Finishing machining device and method in pneumatic suspension abrasive tank

Abstract

The invention discloses a finishing machining device and method in a pneumatic suspension abrasive tank, and belongs to the field of metal surface finishing machining. The finishing machining device is mainly composed of a workpiece rotary feeding system, the abrasive tank, a wind power feeding system and a base. Each unit cooperates with each other to carry out efficient and comprehensive finishing machining on a workpiece in the abrasive tank, and the finishing machining device can be applied to complex surfaces, special holes, workpiece small clearances and other places which are difficultto machine by traditional finishing machining methods. The finishing machining device has high adaptability and can control the diameter of abrasive particles and the gas wind velocity and wind pressure in the abrasive tank according to the workpiece finishing requirements so as to meet the machining requirements; and meanwhile, the type and temperature of injected gas can further be adjusted according to the requirements of the own workpiece for the finishing environment. The finishing machining device has the advantages of high finishing efficiency, simple operation, simple structure, safetyand reliability, the abrasive tank is further easy to clean, and the abrasive is easy to replace.

Description

technical field [0001] The invention relates to a finishing processing device and method of an air pressure suspended abrasive pool, and belongs to the field of finishing processing of metal surfaces. Background technique [0002] The surface quality of parts has an important influence on the service life and performance of parts. With the development of medical, aerospace, precision instrument, and mold manufacturing industries, people put forward higher and higher requirements for the surface quality of parts. Studies have shown that the microscopic morphology of the workpiece surface formed by traditional mechanical finishing methods (grinding, grinding, polishing, ultra-precision machining) is jagged, and the friction coefficient of this shape is large, which is easy to cause wear when rubbing, and the initial loss is large , low precision retention, can no longer meet the requirements of higher technical indicators. Therefore, the emerging finishing method is more and...

AI Technical Summary

Problems solved by technology

However, this technology is limited by the material of the workpiece, the size of the workpiece, and the removal amount of the surface of the workpiece material. Different position angles and surfaces with different curvatures have different removal rules.

At the same time, magnetic abrasives have the problems of high cost, short life and poor performance

Seriously restrict its development and application; the abrasive flow technology is the purpose of finishing by extruding semi-solid fluid abrasive through the surface of the workpiece to be processed. In the process of homogenization and finishing, there are serious over-throwing, inverted The circle problem greatly destroys the uniformity of the machined surface

These processing methods have different principles and have their own strengths, but each has its own limitations.

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