Machining method of comb plate expansion device

Abstract

The invention discloses a machining method of a comb plate expansion device. The machining method comprises the following steps of preparing section steel, wherein the section steel comprises a top plate and rib plates perpendicularly and symmetrically distributed on the two sides of the center line of the bottom surface of the top plate in the length direction; and cutting the section steel into comb tooth shapes in the length direction, wherein the comb tooth shapes are located between the two rib plates to form comb plates with the rib plates. According to the machining method, firstly, a section steel mold is manufactured; secondly, the section steel with the cross section shaped like Pi is poured; and thirdly, a semi-automatic cutting machine cuts the section steel into the two ribbed comb plates with comb teeth and tooth grooves. the tooth groove part of one ribbed comb plate is converted into the comb tooth part of the other ribbed comb plate. Thus, steel at tooth groove cutting positions cannot be wasted, and the cost and resources are saved.

Description

Technical field [0001] The invention relates to the technical field of bridge expansion joints, in particular to a processing method of a comb plate expansion device. Background technique [0002] At present, as people's living standards are getting higher and higher, the economy is more and more developed, there are more and more vehicles, road traffic is becoming more and more congested, and the pressure on overpasses is increasing. A large number of overpasses are built, resulting in a large number of bridge expansions. It requires a large number of telescopic devices. At present, the commonly used telescopic device is a comb-shaped telescopic device, but the existing comb-tooth plate telescopic device is only formed by clamping two comb-tooth plates, and the connection with the beam body is not firm. Good, easy to fall off, and during the processing of the comb plate, the steel that is cut off to form the tooth grooves is directly discarded, resulting in waste of resources an...

AI Technical Summary

Problems solved by technology

[0002] At present, as people's living standards are getting higher and higher, the economy is more and more developed, there are more and more vehicles, road traffic is getting more and more congested, and the pressure on overpasses is increasing. The construction of a large number of overpasses has formed a large number of bridge expansion A large number of telescopic devices are needed, and the commonly used telescopic devices are comb-shaped telescopic devices, but the existing comb-tooth plate telescopic devices are only made of two comb-tooth plates, and the connection with the beam body is not firm. Good, easy to fall off, and in the process of comb tooth plate processing, the steel that is cut off from the part that forms the tooth groove is directly discarded, resulting in waste of resources and increase in cost

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