Types of driving methods for welding robots

The type of driving method for welding robots is closely related to their well-developed motion mechanism, responsive control system, and driving system, which enables them to move in a planned manner. The power of welding robots comes from electricity, hydraulic pressure, or pneumatic pressure. Currently, welding robots in the market mainly adopt three driving methods, namely hydraulic drive, pneumatic drive, and motor drive. Hydraulic drive, that is, the power source drives the oil pump to generate pressure oil, which then drives the hydraulic motor to generate the required power for the machine. There is also pneumatic drive, mostly used for welding robots with switch control and sequential control. Compared with hydraulic drive, pneumatic driven welding robots are easy to reach high speeds due to the low viscosity of compressed air; Due to the ability to use centralized air compressor stations in the factory for gas supply, the power equipment has been reduced; The air medium does not pollute the environment and can work normally at high temperatures; Air is inexhaustible and constantly used, making it cheaper than oil, so the price of pneumatic drive components is lower than that of hydraulic components. Welding robots can also be driven by motors, which can be divided into ordinary exchange motor drive, exchange and DC servo motor drive, and motor drive. With the advancement of material performance, the performance of motors has also improved, making them easy to use. Therefore, the current welding robot drive is gradually being replaced by motor drive. When using a welding robot, the first step is to select the equipment orientation, which includes many high-precision components, especially its control cabinet. In order to avoid adverse effects of environmental factors on welding robots and extend their service life, welding robot equipment should be located as much as possible in waterproof, dry, and dust-free areas.