Elastic Holding Jig with Intermediate Plate for Conductive Paste
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Solution Overview
Problem
Existing methods for applying conductive paste to electronic parts result in uneven protrusion distances, leading to inconsistent paste thickness and decreased productivity due to elastic deformation of holding jigs, and require additional complicated steps to align protrusion distances.
Innovation Solution
A method using a tabular holding jig with elastic material holding holes, where a flat intermediate plate or a base plate with a stepped portion is employed to prevent deflection, ensuring consistent protrusion distances and precise application of conductive paste by positioning the intermediate plate or stepped portion between the holding jig and base plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If press pins simultaneously push electronic parts into holding holes of elastic material, then insertion efficiency is improved, but elastic deformation causes unequal protrusion distances
Solution Approach 1:
A guide plate is introduced as an intermediary component between the press pins and the holding jig. The guide plate has through-holes that accommodate the electronic parts and guide their insertion, while the holding jig has holding holes that receive the parts. This intermediary structure allows simultaneous pressing while maintaining proper alignment and preventing the elastic material from deforming unevenly, thus achieving both high productivity and uniform protrusion distances.
2Productivity
If guide plate is aligned with holding jig to enable simultaneous insertion, then productivity is improved, but elastic deformation of holding jig causes curvature and unequal protrusion distances
Solution Approach 1:
The guide plate serves as a mediator that enables simultaneous insertion while preventing the holding jig from deforming. By guiding the electronic parts through its through-holes and allowing them to be pressed into the holding holes of the elastic material, it maintains proper alignment and prevents the elastic material from curving upward, thus ensuring uniform protrusion distances across all parts.
Solution Approach 2:
The design changes the physical parameters of the holding jig by using an elastic material with specific properties that allow it to flexibly receive parts while maintaining structural integrity. The elasticity of the material enables it to deform slightly during insertion and then recover, maintaining consistent holding force and uniform protrusion distances even when multiple parts are inserted simultaneously.
3Ease of operation
If holding jig uses elastic material for holding holes, then ease of operation is improved, but elastic deformation under pressure causes manufacturing precision deterioration
Solution Approach 1:
The guide plate acts as an intermediary that distributes the pressing force evenly across multiple electronic parts simultaneously. By guiding the parts through its through-holes and allowing them to be pressed into the holding holes of the elastic material, it prevents the elastic material from deforming unevenly under concentrated pressure, thus maintaining both ease of operation and manufacturing precision.
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 solution ensures consistent conductive paste application in predetermined thicknesses and positions without sacrificing productivity, reducing variance in protrusion distances and eliminating the need for additional alignment steps.
Implementation Method 1
this method causes elastic deformation of the elastic material (rubber) 57 of the holding jig 51 due to pushing pressure when the plurality of press pins P push the electronic parts 55 into the holding holes 52 of the holding jig 51
Data Source
AI summary
A tabular holding jig has a plurality of holding holes whose side walls are made from an elastic material. When electronic parts are inserted into the holding holes of the holding jig, deflection of the holding jig is prevented by (a) disposing an intermediate plate between the holding jig and a base plate, or (b) using a base plate having a stepped portion with a raised surface that covers an area of the holding jig where the plurality of holding holes is formed.