SU377733A1 - ALL-UNION Authors. 'L ~ ^' 'ii' - ^ "'™ - ^ °' '* inventions M. E. Barab-Tarle, V. G. Marantsman, M. P. Rashkovich, G. B. Spokoininy and GG B. A. Trostanovsky, I. M. Shestopalov, S. F. Shifrin, and B. I. Shklovsky - Google Patents

Description

one

The invention relates to software systems for controlling machine tools.

A device is known for automatically controlling the movement of the working bodies of machine tools, comprising two master selsins associated with a selsyn sensor, and a sensor for moving the working element.

Simplification of the device is achieved due to the fact that it contains two pairs of phase-sensitive relay amplifiers, the inputs of which are combined in pairs and connected to the corresponding reference selsin, and the common input of one pair of amplifiers is connected to the sensor of the speed of movement of the working element.

FIG. 1 shows a block diagram of the device; in fig. 2 is a schematic diagram of a phase-sensitive relay amplifier, issuing commands to reduce the speed; in fig. 3 - input voltage curves of phase-sensitive relay amplifiers.

The block diagram of the device consists of a positioner 1 of the table position, two master selsins 2, 3, two pairs of phase-sensitive relay amplifiers 4, 5 and 6, 7 with inputs 8, 9 and 10, 11, respectively, and with a common input 12 of amplifiers 6 Е 7 and sensor 13 of the speed of movement of the working body.

FIG. Figure 3 shows curves 14 and 15 of voltage variation at inputs 8 and 9 with points 16 and 17 of issuing commands for reverse; pr ma

18 DC voltage values at input 12 and curves 19 and 20 of the sum signals at the inputs of amplifiers 6 and 7 with points 21 and 22 of issuing commands to reduce the speed. The device works as follows.

The length of the table is set by turning the rotors of the setting registers 2, 3, operating in transformer mode. When the movement of the working body voltage

at the inputs 8, 9, phase-sensitive amplifiers 4, 5 are changed (as shown in Fig. 3, curves 14, 15). At the moment of transition of the rosin of the selsyn-sensor / through the position of matching with the selsyn 2 (point 16), the phase-sensitive

relay amplifier 4 issues a command to reverse to the left. Similarly, at the moment of transition of the rosin of the selsyn-sensor / through the position of matching with the selsyn 3 (point 17), the phase-sensitive relay amplifier 5 outputs

command to reverse to the right.

Commands to reduce the speed in front of the reverse points give out phase-sensitive relay amplifiers 6, 7. The input 10 of amplifier 6 receives a signal from selsyn 2 (curve 14),

and the input // amplifier 7 is the signal from selsyn 3 (curve 15). A common voltage 12 is supplied with a constant voltage proportional to the speed of the working device (direct / 8) from the speed sensor of the movement of the working organ.

Thus, the total signals (curves 19, 20) act on the inputs of the amplifiers &, 7, and the commands to reduce the speed arrive at points 21 and 22.

Subject invention

A device for automatic software control of the working parts of the machine tools, containing two master selsins associated with the selsyn sensor, and a speed sensor for the non-displacement of the working element, characterized in that, in order to simplify the device, it contains two pairs of phase-sensitive relay amplifiers whose inputs are pairwise merged and connected to the corresponding master village. and the common input of one pair of amplifiers is connected to the speed sensor for moving the actuator.

Faye 7

Fig 2