SU741998A1

SU741998A1 - Apparatus for step cutting-out of sheet materials

Info

Publication number: SU741998A1
Application number: SU782622073A
Authority: SU
Inventors: Иван Ефимович Москаленко; Дмитрий Егорович Куртов; Виктор Георгиевич Бураков; Виктор Григорьевич Ануфриев
Original assignee: За витель
Priority date: 1978-05-30
Filing date: 1978-05-30
Publication date: 1980-06-25

Description

1one

изобретение относитс к области обработки металлов давлением и может быть использовано в листоштамповочном производстве при вырезке в листовой заготовке пазов или отверстий сложного контура.The invention relates to the field of metal forming and can be used in sheet stamping production when cutting grooves or holes of a complex contour in a sheet.

Известно устройство дл шаговой вырезки листового материала, содержащее пуансон , св занный с приводом, закрепленные в- корпусе матрицу и упор, установленный под матрицей с возможностью возвратнопоступательного движени 1.A device for step cutting of sheet material is known, comprising a punch associated with an actuator, a matrix fixed in the housing and an abutment mounted under the matrix with the possibility of reciprocating movement 1.

Недостатком известного устройства в- ю л етс невозможность вы-резки участков, имеющих различные конторы.A disadvantage of the known device is the impossibility of cutting sections with different offices.

Цель изобретени - обеспечение возможности вырезки участков.The purpose of the invention is to provide the possibility of cutting out sections.

Это достигаетс тем, что упор выполнен в виде штока, кинематечески св зан- 15 ного с приводом и шарнирно закрепленного на штоке кулачка со стержнем, взаимодействующим с материалом, и снабжен средствами регулировки поворота кулачка, которые могут быть выполнены в виде винта, взаимодействующего с кулачком и смонтированного на корпусе.This is achieved by the fact that the stop is made in the form of a rod, kinematically connected with a drive and hinged on a rod of a cam with a rod interacting with the material, and provided with means for adjusting the rotation of the cam, which can be made in the form of a screw interacting with the cam and mounted on the housing.

На чертеже изображено предлагаемое устройство.The drawing shows the proposed device.

Устройство дл шаговой вырезки листового материала содержит корпус 1, в котором закреплены матрица 2 и втулка 3, внутри которой установлен шток 4. На штоке 4 смонтирован кулачок 5 со стержнем 6 при помощи оси 7, подпружиненный относительно штока 4 пружиной 8. На корпусе 1 установлен винт 9, ограничивающий поворот кулачка 5 вокруг оси 7.The device for step cutting of sheet material includes a housing 1 in which a die 2 and a sleeve 3 are mounted, inside which a stem 4 is mounted. On the stem 4 a cam 5 is mounted with the stem 6 by means of an axis 7, spring-loaded relative to the stem 4 by a spring 8. On the housing 1 is mounted screw 9, limiting the rotation of the cam 5 around the axis 7.

Шток 4 св зан с одним из концов двуплечего рычага 10, установленного на кольце 1 1 с эксцентричной шейкой. На ползуне 12, установленном в корпусе 1, смонтированы пуансрнодержатель 13 с пуансоном 14 и прижим 15. Прижим 15 удерживаетс на ползуне гайкой 16. Между буртом пуансонодержател 13 и буртом прижима 15 установлена пружина 17. Другой конец рычага 10 св зан с ползуном 12.The stem 4 is connected to one of the ends of the two shoulders lever 10 mounted on the ring 1 1 with an eccentric neck. On the slider 12, mounted in the housing 1, the punch holder 13 with the punch 14 and the clamp 15 are mounted. The clamp 15 is held on the slider by a nut 16. A spring 17 is installed between the shoulder of the punch holder 13 and the shoulder of the clamp 15 and connected to the slide 12.

Устройство дл шаговой вырезки листового материала работает следующим образом .The device for step cutting of sheet material works as follows.

Ползуну 12 сообщаетс возвратно-поступательное движение, например, от эксцентрикового вала.The slider 12 is reciprocated, for example, from an eccentric shaft.

Claims

During the course of the slide 12 downward, the clamp 15 presses the material to the die 2, and the lever 10 drives the rod 4 and the cam 5 through the rod 6. The working end of the punch 14 is inclined at an angle to its longitudinal axis equal to 10-30 ° with the top angle located from the opposite side of the feed material. Before the start of cutting by turning the ring 11, a gap is established between the clamp 15 and the rod b no less than the thickness of the material being cut. Upon further lowering of the slider 12, the spring 17 is compressed, and the punch 14 begins to cut the material. The size of the slice is determined by the position of the rod 6. The position of the rod 6 is adjusted by the screw 9. When the slide 12 moves down, the rod 4 also lowers and with it the cam 5 with the rod 6. lowers the cam 5 slides along the screw 9 and rotates around the axis 7. The rod 6 comes under the matrix 2 and does not prevent the removal of chips. During the course of the slider 12 upward, the clamp 15 continues to hold the material on the matrix 2, the rod 6 enters the slotted groove. With the further course of the slider 12 upward clamp 15 releases the material and it is served until it stops. Then the cycle is repeated. When cutting out an internal closed contour, a hole is drilled in the material. By turning the ring 11, the two shoulders lever 10 is set in such a position that the gap between the clamp 15 and the end of the stop exceeds the thickness of the material being cut. The material is introduced into the working area of the device, turning the ring 11 reduces the gap between the clamp 15 and the end face of the stop, and is cut. Claim 1. A device for step cutting of sheet material containing a punch associated with a drive, an array fixed in the housing and an abutment mounted under the matrix with the possibility of reciprocating motion, characterized in that, in order to enable the cutting of sections having different the contours, the stop is made in the form of a rod, kinematically connected with the drive and hinged on the cam shaft with a rod interacting with the material, and provided with means of control, cam rotation.

2. The device according to claim 1, characterized in that the means for adjusting the cam rotation are made in the form of a screw interacting with it and mounted on the housing. Sources of information taken into account in the examination of I. USSR author's certificate No. 578141, cl. B 21 D 28/02, 05.16.75 (prototype).