Impact Rotary Tool Seating Detection Mode Selection
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Solution Overview
Problem
Existing impact rotary tools cannot accurately determine the seating of a fastener component at a timing intended by the user, as they rely on a fixed seating determination level, which may not align with the user's intended timing.
Innovation Solution
The impact rotary tool system includes a seating detector with multiple detection modes and an acquirer that allows users to select a specific mode for detecting the seating of a fastener component, enabling the tool to determine seating based on the selected mode, thereby approximating the detection timing to the user's intended timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed seating determination level is used to detect fastener seating, then the detection method is simple, but the detection timing cannot match the user's intended timing
Solution Approach 1:
The patent implements multiple seating detection modes (impact-based mode, torque-based mode, and rotation angle-based mode) that can be dynamically selected based on user needs. The controller switches between different detection algorithms depending on the selected mode, allowing the detection timing to be adjusted without changing the physical structure of the tool.
Solution Approach 2:
The patent changes the detection parameters by offering different detection modes: impact mode detects seating through impact force changes, torque mode detects through torque variations, and rotation angle mode detects through angular displacement. This allows users to select the appropriate parameter based on their specific application requirements.
2Adaptability or versatility
If multiple seating detection modes are provided, then the user can select the appropriate detection timing, but the device complexity increases
Solution Approach 1:
The controller is designed to perform multiple detection functions using a single integrated system. It can process impact signals, torque signals, and rotation angle signals, and select among different detection modes based on user input, making the device universally applicable to various fastening scenarios.
Solution Approach 2:
The controller acts as an intermediary that receives data from sensors (impact sensors, torque sensors, rotation angle sensors) and processes this information according to the selected detection mode. It mediates between the raw sensor data and the final seating determination, simplifying the overall system architecture.
3Measurement precision
If impact-based seating detection is used, then the detection is straightforward, but it may not accurately reflect the user's intended seating timing
Solution Approach 1:
The system dynamically selects the detection method based on the selected mode. In impact mode, it uses impact force changes; in torque mode, it uses torque variations; in rotation angle mode, it uses angular displacement. This dynamic selection ensures both precision and adaptability.
Solution Approach 2:
The patent changes the measurement parameter based on the detection mode: impact force for impact mode, torque for torque mode, and rotation angle for rotation angle mode. This allows the system to achieve high measurement precision while maintaining versatility across different fastening applications.
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 configuration increases user-friendliness by allowing users to select the appropriate seating detection mode, ensuring the fastener component is seated at the intended timing, enhancing the tool's accuracy and usability.
Implementation Method 1
an impact mechanism configured to perform an impact operation to repeatedly generate, from a motive power of a motor, impact force acting on an output shaft
Data Source
AI summary
An impact rotary tool includes a motor, an output shaft configured to hold a tip tool and configured to rotate by a motive power of the motor, an impact mechanism configured to perform an impact operation to repeatedly generate, from the motive power of the motor, impact force acting on the output shaft, and a seating detector configured to detect a seating of a fastener component which is a state where the fastener component rotated by the tip tool is just seated on a work target. The seating detector has a plurality of seating detection modes. The impact rotary tool further includes an acquirer configured to acquire information indicative of one seating detection mode selected from the plurality of seating detection modes. The seating detector is configured to detect the seating of the fastener component based on the one seating detection mode indicated by the information acquired by the acquirer.