RU1816243C - Forging arrangement - Google Patents

Abstract

Usage: in the forging shops of metallurgical and engineering plants. The forging device comprises lower 1 and upper 2 bodies on which thrust bearings 8 and 3 are mounted, pivoting levers 10 and 5 with strikers 11 and 6 are fixed with earrings, the movement of which is limited by stops 12 and 7, the mechanism for lifting the lower levers 10 and by strikers 11. mounted in the lower case 1. made in the form of spring buffers, including springs 13, displaced in the grooves of the body 1 on the rod 14, connected through blocks 15 of cables 16 with earrings 9. The lower case in the area of the strikers is made symmetrical with respect to vertical about si inclined surfaces. 1 s.p. f-ly, 3 ill.

Description

The invention relates to the field of metal forming, in particular, to the design of devices for multilateral forging of forgings in hydraulic presses and can be used in forging and press shops of metallurgical and engineering plants manufacturing smooth large forgings,

The aim of the invention is to increase productivity and expand technological capabilities by increasing the assortment of use of blanks, both rectangular, and octagonal and other multifaceted.

In FIG. 1 shows a general view of the device (the axis of symmetry shows the upper and lower position of the upper case); in FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a section BB in FIG. 1.

The forging device according to the invention comprises a lower casing 1 and an upper casing 2, respectively mounted on a movable press table and a traverse. Two thrust bearings 3 are mounted on the upper case 2, on which pivot arms 5 with replaceable strikers 6 are fixed with the help of earrings 4, to limit the movement of which stops 7 are provided.

Two sub-bearings 8 are mounted on the lower case 1, on which two pivoting levers 10 with strikers 11 are fixed with the help of earrings 9, the movement of levers 10 with strikers 11 is limited by stops 12.

The lifting mechanism of the lower levers with strikers., Mounted in the lower case 1, is made in the form of spring buffers, including springs 13, displaced in the grooves of the body 1 on the rod 14, connected via blocks 15 with a cable 16 with earrings 9.

The lifting mechanism and the unit are closed by covers 17, 18. The surface 19 of the housing 1 is inclined to facilitate the blowing of scale.

The invention forging works as follows,

An ingot (billet) 20 of rectangular cross-section is placed by the manipulator on the strikers 11, which are raised.

When the ingot (billet) 20 is pressed by the press, the vertical force due to the rotary levers 5 with the strikers 6 and the levers 10 with the strikers 11 is converted into a radial force, which ensures the deformation of the metal from four sides. After crimping, the upper part of the device rises, and

the ingot (billet) 20 is moved on the lower strikers 11 for subsequent crimping.

Throughout the forging cycle, the resultant application of force is directed

to the center of the forging, whereby a comprehensive crimping is ensured.

The diameter of the forgings in diameter is provided by cut-out strikers b and 11.

For forging to a different diameter, the strikers b and 11 are replaced.

The proposed forging device in comparison with the prototype (AS No. 1098650) has the following advantages: it expands technological capabilities due to multilateral compression of ingots of both rectangular cross section and round, octagonal and other multi-faceted ones; simple in design and reliable in operation and can be used for forging blooms and

continuously cast billets of rectangular cross section for round forgings; allows you to increase productivity by about 10%.

Claims (2)

1. A device for forging, containing the upper and lower bodies with interchangeable strikers located in them, and in the upper case the strikers are placed on levers pivotally mounted on the body, and the levers are installed with the possibility of interacting with the thrusters rigidly mounted in the upper case, characterized in that, in order to increase productivity and expand technological capabilities by increasing the assortment of the used workpieces, the lower case is equipped with an additional striker, support bearings, earrings, levers and a return mechanism lower the strikers in the initial position, while the thrusters are rigidly fixed to the housing, the levers are mounted with the possibility of interaction with thrusters and are pivotally connected to the body by means of earrings, the strikers are fixed on levers, and the mechanism for returning the lower strikers to the initial position is made in the form of grudged spring buffers located in the lower case, the ends of the rods of which through blocks connected by a flexible connection to the ends of the earrings in a place opposite to the place where the earrings are attached to the levers. 2. The device according to claim 1, with the proviso that the lower case in the area where the strikers are located is made in the form of inclined surfaces symmetrical with respect to the vertical axis,