Electric grinding machine

The utility model discloses an electric grinding machine, including base, support and drive arrangement, the base is connected with through the connecting piece and grinds the box, and this grinding box is upper end open -ended cylinder form, and this grinding box open -ended one end is equipped with ejection of compact mouth, the support is " L " type, and the lower extreme of this support is fixed in one side of base, and the upper end of this support links to each other with drive arrangement, drive arrangement is equipped with electric motor and takes the independent source of power of switch, electric motor is connected with vertical decurrent rotatory telescopic link, the other end of rotatory telescopic link is connected with the runner, and this runner is connected with the abrasive disc through the connecting rod. The upper end of connecting rod is located the eccentric position of runner, and the lower extreme of this connecting rod is located the eccentric position of abrasive disc, the abrasive di