Curved Workpiece Support Using Tangential Loading to Prevent Floating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing workpiece supporting devices face challenges in maintaining close contact between curved skin and jigs during plate thickness processing, leading to potential floating issues and increased complexity due to the need for uniform load application and friction management.
Innovation Solution
A workpiece supporting device with a jig featuring contact members that apply a tangential load to the workpiece, ensuring close contact and uniform pressure distribution, thereby preventing floating and reducing friction, allowing for efficient processing while maintaining the workpiece's curved shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a load is applied to the skin in the plate thickness direction to eliminate floating, then close contact between the skin and jig is improved, but friction is generated that hinders sliding movement and deformation of the skin
Solution Approach 1:
The patent changes the direction of load application from the plate thickness direction (vertical) to the tangential direction (horizontal/longitudinal) along the supporting surface. This dimensional change in force application eliminates friction generation while still achieving close contact through the geometric constraint of the curved supporting surface.
Solution Approach 2:
The patent replaces the mechanical pressing system (applying vertical load) with a geometric constraint system where the curved supporting surface naturally guides the workpiece into close contact through tangential force application, eliminating the need for friction-based pressing mechanisms.
2Reliability
If weights are used to apply load to the skin in the plate thickness direction, then close contact is achieved, but the device becomes complicated and requires many weights
Solution Approach 1:
The patent extracts and eliminates the weights component from the system by replacing the vertical loading mechanism with a tangential force application system that utilizes the geometric shape of the supporting surface to achieve close contact without additional weighting components.
Solution Approach 2:
The curved supporting surface serves dual functions: it provides the geometric constraint for close contact and simultaneously guides the tangential force application. The system uses its own geometry to achieve the pressing function without external weights, making the device self-sufficient.
3Ease of manufacture
If the skin is processed to have a curvature smaller than the desired curvature, then the skin can be placed on the jig, but the central portion floats and requires additional pressing steps
Solution Approach 1:
The patent applies tangential force to the workpiece before final positioning, causing preliminary deformation that guides the workpiece into the correct curved shape. This preliminary action ensures the workpiece conforms to the desired curvature before being placed on the jig, eliminating floating issues.
Solution Approach 2:
The patent changes the curvature parameter of the workpiece through controlled deformation by tangential force application. By adjusting the magnitude and direction of the tangential force, the workpiece curvature is modified to match the desired curvature of the supporting surface, ensuring complete contact.
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 device effectively supports the workpiece by ensuring close contact between the jig and the workpiece, reducing processing complexity and maintaining the workpiece's shape during plate thickness processing, while minimizing friction and energy loss.
Implementation Method 1
a load in a tangential direction of the supporting surface is input to the workpiece placed on the supporting surface
Implementation Method 2
when the load is applied to the skin in the plate thickness direction, friction is generated between the skin and the jig
Data Source
AI summary
The purpose of the present invention is to facilitate bonding between a jig and a plate-shaped workpiece and to suitably support the workpiece. A support device is provided with: a jig that has a bent support surface for supporting a plate-shaped workpiece; a first abutment that abuts against one end of the workpiece mounted on the support surface; and a second abutment that is disposed so as to face the first abutment across the support surface and that abuts against the other end of the workpiece mounted on the support surface. The first and second abutments move toward each other and apply a load, in the tangential direction load of the support surface, with respect to the workpiece mounted on the support surface.