SU824537A1 - Method and apparatus for rolling shells - Google Patents

Abstract

;one. . The method of rolling ov ^^ ek,; tje-- forOrmir | 5'yuz < their EFFORTS to the collective warrior ribi eje outdoor bfiipSHlcJcTH; billet, p tl and h a-yu i ts and with the fact that, its goal is Ekr'-Kpi ^ Ht MeTaJifla, to improve the quality of a workbench and the previous 1 | * th of the work, the influence of defrrmation of forces The surface treatment of the surface is carried out throughout the entire process of adj. ^ K; it is forced across the outer lateral surface. A device for carrying out the method according to claim 1, comprising a frame, in the guides of which there is a drive slide in a vertical plane with a main striker, a removable mandrel mounted in racks, as well as additional blocks arranged in a horizontal plane equipped with displacement drives and mechanisms to remove them of. The working spindle in the 1zide of the power cylinders, of the short-circuit and short-circuit so that each additional firing pin is mounted On an individual slide, placed in the * g guides made in the frame, the drive of each additional firing pin is made in the form of a signal cylinder, connected to the electric cylinder of the mechanism for retraction from the working area with an additional firing head, while the power cylinders of the additional actuators are connected to the frame by means of a > & NRY PLRSKR TI.U //// - and

Description

The invention relates to the processing of metals by pressure, namely to a method of rolling large-sized shells on a horizontal mandrel and devices for implementing this method. There is a known method of rolling shells in vkh1yuch1 application of local distributive forces to a ring bar along its outer lateral aerosity, as well as the effect of deformation by the IROK11CiOn forces at the bijie face, the surface of the workpiece l. A device for carrying out this method is known, which contains a staniau, in which guides are located a pbsun drivebone in a vertical structure with a bassable detachable frame in the racks and a Taldce located in a horizontal plane, additional heads, equipped with swaps of displacements and a retraction mechanism Hit. . from the working area in the form of power cycles ditch -.- ... -. - - - -. , -.: -: The disadvantages of such a method and device are the increased consumption of metal on the finished product, the low quality of processing and the lowered productivity, which is defined as technological. and the end of the game are signs of the method and means for its implementation. The purpose of this is to improve the quality of processing, and also to improve the production of goods. - /. , -. /.;,; ... The goal is achieved by the fact that in the method of rolling, including the application of local Defrmiruu efforts for the ring ring on its outer rim surface, as well as the action of deforming forces on the end surfaces of the workpiece; This operation is carried out in the course of applying the entire process of applying to it the forces of external lateral surface. Such a method can be implemented in a device containing a frame / in the guides of the container. The drive unit is located in a vertical position, with a main striker, installed in a removable mandrel, as well as placed in a 1RISTRAL (extra durable, fixed part of the arm). 0I displacement and mechanical mechanisms. their ye working: 30Hil i c. Vedyu sshuyuyzh cylinders, each: ds please. pebble fitter on indie hodyhalrm slider, pai M epHpM in executed in sphavin Ha | piaB4flH «iHX, drive each dopolHfH eni iprp bryka vypblnen as« tij dsprb Sch1Lkndra associated with Syl val tsiliadrs "rtvedeni mechanism of rabbchey zone sootgvestvukvdego additional pin at ztom actuators drives additional pins are bonded to the frame by rods arranged in the area of the angle to the horizontal position. Fig. 1 shows a schematic representation of a blank in cross section at the time of simultaneous crimping by vertical and horizontal beats, in Fig. 2the same, at the time of crimping by horizontal ribbing after crimping by vertical striker; FIG. 3 shows a device for rolling shells, a view from the side where the workpiece is placed in the working area; FIG. 4 is a view A ya of FIG. 3.. The workpiece 1, after installation on the mandrel, is subjected to a Reel action, applying local deformation forces on its outer side surface and on the end surfaces, 1. Compressing the workpiece with a vertical striker mandrel reduces its wall thickness to increase the outer diameter and width, and crimping the ends horizontally with strikes ensures the smoothing of the face irregularities that inevitably occur during rolling, and better development of the metal, as well as improve the performance by increasing the thickness of the rolling process by creating conditions for all-round active compression in the foci of deformation and reducing the number of vinosov (for heating) blanks, At the initial stage of rolling, while The billet walls of the workpiece increase the height h of the horizontal strikers, the face compression of the joint occurs simultaneously on the vertical striker blank, and thus provides a condition of comprehensive active compression in the deformation zone. In this case, the most active developer of the metal of the billet occurs, which leads to an increase in the quality of the shell, and also increases the efficiency of rolling out due to the process intuition and reduction in connection with this number of loadings for heating. At the final stages of rolling, when the trlshchina: 5 walls are closed or less worn) and It is horizontal bouting, the end cuts alternate R with vertical ones, since horizontal breaks can affect the workpiece regardless of the vertical cushioning. This allows you to perform on the end surfaces of the required profiles, for example, i end protrusions for the selection of samples, as well as to stamp products. ; . The device for rolling shells contains a frame in the direction of

which, with the ability to move from otsilovogo hydrocyl 1 / ndra 2 and return hydraulic cylinders 3, is placed a vertical slider 4 with a vertical bboy 5. The device also contains a horizontal mandrel b, installed on racks 7 with prisms B on the EXTENDABLE table 9, the sliders 10I connected to horizontal strikers 11, placed in the closest to (maprael yu 14YH 12: and those associated with power rigs / shntsrash 13 / as well as from hydrots and Idrays 14 / pre; kp, 1 by 11 from the ends of the egoTodkia and remove these strikers from working in the press zone. Hydraulic cylinders 13 crawl in 10, they are installed in non-jQBit H, cross-pieces 15 of the arrangement 6 on both sides of the frame and fastener Hb1HMez “with themselves and with the frame tyyy16 and 17 with nuts 18.

1 16 and 17 are located in the plane; Prrohod (11th through the horizontal axis of the sliders 10 and the inclined corner under the ANGLE, which ensures that the mandrel is inserted into the working position) zone. The press table 9 has the ability to move up to the stop 19 with the 20 Chipaeica b hydraulic cylinder by means of a spindle 21 connected with a hydraulic cylinder rod 22 through a coupling kinematically connected with a rotary device 23 for noBoipOTa of the workpiece during rolling of the workpiece.

A mandrel b with a billet heated to forging temperature is installed by crane means into prisms 8 fixed through racks 7 on table 9, previously extended from the working zone of the press to the stop 19 i

o by a hydraulic cylinder 20. Then the table 9 returns to the press area with this hydraulic cylinder. The spindle 21 of the MOTOR 23 with the stroke of the hydraulic motor 22 is connected by means of a coupling with a mandrel b, after which it is manufactured;

5 rolling of the shell by repeated crimping of the billet On the spraying brisk 5 V; with crimping over the butt; the strikers 11 from the initial moment of rolling at all stages, and after each working cycle, including the impact on the workpiece by vertical and horizontal bays, the workpiece with the mandrel b is rotated by the device 23 to the required

5 Ugr, while the strikers 11 are withdrawn from the workpiece by hydraulic cylinders 14.

In this way, it is carried out. The economical process of rolling out at. high quality processing and higher.

0 cervical performance.

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Claims (2)

'one. . A method of rolling shells, including the application of local deforming forces to the annular workpiece along its outer lateral surface, as well as the effect of deforming forces on the end surfaces of the workpiece, which requires that, in order to save metal, improve processing quality and increase productivity, the impact of deforming forces on the end surfaces of the workpiece is carried out during the entire application process .. her efforts on the outer side surface. 2. A device for implementing the method according to π. 1, comprising a bed, in the guides of which a slider with a main striker is mounted in a vertical plane, a removable mandrel installed in the racks, and also additional strikers placed in the horizontal plane, equipped with displacement drives and mechanisms, for their removal from. of the working zone in the form of power cylinders, with the exception of the fact that each additional hammer is mounted on an individual slider located in guides made in the frame, the drive of each additional hammer is made in the form of a power cylinder associated with the power cylinder of the mechanism of removal from the working area of the corresponding additional striker, while the power cylinders of the drives of the additional strikers are connected to the bed by means of rods located in a plane at an angle to the horizontal plane.