High-precision assembling jig for I-beam

By using I-beams to assemble the jig with high precision, and employing positioning components and hydraulic jacks to achieve precise alignment and gap adjustment between the web and flange plates, the problems of long time, low precision, and poor stability in the vertical assembly method are solved, thus improving the efficiency and safety of steel bridge manufacturing.

CN224508828UActive Publication Date: 2026-07-17CHINA RAILWAY SHANQIAO GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY SHANQIAO GRP CO LTD
Filing Date
2025-07-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the existing technology, the vertical assembly method in the manufacturing of steel bridge I-shaped members has the following drawbacks: long time occupied by overhead crane, large consumption of manpower and material resources, low precision, low efficiency, poor stability, high risk, and cannot meet the high precision requirements of the perpendicularity and gap size between the web plate and the flange plate.

Method used

The high-precision assembly jig using I-shaped rods includes a horizontal placement module and a jacking module. Through components such as positioning components, crossbar components, and hydraulic jacks, precise alignment and gap adjustment of the web and flange are achieved, ensuring welding accuracy.

Benefits of technology

It improves the accuracy and efficiency of I-beam assembly, reduces manpower and material consumption, enhances assembly stability and safety, and meets the high-precision requirements of modern steel bridge manufacturing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-precision assembling jig of I-shaped bar, include: horizontal placement module and push module, horizontal placement module is provided with multiple sets, push module also is provided with multiple sets, push module distributes at the both sides of horizontal placement module, horizontal placement module includes the rack, install the positioning assembly for placing the web on the rack, still install a pair of crossbar assembly on the rack, and a pair of crossbar assembly distributes at the both sides of positioning assembly, push module sets up at the both sides of horizontal placement module, is used for promoting the web or flange plate movement to make the web end portion and flange plate flush, the utility model discloses rational in structure, the clearance between flange plate and web is adjusted conveniently, and also convenient flange plate and web end portion alignment, is favorable to carrying out the welding, can better satisfy the use demand of I-shaped bar assembly.
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Claims

1. A high-precision assembly jig for I-shaped rods, characterized in that, include: The horizontally placed module (1) and the pushing module (2) are provided in multiple sets. The pushing module (2) is also provided in multiple sets. The pushing module (2) is distributed on both sides of the horizontally placed module (1). The horizontal placement module (1) includes a placement frame (11), on which a positioning component for placing the web plate (3) is installed. A pair of crossbar components are also installed on the placement frame (11), and the pair of crossbar components are distributed on both sides of the positioning component. The push module (2) is set on both sides of the horizontally placed module and is used to push the web plate (3) or the flange plate (31) to move so that the end of the web plate (3) is flush with the flange plate (31).

2. The high-precision assembling jig frame of I-beam according to claim 1, characterized in that: The positioning assembly includes a positioning seat (12) mounted on a placement frame (11), a placement brace (15) is also mounted on the positioning seat (12), a plurality of positioning teeth plates (121) are detachably mounted on the positioning seat (12), and a plurality of reinforcing ribs (123) are also provided on the positioning seat (12).

3. The high-precision assembling jig frame of I-beam according to claim 2, characterized in that: The positioning tooth plate (121) has multiple sets of positioning holes (122) distributed on it. The positioning holes (122) are strip-shaped holes. The positioning tooth plate (121) is detachably connected to the positioning seat (12) by bolts.

4. The high-precision assembling jig frame of I-beam according to claim 3, characterized in that: The crossbar assembly includes a transverse stop (13) mounted on a placement frame (11). Three sets of transverse screws (131) are threaded onto the transverse stop (13). A positioning block (132) is movably mounted on one end of the transverse screw (131) near the I-shaped member through a universal joint. An adjusting head (133) is fixed to the other end of the transverse screw (131). An adjusting hole (134) is provided on the adjusting head (133).

5. The high-precision assembly jig for I-shaped rods according to claim 4, characterized in that: An adjusting shim (16) is also installed on the placement rack (11) by bolts.

6. The high-precision assembling jig frame of I-beam according to claim 5, characterized in that: The jacking module (2) includes a jacking frame (21), on which a hydraulic jack (22) is installed. A jacking pick (23) is fixed to the telescopic end of the hydraulic jack (22), and a jacking brace (24) is also installed on the jacking frame (21).

7. The high-precision assembly jig for an I-beam according to claim 6, wherein: The placement frame (11) and the pusher frame (21) are both welded together from H-shaped steel columns and sleeper beams, with a pad (14) provided at the lower end of the H-shaped steel column.

8. The high-precision assembling jig frame of I-beam according to claim 7, characterized in that: The bottom of the push-up brace (24) and the placement brace (15) are also provided with pads (14), and the pads (14) are fixedly connected to the pre-embedded anchors on the ground by anchor bolts.

9. The high-precision assembly jig for an I-beam according to claim 8, wherein: The I-shaped member includes a web (3) in the middle position and flanges (31) on both sides.