Numerical Control Cutting Technology of Intersecting Lines of Steel Tube Sections of Steel Tube Arch Bridge

A steel pipe arch bridge and intersecting line technology, which is applied in manufacturing tools, metal processing equipment, welding equipment, etc., can solve the problems of uneven cutting surface, low cutting precision of pipe section processing, and uneven curve transition, so as to reduce the number of steel plates. And the use of welding consumables, the production process is clear, and the curve transition is smooth.

CN102886588BActive Publication Date: 2015-10-07中铁宝桥(宝鸡)路桥建设有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-10-07

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Abstract

The invention relates to a numerical control cutting process of a steel tube arch bridge pipe joint steel plate intersecting line. The numerical control cutting process comprises a numerical control flame cutting machine and comprises the following steps that (1) a curve graph of the steel tube arch bridge pipe joint steel plate intersecting line is drawn through a geometric method and led into the numerical control flame cutting machine; (2) an angle turning device is installed at the numerical control flame cutting machine, and steering cutting of the numerical control flame cutting machine in four directions can be realized through the angle turning device; and (3) curve cutting of a required process groove containing welding is carried out on a steel plate so as to obtain parts which meet a requirement on an arch rib abutting joint curve. The numerical control cutting process has the advantages that firstly, the steel plate is formed by adopting numerical control cutting for one time, so that a production organization is smoother; secondly, raw materials are saved; thirdly, operating time that a welder carries out the welding is reduced; fourthly, a welded joint is uniform and attractive in appearance, fifthly, an integrated one-time cutting process is adopted, a working procedure is less, a cutting surface and a line are smooth and continuous, and quality is high, sixthly, the quality of a cut curve and a flame cutting surface are both improved, seventhly, the operating time that the welder carries out the welding is reduced, eighthly, production efficiency is high, and ninthly, working efficiency is improved.
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Description

technical field

[0001] The invention belongs to the manufacture of bridge engineering steel structures, relates to a numerical control cutting process method for steel plates in the manufacturing process of arch rib pipe joints of steel pipe arch bridges, and belongs to the field of numerical control cutting. Background technique

[0002] There are two commonly used methods for making the arch rib curve of steel pipe arch bridges: one is to make the straight pipe joints butt to the required length, and then deform it through hot simmering to meet the curve requirements. In the production, special equipment is required to use infrared ceramic electric heating technology The other is to divide the pipe joint into about two meters according to the design requirements and the corresponding process formulated by the manufacturing unit for steel plate blanking, circle making, cutting intersecting lines, assembly and other processes, so as to realize the requirements of the arch rib...

Examples

Embodiment 1

[0009] Embodiment 1: with reference to attached figure 1 and 2 . This process is a flame cutting method (a numerical control cutting method of intersecting line of steel pipe arch bridge tube section steel plate), including CNC flame cutting machine, that is, in WD-105 CNC flame cutting machine, (1) drawing steel pipe arch bridge by geometric method The curve diagram of the intersecting line of the pipe section steel plate is imported into the CNC flame cutting machine. (2) The CNC flame cutting machine is equipped with a corner device ( figure 2 Middle 2-steering device), this corner device can enable the CNC flame cutting machine to realize the turning and cutting in four directions, (3) carry out the curve cutting of the steel plate including the process groove required for welding, and then get the butt curve that can meet the requirements of the arch rib parts required.

[0010] 1. Determine method: Using the WD-105 CNC flame cutting machine, the curve diagram of th...