Handheld Power Tool Distance Control for Precision Machining
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hand-held power tools, such as drills, often require operator expertise to set optimal parameters like rotational speed and impact, which can lead to suboptimal machining results, especially for laypersons, and lack efficient depth control mechanisms.
Innovation Solution
A hand-held power tool with a control unit and sensor unit that generates distance signals to adapt operating parameters like speed, torque, and impact frequency based on real-time distance measurements, allowing for automatic adjustment and improved machining results without operator expertise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual parameter setting is used, then operator control is maintained, but machining precision deteriorates due to lack of expertise
Solution Approach 1:
The control unit automatically determines tool data from distance signals and adjusts operating parameters without operator intervention. The system serves itself by using sensor data to autonomously optimize machining parameters, eliminating the need for operator expertise while maintaining precision.
Solution Approach 2:
The control unit continuously receives distance signals from the sensor unit and uses this feedback to dynamically adjust operating parameters. This closed-loop control ensures machining precision by constantly adapting to actual tool-workpiece distance, replacing manual parameter setting with automated feedback-driven control.
2Manufacturing precision
If automated parameter adjustment is implemented, then machining precision improves, but device complexity increases
Solution Approach 1:
The control unit performs multiple functions: it determines tool data from distance signals, calculates optimal operating parameters, and adjusts tool operation. By consolidating these functions into a single multi-functional control unit, the system achieves automated parameter adjustment without proportionally increasing overall device complexity.
Solution Approach 2:
Manual mechanical parameter adjustment is replaced with an electronic control system that automatically determines tool data and adjusts parameters based on distance signals. This substitution of mechanical adjustment with electronic automation improves precision while the integrated nature of the control unit limits the increase in overall system complexity.
3Adaptability or versatility
If continuous distance measurement is used, then parameter adaptability improves, but energy consumption increases
Solution Approach 1:
The control unit dynamically adjusts operating parameters based on real-time distance measurements. This dynamic adaptation allows the system to respond to changing machining conditions, improving parameter adaptability while the continuous measurement enables timely adjustments without excessive energy waste.
Solution Approach 2:
The sensor unit continuously measures distance to maintain optimal operating parameters throughout the tool's operation. This continuous measurement ensures constant adaptability to changing conditions, and the system maintains useful action by constantly optimizing parameters rather than relying on periodic or manual adjustments.
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 and precise machining by automatically adjusting tool parameters based on distance signals, improving work progress and safety by preventing accidents through integrated sensors and control units.
Implementation Method 1
The distance can be determined optically, e.g., using laser and/or infrared radiation
Implementation Method 2
The distance can be determined optically, e.g., using laser and/or infrared radiation
Implementation Method 3
The distance can be determined optically, e.g., using laser and/or infrared radiation
Implementation Method 4
The distance can be determined optically, e.g., using laser and/or infrared radiation, by ultrasound
Data Source
Figure 1~3c
Figure 4~6
Figure 7~8
AI summary
The invention relates to a portable power tool with a control device comprising a control unit (12) and a sensor unit (14) for generating a distance signal. The invention provides that the control unit (12) designed for controlling at least one operating parameter of a tool carrying unit according to the distance signal.