RU2426616C1 - Device to withdraw fragile parts from press working zone - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: invention relates to metal forming. Proposed device comprises frame wherein lifting mechanism displaces. Said lifting mechanism is made up of two aligned tubes. One, outer, tube is provided with rack-type lifting mechanism. Another, inner, tube is provided with additional vertical displacement mechanism made up of drum. Said drum has pins arranged along its circumference. Inner tube is made up of two parts. One, top, part represents barrel with flange atop. Another, support, part has lengthwise cutouts to receive vertical displacement mechanism pins. Both said parts stay in contact via damping spring.

EFFECT: expanded operating performances.

3 dwg

Description

The invention relates to the field of metal forming.

Known as an analogue is the design of the device for removing parts from the working area of the press during stamping (see, for example, AS USSR No. 550206, B21D 45/00, 04/20/1977). The device comprises a frame on which a lifting platform is mounted, carrying a platform for receiving parts from the tray and lifting them with power cylinders. A disadvantage of the known device is: the presence of a horizontal platform that does not allow the guaranteed movement of the part from the press to the site at various technological lengths of the parts.

Of the known designs of devices for removing parts from the working area of the press, the closest in technical essence (prototype) is a device for removing parts from the working area of the press when stamping, containing a frame along which the carriage with the lifting mechanism moves (see RF patent No. 2267375, B21D 45/00, 02.20.2004). This device allows you to accept parts with different technological lengths.

The disadvantages of the known design of the device for removing parts from the working area of the press when stamping them for failure are: the inability to accept brittle parts, as well as the complexity of the design.

The technical result of the proposed device for removing brittle parts from the working area of the press is to expand the capabilities of the device by receiving and removing from the working area of the press any details, as well as simplifying the design.

The technical result of the proposed device for removing brittle parts from the working area of the press is achieved by the fact that the lifting mechanism is made in the form of two concentric pipes, one of which is the outer one equipped with a rack and pinion lifting mechanism, and the other inner one is equipped with an additional vertical movement mechanism mounted on the outer pipe made in the form of a drum equipped with pins around the circumference, while the inner pipe consists of 2 parts, one of which is the upper one, made in the form of a glass with a flange in the top It portion and the other tube - support - has longitudinal slots in which the pins includes moving mechanism, and both sides of the pipe in contact with each other through the damper spring.

The claimed device for removing fragile parts from the working area of the press is shown in the drawings, where

- figure 1 shows the device at the time of receiving an elongated part of a smaller diameter;

- figure 2 - the device at the time of prima short part of a larger diameter;

- figure 3 - the device at the time of receipt of the intermediate part.

A carriage 2 is mounted on the frame 1 with the possibility of horizontal movement, on which a lifting mechanism is mounted, made in the form of two concentric pipes - the outer 3 and the inner, made of two parts - the upper 4 and lower 5. The outer pipe 3 is equipped with a rack mechanism consisting of a rail 6, placed on the outer tube 3, and a gear 7 mounted on the carriage 2. The upper tube 4, made in the form of a glass with a flange 8 in the upper part, has an internal size corresponding to the size of the part 9, having a minimum diameter and m ksimalnuyu length. To ensure the additional stroke of the inner pipe, the manual movement mechanism 10 is mounted on the outer pipe 3, made in the form of a drum 11 with pins 12 radially located on it, which enter the longitudinal slots 13, made on the surface of the lower pipe 5. To fix the movement mechanism 10 in a certain the position there is a pin 14. The upper pipe 4 is supported on the lower 5 through the spring - damper 15.

The operation of the device is as follows.

Before pressing the parts, the device is brought in by the carriage 2 under the press matrix (not shown in the drawing). Using the rack and pinion mechanism 6, the outer pipe 3 is brought under the matrix to its highest position. Depending on the size, the pressed parts are lowered (without impacts) either to the bottom of the upper inner pipe 4, if the part 9 is thin and long, or to the flange 8, if the part 16 is larger and short. To receive parts 17 having intermediate dimensions by means of a manual movement mechanism 10 by means of pins 12, which, when the drum 11 rotates, alternately enter the slots 13, set the necessary height of the inner pipe so that the part smoothly drops to the bottom of the pipe 4 after pressing. To compensate for errors installation of the inner pipe between the support pipe 5 and the upper receiving 4 has a spring damper 15. After receiving the parts by the rack mechanism 6, the pipe together with the product is lowered beyond the base of the press and with the help of the carriage 2 is moved from the nip further pinion mechanism 6 is raised up to retrieve items from the device.

Claims (1)

A device for removing brittle parts from the working area of the press when stamping them into a hole containing a frame along which a carriage with a lifting mechanism moves, characterized in that the lifting mechanism is made in the form of two concentric pipes, one of which is the outer one, equipped with a rack-and-pinion lifting mechanism, and the other, the inner one, is equipped with an additional vertical movement mechanism mounted on the outer pipe, made in the form of a drum equipped with pins around the circumference, while the inner pipe consists of 2 parts, one of which of which the upper one is made in the form of a glass with a flange in the upper part, and the other supporting one has longitudinal slots, which include the pins of the vertical movement mechanism, both parts of the pipe contacting each other through a damping spring.

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