Integrated alignment method and device for aero-engine assembly and measurement based on dense bead rolling bearing

Abstract

The invention provides an integrative aligning method for aero-engine assembly and measurement based on dense ball rolling supporting and an integrative aligning device for the aero-engine assembly and measurement based on the dense ball rolling supporting. The method is characterized by being realized through the combined motion of a round bottom disc, an interlayer and a motion table; the interlayer is arranged between the motion table and the round bottom disc; small holes are fully distributed in the interlayer; ball type rolling bodies are respectively embedded into the small holes; when the motion table moves along an X direction, the round bottom disc and the interlayer are kept static, the rolling friction is implemented between the round bottom disc and the motion table, and an X-direction guiding system is matched with guiding grooves in the interlayer to play a role in guiding; when the motion table moves along a Y direction, the round bottom disc is kept static, the interlayer and the motion table synchronously move, the rolling friction is implemented between the round bottom disc and the interlayer, and a Y-direction guiding system is matched with guiding grooves in the interlayer to play a role in guiding. According to the aligning method and the aligning device, a two-dimensional motion adjusting device combining high precision, high stability and great load is established.

Description

technical field [0001] The invention belongs to the technical field of precision instruments and machinery, and in particular relates to an integrated centering device for assembly and measurement of aero-engines based on dense bead rolling bearings. Background technique [0002] In recent years, as the advanced equipment manufacturing industry gradually develops towards precision and ultra-precision, especially the continuous improvement of aero-engine performance, the precision requirements for engine processing and assembly are getting higher and higher, especially in the pursuit of higher thrust-to-weight ratio. , the impact of engine vibration, noise and other factors caused by assembly errors on performance is gradually highlighted. This poses a severe challenge to the performance of the engine test equipment, and thus has higher requirements on the performance of the adjustment and positioning workbench used. [0003] In 2000, the friction-driven workbench developed ...

AI Technical Summary

Problems solved by technology

[0010] Patent CN200920177016 "Single-layer small-stroke two-dimensional workbench" proposes a single-layer small-stroke two-dimensional workbench, which is composed of a fixed slider, a transition slider, a target slider, a plate spring and an adjusting screw, and adopts an annular plate structure , through the combined action of the adjusting screw and the plate spring, the target slider can complete the two-dimensional movement of the X-axis and Y-axis in the same horizontal layer, solving the problem that the two-dimensional workbench with a common double-layer structure occupies a large space and lacks rigidity question

[0011] The common problem existing in the above-mentioned prior art is that under the condition of heavy load, the high precision and high resolution of the adjusting device cannot be guaranteed. It is carried out on the workbench, which requires the use of an adjustment workbench that can withstand large loads and has high adjustment and positioning accuracy

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