Spare section contour-line measuring equipment of loundspeaker

This utility model discloses a non-contact surveying instrument, overcoming the low surveying precision of the prior arts by using a contact surveying method. The utility model comprises a surveying bracket and a distance measuring equipment; wherein, the surveying bracket is equipped with a movable platform and a gearing to drive the movable platform, the side of the surveying bracket is equipped with a digital display vernier caliper whose digital display device is connected to a computer by cable connection, the distance measuring equipment includes a high precision laser ranging probe mounted above the surveying bracket, the probe is connected to the computer by cable connection, the gearing includes a pair of guide ways supporting the movable platform and a precision screw mandrel mounted on the two ends of the surveying bracket, and one end of the precision screw mandrel is connected to a manual wheel or electromotor. The product has advantages of simple structure, novel conception, easy use, and high precision of the measured profile curve. The utility model is particularly suitable for measuring mini-type speaker parts, and can be widely used in the speaker manufacturing technology area.