SU1310070A1 - Arrangement for face rolling of parts on the press - Google Patents

Abstract

The invention relates to the field of press-forging equipment, namely, devices designed for face rolling of parts such as discs on vertical presses. The purpose of the invention is to increase the durability of radial spherical bearings, the reliability of the device. In the shells of the device, the work rolls (PB) with intersecting axes are mounted for rotation, for the perception of axial loads that occur during rolling, are radial-spherical spherical bearings supported by their ends on bevel rings with a bevel angle equal to the angle of PB , to the axis of the AA press. The centers B and B of the spherical surfaces of the bearings and the center B of the contact pressures of the tool (punch and die) are on the AA axis of the press. A deformable package is placed in a matrix. The rotary drive of the lower PB is turned on and the press slider is brought in until the punch makes contact with the workpiece. After rolling, the billet is removed using a pusher, 1 s, n, f-ly, 2 Il. (L

Description

The invention relates to forging equipment, namely devices designed for face rolling of parts on a press. The aim of the invention is to increase the durability of radial spherical bearings and the reliability of the device.

FIG. 1 shows the device section; in fig. 2 shows the layout of the workpiece relative to the axes of the press and the rolls.

The device contains work rolls 2 with intersecting axes mounted in housings 1 that can be rotated from the drive. In cases 1, thrust-radial spherical bearings 3, mounted on rollers 2, are placed with the work rolls 2; the tool is a punch 4 and a die 5. Bevel rings 6 are located between the housings 1 and radial thrust bearings with a bevel angle equal to the angle of inclination work rolls 2 to the axis A-A of the press, while the centers B and B of the spherical surfaces of the bearings 3 and the center C of the tool’s contact pressure are located on the axis A-A of the press. The device is placed on the bed 7 and the slider 8 by means of intermediate plates 9 and a bolted joint 10. For the perception of radial loads, the rolls 2 are mounted in radial bearings 11 and 12. The lower roll 2 is rigidly connected to the wheel 13 of the gear drive of the roll rotation drive (not shown) . In the central hole of the lower roll 2, an ejector 14 is placed (the drive of the ejector is not shown), the additional bevelled rings are secured against the wires by pins 15.

The device works as follows.

The workpiece 16 is placed in the die 5, the rotational drive of the lower work roll 2 is turned on, and the press slider 8 is brought in before the punch 4 contacts the workpiece 16. At the same time, the upper work roll 2 together with the punch 4 is rotated from the workpiece 16. using the ejector 14.

In the process of processing the workpiece 16 55 contact pressure of the tool from the point C of the center of contact pressure

the workpiece is acted upon by the force P — the resultant contact pressure perpendicular to the surface of the workpiece 16, which can be decomposed into two forces: the force P parallel to the press axis and the force P parallel to the surface of the workpiece 16. The angle of inclination of the axes of the rolls 2 to the press axis is 1 ° 30-3; therefore, the force P perceived by the radial bearings constitutes only a small fraction of the resultant contact pressure.

The use of additional bevel rings and placing the centers of the spherical surfaces of the radial spherical bearings and the center of contact pressures of the tool on the vertical direct eliminates the eccentric load on the rolling elements of the bearings, and placing the center of the contact pressures of the tool on the press axis ensures uniformity of pressure on the press elements and the devices.

Claims (2)

1. A device for face rolling of parts on a press, containing work rolls mounted for turning from a drive with intersecting axes, housed in housings with the ability to interact with the work rolls radial thrust spherical bearings, as well as a tool fixed to the rolls, characterized in that, in order to increase durability radial thrust spherical bearings and device reliability, it is equipped with spaced housings and thrust-radial spherical bearings rings with surfaces beveled at one end with a bevel angle equal to the angle of inclination of the work rolls to the axis of the press; The bearings and the contact pressure center of the tool are located on the vertical straight line. 2. The device according to claim 1, about tl and - that the center placed on the axis of the press.  t /////// /. eight BUT b SderaR 2) i Axis ffepxfwffo ffa / r / fct Os press - Axis saeofrro Mij t / mtf) oj7ffa Editor N.Shvydka Compiled by V.Nonikarov Tehred M. Khodanich Proofreader S. Cherni 1821/8 Circulation 733 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 fue2