheet metal cage segments during welding, leading to potential offset connections and increased material loss.
Innovation Solution
Incorporating alignment elements on the joint edges of the bearing cage segments, specifically designed to be complementary and configured for precise radial, axial, and circumferential alignment, which are manufactured using laser cutting to ensure accurate alignment and prevent movement during welding, thereby facilitating a reliable and stable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional punching and stamping methods are used to produce bearing cage segments, then manufacturing simplicity is maintained, but alignment precision of joint edges during welding deteriorates
Solution Approach 1:
The alignment elements are integrated into the cage segment structure during the punching and stamping process, performing the alignment function in advance before welding. This preliminary action ensures that joint edges are pre-aligned with required precision without adding complex alignment devices or procedures during assembly.
Solution Approach 2:
The alignment elements are merged with the cage segment body as an integrated structure, produced together in the same punching and stamping process. This combining approach maintains manufacturing simplicity while achieving precise alignment, as the alignment features become inherent parts of the cage segments rather than separate components.
2Manufacturing precision
If alignment elements are added to joint edges, then alignment precision improves, but manufacturing complexity increases
Solution Approach 1:
The alignment elements are formed during the initial punching and stamping operations, performing alignment preparation in advance. This eliminates the need for separate alignment operations or complex assembly procedures, maintaining ease of manufacture while achieving precise alignment.
Solution Approach 2:
The alignment elements are combined with the cage segment structure and produced in the same manufacturing process. This integration means that while the structure is slightly more complex, the manufacturing process itself remains simple and efficient, as no additional manufacturing steps are required.
3Manufacturing precision
If joint edges are connected without alignment elements, then manufacturing process is simple, but connection precision deteriorates
Solution Approach 1:
The alignment elements perform the alignment function before the welding connection is made. This preliminary alignment action ensures that joint edges are precisely positioned relative to each other, achieving high connection precision without requiring complex positioning devices or procedures during the welding process.
Solution Approach 2:
The alignment elements are merged into the cage segment structure, producing an integrated component that achieves precise connections through its inherent geometry. This approach improves connection precision while minimizing structural complexity, as the alignment features are simple geometric elements incorporated into the existing cage design.
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 solution ensures precise alignment and connection of bearing cage segments, reducing material loss and enabling the use of longer rolling elements, increased load capacity, and improved stability with reduced material usage.
Implementation Method 1
which are manufactured using laser cutting to ensure accurate alignment and prevent movement during welding
Data Source
AI summary
A bearing cage segment of a sheet metal cage includes first and second sheet metal ring sections and bridges therebetween defining a plurality of pockets for receiving rolling elements. A first circumferential joint edge of the segment is configured to connect to a second circumferential joint edge of the segment or to a second joint edge of another segment, and the first joint edge includes at least one alignment element, such as a projection or contour, that is configured to align the first joint edge radially, axially and/or circumferentially against the second joint edge which may include a complementary alignment element such as a recess or complementary contour.