Rotary CNC Machine Table With Station-Anchored Vibration Isolation
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Solution Overview
Problem
Numerical control tool machines face challenges in reducing vibrations during high-power machining operations, which can propagate to other stations, complicating system compensation and affecting machining precision.
Innovation Solution
A method involving a rotatable table and multiple machining stations, where the piece or support is alternately fixed to the table or a station, with radial translation and recalibration to confine vibrations, and a system for efficient tool transfer and machining, including pass-through openings and precise anchoring mechanisms to enhance machining precision and reduce vibration propagation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-power machining operations are performed at a station, then machining power and productivity are improved, but vibrations propagate to other stations affecting machining precision
Solution Approach 1:
The workpiece support is segmented into two distinct states: integrated with the table for transport, and integrated with the station for machining. This segmentation allows vibrations from high-power machining to be confined to the local station rather than propagating through the entire table structure to affect other stations, while still enabling high-power machining operations at each station.
Solution Approach 2:
The support dynamically changes its integration state between table and station based on the operational phase. During transport, the support is integrated with the table for efficient radial movement. During machining, the support integrates with the station to create a localized, rigid machining structure that isolates vibrations. This dynamic reconfiguration resolves the contradiction between high-power machining and vibration-induced precision loss.
2Ease of operation
If the piece is fixed to the table during machining, then ease of operation is improved, but vibrations propagate to other stations
Solution Approach 1:
The support is segmented to provide separate integration interfaces: one with the table for easy radial transport, and another with the station for stable machining. This segmentation maintains ease of operation during transport while confining vibrations during machining, as the support becomes part of the stationary station structure rather than the rotating table.
Solution Approach 2:
The support acts as an intermediary element between the table and the station. It facilitates easy radial movement when integrated with the table, then mediates the transition to station integration for machining. This intermediary role allows the system to enjoy the ease of operation from table integration during transport while achieving vibration isolation through station integration during machining.
3Manufacturing precision
If the support is alternately fixed to table or station, then vibration propagation is reduced, but device complexity increases
Solution Approach 1:
The support is designed with multi-functionality, serving dual purposes: radial transport when integrated with the table and vibration-isolated machining when integrated with the station. This universal design allows a single component to perform multiple functions, reducing the need for separate specialized components and thereby limiting device complexity while achieving vibration confinement.
Solution Approach 2:
The dynamic reconfiguration of the support's integration state provides a simple mechanism for vibration confinement. By making the support an integral part of whichever structure it is currently associated with (table or station), the system dynamically adapts to the operational phase without requiring complex additional mechanisms. This dynamic approach achieves vibration confinement through a relatively simple design.
Data Source
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AI summary
An operation method is described for a numerical control tooling machine (MC) comprising a piece-carrying table (10) rotatable about a - in use - vertical axis (Y1) and N machining stations (14), N ≥ 2, arranged around the table, with the steps of - rotating the table to bring a piece (42) in front of a station, - disconnecting the piece from the table, - transferring the piece from the table to the station, - fixing the piece to the station, - processing the piece at the station, - disconnecting the piece from the station, - transferring the piece from the station to the table, - fixing the piece to the table, - rotating the table to bring the piece in front of a different station or unloading the piece from the table.