SU863134A1 - Apparatus for forging annular works - Google Patents

Description

(54) CONSTRUCTION FOR FORGING RING FORGES

one

I The invention relates to the processing of metal inoB by pressure and can be used in meta-fabrication and mechanical engineering in the manufacture of ring forgings by rolling on a sheet.

It is known) a device for ring blanks, containing strikers, pillars and a mandrel 1 installed therein.

(The advantages of this device are a large number of heavy manual operations that reduce the productivity of the forging process, as well as the low durability of the device, due to its rapid exit from construction.

The purpose of the invention is to increase the productivity and reliability of the device.

The delivered chain is achieved by the fact that in the device for forging ring forgings, the striker bars and the straightener mounted on them are straightened with a flat ysaciKOM in the middle part.

FIG. V shows a diagram of the device in the position corresponding to the process of rolling ring forgings, view sbszhu; in fig. 2 the same, view from the side of one of the racks; t

FIG. 3 shows a device in the second stage of forging a ring forging associated with its height draft.

The device comprises posts 1 with longitudinal cuts for accommodating a mandrel 2, imitating a cylindrical section 3, a flat section 4, a clamping part 5, housed in the manipulator tubes 6.

Construction sites 1 with the help of a support ledge, made in the form of a dovetail and Kli11

10 rigidly h: akresh1 are hampered by hammer 7. A mandrel consisting of a cylindrical part and a flat portion is held in a horizontal position for part 5 of the jaw 6 of the manipulator. In the upper part of the pillars, Y-shaped cuts for placing the mandrel and flat ones are installed in the longitudinal direction (Saddle surfaces for laying the flat section of the mandrel 5). The device works as follows.

The initial billet with a HarpeBaeTOj bore to the forging temperature and a rotary crane, or other means of mechanization, is fed to the forging hammer or press and installed into the cutout under the mandrel on the rack 1 so that the axis of the bore in the forging coincides with the reference axis. The jaws of the manipulator firmly hold the mandrel by the clamping portion, which is inserted into the hole of the heated billet, so that the latter is located in the middle of the cylindrical portion of the mandrel. The mandrel is installed in the notches of the racks. The process of rolling the forging through the striker is carried out. The rotation of the mandrel is made by means of a manipulator (Fig. 1 and 2).

After the rolling process is completed, the mandrel is removed from the racks with the aid of a manipulator and lifted out of the rolling ring 9, then moved to the racks so that the flat section 4 is placed on the supporting points of the racks. The rolled ring is placed on a flat area (weed and the ring is precipitated in height to eliminate waviness of the ends and distortions of the forging obtained during the rolling process (Fig. 3). The finished forging is removed and the process is repeated.

The proposed device allows forging ring forgings with minimal manual labor, resulting in increased productivity. The stiff construction of the pillars and the mandrel, the middle part of which is made with a flat section, ensures high reliability of the device.

Claims (1)

Invention Formula A device for forging ring forgings which contains strikers, a construction site and a mandrel mounted on them, characterized in that, in order to increase productivity and reliability, the mandrel is made with a flat portion in the middle part. Sources of information taken into account in the examination 1. Bryukhanov A. N. Forging and die forging. Mechanical Engineering, 1975, p. 105, fig. 77.