Wireless Handpiece Signal Control for Machine Tools
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Solution Overview
Problem
Existing machine tools with drive motor units and handpieces rely on wired signal transmission, which complicates the structure, hinders easy replacement of components, and introduces additional resistance during operation.
Innovation Solution
Implementing radio means for a wireless signal connection between the handpiece and the drive motor unit, allowing manual actuation to control the drive motor without the need for wired connections, and using energy converters and storage to ensure reliable signal function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired signal transmission is used between handpiece and drive motor unit, then signal connection is reliable, but device complexity increases due to cable connections
Solution Approach 1:
The patent replaces the mechanical cable connection system with a wireless communication system. The handpiece contains a transmitter that wirelessly transmits control signals to the drive motor unit, eliminating the need for physical cable connections while maintaining reliable signal transmission.
Solution Approach 2:
The patent extracts the signal transmission function from the mechanical cable connection. By separating the signal transmission function into an independent wireless communication system, the cable connection is removed entirely, simplifying the overall device structure while preserving the essential control function.
2Ease of manufacture
If wired signal transmission is used, then control function is ensured, but ease of operation deteriorates due to additional resistance from cable
Solution Approach 1:
The patent replaces the mechanical cable connection that creates resistance during operation with a wireless transmission system. This eliminates the physical drag and resistance that cables impose on handpiece movement, significantly improving ease of operation while maintaining full control functionality.
3Reliability
If cable connections are used for signal transmission, then electrical coupling is secure, but ease of repair worsens due to complex connection points
Solution Approach 1:
The patent extracts and removes the cable connection system entirely, replacing it with wireless communication. This eliminates the complex connection points between cables, handpieces, and drive motor units, making repair and component replacement significantly easier while maintaining secure electrical coupling through wireless means.
Solution Approach 2:
The patent segments the system into independent wireless communication modules in the handpiece and drive motor unit. This modular approach allows individual components to be replaced or repaired without affecting connection integrity, as each unit operates independently through wireless communication.
4Reliability
If wired connections are used between handpiece and drive motor unit, then signal transmission is stable, but device complexity increases due to connection components
Solution Approach 1:
The patent replaces the entire mechanical connection system with wireless transmission technology. The handpiece contains a transmitter that sends control signals wirelessly to the drive motor unit, completely eliminating cables, connectors, and associated connection components while maintaining stable signal transmission.
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 solution simplifies the structure by eliminating cable connections, enhances safety by ensuring mechanical actuation is linked to electrical unlocking, and reduces operational resistance, making the machine tool easier to handle and maintain.
Implementation Method 1
The energy converter has a generator of electrical energy which is non-rotatably connected to the tool holder
Implementation Method 2
The energy store has a capacitor and/or an accumulator in the form of a rechargeable battery
Implementation Method 3
The energy store has a capacitor and/or an accumulator in the form of a rechargeable battery
Implementation Method 4
radio means set up to set up a wireless signal connection between the handpiece and the drive motor unit
Data Source
AI summary
A machine tool (10) is presented, comprising a drive motor unit (14) having a drive motor (12), a flexible shaft (16) and a handpiece (18), wherein the handpiece (18) has a tool holder (18.1) which is movably mounted in the handpiece (18) and which can be driven by the drive motor (12) via the flexible shaft (16), and wherein the handpiece (18) has an operator request transmitter (20) designed for manual operation by an operator and the drive motor unit (14) is designed to control the drive motor (12) depending on the actuation of the operator request transmitter (20).The machine tool (10) is characterized by having radio means for establishing a wireless signal connection between the handpiece (18) and the drive motor unit (14), which are configured to respond to a manual actuation of the operator request transmitter (20), wherein the drive motor unit (14) is configured to control the drive motor (12) depending on the response of the radio means.