Electrolytic capacitor with high weldability

The utility model discloses a high-weldability electrolytic capacitor, which comprises a shell, a plurality of clamping grooves are arranged at the top of the shell, a plurality of clamping blocks are clamped in the clamping grooves, the clamping blocks are fixedly connected to the peripheral side of a top cover, the bottom surfaces of the clamping blocks are fixedly connected with a plurality of welding pieces, the inner wall of the shell is fixedly connected with a plurality of convex blocks, and the top of the inner wall of the shell is fixedly connected with a clamping ring. Two second through holes are formed in the top face of the sealing rubber in a penetrating mode, two guide pin assemblies are arranged on the core bag, each guide pin assembly comprises a guide pin rod, a gear ring and a threaded lantern ring, two first through holes are formed in the top face of the top cover in a penetrating mode, and the guide pin rods are inserted into the first through holes. According to the utility model, throu