Powder Press Tooling Coupling for Automated Core Rod Handling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing tooling assemblies for powder compacting press machines face challenges in automation due to limited access and a hostile environment, particularly with the core rod, which is difficult to insert and remove within the machine and is prone to damage from metal powder debris.
Innovation Solution
A tooling assembly with a coupling mechanism featuring a male elastic coupling element on the core rod and a female coupling element on the lower punch drawbar, allowing for automatic connection and disconnection without additional activating mechanisms, ensuring reliable and easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional tool set with core rod is used for powder compaction, then the production sufficiency is improved, but the automation is limited due to difficult access and hostile environment
Solution Approach 1:
The core rod is merged with the lower punch to form a unified tool assembly. The core rod is inserted through the lower punch and secured by a retention ring, creating a single integrated unit that is easier to handle and automate. This combination allows the entire assembly to be inserted and removed as one piece, improving automation capability while maintaining production efficiency.
2Reliability
If a locking device with radial locking pin is used to connect lower punch, die and core pin, then the connection reliability is improved, but the device complexity increases due to additional activating mechanism
Solution Approach 1:
The complex locking device with radial locking pin and activating mechanism is extracted and replaced by a simpler retention ring system. The retention ring is retained by equatorial protrusions on the lower punch, providing reliable connection without requiring additional activating mechanisms. This extraction of the problematic locking mechanism reduces device complexity while maintaining connection reliability.
3Reliability
If magnetic coupling with permanent magnets is used to couple lower punch and core rod, then the coupling reliability is improved, but the device complexity increases and sensitivity to debris occurs
Solution Approach 1:
The expensive and complex permanent magnet coupling system is replaced by a simpler mechanical retention ring system. The retention ring provides sufficient coupling reliability through mechanical retention by equatorial protrusions, without the complexity of magnetic components. This substitution uses a simpler, more robust mechanical solution that is less sensitive to metal powder debris.
4Adaptability or versatility
If core rod is separately handled during insertion and removal, then the flexibility is improved, but the loss of time increases due to separate operations
Solution Approach 1:
The core rod is permanently merged with the lower punch by inserting it through the lower punch and securing it with a retention ring. This unified assembly allows the core rod to be inserted and removed together with the lower punch as a single unit, eliminating separate handling operations and reducing production time while maintaining the necessary flexibility for different compaction operations.
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
Enables automated insertion and removal of the core rod with the lower punch as a unified assembly, improving production efficiency and withstanding the harsh environment of metal powder, reducing tool damage and production time.
Implementation Method 1
The male coupling element is an elastic element
Data Source
Figure 1~2
Figure 3~4
Figure 5~8
AI summary
A tooling assembly for a powder compacting press machine including a lower punch chuck and a core rod chuck comprising: a lower punch having a lower punch drawbar for holding the lower punch in the lower punch chuck in the machine and a core rod having a core rod drawbar for holding the core rod in the core rod chuck, characterized in that, a coupling mechanism is provided to enable an operative connection of the lower punch and the core rod, the coupling mechanism comprises a male coupling element arranged on the outer surface of the core rod and a female coupling element arranged on the inner surface of the lower punch drawbar, wherein the male coupling element is an elastic element.