Main sliding block component for large precise cold rolling mill

Abstract

The invention discloses a main sliding block component for a large precise cold rolling mill. The main sliding block component comprises a main sliding block body arranged on the large precise cold rolling mill, wherein a first extruding wheel and a second extruding wheel are abreast coupled to the main sliding block body. The main sliding block component is characterized in that: a supporting device for supporting the first extruding wheel and the second extruding wheel is arranged on the main sliding block body. The main sliding block body has the advantages that: under the condition that a connection shaft of the extruding wheels is not thickened, radial stress of the extruding wheels is increased, so that the main feeding rolling force of the large precise cold rolling mill is increased greatly; therefore, the cold rolling mill can be used for rolling under a large force; and furthermore, the whole component has a compact structure, so that the rotation inertia of the extruding wheels is reduced, and the quality of a product is improved.

Description

technical field [0001] The invention relates to a precision large-scale cold rolling machine, in particular to a main sliding block assembly of a precision large-scale cold rolling machine. Background technique [0002] Cold rolling technology is a new processing method for annular workpieces such as bearing rings at room temperature. The cold rolling process is a deformation process of gradual cyclic accumulation. The ring workpiece blank is squeezed by the core roll and the rolling roll, and plastic deformation occurs during the rotation process, and the required size and cross-sectional shape are achieved through the accumulation of multiple rotations. During the processing, the extrusion wheel is driven by the main slider to approach the core roller, and a radial thrust is given to the core roller, so that the workpiece blank can be rotated and extruded to complete the rolling and expansion molding. However, since the extrusion wheel needs to provide a large thrust to t...

AI Technical Summary

Problems solved by technology

However, since the extrusion wheel needs to provide a large thrust to the core roll during the cold rolling process, and at the same time, the extrusion wheel is also subjected to a radial reaction force given to it by the core roll. Due to the large reaction force, the extrusion The connecting shaft on the wheel cannot withstand the reaction force and is damaged

Although some people increase the radial resistance of the extrusion wheel by increasing the shaft diameter of the connecting shaft, they also increase the size of the extrusion wheel and the main slider, thereby increasing the moment of inertia of the extrusion wheel and affecting the product. the quality of

Images