SU299100A1

SU299100A1 - Method of producing bilateral branches on flat and curvilinear article walls

Info

Publication number: SU299100A1
Application number: SU691372503A
Authority: SU
Inventors: Е.Н. Мошнин; Л.В. Прозоров; Н.Е. Мошнин; Н.И. Жильцов; В.З. Гуревич
Original assignee: Центральный Научно-Исследовательский Институт Технологии Машиностроения
Priority date: 1969-11-11
Filing date: 1969-11-11
Publication date: 1981-09-30

Description

Изобретение относится к области обработки металлов давлением, а именно к технологии изготовления деталей с двухсторонним патрубком на корпусах арматуры, задвижках, клапанах и т.п.The invention relates to the field of metal forming, in particular to a technology for manufacturing parts with a double-sided pipe on valve bodies, valves, valves, etc.

Известные способы получения высоких патрубков на плоских и криволинейных стенках изделий из предварительно отформованного одностороннего патрубка с последующим перемещением части его металла в осевом направлении раздачей с калибровкой отверстия для образования патрубка с другой стороны стенки изделия не позволяют получать высокий двухсторонний патрубок.Known methods for producing high nozzles on flat and curved walls of products from a preformed one-way nozzle with subsequent axial movement of part of its metal by distributing with a hole calibration to form a nozzle on the other side of the product wall do not allow to obtain a high two-way nozzle.

Цель изобретения - увеличение высоты двухстороннего патрубка.The purpose of the invention is to increase the height of the two-way pipe.

Это достигается тем, что перемещение металла осуществляют нажатием на торец имеющегося одностороннего патрубка и одновременно создают противодавление в месте торцовой части вновь образующегося патрубка, а для получения патрубков с малыми радиусами закругления на торце внутреннего патрубка, преимущественно в корпусах запорных задвижек, калибровку осуществляют по всей, поверхности двухстороннего патрубка в конечный момент деформирования.This is achieved by the fact that the metal is moved by pressing the end face of an existing one-way nozzle and at the same time create back pressure at the end part of the newly formed nozzle, and to obtain nozzles with small radii of curvature at the end of the inner nozzle, mainly in the body of the gate valves, calibration is carried out throughout, the surface of the double-sided pipe at the final moment of deformation.

На фиг.1 изображена заготовка с _ односторонним патрубком, полученным отбортовкой; на фиг.2 - начальный момент формообразования двухстороннего патрубка/ на фиг.З - конечный момент формования двухстороннего ._ патрубка.Figure 1 shows the workpiece with _ one-way pipe obtained by flanging; figure 2 - the initial moment of formation of the double-sided pipe / in Fig.Z - the final moment of molding of the double-sided ._ pipe.

.Предложенный процесс осуществляется следующим образом.. The proposed process is as follows.

Заготовка 1 зажимается в зоне патрубка между двумя матрицами 2. В отверстие патрубка вводится оправка15 пуансон свободно или с раздачей отверстия до соприкосновения нажимной, кольцевой плоскости с торцом патрубка, а с другой - подводится подпорное кольцо с заданным усилйем. Затем пуансону сообщается дальнейший ход, при котором патрубок сжимается между пуансоном и подпорным кольцом до напряжения, превосходящего предел текучести, после чего начинается переме5 щение металла и заполнение им полости патрубка с противоположной стенки заготовки. *The workpiece 1 is clamped in the area of the nozzle between the two dies 2. A mandrel15 is inserted into the nozzle opening15 with a punch freely or with a dispensing of the hole until the pushing, annular plane touches the end of the nozzle, and on the other, a retaining ring with a predetermined force is brought. Then the further stroke is communicated to the punch, in which the nozzle is compressed between the punch and the retaining ring to a voltage exceeding the yield strength, after which the metal begins to move and fill the cavity of the nozzle with it from the opposite wall of the workpiece. *

При формоизменении заготЬвки подпорное кольцо опускается при заранееWhen forming the blank, the retaining ring is lowered in advance

Ю задаваемом усилиии сопротивления, в очаге деформации напряжение всесторонпротяжении всего проблагодаря чему поддерживается него сжатия на цесса деформации.According to the preset resistance force, in the deformation zone, the stress is comprehensively extended, thereby supporting compression on the deformation process.

В конечный момент деформирования подпорное кольцо стопорится, усилие на пуансоне повышается, и происходит калибровка окончательной формы двухсто£оннего патрубка. При этом также моет быть выполнено утолщение стенки вокруг патрубка для дальнейшего повышения прочности изделия в зоне патрубка.At the final moment of deformation, the retaining ring stops, the force on the punch increases, and the final shape of the double-ended pipe is calibrated. At the same time, thickening of the wall around the nozzle can be performed to further increase the strength of the product in the area of the nozzle.

Claims

(54) METHOD FOR OBTAINING TWO-SIDED.X PLTRUBCO; IN ON FLAT AND CURVED LINEAR WALLS on flat and curved walls of products from a preformed one-way pipe and then moving a part of its metal in an axial direction with distribution, calibrating the hole to form a pipe with each other On the other side of the product wall, it is not possible to obtain a high double-sided connection. The purpose of the invention is to increase the height of the double-sided pipe. This is achieved by moving the metal by pressing the butt of the existing one-way pipe and at the same time creating a back pressure at the end of the newly formed pipe, and for obtaining pipe with small radii of curvature at the end of the internal pipe, mainly in the cases of gate valves, calibration was performed over the entire surface of the PRODUCT double-sided pipe at the final moment of deformation. Figure 1 shows a billet with one-way pipe flange; Fig. 2 shows the initial moment of shaping the double-sided nozzle / Fig. 3 shows the final moment of the formation of the double-sided nozzle. The proposed process is as follows. The workpiece 1 is clamped in the area of the nozzle between two dies 2. Enter the mandrel junction freely or with the distribution of the hole until the pressure, annular plane touches the end of the nozzle, and the other is supplied with a predetermined force. shrinks between the punch and the retaining ring to a stress exceeding 1 yield limit, after which the metal begins to move and the nozzle cavity fills the cavity from the opposite wall i. By virtue of which, in the deformation zone, the stress of all-round compression is maintained throughout the whole deformation process. At the final moment of deformation, the p-ring stops, the force on the punch is improved, and the final shape of the two-way pipe is calibrated. In this case, the wall may also be thickened around the nozzle in order to further increase the strength of the product in the nozzle area. Claim 1. A method of producing double-sided pipes on flat and curved walls of products from a preformed one-way pipe, followed by axially displacing a portion of its metal with the calibration of a hole to form a pipe on the other side of the product wall, characterized in that to increase the height of the double-sided pipe, the movement of the metal is carried out by pressing on the end of the existing one-way pipe and at the same time creating a back pressure by sliding backwater in place of the end of the newly formed pipe.

2. Method POP.1, characterized in that, in order to obtain pipes with small radii of curvature at the end of the inner pipe, mainly in the cases of gate valves, calibration is carried out over the entire surface of the double pipe at the final moment of deformation.

FIG. 2