Vertical Lathe Imbalance Correction via Movable Alignment Weights
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Solution Overview
Problem
Conventional vertical lathes face challenges in automatically and accurately correcting imbalance during cutting processes on unbalanced eccentric workpieces, particularly due to complex measurement and calculation requirements and constraints on working area when using adjustment weights.
Innovation Solution
An alignment system for vertical lathes that includes movable alignment weights along the outer periphery of a circular turn table, a movement mechanism to position these weights, and a control unit to calculate and set their positions for correcting imbalance, ensuring symmetrical arrangement relative to the workpiece's center of gravity and the turn table's center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods are used to correct imbalance by putting adjustment weights on the table, then imbalance correction is achieved, but the working area is constrained and the process becomes complicated
Solution Approach 1:
The alignment mechanism is divided into multiple independent alignment weights (first alignment weight and second alignment weight) that can be independently positioned along the outer periphery of the turn table. This segmentation allows flexible distribution of corrective mass without constraining the working area, as each weight can be placed at optimally calculated positions to correct imbalance while maintaining adequate workspace.
2Reliability
If conventional measurement and calculation methods are used for imbalance correction, then some correction is achieved, but automatic and accurate correction is incapable
Solution Approach 1:
The control unit receives feedback information about the workpiece characteristics (center of gravity position, distance, phase angle) and automatically calculates the optimal positions for alignment weights. This closed-loop feedback system enables automatic and accurate imbalance correction without manual measurement and calculation, resolving the contradiction between correction accuracy and automation extent.
Solution Approach 2:
The invention replaces manual mechanical measurement and calculation methods with an automated control system that uses sensors and computational algorithms to determine alignment weight positions. This substitution of mechanical operations with automated control enables accurate and automatic imbalance correction, eliminating the limitations of conventional manual methods.
3Reliability
If adjustment weights are placed on the turn table for imbalance correction, then imbalance is corrected, but device complexity increases and angular misalignment cannot be handled
Solution Approach 1:
The alignment weights serve multiple functions: they correct imbalance by positioning mass at calculated locations, and they simultaneously handle angular misalignment issues. The movement mechanism provides universal positioning capability along the outer periphery, allowing the same mechanism to address both radial and angular alignment requirements without increasing device complexity.
Solution Approach 2:
The control unit acts as an intermediary that simplifies the alignment process by automatically calculating optimal weight positions based on workpiece characteristics. This intermediary computational layer eliminates the need for complex manual calculations and multiple adjustment steps, reducing overall device complexity while maintaining high correction capability.
Data Source
AI summary
Disclosed is an alignment system for a vertical lathe, the lathe configured to perform a cutting process on a workpiece (W) mounted on a circular turn table (3) by rotating the workpiece (W), and the alignment system configured to, when the lathe performs the cutting process on an unbalanced eccentric workpiece, perform a center alignment operation for correcting imbalance. The alignment system includes an alignment mechanism which includes: multiple alignment weights (13) provided movable along an outer periphery (3a) of the circular turn table (3); and a movement mechanism (15) configured to move the alignment weights along the outer periphery (3a) of the turn table (3). The alignment system further includes a control unit (7) configured to calculate setting positions for the alignment weights (13), and to set the alignment weights (13) at the calculated setting positions using the movement mechanism (15), in order to correct the imbalance.