The invention discloses a five-linkage-rod mechanism for non-spherical element
polishing. The mechanism mainly comprises a
machine frame, main shafts,
crank sliding tables, spherical hinge mechanisms,connecting rod sliding tables, connecting rods, a workpiece, positioning measuring tools, a floating head, a control box, a
pitch lap and a rapid disassembling module, the two main shafts, the cranksliding tables, the spherical hinge mechanisms, the connecting rod sliding tables and the connecting rods form the closed two-spherical-hinged three-degree-of-freedom five-rod mechanism, the two positioning measuring tools accurately determine the position of the workpiece relative to the two main shafts, the control box is used for controlling the rotating speed and the rotating angle of the mainshafts, the length of the
crank sliding tables and the length of the connecting rod sliding tables through reading codes, and the connecting rods drive the
pitch lap to realize
polishing machining. The five-linkage-rod mechanism is a mechanism which is based on three-degree-of-freedom five-connecting-rod
mechanism based on the two-spherical-hinged three-degree-of-freedom five linkage rods, controllable
residence time type
polishing is realized according to the traditional manual polishing characteristic design, the mechanism is suitable for various non-spherical elements, the single removal amount can be controlled at the nanometer level, and the advantages of being flexible in movement, high in reliability, high in
machining quality, capable of effectively restraining medium-frequency errors and the like are achieved.