SU937084A2

SU937084A2 - Die for incomplete cutting and folding cut portions of sheet material

Info

Publication number: SU937084A2
Application number: SU802975711A
Authority: SU
Inventors: Владимир Андреевич Романенков; Нина Климентьевна Иванова; Владимир Васильевич Мищенко
Original assignee: Предприятие П/Я М-5339
Priority date: 1980-08-26
Filing date: 1980-08-26
Publication date: 1982-06-23

Description

Изобретение относитс к обработ- ке металлов давление и может быть использовано дл изготовлени теплообменных устройств, в частности радиаторов охлаждени полупроводниковых приборов.The invention relates to the treatment of metals and the pressure can be used for the manufacture of heat exchangers, in particular, radiators for cooling semiconductor devices.

По основному авт. св. 848124 известен штамп дл надрезки и отгибки надрезанных участков листового материала содержащий два многолезвийных инструмента, лезви которых установлены с заданным шагом с -возможностью попарного взаимодействи между собой, ограничены плоской и профильной поверхност ми и осна1вены режущими кромками, лежащими на пересечении этих поверхностей, причем шаг между парами лезвий равен сумме толщин лезвий, составл ющих паруси толщины обрабатываемого материала, а одна из режущих граней каждого лезви выполнена с наклонным участком , расположенным в плоскости, перпендикул рной плоской грани лезви 1 .According to the main author. St. 848124 a stamp is known for notching and bending the notched sections of sheet material containing two multi-blade tools, the blades of which are installed with a predetermined pitch with — the possibility of pairwise interaction with each other — are limited to flat and profiled surfaces and equipped with cutting edges lying at the intersection of these surfaces, and the pairs of blades are equal to the sum of the thicknesses of the blades constituting the sail of the thickness of the material being processed, and one of the cutting edges of each blade is made with an inclined section located dix in a plane perpendicular to the flat face of the blade 1.

Однако штамп осуществл ет за один ход пресса только нарезку и скручивание надрезанньгх участков, а дл отгибки скрученных участков пол углом к плоскости заготовки требуетс еще один штамп.However, the stamp performs only cutting and twisting of the notched sections in one press stroke, and one more stamp is required to bend the twisted sections of the field with an angle to the workpiece plane.

Цель изобретени - повышение производительности путем осуществлени за один ход пресса дополнительно отгибки скрученных участков под углом к плоскости заготовки.The purpose of the invention is to increase productivity by additionally bending the twisted sections in one stroke of the press at an angle to the plane of the workpiece.

Поставленна цель достигаетс тем, что штамп снабжен гибочнь пу10 ансоном, неподвижно св занным с одним из многолезвийных инструментов, и гибочной матрицей с выталкивателем, рабочий торец которого выполнен с выступами,.расположенными между лез15 ви ми другого многолезвийного инструмента .This goal is achieved by the fact that the stamp is provided with a flexible anson, fixedly connected with one of the multi-blade tools, and a bending matrix with an ejector, whose working end is made with protrusions located between the blades of the other multi-blade tool.

На фиг.1 изображен штамп, общий вид (слева - в исходном положении, справа - в момент окончани операций Fig. 1 shows a stamp, a general view (on the left - in the initial position, on the right - at the moment of the end of operations

Claims

20 notching, twisting and bending); figure 2 - lower tool, top view; on fig.Z - notching areas in the scan; figure 4 - twisting sections in the scan; in FIG. 5, 25 bends the twisted portions in the scan; figure 6 is a section aa in figure 1; 7-9 - upper blade; 10-12 - lower blade with bending matrix; on Fig.13 - ready radiator 30 tor. The stamp contains clips 1, in which the upper 2 and lower 3 multi-blade tools are mounted. In the lower holder 1, a flexible matrix 4 is installed, the working end of which is made with projections 5 located between the blades of the lower multi-blade tool 3, and the same extractor with a safety device 7. In the upper multi-blade tool, a bending punch 8 is installed, in the hole of which is mounted the spring 9, which is spring-loaded 10. The straps are also provided with buffer 11, which interacts with the ejector b. The bending beam 4 has a radius r and is made in one piece with the lower multi-blade tool 3. The pitch between the pairs of interacting blades of the lower and upper multi-blade tools 2 and 3 is equal to the sum of the thickness of the blades that make up the pair and the thickness of the workpiece 12. All blades have inclined parts ki 13 with angle d, sharpening angles p, scy and radius R of the stamping. The stamp works as follows. The blank 12 (Fig. 1) is placed on the ejector b and the safety device 7. When the upper tool moves down, the blades 2 and 3 start the nadree: billet and (FIG. 3), with further movement of the blade 2 and 3, the incised sections are turned around their longitudinal axes with the ground sections R. The twisted sections are then exposed to the bending tools 4 and 8 (Fig. 5). The final calibration is performed in the lowest position of the upper tool (Fig. 1). Thus, in one working stroke, a piece 14 is obtained from a round or rectangular billet. The technical and economic efficiency of the invention is determined by the possibility of increasing productivity in the manufacture of products such as semiconductor cooling radiators. Claim of the Invention Stamp for notching and bending the notched sections of sheet material according to ed. St. W 848124, characterized in that, in order to increase productivity by additionally bending cK | It is equipped with a bending punch fixedly connected with one of the multi-blade tools and a bending matrix with an ejector, the working end of which is made with projections located between the blades of the other multi-blade tool. Sources of information taken into account in the examination 1. USSR author's certificate I 848124, cl. B 21 D 37/08, B 21 D 53/04, 09/29/78.