Multi-laser module with independent focusing function and additive device

By combining a multi-stage fine-tuning component consisting of a coarse-tuning mechanism, a threaded fine-tuning mechanism, and a sensor-based fine-tuning mechanism, along with a wedge-shaped locking block component, the problem of difficult focus position adjustment in multi-laser devices is solved, achieving a high-precision, stable, and convenient independent focusing effect.

CN122401893APending Publication Date: 2026-07-17SOUTHWEST TECHNICAL ENGINEERING RESEARCH INSTITUTE OF CHINA SOUTH IND GROUP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHWEST TECHNICAL ENGINEERING RESEARCH INSTITUTE OF CHINA SOUTH IND GROUP
Filing Date
2026-06-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing multi-laser devices, it is difficult for the focal positions of each laser beam to be simultaneously at the optimal working plane. The focusing process is cumbersome and affects the continuous operation of the equipment. After focusing, it is difficult to quickly return to the reference zero point position, and it is impossible to achieve truly independent fine focusing.

Method used

A multi-stage fine-tuning assembly consisting of a coarse-tuning mechanism, a small-stroke spiral fine-tuning mechanism, and a sensor-based fine-tuning mechanism, combined with a wedge-shaped locking block assembly and a locking slot, enables independent focusing of each laser module. Errors are compensated by sensor feedback to ensure the accuracy and consistency of the focus position.

Benefits of technology

This allows each laser module to independently reach its optimal focal position during additive manufacturing, improving the repeatability and consistency of focusing, simplifying the focusing process, and enhancing operational stability and convenience.

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Abstract

本发明公开了一种具有独立调焦功能的多激光模组及增材装置,涉及3D打印技术领域,包括:增材模头,环形开设在所述增材模头的激光安装槽,每个所述激光安装槽内设有卡槽;以及内设于每个所述激光安装槽的激光模组,每个所述激光模组包括导轨框,自上而下设于所述导轨框一侧的激光器、聚焦镜组和调焦滑座,以及依次连接的啮合粗调机构、螺纹精调机构和传感微调机构;还包括楔形卡块组件。本发明通过设置的啮合粗调机构、螺纹精调机构以及传感微调机构,使得每个激光模组在增材制造过程中都能独立达到最佳焦点位置,而通过楔形卡块组件与卡槽的巧妙卡接,又使激光模组在工作状态与增材模头自锁紧,在复位状态自动解锁,提升工作稳定性。
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