Quick-Coupling Handheld Screw Drive for Interchangeable Tools
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Solution Overview
Problem
Existing handheld pulling and pushing devices have limited connection and drive options for interchangeable tools, necessitating complex and error-prone manual quick-release couplings.
Innovation Solution
A handheld device with a quick-release coupling mechanism operated by an electric drive, featuring a sensor unit for status detection and display, and a communication unit to ensure safe and easy tool attachment and detachment, allowing for a wide range of tool fixtures including rotary tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a standardized connecting section with quick-action coupling is added to the housing body, then the adaptability and versatility of the device is significantly increased, allowing attachment of various tool devices including rotary tools, but the device complexity increases due to the additional coupling mechanism and sensor units
Solution Approach 1:
The housing body is equipped with a standardized connecting section that can accommodate various tool devices including pulling tools, pressing tools, and rotary tools through a universal quick-action coupling mechanism. This allows a single device to perform multiple functions across different applications.
Solution Approach 2:
A quick-action coupling mechanism serves as an intermediary component between the housing body and various tool devices. This coupling includes sensor units that mediate the connection status detection, enabling automatic recognition and status monitoring without complex manual intervention.
2Ease of operation
If a quick-action coupling mechanism is implemented for attaching and detaching tool devices, then the ease of operation is significantly improved by enabling quick changes without additional tools, but the device complexity increases due to the coupling mechanism and integrated sensor units
Solution Approach 1:
The quick-action coupling mechanism is designed to be operated directly by the user without requiring additional tools or equipment. The coupling itself incorporates the functionality needed for attachment and detachment, making the system self-sufficient for tool changes.
Solution Approach 2:
Traditional mechanical coupling mechanisms are replaced with an integrated quick-action coupling system that incorporates sensor units for automatic status detection. This substitution eliminates the need for manual verification and reduces the complexity of tool changes while maintaining mechanical functionality.
3Reliability
If sensor units and display units are integrated into the device for detecting and signaling coupling status, then the reliability of operation is improved by preventing incorrect operation, but the device complexity and manufacturing cost increase
Solution Approach 1:
Sensor units are integrated into the quick-action coupling mechanism to detect the coupling status (attached or detached). This status information is fed back to a display unit that signals the operator, providing real-time feedback to prevent incorrect operation and ensure safety.
Solution Approach 2:
Sensor units act as intermediaries between the mechanical coupling status and the control system. These sensors automatically detect and transmit status information without requiring manual input, while display units serve as intermediaries to communicate this information to the operator in an intuitive manner.
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
Enhances operational safety and ease of use by enabling quick and secure tool changes with minimal risk of incorrect operation, facilitating versatile application across various tasks.
Implementation Method 1
a screw drive with a threaded spindle (6) connected to the drive unit and rotatably mounted on a housing body (5), and a threaded nut (7) rotatably mounted on the threaded spindle (6)
Data Source
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AI summary
The invention relates to a handheld pulling and pushing device for driving interchangeable tools, comprising a drive unit with a battery-powered electric motor, a threaded drive with a threaded spindle connected to the drive unit and rotatably mounted on a housing body, and a threaded nut rotatably mounted on the threaded spindle and rotationally fixed to the housing body via a bearing unit, and a coupling unit connected to a tool holder for transmitting the tensile and compressive forces resulting from the rotation of the threaded spindle from the threaded nut to the tool holder. To provide a handheld pulling and pushing device that can be used flexibly, the housing body is provided with a connection section for the detachable attachment of a tool to the pulling and pushing device.