SU963722A1

SU963722A1 - Apparatus for producing hollow blanks

Info

Publication number: SU963722A1
Application number: SU813260907A
Authority: SU
Inventors: Юрий Павлович Лутовинов; Вадим Борисович Чижик-Полейко; Владимир Федорович Коваленко
Original assignee: Экспериментальный научно-исследовательский институт кузнечно-прессового машиностроения; Воронежский технологический институт
Priority date: 1981-03-16
Filing date: 1981-03-16
Publication date: 1982-10-07

Description

(54) УСТРОЙСТВО ДЛЯ ПОЛУЧЕНИЯ ТРУБНЫХ ЗАГОТОВОК(54) DEVICE FOR RECEIVING PIPE BLOCKS

Изобретение относитс к обработке металлов давлением и может быть использовано в машиностроении дл получени трубных заготовок. The invention relates to the processing of metals by pressure and can be used in mechanical engineering for the production of tubular blanks.

Известно устройство дл получени трубных заготовок, содержгицее размещенные на станине механизм зажима и подачи трубы в виде захватов , отрезные ролики, раскатной нож, размещенный между отрезными роликами с возможностью взаимодействи с ними, привод радиального перемещени раскатного ножа, привод вращени и механизм удгшени отрезанной заготовки 1.A device for receiving billets is known, the mechanism for clamping and feeding the pipe in the form of grippers, cutting rollers, rolling knife placed between cutting rollers with the possibility of interacting with them, driving the radial movement of the rolling knife, driving rotation and cutting mechanism of the cut billet 1, are placed on the frame. .

Недостатком известного устройства вл етс низкое качество получаемых заготовок, так как формовка производитс только деформацией заготовки изнутри, а снаружи условий дл направленного перераспределени металла не создаетс .A disadvantage of the known device is the low quality of the obtained blanks, since the molding is performed only by deformation of the blank from the inside, and outside conditions for the directional redistribution of the metal are not created.

Цель изобретени - повышение качества получаекых заготовок.The purpose of the invention is to improve the quality of the preforms.

Цель достигаетс тем, что устройство дл получени трубных заготовок , содержащее размещенные на станине механизм зажима и подачи трубы Б виде захватов, отрезные ролики, раскатной нож, размещенный между отрезными роликами с возможностью взаимодействи с ними, привод радиального перемещени раскатного ножа, привод вращени и механизм удалени )трезанной заготовки, снабжено формовочными роликами, размещенными со стороны торцовых поверхностей отрезных роликов, и приводом синхронного радиального перемещени формо10 вочных роликов, при этом захваты механизма зажима и подачи св заны с приводом вращени .The goal is achieved by the fact that a device for receiving billets, comprising a clamping mechanism and tube feeding on a frame, in the form of grippers, cutting rollers, a rolling knife placed between the cutting rollers with the ability to interact with them, driving the radial movement of the rolling knife, driving the rotation and mechanism removal) of the cut billet, equipped with molding rollers placed on the side of the end surfaces of the cutting rollers, and driven by the synchronous radial movement of the forming rollers, and, the grippers of the clamping and feeding mechanism are associated with a rotating drive.

На фиг. 1 изображено устройство в момент завершени отрезки заготовки, FIG. 1 shows the device at the time of completion of a piece of workpiece,

15 общий вид; на фиг. 2 - разрез А-А на фиг. 1 (момент начала удалени заготовки ).15 general view; in fig. 2 shows section A-A in FIG. 1 (time to start removing the workpiece).

Устройство содержит станину 1 и размещенные на ней механизм за20 жима, подачи-и вращени трубы, механизм реза и формовки, механизм , удалени отрезной заготовки.The device comprises a frame 1 and a mechanism for clamping, feeding and rotating a pipe, a cutting and forming mechanism, a mechanism for removing a cutting piece.

Механизм зажим, подачи и вращени трубы состоит из приводных зах25 ватов 2 и 3, зубчатой передачи 4 и привода 5 вращени .Захваты 3 имеют возможность перемещать трубу на величину t , равную длине заготовки.The mechanism for clamping, feeding and rotating the pipe consists of driving seals 2 and 3, gear 4 and rotational drive 5. The grippers 3 have the ability to move the pipe by an amount t equal to the length of the workpiece.

Механизм реза и формовки состоит The mechanism of cutting and forming consists

Claims

30 of the rolling knife b with the stop 7, the cutting rollers 8, the molding rollers 9 and the elements used for their placement and drive. Roller blade 6 with an anvil 7 is freely mounted on bearing supports in a slider 10, which with a drive of 11 radial movement is placed in guides 12 on a carriage 13 mounted on the direction 14 of frame 1 and connected to the drive 15 of longitudinal movement. The cutting rollers 8 are freely mounted on the bearing supports in the frame 1 so that the space between their outer cylindrical surfaces is sufficient to pass the pipe being fed to the treatment (with two cutting rollers 8, the distance between their cylindrical surfaces is equal to the diameter of the pipe | Rollers The movements do not have "Molding rollers 9" are installed on the bearing supports in the sliders 16, which are located in the guides 17 of the frame 1 and are connected to each other by the mechanism 18 of synchronous radial (for the sake of simplicity, it is not shown completely in the figure as it is placed inside the bed under the pipe being cut) The profiles of the rolling knife 6 and the molding rollers 9 correspond to the profile and the inner and outer surfaces of the workpiece being separated. The mechanism for removing the cut piece is made in the form of a slip 19 and supporting spring-loaded strips 20, placed in the frame 1 near the groove about under the cut part of the pipe, and the pusher 21 with the actuator 22, mounted above the cut part of the pipe on the bracket 23 mounted on the bed 1. In original the bottom position of the grippers 2 and 3 are divorced longitudinally and radially for free passage of the pipe; roll knife 6 stands in the middle between the rollers coaxially with grippers 2 and 3; rollers 8 and 9 are installed so that their cylindrical surfaces are equidistant from the feed axis t) loss; pusher 21 and spring-loaded bar 20 lifts. The device works as follows. The actuator 5 continuously rotates the gear train 4, the pipe 24 is supplied, for example, with a roller table, into the space between the rollers 8 and 9, the bar 20 and the pusher 21 up to the stop 7 and clamped by the grippers 2 and 3, which also causes the pipe 24 to rotate. The drive 11 of the radial movement of the rolling knife 6 is turned on, which begins to roll out the tube 24 from the inside, first protruding sections of the bogs are formed between the rolling knife 6 and the forming rollers 9, and then the whole blank. As the outer diameter of the workpiece increases, all the molding rolls 9 are retracted together, which is provided by the mechanism 18 of synchronous radial movement. As a result, molding and cutting of the workpiece 25 is accomplished. Having made the cut, the rolling knife 6 returns to its original position. The carriage 13 is moved, carrying out the rolling knife 6 from the workpiece 25. The pusher 21 pushes the workpiece 25 down, pulling the spring-loaded bar 20 through the groove and along the slide 19 and then into the container 26. Then the pusher 21, the bar 20 and the carriage 13 return to their original position. The cycle is complete. To perform the next cut, the pipe 24 with the grippers 2 and 3 is applied to a stroke E equal to the length of the workpiece, and the cycle is repeated. The proposed device allows to improve the quality of the workpieces produced on it in comparison with pstopeep. Apparatus of the Invention A device for receiving tubular blanks comprising a clamping mechanism and a tube feeding in the form of grippers placed on a frame, cutting rollers, a rolling knife placed between the cutting rollers with the ability to interact with them a radial movement drive of the rolling knife, a rotation drive and a mechanism for removing the cut piece, characterized in that, in order to improve the quality of the workpieces produced, it is provided with molding rollers placed on the side of the end surfaces of the cutting rollers, and rivodom simultaneous radial movement of the forming rollers, wherein the grippers grip and feed mechanism associated with the rotational drive. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 617183, cl. At 23 ° D 21/10, 1976 (.prototype).