SU715176A1

SU715176A1 - Cut-out die

Info

Publication number: SU715176A1
Application number: SU772441708A
Authority: SU
Inventors: Вячеслав Дмитриевич Черных
Original assignee: Воронежский Ордена Ленина Завод "Электросигнал"
Priority date: 1977-01-07
Filing date: 1977-01-07
Publication date: 1980-02-15

Description

(54) ВЫРУБНОЙ ШТАМП(54) ELBOW STAMP

II

Изобретение относитс к технологической оснастке дл холодной листовой штамповки и может быть использовано в машиностроении.The invention relates to a tooling for cold plate forming and can be used in mechanical engineering.

Известен штамп, содержащий в плоскости ползуна с тыльной стороны матрицы над выталкивателем гидравлический цилиндр с плунжером , служащий дл прижати заготовки к пуансону 1.A stamp is known that, in the plane of the slide, is located on the back side of the die above the ejector, a hydraulic cylinder with a plunger, which presses the workpiece against the die 1.

Однако конструкци штампа сложна и громоздка . Кроме того, позвол ет вырубать из заготовки лишь контур детали.However, the design of the stamp is complicated and cumbersome. In addition, it allows only the contour of the part to be cut from the blank.

Известен штамп дл чистовой вырезки, содержащий в подвижной части пуансон и прижим-съемник , а в неподвижной части - матрицу и выталкиватель, опирающийс нерабочим торцом через промежуточную опору на клин, подвижный в направлении, перпендикул рном направлешш) перемещени подвюкной части штампа 2.A well-cut stamp is known that contains a punch and a puller in the movable part, and in the stationary part a die and an ejector supported by a non-working end through an intermediate support on the wedge, moving in the direction perpendicular to the direction of movement of the pouches 2.

В известном штампе выталкиватель св зан с СПИНОМ через буфер, что не позвол ет Лолучать при вырубке детали с высокой .плоскостностью .In the well-known stamp, the ejector is connected to the SPIN through a buffer, which prevents Loluch, when cutting parts with a high flatness.

С целью .меньшени изгиба при вырубке деталей промежуточна опора выполнена жесткой .In order to reduce bending when cutting parts, the intermediate support is rigid.

На фиг. 1 показан штамп, разрез; на фиг. 2 - то же, вид сверху; на фиг. 3 - вертикальный клин.FIG. 1 shows a stamp, section; in fig. 2 - the same, top view; in fig. 3 - vertical wedge.

На плите 1 штампа закреплен блок, состо щий из неподвижных плит 2 и 3, закрепленных на направл ющих колонках 4, св зывающих блок, и подвижной плиты 5. Между подвижной плитой 5 и опорной плитой 3 в паузу 6 установлен вертакальный клин 7. На неподвижной плите 2 закреплена пуансон-матрица 8 со съемником 9. На плите 5 закреплена матрица 10 с пуансонодержателем 11 и закрывающей A block consisting of fixed plates 2 and 3 fixed on guide columns 4 connecting the block and movable plate 5 is fixed on the punch plate 1 of the punch 6. Between the movable plate 5 and the supporting plate 3, a pitch wedge 7 is installed in the pause 6 plate 2 is fixed punch-matrix 8 with a stripper 9. On the plate 5 is fixed matrix 10 with a punch holder 11 and a closing

Claims

5 with a plate 12. In the matrix window, an ejector 13 is placed, its back side is connected to a rod 14 (rigid support), which interacts with a horizontal wedge 15, which is placed in the guide groove of the support plate 3. The vertical wedge 7 in the center of the working part has a longitudinal cut, which includes the axis of the shaft 14, Behind the base plate 3, a rubber buffer 16 is placed, pulling the matrix back to its original position. The stamp is set on the table 17 press. The shank of the vertical wedge 7 is fixed in the slider 18 of the press. A blank 19 is inserted between the punch-die 8 and the ejector 13 extended from the die 10 from above until it stops. The stamp works as follows. When the press pedal is pressed, the wedge 15 moves in the guide groove of the support plate 3, the action of the wedge 15, the rod 14 through the ejector 13 presses the workpiece 19 to the punch 8. The absence in the chain of the workpiece and the push rod - the spring wedge of the elastic spring parts ensures a rigid clamp of the workpiece during the stamping process. At the same time, the ISlipecca slider is lowered, and with it the wedge 7, which with its bevel informs the horizontal movement of the slab 5, while this matrix 10 cuts the contour of the part and punches the holes. At the moment of cutting, the billet tends to bend toward the ejector. The reverse movement of the rod 14 at this time is prevented by the wedge 15, the skew angle of which is equal to the self-braking force. During the return stroke of the press ram 18, all the movable 4 parts of the stamp occupy the initial position, at the same time the cut part is removed by the puller 9 and falls down. Also, the BiffI3 step moves the workpiece and the cycle repeats. DETAILED DESCRIPTION OF THE INVENTION A punch die comprising in the movable part a punch and a clamp-remover, and in a stationary part a die and an ejector supported by an inoperative end through an intermediate support on the wedge, movable in a direction perpendicular to the direction of movement of the movable part of the stamp, characterized in that In order to minimize the bending of parts during cutting, the intermediate support is rigid. The sources of information taken into account in the examination 1. USSR author's certificate number 391771, cl. B 21 D 28/00, 1968.

2. USSR author's certificate number 522878, cl. On 21 D 28/16, 1974.