SU1000742A1

SU1000742A1 - Device for measuring large-size part diameters

Info

Publication number: SU1000742A1
Application number: SU813349826A
Authority: SU
Inventors: Юрий Федорович Учаев
Original assignee: За витель (,54 ) УСТРОЙСТВО ДЛЯ ИЗМЕРЕНИЯ ДИАМЕТРОВ КРУПНОГАБАРИТНЫХ ДЕТАЛЕЙ
Priority date: 1981-10-23
Filing date: 1981-10-23
Publication date: 1983-02-28

Description

Изобретение относитс к измерительной технике и может быть использовано дл контрол размеров деталей , например, при обработке их на металлорежущих станках.The invention relates to a measurement technique and can be used to control the dimensions of parts, for example, when processing them on metal cutting machines.

Известно устройство дл измерени диаметров деталей, содержащее измерительный ролик, узел измерени угла поворота детали, импульсный датчик, селектор импульсов и счетчик Ll Недостатком устройства вл етс необходимость использовани измерительного ролика и св занна с этим сложность конструкции.A device for measuring the diameters of parts, comprising a measuring roller, a node for measuring the angle of rotation of the part, a pulse sensor, a pulse selector and an Ll counter, is known. A disadvantage of the device is the necessity of using a measuring roller and the associated design complexity.

Наиболее близкое к предлагаемому устройство дл измерени диаметров крупногабаритных деталей содержит 3аписывакщую и воспроизвод щую головки , установленные на фиксированном рассто нии одна от другой, подключенный к записывающей головке генератор , электронный ключ, соединенный с генератором, и счетчик, св занНый с выходом электронного ключа 1,2.Closest to the proposed device for measuring the diameters of large parts contains three recording and reproducing heads mounted at a fixed distance from one another, a generator connected to the recording head, an electronic key connected to the generator, and a counter connected to the output of the electronic key 1, 2

Недостатком данного устройства вл етс сложность конструкции, св занна с наличием генератора перестраиваемой частоты. Кроме того требуетс механическа св зь блока измерени угла поворота с измер емойThe disadvantage of this device is the design complexity associated with the presence of a tunable frequency generator. In addition, the mechanical connection of the angle measurement unit with the measured

деталью, вследствие чего устройство трудно выполнить переносным, что суживает его функциональные возможс ности.detail, as a result of which the device is difficult to carry out as portable, which reduces its functionality.

Цель изобретени - упрощение устройства и расширение его функциональных возможностей.The purpose of the invention is to simplify the device and expand its functionality.

10 Поставленна цель достигаетс тем, что в устройстве, дл измерени диаметров крупногабаритныхдеталей, содержащем записывающую и воспроизвод щую головки, установленные на ; фиксированном рассто нии одна от дру гой, подключенный к записывающей гбловке генератор, электронный ключ, соединенный с генератором, счетчик, св занный с выходом электронного ключа, генератор выполнен импульсным 10 The goal is achieved by the fact that, in a device for measuring the diameters of large-sized parts, containing a recording and reproducing heads mounted on; a fixed distance one from the other, a generator connected to the recording glue, an electronic switch connected to the generator, a counter connected to the output of the electronic switch, the generator is made pulsed

20 неуправл емым, преобразов.атель угла поворота выполнен в виде цепи, состо щей из последовательно соединенных триггера, второго электронного ключа, второго счетчика и генератора 20 uncontrolled, the angle-of-rotation converter is made in the form of a chain consisting of a series-connected trigger, a second electronic key, a second counter, and a generator

25 счетных импульсов, последний подключен к вторым входам первого и второго электронных ключей, ,а воспроизвод ща головка св зана с входом триггера и третьим входом первого 25 counting pulses, the latter is connected to the second inputs of the first and second electronic keys, and the reproducing head is connected to the trigger input and the third input of the first

Claims

30 electronic key. The drawing shows a device diagram. The device contains a recording 1 and a reproducing 2 heads, a generator 3 connected to a recording head 1 and an electronic key .4, a trigger connected in series .5, a second electronic key 6 connected to the inputs of both keys, a generator 7 counting pulses, counters 8 and 9, connected to the corresponding electronic keys, and a dividing unit 10 at the output of the counters. The device works as follows. When turned on, the starting pulse from Generator 3 is fed to the input of the key 4, opening it, and to the recording head 1, which records this signal on the surface of the part 11. As the part rotates, the portion with the recorded signal passes by the reproducing head, the signal is reproduced and The key 4 enters / completes the input, closing the last key. When the key is open, 4 counting pulses from the generator 7 counting pulses are received through the key 4 to the counter 8, where the number of counting pulses is fixed.pul Ra.it where the distance between heads 1 and 2; V is the linear velocity of the surface of the part; angle of speed; part radius; the period following the counting pulses. At the same time, the impulse from the head 2 goes to the trigger 5, which generates a pulse at the output, opening the electronic key b. After one revolution of the part, the head 2 again reproduces the signal, which arrives at the trigger 5 and transfers it to the initial state. In this case, the electronic key b is closed. With the open key b, the generator 9 receives counting pulses from the generator 7, as a result of which the counted number of pulses is equal to m - - 2 Read N; and N2, it is possible to determine the diameter of the part lR f 15 f. If it is necessary to directly determine D, the signals with Nj and N go to dividing unit 10, where the diameter value is calculated in accordance with the expression (.3). Block 10 division can generally be eliminated if the generator 7 counting pulses to adjust the value of f. Then, in the measurement process, T is set such that the ratio DB is met. 1y; -When this D NO, i.e. the readings of the second counter 9 are directly equal to the value of the diameter of the workpiece D 2R. Thus, in the proposed device, a measurement of the diameter of the part is provided without direct mechanical connection of the device with the axis of rotation of the part. The invention The device for measuring the diameters of large parts, containing a recording and reproducing heads installed at a fixed distance from one another, connected to the generator, electronic key connected to the generator, counter associated with the output of the electronic key, different The fact that, in order to simplify the device and expand its functionality, the generator is pulse-shaped uncontrollable, the angle of rotation converter is made in the form of a circuit, consisting of series-connected flip-flop, the second electronic key, the second counter and the count pulse generator, po.sledny connected to second inputs of the first and second electronic switches, and the reproducing head is coupled to the input of the flip-flop and a third input of the first electronic key. Sources of information & tion taken into account in the examination 1. Ivanov B. i.H. Measurement of linear dimensions using a rolling test. M., Mechanical Engineering, 1973, p. 7

2. USSR author's certificate number 602771, cl. G 01 B 7/12, 1976. (Prototype).