SU192001A1 - METHOD OF AUTOMATIC REGULATION OF THE GAS CUTTER DISTANCE FROM THE PRODUCT SURFACE - Google Patents

Description

There is a method of automatically stabilizing the distance of the gas cutter from the surface of the product, based on the use of electrical sensors that are in direct contact with the product and distance-ix from it at some distance (nugfnmer, sensor; in the form of a low-induction coil 11 11O1) and acting on the executive body.

The proposed method differs from the known effect of the use and interference of radio waves radiated by a source and reflected from the surface of the product. The advantages of the proposed method are that the radiators can be quite remote from the cut point, therefore, the effect of heating on the stabilization accuracy is excluded.

In addition, one radiator having a high directional effect, weakens the edge effect.

The drawing shows a scheme for automatically adjusting the distance of the gas cutter from the surface of the product according to the proposed method.

The generator / microwave three-centimeter range using a horn antenna 2 emits radio waves, directed to the place of cut. The reflected radio waves through the horn antenna 3 are received in reception 4 of the three-centimeter microwave range. In the receiver, it is the addition of radio waves that came directly from the generator through the device due to the attenuation of the signal, and the reflected radio waves. The amount of attenuation is chosen equal to the attenuation of the surface from the surface of the product.

When the cutter distance changes from the surface of the product, the amplitude of the resulting sigal changes, depending on the phase of the emitted and reflected signals. The result of the 1 signal is output from the output of the 4 to the comparison device 6, where it is compared with the specified voltage.

In the static signal, the signal coming from the comparison device 6 to the usnlitel 7 is equal to "O.

When the cutter distance changes from the product surface, the amplitude of the signal from the comparison device 6 to the amplifier 7 changes. Depending on the sign of the signal from the output of the comparison device 6 transmitted through the amplifier 7, the executive engine 8 and the gearbox 9, the gas cutter 10 and hard the horn antennas associated with it are moved up or down, and the distance from the cutter to the product remains almost unchanged.

Subject invention

The method for automatically adjusting the distance of the gas cutter from the surface of the product, at which the distance is adjusted by changing the working signal acting on the actuator,

By the fact that, in order to improve the quality of the cut, eliminate the temperature effect on the control accuracy, the working signal is obtained as a result of the interference of the radio waves directed from the surface of the product.