Microscopic light path laser coupling repeated positioning device

The invention discloses a microscopic light path laser coupling repeated positioning device. The device comprise an upper glasses frame (10) and a base (20) which are arranged up and down, three balls(30) are arranged between the upper mirror bracket (10) and the base (20); three upper grooves are formed in the upper surface of the base (20); the three upper grooves are distributed in a triangular shape; the bottom surface of the first upper groove (21) is a conical surface; the bottom face of the second upper groove (22) is a V-shaped face, the bottom face of the third upper groove (23) is aplane, three lower grooves are formed in the lower surface of the upper mirror frame (10), the upper portions of the balls (30) are located in the lower grooves, the lower portions of the balls (30)are located in the upper grooves, and the centers of the three balls (30) are located in the same reference plane. The microscopic light path laser coupling repeated positioning device not only can realize high-repeatability mi