Rotating Cutting Tool for Machining Thin Metal Objects
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Solution Overview
Problem
Machining elongated metal objects, such as thin plugs or contact pins, poses a risk of bending due to lateral pressure from traditional turning tools, especially when the objects are very thin, as they require precise control to avoid deformation during the machining process.
Innovation Solution
A tool with a cup-shaped cutting tool holder and plate-shaped cutting tool that allows for axial clamping and radial adjustment of the cutting tool, enabling precise coaxial alignment and support of the metal object through multiple cutting edges, reducing the risk of bending and allowing for high-precision turning without rotating the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional turning tools are used on lathes, then the metal object can be machined to produce desired diameter and surface finish, but the metal object may bend to the side due to lateral pressure from the turning tool
Solution Approach 1:
The patent inverts the traditional turning process by making the cutting tool rotate while the metal object remains stationary. This reversal eliminates the lateral pressure that causes thin metal objects to bend, as the cutting edges move through the stationary object rather than the tool pressing against a rotating object. The object is supported in a central bore and fed through the rotating tool, completely avoiding the bending problem.
Solution Approach 2:
The patent replaces the traditional lathe mechanical system with a new configuration where a rotary drive rotates the cutting tool instead of the metal object. This substitution fundamentally changes the mechanics of the machining process, eliminating the need for the object to rotate and be supported by lathe centers, thereby preventing bending of thin objects.
2Manufacturing precision
If the metal object is rotated on a lathe, then turning can be performed to achieve desired diameter, but extreme care must be taken to prevent bending of thin objects
Solution Approach 1:
The patent inverts the traditional approach by rotating the cutting tool while keeping the metal object stationary. This eliminates the need for complex lathe operations and center support setup, making the process easier to operate while maintaining diameter precision through the rotating cutting tool's controlled path.
Solution Approach 2:
The patent extracts the rotation function from the metal object and applies it only to the cutting tool. By taking out the rotation requirement from the workpiece, the process becomes simpler and less prone to operational errors, while the desired diameter precision is achieved through the controlled rotation of the cutting tool.
3Manufacturing precision
If multiple cutting edges are used to support and machine the metal object, then high-precision turning can be achieved without rotating the object, but the tool structure becomes more complex with clamping and adjusting means
Solution Approach 1:
The patent combines multiple cutting edges on a single rotating tool body, allowing them to work simultaneously on the stationary metal object. This merging of cutting functions into one rotating tool achieves high-precision turning without requiring multiple separate tools or complex lathe setups, balancing precision with manageable complexity.
Solution Approach 2:
The rotating cutting tool is designed with multiple cutting edges that can machine different sections of the metal object simultaneously. This multi-functional tool performs both support and machining functions, reducing the need for multiple specialized tools and simplifying the overall process while maintaining high precision.
Data Source
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AI summary
Tool for machining elongated metal objects (2) by machining by turning, characterized by a tool holder (3) with a cutting tool receptacle (4) and a cutting tool (5) detachably insertable and secured therein, having a plate-shaped tool body (11) with a central bore (12) and at least one cutting edge (13) projecting into it, wherein clamping and adjusting means (9) cooperating on the tool holder (3) and on the cutting tool (5) are provided for axially clamping the cutting tool (5) against a plate seat (10) provided in the cutting tool receptacle (4) and for adjusting the cutting tool (5) by radially displacing the cutting tool (5) relative to the tool holder (3).