SU1393515A1 - Mill for rolling rings - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in the rolling of shaped rings. The goal is to expand the technological capabilities by ensuring the expansion of rings with a different cross section without re-adjusting the rolls of a predominantly asymmetrical profile. The workpiece is mounted on a support plate and clamped between the rolls. The base plate (SP) with mounted centering rollers and mechanisms for their movement is mounted hinged on the frame. In this case, the turn of the OD occurs in the plane passing through the neutral line of the caliber formed by the working surfaces of the rolls. In the case of turning on the mechanism of rotation of the OP, a new cross section profile of the ring is obtained, since together with the OP, the inner roll is rotated relative to the outer one. The possibility of obtaining a new profile of the ring without stopping the mill for retooling rolls is achieved by the fact that the axis of rotation of the OP lies in the plane passing through the neutral line of the gauge of the roll rollers. I zp f-ly, 3 ill. i

Description

The invention relates to the field of metal forming and can be used for rolling core rings.

The aim of the invention is the expansion of technological capabilities by providing, without retooling of the rolls, the possibility of rolling rings with a different cross section, a predominantly asymmetrical profile.

Fig. 1 shows the kinematic diagram of the mill; in fig. 2 - camp, general view; in fig. 3 is a view A of FIG. 2

The ring rolling mill includes a bed 1, inner 2 mounted on it on parallel axes, and 2 driven outer rolls, 4 moving the outer roll 3, centering rollers 5 with their movement arranged symmetrically relative to a plane passing through the longitudinal axes rolls 2 and 3 and the support plate 6, which is mounted on the frame so that it can be rotated on the hinges 7 in the axial plane of the rolls, and the centering rollers 5 with their movement mechanisms are mounted on the support plate 6. Mechanism The turning angle of the support plate 6 is made in the form of a power cylinder 8.

The axis of rotation of the base plate is located in the plane passing through

rolls 2 and 3. The value of this angle is selected depending on the cross-sectional configuration of the ring 10, the diameter of the inner roll and the ring blank, and the ring is rolled in a position inclined relative to the rolls (Fig. 2). With such a position of the ring 10, it is possible to form internal cavities in the cross section of the rings and the rolling of rings with an asymmetrical profile, for example, L-shaped, without the formation of technological protrusions and flanges.

The invention allows, through rotation of the base plate, and with it the roll out ring, to expand technological capabilities and increase productivity by eliminating the stop of the mill for retooling rolls for making rings with a different cross-sectional profile.

Claims (2)

1. A mill for rolling rings, including a stand, internal and drive outer rolls installed in it on parallel axes, a drive for moving an outer roll, centering rollers with a drive for moving them, arranged symmetrically relative to the plane passing through the longitudinal axes of the rolls and a neutral line of gauge, formed by a 5 base plate, distinguished by the working surfaces of the rolls. To reduce wear, the plate 6 is provided with rollers 9 in contact with the rolling ring 10. The outboard outer roll 3 with the rotational drive 4 is connected hingedly by means of the shaft 11 and is provided with a pressing device 12. The camp works as follows. When rolling rings with a symmetrical onopHiTO cross section, plate 6 is placed perpendicular to roll axes 2 and 3 so that it is completely adjacent to frame 1. In this case, the mill works in the usual manner. If necessary, the rolling of rings with an asymmetrical cross section, for example, L-shaped, support plate 6, using the help of the power cylinder 8, is scattered at an angle to the axle 40 45 50 55 so that, in order to expand technological capabilities by providing, without retooling the rolls, the possibility of rolling rings with a different cross section, a predominantly asymmetrical profile, the support plate is mounted on the frame and is hinged relative to it with the possibility of rotation in the axial plane of the rolls, while the axis the rotation of the base plate is located in the plane passing through the neutral line of the caliber formed by the working surfaces of the rolls, and the centering rollers with the Mami their movements are mounted on the operatic plate. 2. Mill POP.1, which is different from the fact that the mechanism of rotation of the support plate is hydraulically driven, 0 five 0 five so that, in order to expand technological capabilities by providing, without changeover of the rolls, the possibility of rolling rings with a different cross section, a predominantly asymmetrical profile, the support plate is mounted on the frame and is hinged relative to it with the possibility of rotation in the axial plane of the rolls, while the axis of rotation The support plate is located in the plane passing through the neutral line of the gauge formed by the working surfaces of the rolls, and the centering rollers with mechanical Mami their movements are mounted on the operatic plate. 2. Mill POP.1, which is different from the fact that the mechanism of rotation of the support plate is hydraulically driven, rig. one fi. 2 f2 . J