SU667288A2

SU667288A2 - Tube-beading apparatus

Info

Publication number: SU667288A2
Application number: SU772485877A
Authority: SU
Inventors: Владимир Анатольевич Каюшин
Original assignee: Kayushin Vladimir A
Priority date: 1977-05-16
Filing date: 1977-05-16
Publication date: 1979-06-15

Description

(54) УСТРОЙСТВО ДЛЯ ОТБОРТОВКИ ТРУБ(54) PIPING DEVICE

II

По основному авт.св. №642049 известно устройство дл отбортовки Tpj, содержащее смонтированный на станине гидравлический цилиндр , на плунжере которого установлена обойма с размещенной в ней упругой втулкой и пуансоном , состо щим из внутреннего элемента и подвижного относительно него наружного элемента , имеющего на торце плоскую рабочую поверхность , а также матрицу. Это устройство требует об зательного применени матрицы, что усложн ет его конструкцию.According to the main auth. No. 642049, a device for flanging Tpj is known, comprising a hydraulic cylinder mounted on a bed, on the plunger of which a holder is mounted with an elastic sleeve and a punch arranged therein, consisting of an inner element and an outer element movable relative to it, having a flat working surface on the end, as well as the matrix. This device requires the use of a matrix, which complicates its design.

С целью расширени технологических возможностей предлагаемое устройство дополнительно снабжено закрепленным преимущественно на днище рабочего цилиндра упором, ограничивающим перемещение внутреннего злемента пуансона , а на наружной поверхности этого злемента выполнен бурт, ограничивающий перемещение наружного элемента пуансона, причем торцова поверхность наружного элемента выполнена конической .In order to expand the technological capabilities, the proposed device is additionally equipped with a stop fixed mainly on the bottom of the working cylinder, limiting the movement of the inner element of the punch, and a collar is made on the outer surface of this element, limiting the movement of the outer element of the punch, and the end surface of the outer element is made conical.

На фнг, 1 изображено предлагаемое устройство в исходном положении; на фиг, 2 - то жеOn fng, 1 shows the proposed device in its original position; fig 2 is the same

устройство в конце раздачи; на фиг. 3 - то же устройство в конце отбортовки.device at the end of distribution; in fig. 3 - the same device at the end of flanging.

На станине 1 смонтированы рабочий цилиндр 2, упор 3 и установочные элементы, например призмы 4. На плунжере Ь рабочего цилиндра в обойме 6 установлен подвижно пуансон, состо щий из внутреннего злемента 7 и установленного на нем подвижно наружного злемента 8. Съемный упор 9 и бурт 10 ограничивают перемещение элемента 8. Между обоймой 6 и пуансоном установлена упруга , например, резинова втулка 11. Элемент 8 подпружинен относительно обоймы 6. Пуансон удерживаетс на плунжере 5 закрепленным на нем упором 12. На днище рабочего цилиндра закреплен проходащий черезThe work cylinder 2, the stop 3 and mounting elements, for example prisms 4, are mounted on the bed 1. On the plunger L of the working cylinder in the holder 6, there is a movable punch consisting of an internal element 7 and a movable external element 8 mounted on it. Removable stop 9 and a collar 10 limit the movement of the element 8. A resilient, for example rubber sleeve 11, is installed between the casing 6 and the punch. The element 8 is spring-loaded relative to the casing 6. The punch is held on the plunger 5 by a support 12 fixed on it. On the bottom of the working cylinder is fixed odaschy through

его плунжер кронщтейн 13, на котором установлен упор 14, ограничивающий выдвижение пуансона . Между плунжером 5 и упором 14 размещена пружина 15, обеспечивающа вт гивание плунжера 5 внутрь рабочего цилиндра. Наits plunger is a brace 13, on which a stop 14 is installed, limiting the punch extension. A spring 15 is placed between the plunger 5 and the anvil 14, which engages the plunger 5 inside the working cylinder. On

внутреннем элементе 7 пуансона выполненыthe inner element 7 of the punch is made

Claims

a cylindrical surface 16 and a conic surface 17, mated to each other by an end surface 18, the curvature of which is defined in relation to the predetermined radius of conjugation of the collar with the pipe. The element 8 has a conical surface 19, which is a continuation of the surface 17 in the leftmost position relative to the element 7 of the element 8. The conical surface 19 smoothly mates with the end surface 20. Channel 21 serves to supply the working medium to the working cylinder. The device works as follows. In the initial position, when there is no working pressure in the cylinder 2, all the moving elements of the device are in the extreme left position under the action of springs. The pipe 22 to be processed is placed on the priem 4 right end to stop 3. In cylinder 2 I apply working pressure. The plunger, and hence the punch, is extended, resulting in distribution of the pipe. In this case, the force of the plunger 5 is transmitted to the element 7 of the punch through the elastic sleeve 11, which is thereby deformed. The pipe ends when the element 7 is extended up to the stop 14. The resulting collar intersects the pipe, at a given radius, as it is determined by the radius of the surface 18. As the bushing 11 further deforms, the element 8 is advanced as a result of higher working pressure. which transfers to the pipe a formative action in an annular zone adjacent to the interface, resulting from the distribution. There is a selection of S 1 66 2 4 product - the final design of the collar. Since, in this case, a deforming effect is applied on a small shoulder h, the radius of the collar and pipe mating is kept close to the mating radius obtained as a result of the distribution, i.e. to the specified Flanging is completed when the element 8 is extended to the collar 10. When it is completed, the working cylinder 2 is communicated with the drain. Elastic sleeve 11 takes the original form, the movable elements of the device under the action of the springs occupy the initial position, after which the pipe is removed. The invention allows to reduce the labor intensity of the process and increase labor productivity. The invention The device for x) pipe bending according to ed. No. 642049, characterized in that, in order to expand technological capabilities, it is additionally equipped with a fixed predominantly abutment on the bottom of the working cylinder to limit the movement of the inner element of the punch, and on the outer surface of this element there is a shoulder limiting the movement of the outer element of the pierce, with the end surface of the outer element of the punch is made conical. (////// 7 ////.