Hydraulic Expansion Tool Holder for Precise Cutting Circle Adjustment
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Solution Overview
Problem
Existing tool systems for machining workpieces require complex gear mechanisms with gear backlash, leading to precision loss and increased maintenance and manufacturing costs in adjusting the cutting circle.
Innovation Solution
A tool system comprising a single-edged slip-on element and a carrier body with a hydraulic expansion element, allowing for reversible and adjustable attachment of the cutting element, enabling precise adjustment of the cutting circle diameter through simple rotational movements without the need for complex gear mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a gear mechanism is used to adjust the cutting circle, then the cutting circle can be adjusted, but precision is reduced due to gear backlash and device complexity increases
Solution Approach 1:
The patent removes the gear mechanism entirely from the system. Instead of using a conversion device with intermeshing threaded elements, the invention directly couples the actuating device to the eccentric, eliminating the intermediate gear mechanism that causes backlash and precision loss.
Solution Approach 2:
The cutting element is nested within the carrier body, which itself is mounted on the eccentric. This nested structure allows the cutting element to follow the eccentric's orbital motion while maintaining precise radial adjustment through direct mechanical coupling without intermediate gears.
2Adaptability or versatility
If a gear mechanism is used to adjust the cutting circle, then the cutting circle can be adjusted, but maintenance effort and manufacturing costs increase
Solution Approach 1:
The patent extracts and removes the complex conversion device with intermeshing gears from the system. The simplified design directly couples the actuating device to the eccentric, eliminating multiple moving parts that require maintenance and increase manufacturing complexity.
Solution Approach 2:
Instead of using a complex conversion device to transform rotational motion into radial adjustment, the invention inverts the approach by using the eccentric's natural orbital motion and directly actuating it to achieve the same adjustment function with simpler mechanics.
3Device complexity
If the cutting element is fixed on the carrier body, then structural simplicity is achieved, but adaptability to different cutting circle diameters is reduced
Solution Approach 1:
The patent makes the cutting element dynamically adjustable relative to the carrier body. The actuating device enables the cutting element to be positioned at different radial distances from the rotation axis, allowing adaptation to different cutting circle diameters while maintaining overall structural simplicity.
Solution Approach 2:
The invention changes the radial position parameter of the cutting element relative to the rotation axis. By adjusting this parameter through direct actuation of the eccentric, the system achieves adaptability to different cutting circle diameters without complicating the overall structure.
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 tool system achieves high precision and user-friendly operation by allowing for precise adjustment of the cutting circle diameter, reducing maintenance efforts and manufacturing costs while maintaining structural simplicity.
Implementation Method 1
In a tensioned state, the hydraulic expansion element ensures a reversible, elastic and radial deformation of the carrier body or the plug-on body
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
a mounting element (2, 1101, 1102, 2000), a carrier body (3, 1103) and a hydraulic expansion element (8, 1108) formed in the carrier body (3, 1103) or in the mounting element (2, 1101, 1102, 2000), wherein the single-edged mounting element (2, 1101, 1102) can be mounted onto the carrier body (3, 1103) following a cutting circle (501, 502) that is centered on the drive axis and adjustable in diameter, by forming on the outer circumference an outer support circle (900, 1900a, 1900b) that is eccentric with respect to the cutting circle (501, 502).