Through hole polishing device for through hole polishing by utilizing negative pressure and method thereof

Abstract

The invention discloses a through hole polishing device for through hole polishing by utilizing negative pressure and a method thereof. The device comprises a sliding guide rail clamping assembly, a workpiece clamping assembly, an abrasive particle grinding flow circulating assembly and a sealing device, wherein the sliding guide rail clamping assembly, the workpiece clamping assembly and the abrasive particle flow circulating assembly are installed in the sealing device, a nitrogen gas vent and a nitrogen gas extraction port are formed in the sealing device, the nitrogen gas vent on the sealing device is connected with an external nitrogen generation device, and the nitrogen gas extraction port on the sealing device is connected with an external air extraction device. According to the device, a bent inner hole on the 3D printed machined workpiece can be polished by means of abrasive particle flows under the negative pressure state, automation of bend inner hole polishing is realized,the labor cost is saved, through automatic processing, higher polishing precision can be obtained, and the efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of abrasive particle flow polishing, and more specifically relates to a through-hole polishing device and method thereof which use negative pressure to perform through-hole polishing. Background technique [0002] Polishing mainly refers to the use of mechanical, chemical or electrochemical effects to reduce the surface roughness of the workpiece to obtain a bright and smooth surface. It is a modification process on the surface of the workpiece by using polishing tools and abrasive particles or other polishing media. At present, the commonly used polishing methods include mechanical polishing, chemical polishing, and electrolytic polishing. [0003] Liquid metal Liquid metal refers to an amorphous metal, and liquid metal can be regarded as a mixture composed of positive ion fluid and free electron gas. Liquid metal is also an amorphous, flowing liquid metal. Liquid metal polishing refers to the polishing of the wor...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of low polishing efficiency, long cycle, and inability to realize automatic polishing of curved inner holes of 3D printing workpieces. A through-hole polishing device and method for through-hole polishing using negative pressure are proposed, which can automatically realize 3D The polishing of the curved inner hole of the printed workpiece has high polishing efficiency and a high degree of automation, which greatly saves labor costs and improves processing efficiency

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