FIELD: resistance spot welding; mechanical engineering.
SUBSTANCE: welding current interrupter of digital sampler is connected to circuit of primary winding of welding transformer. Current and voltage pick-ups are connected with analog multiplier. Pulse integrator and electric energy number of quantum binary counter are connected in series. Output of binary counter is connected with electric energy current value indication unit and binary-decimal code converter. Input of code comparing unit is connected with binary-decimal code converter and electric energy number of quantum presetting unit. Current pick is made on the base of Rogovsky's belt. Impulse multiplier is used as analog multiplier. The multiplier has to be the source of rectangular-shaped pulses used for controlling current interrupter which is made on base of triac. Current interrupter control unit is connected with one output of pulse multiplier.
EFFECT: improved precision of portioning of heat pulse; widened range of welding current to be measured; improved quality of welding.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ELECTRONIC ELECTRICITY METER | 2000 |
|
RU2190861C2 |
| COULOMBMETER SET | 1997 |
|
RU2120625C1 |
| WELDING CONVERTER USED FOR WELDING BY MEANS OF NON-MELTING ELECTRODE | 2002 |
|
RU2224628C1 |
| APPARATUS FOR CONTROLLING HEAT TREATMENT OF WELDED JOINTS | 0 |
|
SU1458122A1 |
| X-RAY GENERATOR | 0 |
|
SU743241A1 |
| PHASE-TYPE N.C. SYSTEM FOR RESISTANCE WELDERS | 0 |
|
SU642112A1 |
| MULTICHANNEL DEVICE FOR MONITORING TEMPERATURE CONDITIONS OF INCUBATOR | 0 |
|
SU1157528A1 |
| 0 |
|
SU538485A1 | |
| DEVICE FOR AUTOMATIC CONTROLLING BED FOR ROUGHENING SHEET SURFACE | 1990 |
|
RU2009833C1 |
| DEVICE FOR MEASURING FREQUENCY CHARACTERISTICS OF INPUT IMPEDANCE OF INDUSTRIAL ELECTRIC NETWORK | 0 |
|
SU1439512A1 |
