Spring-Urged CNC Tool Holder Clamp for Wear-Resistant Positioning
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Solution Overview
Problem
Existing CNC tool holder clamps suffer from wear and tear due to yielding engagement during tool insertion and removal, affecting their longevity and precision positioning.
Innovation Solution
A tool holder clamp with adjustable, spring-urged jaws that provide secure and precise engagement of CNC tool holders, using contoured registration surfaces and alignment pins for automated tool exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If fixed contoured clamps made of synthetic resin are used, then the structure is simple and easy to manufacture, but wear and tear occurs during tool insertion and removal affecting longevity
Solution Approach 1:
The patent applies the dynamics principle by transitioning from a fixed rigid clamp structure to a resilient clamp that can dynamically adjust during tool holder engagement. The resilient material allows the clamp to flex and yield during insertion and removal operations, then return to its original position, thereby reducing wear while maintaining structural integrity and extending service life.
Solution Approach 2:
The patent implements parameter changes by modifying the physical properties of the clamp material from rigid synthetic resin to resilient material. This change in material parameter enables the clamp to exhibit elastic deformation during tool holder engagement, allowing it to accommodate wear without permanent deformation, thus extending longevity while remaining manufacturable.
2Ease of operation
If yielding engagement is provided during insertion and removal, then ease of operation is improved, but wear and tear increases affecting precision positioning
Solution Approach 1:
The patent changes the material parameter from rigid to resilient, enabling controlled elastic deformation during operation. This allows the clamp to yield during insertion and removal for ease of operation, while the resilient nature ensures it returns to its precise original position, maintaining positioning accuracy and preventing cumulative wear damage.
Solution Approach 2:
The resilient clamp provides beforehand cushioning by absorbing impact and stress during tool holder insertion and removal. This cushioning effect protects the precision positioning surfaces from direct contact and wear, while still allowing smooth operation, thus preserving manufacturing precision over time.
3Duration of action of stationary object
If resilient material is used for the clamp, then longevity is improved by reducing wear, but the material must maintain precise positioning capability
Solution Approach 1:
The patent carefully selects and engineers the resilient material to have specific parameter ranges - sufficient elasticity to reduce wear during engagement, but adequate stiffness to maintain precise positioning. This optimized parameter selection allows the clamp to simultaneously achieve enhanced longevity through wear reduction and maintain the required manufacturing precision for CNC tool holder positioning.
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 the longevity and precision of tool holder clamps by minimizing wear and ensuring consistent positioning, thereby improving the reliability of automated CNC tool changes.
Implementation Method 1
A resilient tool holder clamp for CNC applications includes a fixed jaw and a movable jaw, oppositely disposed and cooperatively defining a tool holder receiving space therebetween. The movable jaw is biased by a spring toward the fixed jaw.
Implementation Method 2
A resilient tool holder clamp for CNC applications includes a fixed jaw and a movable jaw, oppositely disposed and cooperatively defining a tool holder receiving space therebetween.
Data Source
AI summary
A spring urged tool holder clamp for CNC tool holder magazines that hold a variety of cutting and milling tools for automatic tool changes to a spindle for milling. The individual tool holders are removably secured and held by resilient clamping that frictionally engages the tool holder in place. Independent pivoted opposing engagement jaws on the tool holder clamp diminishes wear and maintains precise positioning of the tool holder critical to the automatic tool loading.