Curved surface turbulence polishing device with pressure equalization groove

Abstract

The invention provides a cambered turbulence polishing device with pressure equalizing grooves. The cambered turbulence polishing device comprises a constraint component which is arranged outside an artificial joint in a sleeved mode. The inner surface of the constraint component and the outer surface of the artificial joint are identical in shape. A profiling runner is arranged between the inner surface of the constraint component and the outer surface of the artificial joint. At least two sets of abrasive particle flow inlets and outlets are arranged in the constraint component. Grooves are arranged in the peripheries of the abrasive particle flow inlets and outlets to form the pressure equalizing grooves. The pressure equalizing grooves are distributed in the inner surface of the constraint component. The pressure equalizing grooves in the two adjacent abrasive particle flow inlets and outlets are mutually communicated. According to the cambered turbulence polishing device, the profiling runner for controlling abrasive particle flow is arranged through the constraint component, multiple sets of abrasive particle flow inlets and outlets are arranged in the constraint component, and a complex cambered surface is machined in a segmented mode, so the condition that the abrasive particle flow encounters resistance at inflection points or singular points of the cambered surface to cause uneven polishing is avoided. The pressure equalizing grooves are arranged in the peripheries of the abrasive particle flow inlets and outlets, so that pressure is evenly distributed on the inner surface of the constraint component, and the problem of high-pressure interference at the abrasive particle flow inlets is solved to some extent. Therefore, the cambered turbulence polishing device with the pressure equalizing grooves is good in polishing effect and high in precision.

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 profi...

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 curved surface turbulent polishing device with good polishing performance and high precision with pressure equalizing grooves

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