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Railway sidewalk steel cross beam production line and production method

A technology for steel beams and sidewalks, applied in the field of railway sidewalk steel beam production lines, can solve problems such as difficult quality assurance and low production efficiency, improve welding speed and welding position accuracy, improve product quality and production efficiency, and improve welding efficiency Effect

Active Publication Date: 2022-04-01
CHINA RAILWAY NO 2 ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a railway steel beam production line in view of the problem that the quality is difficult to guarantee and the production efficiency is low in the production of steel beams in the prior art

Method used

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  • Railway sidewalk steel cross beam production line and production method
  • Railway sidewalk steel cross beam production line and production method
  • Railway sidewalk steel cross beam production line and production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A railway sidewalk steel beam production line, including laser cutting device, bending device, welding device, shot blasting derusting device, galvanizing device, passivation device and closing device; the railway sidewalk steel beam structure is as follows figure 1 As shown, it includes a bent bottom plate 11, a support plate 12, a top plate 13, and four cylindrical head welding nails 14 and an angle steel 15 welded on the top plate.

[0052] The laser cutting device is used to cut the contour and opening of the raw steel plate according to preset parameters to obtain a bottom plate, a support plate and a top plate; the bending device includes a bending mold, and the bottom plate Internal stamping;

[0053] The welding device includes a welding robot workstation, a stud welding machine and a secondary welder; the welding robot workstation is used for welding the bent bottom plate, the support plate, and the top plate; the stud welding machine uses It is used for weldi...

Embodiment 2

[0074] A method for producing railway sidewalk steel beams, the process flow chart is as Figure 10 Shown, preferably adopt the production line among the embodiment 1 to produce, comprise the following steps,

[0075] S1 steel plate cutting and opening, using a laser cutting machine to cut and shape the raw steel plate according to preset parameters to obtain a bottom plate, a support plate and a top plate; bending and forming the bottom plate to obtain a bent bottom plate;

[0076] The steel plate cutting and hole opening process is carried out with a CNC laser cutting machine. The technicians first draw the CAD drawings of the three steel plates of the steel beam, import them into the special program of the CNC laser cutting machine to program the cutting program, and use the cutting program to import the CNC cutting machine to cut the steel plate. Guarantee steel plate cutting speed and hole opening accuracy. Using laser cutting, the cutting speed is about 6-8 times that o...

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Abstract

The invention relates to the technical field of bridge engineering, in particular to a railway sidewalk steel cross beam production line and a production method. The production line comprises a laser cutting device, a bending device, a welding device, a shot blasting device, a zinc impregnation device, a passivation device and a sealing device. The laser cutting device is used for cutting the outline and the hole of the raw material steel plate according to preset parameters; the bending device comprises a bending die, and the bottom plate is formed in the bending die in a punching mode. The welding device comprises a welding robot workstation, a stud welding machine and a carbon dioxide protection welding machine; the welding robot workstation is used for welding a steel plate; the stud welding machine is used for welding the cylindrical head welding stud and the top plate; the carbon dioxide arc welding is used for welding angle steel and a top plate. The cutting precision and efficiency are guaranteed through laser contour cutting and trepanning, different welding tools are adopted according to different welding characteristics, a positioning device and a welding tool are used in cooperation, and the welding positioning accuracy and quality are guaranteed.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a steel beam production line and a production method for railway sidewalks. Background technique [0002] The sidewalk steel beam is a steel structure product of the railway T-beam auxiliary bridge deck, which is mainly used to connect with the pre-embedded T-shaped steel of the railway T-beam side beam. The upper end of the steel beam is placed with a U-shaped groove and the cover plate of the cable bridge, and the angle steel of the steel beam is connected with the angle steel of the column to form a sidewalk railing system attached to the bridge deck for people to walk on. It is widely used on railways. [0003] At present, the anti-corrosion process principle of domestic railway steel beams is "multiple alloy co-infiltration + passivation treatment + sealing treatment". Processing → closed processing. Among them, flame cutting is often used in the steel beam cut...

Claims

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Application Information

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IPC IPC(8): B23P23/00B23P15/00
Inventor 方增肖建国杨佳朱素芬
Owner CHINA RAILWAY NO 2 ENG GRP CO LTD