SU89494A2 - Apparatus for controlling machines at spark erosion working of metals - Google Patents

Description

FOR A DEPENDENT AUTHOR'S CERTIFICATE FOR EEZUZHRAUVUN OF MACHINES AT OSHLISHA --- “

METALS ELECTRIC DISPOSAL CONSUMPTION | FCC

Declared January 15, 1950 for Jfe 4I03S-g5-aiATEiiTi.a- “Publication in the Bulletin of the Opening, Ivabre-Shashi ZESKA industrial designs, trademarks and W ti SJlftt

E mainly auth. and 7DOIO Opsan, a method of treating metals with an electric spark skewer and electric spark mill to accomplish this error.

The invention according to the invention relates to automatic regulators of the supply of electrodes S to an electrospark machine. Known designs of Inertia regulators in a short space, due to the time spent on the reverse controller,

 The proposed device eliminates this disadvantage by separating the feeding functions and reversing the regulator "With this procedure, the electrode feed is supplied; EE reversible; - the motor, and the coarse adjustment is made with the aid of the transmission reducer ect; and Work with an Electromagnetic Clutch, controlled by a relaxation generator, working on a neon lamp.

The reverse function, in the case of a short circuit, is performed by a supplementary organ (for example, a solenoid), regulated by voltage, and in the case of a long-term short sump, the relay operating on a neon lamp and the periodically mixing amount of the rotor gap

FIG. 2 is a schematic diagram of the supply device in FIG. 2; a circuit of a wiring electrode;

A circuit of a given circuit of a spark-type device that feeds the working capacitors is active resistance - & and inductance: LI / L o / “Incorporation into the circuit of reactive resistivity in full. Erudite arcing in the working spark spark, using the switch on switching on the capacitors, respectively, short-circuited, e.g.

E.I.SAMETSGAY

Automatic scheduling for a worker at a job, Allowing a Scheme from Eelenapr in IT. The unit is powered from the generator.

2 yrshmi LINE shows the working circuit is the following.

Tal as a neon shmpa has a strictly defined ignition, it is selected as a spindle speed adjuster. This movement is controlled in a sledeed way. The regulator neon lamp L is found through a large e-resistance Hgj, locked with a capacitance S., to a potentiometer Kg, vkdyuchadmu parallel to the skryvom gap (sm.f.).

This part of the process is: 1) c; an oscillator with a discharge lamp, the parameters of which are somewhat altered by the jets of the usual (reduced Hg and uv; shch1ShO 1), Sch-stv tension, connected with the thermal meter, is equal to Melt the ignition of a glowing lamp, that is, and J. Jb will periodically start to wake up, creating control wires for the 2d control pulses, the voltage of which is 4-5 V with the initial length of 0,.

When the voltage on the potentiometer Rr rises, the frequency of the flashes increases, and at a certain voltage, it is constantly warmly. It should be noted that it is single with a voltage that is detected, the tipper: a wolf axis increases in a similar manner, the frequency is more proportional to -low on the potentiometer Kg. The parameters of the circuit are varied, io but in the form of shredded predictions: metric sensitivity, the size of the region of reals in the water, the duration of the response of impulses. This scheme is very strong to resist (yielded., The load of the neo-tampa does not exceed 20% of the total). At the machine’s work, the capacitor Cc blocks the alternating voltage of the booster. Potentiometer.

.-.-.-.,

The theme of the shortcut is such that when the machine tool is used, the charger / cracker / switched on charge carriage makes little noticeable hesitation. . . :: ..,; /

In case of a neon neon, a Pentigrvdyamp, a P & ndTrhmmount, a small appliance is installed, its anodic current is almost an anolousy on its grid, 5 is blocked by a powerful triode-Lcapacion of a high-speed electrodigy1 MjTjiythy-Ptitius of a high-speed electrodigmatic1 MjTjiythy-Pitium of a high-speed electrodig1 neon lamp, the clutch M is turned on, causing the spindle to move downward. The coupling feature is the use of fine-grained abrasive Dysk to increase the friction of the friction between the leading and the leading half-shafts, since the leading 2-3 turns per clay, drive works well. Worn metal cell parts are practically non-existent.

It is known that the current, consumed by a sparking installation, depends on the magnitude of the spark gap CiipH, its coherence and current increases) ,, Consequently, the spivdel goes down until the voltage on the potentiometer

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RI-, more potential is jammed by the galley laiush. If the current is increased so that this ratio is not filled, the clutch is turned off - the switch stops, you can see that the electronics precisely supports a certain oiiD of the current in the working circuit, installed by the potentiometer motor. of two single-phase motors (on the ax shaft) and a mechanical gearbox.

An independent motor continuously rotates one half-slip (drive). The second motor is turned on via a rheostat Sun parallel to the charge resistance.

With an increase in direct current B of the stator winding of the second motor, its rotor, rigidly coupled with the rotor of the first motor, smoothly changes the rotational speed from 1400 rpm to i rpm, and the rotational moment of the motor does not change.

Thus, the rotational speed of the motor depends on the current in the charging circuit.

The e-ect indicator Ls (SS-5) is connected through separating capacitors Cg and Su to the ends of the charging circuit, it is known that the producer of the spark discharge is the greater, the steeper the front of it is. When moving from the skirting region to the arc the steepness of the needle-like discharge decreases sharply, and therefore the potentials, navigating through the separating capacitors Cg and Cg, diminish, and the luminous sector of the lamp L / begins to expand. This shows that the steel consumes an excessively large current and the spark is located on the edge, the inversion between the Escrow region to the arc, i.e. It is necessary to reduce the operating current setting. To So, the electronic indicator allows an objective assessment of the nature of the bits in the spark gap.

Lamps Ls- and Ls are two-anode kenotrons, pitandie, and the kenotron Ig feeds the lamp Lo through one anode and rectifies extracurrents for the electronic indicator through the other.

Protection against short circuits and their elimination (see FIG. 2) is made by briefly raising up the punch (not always the spindle) by 2-2.5 mm with the help of electromagnet 2 fed by the powerful triode Arg.

During normal operation, the triode L is locked if a short circuit occurs, the Lu triode is unlocked and the electromagnet 2 spindles is activated. With deep firmware on the fine-tuning mode, sometimes (very rarely) a single lifting of the spindle is not. breaks the short one, then the relay 5 is triggered on the neon lamp Ld and the co-diode starts to periodically rise and fall (with an amperage of 2-2.5 mm) until the short is broken with the membrane AND

3 oodascals applied preservative ring oil on the camera. This camera is necessary for the deluge that during the work of the machine MOS9T diaphragm halov to get used transformer oil containing the cede in advance of the machine’s operation - this means chassis dust that can very quickly cause the head bearing to fail.

FOVA ZHOZERETENTSH:

. A device for recirculating srashoe n treating metal electrowapping with any other type. & 70010th With a non-reverse motor for supplying an electrode-tool with the i i and aa with the fact that, with intact), ... with the greatest accuracy with the use of an elliptical engine, the gauge is adjusted to the current with the help of an electromagnetic gearbox, and it is accurate from a voltage with the help of an electromagnetic clutch, controlled by a relaxation generator, operating a neon lamp.

2, Device with k., Characterized by temperature and function. In the case of a short shutdown, the ga carries out an additional organ, the solenoid snubber, cut the switch and the voltage, and in the case of a long-term short circuit, the relay operating on the neon lamp is activated, which is randomly changed by the erozone zone.