Cutting Tool Holder Extraction Device With Intermediary Cup
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Solution Overview
Problem
Existing cutting tool holder extraction devices often cause damage to the base during the removal of worn or damaged tool holders, necessitating costly replacements.
Innovation Solution
A cutting tool holder extraction device comprising a cup with a rearward socket and a front tool socket, an expandable jack, a threaded bolt, and a nut system that applies pressure to extract the tool holder while minimizing base damage by ensuring alignment and secure removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional extraction device is used to remove worn tool holders, then the tool holder can be removed from the base, but the base bore may be damaged by improper extraction direction or force application
Solution Approach 1:
The cup serves as an intermediary device between the extraction force and the tool holder. It distributes the extraction force evenly across the tool holder's mounting surface and guides the removal direction along the base bore axis, preventing direct application of force that could damage the base bore while still achieving effective tool holder removal
Solution Approach 2:
The cup is positioned and secured to the tool holder before extraction begins. The spacer section is pre-installed to establish the correct axial alignment, and the extraction device is assembled with all components (cup, spacer, jack, bolt, nut) in their proper positions before applying extraction force, ensuring the base bore is protected from the start of the operation
2Productivity
If extraction force is applied directly to the tool holder, then removal can be achieved, but misalignment may cause the sleeve to be removed in a direction that damages the base bore
Solution Approach 1:
The cup is pre-positioned on the tool holder with the spacer section already installed to establish correct axial alignment. The extraction device is assembled with all components in their proper positions before applying force, ensuring the extraction direction is precisely aligned with the base bore axis from the start of the operation
Solution Approach 2:
The cup acts as an intermediary that transmits extraction force while maintaining precise axial alignment with the base bore. The spacer section within the cup ensures the tool holder is correctly positioned relative to the extraction force application point, preventing misalignment and directional errors that could damage the base bore
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 device effectively removes tool holders from bases with minimal damage, preventing base bore damage and reducing the need for unnecessary replacements.
Implementation Method 1
an expandable jack, the jack having an axial bore, and a front face; the front face of the jack is removably engageable with the rearward socket of the cup; a threaded bolt, the bolt having a front end and a rear end, the bolt removably disposable through the cup bore and through the jack bore
Implementation Method 2
The bolt and nut assembly creates a friction-based mechanical advantage system that applies controlled extraction force along the axial direction, preventing lateral movement and base bore damage
Data Source
AI summary
A cutting tool holder extraction devise comprising a cup, having a back portion having a rearward socket and a front portion having a forward tool socket, and a spacer section having an axial bore with a back orifice opening in the bottom of the rearward socket and a front orifice opening in the bottom of the tool socket; an expandable jack, the jack having an axial bore, and a front face; the front face of the jack is removably engageable with the rearward socket of the cup; a threaded bolt, the bolt having a front end and a rear end, the bolt removably disposable through the cup bore and through the jack bore; and at least one nut, removably attachable to the threaded bolt.