Interference-Fit Pin Fixturing for Rotatable Surface Treatment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current techniques for surface treatment of large parts require labor-intensive processes involving multiple fixtures, masking, and re-mounting, which are time-consuming and inefficient.
Innovation Solution
The use of adjustable diameter pins inserted into holes within the part to secure it without masking the surface, allowing for surface treatment without re-mounting and facilitating rotation of the part for easier access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional fixtures are used to secure large parts, then the part is held in place, but the fixtures mask off portions of the part from view, preventing complete surface treatment
Solution Approach 1:
The fixture is divided into multiple discrete pins that are inserted into holes distributed across the part. This segmentation allows the part to be secured at multiple points without requiring large masking fixtures, enabling surface treatment of exposed areas while maintaining secure holding.
Solution Approach 2:
The pins are inserted into pre-drilled holes within the part, creating a nested configuration where the fixing mechanism is contained within the part structure itself rather than requiring external masking fixtures that would block access to surfaces.
2Manufacturing precision
If multiple fixtures are used to treat different portions of a part, then complete surface coverage is achieved, but the process becomes highly labor-intensive and time-consuming
Solution Approach 1:
A single fixture with multiple pins serves multiple functions simultaneously: it secures the part in place and allows complete surface treatment without requiring multiple separate fixtures or re-mounting operations. The fixture handles both positioning and full-surface accessibility.
Solution Approach 2:
The part remains continuously secured to the same fixture throughout the entire surface treatment process, eliminating the need to move between fixtures or re-mount the part. This continuous securing enables uninterrupted surface treatment of all areas.
3Reliability
If pins with fixed diameter are used, then the part is secured, but the fixture cannot adapt to different part sizes or hole configurations
Solution Approach 1:
The pins incorporate adjustable diameter capability, allowing them to dynamically adapt to different hole sizes and part configurations. This dynamic adjustment mechanism maintains secure fixing across varying part geometries while preserving adaptability to different fixtures and part types.
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 enables efficient surface treatment of large parts by avoiding the need for masking and re-mounting, reducing labor and time required, while allowing for easy rotation of the part for improved access.
Implementation Method 1
forming an interference fit between a pin and a wall defining a hole, supporting a weight of the part with the interference fit
Data Source
AI summary
Systems and methods are provided for securement of parts. One embodiment is a method for securing a part during fabrication. The method includes forming an interference fit between a pin and a wall defining a hole, supporting a weight of the part with the interference fit, and rotating the part around an axis of the part while the weight of the part is supported.