Cutting Head Key Assembly With Flexible Sleeve Clamping
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Solution Overview
Problem
Existing rotary cutting tools face challenges in easily attaching and detaching small cutting heads with diameters between 4 mm to 5.99 mm to tool holders, requiring improved mechanisms for secure and efficient mounting and dismounting.
Innovation Solution
A cutting tool key with a rotatable handle component, a locking member, and an elastically flexible sleeve member that surrounds the cutting head, allowing for adjustable attachment and detachment by rotating the key until the cutting head is securely fastened or released from the tool holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional cutting tool keys are used to attach small cutting heads (4-5.99 mm diameter), then the attachment mechanism becomes complex and difficult to operate, but using simpler mechanisms fails to provide secure fastening for small cutting heads
Solution Approach 1:
The patent employs a flexible sleeve member that elastically deforms to engage and disengage the cutting head from the tool holder. The sleeve's flexibility allows it to compress during attachment and expand during detachment, providing a simple yet secure connection mechanism without complex moving parts or multiple components.
2Reliability
If conventional locking mechanisms are used for small cutting heads, then secure fastening is achieved, but the attachment and detachment process becomes time-consuming and reduces productivity
Solution Approach 1:
The flexible sleeve member performs multiple functions automatically: it guides the cutting head into position, secures it through elastic deformation, and releases it upon compression. This self-service mechanism eliminates the need for separate locking steps or complex actuation mechanisms, enabling rapid attachment and detachment while maintaining secure fastening.
3Adaptability or versatility
If the cutting tool key is designed for small cutting heads (4-5.99 mm), then versatility is improved, but the gripping force and locking capability are reduced
Solution Approach 1:
The patent utilizes elastic deformation as the key parameter change mechanism. The flexible sleeve member's elastic modulus and deformation characteristics are optimized to provide sufficient gripping force on small cutting heads while maintaining the ability to release easily. The elastic properties enable the sleeve to generate adequate locking force through compression without requiring complex mechanical advantage systems.
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 easy and secure attachment and detachment of small cutting heads to tool holders, ensuring reliable operation and versatility across various cutting head sizes, with the flexible sleeve providing a secure clamp and aiding in assembly visibility.
Implementation Method 1
the sleeve member is elastically flexible and circumferentially surrounds the head receptacle portion
Implementation Method 2
the flexible sleeve providing a secure clamp
Data Source
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AI summary
A cutting tool key includes a handle component, for actuating rotation of the cutting tool key and a locking member that is attached to the handle component. The locking member includes a head receptacle portion at a rear end thereof and a sleeve member attached to the locking member. The sleeve member is elastically flexible and circumferentially surrounds the head receptacle portion. A cutting head key assembly includes a cutting head that is located at the head receptacle portion and elastically clamped thereat by the sleeve member. The cutting head key is rotated to releasably attach the cutting head to the tool holder.