Welding device for production of anti-blocking slag discharging gate valve and welding method of welding device

By integrating a welding device with floating grippers, a monocular vision camera, and sensors, the problems of complex structure and uneven heat capacity of the anti-clogging slag discharge gate valve were solved, achieving precise alignment of the welding path, control of penetration depth, and compensation for thermal deformation, thus improving welding quality and precision.

CN120940774AActive Publication Date: 2025-11-14JIANGSU JIANGYUAN MASCH CO LTD
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Patent Information

Application Number
CN202511470599.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-15
Publication Date
2025-11-14
Estimated Expiration
2045-10-15

AI Technical Summary

Technical Problem

Traditional welding methods are ill-suited to the complex structure of anti-clogging slag discharge gate valves and the unstable welding quality caused by uneven heat capacity, including initial path deviation, energy control lag, and unpredictable thermal deformation.

Method used

Employing an integrated mechanical and sensing structure, including a floating gripper, a monocular vision camera, a contact temperature sensor, and an arc signal acquisition unit, it actively compensates for thermal deformation by generating a forward-looking thermal capacity coefficient sequence and a multi-dimensional response model, and adjusts the welding path and energy in real time.

Benefits of technology

It achieves precise alignment of the welding path, control of penetration depth, and suppression of thermal deformation, significantly improving the consistency of welding quality and dimensional accuracy.

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Abstract

The invention relates to a welding device and a welding method for production of an anti-blocking slag discharging gate valve, and belongs to the technical field of automatic welding, the welding device comprises a welding base, a valve body clamping table is arranged on the surface of the center of the welding base, and the valve body clamping table comprises floating clamping jaws which move towards each other or away from each other along parallel linear guide rails; a contact type temperature sensor is embedded in the inner side contact surface of the floating clamping jaw; the gantry type moving frame is installed above the welding base and comprises a cross beam moving in the first direction set by the welding base and a welding head sliding seat installed on the cross beam and moving in the second direction in the length direction of the cross beam. And the lifting electric cylinder is vertically mounted on the welding head sliding seat and is used for realizing lifting in the vertical direction. The welding torch is ensured to be accurately aligned with the center of a welding seam all the time.
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Citation Information

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