Integrated milling structure and method for working edge and rail top surface of turnout switch rail

Abstract

The invention discloses an integrated milling structure and method for a working edge and a rail top surface of a turnout switch rail. The structure comprises a milling cutter body, wherein the milling cutter body comprises a first cutter body part and a second cutter body part; and when the milling cutter body rotates to carry out cutting processing, multiple milling cutter blades form a continuous cutting curve in smooth transition from the inner edge of the second cutter body part to the outer edge of the first cutter body part. According to the structure provided by the invention, a rail piece working edge, a rail top slope line style and structure characteristics are combined, a cutter structure and a process route are re-designed, and an integrated milling cutter is designed in orderto avoid the occurrence of the phenomenon that a crossing edge of an old-fashioned rail top slope milling cutter and a working edge milling cutter appears at a circular arc position of a rail head working edge R13, so that the wheel-rail relation is conveniently improved, and the turnout quality is improved. The surface quality of a circular arc on which the rail piece working edge and the rail top slope are tangent can be effectively improved and totally conforms to a theoretical line type, the manpower resource of manual polishing is saved, the economic benefit is improved, and the integrated milling structure and method have universal adaptability on processing a high-speed turnout switch rail.

Description

technical field [0001] The invention relates to the technical field of railway equipment, in particular to an integrated milling structure and method for the working edge and rail top surface of a turnout point rail. Background technique [0002] Nowadays, turnout manufacturers use the rail top slope milling cutter and the working side milling cutter to process independently when milling the working side of the turnout rail and the longitudinal slope of the rail top. After processing by independent tools, there will be cross edges at the arc position of the rail top, which is above the gauge line, which will affect the wheel-rail relationship, the comfort of the train crossing and the service life of the turnout. Contents of the invention [0003] The invention provides an integrated milling structure and method for the working edge and rail top surface of a turnout point rail. According to the process route, the integrated milling of the working side of the rail and the ...

AI Technical Summary

Problems solved by technology

After processing with an independent tool, an intersecting edge will be generated at the arc position of the rail top. This position is above the gauge line, which will affect the relationship between the wheel and the rail, and affect the comfort of the train crossing and the service life of the turnout.

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