Process equipment for laser machining air film group holes and shape of multi-ring wave large heat shield

Abstract

The invention relates to a processing device for laser-processing grouped air-film holes and an exterior of a big multi-ring wave heat-insolating screen. The processing device comprises a fixed base plate, a sliding base plate, a left upright column, a right upright column and a stroke-adjusting positioning pin, wherein the sliding base plate is arranged on an upper surface of the fixed base plate; the left upright column and the right upright column are respectively arranged at two ends of the sliding base plate; and the stroke-adjusting positioning pin is arranged on the sliding base plate. The invention especially provides the processing device for laser-processing the grouped air-film holes and the exterior of the big multi-ring wave heat-insolating screen, and a horizontal station adjustable stroke is realized by the processing device for a three-dimensional laser system, so that the problem of the insufficient stroke of the present three-dimensional laser system is solved, the once clamping laser processing for a large number of grouped air-film holes and the exterior of a fan-shaped section of the big multi-ring wave heat-insolating screen of an aircraft engine is realized, and the position and the normal direction of the grouped air-film holes are vertical to a molded surface of a part.

Description

technical field [0001] The invention relates to the design of process equipment for processing gas film group holes and shapes of heat shield materials, and particularly provides a process equipment for laser processing gas film group holes and shapes of multi-ring wave large heat shield screens. Background technique [0002] The heat shield of the engine afterburning cylinder is a complex stamping and forming part of thin-walled plate. Its unfolded shape is a multi-wave conical sector, and its external dimensions are very large, with a length of 1-1.1m and a width of more than 0.45m. There are more than 10,000 tiny air film group holes with a diameter of only 1mm. The design requires that the normal direction of these holes is perpendicular to the part profile. This type of part is first developed. Due to the shape of the part and the requirements of tiny group holes, this kind of The manufacturing process of the heat shield of the afterburner cylinder part needs to be form...

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Problems solved by technology

[0004] In particular, the present invention provides a process equipment for laser processing gas film group holes and shapes of multi-ring wave large heat shield, which solves the problem that the length and size of the fan-shaped parts of multi-ring wave large heat shield exceeds the three-coordinate laser. The stroke of the processing system, it is difficult to complete all the gas film group holes and shapes in one clamping process, it is difficult to reliably and accurately position the formed parts, the alignment of the entire process equipment and the technical problems of laser cutting slag discharge under the gas film group holes on the full surface , using the process equipment of the present invention for laser machining gas film group holes and shapes of multi-ring wave large heat shields, the three-coordinate laser system processing process equipment can realize the adjustable stroke of the horizontal station, thereby solving the problem of the existing three-coordinate laser Due to the problem of insufficient system travel, laser processing of a large number of gas film group holes and shapes in the fan-shaped section of the multi-ring wave heat shield of the aero-engine has been realized in one clamping, ensuring that the position and normal direction of the gas film group holes are perpendicular to the part surface

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