A kind of pressing forming process of steel formwork of steel-concrete bridge and its press machine

Abstract

The embodiment of the present invention discloses a press-forming process for steel formwork of steel-concrete bridges. The press-forming process includes the following steps: firstly cutting the sheet into a specified size, then using a press to form V-shaped grooves on both sides of the sheet, and then Use the V groove to press it into a Z-shaped material plate through a press, and then roll the Z-shaped material plate through a rolling mill, remove the rounded corners on the Z-shaped material plate to form a clear-cut material plate, and then weld it Reinforcing ribs and opening corresponding through holes, and finally spraying anti-rust paint on the holed material plate can complete the forming of the steel formwork of the steel-concrete bridge. The press includes an upper mold and a lower mold fixedly installed on the main body of the press A V-shaped pressing block for pressing a V-shaped groove is slidably connected to the side of the upper mold facing the lower mold through a tension spring, and the pressure of the pressed sheet and the pressure of the pressed sheet are controlled by the pre-pressed V-shaped groove. Controlling the size of the rounded corners can greatly reduce the difficulty of processing.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a press-forming process for steel formwork of a steel-concrete bridge and a press machine thereof. Background technique [0002] With the development of my country's economic construction and the growth of transportation, the expressway network system is constantly being improved, which also makes a large number of routes intersect, and a large number of over-the-line bridges with hub intercommunication appear. Bridges can be divided into steel bridges and steel bars according to material classification. Concrete bridges, wooden bridges, stone bridges, etc. Among them, steel bridges are mainly bridges that use steel as the main construction material. They have the characteristics of high strength, high rigidity, and fast construction speed, and are widely used in our country. [0003] In the process of building a steel bridge, a large amount of steel and steel formwork...

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Problems solved by technology

[0004] For this reason, the embodiment of the present invention provides a steel-concrete bridge steel formwork pressing molding process and its press machine, to solve the problem that the pressing of the sheet metal in the prior art uses a large press machine, which will increase the cost of purchasing the production line, and directly The pressing method cannot accurately control the rounded corners of the steel formwork, which leads to the problem that the joints of the steel bridge are prone to corrosion after construction, and the maintenance cost in the later period will be greatly increased.

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