A high-precision temperature control turntable device and a temperature control method thereof

By using an integrated concentric base structure and a multi-source cooling architecture, combined with dual closed-loop temperature control logic, the problems of thermal deformation and precision maintenance of the CNC rotary table are solved, achieving high-precision temperature control and stable operation of the rotary table.

CN122142816BActive Publication Date: 2026-07-24宁庆空天智能装备(南京)股份有限公司
View PDF 3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
宁庆空天智能装备(南京)股份有限公司
Filing Date
2026-05-06
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing CNC rotary tables, due to their split assembly structure, suffer from coaxiality errors and thermal expansion gaps in five-axis linkage machining. The cooling system cannot achieve uniform temperature control across the entire range, resulting in thermal deformation that affects machining accuracy and stability.

Method used

It adopts an integrated concentric base structure, combined with a three-level collaborative cooling architecture of water cooling, oil cooling and air cooling, and with dual closed-loop feedforward temperature control logic and thermal error compensation mechanism, to achieve uniform heat dissipation and precise control of the internal temperature of the turntable.

Benefits of technology

It effectively reduces the risk of asymmetric thermal deformation of the turntable, improves machining accuracy and operational stability, and ensures the high-precision temperature control requirements of the turntable under different working conditions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122142816B_ABST
    Figure CN122142816B_ABST
Patent Text Reader

Abstract

The application discloses a high-precision temperature control rotary table device and a temperature control method thereof, belongs to the technical field of numerical control machine tool functional components, and aims to solve the problems of uneven cooling, large internal temperature difference and poor rotation precision stability caused by thermal deformation of the existing rotary table. The application adopts an integrally-formed concentric base as a mounting reference, configures a three-stage collaborative cooling architecture composed of a double-layer motor water jacket water cooling circuit, a bearing oil cooling circuit and a double-layer annular air cooling circuit, and combines a global temperature acquisition, a main and auxiliary double-closed-loop water cooling control, a hierarchical air cooling linkage, a dynamic threshold anti-shake, a hierarchical fault tolerance and a thermal error compensation control logic, so that the rotary table temperature is effectively controlled, the rotation precision retention is improved, and the application can be widely applied to high-precision machining scenes of high-end five-axis numerical control machine tools.
Need to check novelty before this filing date? Find Prior Art