Numerical control rotary table real-time feedback control device based on multi-source data fusion

By using a real-time feedback control device that integrates multi-source data, the problems of incomplete data acquisition, high control delay, and low equipment reliability of CNC rotary tables have been solved, achieving high-precision, real-time response, and high-reliability control of CNC rotary tables.

CN121956809APending Publication Date: 2026-05-01SUZHOU FURUTA AUTOMATION TECH
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Patent Information

Application Number
CN202610294623.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-11
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing feedback control of CNC rotary tables suffers from several drawbacks: data acquisition dimensions are limited, failing to fully detect interference sources; reliance on software simulation and host computer processing leads to spatiotemporal asynchrony of multi-source data and high control latency; lack of dedicated hardware control architecture results in low dynamic tracking accuracy; and lack of integrated hardware support limits equipment reliability and lifespan.

Method used

The real-time feedback control device employs multi-source data fusion, including a multi-source data acquisition unit, a data fusion processing unit, an edge computing module, a hierarchical feedback control unit, and a dynamic error compensation unit. It achieves hardware-level data processing and real-time compensation through an FPGA preprocessing chip, an edge computing chip, and a three-ring nested motion control chip, and integrates a real-time fault diagnosis and lubrication and heat dissipation linkage mechanism.

Benefits of technology

It achieves millisecond-level real-time response, positioning error of less than ±0.5 arcseconds, dynamic tracking error of less than 0.3 arcseconds, high accuracy in equipment fault identification, and a 35% increase in service life, meeting the high precision and high reliability requirements of high-end CNC equipment.

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Abstract

The invention discloses a numerical control rotary table real-time feedback control device based on multi-source data fusion. The numerical control rotary table real-time feedback control device comprises a numerical control rotary table body, a multi-source data acquisition unit, a data fusion processing unit, an edge calculation module, a layered feedback control unit, a dynamic error compensation unit and a driving execution unit. The numerical control rotary table body adopts a cam roller gapless transmission structure; the multi-source data acquisition unit synchronously acquires position, temperature, vibration, torque and rotating speed full-dimensional data; the data fusion processing unit is used for realizing hardware-level data preprocessing; the edge calculation module is integrated with each unit onboard to realize local real-time calculation; the layered feedback control unit adopts a three-ring nested hardware control architecture; the dynamic error compensation unit is used for full-time dynamic compensation; all the units are electrically connected to form a full-hardware global closed-loop control system; the end-to-end response time of the device is less than or equal to 1ms, the positioning error is less than or equal to + / -0.5 arc second, the device is adaptive to various cam type numerical control rotary tables, and the localization of core parts of high-end numerical control equipment can be promoted.
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