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SU963806A2 - Apparatus for maintaining constant cutting speed at face machining of articles in machine tools - Google Patents

Apparatus for maintaining constant cutting speed at face machining of articles in machine tools Download PDF

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Publication number
SU963806A2
SU963806A2 SU813258995A SU3258995A SU963806A2 SU 963806 A2 SU963806 A2 SU 963806A2 SU 813258995 A SU813258995 A SU 813258995A SU 3258995 A SU3258995 A SU 3258995A SU 963806 A2 SU963806 A2 SU 963806A2
Authority
SU
USSR - Soviet Union
Prior art keywords
articles
cutting speed
machine tools
maintaining constant
face machining
Prior art date
Application number
SU813258995A
Other languages
Russian (ru)
Inventor
Андрей Иванович Павлов
Сергей Васильевич Суярко
Original Assignee
Pavlov Andrej
Suyarko Sergej V
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pavlov Andrej, Suyarko Sergej V filed Critical Pavlov Andrej
Priority to SU813258995A priority Critical patent/SU963806A2/en
Application granted granted Critical
Publication of SU963806A2 publication Critical patent/SU963806A2/en

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  • Automatic Control Of Machine Tools (AREA)

Description

подключен к  корным зажимам электродвигател  главного движени  10, обеспечивающего через редуктор 13 вращательное движение иланшайбе 14 и обрабатываемому изделию 15.connected to the main terminals of the electric motor of the main movement 10, which, through the reducer 13, provides the rotary movement of the flange 14 and the workpiece 15.

Параллельно к  корю тахопенератора 9 обратной св зи подключен потенциометр 16, ВЫ:ХО(Д которого чер1ез 17 соедипен е обмоткой возбуж:дени  8 тахоге ератора 9. Диод 18 включен в цепи выхода уеилител  7, причем встречно с диодом Г/.A potentiometer 16 is connected in parallel with the feedback feedback control coaxial generator 9, YOU XO (D of which 17 is connected by the excitation winding: day 8 of the chopper 9. A diode 18 is connected to the output circuit of the amplifier 7, and is opposite to the diode G /.

При уменьщеиии диаметра обработки, контролируемого датчиком положени  4 уменьщаетс  выходной сигнал преобразовательного каскада 6, а сл1е;довательно, и выходной ток усилител  7, т. е. ток в обмотке возбуждени  8 тахогеиератора 9. Это вызывает увеличение выхг)дного напр лчени  силового усилител  12, что нриводпт к увеличению скорости вращеии  электродвигател  главного движени  10. При соблюдени  пропорциональной зависимости между обрабатываемым диаметром,и потоком возбуждени  тахогенератора скорость резани  будет посто нной до тех пор, пока напр жение на выходе потенциометра 16 не превысит выходного напр жени  преобразовательного каскада. Потенциометр 16 выставл етс  таким образом, чтобы лри максимальном ди аметре обработки и максимальном задании его выходное напр же пе равн лось напр жению на выходе преобразовательного каскада, а скорость вращени  главного электродвигател  была поминальной. Тогда с уменьщением диаметра обработки скорость главного привода не будет измен тьс .When reducing the processing diameter monitored by the position sensor 4, the output signal of the converter stage 6 decreases, and the output current of amplifier 7 decreases, i.e., the current in the excitation winding 8 of the tachometer 9. This causes an increase in the output voltage of the power amplifier 12 that the drive increases the speed of rotation of the main-drive electric motor 10. If the proportional relationship between the diameter being processed and the tachogenerator excitation flow is kept, the cutting speed will be constant until eye voltage at the output of the potentiometer 16 exceeds the output voltage of the converter cascade. Potentiometer 16 is set so that the maximum processing diameter and maximum setting of its output voltage is equal to the voltage at the output of the converter stage, and the rotational speed of the main motor is commemorative. Then, as the machining diameter decreases, the speed of the main drive will not change.

При уменьщенил задающего напр жени  выходное напр жение потеншиометра 16, т. е. напр жение лодпора, автомат чески уменьшаетс , и скорость резани  будет поддерживатьс  посто нной до тех пор, пока скорость вращени  главного электродвигател  ие достигнет номинального значени , что будет иметь место при уменьшении выходного напр жени  усилител  7 до величины напр жени  па выходе потенциометра 16.When the setpoint voltage is reduced, the output voltage of the potentiometer 16, i.e., the voltage of the underdog, automatically decreases and the cutting speed will be kept constant until the rotational speed of the main motor reaches the nominal value, which will occur when decreasing the output voltage of the amplifier 7 to the voltage value of the output voltage of the potentiometer 16.

Применение автоматически регулируемого источника подпора в цепи питани  обмотки возбуждени  8 тахогенератора 9 позвол ет, таки,м образом, надежно защитить главный электродвигатель от недопустимого повышени  скорости вращени .The use of an automatically controlled source of support in the power supply circuit of the excitation winding 8 of the tachogenerator 9 allows, in a manner, to reliably protect the main motor from an unacceptable increase in the rotational speed.

Claims (1)

1. Авторское свидетельство Ло 540720, В 23 О 15/10, 1975.1. Copyright certificate Lot 540720, B 23 O 15/10, 1975. ПP II -f-f
SU813258995A 1981-03-12 1981-03-12 Apparatus for maintaining constant cutting speed at face machining of articles in machine tools SU963806A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU813258995A SU963806A2 (en) 1981-03-12 1981-03-12 Apparatus for maintaining constant cutting speed at face machining of articles in machine tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU813258995A SU963806A2 (en) 1981-03-12 1981-03-12 Apparatus for maintaining constant cutting speed at face machining of articles in machine tools

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU540720 Addition

Publications (1)

Publication Number Publication Date
SU963806A2 true SU963806A2 (en) 1982-10-07

Family

ID=20947138

Family Applications (1)

Application Number Title Priority Date Filing Date
SU813258995A SU963806A2 (en) 1981-03-12 1981-03-12 Apparatus for maintaining constant cutting speed at face machining of articles in machine tools

Country Status (1)

Country Link
SU (1) SU963806A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511826A (en) * 1982-12-18 1985-04-16 Rex Industries Co., Ltd. Control apparatus for metal saw cutter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511826A (en) * 1982-12-18 1985-04-16 Rex Industries Co., Ltd. Control apparatus for metal saw cutter

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