SU1299670A1 - Cylindrical forge rolling - Google Patents

Abstract

The invention relates to the field of metal forming and can be used in the expansion of pipes. The purpose of the invention is to improve the quality of the rolled compound. After rolling into the processed pipe, separator 2 is imparted with rotational movement, which is transmitted to roller rollers 5 and support rollers 7. The latter roll around the conical spindle (B) 1. Because rollers 7 are turned relative to B 1, they pull it in axial direction. segments 3, rotating around B 1, begin to move in the radial direction. Rolling rollers 5 roll in the pipe from the inside without slipping but its internal surface. 2 Il. FIG. 7 to with so about :) o

Description

The invention relates to the processing of metals by pressure and can be used for the expansion of pipes.

The aim of the invention is to improve the quality of the rolled compound.

FIG. Figure 1 shows cylindrical rolling, cross section; in fig. 2 shows section A-A in FIG. 1 (in grooves, separator support intermediate rollers).

The device contains a conic spindle 1 (Fig. 1) located inside the separator 2. The separator 2 is made split and consists of ring segments 3 located at the same distance from each other. The number of ring segments 3 may be any, but not less than three, otherwise the cylindrical rolling becomes inoperative. In the grooves 4, made on the outer surface of the segments 3, cylindrical rollers 5 are placed. In the grooves 6, made on the inner surface of the segments 3, the support rollers 7 are placed. equals two. The axes of the support rollers 7 are rotated relative to the axis of the conical spindle at a self-engaging angle, the rollers 7 are in contact with the conical spindle. An annular spring 8 is provided to hold the ring segments 3.

Cylinder roller works as follows.

After rolling into the treated pipe (not shown), the separator 2 (Fig. 1) is subjected to rotational motion.

which is transmitted as a result of contact with the tube by the rolling roller 5, and as a result of contact with the tapered spindle 1-- intermediate support roller 7. The intermediate support rollers 7 roll in

the conical spindle and, due to its unfolding relative to the conical spindle 1, unable to move relative to the separator 2, the conical spindle 1 is pulled in the axial direction.

The ring segments 3 of the separator 2, rotating around the conical spindle 1, begin to move in the radial direction. Rolling rollers 5, which are located in the grooves 4 of the separator 2, roll the pipe from the inside without slipping on its inner surface, which improves the quality of the connection.

Claims (1)

Invention Formula A cylindrical rolling containing a conic spindle, a separator in which the rollers and the rollers installed with the possibility of contact with the spindle, are characterized in that, in order to improve the quality of the rolled joint, the separator is dispensed; 1nen times, I mean to her as three ko. There are 1 groove segments evenly spaced around the circumference, while on the outer surface of each segment there is a groove in which a video roller is placed, and on the inside two pockets are made, each of which has a support roller mounted at an angle givapi to the axis of the spindle. Compiled by I. Kashggonov Editor N. Shvydka Tehred I. Veroekorrekgor M. lllapoujii Order 809/8 Draw 733 Subscription VNNPI of the State Committee of the USSR .R inventions and otkrytyh P3035, L Oskna. F - 35, Raushsk nab. D. - / S Proizvod1 ekno-po. 1g |; a () ical ir; 1, | 1ri tle, Uzhgorod, y. i. Design .. -1