Secondary clamping process method for thin-wall spherical shell type tiny component

Abstract

The invention discloses a secondary clamping process method for a thin-wall spherical shell type tiny component, and relates to the technical field of clamping processes. The secondary clamping process method solves the problems of low machining precision, poor surface quality and low machining efficiency of a micro-pit structure caused by low reliability and low repeated positioning precision of current secondary clamping. A five-axis linkage ultra-precision machining device composed of a high-precision driving device is used for conducting surface machining and secondary clamping on the thin-wall spherical shell type tiny component, and a primary clamping vacuum adsorption clamp and a secondary clamping vacuum adsorption clamp are each internally provided with a zero-point quick-change positioning system. The contact area of the secondary clamping vacuum adsorption clamp and the thin-wall spherical shell type tiny component is monitored through a high-resolution CCD camera, the positions of the secondary clamping vacuum adsorption clamp and the thin-wall spherical shell type tiny component are analyzed through a computer, the accuracy in the secondary clamping process is guaranteed, the repeated positioning precision of the zero-point positioning systems is high, and high-repeated-positioning-precision turning-around clamping of the thin-wall spherical shell type tiny component is guaranteed.

Description

technical field [0001] The invention relates to the technical field of clamping technology, in particular to a secondary clamping process for small components of thin-walled spherical shells. Background technique [0002] Thin-walled spherical shell micro-components have many advantages such as light weight, high reliability and high structural efficiency, and are widely used in various aerospace, national defense, electronic information, biomedical and other industries. Usually, the surface shape of these parts requires sub-micron-level shape accuracy, nano-level surface roughness and minimal sub-surface damage, and it is required to manufacture micron to sub-millimeter spans on the entire surface on the basis of complex surfaces such as curved surfaces. scale feature structure. For example, the micro-scale thin-walled spherical shells used for energy research have a diameter of 1-5 mm and a shell thickness of 20-120 μm. For a micropit structure with a size of 50-200 μm, ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems of low reliability of secondary clamping and low repeat positioning accuracy, resulting in low processing accuracy of micro-pit structure, poor surface quality and low processing efficiency, the purpose of the present invention is to provide a thin-walled spherical shell micro-component Secondary clamping process

Images