Machine Tool Spindle Balance Observation Without Field Balancers
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Solution Overview
Problem
The existing methods for observing the balance state of a machine tool's spindle, such as using a field balancer, are cumbersome and lack stability in accuracy due to the dependency on the attachment method and position, making it difficult to consistently and accurately assess the balance state.
Innovation Solution
An observation device and method that acquires and displays the angles of rotation of the spindle and movement information of a connected moving body perpendicular to the spindle, allowing for the observation of the balance state without relying on a field balancer, by utilizing existing machine tool and control device components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a field balancer is mounted on the machine tool to measure the balance state of the main shaft, then the balance state can be measured, but the operation requires time and effort and the accuracy depends on the attachment method and position
Solution Approach 1:
The machine tool uses its own built-in detector and control device to measure the balance state of its main shaft, eliminating the need for external field balancer equipment. The system performs self-diagnosis by utilizing existing components (detector, control device, display unit) already integrated into the machine tool structure
Solution Approach 2:
The detector and control device serve multiple functions: they control the movement body, detect its position, and simultaneously measure the balance state of the main shaft by detecting vibrations during rotation. This multi-functional approach eliminates the need for dedicated balance measurement equipment
2Measurement precision
If a field balancer is mounted on the machine tool to measure the balance state of the main shaft, then the balance state can be measured, but the accuracy depends on the attachment method and position making consistent observation difficult
Solution Approach 1:
The machine tool uses its own built-in detector and control device to measure the balance state of its main shaft, eliminating the need for external field balancer equipment. The system performs self-diagnosis by utilizing existing components (detector, control device, display unit) already integrated into the machine tool structure
Solution Approach 2:
The detector detects vibrations of the moving body during rotation, and the control device processes this feedback information to determine the balance state. The system continuously monitors and adjusts based on detected vibrations, providing consistent and reliable measurement independent of external attachment conditions
Data Source
AI summary
An observation device observes a balance state of a main spindle of a machine tool including the main spindle and a moving body to which the main spindle is rotatably fixed and which moves in a direction orthogonal to the axial direction of the main spindle. The observation device includes a first acquisition unit for acquiring rotation angles of the main spindle during rotation; a second acquisition unit for acquiring movement information indicating a movement state of the moving body when the main spindle is rotating; and an output generation unit for displaying, on a display unit, each of the rotation angles of the main spindle and the movement information in association with each other.