Sawing device and control method for horizontal single-slope seamless welded surface of rail

Abstract

The invention relates to a steel-rail lateral monoclinic seamless welding surface cutting device and a control method. The cutting device is characterized in that a band saw blade is taken as a cutting tool which can cut two lateral monoclinic sections with equal angles, and the cutting device is composed of a steel-rail pressing structure, a monoclinic band saw cutting structure, a cutting hydraulic system, a control circuit system and the like; the two cut steel rails are positioned and clamped through the steel-rail pressing structure, so that accurate angle and stability in cutting can be guaranteed; a horizontal gantry structure is adopted in the monoclinic band saw cutting structure so as to mainly perform lateral monoclinic angle welding plane cutting on the steel rails; the cutting hydraulic system drives feed movement in time of pressing and cutting; the control circuit system controls smooth implementation in the whole process of pressing and angle cutting. By the cutting device, two monoclinic welding sections can be welded together by one-step cutting, so that the cutting device has the advantages that cutting angle is accurate, cutting efficiency is high, rigidity is good, operation is stable, the band saw blade is long in service life, quality of section cutting is good, and the like.

Description

Technical field: [0001] The invention relates to a sawing device for a horizontal monoclinic seamless welded surface aimed at a rail seamless welding line, which belongs to the technical field of high-speed train seamless line rail welding, and is particularly suitable for being parallel to the vertical direction of the rail and forming an angle α with the transverse direction. The band saw sawing process of the single inclined section. Background technique: [0002] Rail joints are one of the weak links of railways. The geometric orientation of the welded surface of railway seamless rails not only has an important impact on the service life of line equipment, locomotives or trains, passenger comfort, and energy consumption, but also directly threatens the safety of railway traffic. . The inventor's patent application (application number: 200910206270.7) proposes a monoclinic welding surface A that is parallel to the vertical y and forms an angle α with the transverse x α ...

AI Technical Summary

Problems solved by technology

[0005] 3) The angle adjustment of the horizontal corner band sawing machine is generally manual, and the problems of artificial random errors and low repeatability must be solved;

[0006] 4) The existing band sawing machines are all tensioning the circular saw band on the two saw wheels of the saw frame, so that the saw frame forms an angle of 30° with the vertical feed direction, resulting in that the cutting edge of the band saw blade is not perpendicular to the cut surface

Therefore, it is necessary to make the guide device twist the upper sawing part of the saw band at a certain angle so that it is perpendicular to the cut surface, which will affect the service life of the band saw blade

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