A welding jig for irregular parts and its welding method

Abstract

The invention provides an irregular part welding jig and a welding method thereof. The irregular part welding jig comprises a base, a clamping device installed on the base, a three-segment bottom electrode disposed in the clamping device, a moving locating plate disposed above the clamping device, an insulation lifting device driving the moving locating plate to move, a top electrode device for auxiliary pressing of an irregular part and an automatic discharging device used for taking the welded irregular part out from a profiling die cavity. The upper surface of the moving locating plate is provided with the profiling die cavity the same as the irregular part in structure. The profiling die cavity is used for locating the irregular part. The upper surface of the moving locating plate is provided with through holes through which segment structures of the three-segment bottom electrode can pass freely in a normally open state. When taking out the welded part after welding, the automatic discharging device automatically moves upward from an unloading hole relative to the moving locating plate and pushes the welded part out from the profiling die cavity of the moving locating plate. The irregular part welding jig and the welding method improve the welding efficiency and the welding quality greatly, realize the intrinsic safety of part welding in the production process, save energy and reduce work intensity.

Description

technical field [0001] The invention relates to a welding jig for parts, in particular to a welding jig for irregular parts and a welding method thereof. Background technique [0002] The welding of irregular parts is common in the auto parts industry. The welding methods and welding machines and fixtures are very different, and the performance and functions are different. The simple, stable and reliable fixture can effectively improve the efficiency of the welding machine and the quality of the welded parts. , improve the working environment, and realize the intrinsic safety of welding machinery including fixtures. [0003] The joystick of the car steering system is an extremely important part of the car's steering system. It is welded by irregular parts such as long rods and pins. The welding quality of the joystick is the key. It not only involves the reliability and stability of shifting, but also involves the safety of the car. If the welding position shifts or falls o...

AI Technical Summary

Problems solved by technology

Among them, the upper welding has two defects: one is that the upper electrode cannot accurately and stably clamp the parts to be welded, and because there is always a clamping gap of 0.2mm between the electrode and the parts to be welded, it leads to conductive contact during welding The area is small, the conductivity becomes poor, the contact resistance increases, the welding heat increases, and the welding efficiency and safety decrease

The second is that there is always a clamping gap of 0.2mm between the electrode and the parts to be welded, which leads to the error of the clamping itself. It needs to be debugged and calibrated in the preparation stage of welding work; during the working process, with the wear of the electrode and the accumulation of errors, it is necessary to stop the machine Adjust the calibration again to eliminate errors, resulting in low efficiency, increased defective products, and affecting work progress

The horizontal position welding method has the defect that the welding burn displacement (the molten pool becomes shorter) cannot be eliminated in time, and there are virtual welding, misalignment, gravity deformation, etc., which lead to poor position accuracy of the welded parts and a decrease in the yield rate, and the welding parts are damaged due to the virtual welding. Decreased firmness affects the safe use of end users

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