Hydraulic Punch Chamber Layout for Compact Small-Part Forming
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Solution Overview
Problem
Existing workpiece processing apparatuses using hydraulic pressure are complex and unsuitable for processing small objects, such as connectors in electronic devices, due to their large size and intricate power devices.
Innovation Solution
A workpiece processing apparatus with a simplified mechanism where the workpiece processing chamber and hydraulic-pressure generation chamber extend in parallel, allowing for hydraulic pressure to be increased by a descending piston, suitable for small objects, and featuring a slider that moves downward to process workpieces with high hydraulic pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a complex power device and hydraulic-pressure generation mechanism are used, then large objects can be processed, but the apparatus size becomes large and is unsuitable for small objects
Solution Approach 1:
The workpiece processing chamber and hydraulic-pressure generation chamber are merged into a single integrated chamber structure, eliminating the need for separate power devices and complex hydraulic systems. This integration directly reduces apparatus size and simplifies the mechanism while maintaining the capability to generate high hydraulic pressure for processing small objects
Solution Approach 2:
The integrated chamber serves dual functions: it acts as both the workpiece processing chamber and the hydraulic-pressure generation chamber. This multi-functionality eliminates the need for separate dedicated hydraulic power units, thereby reducing overall apparatus size and complexity while maintaining processing capability
2Device complexity
If chambers extend in parallel configuration, then mechanism is simplified and size is reduced, but hydraulic pressure generation capability must be maintained
Solution Approach 1:
The piston is configured to move vertically within the integrated chamber, dynamically generating hydraulic pressure as needed during the workpiece processing cycle. This dynamic pressure generation within the parallel chamber structure maintains sufficient hydraulic pressure capability while preserving mechanism simplicity and compact size
Solution Approach 2:
The hydraulic pressure generation is achieved through vertical piston movement in the upper-lower direction, utilizing the vertical dimension within the parallel chamber arrangement. This dimensional approach allows high pressure generation without requiring complex horizontal hydraulic mechanisms, thus simplifying the overall structure
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 apparatus effectively processes small objects like connector shells by generating high hydraulic pressure with a simple mechanism, reducing size and preventing wrinkles, while being adaptable for progressive or single-shot processing.
Implementation Method 1
the hydraulic pressure is increased to a necessary high value by the descending piston
Data Source
Figure 1~2
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Figure 5~6
AI summary
A workpiece processing apparatus comprises a base member (20), a slider (61) located above the base member (20) and a punch (64) projecting downward from the slider (61). The base member (20) is formed with a hydraulic chamber (50) fillable with liquid (50L). The hydraulic chamber (50) has a workpiece processing chamber (51) and a hydraulic-pressure generation chamber (53) which are coupled together. Each of the workpiece processing chamber (51) and the hydraulic-pressure generation chamber (53) extends in the upper-lower direction and opens upward. The base member (20) comprises a piston (42) which is partially received in the hydraulic-pressure generation chamber (53). When the slider (61) is moved downward, the punch (64) is moved downward and presses the workpiece into the workpiece processing chamber (51), and the piston (42) receives a downward force and is moved downward. The thus-moved piston (42) increases hydraulic pressure of the liquid (50L). The hydraulic chamber (50) is provided with a relief valve (59) which controls the hydraulic pressure so that the hydraulic pressure does not exceed a predetermined value.