Turning Tool Blade Edge Correction for Spindle Mounting Deviation
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Solution Overview
Problem
In NC-controlled machine tools, existing systems fail to automatically correct deviations in the blade edge position due to tool blade inclination and orientation angle when a turning tool is mounted on a tool main spindle, leading to inaccuracies in processing.
Innovation Solution
An automatic correction device and method that acquires the inclination amount of the tool clamp surface, tool shaft rotation phase angle, and protrusion amount of the blade edge, using arithmetic processing to calculate and correct deviations in the blade edge position, with additional correction for the turning angle of the tool main spindle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a turning tool is mounted on a tool main spindle with a predetermined tool orientation angle, then turning processing can be executed according to an NC control program, but the blade edge position deviates from the reference position due to inclination amount and protrusion amount
Solution Approach 1:
The system performs preliminary detection of the blade edge position using an infrared sensor before processing, and pre-calculates the correction amount based on detected inclination and protrusion amounts. This allows the NC device to compensate for position deviations in advance, ensuring accurate blade edge positioning during turning operations without requiring manual adjustment
Solution Approach 2:
The system implements a feedback mechanism where the infrared sensor continuously detects the blade edge position, and the NC device automatically adjusts the tool orientation angle based on the detected deviation from the reference position. This closed-loop control ensures that the blade edge maintains accurate positioning throughout the processing operation
2Productivity
If the tool orientation angle is set to a predetermined value for turning processing, then the processing can be executed as programmed, but the blade edge position cannot be automatically corrected for inclination and protrusion deviations
Solution Approach 1:
The system enables automatic self-correction of the blade edge position through the NC device, which autonomously detects position deviations using the infrared sensor and adjusts the tool orientation angle without requiring manual intervention. This maintains high processing efficiency while simultaneously ensuring accurate blade edge positioning
Solution Approach 2:
The system dynamically changes the tool orientation angle parameter based on detected blade edge position deviations. The NC device calculates the required angle adjustment to compensate for inclination and protrusion amounts, and automatically updates the orientation angle to maintain accurate blade edge positioning during processing
Data Source
AI summary
An NC device for correcting a blade edge position at a time of a turning tool being mounted on a tool main spindle in a machine tool, comprising: first acquisition part for acquiring an inclination amount of a clamp surface of the tool main spindle; second acquisition part for acquiring a tool shaft rotation phase angle; third acquisition part for acquiring a protrusion amount in which the blade edge is protruded from the clamp surface of the tool main spindle; and first correction arithmetic processing part for arithmetically processing a deviation amount of the position of the blade edge that is generated between a reference position and the shaft rotation phase angle obtained by the second acquisition part due to the inclination amount of the tool clamp surface obtained by the first acquisition part and the protrusion amount obtained by the third acquisition part.