Five-axis linkage series-parallel machine tool structure

Abstract

The invention discloses a five-axis linkage series-parallel machine tool structure with high rigidity. Three stand columns of a working frame are all perpendicular to a triangular positioning top and a machine tool body, and the top end and the bottom end of the working frame are connected with the positioning top and the machine tool body at one corner of the positioning top correspondingly; three branch chains are sequentially arranged in the working frame and can stretch out and draw back in the length direction of the branch chains to change the length; the top ends and the bottom ends of branch chains I and branch chains III are connected with one ends of a rotating pair I and a rotating pair III, a rotating piece I and a rotating piece III respectively; the other ends of the two rotating pairs are rotatably connected with the tops of the two corresponding stand columns respectively; the other ends of the two rotating pieces are respectively and rotatably connected with two corresponding angles of a triangular movable platform in at least two degrees of freedom; the top end and the bottom end of a branch chain II are rotatably connected with one end of a rotating part IV and one end of a rotating part II in at least two degrees of freedom respectively; and the other ends of the two rotating parts are rotatably connected with the top of the corresponding stand column and one corner corresponding to the movable platform in at least two degrees of freedom respectively.

Description

technical field [0001] The invention relates to a multi-axis linkage machine tool in intelligent manufacturing equipment, in particular to a five-axis linkage hybrid machine tool structure. Background technique [0002] Five-axis linkage machine tool is a kind of CNC machine tool that has attracted much attention in the field of intelligent manufacturing research in the world in recent years. It can effectively process large-scale, high-precision and complex curved surface parts, and realize multi-coordinate linkage CNC machining, assembly and measurement and other functions. However, in the existing five-axis linkage machine tool, there is a five-axis serial machine tool, the moving parts of which are connected in series, the technical problems are: only one branch chain, the rigidity is low; only one branch chain supports the moving platform, The size of the moving parts must be designed larger, and the quality of the moving parts is larger; only one branch chain constrain...

AI Technical Summary

Problems solved by technology

However, in the existing five-axis linkage machine tool, there is a five-axis serial machine tool, the moving parts of which are connected in series, the technical problems are: only one branch chain, the rigidity is low; only one branch chain supports the moving platform, The size of the moving parts must be designed larger, and the mass of the moving parts is larger; only one branch chain constrains the moving platform, and the motion accuracy is low; only one branch chain acts on the moving platform, the driving force is small, the acceleration generated is small, and the response speed slower

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