Helical milling device and method

A technology of helical hole milling and helical feeding, which is applied in the field of cutting processing, can solve the problems of difficult to guarantee machining accuracy, complex structure and composition, and large impact on weight, so as to reduce manufacturing costs, avoid frequent tool changes, and reduce tool wear.

Inactive Publication Date: 2010-07-28
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS +1
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Problems solved by technology

[0005] Aiming at the deficiencies in aspects such as complex structure easily leading to manufacturing difficulties, high manufacturing costs, difficulty in guaranteeing machining accuracy, and high weight affecting application benefits, the present invention proposes a method based on the principle of helical milling to realize the helical feed and Helical milling method and device for radial offset positioning assisted by grating ruler

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  • Helical milling device and method

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Embodiment Construction

[0027] The helical hole milling device and method of the present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation examples.

[0028] figure 1 It is a helical hole milling device disclosed in the present invention, which mainly includes a helical feeding mechanism 1100 , a radial offset mechanism 1200 , and a tool rotation mechanism 1300 . The radial offset mechanism 1200 is connected to the screw feed mechanism 1100 through the circumferential uniform bolts 1112 by adjusting the support end cover 1205 , and is fixedly connected to the tool rotation mechanism 1300 through the radial offset slider 1201 .

[0029] The cutter autorotation mechanism 1300, its autorotation motor 1301 is connected with the cutter 1303 of certain diameter through the cutter clamping mechanism 1302 at the end.

[0030] The screw feed mechanism includes a cylindrical housing 1101, a sliding bracket 1105 installed in the housing throug...

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Abstract

The invention relates to a helical milling device and a helical milling method, and belongs to the technical field of machining. The device mainly comprises a helical feed mechanism (1100) used for realizing the axial feeding and revolution of a cutter (1303), a radial deviation mechanism (1200) used for adjusting the revolution radius of the cutter (1303) relative to axes of pores and a rotation mechanism (1300) used for driving the cutter to rotate. The device and the method of the invention can greatly improve the manufacturing quality and machining efficiency of complex pore series on surfaces of large-scale workpieces.

Description

technical field [0001] The invention relates to a helical hole milling method and device, in particular to a helical milling method and device for high-efficiency machining of porous systems of large workpieces and high-precision machining of holes in difficult-to-machine materials, and belongs to the technical field of cutting processing. Background technique [0002] Assembly hole making is a key link in the manufacture and assembly of aircraft and large aircraft. The efficiency of hole making directly restricts the aircraft assembly cycle, and the quality of hole making will also directly affect the fatigue resistance of connected structural parts. In this regard, the traditional drilling processing technology is mostly used at present. However, drilling is a continuous cutting process. For titanium alloys with poor thermal conductivity, the drilling heat can quickly lead to tool wear and failure. Secondly, the axial force of traditional drilling is very large, which can...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C3/00B23Q5/04B23Q5/32
Inventor 李亮何宁单以才杨吟飞赵威卞荣秦晓杰陈建立
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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