Inclined hole machining method

A processing method and oblique hole technology, applied in geometric CAD and other directions, can solve the problems of high production cost of five-axis machine tools and difficult benchmark design of three-axis machine tools, and achieve the effect of reducing research and development costs and cycles and saving costs.

Pending Publication Date: 2020-02-28
COMAC +1
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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for processing inclined holes to solve the problem

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  • Inclined hole machining method

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[0029] The technical solution of the present invention will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for ease of description, the drawings only show parts related to the present invention, but not all.

[0030] The invention provides a method for processing oblique holes. The equipment used includes a three-axis machine tool and a rotary table. The three-axis machine tool realizes linear feed movement in three directions of X, Y and Z, and the rotary table realizes A, C or B. , C-direction rotation, it should be noted that the rotation of the rotary table around the X axis is defined as the A axis, the rotation around the Y axis is defined as the B axis, and the rotation around the Z axis is defined as the C axis; the tools used include the reference ball;...

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Abstract

The invention relates to the technical field of aircraft manufacturing, in particular to an inclined hole machining method which comprises the following steps of establishing a three-dimensional digital model of a part, and determining the spatial positions of a reference hole, a reference ball and an inclined hole; establishing an absolute coordinate system, and determining angles alpha and beta;establishing a rotating coordinate system, and determining the coordinate of the axis of the inclined hole; processing a reference hole and installing a reference ball; turning over the part to enable the axis of the inclined hole to be parallel to the axis of the machining spindle; aligning the center of the reference ball, and processing an inclined hole according to coordinates. The referenceball is used as a process reference; no matter the reference ball rotates to any direction, the center of the reference ball can be aligned, the reference origin still exists, the problem of referencedesign is well solved, the method is particularly suitable for machining inclined holes of single diversified parts, the requirement for machining high-precision inclined holes can be met only through a three-axis machine tool and a rotary workbench, and the cost is effectively saved.

Description

technical field [0001] The invention relates to the technical field of aircraft manufacturing, in particular to a method for processing inclined holes. Background technique [0002] The special structure of the aircraft determines that the machining of inclined holes is often encountered in the manufacturing process of aircraft parts and corresponding process equipment. In principle, there are currently two methods for machining inclined holes. One is to use advanced five-axis machine tools to process directly according to the machining benchmark and digital-analog programming, that is, the main shaft of the machine tool moves, and the processed parts do not move. The second is to place the axis of the hole of the machined part parallel to the main shaft of the machine tool, that is, the machined part moves and the machine tool main shaft does not move. [0003] Method 1 is the main method for processing double inclined holes at present. The advantage of this method is that...

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Application Information

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IPC IPC(8): G06F30/17G06F30/15
Inventor 汤宏杰王媛
Owner COMAC
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