Spot Welding Electrode Storage with Protected Lever Spring
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Solution Overview
Problem
Conventional spot welding electrode housing apparatuses malfunction due to exposure of coil springs, leading to ejection failures and poor design aesthetics, as external equipment can accidentally contact the biasing mechanism, causing the ejection regulating member to malfunction.
Innovation Solution
The ejection regulating member is designed as a lever that swings, with the biasing mechanism positioned internally, and a pin insertion hole regulates its movement, while projecting plate portions and a bracket with guide surfaces enhance protection and attachment precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the coil spring is exposed on the outer surface of the housing case, then the ejection regulating member can be actuated, but the apparatus is vulnerable to accidental contact by external equipment and has poor appearance
Solution Approach 1:
The coil spring is nested within the housing case rather than being exposed on the outer surface. The biasing mechanism is integrated into the internal structure of the ejection regulating member, allowing the spring to remain concealed while still providing the necessary biasing force for operation.
Solution Approach 2:
The housing case acts as a protective shell that encloses the coil spring and biasing mechanism. This shell structure protects the internal components from accidental contact by external equipment while maintaining the functional integrity of the ejection regulating member.
2Ease of operation
If the coil spring is exposed on the outer surface of the housing case, then the ejection regulating member can be actuated, but the apparatus has poor appearance
Solution Approach 1:
The coil spring is nested within the housing case rather than being exposed on the outer surface. The biasing mechanism is integrated into the internal structure of the ejection regulating member, allowing the spring to remain concealed while still providing the necessary biasing force for operation.
3Device complexity
If the ejection regulating member is designed as a swinging lever, then the mechanism is simplified, but the coil spring becomes vulnerable to external contact
Solution Approach 1:
The coil spring is nested within the housing case rather than being exposed on the outer surface. The biasing mechanism is integrated into the internal structure of the ejection regulating member, allowing the spring to remain concealed while still providing the necessary biasing force for operation.
Solution Approach 2:
The housing case acts as a protective shell that encloses the coil spring and biasing mechanism. This shell structure protects the internal components from accidental contact by external equipment while maintaining the functional integrity of the ejection regulating member.
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 configuration prevents ejection failures by ensuring the coil spring is not directly contacted by external tools, improves the apparatus's appearance, reduces operator load during electrode housing, and ensures accurate attachment to the bracket.
Implementation Method 1
a biasing mechanism including a coil spring as a movable part
Implementation Method 2
a pressing unit that presses one or a plurality of parallel electrodes housed in the housing path against one end of the housing path by a spring force
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A pressing unit (5) presses a plurality of electrodes (10) housed in a housing path (R1) in a housing case (2) toward an electrode outlet port (20). When a lever member (3) swings to one side, a distal end of the lever member (3) comes to be in a first position (X1) in which the lever member (3) covers a part of the electrode outlet port (20). When the lever member (3) swings to the other side, the lever member (3) comes to be in a second position (X2) in which the distal end exposes the electrode outlet port (20). A first coil spring (4) is disposed between a proximal end of the lever member (3) and a first side surface portion (21) of the housing case (2), and biases the proximal end of the lever member (3) to a direction away from the housing case (2).