SU846108A1

SU846108A1 - Die for hot forming of compacts

Info

Publication number: SU846108A1
Application number: SU792840469A
Authority: SU
Inventors: Вячеслав Александрович Дронзиков; Валерий Вадимович Воеводин; Александр Николаевич Капицын; Елизавета Ивановна Смышляева; Юрий Иванович Пожидаев
Original assignee: Предприятие П/Я М-5481
Priority date: 1979-11-15
Filing date: 1979-11-15
Publication date: 1981-07-15

Description

(54) ШТАМП ДЛЯ ГОРЯЧЕЙ ШТАМПОВКИ ПОРОШКОВЫХ(54) STAMP FOR HOT PUNCH PUNCHING STABLING

ЗАГОТОВОКPREPARATION

II

Изобретение относите к порошковой метал.чургии, в частности к штампам дл гор чей ппамповки порошковых заготовок.The invention relates to powder metalworking, in particular, to stamps for hot powdered powder blanks.

Известен нотами дл гор чей 1итамповки порошковых заготовок, состо щий из матриц1 1 . пуансонов и выталкива е.п с центр;; . рас оло кен1/1;н иглой |1).Known for hot stamping powder blanks, consisting of matrices 1 1. punches and pushes e.p with center ;; . ras ken1 / 1; n needle | 1).

Недостатком siToio штампа вл етс сниженпе качества деталей за счет окислени з;иоговок в riiioiiecee межоперационноio юриода.The disadvantage of the siToio punch is a reduction in the quality of parts due to the oxidation of the material in the riiioiiece of the interoperative law.

Гапболее б.лизким но технической суш,ноот .и и достигаемому эффекту к предлагаемом} ми,1 етс (итамп дл гор чей штамiioius .ii порошковых заготовок, включающий корпус, матрицу, пуансоны и верхнюю и in/i-:i i(uo нггамновые нлиты. Кроме того, нпамп снабжен выталкивателем с подвижnnfi i if,той 2j.Gapbole more narrow but technical sushi, noot and the effect to be achieved to the proposed one, 1 and (for a hot strain of powder blanks, including body, die, punches and upper and in / i-: ii (uo ngamnovye In addition, the npamp is equipped with an ejector with a movable, if 2j.

К недостаткам данного штампа относ тс снижение качества деталей за счет окис/leiiHH заготовок, трещинообразование на .к-тали и .инструменте вследствие разности температур.The disadvantages of this stamp include a reduction in the quality of parts due to oxide / leiiHH blanks, cracking on the hoist and tool due to temperature differences.

Цель изобретени - повышение качества заготовок.The purpose of the invention is to improve the quality of the blanks.

Дл достижени ностав,ленной цели штамп, включающий корпус, матрицу, пуансоны и верхнюю и нижнюю штамповые плиты, снабжен электронагревател ми, матрица установлена в кольцевой обойме, а корпус с помоидью тарельчатых пружин соединен с нижней плитой с образованием меж.ту ни.ми зазора, причем один из электродвигателей встроен в обойму, а другой размешен в донной чаети корпуса.In order to achieve a goal, a die, including a body, die, punches and upper and lower die plates, is equipped with electric heaters, the die is installed in the ring casing, and the body with the help of disc springs is connected to the bottom plate to form an interstitial gap. , with one of the electric motors built into the holder, and the other placed in the bottom case of the case.

На фиг. I изображен штамп, продольный разрез; на фиг. 2 - форма встроенногоFIG. I depicts a stamp, a longitudinal section; in fig. 2 - embedded form

10ten

в корпус электродвигател , разрез А-А на фиг. 1.into the motor housing, section A-A in FIG. one.

Claims

The rods include the bottom 1 and the top 2 plates, which are fixed relative to each other by columns 3 fixed in the bottom plate and sleeves 4 fixed in the top plate 2. The bottom plate 1 is mounted on the press table, the top 2 is attached to the press ram. On the bottom plate, the body 5 is mounted with the possibility of movement of the smallpox of the stamp by means of up to 20 additional columns of the column 6, about 5 of them; W 7; li of the container 8. Springs 8. On the case 5, the matrix 10 is installed through the intermediate ring 9 , pressed into the conical ring 11. A massive holder 12 is mounted on the ring 11, which is fastened to the body with 5 bolts 13. U-shaped electric heaters 14 are embedded in the holder 12, and a ring electric heater 15 is built into the holder 12. the housing 5 on the plate 16 is installed lower punch 17, which At the same time, the part serves as an ejector from the die cavity 10. M. Between the case and the bottom plate are hardened plates 18 and 19. On the bottom plate, using racks 20, rods 21 and springs 22, fix the yoke 23 of the puller 24, which with the help of a holder 25 and punch holder 26 serves to remove the parts from the rod and to secure the upper punch 27. The ring 28 mounted on the holder 25 serves to reduce the stroke of the rod with the part and quickly remove the part from the rod. Adjusting the position of the puller is carried out by screwing or unscrewing the rod 21 from the rack 20, fixing with nuts 29 and 30. The nut 29 can adjust the spring preload 22. On the top plate 2, the rod 32 is installed. To prevent heat loss in the stamp, heat insulation is installed gasket 33 and the casing 34. The stamp works as follows. The housing 5, the sleeve 12 and the die matrix 10 are heated by electric heaters 14 and 15. The air gap between the housing 5 and the bottom plate 1 is thermally insulated and contributes to a quick and economical heating of the die. After the punch is heated, the porous billet is placed in the cavity of the matrix 10. When the press slider goes down, the product is molded inside the matrix 10, while the body) moves along additional columns 6, compresses the springs 8 and through the plates 18 and 19 transfers pressure to the lower plate 1. During the return stroke of the slide, the body 5 is raised by the springs 8, the part is pushed out of the die cavity by the punch 17 and the press ejector (not shown). In case the part remains on the rod 32, the punch holder 26, abutting its shoulders against the ring 28 and the puller 24, which rests on the nut 29 through the yoke 23, removes the part from the rod. Then the cycle repeats. The proposed stamp will allow to improve the surface finish of the parts, to obtain the same properties both on the surface and inside the part, to avoid cracking of the parts and the tool. Claims of the Invention A stamp for hot stamping of powder blanks, including a body, a die, punches and upper and lower die plates, characterized in that, in order to improve the quality of the blanks, it is equipped with electric heaters, the die is mounted in a ring casing, and the body is made with dish-shaped The springs are connected to the bottom plate to form a gap between them, with one of the electric heaters built into the clip and the other placed in the bottom part of the housing. Sources of information taken into account in the examination 1. USSR author's certificate number 474437, cl. B 30 V 15/02, 1975.

2. USSR author's certificate number 490569, cl. B 22 F 3/02, 1976. 22 2 $ JJJ 77 i 5 3 n 16 IS W 20 21 2d 27 26 J / 25 //. / i5 i2 578