Casting Mold Core Stability via Spring-Loaded Baseboard
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Solution Overview
Problem
Conventional casting mold configurations face challenges in managing clearance between the baseboard part and the accommodation part, leading to positional displacement of the core due to buoyancy, requiring frequent adjustments and increased operator burden due to factors like hot deformation, manufacturing variations, and wear.
Innovation Solution
A casting mold design that includes an urging member, such as a pin member and spring, to press the baseboard part against the inner face of the accommodation part, combined with small clearance parts to prevent positional displacement, reducing operator burden and maintaining stability despite wear and manufacturing variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If clearance between baseboard part and accommodation part is managed to prevent core displacement, then core stability is improved, but operator burden increases due to frequent adjustments
Solution Approach 1:
The urging member automatically maintains the appropriate clearance between the baseboard part and accommodation part through its own elastic force, eliminating the need for operator intervention. The spring continuously applies force to keep the baseboard part in the correct position, allowing the system to self-regulate without manual adjustment.
Solution Approach 2:
The clearance management transitions from a static fixed clearance design to a dynamic system where the urging member continuously adjusts the position of the baseboard part. The spring force adapts to variations in posture and wear, maintaining optimal clearance dynamically throughout the operational cycle.
2Reliability
If urging member is added to press baseboard part against accommodation part, then core positional stability is improved, but device complexity increases
Solution Approach 1:
The urging member acts as an intermediary element between the baseboard part and accommodation part, providing the necessary contact force without requiring complex mechanical linkages. This simple intermediate component mediates the interaction, maintaining stability through elastic force rather than complex structural constraints.
3Reliability
If clearance is reduced to prevent displacement, then core stability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The system changes the parameter of clearance from a fixed dimensional value to a force-controlled parameter. Instead of relying on precisely manufactured clearance gaps, the urging member controls the effective clearance through applied force, allowing larger manufacturing tolerances while maintaining functional 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 effectively prevents core positional displacement due to molten metal buoyancy using friction forces, reduces operator maintenance burden, and ensures stable contact regardless of the baseboard and pin member postures, improving operational efficiency.
Implementation Method 1
an urging member which urges the baseboard part toward an inner face of the accommodation part
Implementation Method 2
The solution effectively prevents core positional displacement due to molten metal buoyancy using friction forces
Implementation Method 3
an urging member, such as a pin member and spring
Data Source
AI summary
A casting mold includes: an upper mold; a lower mold; a horizontal mold; and a core. The core includes a main body part, and a baseboard part that continues to the main body part. The lower mold includes an accommodation part that accommodates the baseboard part. The casting mold further includes an urging member that urges the baseboard part toward an inner face of the accommodation part.