Band Button Assembly Jig for Small Spring and Pin Positioning
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Solution Overview
Problem
Conventional manual assembly of band buttons for watch straps becomes increasingly difficult and costly due to their small size, leading to lower yield and production capacity.
Innovation Solution
An assembly jig comprising a base, upper cover, pressing component, and pressing mechanism that accommodates and assembles the button body, compression spring, torsion spring, and positioning pins, allowing for automated assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual assembly is used for band buttons, then flexibility and simplicity are maintained, but assembly difficulty increases and productivity decreases due to small component size
Solution Approach 1:
The assembly jig is divided into multiple functional modules including a base with accommodating groove for positioning, an upper cover with slot for torsion spring, a pressing mechanism for compression spring, and a first pressing component for torsion spring. This segmentation allows each module to perform its specific function efficiently, resolving the contradiction by making the complex assembly process manageable through modular design
Solution Approach 2:
The assembly jig acts as an intermediary device between the operator and the small components. It provides specialized structures like accommodating grooves, slots, and pressing mechanisms that facilitate the handling and assembly of tiny band button components, thereby improving assembly speed while reducing operational difficulty
2Productivity
If manual assembly is used for band buttons, then equipment cost is low, but labor costs increase and yield decreases
Solution Approach 1:
The assembly jig is designed to perform assembly operations automatically once components are positioned. The pressing mechanisms and positioning structures enable the jig to complete the assembly process with minimal human intervention, thereby increasing production capacity and reducing labor costs per unit produced
Solution Approach 2:
The base and upper cover are designed with pre-formed accommodating grooves and slots that automatically position components like the compression spring, torsion spring, and positioning pins during assembly. This preliminary preparation of positioning structures enables faster assembly and higher yield without requiring complex manual alignment operations
3Productivity
If automated assembly is implemented, then productivity increases, but device complexity increases
Solution Approach 1:
The assembly jig is designed as a multi-functional device where the base accommodates multiple components (button body, compression spring, positioning pins), the upper cover handles the torsion spring, and pressing mechanisms perform multiple pressing operations. This multi-functionality increases assembly efficiency while avoiding the need for multiple separate devices, thereby controlling overall complexity
Data Source
AI summary
An assembly jig is suitable for assembling a band button. The band button includes a button body, a compression spring, a torsion spring, a compression spring pin and a torsion spring pin. The assembly jig includes a base, an upper cover, a first pressing component and a pressing mechanism. The base has an accommodating groove, and the accommodating groove is configured for accommodating the button body, the compression spring, the torsion-spring positioning pin and the compression-spring positioning pin. The upper cover is combined with the base and has a slot for accommodating the torsion spring. The first pressing component is configured to press the torsion spring into the button body which is accommodated in the accommodating groove. The pressing mechanism is configured for pressing the compression spring, the compression spring pin and the torsion spring pin into the button body which is accommodated in the accommodating groove.