System and method for processing micro conical bore by rotation of laser beam

Abstract

The invention discloses a system and a method for processing a micro conical bore by rotation of a laser beam. The system comprises a laser generating unit, a laser deflection unit, a laser rotating unit, a taper control unit and a laser processing unit; the laser generating unit is used for generating a beam of short-pulse laser and sending the short-pulse laser to the incident end of the laser deflection unit; the laser deflection unit is used for sending the short-pulse laser to the incident end of the laser rotating unit by the exit end of the laser deflection unit after carrying out deflection on the short-pulse laser; the laser rotating unit is used for rotating the laser beam and transmitting the laser beam to the incident end of the taper control unit by the exit end of the laser rotating unit; and the taper control unit is used for correcting a horizontal distance between the laser beam and an optical axis and then transmitting the laser beam to a processed workpiece on the laser processing unit by the exit end of the taper control unit. The invention can overcome the technical defects of conventional processing means of processing a fine round hole in a mechanical and electric spark manner and the like and completely avoids the defects of a great number of burrs, difficulty in control on the accuracy, poor reliability and the like of a current fine conical bore.

Description

technical field [0001] The invention belongs to the technical field of lasers, in particular to a system and a method for machining tiny conical holes by rotating laser beams. Background technique [0002] Modern manufacturing technology is one of the important means for a country to develop its economy, and it is also an important basis for measuring the level of a country's industry. From the current point of view, the development of modern manufacturing technology mainly presents two trends: one is the computer integrated manufacturing technology that pursues the automation of the manufacturing system; the other is the micro-mechanical manufacturing technology that seeks the limit of the micro-processing of the manufacturing system. [0003] With the development of the national economy and science and technology, people have higher and higher requirements for product miniaturization and precision. As one of the two major trends in the development of modern manufacturing t...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a system and method for laser beam rotary machining of tiny conical holes, which uses ultra-short pulse laser rotary micromachining to make fine round holes, which can solve traditional mechanical and electrical problems. The technical defects of spark machining fine round holes and other processing methods have completely changed the current shortcomings of fine conical holes with many burrs, difficult control of precision and low reliability.

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