Tailor-welding tool for front frame of underground thin type loading vehicle

The utility model relates to a tailor-welding tool for a front frame of an underground thin type loading vehicle. The device comprises a front outer side supporting seat, a front inner side supporting seat, a front outer side positioning seat, a front inner side positioning seat, a middle outer side supporting seat, a middle inner side supporting seat, a middle outer side positioning seat, a middle inner side positioning seat, a low-position positioning shaft supporting seat, a low-position positioning shaft cover block, a high-position positioning shaft supporting seat, a high-position positioning shaft cover block, a front middle supporting seat and a bottom plate. The device comprises a shaft base, a transition shaft sleeve, a pipe spacer, a vertical positioning shaft, a sealing plate and a lead screw. According to the utility model, high-quality products can be quickly and effectively produced, and the quality of the produced products is easy to control; the labor intensity of workers is reduced; and a go