SU902927A1

SU902927A1 - Die for producing parts from flat blank by wasteless cutting

Info

Publication number: SU902927A1
Application number: SU802956813A
Authority: SU
Inventors: Виталий Юрьевич Кащенко; Иван Александрович Сыч
Original assignee: Производственное Объединение "Ворошиловградский Тепловозостроительный Завод Им. Октябрьской Революции"
Priority date: 1980-07-14
Filing date: 1980-07-14
Publication date: 1982-02-07

Description

(54) ШТАМП ДЛЯ ПОЛУЧЕНИЯ ДЕТАЛЕЙ ИЗ ПЛОСКОЙ ЗАГОТОВКИ ПУТЕМ БЕЗОТХОДНОЙ РАЗРЕЗКИ(54) STAMP FOR OBTAINING DETAILS FROM FLAT PREPARATION BY WASTE CUT

1one

Изобретение относитс к области холодной штамповки листового материала, а именно к безотходной разрезке материала.The invention relates to the field of cold forming of sheet material, namely to waste-free cutting of the material.

Известен штамп, содержащий подвижную и неподвижную плиты, матрицу, пуансон и прижим 1.Known stamp containing movable and fixed plates, the matrix, the punch and the clamp 1.

Недостатком его вл етс невозможность изготовлени деталей типа секторов колец.Its disadvantage is the impossibility of manufacturing parts such as ring sectors.

Ближайшим по совокупности существенных признаков и достигаемому эффекту вл етс штамп дл получени деталей из плоской заготовки путем безотходной разрезки , содержащий неподвижную плиту с расположенными на ней оснащенными режущими кромками чередующимис подпружиненными и неподвижными относительно нее секци ми режущего инструмента, а также содержащий подвижную плиту с расположенными на ней и также оснащенными режущими кромками секци ми, жестко св занными с этой плитой и установленными ад подпружиненными секци ми, закрепленными на неподвижной плите, и подпружиненными секци ми, расположенными между жестко установленными секци ми 2.The closest in the set of essential features and the effect achieved is a stamp for receiving parts from a flat blank by waste-free cutting, containing a fixed plate with alternating spring-loaded and fixed relative to it sections of the cutting tool located on it equipped with cutting edges, and also a movable plate located on it and also equipped with cutting edges sections, rigidly connected with this plate and set hell spring-loaded sections, fixed E on the fixed plate and the spring-loaded sections arranged fixedly mounted between two sections.

Недостатком известного штампа вл етс то, что на нем нельз изготовл ть детали с замкнутым контуром.A disadvantage of the known stamp is that it cannot manufacture parts with a closed contour.

Цель изобретени - обеспечение безотходного изготовлени деталей типа кольцевых секторов.The purpose of the invention is to provide waste-free manufacturing of parts such as ring sectors.

С этой целью штамп, содержащий неподвижную плиту с расположенными на ней оснащенными режущими кромками чередующимис подпружиненными и неподвижными относительно нее секци ми режущего инструмента, а также содержащий подвижную плиту с расположенным на ней и также оснащенными режущими кромками секци ми, жестко св занными с этой плитой и установленными над подпружиненными секци ми, закрепленными на неподвижной плите, и подпружиненными секци ми , раположенными между жестко установленными секци ми, рабочий инструмент, расположенный на каждой из плит, ограничен с внутренней и наружной сторонFor this purpose, a stamp containing a stationary plate with alternating spring-loaded and stationary sections of the cutting tool mounted on it equipped with cutting edges, as well as a movable plate with sections located on it and also equipped with cutting edges rigidly connected to this plate and mounted above the spring-loaded sections, mounted on a fixed plate, and spring-loaded sections located between the rigidly mounted sections, the working tool located on each of the plates is bounded from the inside and outside

Claims

20, a closed loop, each section is made in the form of an annular sector, the section planes of the sections are located along the tool radii, and the cutting edges are located along the plane of the connector, the inner and outer contours. FIG. 1 shows the proposed stamp; in fig. 2 - lower part of the stamp in the plan. The stamp consists of the upper plate 1, on which the upper holder 2 is fixed. In the holder 2, there are two rigidly fixed sections 3 and two spring-loaded sections 4 of the punch, which are pressed into the pushers. Between the spring-loaded sections 4 and the sleeve 2, two elastic buffers 5 are installed, which serve to press and push the preform. The bottom plate 7 is attached to the bottom plate 6, in which two rigidly fixed sections 8 and two spring-loaded matrix sections 9 are placed, which are pushing pushers. Between the spring-loaded sections 9 and the sleeve 7, two elastic buffers 10 are installed, which serve to press and push the parts. The spring-loaded sections 9 of the die are located on the same axis with the fixed sections 3 of the punch, and the stationary sections 8 of the die are located on the same axis with the spring-loaded sections 4 of the punch. When the press ram moves down, the spring-loaded sections 4 and 9 of the punch and die press the workpiece to the fixed sections 3 and 8 due to the force of compressible elastic buffers 5 and 10. With the subsequent movement of the slide down, the cutting edges of the stationary sections 3 of the punch are aligned with the cutting edges of the stationary sections 8 the matrix, while cutting occurs between the spring-loaded sections 4 and 9 and the stationary sections 3 and 8. When the slide is upwards, the finished parts are pushed out by spring-loaded sections 4 of the punch and 9 dies due to the strengthened compressed elastic buffers 5 of the punch and 10 of the dies. The technical advantages of the invention are to provide waste-free cutting of the workpiece, simplify the die design and reduce the labor intensity of its manufacture. A socially useful advantage of the invention is to save sheet material and reduce the cost of manufacturing a stamp. Claims of the Invention A stamp for obtaining parts from a flat blank by waste-free cutting, comprising a fixed plate with alternating spring-loaded and stationary sections of the cutting tool located on it equipped with cutting edges, and a movable plate with sections located on it and also equipped with cutting edge sections, rigidly connected to this plate and mounted above the spring-loaded sections, mounted on a fixed plate, and spring-loaded sections, are located between rigidly mounted sections, characterized in that, in order to ensure non-waste manufacturing of parts such as ring sectors, the working tool located on each of the plates is bounded on the inside and outside by a closed loop, each section is made in the form of a ring sector, the plane of the connector the sections are located along the radii of the tool, and the cutting edges are located along the planes of the connector, the inner and outer contours. Sources of information taken into account in the examination 1.Skvortsov GD. Fundamentals of stamp design for cold sheet punching. M., “Mashchinostroenie, 1972, p. 199, FIG.

2. USSR author's certificate number 239192, cl. 7 C 10, 10.19.67 (prototype).