SU108908A1 - The method of measuring the size of rotating parts - Google Patents

Description

Methods for controlling the dimensions of rotating parts known in measurement technology do not guarantee sufficient control accuracy, since the beating of parts usually causes additional errors.

The proposed method of measuring rotating parts according to the invention is free from this drawback.

The essence of this method is that the bracket, for example, with two capacitive sensors, is moved in a direction perpendicular to the axis of the part until a predetermined gap between one of the sensors and the part is reached, after which this sensor gives a pulse to another sensor that measures instantaneously. Shchina gap between it and the part.

FIG. Figure 1 shows schematically the sensor gauge when the diameters of the rotating parts are measured; on (jjiir. 2 - the same, when measuring their ledges; in Fig. 3-skeleton diagram of the electronic part of the device for carrying out this method.

For example, capacitance sensors 2 and J are mounted on the bracket /, for example. During the monitoring process, rotating

details of the bracket with the interchangeable sensors in the direction of the arrow I so that the gaps A and B between the sensors of the controlled part 4 are changed. Sensor 2, when it reaches a predetermined gap A between it and the part, gives a pulse to another sensor 3, instantly measuring the size of the gap B between it and the part. Sensor 3 can also deliver a pulse to a sorting device for rejection of a controlled part if, at the time of control, the clearance B is greater or less than the specified allowable limits. . Capacitive sensors operating with the help of an inertialess electronic circuit operate almost instantly and simultaneously, so that the beating of the part during control does not cause additional control.

The electronic circuit is composed of two generators (Fig. 3), 5k.vokcheate.1 pulses, two detectors and a relay.

The operation of the circuit is based on the principle of the beating of two frequencies, one of which depends on the capacitance between one of the sensors and on top of 108908

the work piece is processed, and the friend is preset.

Subject invention

The method of measuring the dimensions of the 1S1, their parts, about the fact that, in order to exclude errors caused by

By moving the part, the ECOB is moved, for example, with two capacitance sensors, in the direction perpendicular to the part’s axis until a predetermined gap between one of the sensors and the part is reached, after which this sensor gives a corresponding impulse to another sensor, instantly measuring y1, its gap and detail.

I-sensor

LL - oatchik

1 - generator