SU452518A1 - Device for mounting and dismounting dies and maintaining blanks at a given level - Google Patents

Description

one

The invention relates to the field of press-forging equipment.

A device for mounting and dismounting stamps is known, comprising a lifting table provided with an actuator and a mechanism for horizontal movement of the stamps.

In order to increase the reliability of the device in operation in the device proposed, the lifting table drive is made in the form of screws mounted on a fixed base, each of which is equipped with a nut connected by means of a worm gear to the output shaft of an electric motor fixed on said base, and the mechanism of horizontal movement of the dies made in the form of drive hollow rods, equipped with adjustable pins and mounted on movable bars, placed in the direction of ours, made on the lifting table and serving x for the latter compound with desk press, wherein the lifting and working tables installed position catches beams.

The drive of each rod is made in the form of a screw interacting with a nut fixed in the cavity of the rod and connected by means of a mechanical transmission with an individual engine, while limit switches are installed on the lifting table to limit the movement of the rods.

The drawing shows the proposed device, a General view.

The device includes a base 1, a welded structure on which the electric motor 2 is mounted. From the latter, rotational movement through a chain gear is connected to a small gear 3, and then two large gear 4, fixed on two shafts 5. Movement through worm gears located under cover 6 , it is transferred to four nuts, which, synchronously, lift four screws 7 simultaneously and together with it a lifting one hundred eight.

On table 8, guides 9 are made, into which bars 10 are inserted, having direction on the table and providing a rigid bridge between the table of the device and the press working table. The rod 11 of the device movably mounted in the bar x 10.

For fixing each timber in the working position are two clamps 12. One clamp is installed on the table 8, and the other on the table 13 of the press.

Rod 11 is set in motion with

by means of electric motors 14 with gearboxes, chain screws 15 are driven into rotation by means of chain screws 15, which enter inside shtang 11 through nuts 17 pressed in them. Rods 11 have sockets into which a adjustable pin 18 is inserted. For automatic restriction of rod movements 11 are terminal V1 switches 19, on which the rods 11 in the extreme positions turn off the electric motor 14,

The device is installed at a certain distance from the press table 13 on the loading side of the workpiece die so that the upper surfaces of the table 8 of the device and the press table 13 are located in the same plane. After aligning the plane of the table 8, the devices with the table 13 of the press slide out the bars 10 and fix them with the help of clips 12. The stamp 20 is placed on the surface of the table 8. The pins 18 are inserted into the holes of the rods 11, as close as possible to the stamp. The electric motors 14 are turned on. Rotation from the electric motor is transmitted through a reducer by means of a chain transmission 15 by a lead screw 16. By means of a nut 17, the rotational movement of the screws 16 is converted into translational mixing.

rod 11.

Rod 11, slid along the bars m 10, move the stamp 20 in the direction of the press. When the rods 11 reach the switches 19, the electric motors 14 are switched off. After which, by reverse rotation of the electric motors, the rods 11 are returned to their initial positions. From the pin 18 to the stamp 2O install the push bars (not shown in the drawing), with

with the help of which the stamp 20 is sent to the die space of the press.

After unlocking the bars 10, they are returned to their original positions. The removal of the stamp from the press table and its movement outside the press, onto the surface of the device base plate, is carried out in the reverse order. At the same time, they use a ring, woven from a rope, thrown from pins to hooks, with which all operated dies must be equipped. Subject invention

1. A device for mounting and dismounting dies and maintaining blanks at a predetermined level, containing a lifting table equipped with a drive, and a mechanism for horizontal mixing of dies, characterized in that, in order to increase the reliability of the device in operation, the lifting table is designed as mounted on a fixed the base of the screws, each of which is equipped with a nut, connected by means of a worm gear to the output shaft of the electric motor mounted on the said base and the mechanism for the horizontal movement of the pieces mpov designed as a drive of the hollow rod provided with perestavnymi pins, mounted on movable the bars x, placed in guides formed on the lifting table and serving for connecting the latter with desk press, wherein the lifting and working tables installed position catches beams.

2. The device according to claim 1, characterized in that the drive of each rod is made in the form of a screw interacting with a nut fixed in the cavity of the rod and connected by means of a mechanical transmission with an individual engine, while limit switches are installed on the lifting table .