Quick-Lock Chuck Mechanism for Single-Handed Power Tool Head Changes
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Solution Overview
Problem
Conventional power tool chucks are complex to manufacture and costly to maintain due to their intricate design, making it difficult to replace working heads efficiently and safely without specialized tools.
Innovation Solution
A chuck device with a locking mechanism, operation member, connection shaft, driving assembly, and stopper member that allows for single-handed operation, featuring a biasing element and limiting members to simplify clamping and unlocking processes, reducing the size and cost of the chuck while enhancing user convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional chuck design is used, then the working head can be clamped securely, but the manufacturing process becomes complicated and maintenance cost increases
Solution Approach 1:
The chuck device is divided into separate functional modules: a body portion, an operation member, a locking mechanism, and a driving assembly. This segmentation allows each component to be manufactured independently and simplifies the overall manufacturing process while maintaining secure clamping functionality through the coordinated interaction of these modular parts.
Solution Approach 2:
The locking mechanism and driving assembly are extracted as distinct components from the traditional integrated chuck design. The locking mechanism includes separate elements such as locking balls and grooves that can be manufactured independently, reducing manufacturing complexity while ensuring reliable clamping through the extraction and independent optimization of the locking function.
2Ease of operation
If a quick clamping chuck is designed for single-handed operation, then working head replacement becomes convenient, but manufacturing complexity and maintenance cost increase
Solution Approach 1:
The operation member combines multiple functions into a single component: it serves as both the user interface for operation and the driver for the locking mechanism. The operation member integrates the driving assembly within it, merging the operating lever and the locking actuator into one unified structure that enables single-handed operation without requiring complex external mechanisms.
Solution Approach 2:
The driving assembly is disposed inside the operation member, allowing the operation member to automatically drive the locking mechanism without requiring separate actuating components. The biasing element provides automatic resetting functionality, and the stopper member automatically limits the movement range, enabling the system to self-regulate and simplify operation.
3Reliability
If a complex locking mechanism is used, then the working head is securely locked, but the manufacturing process becomes more difficult and costly
Solution Approach 1:
The locking mechanism is segmented into simple geometric elements: locking balls with grooves, biasing elements, and stopper members. Each element can be manufactured using standard machining processes without requiring complex tooling or assembly steps, while the collective interaction of these simple elements provides reliable locking functionality.
Solution Approach 2:
The locking mechanism uses simple, easily replaceable components such as locking balls and biasing elements that can be manufactured at low cost. If any single component fails, it can be replaced independently without replacing the entire chuck assembly, reducing maintenance costs and simplifying the manufacturing process for each individual part.
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
The solution enables quick and convenient replacement of working heads with reduced maintenance costs and simplified operation, improving user experience and reducing the complexity of the chuck's manufacturing process.
Implementation Method 1
the biasing element is capable of providing a biasing force for maintaining the locking mechanism in the locking position and pushing the locking mechanism to be in the locking position
Data Source
AI summary
A power tool includes a chuck device for clamping a working component. The chuck device includes a locking mechanism, an operation member, a connection shaft, a driving assembly, and a stopper member. The locking mechanism implements a locking function. The operation member is operable to allow the locking mechanism to leave a locking position and is detachably connected to the connection shaft. The driving assembly drives the locking mechanism to be in the locking position. The stopper member is configured to limit the driving assembly.