Spring pressure-assisted cutting fixing device with double cutting torches and application method of spring pressure-assisted cutting fixing device

The invention discloses a spring pressure-assisted cutting fixing device with double cutting torches and an application method of the spring pressure-assisted cutting fixing device, which are quite suitable for cutting grooves of petals of spherical tanks and can simultaneously carry out one-step groove forming cutting for two groove surfaces. The fixing device comprises a transverse adjusting rod, a cutting torch fixing sleeve and a supporting guide wheel, the transverse adjusting rod is connected with an arc seam cutting adjusting mechanism, the cutting torch fixing sleeve is mounted on a cutting torch positioning mechanism, the supporting guide wheel is mounted in a supporting guide wheel mounting mechanism, the arc seam cutting adjusting mechanism is fixed onto a spring pressure assisting mechanism by a bolt, and the cutting torch positioning mechanism and the supporting guide wheel mounting mechanism are mounted on the lower portion of the spring pressure assisting mechanism. The application method inclu