Reciprocating Feeding Device for Curved Surface Machining
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Solution Overview
Problem
Current feeding devices in machine tools are inefficient when machining curved surfaces, as they require significant time to lift and move to different positions on the workpiece, reducing machining efficiency.
Innovation Solution
A feeding device with a tool holder, cutter, and mounting seat, where the tool holder is driven by alternating magnetic fields produced by forcers and magnetic fields from stators, allowing precise and high-speed movement along guiding portions, eliminating the need for the device to move during machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the feeding device is driven to lift and move to different positions by the main shaft, then the workpiece can be machined at multiple positions, but the machining time increases and efficiency decreases
Solution Approach 1:
Instead of moving the feeding device to different positions sequentially, the invention inverts the approach by enabling the cutter to perform high-speed reciprocating movements at a fixed position, thereby machining multiple positions of the workpiece without requiring the feeding device to relocate, thus eliminating position-change time
Solution Approach 2:
The invention introduces dynamic reciprocating motion capability to the cutter through the linear motor driver, allowing the cutter to rapidly move back and forth along the guiding portion. This dynamic movement enables the cutter to access multiple workpiece positions without moving the entire feeding device, significantly reducing positioning time while maintaining machining versatility
2Manufacturing precision
If the feeding device moves to different positions between machining operations, then complete machining of the curved surface is achieved, but the overall machining efficiency is reduced
Solution Approach 1:
The invention segments the machining function by separating the positioning function (feeding device remains stationary) from the cutting function (cutter performs reciprocating movements). The cutter is divided into independent reciprocating motion capability, allowing it to sequentially machine different portions of the curved surface without requiring the entire feeding device to move, thus maintaining precision while improving efficiency
Solution Approach 2:
The cutter performs periodic reciprocating movements along the guiding portion, alternating between advancing to machine new portions of the curved surface and returning to the starting position. This periodic action enables complete machining of the curved surface through repeated cycles of high-speed reciprocating cuts, achieving comprehensive coverage without time-consuming repositioning of the feeding device
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 enables continuous machining of curved surfaces without the need for the feeding device to change positions, significantly reducing machining time and improving efficiency by maintaining high-speed movement of the cutter along the Z-axis.
Implementation Method 1
Interactions between alternating magnetic fields produced by the forcers and magnetic fields produced by the stators drive the tool holder and cutter under precise control along the guiding portion
Implementation Method 2
Interactions between alternating magnetic fields produced by the forcers and magnetic fields produced by the stators drive the tool holder and cutter
Data Source
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AI summary
A feeding device (40) includes a tool holder (45), a cutter (49), a feeding mechanism (47) and a mounting seat (43). The cutter is positioned on the tool holder. The mounting seat has at least one guiding portion (4317). The tool holder is engaged with the at least one guiding portion. The feeding mechanism drives the tool holder and the cutter to controllably reciprocate along the at least one gliding portion.