SU1412875A1 - Pushing device for forging machine - Google Patents

Abstract

The invention relates to the processing of metals by pressure, namely to devices for ejecting forgings from the movable half of the die. The purpose of the invention is to improve the design and increase the reliability of the stamp in operation. In the movable plate of the stamp there is a through groove in which a transverse beam is installed. One of its m ends is pivotally connected to the movable plate, and at its other end there is a pivotally mounted lever with shoulders of different lengths. The transverse beam is installed with the possibility of interaction with the pushers and is spring-loaded with respect to the movable plate. During its upward movement, the lever with a ledge, made on a shoulder of greater length, hooks onto the stop bar of the fixed plate and deflects the transversal block. In this case, the pushers push the forgings out of the upper half of the stamp. Further, the adjustable stops of the movable plate contact the shoulders of a shorter arm length and remove it from the engagement with the fixed plate. The transverse beam is in its original position under the action of the spring, and the ejector is prepared for a new punching cycle. 2 Il. o (l

Description

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The invention relates to the processing of metal with pressure, in particular to devices for ejecting forgings from a movable half.

The purpose of the invention is to simplify the design, construction and increase the reliability of the stamp.

FIG. 1 shows an ejector; in fig. 2 - view A on

FIG. one.

The forging machine punch ejector consists of a transverse beam 1 (Fig. 1) fixed at one end on axis 2 in a movable part 3 having a bearing surface 4. At the other end of the transverse beam on axis 5 there is a double-arm lever 6 with different shoulder lengths, which spring-loaded relative to the transverse beam 1 spring 7.

At the end of the transverse beam 1 connected to the double-arm lever 6, a protrusion 8 is made, limiting the rotation of the double-arm lever 6. In addition, in the movable part 3, spring-loaded pushers 9 are placed with axial movement under the action of the transverse beam 1 (their number is determined constructively) spring 10 for returning the transverse beam 1 to its original position; stops 11 interacting with arm 12 of shorter length (Fig. 2) of lever 6 of adjustable height H (design not shown) to adjust the stroke of the pusher 9 th.

On the stationary part 13 of the device, an abutment strap 14 is attached, which interacts with the shoulder 15 of the shoulder 16 of a greater length of the lever 6. The forgings 17 are located in the engravings of the streams between the movable 3 and the stationary 13 parts.

The device works as follows.

In the initial position after making up the forgings 17 (before pushing out) the movable part 3 is in the lower position. The transverse beam 1 is located horizontally and its bearing surface is in contact with the counter surface 4. The larger arm 16 of the lever 6 with the ledge 15 is buried behind the stop bar 14. The stops 11 are adjusted to a certain height H, which ensures the specified course of the pushers 9.

When the forging machine is idling, the movable part 3 rises. In the initial part of this stroke, the double-arm lever 6 remains stationary. One of the ends of the transverse beam and axis 2 are raised upwards. In doing so, the transverse beam rotates relative to the lever 6, compresses the spring 10 and prevents the spring-loaded pushers 9 from mixing upwardly together with the movable plate 3. The pushers 9 at the end of this section of the course

the forgings 17 are pushed out and they remain in the lower die of the fixed part 13. The working load on the crossbeam I is removed.

During the further upward movement of the movable part 3, the stops 11 press on the smaller arm 12 of the lever 6, rotate it around the axis 5. At the same time, the ledge 15 of the larger arm 16 of the lever 6 comes out of the engagement with the stop plate 14 of the fixed part 13. After the disengagement of the lever 6 and the transverse beam 1 under the action of the spring 10 rises until it comes into contact with the supporting surface 4 of the movable part 3 and together with the latter continues to move upwards.

The larger arm 16 of the lever 6 is engaged with the bar 14 at the end of the working stroke of the forging machine die. At the same time, the fixed part 13 deflects the larger lever arm 16. The spring 7 is compressed, and in the lowest position of the movable part 3, the larger arm 16, with its ledge 15 under the action of the spring 7, engages the thrust plate 14. Next, the cycle of the ejector is repeated.

The use of the proposed top-down device makes it possible to obtain different values of push moves:; depending on their distance to the axis of rotation of the transverse beam, the distance from the transverse beam most distant from the axis of rotation of the pusher even small values of the moving part.

Claims (1)

Invention Formula Vigga,; 1kivayu1a forging machine, containing placed in the through groove of the MOBILE part of the 11), beam with the ability to interact with the working stroke of the movable part of its facing to it with the counter supporting surface of the groove of the second / first part, installed in the movable part with the possibility of with a crossbeam of the river spring with respect to the subpath part1 of the pushers according to the cps. pgamping positions, fixed part as well as tie,: connection of the crossbeam to the fixed part, () For the purpose of simplifying the design and increasing the case, the transverse beam is hinged at one end with the movable part, and the communication unit of the transverse beam with the fixed part is made in the form of a transverse beam mounted at the other end and podprorypepepny relative to her two arm. with unequal shoulder length, while the two shoulders lever is installed with the possibility of limited rotation in the axial plane of the pusher; pj and interaction; WVI with a greater arm length by making a shoulder at its end with projection -vypolnennym in the stationary part, and a shoulder at the length - is attached to the movable part of the adjustable stop. FIG. one Fi &. 2 /five W