Rotary Machine Terminal Compression Processing for Burr Elimination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In rotary electric machines, the connection of feeding terminals to rising portions requires checking both sides to avoid burrs, which is time-consuming and inefficient.
Innovation Solution
A terminal device with conductive members and connection terminals featuring flat plate-shaped connecting portions, where one surface is selectively brought into full contact with the other, and compression processing is applied to both surfaces to ensure proper alignment and connection without burrs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If press-working is used to manufacture terminals and feeding terminals, then manufacturing efficiency is improved, but burrs are formed at processed portions requiring time-consuming inspection
Solution Approach 1:
The patent applies preliminary action by performing compression processing on the connecting portions before assembly to eliminate burrs in advance. The compression processing is done on at least one of the first connecting portion or second connecting portion to remove burrs before the components are joined, thereby eliminating the need for time-consuming inspection after manufacturing.
Solution Approach 2:
The patent converts the harmful effect of burrs into a beneficial process feature. Instead of treating burr removal as a separate post-processing step, the compression processing that joins the connecting portions simultaneously removes burrs. The harmful burrs are converted into an opportunity to integrate joining and surface finishing operations.
2Manufacturing precision
If compression processing is applied to connecting portions, then burrs are eliminated and full contact is achieved, but additional processing steps are required
Solution Approach 1:
The patent merges the joining operation with the burr removal operation into a single compression processing step. The compression processing simultaneously achieves full contact between connecting portions and eliminates burrs, combining what would traditionally be separate operations into one integrated process.
Solution Approach 2:
The patent applies parameter changes by controlling the compression force and compression area during processing. By adjusting these parameters, the compression selectively removes burrs while maintaining the structural integrity of the connecting portions, achieving high connection surface quality without excessive processing complexity.
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 allows for efficient connection of terminals to conductive members without needing to check the front and back sides, improving manufacturing efficiency and reducing the risk of burrs.
Implementation Method 1
performing compression processing for a front surface and a back surface of the processed connecting portion at both ends of the processed connecting portion in a width direction of the processed connecting portion
Data Source
AI summary
Provided is a terminal device for a rotary electric machine, in which a plurality of conductive members, each having a first connecting portion having a flat plate shape, are provided to a base made of an insulating material. Each of a plurality of connection terminals has a second connecting portion having a flat plate shape. The second connecting portion is connected to a corresponding one of the first connecting portions. After a processed connecting portion being at least any one of the first connecting portion and the second connecting portion is formed through press-working performed for a conductive flat plate, compression processing is performed for a front surface and a back surface at both ends of the processed connecting portion in a width direction of the processed connecting portion.