Double-column type automatic tiny weight loading mechanism

The invention relates to a double-column type automatic tiny weight loading mechanism. The double-column type automatic tiny weight loading mechanism comprises a three-degree-of-freedom mechanical arm capable of moving up and down in the vertical direction and moving leftwards and rightwards in the horizontal direction, a storage rack and rotary weight racks, wherein the three-degree-of-freedom mechanical arm is fixed on a ground base; the storage rack is fixed above the three-degree-of-freedom mechanical arm; the plurality of groups of rotary weight racks are fixed on the storage rack; and rotary balances capable of rotating for 360 degrees around the vertical axis are arranged at the bottoms of the rotary weight racks. According to the double-column type automatic tiny weight loading mechanism provided by the invention, a plurality of groups of weights can be automatically switched, and the loading and unloading of the weights are stable and reliable, and the loading speed is adjustable. 本发明涉及种双柱式微小砝码自动加载机构