Automatic sealing machine for rod core of pneumatic rod

The utility model belongs to the technical field of pneumatic rod production and processing, and particularly relates to an automatic sealing machine for a rod core of a pneumatic rod, which comprises a workbench and a sealing structure connected with the workbench, a through hole is formed in the workbench, and the sealing structure comprises a rotating component, a fixing component, an adjusting component and a sealing component. The air pressure bar needing to be sealed is inserted into the connecting hole in the inner wall of the connecting sleeve, the bottom end of the air pressure bar makes contact with the supporting plate, the length of the air pressure bar extending out of the through hole is adjusted through the adjusting assembly, the telescopic rod is controlled to push the clamping plate to clamp and fix the air pressure bar, and the outer wall of the air pressure bar is prevented from being damaged by clamping through the gasket; and a hydraulic rod is controlled to push a moving block to move l