Cutting Head Clamping Assembly for Faster Tool Exchange
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Solution Overview
Problem
Existing cutting tool clamping mechanisms are intricate and time-consuming to assemble, leading to excessive tool exchange times and reduced productivity due to their complexity and requirement for precise dimensional accuracy.
Innovation Solution
A cutting tool part assembly with a clamping mechanism that uses a clamping element and fixation element to axially clamp two bodies together via radial and axial movement, utilizing a channel with a guide surface for easy assembly and disassembly, and a fixation element with oppositely threaded ends for quick locking, minimizing the number of components and simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing clamping mechanisms are used, then the cutting tool bodies can be clamped together, but the assembly process is intricate and time-consuming
Solution Approach 1:
The clamping mechanism is divided into distinct functional segments: a clamping element with clamping surfaces, abutment surfaces, and a guide surface, and a fixation element. This segmentation allows each component to perform its specific function independently, simplifying the overall assembly process while maintaining clamping effectiveness.
Solution Approach 2:
Instead of using complex multi-component clamping mechanisms that require precise alignment, the invention inverts the approach by using a simple clamping element that moves radially and axially along a guide surface. The fixation element simply locks the clamping element in position, reversing the traditional complex locking mechanism approach.
2Productivity
If existing clamping mechanisms are used, then the cutting tool bodies can be clamped together, but the tool exchange time is excessive
Solution Approach 1:
The invention extracts the essential clamping function from complex existing mechanisms, isolating only the necessary elements: a clamping element that provides clamping force through frictional contact and a fixation element that locks it in place. This extraction eliminates unnecessary components and reduces assembly time significantly.
Solution Approach 2:
The clamping element is pre-configured with guide surfaces and clamping surfaces that automatically align and engage with the cutting tool bodies. This preliminary configuration eliminates the need for complex alignment procedures during assembly, enabling rapid tool exchange.
3Strength
If the clamping element is moved radially inward, then the frictional contact increases and bodies are pulled together, but elastic deformation of the clamping element occurs
Solution Approach 1:
The invention utilizes parameter changes in the clamping element, specifically its elastic properties. As the clamping element moves radially inward along the guide surface, it undergoes controlled elastic deformation that increases frictional contact between clamping surfaces and abutment surfaces. This deformation is harnessed to enhance coupling strength rather than viewed as a defect.
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 provides a quick, convenient, and robust clamping mechanism that reduces assembly time, enhances coupling strength, and maintains reliability, even during cutting operations, by increasing frictional contact and allowing for elastic deformation of the clamping element.
Implementation Method 1
increases the frictional contact between at least one respective abutment surface (at each body) and respective clamping surfaces (at the clamping element) thereby forcing/pulling the tool bodies axially together
Implementation Method 2
provides elastic deformation of the clamping element and an associated increase in the strength and reliability of the couple during cutting
Data Source
AI summary
A cutting head attachment assembly for a cutting tool includes a body forming an axially forward part of the cutting tool attachable to a cutting head via a clamping element and a fixation element. A guide surface provided at the body or cutting head extends in both a radial and an axial direction to support movement of the clamping element in both the radial and axial directions via actuation of the fixation element to force and clamp together axially the head and body.