Hidden skirting line grooving machine

The utility model relates to a hidden skirting line grooving machine, which mainly comprises two transverse cutting wheels, a vertical cutting wheel and a machine body, and comprises a main body structure and a transmission system, a main body structure comprises an upper horizontal cutting wheel, a lower horizontal cutting wheel, a machine body, a vertical cutting wheel, a vertical cutting wheel baffle, a main power shaft and a motor. The transmission system comprises a driving shaft spiral gear, a driven shaft rear spiral gear, a driven shaft, a driven shaft front spiral gear, an upper cutting wheel shaft, a lower cutting wheel shaft and upper and lower spiral gears; the upper horizontal cutting wheel and the lower horizontal cutting wheel are located on the upper portion and the lower portion of the front end of the machine body respectively. The main power shaft and a middle shaft of the motor are integrated, and the main power shaft is connected with the vertical cutting wheel. The device has the advanta