SU658396A1

SU658396A1 - Linear dimension measuring arrangement

Info

Publication number: SU658396A1
Application number: SU752154446A
Authority: SU
Inventors: Андрей Леонтьевич Дубенец
Original assignee: Научно-Исследовательский И Проектно-Технологический Институт Тяжелого Машиностроения
Priority date: 1975-07-09
Filing date: 1975-07-09
Publication date: 1979-04-25

Description

1one

Изобретение относитс к измерительной технике и может использоватьс при измерении размеров изделий, имеющих гладкие поверхности.The invention relates to a measurement technique and can be used in measuring the dimensions of products having smooth surfaces.

Известно устройство дл измерени ли нейных размеров методом обкатки роликом , в котором дл уменьшени погрешности отсчета уменьшают дискретность импульсов путем умножени частоты импульсов с датчика обкатного ролика 1.A device is known for measuring linear dimensions by a rolling test method, in which, in order to reduce the counting error, the discreteness of pulses is reduced by multiplying the frequency of pulses from the sensor of the rolling roller 1.

Это устройство имеет сложную конструкцию и недостаточную точность измерений.This device has a complex structure and insufficient measurement accuracy.

Известно устройство дл измерени линейных размеров, содержащее датчик обкатного ролика, датчик числа оборотов обкатного ролика,схему управлени ,соединенную входом с Выходом датчика оборотов, канал грубого счета масштабирующих импульсов, выполненный в виде конъюнктора, соединен-, ного входом с выходом датчика обкатного ролика -и с первым выходом схемы управлени , суммирующего счетчика масштабирующих импульсов с цифровой индикацией размера , соединенного входами с выходом конъ юнктора и вторым выходом схемы управлени , и канал точного счета масштабирующих импульсов, соединенный входами с выходом датчика обкатного ролика и вторым выходом схемы управлени |2j.A device for measuring linear dimensions is known, comprising a rolling roller sensor, a rolling roller speed sensor, a control circuit connected to the Output of the speed sensor, a coarse counting channel of scaling pulses, connected to the output of the rolling roller sensor - and with the first output of the control circuit, the summing counter of scaling pulses with a digital indication of the size, connected by inputs to the output of the tuner and the second output of the control circuit, and the channel is exactly on account of scaling pulse inputs connected to the output of the sensor flow forming roller and a second output control circuit | 2j.

Однако это устройство имеет сложную конструкцию н недостаточно надежно в работе .However, this device has a complex structure and not reliable enough in operation.

Целью изобретени вл етс упрощение конструкции и повышение надежности устройства .The aim of the invention is to simplify the design and increase the reliability of the device.

Это достигаетс тем, что канал точного счета масштабирующих импульсов выполнен в виде схемы, состо щей из триггера с раздельными входами, два входа которого соединены с двум выходами схемы управлени , а третий вход - с выходом датчика обкатного ролика, расширнтел импульсов, соединенного входом с выходом триггера с раздельными входами, второго конъюнктора, соединенного входами с выходом расширител импульсов и датчика обкатного ролнка, и реверсивного счетчика масштабирующих импульсов с цифровой индикацией размера , соединенного входами с выходом конъюиктора -и чторым выходом схемы управлени .This is achieved by the fact that the channel for precise counting of scaling pulses is made in the form of a circuit consisting of a trigger with separate inputs, two inputs of which are connected to two outputs of the control circuit, and the third input is connected to the output of a roll-over sensor, a pulse extender connected to the input with an output a trigger with separate inputs, a second conjunctor connected by inputs to the output of a pulse expander and a rolling sensor, and a reversible counter of scaling pulses with a digital indication of the size, a connected input with the output of the conjugator and the second output of the control circuit.

Claims

FIG. 1 shows a functional diagram of the proposed device in FIG. 2 time signal diagram. A device for measuring linear dimensions contains a sensor I for a rolling roller, a sensor for 2 speeds, a rolling roller, a control circuit 3 connected to the output of the sensor 2 turns, a coarse counting channel of scaling pulses connected to the output of the sensor 1 rolling roller and with the first output of the control circuit 3, summing counter 5 scaling pulses with a digital indication of the size connected by inputs to the outputs of the conjunctor 4 and the second higher output of the control circuit 3; and a channel for precise counting of scaling pulses, made in the form of trigger b with separate inputs, two of which are connected to two outputs, control circuits 3, and the third - to the output of a roll-in sensor 1; an expander of 7 pulses connected by an input with an output of a trigger 6 of a co-conjunctor 8 connected by inputs with the outputs of an expander of 7 impulses and a sensor 1 of a roll-in roller; and a reversing counter 9 mass-stabilizing pulses with a digital indication of the size, connected by inputs to the outputs of conjunctor 8 and the second output of the control circuit. The device works as follows .-. When the sensor I of the rolling roller is rolling along the measured surface, voltage pulses fe) i) ut are generated at its output, which are fed to the input of conjunctor 4. From the speed sensor 2, the voltage pulses are fed to the input of control circuit 3. The control circuit 3 generates the zero setting signals on the inputs of the trigger 6 and the counters 5 and 9, and the impulses of the voltage of a woman, whose leading and trailing edges correspond to the beginning and end of the measurement. The pulses of the Uvs voltage are fed to the inputs of conjunctor 4 and trigger 6. The mass-stabilizing pulses Uawu, which forgive the conjunctor 4y, enter the counter 5 with a digital indication and register $ 1. Trigger 6 with the arrival of control signals generates two pulses at the output. B- Moreover, the duration of the first pulse is equal to the time interval ot start the measurement before the receipt of the first pulse after the start of the measurement of the scaling pulse, and the duration of the second pulse is the time interval from the end of the sweep to the arrival of the first after the end of the measurement of the mass-stabilizing pulse. The pulses are supplied to the input of the expander 7 pulses and increase in their duration. Spikes are willows. the output of the expander 7 pulses are fed to the input of the conjunctor 8, the scaling impulse l from the sensor 1 of the roll-in roller arrives at the other time. Scaling immoses Ulvds v.yhoda conjunor 8 are fed to the input of the reversing counter 9 with a digital display and registered with them. At the same time, it should be noted that if the pulses are “expanded by a factor of 10, then as a reversible counter 9 you can use a reversible binary-decimal counter. If, however, these pulses are several times different from lU, then a reversible counter with an adjustable conversion factor should be used as a reversible counter 9. The total measurement result is made up of the readings of the counters 5 and 9. The invention A device for measuring linear dimensions, comprising a rolling roller sensor, a rolling roller speed sensor, a control circuit and connected to the output of the speed sensor, a coarse counting channel of the pulse, made in the form of of a conjunctor connected by an input with an output of a rolling roller sensor and with a first output of a control circuit, a summation of a spreading pulse with a digital indication of size, connected the inputs with the output of the conjunctor and the second output of the control circuit, and the channel for precise counting of scaling pulses, connected by inputs with the output of the rolling roller sensor and the second output of the control circuit, characterized in that, in order to simplify the design and. increase the reliability, the channel of accurate counting of mass-stabilizing pulses is made in the form of a circuit consisting of a trigger with separate inputs, two inputs of which are connected to two outputs of the control circuit, and the third input is connected to the output of a roll-over sensor, a pulse extender connected to the trigger output with separate inputs, a second conjunctor connected by inputs to the outputs of a pulse-sweeper and a rolling roller sensor, and a reversible counter-massing pulse counter with digital indication of the size of the connected input s and a yield conjunctor second output control circuit. Sources of information taken into account during the examination 1. B. Ivanov. N. Measurement of linear dimensions by rolling on a roller. M., “Mechanical Engineering, 1973, p. 11--19.

2.Orlov Yu. E. A method of increasing accuracy when measuring large diameters. “Measuring equipment, 1971, No. 2.