SU544687A1 - Device for forming and tempering parts - Google Patents

Description

one

The invention relates to equipment for forming and hardening parts in water-cooled dies with heating by high frequency currents, and can be used for ring-shaped parts.

A device for forming and tempering parts is known, comprising an inductor for heating, a stamp for tempering parts and a mixing mechanism, an inductor.

A device for forming and hardening parts, a mechanism for loading and unloading, a heater, a water-cooled die, consisting of a tool and a matrix, and a receiving-transfer device are known.

The aim of the invention is to provide molding and hardening of parts of various sizes.

This is achieved by the fact that in the proposed device the punch is made in the form of an open ring of electrically conductive material connected to a source of high-frequency energy and provided with a magnetic conductor installed in the inner cavity of the ring.

This embodiment of the punch solves the problem of heating and forming ring-shaped parts of various sizes due to their heating across the width of the ring.

FIG. 1 shows the proposed device, a general view; in fig. 2 is a view along arrow A in FIG. one; in fig. 3 shows a section but BB in FIG. 2

The work of the machine is as follows.

An annular billet 1 from a feeder 2 by a gate associated with a pneumatic cylinder is fed

in the receiving-transfer device 3. The workpiece moves along the upper loading slots of the guides 4. The workpiece movement is limited by stops 5 mounted on the guides 4. When the gate of the feeder returns to its initial position, the limit switch is triggered, giving the command for moving the die upwards. moving the matrix upwards its removable 7 enters into the workpiece with its taper part,

lying in the directional guides 4. At the same time, the copier 8 pushes the guides 4 by means of the rollers 9, and the workpiece is placed on the shoulders 10. Further movement of the matrix 6

upward, the workpiece is placed under a punch, which is made in the form of an open ring 11 made of electrically conductive material, which has a cavity 12 around the perimeter for the circulation of water with inlet 13 and outlet

14 fittings and a base 15 fastened to the electrically insulating base through hollow bolts 16, inside which spring-loaded clamps 17 are installed, and a source of high-frequency energy is connected to the open ring by tires 18, and the magnetic conductor 19 is installed inside the ring.

The distance from the end face of the punch to the workpiece is regulated by lowering or extending from the body of the matrix of the conical filler 7 by the nut 20.

In this positioning and uniformly pressing clamps 17, the workpiece is pressed against the collar 10 of the conical puller, which eliminates distortion during heating.

Simultaneously or somewhat earlier, the heating of the chambee formed by the apron 21 of the cuangona and the matrix, the opening of the electromagnetic valve through the pipe end 22 provides a protective atmosphere, which allows to obtain low-oxidative heating and thereby reduce scale formation.

After the time of heating from the time relay has expired, a command is given to move down the punch. The punch, moving downward, with an insulating ring 23 presses the vertex of the conical puller 7 and, compressing the spring 24, embeds the puller into the matrix body, while the workpiece is placed on the matrix matrix and pressed down by the clamps 17. At the subsequent moment, the working end faces of the punch and die are closed .

A hot preform, which acquires a wavy profile, is molded and simultaneously gets quenched due to the rapid removal of heat from it into the body of the punch and die, cooled by water. After the cooling time of the part from the time relay has elapsed, a command is given simultaneously to move the punch up and down the die and to stop the supply of protective atmosphere.

When the matrix is moved downward, the spring 24, unclasping, lifts the decorated spring on its shoulders above its end. At the moment when the rollers 9 during the return stroke begin to move along the bevels of the copier 8, the guides 4 under the action of the spring 25 move closer and catch the formed spring. The matrix goes to its original position, and the formed spring remains lying on the lower slots of the guides. When the matrix reaches its initial position from the limit switch, the command and the subsequent stroke of the feeder gate are given. By moving the new billet to the receiving-transfer device, the gate of the feeder by abutment 26 (see Fig. 1) resets the formed spring to the tray 27, and the next billet is installed on the guides under the die. The quenching cycle is repeated.

Claims (1)

Invention Formula A device for forming and tempering parts, containing a mechanism for loading and unloading, a heater, a water-cooled stamp consisting of a puncheon and a matrix, and a reception-transmission mechanism, characterized in that, in order to ensure the molding and hardening of parts of various sizes, the punch is made in the form of an open ring of electrically conductive material connected to the source of high-frequency energy , and is equipped with a magnetic circuit installed in the inner iolost of the ring. S3 d, - - rzzlj