Steel belt hobbing beveling machine and steel belt hobbing beveling process

Abstract

The invention provides a steel belt hobbing beveling machine which comprises a machine base and two sets of hobbing mechanisms installed on the machine base and arranged in a bilateral symmetry mode in the width direction of a steel belt. Each group of hobbing mechanism comprises a main shaft which extends up and down along the thickness direction of the steel belt, a bearing sleeve which is rotatably mounted on the periphery of the main shaft through a bearing, and scissors and a guide carrier roller which are fixed on the periphery of the bearing sleeve, the scissors and the guide carrier roller are disc-shaped and are arranged up and down, a guide part is arranged at the outer edge of the guide carrier roller, and the guide part is fixed on the bearing sleeve. The guide part obliquely extends in the mode that the closer the guide part is to the scissors, the more inward the guide part is, and a rolling-cutting area for containing the edge of the steel belt is formed between the guide part and the scissors. By means of the device, the edge of the steel belt can be continuously rolled and cut, chamfered edges of the edge of the steel belt can be continuously machined, the rolling cutting speed can meet the requirement for the high-frequency welding speed, therefore, the high-frequency welding technology can be used for the extremely-thick-wall steel pipe and the corner welding square pipe, the quality and efficiency of welding seams are improved, and product development is facilitated.

Description

technical field [0001] The invention relates to the field of production of high-frequency welded pipes and cold-formed rectangular pipes, in particular to a steel strip rolling and beveling machine and a steel strip rolling and beveling process performed by using the steel strip rolling and beveling machine. Background technique [0002] When the high-frequency welded pipe production line and the cold-formed rectangular pipe production line produce extremely thick steel pipes or cold-formed high-frequency welded products with special cross-sections, it is necessary to perform continuous and precise chamfering at a certain angle on the two sides of the steel strip before forming and welding, so as to Guarantee the welding quality of the product. At present, there are only planing and milling processes in the existing technology; however, because the thickness of the steel strip is large and it is not easy to weld, it is necessary to chamfer; and the amount of feed and process...

AI Technical Summary

Problems solved by technology

At present, there are only planing and milling processes in the existing technology; however, because the thickness of the steel strip is large and it is not easy to weld, it is necessary to chamfer; and the amount of feed and processing speed of the planing and milling processes are far from meeting the needs of steel strips. Requirements with chamfer

In addition, the fastest speed of planing and milling process is 2-7 m / min, while the high-frequency welding speed is generally 15 m / min, so the speed of planing and milling process cannot meet the requirements of high-frequency welding speed , this speed limitation also makes it impossible to use high-frequency welding process for extremely thick-walled steel pipes and corner welded square pipes, thus restricting the innovative development in this field

In addition, some cutting equipment in the prior art can only achieve a 90° angle between the shear end surface and the metal plate surface when performing rolling cutting on the metal plate, and cannot meet the requirements for the shear angle when the steel strip is chamfered.

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