Numerical control

The numerical controller addresses the challenge of avoiding interference between machining units in machine tools by monitoring delay times and adjusting unit speeds or operations, enabling simultaneous machining of multiple workpieces with individual tool corrections.

DE102017011602B4Active Publication Date: 2025-04-30FANUC LTD
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Patent Information

Application Number
DE102017011602
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2016-12-21
Filing Date
2017-12-14
Publication Date
2025-04-30
Estimated Expiration
2037-12-14

AI Technical Summary

Technical Problem

Existing numerical controllers for machine tools with multiple machining units face challenges in avoiding interference between units during simultaneous machining of multiple workpieces, especially when individual tool corrections are needed and synchronous control is not feasible.

Method used

A numerical controller that monitors the delay time between machining units and determines whether it exceeds a predetermined time, allowing for independent control of the units to prevent interference. This controller includes a monitoring unit, a determination unit, and a control unit that adjust the speed or stop one of the machining units as necessary to avoid collisions.

Benefits of technology

The proposed solution enables the avoidance of interference between machining units without requiring synchronous control, allowing for simultaneous machining of multiple workpieces while enabling individual tool corrections and utilizing a workpiece coordinate system independently.

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Abstract

Numerical control (100) for simultaneously performing the same machining operation on at least two workpieces (W, W) with a machine tool (200) comprising at least two machining units (310, 320), wherein the numerical control (100) comprises: a monitoring unit (114) that monitors a delay time between the two processing units (310, 320) after the simultaneous start of operation of the two processing units (310, 320) in the same direction without synchronization with each other; a unit of determination (115) that determines whether the delay time exceeds a predetermined time or not; and a control unit (112) that stops one of the two processing units (310, 320) or changes the speed of one of the two processing units if the delay time exceeds the specified time.
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Citation Information

Patent Citations

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    DE102009048252A1

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    DE68924580T2

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