SU1581424A1

SU1581424A1 - Universal die for trimming angles of sheet parts over circumference arc

Info

Publication number: SU1581424A1
Application number: SU884487742A
Authority: SU
Inventors: Владимир Иванович Варламов; Виктор Николаевич Шипунов; Александр Николаевич Шишканов
Original assignee: Предприятие П/Я А-1046
Priority date: 1988-09-28
Filing date: 1988-09-28
Publication date: 1990-07-30

Abstract

Изобретение относитс к технологической штамповой оснастке и может быть использовано в машиностроении. Цель изобретени - расширение технологических возможностей путем обеспечени обрезки по радиусу углов различных величин раствора. Штамп содержит многоручьевые матрицу 6 и пуансон. Каждый ручей образован двум симметричными участками режущих кромок. Рабочий торец пуансона выполнен криволинейным с расход щимис ветв ми режущих кромок. В направл ющих пазах 13 нижней плиты 11 смонтирована каретка с круговыми направл ющими 15, в которых установлены бегунки 16, несущие ограничительные планки 17. Каретка фиксируетс в заданной рабочей позиции относительно плиты 11, бегунки 16 настраивают по шкале направл ющих 15, болтами 18 и 19 закрепл ют соответственно бегунки 16 и ограничительные планки 17. Обрезаемую деталь размещают на матрице 6 между планками 17, при помощи регул тора хода пуансона настраивают штамп и производ т обрубку по радиусу. 6 ил.The invention relates to a die tooling and can be used in mechanical engineering. The purpose of the invention is the expansion of technological capabilities by providing trimming over the radius of the angles of various values of the solution. The stamp contains multi-matrix 6 and a punch. Each stream is formed by two symmetrical sections of the cutting edges. The working end of the punch is curved with divergent branches of the cutting edges. In the guide grooves 13 of the bottom plate 11, a carriage with circular guides 15 is mounted, in which runners 16 are installed, carrying restrictive bars 17. The carriage is fixed in a predetermined working position relative to plate 11, sliders 16 are adjusted on a scale of guides 15, bolts 18 and 19 respectively, the sliders 16 and the limiting strips 17 are fastened respectively. The trimmed part is placed on the matrix 6 between the strips 17, with the aid of the punch stroke adjuster, a stamp is adjusted and the cutting is performed along the radius. 6 Il.

Description

пP

Фиг. 2FIG. 2

б-б подернутоbb baked

8eight

2727

Фиг. 6FIG. 6

Claims

Claim

A universal stamp for trimming the corners of sheet parts along an arc of a circle, containing a multi-strand matrix fixed to the base 5, each brook of which is made of two symmetric curved sections, a punch with cutting edges, the projection of which onto the matrix mirror is equidistant to the cutting edges of the matrix 10, mobile carriages with bounding bars for the workpiece to be installed in the guide rails of the base, characterized in that, in order to expand technological capabilities by 15 ensuring trimming along with angles of various sizes, the movable carriages are equipped with circular guides and sliders placed in circular guides, the bounding bars are mounted on the sliders with the possibility of installation movement, the working end face of the punch is made curved, and the projection of the cutting edge of each punch groove on the symmetry plane of this stream is formed by an arc, tangents to each point of which are located relative to the matrix at an angle a, determined from the relation:

R H jl H ’where R is the radius of the generatrix of the punch stream; h is the height of the given point of the cutting edge of the punch;

H is the maximum height of the cutting edge of the punch.

FIG.

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