Parallel-series six-freedom-degree operating platform for adjusting position of curved workpiece

Abstract

The invention discloses a parallel-series six-freedom-degree operating platform for adjusting a position of a curved workpiece, which is applied to a laser strengthening process. A guide rail which is arranged along a y axis direction is arranged between a frame and a y axis moving platform; a guide rail which is arranged along an x axis direction is arranged between the y axis moving platform and an x axis moving platform; a central position on the upper surface of the x axis moving platform is connected to the central position at the bottom of a rotating platform along a z axis direction through a rotating pair; a moving platform is arranged on upper part of the rotating platform; four moving chains are in parallel connection between the rotating platform and the moving platform; moving pairs are arranged on the middle parts of first, second and fourth moving chains; two ends of the first, second and fourth moving chains are respectively connected to the rotating platform and the moving platform through spherical pairs; a lower end of a third moving chain is vertically and fixedly connected to the centre of the rotating platform along the z axis direction, a moving pair is arranged on the middle part of the third moving chain and an upper end of the third moving chain is connected to the moving platform through a universal joint; and the first, second and third moving chains are respectively connected to driving pieces, thereby being capable of realizing the free adjustment for the position and displacement of a large-scale irregular curved workpiece during the strengthening process.

Description

technical field [0001] The invention designs and describes a hybrid six-degree-of-freedom automatic worktable for adjusting the position and posture of curved surface workpieces in the laser strengthening process, which can realize automatic adjustment of the position and attitude of curved surface workpieces, so that the direction of the laser beam coincides with the normal direction of the strengthening point , to achieve the best strengthening effect, especially for laser strengthening of unconventional curved surface parts, such as: for the adjustment of blade position and attitude during the laser strengthening process of aeroengine blades or steam turbine blades. Background technique [0002] The aeroengine blade is the main part of the air flow channel of the engine. It works under the conditions of high speed, high temperature, high load and high stress. Its structure and bearing conditions are very complicated. It is subject to vibration, corrosion, thermal shock, a...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects in the performance of the workpiece pose adjustment workbench in the prior art, the present invention provides a hybrid six-degree-of-freedom workbench for adjusting the pose of a curved workpiece. It can effectively solve the problem of six-degree-of-freedom pose adjustment in complex curved surface workpiece space, and meet the special requirements of the continuous change of the normal direction at the strengthening point of the curved surface workpiece during the laser shock peening process.

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