Special-shaped ring piece rolling method and device

Abstract

The invention relates to the field of ring rolling machines, in particular to a special-shaped ring piece rolling method and device which can better maintain the shape of a special-shaped piece in therolling process and enable the special-shaped piece not to deform easily. According to the special-shaped ring piece rolling method, a conical roller with an annular groove is used for rolling a workpiece, movable positioning rollers are arranged at the left side and the right side of the conical roller to support the outer side face of the workpiece, and the positions of the conical roller and the positioning rollers are adjusted by detecting the change of the diameter of the workpiece. According to the special-shaped ring piece rolling method, the upper conical roller and the positioning rollers are included, the upper conical roller and the positioning rollers are arranged on a movable base, the positioning rollers are arranged at the two sides of the upper conical roller, and the upper conical roller is provided with the annular groove. The positioning rollers are arranged at the two sides of the upper conical roller and used for supporting the outer side circumferential face of the ring piece, then protruding parts above the ring piece are supported, and deformation of the protruding part is prevented.

Description

technical field [0001] The invention relates to the field of ring rolling machines, in particular to a method and device for rolling special-shaped rings. Background technique [0002] Ring rolling machine is a kind of equipment for processing ring workpieces by hot rolling. The ring rolling machine rolls the ring-shaped blank horizontally and vertically to obtain a workpiece with a suitable size. The main roller of the ring rolling machine can change the width of the ring in the radial direction, while the axial height needs to be rolled by tapered rollers. For example, in a common horizontal ring rolling machine, upper and lower tapered rollers are used to clamp the workpiece to achieve axial of rolling. [0003] The most common longitudinal section of the ring is rectangular, and this kind of workpiece is the easiest to roll; but in some environments, the cross-sectional shape is required to be irregular, such as the wind power tower flange, etc., and its cross-sectiona...

AI Technical Summary

Problems solved by technology

However, the thickness of the upward convex part of the edge of the workpiece is usually small, and the linear speed of the tapered roller on the conical surface and the concave surface is different, so the force of the workpiece on the top and the convex part is different. If it is processed to a thinner thickness, it is prone to deformation. If the reserved thickness is larger, it will still cause a large waste of raw materials in the subsequent reprocessing process

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