Spindle Power-On Assembly for Converting Machine Tools to EDM
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Solution Overview
Problem
Traditional machining machine tools dominate the market, limiting the adoption and efficiency of electric discharge machining due to high costs and rarity of electric discharge machine tools, necessitating a cost-effective and efficient solution to upgrade machining capabilities.
Innovation Solution
A spindle power-on device for mechanical discharge compound machine tools, comprising a copper bush, gear plate, bevel gears, electric brush assemblies, chuck housing, supporting plate, and power device, allowing for fast power-on and power-off, easy installation, and automatic electric brush compensation, enabling electric discharge machining on existing machine tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional machining machine tools are used, then the machine tool can perform conventional machining operations, but the machining efficiency is low and production costs are high
Solution Approach 1:
The patent transforms a conventional machining machine tool into a multi-functional device that can perform both traditional machining and electric discharge machining operations. By adding the spindle power-on device with copper bush, electric brushes, and power supply system to the existing machine tool, the system gains the capability to perform EDM operations while retaining its original machining functions, thereby improving productivity without requiring complete replacement of the equipment
Solution Approach 2:
The patent introduces a copper bush as an intermediary component mounted on the spindle, which serves as the positive electrode for electric discharge machining. This copper bush works in conjunction with electric brushes that conduct electricity to it, creating the necessary conditions for EDM operations on a conventional machine tool, thus enabling high-efficiency machining without replacing the entire system
2Productivity
If electric discharge machine tools are used, then the machining efficiency is significantly increased, but the cost is high and the equipment is rare
Solution Approach 1:
The invention makes conventional machine tools versatile by enabling them to perform electric discharge machining in addition to their original functions. This approach increases equipment availability and accessibility, allowing more manufacturers to benefit from high-efficiency EDM operations without the need to purchase specialized and expensive electric discharge machine tools
Solution Approach 2:
The transformed machine tool serves itself by integrating the power-on device components (copper bush, electric brushes, insulation structure) directly into the existing spindle system. The machine tool's own spindle and control systems are utilized, requiring minimal external infrastructure and reducing the barrier to adopting high-efficiency machining methods
3Speed
If the spindle power-on device is mounted on the spindle, then fast power-on and power-off can be realized, but the insulation requirements increase
Solution Approach 1:
The patent uses an insulating structure as an intermediary element between the electrically conductive components (copper bush, electric brushes) and the machine tool body. This insulation system enables rapid power-on and power-off by isolating the electrical components, allowing the electric discharge function to be activated and deactivated quickly without electrical interference or safety hazards
Solution Approach 2:
The spindle power-on device is segmented into distinct functional components: the copper bush mounted on the spindle, electric brushes for electrical contact, insulating structures for isolation, and supporting plates for mechanical stability. This segmentation allows each component to be optimized independently and facilitates quick assembly and disassembly for fast power-on and power-off 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
Facilitates the conversion of traditional machine tools to electric discharge machining capabilities, reducing production costs and time, enhancing efficiency and promoting the adoption of electric discharge machining, thereby driving industrial upgrading.
Implementation Method 1
A spring is pressed between a rear end of each electric brush and the corresponding electric brush box
Implementation Method 2
The bottom of the chuck housing is supported by the supporting plate. The supporting plate is made of insulating material to insulate the power-on device from the machine tool
Implementation Method 3
The gear plate and the bevel gears are mounted inside the chuck housing in a meshed manner
Data Source
AI summary
A spindle power-on device for a mechanical discharge compound machine tool mounted on a spindle, includes a copper bush, a gear plate, bevel gears, electric bush assemblies, a chuck housing, a supporting plate, a mounting plate and a power device.