Exchangeable Machining Unit With Spindle-Powered Energy Generation
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Solution Overview
Problem
Existing machining units for machining centers are limited in flexibility due to the need for electrical interfaces and cable connections, making it difficult to use them on different machining centers without additional adaptations.
Innovation Solution
An interchangeable machining unit with a generator that converts mechanical energy from the machining center's drive spindle into various forms of energy, using a detachable torque interface for connection, and includes a control device for self-regulation and energy generation, eliminating the need for electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If electrical interfaces and cable connections are provided for energy supply to the machining unit, then the machining unit can perform functions requiring energy (heating, driving actuators), but the flexibility and ease of use on different machining centers is reduced
Solution Approach 1:
The patent replaces the electrical energy supply system with a mechanical energy conversion system. A generator mounted on the machining unit converts mechanical rotational energy from the drive spindle into electrical energy, eliminating the need for external electrical cable connections. This substitution resolves the contradiction by maintaining energy supply capability while removing the restrictive electrical interfaces.
Solution Approach 2:
The machining unit becomes self-sufficient in energy generation through the integrated generator. The unit converts mechanical energy directly at the point of use, eliminating dependence on external electrical infrastructure. This self-service approach enables the machining unit to operate flexibly on any machining center with a drive spindle, regardless of electrical interface availability.
2Ease of operation
If a generator is provided on the machining unit for self-powered operation, then electrical cable connections are eliminated, but control and regulation of the drive becomes difficult due to lack of external control interface
Solution Approach 1:
The control device is integrated directly into the machining unit, merging the functions of energy generation and process control into a single unified system. The control device receives signals from sensors on the machining unit and autonomously regulates the drive, eliminating the need for complex external control interfaces while maintaining full control capability.
Solution Approach 2:
The machining unit performs self-control through the integrated control device that autonomously manages the drive based on sensor feedback. This self-service control system resolves the contradiction by providing full regulatory capability internally, eliminating dependence on external control infrastructure while maintaining operational complexity at an acceptable level.
3Extent of automation
If multiple sensors and control devices are integrated into the machining unit, then process monitoring and automation are improved, but the interface requirements and complexity increase
Solution Approach 1:
Sensors, control devices, and the energy generation system are merged into a single integrated machining unit. This consolidation allows multiple functions (sensing, controlling, energy generation) to operate cooperatively within one self-contained module, achieving high automation without proportionally increasing interface complexity. The integrated architecture enables automatic operation while maintaining a simple mechanical connection to the machining center.
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 flexible and efficient use of the machining unit on various machining centers with minimal interface requirements, allowing for automatic operation and process monitoring without additional electrical connections.
Implementation Method 1
a generator (10) for generating energy, selected from the group of electrical, hydraulic, pneumatic, and thermal energy, as well as radiation and vibration energy, from, in particular, mechanical rotational energy of a drive spindle (3)
Data Source
Figure 1
Figure 2
AI summary
An exchangeable machining unit (1) for a machining centre (2) for machining workpieces (5) that consist preferably at least partially of wood, wood-based materials, plastic or the like is disclosed, wherein the exchangeable machining unit (1) has a generator (10) for generating energy, selected from the group consisting of electrical, hydraulic, pneumatic, thermal energy, and radiation and vibration energy, in particular mechanical rotation energy of a drive spindle, in particular of a milling spindle, and has a drive (12) that can be supplied with energy by means of the generator (10). The generator (10) has an in particular releasable torque interface (14) for transmitting a torque from the outside to the machining unit (1). The generator (10) is set up to be driven by means of the torque, wherein the drive (12) is driven using the energy from the generator (10). A machining centre having such an exchangeable machining unit is also disclosed.