Clamp with Conical Seating for Controlled Deformation
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Solution Overview
Problem
Conventional clamping devices in machine tools, such as bar-turning machines, cause axial displacement of cylindrical elements during the transition between contracted and relaxed states, which can alter the geometry of the elements, particularly the end faces, due to insufficient radial deformability.
Innovation Solution
Incorporation of a second elongated member with radial cutouts and a limiting part that restricts excessive radial contraction, allowing for controlled deformation without axial displacement, by adjusting the distances and dimensions of the cutouts and limiting parts within the clamp design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the clamp is made rigid to maintain structural strength, then the strength is improved, but the radial deformability deteriorates causing axial displacement of the element
Solution Approach 1:
The clamp is divided into multiple segments or sections along its length, with different levels of deformability. The first section (closer to the element) has higher radial deformability to prevent axial displacement, while the second section maintains greater structural strength. This segmentation allows each part to optimize its properties for its specific function.
Solution Approach 2:
Different regions of the clamp are given different mechanical properties. The portion of the clamp that contacts or is closest to the element is designed with higher radial deformability, while other portions maintain greater rigidity for overall structural support. This local differentiation resolves the contradiction between needing deformability at the contact point and strength in the overall structure.
2Adaptability or versatility
If the clamp is made highly deformable to accommodate element geometry changes, then the radial deformability is improved, but the structural strength deteriorates
Solution Approach 1:
The clamp is divided into multiple segments or sections along its length, with different levels of deformability. The first section (closer to the element) has higher radial deformability to prevent axial displacement, while the second section maintains greater structural strength. This segmentation allows each part to optimize its properties for its specific function.
Solution Approach 2:
Different regions of the clamp are given different mechanical properties. The portion of the clamp that contacts or is closest to the element is designed with higher radial deformability, while other portions maintain greater rigidity for overall structural support. This local differentiation resolves the contradiction between needing deformability at the contact point and strength in the overall structure.
3Adaptability or versatility
If the clamp undergoes large deformation to ensure full release in relaxed state, then the adaptability is improved, but the manufacturing precision deteriorates due to excessive elastic movement
Solution Approach 1:
The clamp is divided into multiple segments or sections along its length, with different levels of deformability. The first section (closer to the element) has higher radial deformability to prevent axial displacement, while the second section maintains greater structural strength. This segmentation allows each part to optimize its properties for its specific function.
Solution Approach 2:
Different regions of the clamp are given different mechanical properties. The portion of the clamp that contacts or is closest to the element is designed with higher radial deformability, while other portions maintain greater rigidity for overall structural support. This local differentiation resolves the contradiction between needing deformability at the contact point and strength in 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
This solution prevents axial displacement of the element during clamping and de-clamping, maintaining the geometry of the element by allowing controlled deformation without hindering the elastic movement of the clamp, thus ensuring precise holding and machining processes.
Implementation Method 1
is deformable between two states including, on the one hand, a contracted state in which the second bearing is in the position of forceful support around the cylindrical gripping portion of an element and, on the other hand, a relaxed state in which said second bearing surface is in a position separated from said cylindrical gripping portion
Data Source
Figure 1
Figure 2~6
Figure 3
AI summary
The device has a clamp piece (10) with a cut (1000) extended from a surface (101) of the clamp piece in distance (D5). An elongated component (50) is located in the clamp piece, and has a part (51) to limit radial contraction of the clamp piece, to a preset value, in a zone extended between longitudinal limits (L1, L2). The limit (L1) is positioned at distance (D6) of the surface, where the distance (D6) has a value between distance (D5) and preset distance (D4) of an element (2). Another limit is positioned at third distance of the surface, where the third distance has preset value.