Piston Casting Core Positioning Guide Die Mechanism
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Solution Overview
Problem
The conventional method for producing pistons with cooling channels for internal combustion engines requires manual operation to arrange a core in a die, leading to complex production processes and insufficient cost reduction.
Innovation Solution
An apparatus and method that includes a fixed die, a moveable die, and a guide die with a core retaining mechanism, allowing for automated positioning and retention of the core within the die, enhancing productivity and reducing manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual operation is used to arrange the core in the die, then the core can be positioned, but the production process becomes complicated and productivity is reduced
Solution Approach 1:
The guide die is designed with engaging portions that automatically guide and position the core in the die through mechanical engagement, eliminating the need for manual positioning operations while ensuring precise placement
Solution Approach 2:
The guide die acts as an intermediary tool between the core and the die, providing a mechanical interface with engaging portions that facilitate automatic core positioning without direct manual intervention
2Measurement precision
If manual operation is used to arrange the core in the die, then the core can be positioned, but the production process becomes complicated and cost reduction is insufficient
Solution Approach 1:
The guide die with engaging portions performs self-positioning of the core through its own structural features, eliminating complex manual positioning procedures and simplifying the overall production process
Solution Approach 2:
The guide die is prepared in advance with specific engaging portions designed to match the die cavity, enabling automatic and straightforward core positioning without complex procedural steps
3Productivity
If automated arrangement is implemented using guide die, then productivity is improved, but additional device components are required
Solution Approach 1:
The guide die serves multiple functions: it guides the core positioning, retains the core during the process, and engages with the die cavity, consolidating several operations into a single device component
Solution Approach 2:
The guide die combines the positioning and retention functions into a single integrated component, reducing the number of separate device elements needed while achieving automated core arrangement
Data Source
AI summary
An apparatus for producing a piston for an internal combustion engine by casting, the piston having a cooling channel therein, the apparatus including a fixed die with an upwardly opened cavity in which a core serving to form the cooling channel is to be disposed, a moveable die moveably disposed relative to the fixed die in a vertical direction and including a predetermined engaging portion, a guide die including an engaging portion engageable with the fixed die and having a same shape as that of the engaging portion of the moveable die, and a core retaining mechanism disposed in the guide die to retain the core in a predetermined position.