Elastic Centering Ring for Rotary Tool Precision
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Solution Overview
Problem
Existing tool arrangements in mechanical engineering face challenges in achieving precise centric clamping of rotary tools on mandrels due to tolerance issues in fits, leading to manufacturing errors and increased wear.
Innovation Solution
A universal centering device designed as a closed, elastically deformable centering ring with radially protruding outer and inwardly protruding inner centering areas, which distributes tension evenly for precise alignment and can be adjusted for various applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw connection is used to secure the rotary tool on the mandrel, then the rotary tool can be fixed in place, but sufficient concentric clamping cannot be achieved due to fit tolerances
Solution Approach 1:
A centering ring is introduced as an intermediary component between the mandrel and the rotary tool. This centering ring compensates for fit tolerances and enables precise concentric clamping, resolving the contradiction between reliable fixation and manufacturing precision.
2Reliability
If a segmented clamping device with radially outwardly projecting clamping segments is used, then good centric clamping can be achieved, but the device complexity increases
Solution Approach 1:
The complex segmented clamping device is replaced by extracting only the essential centering function. A simple centering ring with an elastically deformable contour is used instead of multiple clamping segments, reducing device complexity while maintaining centric clamping accuracy.
Solution Approach 2:
The centering ring features an elastically deformable contour that allows it to flex and adapt to the rotary tool, providing effective centering without the need for complex rigid segmented structures.
3Ease of operation
If rubber elements are used to connect clamping segments, then the segmented clamping device can be held together and facilitated for release, but the manufacturing cost and complexity increase
Solution Approach 1:
The rubber elements connecting multiple clamping segments are eliminated by extracting the essential function to a single centering ring. This simplifies manufacturing and reduces costs while maintaining ease of operation for tool release.
4Adaptability or versatility
If a universal centering device is designed, then it can be used for a variety of internal clamping devices, but the design must balance simplicity with precision
Solution Approach 1:
The centering ring is designed as a universal component that can be applied to various internal clamping devices. Its simple elastic contour design provides both versatility for different applications and sufficient precision for accurate centering.
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 high-precision centering of rotary tools on mandrels, reducing manufacturing errors and wear while being easy to manufacture and adaptable for multiple internal clamping devices.
Implementation Method 1
the centering ring is positioned between them and clamps itself due to elastic deformation
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a centering device for centrally chucking a rotary tool (2) comprising a socket (5) on a mandrel (4) of a tool holder (1). The invention also relates to a tool arrangement comprising a tool holder (1) that includes a mandrel (4), and comprising a rotary tool (2) that is placed on the tool holder (1) and includes a socket (5). In order to create a universal centering device that is easy to manufacture and can be used for a multitude of internal chucking units, and create a tool arrangement in which the rotary tool can be centered with high accuracy on the internal chucking unit, the centering device is designed as a closed centering ring (6) which can be inserted between the rotary tool (2) and the mandrel (4) and which has an elastically deformable contour, and such a centering device is disposed between the mandrel (4) and the rotary tool (2) in the tool arrangement.