SU1480962A1 - Die for multiple working of castings - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular, to devices for trimming castings. The purpose of the invention is to expand the technological capabilities of the stamp. The stamp has a slider mounted on the punches, a puller placed on the retainer, and stops fixed to the die. The working operation can be trimming castings. The casting is placed on the die, fixed with locks and acting on it with punches. The slider punch bevels interact with the chamfers of the stops and squeeze them, cutting off the washers of the castings. As the punches are moved down further, the sliders act on the puller, move it and trim the casting sprues. 7 il.

Description

one

The invention relates to the processing of metals by pressure, in particular to dies for trimming castings, and can be used in instrument and mechanical engineering.

The aim of the invention is to expand the technological capabilities of the device.

FIG. 1 shows a stamp, a general view in the plan; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows the node I in FIG. 2; in fig. 4 - stamp in the open position; in fig. 5 is a view B in FIG. four; in fig. 6 is a sectional view BB in FIG. four; in fig. 7 is a view of the trimmed forging.

A stamp for multi-site trimming of castings consists of a bottom plate 1 on which a mounting plate 2 with a die 3 fixed on it and counter-pressing 4, a top plate 5 to which a puncheon holder 7 with punches 8 is rigidly attached, is mounted on it the lateral sides of which are mounted in the lower part with the possibility of reciprocating horizontal movement of the slider, 9 necessary for holding the stamp in the process of operation

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working parts of the casting, which in addition to parts of a rectangular shape contains washers and a sprue. Two punches 8, facing each other by the working surface 10 and aligned with the holders of the parts, participate in trimming one part.

Each slider 9 has a vertically positioned plate protrusion 11 with an opening for axis 12 and a holder 13 horizontally located in the lower corner closest to the workpiece, and the protrusion and the holder are perpendicular to the side of the slider adjacent to the punch 9. The latter is associated with the punch through the axis 12, which presses the spring 14 and the plate 15 attached to the punch, so that when it is moved, the holder 13 can be placed under the bottom side of the punch. The end face of the slider, facing the part processing area, is made with the upper 16 and lower 17 bevels.

On the matrix 3, the stops 18 are rigidly fixed, each of which has the possibility of interaction through a bevel. 19 with no f4

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there is a bevel 17 of the adjacent slider 9, with the bevels being parallel to each other, and fixtures 20 for orienting parts on the dies 3.

To process one part, it is necessary to install four stops 18, in the process of operating the press, interacting with four adjacent sliders 9.

Between the upper plate 5 and the punch holder 7 there is a traverse 21, held in the upper position by springs 22, each of which with one end is installed in the nest 23 of the traverse and the other in the nest 24 of the punch under the action of the spring 14 make translational movement in the horizontal direction and holders 13 are located under the surface of the cut part 37. At the moment when the holders 13 come out under the surfaces of the parts, the extreme poander holders.

In the punch holder 7, the 1 g sleeves are still in contact with the counter for the vertical guides 4, which is necessary for holding the columns 25, the upper part pressed in with each pair of punches cut

their details. By passing this section, the distance between the pair of dies may increase, detail 37 is kept on the holders 13 of the slide 9 until the tray is discharged from the press. On returning the plate 5 to the extreme upper position, the tray is brought under the dies. The pushers of the press act on the stops 30, the yoke 21 begins to move downwards, as a result of which the springs 22 are compressed, the guide columns 25 with the pullers 26 also move down to the stops the yoke 21 into the punch holder 7. The pullers 26 are bevelled

25

on the yoke 21, and in the bottom part rigidly connected with the pullers 26.

Each puller 26 is positioned between two punches 8, participating surfaces 20 of bones 27 on working surfaces of 10 punches and interacting with their bevels 28 with upper bevels of 16 slider 9, and the bevels of bevel parallel to the slider bevels. In the process of stamping, one puller interacts with the upper bevels of four sliders, located on the sides of the punches, processing one part.

On the outer side of the die, the punches 8 contact the anti-crimpers 4, a., A key 29 is installed between the inner punches 8, which is necessary to prevent the punches from moving when the die is in operation.

On the yoke 21, two stops 30 are pressed into the lower end, the upper part of which is located in the openings 31 of the plate 5, by means of which the pushers of the press act on the yoke.

To the bottom 1 and top 5 plates are fastened with limiters 32 strokes of the slide 33 of the press.

35

28 interact with the upper bevels 16 of the sliders 9, which as a result are secondarily recessed, and then the surface b acts on the surface of the parts 37 and pushes them out of the working area of the punches 8 onto the tray of the press unloading device. In one die cycle, the casting is processed with six parts.

Claims (1)

Claims for multi-part machining Over-machined parts are removed from the workpieces, holding the upper plate with rastey press zone using a tray unlocked cut punches, lower press device (not shown) with a trimmed die plate connected In the lower part of the punch, there are interleaved guiding columns, a clamp of the position of the workpiece, a puller, characterized in that, in order to expand technological capabilities, it is equipped with sliders with upper and lower bevels mounted on punches with the possibility of horizontal reciprocating movement, 5Q frames with chamfers rigidly fixed on the matrix and placed with the possibility of their chamfers interacting with the lower bevels of the said sliders, and the puller is placed on the fixture with the possibility of mutual action with upper bevels polzushek, the latter being provided with horizontally placed with the treated side zagotvki holders. versts for the failure of the waste (washer and sprue). The stamp works as follows. The casting 34 is laid down by the robot arm on the die 3 and oriented by the latches 20. When the upper plate 5 moves down, the stamp closes, the extreme punches 8 interact with the anti-jaws 4, and the sliders 9 lower bevels 17 interact with bevels 19 stops 18 and recessed, with the ends of the sliders 9 facing the workpiece area being at the same level as the working surfaces of the 10 punches 8. In this position of the sliders the punches continue 0 downward movement to the closure of the limiters 32, while the extreme punches 8 are cut off by the washers 35, and the inner punches 8-sprue 36, which fall through the holes of the matrix 3 in a special bunker (not shown) under the press table. When the upper plate 5 moves upward, the stamp opens, the punches 8 rise above the stops 18, while the sliders 9, under the action of the spring 14, make translational movement in the horizontal direction and the holders 13 are located under the surface of the trimmed part 37. At the moment when the holders 13 come out under the surfaces of the parts, the extreme poles g are still in contact with counter pressures 4, which is necessary to restrain 20 their details. By passing this section, the distance between the pair of dies may increase, detail 37 is kept on the holders 13 of the slide 9 until the tray is discharged from the press. On returning the plate 5 to the extreme upper position, the tray is brought under the dies. The pushers of the press act on the stops 30, the yoke 21 begins to move downwards, as a result of which the springs 22 are compressed, the guide columns 25 with the pullers 26 also move down to the stops the yoke 21 into the punch holder 7. The pullers 26 are bevelled five 28 interact with the upper bevels 16 of the sliders 9, which as a result are secondarily recessed, and then the surface b acts on the surface of the parts 37 and pushes them out of the working area of the punches 8 onto the tray of the press unloading device. In one die cycle, the casting is processed with six parts. Claim Form for multi-site processing of billets holding the top plate at times between each other, guiding columns, locking position of the workpiece, puller, characterized in that, in order to expand technological capabilities, it is equipped with sliders with upper and lower bevels mounted on punches with the possibility of horizontal reciprocating movement, chamfered stops, rigidly mounted on the matrix and placed with the possibility of their chamfers interacting with the lower bevels of the said sliders, and the puller is placed on the fixture with the possibility of interacting with the upper bevels of the slider nests, the latter being provided with holders placed horizontally on the side of the bale being processed. 3520 JV 52 T I ii 4 2 318 20 18 30 35 3 2 20 29 36 FIG. 2 8 26 b 33 35 At the press with. 7/13 9, 77 S a M 26 27 9 L- / J shhhh shh. to fie.by Type B / J Th / g Shch J 3V lh 3V Compiled by V. Beschekov Tehred I. VeresKorrektor M. Vasilyeva Circulation 712 Subscription in-in 6 3 B6 I pl J-4 ± 55 37 a / 7