Wire Electrical Discharge Machining Apparatus Batch Processing
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Solution Overview
Problem
Existing wire electrical discharge machining technologies face challenges in efficiently machining multiple workpieces in a batch process due to increased complexity and cost associated with individual control units for machining voltage and current, leading to inefficiencies and higher apparatus costs.
Innovation Solution
A wire electrical discharge machining apparatus that utilizes two electrical discharge machining currents flowing in opposite directions with respect to a single power supply terminal, allowing for simultaneous machining of multiple workpieces with a single machining power supply unit, reducing the number of control units and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If individual control units are used for each workpiece to apply machining voltages, then machining precision and control accuracy are improved, but device complexity and apparatus cost increase
Solution Approach 1:
The patent merges multiple individual control units into a single shared control unit that manages machining voltages for multiple workpieces. The power supply terminal is positioned to supply voltage to multiple workpieces simultaneously through the wire, eliminating the need for separate control units for each workpiece while maintaining machining precision through centralized control.
Solution Approach 2:
The single power supply terminal serves multiple functions by supplying machining voltages to multiple workpieces simultaneously. The wire acts as a universal conductor that distributes voltage to different workpieces at different positions, making the control system multi-functional rather than requiring dedicated control for each workpiece.
2Manufacturing precision
If individual control units are used for each workpiece, then machining current control accuracy is improved, but apparatus cost increases
Solution Approach 1:
Multiple individual control units are merged into a single control unit that manages current supply to multiple workpieces. The wire electrical discharge machining system uses a single power supply terminal that distributes voltage to multiple workpieces through the wire, reducing apparatus cost while maintaining current control accuracy through centralized management.
3Productivity
If multiple workpieces are machined in a batch process with individual control units, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple control functions into a single control unit that manages batch processing of multiple workpieces. The wire serves as a common conductor that distributes voltage to multiple workpieces simultaneously, enabling batch processing (improved productivity) without requiring multiple separate control units (reduced device complexity).
Solution Approach 2:
The single power supply terminal and wire system perform multiple functions by serving multiple workpieces in batch mode. The wire acts as a universal power distribution medium that can simultaneously supply voltage to different workpieces at different positions, enabling efficient batch processing with simplified control architecture.
4Device complexity
If machining voltage is supplied to multiple workpieces through a single power supply terminal, then device complexity is reduced, but current distribution uniformity may worsen
Solution Approach 1:
The wire electrical discharge machining system creates equipotential conditions along the wire by using it as a common conductor for voltage distribution. The wire maintains relatively uniform electrical potential across different contact points, ensuring that multiple workpieces receive comparable voltage levels despite the single power supply terminal configuration, thereby maintaining current distribution uniformity.
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 efficient batch processing of multiple workpieces with reduced apparatus complexity and cost, maintaining machining accuracy and efficiency comparable to individual processing methods.
Implementation Method 1
a wire electrical discharge machining apparatus that utilizes two electrical discharge machining currents flowing in opposite directions
Implementation Method 2
electrical discharge machining of a workpiece, including: multiple main rollers around which a wire winds in parallel; multiple workpiece feeding units configured to feed the workpiece toward the wire winding
Data Source
AI summary
A wire electrical discharge machining apparatus includes: multiple main rollers around which a wire winds in parallel; multiple workpiece feeding units for feeding the workpiece toward the wire; a machining power supply unit for supplying a machining voltage to the workpiece; and a power supply terminal for supplying the machining voltage to the wire. The multiple workpiece feeding units are respectively arranged at a first position for feeding the workpiece toward a wire portion having a wire plane of the wire and a second position for feeding another workpiece toward another wire portion having another wire plane of the wire. The power supply terminal is arranged at a third position between the first position and the second position. The machining voltage supplied from the single machining power supply unit is supplied to the workpieces to be electrically discharge machined by the multiple workpiece feeding units.