INVESTIGATION OF THE INFLUENCE OF PARAMETERS OF ELASTIC ELEMENTS OF A NEW DRILLING TOOL DESIGN ON THE DRILLING DEPTH OF LDsTP

UDC 674.055:621.95

  • Anikeenko Andrey Fedorovich − PhD (Engineering), Assistant Professor, the Department of Woodworking Machines and Tools. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: dosy@belstu.by

  • Mashoripova Tatiana Aleksandrovna − PhD student, the Department of Woodworking Machines and Tools. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: t.a.mashoripova@mail.ru

DOI: https://doi.org/10.52065/2519-402X-2021-246-43-333–339

Key words: design, improvement, particle board, drilling, drill.

For citation: Anikeenko F. A., Mashoripova T. A. Investigation of the influence of parameters of elastic elements of a new drilling tool design on the drilling depth of LDsTP. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2021, no. 2 (246), pp. 333–339 (In Russian).DOI: https://doi.org/10.52065/2519-402X-2021-246-43-333–339.

Abstract

The article describes a new design of a drilling tool with the use of elastic elements for drilling through holes in laminated chipboard. This design allows you to mechanically change the feed rate directly during the processing of laminated chipboard, thereby preventing the appearance of chips on the surface of the brittle layer (laminate) of the board.

The design involves the use of compression springs with different stiffness coefficients in the drilling tool. During the introduction of the drill into the solid laminated part of the plate, the feed rate decreases due to the actuation of the springs, which are loaded at this time.

Advantages of the design: with a decrease in the feed rate, the formation of chips at the inlet and outlet of the laminated board is minimal. The change in the feed rate does not occur at the program level, which entails writing a simpler program for processing the workpiece; simplicity of manufacturing the structure; small dimensions of the structure.

Due to the compression of the elastic elements, the feed rate is reduced and the deepening of the drilling tool into the processed material is limited. In this regard, in this work, the depth of the drilled hole was calculated depending on the stiffness of the elastic elements.

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References

  1. Volynskiy V. N. Tekhnologiya drevesnykh plit i kompozitnykh materialov [Board technology and composite materials]. St. Petersburg, Lan’ Publ., 2010. 336 p.
  2. Bershadski A. L. Raschet rezhimov rezaniya drevesiny [Сomputation of cutting wood]. Minsk, Vysheyshaya shkola Publ., 1966. 176 p.
  3. Tsukanov Yu. A., Amalihskiy V. V. Obrabotka rezaniyem drevesnostruzhechnykh plit [Chipboard cutting]. Moscow, Lesnaya promyshlennost’ Publ., 1966. 94 p.
  4. Lyubchenko V. I. Rezaniye drevesiny i drevesnykh materialov [Cutting wood and wood material]. Moscow, Lesnaya promyshlennost’ Publ., 1986. 296 p.
  5. Anikeenko A. F., Grishkevich A. A., Garanin V. N. The influence of the elements of the mode of drilling laminated chipboard on the surface quality. Trudy BGTU [Proseedings of BSTU], issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2017, no. 2 (198), pp. 391–394 (In Russian).
  6. GOST 18793-80. Pruzhiny szhatiya. Konstruktsiya i razmery [Compression springs. Design and dimensions]. Minsk, Standartinform Publ., 1992. 88 p. (In Russian).
  7. Sverlil’nyy instrument [Drilling tools]. Available at: https://www.leuco.com/RU/RU/Boring_Bits (accessed 22.03.2021).
  8. Sverla [Drills]. Available at: https://leitz.by/index.pl?act=SECTION&section=sverla (accessed 22.03.2021).
  9. Sverla [Drills]. Available at: https://faba78.ru/products/category/sverla (accessed 22.03.2021).
  10. Sverla dlya prisadochnykh stankov [Drill bits for filler machines]. Available at: http://freud-catalog.ru/catalog/376/692/index.htm (accessed 22.03.2021).
  11. Sverla dlya derevoobrabotki [Drills for woodworking]. Available at: https://www.stanki.by/catalog/svyerla/ (accessed 22.03.2021).
  12. GOST 22057–76. Sverla spiral’nyye derevorezhushchiye. Tekhnicheskiye usloviya [Wood-cutting spiral drills. Specifications]. Moscow, Izdatel’stvo standartov Publ., 1978. 21 p. (In Russian).
  13. GOST 10902–77*. Sverla spiral’nyye s tsilindricheskim khvostovikom. Tekhnicheskiye usloviya [Spiral drills with a cylindrical shank. Specifications]. Moscow, Izdatel’stvo standartov Publ., 1977. 23 p. (In Russian).
  14. Grube A. E. Derevorezhushchiye instrumenty [Woodworking tools]. Moscow, Lesnaya promyshlennost’ Publ., 1971. 344 p.
  15. Glebov I. T. Obrabotka drevesiny na stanke s CHPU [Wood processing on a CNC machine]. Yekaterinburg, UGLTU Publ., 2018. 142 p.
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