Spring-Biased Rivet Pin Assembly for Versatile Bracket Fastening
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Solution Overview
Problem
The formation of rivet openings in brackets and the riveting process for fastener hardware is labor-intensive and difficult to expedite, especially when handling different types of fastener hardware and configured brackets, requiring frequent equipment modifications.
Innovation Solution
A rivet apparatus with an upper and lower riveting portion, featuring pin assemblies with biasing members and a notch, that deforms rivet tails to secure fastener hardware to brackets, allowing for efficient riveting without motorized components and easy adaptation to various geometries and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional riveting equipment is used to join fastener hardware to brackets, then the riveting function is achieved, but the process becomes labor-intensive and difficult to expedite
Solution Approach 1:
The riveting apparatus is divided into distinct modular components: a lower riveting portion with pin assemblies and biasing members, and an upper riveting portion. This segmentation allows each component to perform its specific function independently, enabling faster operation without increasing overall complexity. The modular design lets the system achieve high productivity through coordinated simple actions of individual segments.
2Adaptability or versatility
If equipment is modified to handle different types of fastener hardware and configured brackets, then versatility is improved, but equipment complexity and modification requirements increase
Solution Approach 1:
The pin assemblies with biasing members serve multiple functions: they deform rivet tails, apply controlled force, and accommodate different rivet configurations. The lower riveting portion with its notch can hold various fastener hardware types. This universal design allows the same apparatus structure to handle different fastener hardware and bracket configurations without requiring modifications, achieving versatility through functional multi-purpose components rather than specialized parts for each application.
3Loss of time
If manual riveting processes are used, then equipment simplicity is maintained, but labor intensity and time consumption increase
Solution Approach 1:
The biasing members automatically apply the necessary force to deform rivet tails without requiring external actuators or complex control systems. The apparatus uses the inherent elastic potential energy stored in the biasing members to perform the riveting action, making the system self-sufficient. This self-service mechanism eliminates the need for motorized components or automated control while significantly reducing assembly time compared to manual processes, achieving time efficiency through passive mechanical energy storage and release.
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
Simplifies the riveting process, reduces manufacturing and operating costs, and enables quick modification for different fastener hardware and brackets, improving assembly efficiency and reducing complexity.
Implementation Method 1
The first biasing member, disposed below the center pin, biases the center pin through the forming pin and away from the support member
Data Source
AI summary
A method and rivet apparatus to rivet a workpiece comprises an upper riveting portion and a lower riveting portion. The lower riveting portion comprising a fixed base, support member, and a pin assembly. The pin assembly comprises a center pin, a forming pin, a first biasing member, an outer shroud, and a second biasing member. The center pin pushes against a tail of a rivet to deform the tail of the rivet. The forming pin, fixedly coupled to the support member, pushes against the tail of the rivet to deform the tail of the rivet. The first biasing member, disposed below the center pin, biases the center pin through the forming pin and away from the support member. The outer shroud encircles the forming pin and the center pin. The second biasing member, disposed below the outer shroud, biases the outer shroud away from the support member.