3D printing online high-temperature ultrasonic milling system based on main shaft without cooling hole

Abstract

The invention discloses a 3D printing online high-temperature ultrasonic milling system based on a main shaft without a cooling hole. The 3D printing online high-temperature ultrasonic milling systemcomprises a wireless power transmission mechanism, a transduction luffing mechanism and a cutter handle. The transduction luffing mechanism is arranged in an inner cavity of the cutter handle, a mainshaft shell sleeves the cutter handle, and a sealing sleeve is arranged between one end of the main shaft shell and the cutter handle. The sealing sleeve is in clearance fit with the cutter handle, sealing rings are arranged between the sealing sleeve and the cutter handle at intervals, and cutter handle air holes are formed in the portion, between the two sealing rings, of the cutter handle at intervals in the circumferential direction. Air inlet holes are formed in the portions, corresponding to the cutter handle air holes, of the sealing sleeves, the air inlet holes are connected with an air cooling device, and air outlet holes are formed in the portions, outside the sealing sleeves, of the lower end of the cutter handle at intervals in the circumferential direction. According to the 3Dprinting online high-temperature ultrasonic milling system based on the main shaft without the cooling hole, cold air is fed into the cutter handle to reduce the internal temperature, heat of an amplitude-change pole is prevented from being transmitted to a transducer by coating a heat insulation coating, and the working stability in a high-temperature environment is ensured.

Description

Technical field: [0001] The present invention relates to a 3D printing online system, in particular to a 3D printing online high-temperature ultrasonic milling system based on a spindle without cooling holes Background technique: [0002] Rapid prototyping technology, including 3D printing, is widely used in the manufacturing process of modern products due to its short processing cycle and low cost, but its low forming accuracy has become a key problem limiting its development. In order to improve the precision of formed parts, it is necessary to reprocess the surface of the material after cladding to improve the surface integrity of the workpiece. However, the surface of the workpiece after forming is hard and brittle, and the processing performance is poor. Ultrasonic machining can not only ensure the machining accuracy of the workpiece surface, but also have small cutting force and long service life of the tool. During the reprocessing process, the molding material is in...

AI Technical Summary

Problems solved by technology

However, the surface of the workpiece after forming is hard and brittle, and the processing performance is poor. Ultrasonic machining can not only ensure the processing accuracy of the workpiece surface, but also have small cutting force and long tool life.

During the reprocessing process, the molding material is in a high temperature state of 300-1000°C, so the heat will be transferred to the ultrasonic transducer through the tool, causing the transducer to fail

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