SU930182A1

SU930182A1 - Device for checking magnetic cores

Info

Publication number: SU930182A1
Application number: SU803008153A
Authority: SU
Inventors: Юлий Александрович Невский; Евгений Владимирович Голубев
Original assignee: Предприятие П/Я В-2080
Priority date: 1980-11-24
Filing date: 1980-11-24
Publication date: 1982-05-23

Description

Изобретение относится к магнитным измерениям и может быть использовано для проверки разъемных сердечников, например, П-образной формы в условиях их массового производства.The invention relates to magnetic measurements and can be used to test detachable cores, for example, U-shaped in the conditions of their mass production.

Известно устройство для проверки ^sП-образных магнитных сердечников, содержащее механизм загрузки проверяемых сердечников, эталонный замыкатель с намотанной на каркасе измерительной обмоткой, механизм подачи сердечников, состоящий из толкателя, совершающего возвратно-поступательное движение по направляющим, дискриминатор, управляющий электромагнитом сортировки [1 3·A device for checking ^s U-shaped magnetic cores, comprising a loading mechanism for the tested cores, a reference closure with a measuring coil wound on the frame, a core feeding mechanism consisting of a pusher reciprocating along guides, a discriminator that controls the sorting electromagnet [1 3 ·

Недостатками этого устройства являются низкая точность и малая производительность .The disadvantages of this device are low accuracy and low productivity.

Известно также устройство для конт^ роля магнитных сердечников, содержащее механизм загрузки проверяемых сердечников, измерительную обработку проверяемого сердечника, пружинный эталонный замыкатель, механизм подачи сердечников, состоящий из толкателя, перемещаемого в направляющих двигателем через кулачок, дискриминатор, первый выход которого соединен с электромагнитом сортировки, бункеры годных.и бракованных изделий £2].A device is also known for controlling magnetic cores, comprising a mechanism for loading test cores, measuring processing of a test core, a spring reference closure, a core feeding mechanism consisting of a pusher that is moved in the guides by a motor through a cam, a discriminator, the first output of which is connected to a sorting electromagnet, suitable and defective bunkers £ 2].

В процессе работы устройства проверяемый сердечник подается на измерительную позицию, подводится к пружинному эталонному замыкателю,после чего происходит замер параметра сердечника. В зависимости от того, выходит или нет параметр проверяемого сердечника за допустимые пределы, дискриминатор вырабатывает сигналы, управляющие работой отсекателя,который соответственно перекрывает бункеры годных или бракованных сердечников .In the process of operation of the device, the core under test is supplied to the measuring position, fed to the spring reference switch, after which the core parameter is measured. Depending on whether or not the parameter of the core under test goes beyond the permissible limits, the discriminator generates signals that control the operation of the cutter, which accordingly covers the bins of suitable or defective cores.

Это устройство также обладает низкой точностью и малой производительностью, обусловленные тем, что в процессе разбраковки в результате каса^ ния проверяемого сердечника с эталонным. замыкателем происходит истирание последнего, приводящее к изменению магнитного сопротивления. Это требует, в свою очередь, корректировки ₅ порогов разбраковки, что осуществляется в этом устройстве вручную.This device also has low accuracy and low productivity, due to the fact that in the process of rejection as a result of touching the test core with the reference. contactor abrasion of the latter, leading to a change in magnetic resistance. This, in turn, requires adjustment of ₅ rejection thresholds, which is carried out manually in this device.

Цель изобретения - повышение производительности и точности разбраковки. ЮThe purpose of the invention is to increase the productivity and accuracy of sorting. YU

Поставленная цель достигается тем, что в устройство для проверки магнитных сердечников, содержащее механизм загрузки проверяемых сердечников, вблизи которого размещен эталонный замыкатель с измерительной обмоткой, механизм подачи сердечников, соединенный с механизмом загрузки, выполненный в виде толкателя, перемещаемого в направляющих двигателем, а также _мдискриминатор, первый выход которого соединен с электромагнитом сортировки, бункеры годных и бракованных изделий, введены ползун с установленным на нем контрольным сердечником с измеритель- ₂₅ной обмоткой, коммутатор, конденсатор, блок управления и электродвигатель, при этом измерительные обмотки проверяемого и контрольного сердечников подключены к коммутатору, выход которого соединен с первым входом компенсатора, второй вход которого соединен с первым выходом блока управления,’ а выход компенсатора соединен с первым входом дискриминатора, второй вход которого соединен с вторым выходом блока управления, а второй выход дискриминатора подключен к входу блока управления, третий выход которого подключен к коммутатору, двигателю и электродвигателю.The goal is achieved in that the device for checking the magnetic cores, comprising loading mechanism scanned core, near to which is placed a reference closer to the measuring coil, the feed mechanism of cores connected to the loading mechanism constructed as a pusher movable in the guide motor, and _m discriminator, the first output of which is connected to the sorting electromagnet, bunkers of suitable and defective products, a slider with a control core installed on it with zmeritel- hydrochloric winding _25, a switch, a capacitor, and a motor control unit, wherein the measuring coils inspected and control cores are connected to the switch output is connected to the first input of the compensator, a second input coupled to the first output of the control unit, "and the output of the compensator is connected with the first input of the discriminator, the second input of which is connected to the second output of the control unit, and the second output of the discriminator is connected to the input of the control unit, the third output of which is connected to the commutator yell, engine and electric motor.

На фиг. 1 изображена кинематическая схема предлагаемого устройства, на фиг. 2 - положение эталонного замыкателя в режиме калибровки.In FIG. 1 shows a kinematic diagram of the proposed device, FIG. 2 - position of the reference contactor in calibration mode.

Устройство содержит механизм 1 загрузки проверяемых сердечников, пружинный эталонный замыкатель 2, подпружиненный пружиной 3, каркас 4 с намотанной на нем измерительной обмоткой 5. Пружинный эталонный замыкатель 2 размещен на рамке 6, расположенной на площадке 7 измерительной позиции и перемещаемой электродвигателем 8 через кулачок 9· Механизм подачи сердечников состоит из толкателя 10, перемещаемого в направляющих 11 двигателем 12 через кулачок 13, лотка 14, выполненного с продоль ной прорезью в дне и подвешенного через эту продольную прорезь 15 штифтами 16 к нижней хвостовой плоскости толкателя 10, ограничителя 17 заднего хода лотка 14 и пружины 18, поджимающей толкатель 10 к кулачку 13.The device contains a mechanism 1 for loading the cores under test, a spring reference closure 2, spring-loaded with a spring 3, a frame 4 with a measuring coil wound thereon 5. A spring reference closure 2 is placed on a frame 6 located on the platform 7 of the measuring position and moved by the electric motor 8 through the cam 9 · The core feeding mechanism consists of a pusher 10, which is moved in the guides 11 by the engine 12 through the cam 13, the tray 14, made with a longitudinal slot in the bottom and suspended through this longitudinal slot 15 pins 16 to the lower tail plane of the pusher 10, the backstop 17 of the tray 14 and the spring 18, pressing the pusher 10 to the cam 13.

Устройство содержит также ползун 19 с установленными на нем контрольным П-образным сердечником 20 и каркасом 21 с измерительной обмоткой 22, кулачок 23, коммутатор 24, компенсатор 25, блок 26 управления, дискриминатор 27·The device also contains a slider 19 with a control U-shaped core 20 mounted on it and a frame 21 with a measuring winding 22, a cam 23, a switch 24, a compensator 25, a control unit 26, a discriminator 27

Перед площадкой 7 измерительной позиции выполнено окно 28 сброса, которое через отсекатель 29, управляемый электромагнитом 30 сортировки, соединено с бункерами 31 и 32 годных и бракованных сердечников.In front of the platform 7 of the measuring position, a reset window 28 is made, which is connected to the bins 31 and 32 of suitable and defective cores through a cutter 29 controlled by the sorting electromagnet 30.

Измерительные обмотки 5 и 22 проверяемого 33 и контрольного 20 П-образных сердечников, а также третий выход блока 26 управления подключены к коммутатору 24, выход которого соединен с первым входом компенсатора 25· Второй вход компенсатора 25 соединен с первым выходом блока 26 управления, а выход - с первым входом дискриминатора 27, второй вход которого соединен со вторым выходом блока управления. Выходы дискриминатора подключены соответственно: первый - к электромагниту 30 сортировки, второй - ко входу блока 26 управления, который через свой третий выход подключен также к электродвигателю и двигателю 12.The measuring windings 5 and 22 of the tested 33 and control 20 U-shaped cores, as well as the third output of the control unit 26 are connected to the switch 24, the output of which is connected to the first input of the compensator 25 · The second input of the compensator 25 is connected to the first output of the control unit 26, and the output - with the first input of the discriminator 27, the second input of which is connected to the second output of the control unit. The outputs of the discriminator are connected respectively: the first to the sorting electromagnet 30, the second to the input of the control unit 26, which through its third output is also connected to the electric motor and engine 12.

Устройство работает следующим образом.The device operates as follows.

Проверяемый сердечник 33 через окно механизма 1 загрузки поступает на переднюю часть лотка 14, которая в начале цикла проверки находится под этим окном. При включении двигателя 12 последний посредством кулачка 13 приводит в действие толкательThe tested core 33 through the window of the loading mechanism 1 enters the front of the tray 14, which is located under this window at the beginning of the test cycle. When the engine 12 is turned on, the latter drives the pusher by means of a cam 13

10, который совершает возвратно-поступательное движение в направляющих10, which makes a reciprocating movement in the guides

11. При движении толкателя 10 вместе с ним перемещается подвешенный к нему лоток 14, который прекращает свое движение дойдя до касания с краем площадки 7 измерительной позиции. Продолжая от кулачка 13 поступательное движение вперед, толкатель 10 перемещает сердечник 33 с лотка 14 на площадку 7 и прижимает его к эталонному замыкателю 2, после чего происходит проверка сердечника 33· Если параметр сердечника 33 выходит за допустимые пределы, дискриминатор 27 вырабатывает сигнал, который заставит сработать якорь электромагнита 30 сортировки. При этом отсекатель 19 перекроет бункер 31 годных сердечников. Толкатель 10 под действием кулачка 13 и пружины 18 начинает совершать обратное движение. Лоток 14 также начинает двигаться в обратном направлении, освобождая пространство под окном 28 сброса. Пружинный эталонный замыкатель 2 отводит проверенный сердечник 33 с режима проверки. Так как центр тяжести сердечника 33 располагается над окном 28 сброса, то он падает в один из бункеров 31 или 32, в зависимости от результата измерения дискриминатором' 27· Лоток 14 доходит до ограничителя 17 заднего хода и останавливается, а толкатель 10 продолжает свое движение до крайнего заднего положения. При этом передняя часть лотка 14 освобождается и на нее из механизма 1 загрузки устанавливается следующий проверяемый сердечник 33· К этому моменту отсекатель 29 вернется в исходное положение, т.е. перекроет бункер 32 бракованных изделий.11. When the pusher 10 moves, the tray 14 suspended from it moves, which stops its movement when it reaches the edge of the platform 7 of the measuring position. Continuing the forward movement from the cam 13, the pusher 10 moves the core 33 from the tray 14 to the platform 7 and presses it against the reference closure 2, after which the core 33 is checked. If the core parameter 33 is out of range, the discriminator 27 generates a signal that forces trigger the anchor of the electromagnet 30 sorting. In this case, the cutter 19 will block the hopper 31 suitable cores. The pusher 10 under the action of the cam 13 and the spring 18 begins to reverse the movement. Tray 14 also begins to move in the opposite direction, freeing up space under the reset window 28. The spring-loaded reference closure 2 diverts the tested core 33 from the test mode. Since the center of gravity of the core 33 is located above the reset window 28, it falls into one of the bins 31 or 32, depending on the measurement result by the discriminator '27 · Tray 14 reaches the reverse limiter 17 and stops, and the pusher 10 continues its movement to extreme back position. In this case, the front part of the tray 14 is released and the next tested core 33 is installed on it from the loading mechanism 1. At this point, the cutter 29 will return to its original position, i.e. block the hopper 32 defective products.

После проверки определенного коли>5ества сердечников, например 1 тыс. штук, устройство переводится в режим калибровки сигналом с дискриминатора 27, идущим далее в блок 26 управления, который включает двигатель 8. Кулачком 9 эталонный замыкатель 2, размещенный на раме 6, переводится в крайнее правое положение и подводится к контрольному П-образному сердечнику 20. С помощью кулачка 23 ползун 19 приводится в движение и сердечник 20 доводится до касания , с эталонным замыкателем 2. В момент касания сигнал с измерительной обмотки 22 контрольного П-образного сердечника 20 через коммутатор 24 и компенсатор 25 подается к дискриминатору 27, где производится сравнение измерительного сигнала с заданным порогом параметра контрольного П^-образнОго сердечника 33· Сигналом рассогласования, идущим с дискриминатора 27 на компенсатор 25, производится корректировка заданного измерительного сигнала. После этого блокAfter checking a certain number of> 5 sets of cores, for example, 1 thousand pieces, the device is switched to calibration mode by a signal from discriminator 27, which goes further to control unit 26, which turns on engine 8. With cam 9, the standard contactor 2 located on frame 6 is transferred to the extreme the right position and is brought to the control U-shaped core 20. Using the cam 23, the slider 19 is set in motion and the core 20 is brought into contact with the reference closure 2. At the moment of contact, the signal from the measuring winding 22 of the control U-shaped of the core 20 through the switch 24 and the equalizer 25 is supplied to the discriminator 27 which compares the measuring signal with a predetermined threshold, the control parameter P ^- shaped core 33 · error signals coming from the discriminator 27 to the compensator 25, correction is performed a predetermined measuring signal. After this block

182 6 управления посредством двигателя 8 переводит эталонный замыкатель 2 вновь на позицию контроля и устройство начинает работать со скорректированным в компенсаторе 25 измерительным сигналом.182 6 control by means of motor 8 brings the reference contactor 2 back to the control position and the device starts to work with the measuring signal adjusted in the compensator 25.

Предлагаемое устройство позволяет исключить операции ручной калибровки эталонного замыкателя, обладает более высокой точностью измерения благодаря четкой корректировке порогов разбраковки.The proposed device allows to exclude the operations of manual calibration of the reference contactor, has a higher measurement accuracy due to a clear adjustment of the grading thresholds.

Claims

The invention relates to magnetic measurements and can be used to test detachable cores, for example, U-shaped in terms of mass production. A device for testing U-shaped magnetic cores is known, which contains a loading mechanism for tested cores, a reference contactor with a measuring winding wound on a frame, a core feeding mechanism consisting of a pusher reciprocating along guides, a discriminator controlling an electromagnet sorting LI J. The disadvantages of this device are low accuracy and low productivity. It is also known a device for controlling magnetic cores containing a loading mechanism for inspected cores, measuring processing of an inspected core, a spring reference closure device, a core feeding mechanism consisting of a pusher moved in guides through the cam through a cam, a discriminator, the first output of which is connected electromagnet sorting, suitable bunkers, and defective products 1.2. During operation of the device, the inspected core is fed to the measuring position, fed to the spring reference closure, after which the core parameter is measured. Depending on whether or not the parameter of the core being tested is outside the permissible limits, the discriminator generates signals that control the operation of the trimmer, which, respectively, overlaps the bunkers of suitable or defective cores. This device also has low accuracy and low productivity, due to the fact that in the process of screening as a result of kasa ;; 393 neither of the tested core with the reference closure, abrasion of the latter occurs, leading to a change in the magnetic resistance. This, in turn, requires adjustment of the thresholds for screening, which is done manually in this device. The purpose of the invention is to improve the performance and accuracy of screening. The goal is achieved by the fact that 8 a device for testing a magnet (s cores, containing a loading mechanism for tested cores, near which a reference closure with a measuring winding, a core feeding mechanism connected to a pusher moving in guides the engine, as well as the discriminator, the first output of which is connected to the sorting electromagnet; the bunkers of suitable and defective products are inserted a slider with a control core mounted on it with The control winding, the switch, the capacitor, the control unit and the electric motor, while the measuring windings of the test and control cores are connected to the switch, the output of which is connected to the first input of the compensator, the second input of which is connected to the first output of the control unit, and the output of the compensator is connected to the first input of the discriminator, the second input of which is connected to the second output of the control unit, and the second output of the discriminator is connected to the input of the control unit, the third output of which is connected to the switchboard y, the engine and the electric motor. FIG. 1 shows the kinematic diagram of the device according to the invention; FIG. 2 - the position of the reference for mykatel in calibration mode. The device contains a loading mechanism 1 of the tested cores, a spring reference closure 2, spring-loaded spring 3, frame k with a measuring winding 5 wound on it- Spring reference closure 2 is placed on frame 6 located on the measuring position platform 7 and moved by the electric motor 8 through the cam 9- The core feeding mechanism consists of a pusher 10 that is moved in the guides 11 by the engine 12 through the cam 13, the chute 14, made with a longitudinal 4th slot in the bottom and suspended through this longitudinal slot l 15 pins 16 to the lower tail plane of the pusher 10, the limiter 17 reverse tray 14 and the spring 18, pressing the pusher 10 to the cam 13. The device also includes a slider 19 with the control U-shaped core 20 and the frame 21 with the measuring winding 22 installed on it , cam 23, switch 2, compensator 25, control block 26, discriminator 27. In front of the measuring position pad 7, a reset window 28 is made, which is connected to the hoppers 31 and 32 fit and defective hearts via a slam-shutter 29 controlled by sorting electromagnet 30 chnikov. Measuring windings 5 and 22 of the tested 33 and control 20 U-shaped cores, as well as the third output of the control unit 2b are connected to a switch, the output of which is connected to the first input of RoMneHcaTopa 25. The second input of the compensator 25 is connected to the first output of the control unit 26, and the output - with the first input of the discriminator 27, the second input of which is connected to the second output of the control unit 26. The outputs of the discriminator 27 are connected respectively: the first to the sorting electromagnet 30, the second to the input of the control unit 2b, which through its third output is also connected to the electric motor 8 and the motor 12. The device operates as follows. The inspected core 33, through the loading mechanism window 1, enters the front part of tray 1, which at the beginning of the test cycle is located below this window. When the engine 12 is turned on, the latter, through the cam 13, actuates the pusher 10, which reciprocates in the guides 11. During movement, the pusher 10 moves with it the tray T suspended from it, which stops its movement until it touches the edge of the platform 7 measuring position. Continuing from the cam 13 forward movement, the pusher 10 moves the core 33 from the tray I to the platform 7 and presses it against the reference closer 2, after which the core 33 is checked. If the parameter of the core 33 goes beyond the allowed limits, the discriminator 11 generates a signal which will make the measles electromagnet 30 sort. In this case, the cut-off device 19 will overlap the bunker of 3 serviceable servants. The pusher 10 under the action of the cam 13 and the spring 18 begins to perform the reverse movement. Tray I also begins to move in the opposite direction, freeing up space under the reset window 28. The spring reference contactor 2 removes the tested core 33 from the test mode. Since the center of gravity of the core 33 is located above the reset window 28, it falls into one of the bins 31 or 32, depending on the measurement result of the discriminator 27. The Tt tray reaches the back limiter 17 and stops the pusher 10 continues its movement to the extreme rear position. In this case, the front part of the tray 1A is released and the next inspected core 33 is installed on it from the loading mechanism 1. will block bun ker 32 defective products. After checking a certain number i ecTBa of the cores, for example 1 thousand pieces, the device is transferred to the calibration mode by a signal from the discriminator 27. Going further to the control unit 26, which turns on the engine 8. With the cam 9, the reference contactor 2 placed on the frame 6 is transferred to the outermost the right position and is brought to the control U-shaped core 20. Using the cam 23, the slider 19 is set in motion and the core 20 is brought to touch with the reference contactor 2. At the moment of contact, the signal from the measuring winding 22 of the control U-shaped core 20 through the switch 2 and the compensator 25 is supplied to the discriminator 27, where a comparison is performed of the measurement signal with given threshold control parameter U-shaped core 33. The error signals coming from the discriminator 27 to the compensator 25, correction is performed a predetermined measuring signal. After that, the control unit 826 2b by means of the engine 8 transfers the reference contactor 2 again to the control position and the device starts working with the measurement signal corrected in the compensator 25. The proposed device makes it possible to eliminate manual calibration operations of the reference contactor, has a higher measurement accuracy due to a clear adjustment of the screening thresholds. Claims An apparatus for testing magnetic cores, comprising a core loading mechanism, near which a reference contactor with a measuring winding is placed, a core feeding mechanism connected to a loading mechanism, made in the form of a pusher moved in guides by an engine, and a discriminator, the first output of which is connected With a sorting electromagnet, suitable and defective products bunkers, characterized in that, in order to increase productivity and accuracy of screening, it is introduced A slider with a control core with a measuring winding installed on it, a switch, a compensator, a control unit and an electric motor, while the measuring windings of the tested and control cores are connected to a switch, the output of which is connected to the first input of the compensator, the second input of which is connected to the first output of the unit control, and the output of the compensator is connected to the first input of the discriminator, the second input of which is connected to the second output of the control unit, and the second output of the discriminator is connected to the input control unit, the third output of which is connected to the switch, motor and motor. Sources of information, rintye taken into account during the examination 1. The author's certificate of the USSR, cl. G 01 R 33/12, 1971.

2. Authors certificate of the USSR 603927, cl. G 01 R 33/12.