What are some common mechanical failures and their solutions for motor motor rotor (single station) spot welding machine?
Motor motor rotor (single station) spot welding machine in the operation process may encounter some common mechanical problems and their solutions are as follows:
1、 crimping is not tight:
Reason: It may be that the front and back of the crimping machine is not allowed to adjust the baffle, or crimping mechanism has a problem.
Solution: Check whether the front and back of the crimping machine is correct, while checking the crimping machine crimping mechanism is loose or deformed.
2、the terminal pressure misalignment:
Reason: the terminal clamp is too loose or pressure is not enough, it may also be the delivery speed of the wire feeder is too fast.
Solution: Check the tightness of the terminal clamp, adjust the pressure and lift height, while adjusting the conveying speed of the wire feeder.
3、the cut is too long or too short:
Reason: tool wear or incorrect, resulting in the cutting length of the kerf does not meet the requirements.
Solution: Check the cutter, replace the cutter and cutting tool.
4、air pressure failure:
Reason: crimping machine needs air pressure to drive when working, if there is insufficient air pressure or can not meet the requirements of the fault.
Solution: Check the pressure of compressed air and the smoothness of the airway.
5、pneumatic component failure:
Cause: the pneumatic components such as cylinders in the crimping machine may be damaged or stuck phenomenon.
Solution: Check the pneumatic components whether there is a noise or cylinder journey low speed and other phenomena, if there is a problem, timely replacement or repair.
6、Undue spatter when welding:
Reason: may be a serious oxidation of the electrode head, welding workpiece serious corrosion poor contact, adjust the switch gear is too high, or electrode pressure is too small, welding program is not correct.
Solution: check whether the electrode head oxidation is serious, whether the welding workpiece is serious corrosion poor contact, check whether the adjustment switch is too high, check whether the electrode pressure is too small, whether the welding program is correct.
7、Welding spot indentation is serious and extrusion:
Reason: the current may be too high, the welding workpiece is uneven, or the electrode pressure is too high, the electrode head shape, cross-section is not suitable.
Solution: Check whether the current is too high, check whether the welding workpiece is uneven, check whether the electrode pressure is too high, and whether the electrode head shape and cross-section are suitable.
The above are some common mechanical failures and their solutions that may be encountered by the motor motor rotor (single station) spot welder in the process of welding the commutator hook. In actual operation, fault diagnosis and treatment should be carried out according to the specific situation.
※ If you still can not solve the equipment failure by the above ways and means, please contact the technical specialist of Xinhui Electromechanical Equipment Co., Ltd. through the page chat tool for help.
Case:
Case Description:
When using the spot welder for motor rotor welding operations, encountered the problem of unstable weld quality, specifically manifested in the lack of strength of the weld joints and welding spatter.
Fault phenomenon:
l welding joint strength is not enough: after welding the motor rotor welding joint strength is not up to standard, affecting the performance of the motor.
l Welding spatter: welding process appears undue spatter, resulting in a poor working environment and material waste.
Failure cause analysis:
l Inappropriate welding parameters: It may be due to improper setting of spot welding parameters, such as too high current, too fast welding speed or insufficient electrode pressure.
l Electrode or base material surface is not clean: there is dirt or rust on the electrode or base material surface, resulting in poor contact.
l Poor electrode shape: The electrode is worn out or the shape is not suitable for the current welding operation, resulting in unstable welding.
Solution:
l Adjust the spot welding process parameters: according to the material characteristics and welding requirements, readjust the welding current, welding time and electrode pressure to obtain stable welding results.
l Clean the surface of electrode and base material: Thoroughly clean the surface of electrode and base material to remove oil and rust before welding to ensure good electrical contact.
l Trimming the electrode tip end surface: Inspect and trim the electrode tip end surface regularly to make sure its shape is suitable for welding operation and to reduce spattering.
l Improve the electrode shape: Improve the electrode shape according to the needs of welding operation to reduce welding spatter.
Through the above solutions, the welding quality of the motor rotor spot welder can be effectively improved and the spatter can be reduced to ensure the performance and productivity of the motor.
