Special-shaped arc slab trackless running guiding auxiliary cutting device

The utility model discloses a special-shaped arc plate trackless running guide auxiliary cutting device which comprises a power trolley, one side of the power trolley is connected with a fixing rod through a support, and the lower portion of the fixing rod is provided with a guide wheel attached to the edge of a steel plate to be machined. A vertical guide rod is arranged on the upper portion of the power trolley and sleeved with a first connecting sleeve, a horizontal guide rod is arranged on the outer wall of the first connecting sleeve and connected with a connecting rod through a second connecting sleeve, and a cutting gun is arranged at the lower end of the connecting rod. The special-shaped thick plate groove cutting device is simple in structure, wide in application range, capable of being suitable for groove cutting operation of various special-shaped thick plates, easy to operate, safe and stable, the occurrence probability of steel plate groove cutting quality problems is reduced, and meanwhile work