Automatic compensation system for electrode tip of welding manipulator

Abstract

The invention provides anautomatic compensation system for an electrode tip of a welding manipulator in the field of resistance spot welding for welding a vehicle body. The automatic compensation system comprises the welding manipulator and a welding platform, wherein a compensation plane and a detection switch are also arranged on the welding platform; the detection switch is connected with an automatic lifting control system of the welding manipulator; the heights of the welding manipulator and the top electrode tip arranged on the welding manipulator are automatically controlled through a signal of the detection switch; and the automatic lifting control system of the welding manipulator comprises a current detection and analysis module, an alarm device and an automatic compensation system. The system is safe and reliable in operation, can guarantee that the welding quality of a welding spot of a product meets the technical requirements, can give an alarm for wear of the electrode tip, can realize automatic wear compensation and enters a normal welding program after automatic compensation is finished.

Description

technical field [0001] The invention belongs to the technical field of welding equipment, and in particular relates to an automatic compensation system for electrode tips of a welding manipulator used in the field of resistance spot welding of vehicle body welding. Background technique [0002] The integrated simple welding manipulator based on CNC control system adopts C-shaped welding tongs, which can better ensure the welding quality and reduce labor costs through automatic welding. The upper electrode of the C-type welding tongs is a static electrode. Since the electrode tip is in frequent contact with the workpiece, a certain amount of wear will occur after working for a period of time or after the electrode tip is manually repaired, so that it cannot be in good contact with the workpiece, which affects the welding quality. [0003] Such as figure 1 As shown, the upper electrode head after wear is not on the plane set at the beginning, but due to the characteristics of...

AI Technical Summary

Problems solved by technology

The upper electrode of the C-type welding tongs is a static electrode. Since the electrode tip is in frequent contact with the workpiece, a certain amount of wear will occur after working for a period of time or after the electrode tip is manually repaired, so that it cannot be in good contact with the workpiece, which affects the welding quality.

[0003] like figure 1 As shown, the upper electrode head after wear is not on the plane set at the beginning, but due to the characteristics of the numerical control system, it will still follow the original program. The upper electrode head after wear cannot reach the specified position, so the workpiece cannot be processed. Effective welding, affecting welding quality

[0004] After wear to a certain extent, if the electrode head is not replaced in time, there will be a large number of solder joints that cannot meet the quality requirements, which will affect the quality of the produced products

Images