一种基于自动化的正交异性板加工平台

By integrating an automated orthotropic plate processing platform with a welding anti-deformation jig, robotic arm, and laser ultrasonic testing instrument, the problems of poor welding quality and difficulty in eliminating residual stress are solved, achieving efficient and stable welding and testing, which is suitable for the construction of bridges with complex structures.

CN224508847UActive Publication Date: 2026-07-17CHINA RAILWAY SHANQIAO GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY SHANQIAO GRP CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing orthotropic plate welding process suffers from poor welding quality, low production efficiency, complex post-weld treatment and inspection, and difficulty in eliminating residual welding stress, resulting in severe fatigue cracking of bridge deck welded joints.

Method used

An automated orthotropic plate processing platform is adopted, including a welding anti-deformation jig, a gear and rack linear slide, a moving gantry, a lead screw linear slide, and a robotic arm. It integrates a welding torch, a vibratory hammer, and a laser ultrasonic detector to achieve automated operation of welding, weld post-processing, and inspection.

Benefits of technology

It improves welding quality stability, reduces the impact of human factors, eliminates welding residual stress, enables non-destructive testing, improves production efficiency and product reliability, and is suitable for high-temperature and toxic harsh environments in welding chambers.

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Abstract

本实用新型涉及一种基于自动化的正交异性板加工平台,属于正交异性板焊接技术领域,包括焊接反变形胎架,用于固定正交异性板,并设有弧度以匹配顶底板单元的预期变形,两组齿轮齿条直线滑台通过两个基台对称设于焊接反变形胎架的两侧,移动龙门架包括两个立柱和横梁,且横梁固定在两个立柱的顶端。本实用新型通过本技术方案的综合应用,实现了正交异性板焊接、焊缝后处理和焊缝检测自动化控制为一体的加工工序,相比同行业技术领先,且构思独特、巧妙,具有巨大应用价值和市场前景。同时在正交异性板的生产过程中,不仅能够实现高效、高质量的生产,还能大大提升产品的可靠性和安全性,为桥梁建设和维护提供了强有力的技术支持。
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Claims

1. An automated-based orthotropic plate machining platform, characterized in that, include: Welded anti-deformation jig (1) is used to fix orthotropic plates and is provided with curvature to match the expected deformation of the top and bottom plate units; Two sets of gear rack linear slides (2) are symmetrically arranged on both sides of the welded anti-deformation jig (1) via two bases; The movable gantry (3) includes two columns (31) and a crossbeam (32), and the crossbeam (32) is fixed to the top of the two columns (31), and the bottom of the two columns (31) is bolted to the top of the two sets of gear rack linear slides (2); Two sets of lead screw linear slides (4) are horizontally and symmetrically installed on both sides of the crossbeam (32) of the movable gantry frame (3); Four robotic arms (5) are fixed to two sets of linear slides (4) with symmetrical bolts in pairs, which are used for the fixed connection of two welding guns (6), vibrating hammer (7) and laser ultrasonic detector (8); The welding torch (6) moves along the weld to perform welding, the vibrating hammer (7) impacts the weld to eliminate welding stress, and the laser ultrasonic detector (8) emits a laser and detects reflected ultrasonic waves to evaluate weld defects, thus completing the integrated automated operation of welding, weld post-processing and weld inspection.

2. The automated orthotropic plate processing platform as described in claim 1, characterized in that, The gear rack linear slide (2) includes: Two guide rails (21) are fixed horizontally and symmetrically to the top of the base; The base (23) is slidably connected to two guide rails (21) simultaneously by multiple sliders (22), and the bottom bolt of the column (31) is fixed to the top of the base (23); Servo motor 1 (24) is fixed to the top side of the base 1 (23), and the output shaft of servo motor 1 (24) extends downward and is fixedly fitted with gear (25); The rack (26) is fixed to the top of the base and located between the two guide rails (21), and meshes with the gear (25).

3. An automated-based orthotropic plate processing platform as claimed in claim 1, wherein, The lead screw linear slide (4) includes: Two guide rails (41) are fixed symmetrically to one side of the crossbeam (32); The two bases (43) are slidably connected to the two guide rails (41) simultaneously by multiple sliders (42) for the fixed installation of the robotic arm (5); Two servo motors (44) are symmetrically fixedly installed on one side of the crossbeam (32); Two lead screws (45) are rotatably connected to one side of the crossbeam (32) through mounting blocks and bearings, and one end of each screw is fixedly connected to the output shaft of the corresponding servo motor (44). Two lead screw nuts (46) are fixed to the bottom of the two bases (43) respectively, and threaded onto the corresponding lead screws (45).

4. An automated-based orthotropic plate processing platform as claimed in claim 3, wherein, The robotic arm (5) includes: The base (51) is bolted to the outer side of the second platform (43); The waist (52) is mounted on the base (51); The upper arm (53) is installed on one side of the waist (52); The forearm (54) is mounted on the end of the upper arm (53) away from the waist (52); The wrist (55) is mounted on the forearm (54) at the end away from the upper arm (53); A connecting flange (56) is fixed to one end of the wrist (55), and the welding torch (6), vibratory hammer (7) and laser ultrasonic detector (8) are all connected to the corresponding wrist (55) flange through the connecting flange (56); The waist (52) enables the robotic arm (5) to rotate in the horizontal plane, the upper arm (53) realizes the lifting motion, the forearm (54) realizes the fine motion, and the wrist (55) provides the rotation and flipping motion.

5. An automated-based orthotropic plate processing platform as claimed in claim 1, wherein, The welding torch (6) uses flux-cored welding wire and is equipped with a vision sensor to identify the weld position.

6. An automated-based orthotropic plate processing platform as claimed in claim 1, wherein, The vibratory hammer (7) has a circular hammer head that is perpendicular to the welding area.

7. An automated orthotropic plate machining platform as claimed in claim 1, wherein, The laser ultrasonic testing instrument (8) includes: The laser ultrasonic excitation module (81) uses an array line light source to excite a pulsed laser beam to generate ultrasonic waves; The laser ultrasonic detection module (82) is arranged parallel to the side of the laser ultrasonic excitation module (81) and perpendicular to the weld plane, and is used to detect ultrasonic signals.

8. An automated-based orthotropic plate processing platform according to any one of claims 1-7, wherein, Also includes: The teach pendant (9) and the central control system (10) are used to automatically control the coordinated movement of the gear rack linear slide (2), the moving gantry (3), the lead screw linear slide (4) and the robotic arm (5) to perform welding, weld post-processing and weld inspection procedures in sequence.