CONIC CURVE GAUGE

The utility model belongs to a curve drawing instrument for drawing conic sections, composed of a deflection regulating block perpendicularly arranged on a fixed seat plate, a cone mandrel perpendicularly arranged on the deflection regulating block, a connecting seat, a sleeve block and a drawing pen bar. The utility model is designed by adopting the principle that a plane is immobilized; a cone generating line rotates around thereof axis, making a telescopic straight-line motion passing through the vertex of a conical surface. The fixed seat plate is provided with a visual display of the coordinates system. A conic curve with a defined eccentricity can be conveniently drawn, the drawing efficiency being raised. The utility model can be widely used for scientific researches, teaching, engineering design and machine equipment.