Curved surface turbulence polishing device with multiple outlets and inlets

Abstract

The invention relates to the field of abrasive particle flow polishing machining, in particular to a turbulence precise machining device for a titanium alloy joint prosthesis. The curved surface turbulence polishing device comprises a constraint component which is installed outside the joint prosthesis in a sleeved mode. The inner surface of the constraint component is the same as the outer surface of the joint prosthesis in shape. A copying flow channel is formed by the inner surface of the constraint component and the outer surface of the joint prosthesis, small grooves are formed in the inner surface of the constraint component, at least two sets of outlets and inlets of abrasive particle flows are formed in the constraint component, and the outlets and inlets of the abrasive particle flows are communicated with the copying flow channel. The copying flow channel where the abrasive particle flows are controlled is constructed through the constraint component, the small grooves are evenly distributed in the inner surface of the constraint component, so that the abrasive particle flows form a turbulence state more sufficiently, the multiple sets of outlets and inlets of the abrasive particle flows are formed in the constraint component, the complex curved surface is machined in a segmenting mode, therefore, it is avoided that polishing is not even because the abrasive particle flows are resisted at curved surface inflection points or singular points, machining efficiency is improved, the polishing effect is optimized, and polishing precision is high.

Description

technical field [0001] The invention relates to the field of abrasive flow polishing processing, in particular to a turbulent flow precision processing device for a titanium alloy artificial joint. Background technique [0002] The smoothness of the artificial joint surface has a crucial impact on its function and service life. Therefore, the formed titanium alloy artificial joint prosthesis cannot be directly applied to the inside of the human body, and it needs to go through a series of grinding and polishing. Subsequent processing will finally obtain a high-precision and high-gloss surface, forming an artificial joint that fits well with human bones. [0003] The surface of the artificial joint is a complex curved surface with different curvatures, and the thermal conductivity and cutting performance of titanium alloy are poor. In the existing surface precision machining technology, most of the methods are difficult to apply. Since the abrasive flow can form a good p...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the difficult problem of finishing complex curved surfaces of titanium alloy artificial joints, the present invention provides a turbulent polishing device with good polishing performance and high precision for curved surfaces with multiple inlets and outlets

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