Wire EDM Workpiece Adjuster Above Fluid Level
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Solution Overview
Problem
Existing wire electrical discharge machines face challenges in reducing the size of the work tank due to the need for a waterproof structure for the Z-axis mover, which increases the device's size and costs, and reduces durability due to immersion in dielectric working fluid.
Innovation Solution
A wire electrical discharge machine design where the Z-axis mover is positioned below the work tank, with a pillar extending above the fluid level to support an adjuster that adjusts the workpiece's position and posture without being immersed in the dielectric working fluid, eliminating the need for a waterproof structure and allowing for a more compact setup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the adjuster is immersed in the dielectric working fluid, then the workpiece can be adjusted in position and posture, but the adjuster requires a waterproof structure which increases cost and reduces durability
Solution Approach 1:
The adjuster is extracted from the dielectric working fluid environment by extending the pillar above the fluid level. This separates the adjustment mechanism from the fluid immersion zone, eliminating the need for waterproof structures while maintaining adjustment functionality. The suspender then serves as the connection element that bridges the adjuster (above fluid) and workpiece (in fluid).
2Device complexity
If the Z-axis mover is disposed outside the work tank, then a waterproof structure is not required, but the overall device size increases
Solution Approach 1:
The solution transitions from a horizontal separation approach (Z-axis mover outside tank) to a vertical separation approach (adjuster above fluid level via extended pillar). This dimensional change allows the adjuster to be positioned in the vertical dimension above the fluid while maintaining a compact horizontal footprint, thus reducing overall device size while eliminating waterproof requirements.
3Strength
If the adjuster is made of rustproof material, then corrosion resistance is improved, but surface oxidation and electrolytic corrosion cannot be avoided reducing durability
Solution Approach 1:
The adjuster is extracted from the corrosive dielectric working fluid environment by positioning it above the fluid level through the extended pillar. This physical separation eliminates exposure to surface oxidation, electrolytic corrosion, and rust, making material selection less critical and significantly improving durability without relying solely on material properties.
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
This design prevents the need for a waterproof structure on the adjuster, reduces the overall device size, and maintains durability by keeping the adjuster out of the dielectric working fluid, while allowing for precise positioning and posture adjustments of the workpiece.
Implementation Method 1
generating an electrical discharge in a dielectric working fluid between wire electrodes stretched in parallel and the workpiece
Data Source
AI summary
A wire electrical discharge machine to cut a workpiece by generating an electrical discharge in a dielectric working fluid between wire electrodes arranged in parallel and the workpiece includes: a work tank that stores the dielectric working fluid; a Z-axis stage that is disposed in a lower portion of the work tank and moves the workpiece in a Z-axis direction that is a vertical direction; a pillar that extends upward from the Z-axis stage and has an upper end portion located above the highest level of a fluid level of the dielectric working fluid in the work tank; an adjuster that is installed downward from a portion of the pillar located above the highest level of the fluid level, is disposed above the highest level of the fluid level, and adjusts the position or posture of the workpiece in a direction other than the vertical direction.