Method for drilling on curved surface structure

Abstract

The invention relates to a method for drilling on a curved surface structure. Drilling equipment is used for drilling on the curved surface structure of an object to be drilled, the drilling equipment comprises a motion platform with multiple degrees of freedom and a drilling assembly connected with the motion platform, and the drilling assembly comprises a machine base unit, a drilling unit and a visual detection unit; the machine base unit is installed on the motion platform; the drilling unit is arranged on the machine base unit in a sliding mode and the visual detection unit is fixedly connected to the machine base unit. The method comprises the following steps that firstly, the visual detection unit is aligned with a drilling area of the object to be drilled, and a normal direction of a position to be drilled in the drilling area is calculated; secondly, the position of the drilling unit is adjusted, and the axis of a drilling main shaft arranged on the drilling unit coincides with the normal direction; and thirdly, the drilling main shaft is driven to rotate and move forwards at a high speed, and a target hole is obtained after drilling is completed. The normal direction of the drilling position is obtained through visual detection technology and coincides with the axis of the drilling unit, and the drilling direction precision of the curved surface structure can be improved.

Description

technical field

[0001] The invention relates to the field of machining equipment, in particular to a method for drilling holes on curved surface structures. Background technique

[0002] When drilling a hole on a curved surface structure, it is necessary to strictly control the angle between the axis of the hole and the curved surface. Therefore, the normal direction at the drilling position of the surface structure must be accurately measured first, and on this basis, the position and direction of the drilling tool can be accurately adjusted to better control the direction of the hole. It can be seen that the accurate measurement of the normal direction at the drilling position of the curved surface structure is a prerequisite. At present, the indirect measurement method is generally used to measure the normal direction of the surface structure, and multiple distance measuring sensors (such as laser distance measuring sensors, etc.) or displacement sensors (such as length ...

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