RU2448835C1 - Hydraulic stamping-extrusion machine - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming, particularly, to hydraulic press for stamping and extruding tubes. Proposed press comprises frame foundation made up of C-shaped yokes. Yoke heads are jointed by beams and brace rods to form top and bottom girders. Top girders provided with connection beam accommodate operating hydraulic cylinders. Piercing hydraulic cylinder is arranged on said connection beams. Bottom girders are provided with central vertical opening and inner and outer spacers. Said spacers are fixed on extreme C-like yokes and locked by tie rods. Proposed machine is equipped with two moving tables, one intended for stamping tooling and another one for extrusion tooling.

EFFECT: expanded performances.

6 cl, 7 dwg

Description

The invention relates to metallurgical engineering, namely to universal hydraulic presses capable of extruding pipes along with stamping.

Known stamping presses having a frame bed and cross members assembled from welded forged plates and beams (see, for example, A.F. Belov, B.V. Rozanov, V.P. Lints. "Volumetric stamping on hydraulic presses". M .: "Engineering". 1986, p. 48-49, Fig. 25).

Low working pressures, a large number of cylinders lead to an increase in the dimensions of the structure and high metal consumption of the press.

A press is known that contains a frame bed made of lamellar C-shaped brackets, the heads of which are connected by beams and fastened with ties (see, for example, ibid., P. 44-45, fig. 23, and p. 56, fig. 29) .

This press is designed for stamping large parts on it, mainly for aviation.

The closest analogue of the claimed invention is a stamping and extrusion hydraulic press containing a bed, working hydraulic cylinders and a work table with die tooling, mounted with the ability to move (SU 1802798 A3, B30B 1/32, 03/15/1993).

Currently, the development of nuclear energy requires the creation of the production of steel pipes of large diameter and at the same time stamping disks, bottoms, boiler elements and turbines.

The technical result of the present invention is the expansion of technological capabilities through the creation of a universal powerful hydraulic press capable of extruding large diameter pipes along with stamping.

The technical result is achieved by the fact that a stamping-extrusion hydraulic press containing a bed, working hydraulic cylinders and a working table with die tooling, mounted with the ability to move, equipped with a piercing hydraulic cylinder, the frame is made of frame type from plate C-shaped brackets, the heads of which are fastened with beams and ties with the formation of upper and lower crossbars, working hydraulic cylinders are installed on upper crossbars equipped with a connecting beam, a piercing hydraulic cylinder is installed on the said edinitelnoy beam crossbars upper and lower crossbars formed with a central vertical opening and provided with external and internal spacer, fixed on the extreme C-shaped brackets and co-tightened force ties.

The press can be equipped with a second table with extrusion equipment located on it, mounted on the lower crossbars and internal spacers with the ability to move to the side opposite to the working table with die tooling. In this case, the tables for stamping and extrusion equipment are equipped with central and two lateral teeth located on the supporting surfaces, arranged to move, respectively, in the central aperture of the crossbars and in the grooves made on the crossbars and spacers between the crossbars.

The press can be equipped with an elevator lift of products with a mechanical drive installed outside the press on the axis of movement of the table with extrusion equipment, container holder shutters made in the form of hydraulic wedge grips, a container lift with a hydraulic lift.

The invention is illustrated by graphic materials, where:

figure 1 - General view of the press;

figure 2 - General view of the press, view along A;

figure 3 - table press with extrusion equipment;

figure 4 - elevator elevator products;

5 is a shutter container holder;

6 is a stamp tool;

Fig.7 - container lift.

The stamping and extrusion hydraulic press contains a frame bed 1 made of lamellar C-shaped brackets 2 and 3, the heads of which are connected by beams 4, 5 and fastened by ties 6 and 7, forming respectively the upper 8 and lower 9 crossbars.

The brackets 2 and 3 have elongated lower head parts, which, when assembled, form an opening 10 between themselves to accommodate and remove the extruded product (not shown).

The lower bolts 9 of both press frames are interconnected by means of longitudinal power ties 11 and 12, external spacers 13 and 14, mounted on the extreme brackets of the bolts 9, and internal spacers 15 (figure 2), mounted on the extreme inner brackets of the bolts 9.

The thermal tightening of the power ties 11 and 12 and the key connections 16 and 17 of the external and internal spacers 13, 14, 15 with brackets create a monolithic base for perceiving the power flow from the working table 18 of the press with die tooling and uniform loading of the press frame 1.

To carry out pipe extrusion, the press is equipped with a second working table 19 (Fig. 3), on which extrusion equipment 20 is placed.

Working tables 18 and 19 of the press, designed for punching and extrusion equipment (Fig. 3), are made with central 21 and two lateral longitudinal teeth 22 placed with the possibility of movement - the central 21 - in the opening of the crossbars 10, and the side 22 - in the grooves made on crossbars 9 and spacers 13, 14 and 15.

To carry out the extrusion of large diameter pipes, the press is equipped with an elevator of the product 23 (Fig. 4) with a mechanical drive (not shown), container holder shutters (Fig. 5), made in the form of hydraulic wedges 24 with a container lifter 25 (Fig. 7) with hydraulic drive (not shown).

Press works as follows.

To carry out stamping, the working table 18 (FIG. 6) is pushed into the press zone with die tooling, which includes die holders 26, 27 and stamps 28, 29. The movable cross member is released until the clamp holders 26 and 27 are closed. The upper stamp tool is attached to the movable cross member 30. Next, the movable cross member 30 rises and hot dies 28 and 29 are installed on the extended working table 18. The table 18 is retracted into the press, the dies 28 and 29 are attached to the die holders 26 and 27.

Stamping on the press is carried out as usual: installation of a workpiece (not shown) on the lower stamp 29, its lubrication, press loading, stamping, lifting the movable cross member 30, removal of the stamped part (not shown).

For the extrusion of pipes into the press, the working table 19 is retracted with snap-in 20 for extrusion (Fig. 3). The upper part of the equipment, including the stamp 31 and the needle 32, is attached to the movable cross member 30. Table 19 is installed on the piercing position.

The hot workpiece 33 manipulator is installed on the spacer 34 (Fig.7). The container 35 by the elevator 25 is lowered onto the workpiece 33 and closed by the closures 24 of the container holder. The course of the stamp 31, the workpiece 33 rassresivaetsya. Then the needle 32 flashes the workpiece 33 while lifting the stamp 31. After flashing, the closures 24 of the container holders are opened and the container 35 together with the stamp 31 and the needle 32 lifts up. Next, the desktop 19 moves to the extrusion position. In this case, the matrix 36 with the matrix holder and their support stand coaxially with the needle 32 and the stamp 31.

The container 35 with the needle 32 and the stamp 31 are lowered onto the die 36. The closures 24 of the container holder are closed. The joint course of the movable cross member 30 and the piercing system is the process of extrusion of the pipe.

After the pipe is received, the needle 32 is removed from it. The gates 24 of the container holder are retracted. The container 35 rises and releases the pressure switch. Table 19 leaves the press and rises outside the press to the pipe extraction position with the help of the elevator elevator 23 of the crane device 37.

Thus, the creation of an opening on the basis of a powerful stamping press (force 800 MN) in its lower crossbars for outputting an extruded pipe of large diameter and the installation of a second table with extrusion equipment will allow, along with stamping of large-sized products, extrusion steel pipes with a diameter of up to 1.2 m, length up to 13 m.

Claims (6)

1. A stamping and extrusion hydraulic press containing a bed, working hydraulic cylinders and a work table with die tooling, mounted with the ability to move, characterized in that it is equipped with a piercing hydraulic cylinder, the frame is made of frame type from plate C-shaped brackets, the heads of which are fastened with beams and couplers with the formation of upper and lower crossbars, working hydraulic cylinders are installed on the upper crossbars equipped with a connecting beam, a piercing hydraulic cylinder is installed on the said connecting ball ke of the upper crossbars, and the lower crossbars are made with a central vertical opening and are equipped with external and internal spacers fixed to the extreme C-shaped brackets, and together pulled together with power ties. 2. The press according to claim 1, characterized in that it is equipped with a second table with extrusion equipment placed on it, mounted on the lower crossbars and internal spacers with the ability to move to the side opposite to the work table with die tooling. 3. The press according to claim 2, characterized in that the tables for stamping and extrusion equipment are equipped with central and two lateral teeth located on the supporting surfaces, arranged to move respectively in the central aperture of the crossbars and in the grooves made on the crossbars and spacers between the crossbars. 4. The press according to claim 1, characterized in that it is equipped with an elevator hoist of products with a mechanical drive mounted outside the press on the axis of movement of the table with extrusion equipment. 5. The press according to claim 1, characterized in that it is equipped with gates of the container holder, made in the form of hydraulic wedge grippers. 6. The press according to claim 1, characterized in that it is equipped with a container hoist with hydraulic lift.

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