由于采用了一体化焊钳，焊接变压器装在焊钳后面，所以点焊机器人的变压器必须尽量小型化。对于容量较小的变压器可以用50Hz工频交流，而对于容量较大的变压器，工业上已经开始采用逆变技术把50Hz工频交流变为600～700Hz交流，使变压器的体积减少、减轻。焊接机械手,自动焊接机器人

Due to the use of integrated welding tongs, the welding transformer is installed behind the welding tongs, so the transformer of the spot welding robot must be minimized as much as possible. For transformers with smaller capacity, 50Hz power frequency AC can be used, while for transformers with larger capacity, inverter technology has been adopted in industry to convert 50Hz power frequency AC to 600-700Hz AC, reducing and reducing the volume of the transformer. Welding robot

变压后可以直接用600～700Hz交流 电焊接，也可以再进行二次整流，用直流电焊接，焊接参数由定时器调节。目前，新型定时器已经微机化，因此机器人控制柜可以直接控制定时器，无需另配接口。点焊机器人的焊钳，用电伺服点焊钳，焊钳的张开和闭合由伺服电机驱动，码盘反馈，使焊钳的张开度可以根据实际需要任意选定并预置，而且电极间的压紧力也可以无级调节。焊接机器人,6轴机器人,工业机器人

After voltage transformation, welding can be directly carried out using 600-700Hz AC power, or secondary rectification can be carried out using DC power welding. The welding parameters are adjusted by a timer. At present, the new type of timer has been computerized, so the robot control cabinet can directly control the timer without the need for additional interfaces. The welding tongs of the spot welding robot use electric servo welding tongs. The opening and closing of the welding tongs are driven by servo motors, and the encoder feedback allows the opening degree of the welding tongs to be selected and preset according to actual needs, and the clamping force between the electrodes can also be infinitely adjusted. Welding robot, 6-axis robot, industrial robot

电伺服点焊钳具有如下优点：

The electric servo spot welding pliers have the following advantages:

1、焊钳张开度可以根据工件的情况任意调整，只要不发生碰撞或干涉，可尽可能减少张开度，以节省焊钳开度，节省焊钳开合所占的时间。

1. The opening degree of the welding tongs can be adjusted according to the situation of the workpiece. As long as there is no collision or interference, the opening degree can be reduced as much as possible to save the opening degree of the welding tongs and the time required for opening and closing.

2、每个焊点的焊接周期可大幅度降低，因为焊钳的张开程度是由机器人精确控制的，机器人在点与点之间的移动过程，焊钳就可以开始闭合;而焊完一点后，焊钳一边张开，机器人就可以一边位移，不必等机器人到位后，焊钳才闭合或焊钳完全张开后机器人再移动。

2. The welding cycle of each welding point can be significantly reduced, because the opening degree of the welding tongs is precisely controlled by the robot. During the robot's movement between points, the welding tongs can start to close; After welding a little bit, the welding tongs can be opened on one side, and the robot can move on the other side. There is no need to wait for the robot to be in place before the welding tongs close or fully open before the robot moves again.

3、焊钳闭合加压时，不仅压力大小可以调节，而且在闭合时两电极是轻轻闭合，可减少撞击变形和噪声。焊接机械手,自动焊接机器人

3. When the welding pliers are closed and pressurized, not only can the pressure be adjusted, but also the two electrodes are gently closed during closure, which can reduce impact deformation and noise. Welding robot