Multi-Axis Lathe for 3D Curved Surface Machining
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Solution Overview
Problem
Conventional lathes are limited to machining only two-dimensional curved surfaces with rotary features due to restricted cutter movement, requiring additional polishing steps for better appearance and unable to handle three-dimensional curved surfaces effectively.
Innovation Solution
A lathe equipped with a feeding device capable of moving along the X, Y, and Z axes, combined with a rotating work table and a high-speed reciprocating cutter, allows for continuous machining of three-dimensional curved surfaces without the need for additional processing steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional lathe is used for machining curved surfaces, then the structure remains simple and operation is easy, but only two-dimensional curved surfaces with rotary features can be machined due to limited cutter movement
Solution Approach 1:
The patent applies dimensionality change by adding multi-axis movement capabilities (X, Y, Z axes) to the traditional lathe cutter, transforming it from a single-degree-of-freedom rotating tool into a multi-axis coordinated system. This enables the cutter to approach and machine workpiece surfaces from multiple directions, thereby achieving three-dimensional curved surface machining capability while maintaining the core lathe structure.
Solution Approach 2:
The patent implements dynamics by introducing a reciprocating mechanism that enables the cutter to perform high-speed reciprocating motions in addition to rotation. This dynamic movement pattern, combined with multi-axis coordination, allows the cutter to adapt its path and orientation continuously during machining, achieving complex three-dimensional surface geometry that static or single-motion tools cannot produce.
2Shape
If a milling cutter with different cutting edges is used for machining curved surfaces, then three-dimensional curved surfaces can be machined, but tracks are formed on the milled surface due to intermitted contact and interrupted milling
Solution Approach 1:
The patent applies continuity of useful action through the reciprocating cutter mechanism that maintains continuous contact with the workpiece surface during machining. The high-speed reciprocating motion ensures uninterrupted cutting action, eliminating the tracks and discontinuities that occur with conventional milling cutters that engage and disengage intermittently. This continuous cutting action produces a smooth surface finish without requiring additional polishing steps.
3Shape
If a milling cutter is used for machining curved surfaces, then three-dimensional surfaces can be machined, but additional polishing steps are required for better appearance
Solution Approach 1:
The reciprocating cutter maintains continuous cutting contact with the workpiece, producing a smooth surface finish in a single machining operation. This eliminates the need for separate polishing steps, thereby improving productivity while achieving the desired three-dimensional surface geometry.
4Device complexity
If a conventional lathe cutter is used, then the device structure remains simple, but the cutter movement is limited and cannot handle complex geometries
Solution Approach 1:
The patent adds multi-axis movement dimensions to the traditional lathe cutter, enabling it to access and machine complex three-dimensional geometries that would be impossible with conventional single-axis lathe operation.
Solution Approach 2:
The reciprocating mechanism introduces dynamic motion capabilities that allow the cutter to adapt to complex surface geometries through high-speed reciprocating movements combined with multi-axis coordination, significantly enhancing versatility while building upon the simple lathe foundation.
Data Source
AI summary
A lathe includes a machine support, a work table, a moving device and a feeding device. The work table is rotatably positioned on the machine support for driving a workpiece placed on the work table to rotate. The moving device is movably mounted, slidably on the machine support along a first direction above the work table. The feeding device is slidably positioned on the moving device along a second direction vertical to the first direction, the feeding device includes a cutter. The feeding device drives the cutter backwards and forwards under precise control at high speed along a third orthogonal direction for machining the workpiece.