Auxiliary alignment tool for vertical oil cylinder assembly

The utility model relates to the field of oil cylinders, and particularly discloses a vertical oil cylinder assembly auxiliary alignment tool which comprises a barrel clamping assembly, a vertical oil cylinder clamping assembly and a vertical oil cylinder jacking assembly for adjusting the height of the vertical oil cylinder clamping assembly in the vertical direction. The barrel clamping assembly comprises a first mounting plate and a barrel clamping jaw set movably mounted on the first mounting plate and used for clamping a barrel, and the vertical oil cylinder clamping assembly comprises a second mounting plate and a vertical oil cylinder clamping jaw set movably mounted on the second mounting plate and used for clamping a vertical oil cylinder. The vertical oil cylinder jacking assembly can drive the installation pin hole of the vertical oil cylinder to be aligned with the installation pin hole of the barrel body when the vertical oil cylinder assembly is assembled, so that the alignment accuracy of the b