SU1417986A2 - Arrangement of percussive action - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in the engineering industry. The goal is to improve the reliability of the operation of the contactor. The device contains an electromagnet with a bark. A vessel consisting of a dielectric shell and two flanges is fixed at the bottom end of the electromagnet. A thin cylindrical perforated sheath of dielectric non-wettable material is installed between the upper and lower flanges. When the liquid metal level changes, contact between the flanges closes. Parasitic effects of a surge occur on the inside of the vessel, which does not affect the process of changing the level of the liquid metal in the outside. 1 il.

Description

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The invention relates to the processing of metals by pressure, can be used in the engineering industry and is an improvement of the device according to the author. St. No. 1222386.: The purpose of the invention is to increase the reliability and durability of a percussion device by eliminating parasitic splash and droplet formation during immersion and removal of the tip.

The drawing shows the proposed device.

The device contains a solenoid 1, in the cavity of which the stirrer 2 is connected, connected to the rod 3, which closes the contacts 4 and 5 of the contactor of the control circuit of the winding of the electromagnet 6 of the switching mechanism. In the cavity of an electromagnet there is a bark 7, made of a ferromagnetic material and fitted with a spring 8. A vessel 9 is mounted on the bottom end of the electromagnet and includes a shell made of a dielectric material, for example, ceramic, and the top 10 and bottom 11 flanges, between which a cylindrical perforated is installed the shell 12 is made of high-temperature quartz glass, dividing the vessel 9 into the inner and outer parts. The shell 12 is also made of a dielectric non-wettable material. A central hole is made in the upper flange 10, in which the movable bore 7 is placed. The lower flange 11 is connected to the negative pole of the DC source. The vessel 9 is filled with liquid metal 13. The impactor 2 is connected to the fixed element by a spring 14. Anchor 7

it is supplied with a tip 15 from dielectric not wetted material.

The device works as follows. Spring 14 removes the hammer 2 in the extreme left position. The rod 3 closes the contacts 4 and 5. In this case, power is supplied to the winding of the electromagnet and its tip 15 is immersed in the vessel 9 divided by the shell 12 into the inner and outer parts. In this case, the parasitic effects of a burst occur on the inside, which does not affect the process of changing the level of the liquid metal in the outside. When the level of the liquid metal 13 changes, the contact closes

between flanges 10 and I. A current flows through the coil of solenoid 1, the firing pin 2 is drawn into the cavity of the solenoid and accelerates, a blow to the workpiece (not shown). In the process of movement of the striker 2, the rod 3 breaks the contacts 4 and 5. Winding

The electromagnet 6 is de-energized and the measles 7 is removed from the liquid metal 13 by the action of the spring 8, breaking the solenoid winding supply circuit.

The economic effect is achieved for

by improving operating conditions, increasing the reliability and durability of the object under consideration.

Claims (1)

Invention Formula The device percussion action by aut. St. No. 1222386, characterized in that, in order to increase the reliability of the contactor triggering, the activation mechanism is provided with a cylindrical perforated sheath of non-wettable dielectric material installed between the upper and lower flanges coaxially with them.