JPS577384A - Controlling device for welding machine - Google Patents

Controlling device for welding machine

Info

Publication number
JPS577384A
JPS577384A JP8119180A JP8119180A JPS577384A JP S577384 A JPS577384 A JP S577384A JP 8119180 A JP8119180 A JP 8119180A JP 8119180 A JP8119180 A JP 8119180A JP S577384 A JPS577384 A JP S577384A
Authority
JP
Japan
Prior art keywords
speed
resistance
electric motor
speed setting
controlling device
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP8119180A
Other languages
Japanese (ja)
Inventor
Haruki Ando
Yoshiaki Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP8119180A priority Critical patent/JPS577384A/en
Publication of JPS577384A publication Critical patent/JPS577384A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To make the size of a controlling device small and improve resisting characteristic by applying a speed setting signal to the input terminal of a differential amplifier through a variable resistance and forming the resistance with fixed resistance.
CONSTITUTION: An inversion amplifier 41 conforms the voltage polarity at both ends of a shunt 31 due to load change to the polarity of input terminal of a differential amplifier 3. When an electric motor 7 is rotating under a certain loading condition, the output voltage of the inversion amplifier 41 is adjusted by adjusting a variable resistance 31 so that the number of revolutions does not change even when the load is changed. After this, speed setting input resistance 5 is adjusted to obtain desired number of revolutions corresponding to potential of the speed setting signal 6. the electric motor 7 can be controlled to a fixed speed by the above operation. In this way, the wire feeding speed or welding speed can be controlled simply and surely to a preset speed even when a small-sized electric motor is used.
COPYRIGHT: (C)1982,JPO&Japio
JP8119180A 1980-06-16 1980-06-16 Controlling device for welding machine Pending JPS577384A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8119180A JPS577384A (en) 1980-06-16 1980-06-16 Controlling device for welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8119180A JPS577384A (en) 1980-06-16 1980-06-16 Controlling device for welding machine

Publications (1)

Publication Number Publication Date
JPS577384A true JPS577384A (en) 1982-01-14

Family

ID=13739571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8119180A Pending JPS577384A (en) 1980-06-16 1980-06-16 Controlling device for welding machine

Country Status (1)

Country Link
JP (1) JPS577384A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58199668A (en) * 1982-05-14 1983-11-21 Daihen Corp Control device of welding machine
JPH0195878A (en) * 1987-10-06 1989-04-13 Nippon Steel Corp Gas shielded ac arc welding method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58199668A (en) * 1982-05-14 1983-11-21 Daihen Corp Control device of welding machine
JPH0195878A (en) * 1987-10-06 1989-04-13 Nippon Steel Corp Gas shielded ac arc welding method

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