Clamping Fixture for Plug Electrode Using Inclined Guide
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Solution Overview
Problem
Conventional clamping fixtures for plug electrodes in injection molding processes often cause displacement and scratching issues, leading to unstable product dimensions and quality due to friction during the molding process.
Innovation Solution
A clamping fixture design featuring an upper mold, a lower mold, and at least one clamping guide block with an inclined surface, which allows the guide block to move and clamp the plug electrode without initial contact, reducing friction and displacement during insertion and molding, and includes features like rollers and bumps to enhance stability and minimize scratching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the clamping fixture tightly fits the plug electrode to prevent displacement, then the dimensional stability is improved, but the plug electrode is easily scratched due to friction during insertion and removal
Solution Approach 1:
The patent introduces an inclined surface (curved/angled geometry) on the clamping guide block instead of a flat vertical surface. This inclined surface guides the plug electrode at an angle during insertion, reducing direct friction and scratching while maintaining secure clamping. The curved/angled transition allows smooth engagement without abrupt contact that causes scratching.
Solution Approach 2:
The patent changes the geometric parameters of the clamping interface by introducing an inclined angle rather than a perpendicular fit. This parameter change allows the plug electrode to be guided and clamped effectively while reducing the friction coefficient during insertion and removal, thereby preventing scratching while maintaining dimensional stability.
2Stability of the object's composition
If the clamping fixture uses a fixed rigid structure to prevent displacement, then the stability is improved, but the plug electrode cannot be easily inserted or removed without scratching
Solution Approach 1:
The inclined surface on the clamping guide block provides a curved/angled path for insertion and removal. This allows the plug electrode to be easily guided into position and removed without scratching, while the overall rigid structure of the mold maintains clamping stability during the injection molding process.
Solution Approach 2:
The clamping guide block is designed with an inclined surface that allows dynamic movement during insertion and removal phases, making operation easier. During the actual molding process, the structure provides static rigid support for stable clamping. This dynamic adaptability resolves the contradiction between ease of operation and clamping stability.
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 design effectively prevents plug electrode displacement by injection pressure and reduces scratching, thereby enhancing the dimensional stability and quality of the molded products.
Implementation Method 1
The lower mold has an inclined surface. When the upper mold is combined with the lower mold, the upper mold pushes the clamping guide block to move toward the lower mold, and the clamping guide block is guided by the inclined surface to move for clamping the at least one plug electrode.
Data Source
AI summary
A clamping fixture for plug electrode, including an upper mold, a lower mold and at least one clamping guide block is provided. The lower mold and the upper mold can be separated from and combined with each other. The upper mold has at least one opening through which at least one plug electrode is inserted. The at least one clamping guide block is disposed between the upper mold and the lower mold for clamping and releasing the at least one plug electrode. The lower mold has an inclined surface. When the upper mold is combined with the lower mold, the upper mold pushes the clamping guide block to move toward the lower mold, and the clamping guide block is guided by the inclined surface to move for clamping the at least one plug electrode.