Interchangeable Hydraulic Tool Heads With Automatic Force Adjustment
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Solution Overview
Problem
Hydraulic power tools are often specialized for specific tasks, requiring multiple tools to perform different operations, which is expensive and inconvenient, especially in difficult-to-access job sites, due to their fixed force design and task-specific configurations.
Innovation Solution
A portable, hand-held hydraulic power tool with interchangeable heads that automatically detects the type of head and die configuration, adjusting the applied force based on the task requirements, allowing a single tool frame to perform various tasks with reduced weight and bulk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If hydraulic power tools are designed with fixed force for specific tasks, then they provide sufficient power and reliability for industrial tasks, but multiple specialized tools are required for different tasks, increasing cost and equipment weight
Solution Approach 1:
The hydraulic power tool is designed with interchangeable heads that allow a single tool frame to perform multiple tasks. Different heads (cutting head, crimping head, stripping head) can be attached to the same tool frame, enabling one tool to replace multiple specialized tools while maintaining the required force and reliability for each specific task
2Force
If multiple specialized hydraulic tools are carried for different tasks, then appropriate force is available for each task, but equipment weight and bulk increase significantly
Solution Approach 1:
By creating a universal tool frame that can accommodate multiple interchangeable heads, the system eliminates the need to carry multiple separate hydraulic tools. The single tool frame with its attached battery and hydraulic system provides all necessary force capabilities, while only the lightweight heads need to be exchanged between tasks
Solution Approach 2:
The tool is divided into a permanent tool frame and interchangeable heads. This segmentation allows the heavy components (battery, hydraulic system, motor) to remain in one unit while only the lightweight functional heads are exchanged, significantly reducing the weight that must be handled during task transitions
3Adaptability or versatility
If interchangeable heads are added to allow multiple tasks, then equipment cost and weight are reduced, but the tool must automatically detect head type and adjust force accordingly, increasing control system complexity
Solution Approach 1:
The controller includes a sensor that automatically detects which head is attached to the tool frame and receives input about the workpiece characteristics. Based on this feedback, the controller automatically adjusts the hydraulic system to apply the appropriate force for the specific task and material, eliminating the need for manual force calibration
Solution Approach 2:
The system performs self-adjustment by automatically detecting the head type and workpiece characteristics, then autonomously configuring the appropriate force settings without requiring operator intervention. This self-service capability simplifies the user interface while maintaining precise force control
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 a single tool to perform multiple tasks efficiently, reducing equipment costs and weight, while ensuring appropriate force application for different tasks and materials, enhancing operational flexibility and convenience.
Implementation Method 1
Some portable tools incorporate a hydraulic pump to drive a piston to apply a relatively large amount of force or pressure for a particular task
Implementation Method 2
the controller includes a sensor that automatically detects which working head is attached to the tool frame
Data Source
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AI summary
Portable, hand held, battery operated, hydraulic tools are provided with a tool frame and one or more interchangeable working heads. When the working head is connected with the tool frame, a piston actuated by a hydraulic system within the tool frame applies force to the working head to perform a task. The tool includes a sensor for detecting the type of head connected with the tool and a mechanism for adjusting the amount of force applied to the head by the hydraulic system based on the detected head type.