Electroformed Flexible Gear Replication for Precision Mass Production
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Solution Overview
Problem
Existing methods for manufacturing flexible gears are inefficient, leading to high production costs and low productivity, as they require multiple steps, high material wastage, and inferior material utilization.
Innovation Solution
A method involving the preparation of a matrix with a flexible gear shape, followed by electroforming to create the gear shape with predetermined thickness, and finally releasing the gear from the matrix, allowing for mass production with reduced costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional manufacturing methods are used for flexible gears, then production cost is reduced and productivity is improved, but manufacturing precision and structural strength deteriorate
Solution Approach 1:
A master model with precise gear tooth profiles is created beforehand through high-precision machining. This master model serves as a template for mass production, allowing multiple flexible gears to be manufactured with consistent precision without repeatedly performing complex machining operations, thereby improving productivity while maintaining manufacturing precision
Solution Approach 2:
The precise gear shape is copied from the master model to multiple flexible gear components. By using the master model as a reference for replication, the invention ensures that all produced gears maintain the same high level of precision as the original design, enabling mass production without sacrificing accuracy
2Loss of substance
If conventional manufacturing methods are used for flexible gears, then material utilization is improved, but production cost increases and productivity decreases
Solution Approach 1:
Instead of machining each gear individually from solid material, the invention uses a master model to copy the gear shape onto multiple flexible gear components simultaneously or in sequence. This replication approach dramatically reduces material wastage and enables mass production, improving both material utilization and productivity
Solution Approach 2:
The invention changes the material parameter from rigid metal requiring machining to flexible material suitable for replication processes. This parameter change allows the use of forming and copying methods instead of subtractive machining, reducing material loss and increasing production efficiency
3Device complexity
If conventional manufacturing methods are used for flexible gears, then manufacturing complexity is reduced, but production cost increases
Solution Approach 1:
The complex gear tooth profiling operation is performed once to create the master model, rather than repeatedly for each gear component. This preliminary action simplifies the ongoing manufacturing process, reducing complexity in mass production while lowering costs through efficiency gains
Solution Approach 2:
The invention replaces complex repetitive machining operations with a simpler copying process from the master model. This approach reduces manufacturing complexity by eliminating the need for complex tooling and multiple machining steps for each gear, thereby reducing production costs
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
This method significantly improves productivity and reduces production costs by enabling the production of multiple flexible gears in a single electroforming process, while maintaining high mechanical characteristics and structural strength comparable to steel.
Implementation Method 1
forming, by an electroforming method using the matrix, a flexible gear shape with predetermined thickness
Data Source
AI summary
A method of manufacturing a flexible gear and a method of manufacturing a flexible gear unit that can achieve a further improvement in productivity and a further reduction in production cost, and a gear that allows a further improvement in productivity and a further reduction in production cost are provided. A method of manufacturing a flexible gear is provided which includes preparing a matrix with a flexible gear shape, and forming, by an electroforming method using the matrix, a flexible gear shape with predetermined thickness and releasing the flexible gear shape from the matrix. A method of manufacturing a flexible gear unit is provided which includes the method of manufacturing the flexible gear according to the present technology, and joining a shaft and/or a hub to the flexible gear. Further, a gear is provided which includes a gear part, a body part, and a diaphragm part, is made from a material suitable for an electroforming method, and has flexibility.