A resistance welding tongs with a fault detection device

Abstract

The invention relates to resistance soldering pliers with a fault detection device, and belongs to the field of resistance welding. The technical problem that for existing soldering pliers, the fault detection device does not exist, when the soldering pliers are abnormal, detection can not be conducted in time, and staff who operate the soldering pliers are not informed in time is solved. The soldering pliers are equipped with the fault detection device which comprises a control module, a current and voltage detection module which is connected with the control module and a cooling water detection module, the current and voltage detection module conducts detection on the current and the voltage of busbar of the soldering pliers, the cooling water detection module conducts detection on the flow and the temperature of cooling water of a transformer of the welding pliers, and the control module records measured values in a build-in hard disk according to a certain regulation. When the control module judges that the measured values are abnormal, the control module controls a warning module to give an alarm. According to the resistance soldering pliers with the fault detection device, detection can be conducted on various working parameters of the soldering pliers, abnormities can be found in time, alarming can be conducted, and the use safety of the soldering pliers is effectively improved.

Description

technical field [0001] The invention relates to the field of welding tongs, in particular to a resistance welding tongs. Background technique [0002] Existing resistance welding machines, in order to ensure the safe operation of the system, are usually equipped with protective devices at the power source, such as in patent CN103273181, the power supply circuit of the electric welding machine is provided with overvoltage and overcurrent protectors. When it is detected that the working voltage or current of the power supply circuit exceeds the safe range, the method of directly cutting off the power supply is used to ensure safety, but for the operator of the welding tongs, it is not possible to know the abnormal work information in advance through the welding tongs to predict the possible failure of the welding tongs in advance Make accurate predictions and take targeted maintenance measures to eliminate potential failures and minimize the impact on production. [0003] In ...

AI Technical Summary

Problems solved by technology

If there is a failure in the cooling water circuit, it will affect the cooling of the transformer, which will cause the temperature of the transformer to rise rapidly and eventually burn out. In the prior art, there is also a lack of a transformer working condition detection device on the welding tongs that can detect abnormal cooling conditions of the transformer.

Images