SU872312A1

SU872312A1 - Pressing speed meter

Info

Publication number: SU872312A1
Application number: SU802861166A
Authority: SU
Inventors: Леонид Евгеньевич Федотьев
Original assignee: Предприятие П/Я В-2996
Priority date: 1980-01-03
Filing date: 1980-01-03
Publication date: 1981-10-15

Description

1one

Изобретение относитс к машиностроению , в частности к конструкции систем управлени оборудовани дл обработки давлением.The invention relates to mechanical engineering, in particular to the design of control systems for pressure treatment equipment.

Известен измеритель скорости прес совани , содержащий импульсный датчик скорости рабочего органа пресса, соединенный с устройством преобразовани и измерени сигналов упом нутого датчика l.A known speed meter comprising a pulse sensor of the speed of a press tool, connected to a device for converting and measuring signals of said sensor l.

Недостатки известного измерител состо т в малой точности измерени на всем диапазоне скоростей рабочего органа пресса, а также необходимости ручного переключени пределов измерени .The disadvantages of the known gauge are low measurement accuracy over the entire speed range of the press tool, as well as the need to manually switch the measurement limits.

Цель изобретени - повышение точности и улучшение условий обслуживани устройства.The purpose of the invention is to improve the accuracy and improve the service conditions of the device.

С этой целью в измерителе скорости прессовани , содержащем импульсный датчик скорости рабочего органа пресса, соединенный с устройством преобразовани и измерени сигналов упом нутого датчика, последнее выполнено в виде блока автоматического выбора диапазонов скоростей, формирователей калиброванных импульсов и коммутатора, а также управл емых коммутатора и делител напр жени ,.To this end, in the extrusion speed meter, which contains a pulsed speed sensor of the press working unit, connected to a device for converting and measuring signals from the said sensor, the latter is made in the form of an automatic speed range selection unit, calibrators of calibrated pulses and a switch, as well as a controlled switch and divider tension,

вход которого соединен с выходом иминтегратора , соедийенного через управл емый коммутатор с вьосодами форf мирователей калиброванных импульсов, входы которых подсоединены к выходу импульсного.датчика скорости рабочего органа пресса, причем входы . блока автоматического выбора диапа .- зонов скоростей подключены к выходам формирователей калиброванных импульсов и импульсного датчика скорости рабочего органа пресса, а выход соединен с управл емыми коммутатором и делителем напр жени .the input of which is connected to the output of an iintegrator connected via a controlled switch with the fords of globalizers of calibrated pulses, the inputs of which are connected to the output of a pulsed sensor of the speed of the press working unit, and the inputs. The unit for automatic selection of speed ranges is connected to the outputs of the drivers of calibrated pulses and the pulse sensor of the speed of the press tool, and the output is connected to the controlled switch and voltage divider.

15 На чертеже приведена функциональна схема устройства.15 The drawing shows the functional diagram of the device.

Измеритель содержит импульсный датчик 1 скорости рабочего органа пресса, устройство 2 преобразовани и измерени сигналов импульсного датчика 1, блок 3 автоматического выбора диапазонов , формирователи 4 калиброванных им- пульсов, управл емый коммутатор 5, интегратор 6 и управл емый делитель 7The meter contains a pulse sensor 1 of the speed of the working member of the press, a device 2 for converting and measuring signals from the pulse sensor 1, a unit 3 for automatic selection of ranges, drivers 4 for calibrated pulses, a controlled switch 5, an integrator 6 and a controlled divider 7

25 напр жени .25 voltage.

Claims

The number of drivers 4 and the number of key inputs of the switch 5, depending on the type of pulse sensor used, varies in. limits from 4 to 15, which corresponds to the overlap of all possible press speeds from 0.02 to 100 mm / sec. The speed meter works as follows. The signal from the pulse sensor 1 is fed to the drivers of 4 pulses, calibrated in duration to c1 amplitude, each driver 4 has its own fixed pulse duration. In block 3, the automatic range selection compares the pulse period of pulse sensor 1 with the pulse width of driver 4. If the pulse period of pulse sensor 1 is less than the pulse width of driver 4, a switch is generated in switch 5 that the integrator b switches from this driver 4 to the next . Simultaneously coman-. Yes, the switching goes to the controlled voltage divider 7, where the voltage dividing ratio is established, corresponding to the given range. If the period of the pulses of the sensor -1 is longer than the duration of the shape of the body 4, then the switch switches the input of the integrator 6 from this shape of the body 4 to the previous one. Thus, the circuit allows automatic switching of the ranges, as well as ensures that the integrator works in a small range of variation of the duty cycle of the pulses arriving at its input, which gives better quality integration of the pulse voltage at low and medium frequencies of the pulse sensor. Better integration increases the accuracy of the measurement and increases the speed of the meter. Claims An extrusion speed sensor containing a pulse sensor for the press working tool connected to a device for converting and measuring signals from said sensor, characterized in that, in order to improve accuracy and improve service conditions, the device for measuring a pulse sensor is filled block automatic selection of speed ranges, form-. calibrated pulses and a switch, as well as a controlled switch and a voltage divider, whose input is connected to the output of an integrator connected via a controlled switch to the outputs of calibrated pulse shapers, whose inputs are connected to the output of a press working element pulse transmitter, selection of speed ranges connected to the outputs of the drivers of calibrated pulses and a pulse sensor speed of the working body of the press, and the output is connected to the pack equal to the switch and voltage divider. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 330075, cl. B 30 B 15/16, 11.11.70