SU1373463A1 - Die for stamping parts of axe type - Google Patents

Description

(21) 4040303 / 25-27

(22) 02/18/86

(46) 02.15.88. Bul № 6

(71) Voronezh Production Association for the Production of Heavy Mechanical Presses and the Izhstal Production Association. 50th anniversary of the USSR

(72) V.I. Avilov, V.I. Burdin, A.I.Goncharov, N.N.Kokhan, P.M.Shenko and L.Ya.Makshanov

(53) 621.73 (088.8)

(56) USSR Author's Certificate No. 1063526, cl. B 21 J 13/02, 1982.

(54) STAMP FOR STAMPING OF ITEMS OF THE TYPE OF AX

(57) The invention relates to the processing of metals by pressure, in particular to the design of dies for stamping parts such as an ax. The purpose of the invention

material saving and increased productivity. For this, the stamp is equipped with a horizontal movement mechanism of the mandrel in the form of a housing mounted on the bottom plate with a crankshaft, a system of levers and a mandrel connected to the upper plate by means of a rocker coupling with a detachable stone, as well as a slider moving in the horizontal direction. Dorn is installed in the slider with the possibility of relative vertical movement and is spring-loaded relative to it. The bottom matrix is made of two spring-loaded parts. The design ensures the formation of the product by extrusion, which saves the material of the workpieces while increasing productivity by providing the possibility of using automation equipment. 5 il.

(L

00

with

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05

with

The invention relates to the processing of metals by pressure, and, in particular, to tools for hot forging.

The purpose of the invention is to save material by using extrusion and increasing the productivity of punching by enabling the use of technological process automation tools.

Figure 1 shows the proposed stamp for stamping an ax, a closed position, a slit; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 2; figure 4 - section bb in figure 1-, fig.Z - section GG in figure 2.

The stamp for stamping the ax contains the upper 1 and lower 2 plates with the clamps 3 and the checks 4 fixed to them with the upper matrix 5 and the lower half matrix 6, respectively. The lateral part 7 of the lower half matrix 6 is fixed on the guide bolts 8 placed in the horizontal openings of the half matrix 6 and spring-loaded springs 9. The stamp also contains a clamp 10 of the workpiece position, pressed by the spring 11, as well as a horizontal movement mechanism for the mandrel 12 consisting of the body 13 with the cover 14 and 15 fixed in the bottom plate 2 in the bore of th mounted in bushings 16 and 17 of the crankshaft 18, articulated with the upper plate 1 by a lever 19, fixedly mounted on it, the axis 20, link 21 and the finger 22 mounted in the bore

Punching the workpiece 30, holding the non-stampable end part, is carried by an automated transfer device (not shown) and is placed on the bottom matrix 6 and a clamp 10 fixed by the spring 11. When the die is closed, the link 21 connects the horizontal transfer mechanism 12 with the top plate 1, the lever 19 and the shaft 18 unfold (the full stroke of the closing of the punch angle of the lever and shaft gates is 00 k, moving the stone 23 along the radius of the crank 18, slips into the slot of the slider 25, moves the latter along the guide 26 to the forging creek. Dorn 12, closed captured in the floor of the bush 25 on the axis 27, goes through the hole of the blank, which, when e is supported on the side wall of the dies 6, and then enters the groove, is made in the same wall, at this time the matrix 5 touches the blank, and the ridge 25 - the side part 7 of the lower die 6. In the remaining stamping, stamping takes place; it is time to extrude the metal in the blade web with a partial draft of the lot; the workpiece under the action of the vertex of the die 5 precipitates and fills the engraving of the lower half-matrix 6, and the mandrel 12 moves down together with axis 27 carrying it, squeezing p 35 live 28, and the retainer is lowered, the pr-lobe force of PRZ. 1 1, up to the stop on the die holder plate (not showing the slide 25 at the same time, overcoming the spring force 9, laterally

the top plate 1 and with the help of a rocker dO part 7 of the matrix 6 with guides

A joint made with a detachable stone 23 placed in an open groove 24, a horizontally movable horizontal tension 25 mounted on a guide 26. Dorn 12 is mounted in a slide 25 on a vertical axis 27, with a spring-loaded spring 28, and a nut 29 fixed on it.

The stamping of the billet 30 of the ax on the stamp is performed as follows.

In the initial position, the top plate 1 with the matrix 5, the lever 1 9 and the shaft 18 are turned to the extreme positions by a link 21 fixed in the top plate 1 on the finger 22, the lateral part 7 of the matrix 6 is spring out from it by a certain amount. Heated to temperature

0

five

0

Punching the blank 30, holding the non-stampable end part, is transferred by an automated transfer device (not shown) and placed on the lower matrix 6 and the clamp 10 lifted by the spring 11. When the die closes, the link 21 connects the horizontal movement mechanism of the mandrel 12 to the upper plate 1, rotates lever 19 and shaft 18 (for the full stroke of the stamping arm, the angle of rotation of the lever and shaft makes an angle 00 which, moving along the radius R of the crank 18, the stone 23, sliding in the slot of the slider 25, moves the latter along the guide 26 to the die Dorn 12, fixed in a slant 25 on axis 27, passes through the opening of the workpiece, which then rests on the side wall of the die 6, and then enters the groove made in the same wall, at this time the upper die 5 touches half of the bottom 7 of the lower die 6. On the remainder of the closing of the die, the ax is stamped out of the metal in the direction of the web with a partial draft of the web, the blank under the action of the upper die 5 precipitates and fills the engraving of the lower half of the matrix 6, while mandrel 12 eremeschaets down together with its supporting shaft 27, compressing pru- 5 live 28 and retainer is lowered against the force of the RPP. 1 1, up to the stop on the stamp holder plate (not shown), at the same time the slider 25 moves, overcoming the force of the spring 9, the lateral

five

0

bolting and crimping the edge of the workpiece. When the upper plate 1 is lifted, the upper matrix 5 rises, is stamped with a latch 10 and springs 11 and 28 is lifted from the engraving of the lower matrix 6, and when the slider 25 moves away, the mandrel 12 is held in the stream, resting on the side 7 of the matrix 6. Dorn 12 comes out of the hole

a blank that is captured by the automated transfer device and transferred to the next operation, after which the stamping cycle is repeated.

For the horizontal movement mechanism of the mandrel, the swing angle of the lever 19 (which is equal to the angle of rotation of the shaft 18) is chosen constructively and refined depending on the radius R of the crank shaft, the stroke of the H punch and the stroke L of the mandrel by changing the length of the swing arm 19 or other specified quantities

Claims (1)

Invention Formula A stamp for stamping parts like an ax, containing an upper plate with an upper matrix fixed on it and a lower plate with a lower matrix, a mandrel, as well as a workpiece retainer, characterized in that, in order to save metal and increase productivity, it is equipped with a horizontal mechanism 1 to ; / V (,  1 thirty movement of the mandrel, made in the form of a body mounted on the bottom plate with a crankshaft connected to the upper plate by means of a system of levers and the mandrel by means of a rocker coupling with a detachable stone, as well as horizontally movable slider, the mandrel being installed in a slider with the possibility of relative vertical movement and is spring-loaded relative to it, and the bottom of the matrix is made with a vertical connector, with one of its parts are installed in guides and spring-loaded relative to the other. 29 2it / J 13 17 2 Z2 FIG B- B FIG. four. 20 gd ar, s