來源：http://www.leblogdejc.com/ 發布時間：2021-08-16 瀏覽次數：
Welding robot is an automatic equipment integrating machinery, computer, electronics, sensors, artificial intelligence and other knowledge. Welding robot is mainly composed of robot body and automatic welding equipment.
1. The main advantages of welding robot are as follows:
① Stabilize and improve welding quality and ensure its uniformity;
② Improve productivity, and the robot can weld for 24 hours;
③ Improve working conditions and be able to work continuously in harmful environment;
④ It can realize medium and small batch welding automation.
Based on the above advantages, welding robot has been widely used in the field of automobile manufacturing and parts. At present, the widely used welding robots belong to a generation of industrial robots, and its basic working principle is teaching and reproduction. Teaching is also called guidance. The user guides the robot and operates it step by step according to the actual task. During the guidance process, the robot automatically remembers the position, attitude, motion parameters and process parameters of each action taught, and automatically generates a program that continuously performs all operations. After completing the teaching, just give the robot a start command, and the robot will accurately complete the operation step by step according to the teaching action.
2. Influence of welding robot, welding positioner and welding fixture on welding production
① Welding robot requires higher positioning accuracy of parts and higher relative position accuracy of weld.
② The positioning of the welding robot before and after the welding fixture must be consistent.
③ Since the workpieces are assembled and welded by multiple simple parts, and the assembly and positioning welding of these parts are carried out in sequence on the welding fixture, their positioning and clamping are carried out separately.
④ Due to the large deflection angle of the welding positioner, the movable manual bolt shall be avoided in the welding fixture as far as possible.
⑤ The welding fixture shall adopt fast compression parts as far as possible, and shall be equipped with a perforated platform.
3. Influence of welding wire on welding process of welding robot
Before welding, the welding robot selects barreled or coiled welding wires according to needs. In order to reduce the frequency of welding wire replacement, it is recommended to directly select barreled welding wire. However, because the wire feeding hose required for barreled welding wire is very long and has large resistance, the requirements for the stiffness and other quality of welding wire are high. At the same time, try to avoid selecting the welding wire with slightly poor copper plating quality, otherwise the copper plating on the surface of the welding wire will fall off due to friction, resulting in the reduction of the volume in the conduit, the increase of resistance during high-speed wire feeding, the welding wire can not be sent out smoothly, resulting in jitter, making the arc unstable and affecting the weld quality.