ntvНаучно-технический вестник информационных технологий, механики и оптикиScientific and Technical Journal of Information Technologies, Mechanics and Optics2226-14942500-0373Университет ИТМО10.17586/2226-1494-2023-23-5-859-870ntv-112Research ArticleОПТИЧЕСКИЕ СИСТЕМЫ И ТЕХНОЛОГИИOPTICAL ENGINEERINGРазработка адаптивной лазерной головки для компенсации погрешности положения перетяжки пучка во время лазерной обработки с использованием метода обнаружения пятна лазерного излученияDevelopment of adaptive laser head for compensating error of beam waist position during processing materials using laser beam spot detection methodhttps://orcid.org/0000-0001-7502-1699РизкиМ. А.RizkiM. A.

Ризки Мухамад Албани — студент 

sc 58038476200 

Санкт-Петербург, 197101 

Muhamad Albani Rizki — Student 

sc 58038476200 

Saint Petersburg, 197101

muhamadalbanirizki@gmail.comhttps://orcid.org/0000-0003-1869-0081ФедосовЮ. В.FedosovYu. V.

Федосов Юрий Валерьевич — кандидат технических наук, доцент 

sc 57194080548 

Санкт-Петербург, 197101 

Yuri V. Fedosov — PhD, Associate Professor 

sc 57194080548 

Saint Petersburg, 197101

Yf01@yandex.ruУниверситет ИТМОРоссияITMO UniversityRussian Federation202313122024235859870Copyright © Ризки М., Федосов Ю.В., 20242024Ризки М., Федосов Ю.В.Rizki M., Fedosov Y.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://ntv.elpub.ru/jour/article/view/112

Введение. Представлены результаты разработки устройства, предназначенного для компенсации погрешности положения лазерного пучка при обработке заготовок. Погрешности, которые возникают при обработке заготовок лазерным пучком, приводят к снижению уровня точности. Погрешности вызваны двумя факторами: наличием вибраций и нестабильным положением перетяжки лазерного пучка. Одной из основных причин нестабильного положения точки фокусировки лазерного пучка является неровная поверхность заготовки, которая приводит к изменению положения перетяжки пучка относительно плоскости обработки. Погрешность положения перетяжки пучка по углу относительно плоскости обработки влияет на точность обработки заготовки. Для уменьшения погрешности в позиционировании перетяжки пучка относительно плоскости обработки, необходимо устройство (система или механизм), способное ее скомпенсировать. Устройство должно обладать способностью адаптироваться к поверхности заготовки. Метод. Таким образом, разработка устройства служит решением проблемы, возникающей при лазерной обработке. Разработанное устройство адаптивной головки лазерного пучка адаптируется к поверхности заготовки для компенсации погрешности положения, стабилизирует положение перетяжки пучка относительно плоскости обработки и уменьшает внутренние вибрации во время обработки заготовки. Головка с фокусирующей оптической системой может перемещаться в трех степенях свободы. Благодаря этому головка может отслеживать форму поверхности и корректировать положение точки фокусировки в соответствии с формой заготовок. Во время работы, чтобы иметь возможность отслеживать положение лазерного пучка на заготовке, устройство оснащено камерой. Выполнен эксперимент с макетом полученного устройства для определения уровня его возможностей. Основные результаты. В результате эксперимента определено, что устройство успешно выполняет свои задачи. Оно обеспечивает удержание лазерного пятна в требуемой точке и постоянное положение лазерного пятна на заготовке так, чтобы искажения его формы были минимальны. Обсуждение. Представленное устройство может быть использовано и применено в качестве системы компенсации погрешности позиционирования лазерного луча при обработке заготовки, а также для совершенствования технологии обработки заготовок с высоким уровнем точности.

The purpose of this research is to develop a device capable of compensating for laser beam positioning error during processing of workpieces. This research is relevant, since several errors occur when processing workpieces with a laser beam, which lead to decrease in the level of accuracy. Two factors lead to these errors, such as the presence of vibrations and unstable beam waist position of the laser beam. It is known that one of the main reasons of unstable beam waist position of the laser beam is uneven surface of the workpiece. When processing a workpiece with a laser beam, the uneven surface of the workpiece causes the beam waist position to change. The position of the beam waist is important because it affects the accuracy of the workpiece. In order to reduce errors in the positioning of the beam waist, a system or mechanism is needed that can compensate for these errors. To achieve this, the system or mechanism must have ability to adapt to the surface of the workpiece. Thus, the development of the device in this study is a solution to the problem that arises during laser processing. In this research, an adaptive laser beam head device is designed which has adaptive capabilities to the surface of the workpiece so that it can compensate for position errors, stabilize the beam waist position, and reduce internal vibrations during workpiece processing. The laser beam head in this research can move in 3 degrees of freedom. With this ability, the laser beam head can move to follow the surface shape and adjust the beam waist position to the workpieces. During operation, to be able to track the position of the laser beam on the workpiece, the device is equipped with a camera. In this research, an experiment with mockup of this device was conducted to determine the level of its capabilities. From the experiment, it can be concluded that device is performing its objectives successfully. It can maintain the position of the laser beam waist on the surface of workpiece with a relatively high level of accuracy. This is evidence by the relatively low error rate. In general, this device can be used and implemented as a system for compensating the positioning error of the laser beam during workpiece processing and also can be implemented to improve the technology of workpiece processing with a high level of accuracy.

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The authors declare that there are no conflicts of interest present.