Compound cutter for non-metal composite material

Abstract

The invention discloses a compound cutter for a non-metal composite material. A drilling edge firstly contacts with a workpiece, and a cutter head is fed in the axial direction, so that a broaching edge contacts with a drill hole, the pore diameter is further increased, and the inner hole of the drill hole is cut by using a reaming edge; if the larger pore diameter needs to be drilled, feeding is performed further in the axial direction, so that cutting is carried out by a milling cutter; a primary shape is formed firstly by adopting fine machining of the drilling edge, the cutting of the broaching edge gradually goes through cutting of the reaming edge, fine machining is carried out by using the milling edge, and the thickness required to be cut is very small in a transitional machining process from the drilling edge to the reaming edge, so that the higher machining accuracy is realized; similarly, the thickness required to be cut is also smaller in a transitional machining process from the broaching edge to the milling edge; and compared with a conventional drill bit, the accuracy of the drill bit is higher. According to the broaching edge and the milling edge, two different pore diameters can be drilled and machined, and the cutter can be used as a milling cutter, milling machining is carried out; and the compound cutter simultaneously has the functions of machining two pore diameters and performing milling and cutting operations, so that the cutter replacement frequency is reduced, and the machining efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of novel composite material processing, and further relates to a composite tool for non-metallic composite materials. Background technique [0002] With the wide application of new composite materials, higher requirements are placed on the processing of high-strength, light-weight, and corrosion-resistant non-metallic composite materials. For the drilling of difficult-to-machine materials, the drilling of composite materials needs to meet high precision, No splitting, no burrs and smooth hole walls. [0003] When the commonly used twist drills are used to process new composite materials, the drill bit will drill holes at one time, and the exit is prone to defects such as burrs and splits, the hole making precision is not high, and the tools are easy to wear. In order to improve the machining accuracy, at least two processes are required, the first rough machining, followed by further grinding for finishing;...

AI Technical Summary

Problems solved by technology

[0003] When the commonly used twist drills are used to process new composite materials, the drill bit processes the drilled holes at one time, and the exit is prone to defects such as burrs and splits, the hole making accuracy is not high, and the tools are easy to wear and tear.

In order to improve the machining accuracy, at least two processes are required, the first rough machining, followed by further grinding for finishing; when the robot streamlines operations, it is necessary to stop and change the tool frequently, which greatly reduces the processing efficiency

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