The research objective is to study the development of the noise spectra patterns in the operating area of copy mill operators. The experimental studies have shown that among harmful factors spe-cific to these machines, there is an octave sound pressure level increase up to 15 dB in the idle mode and up to 15 dB under woodworking. These data suggest that the main noise source creat-ing excess over the maximum permissible values is a spindle unit, and in particular, the spindle case. The vibration measurements on the machine carrier system have confirmed the results of the noise monitoring. The main source of the increased vibration levels for these machine tools is spindle rolling-contact bearings.
noise, vibration, operating area, noise levels, spindle, copy miller.
Среди группы фрезерующих деревообрабатывающих станков изучены виброакустические характеристики пильных [1–3], рейсмусовых, фуговальных [4–6] и модельных станков [7–10]. Однако, несмотря на то, что компоновка несущей системы деревообрабатывающих станков во многом идентична, копировально-фрезерные станки имеют существенные отличия, заключающиеся в значительно более высоких частотах вращения шпинделей, а также в их количестве. В частности, частота вращения одношпиндельного станка составляет 12 000 об/мин, а восьмишпиндельного — 10 000 об/мин на каждом шпинделе.
1. Li, A.G., Vinogradova, G.Y., Chukarin, A.N. Eksperimental´nyye issledovaniya protsessa gidroobespylivaniya rabochey zony kruglopil´nykh i lentochnopil´nykh stankov orosheniyem tumanom. [Experimental studies on hydrodedusting of circular and band saws working site by mist irrigation.] Vestnik of DSTU, 2004, vol. 4, no. 4, pp. 469-473 (in Russian).
2. Li, A.G. Realizatsiya protsessa gidroobespylivaniya orosheniyem tumanom zony pileniya kruglopil´nykh i len-tochnopil´nykh derevoobrabatyvayushchikh stankov. [The implementation of hydrodedusting process of circular and band saw woodworking machines by mist irrigation.] Tekhnicheskaya kibernetika, radioelektronika i sistemy upravleniya: Tr. Vseros. nauch. konf. [Technical cybernetics, radio electronics and control systems: Proc. All-Russian Sci. Conf.] Taganrog: TRTU, 2004, pp. 340 (in Russian).
3. Vinogradova, G.Y., Li, A.G., Tsvetkov, V.M. Eksperimental´nyye issledovaniya vibroakusticheskikh kharakteristik derevoobrabatyvayushchikh stankov. [Experimental studies on vibro-acoustic characteristics of woodworking machines.] Life Safety, 2005, no 6, pp. 40-43 (in Russian).
4. Tsvetkov, V.M., Meskhi, B.C. Eksperimental´nyye issledovaniya shuma, vibratsii i zapylennosti v rabochey zone derevoobrabatyvayushchikh stankov frezernoy gruppy. [Experimental studies on noise, vibration and dustiness in the operating area of woodworking milling machines.] Bezopasnost´ zhiznedeyatel´nosti, okhrana truda i okruzhayushchey sredy: Mezhvuz. sb. nauch. tr . [Life safety, labor and environment protection: Interuniversity coll. sci. papers.] Rostov-on-Don: RGASM, 2004, iss.8, pp. 107-108 (in Russian).
5. Tsvetkov, V.M. Razrabotka metodiki optimizatsii parametrov protsessa ochistki vozdukha ot drevesnoy pyli derevoobrabatyvayushchikh stankov frezernoy gruppy. [Development of parameters optimization technique for cleaning air from wood dust of woodworking milling machines.] Tekhnologicheskaya kibernetika, radioelektronika i sistemy upravleniya. Tr. Vseros. nauch. konf. [Technological cybernetics, electronics and control systems: Proc. All-Russian Sci. Conf.] Taganrog: TRTU, 2004, pp. 346-347 (in Russian).
6. Meskhi, B.C., Chukarin, A.N., Tsvetkov, V.M. O raschete urovney shuma v rabochey zone operatorov metallo- i derevoobrabatyvayushchikh stankov frezernoy gruppy. [On calculation of noise levels in the work area of operators of metal- and woodworking milling machines.] Vestnik of DSTU, 2004, vol. 4, no. 1 (19), pp. 92-98 (in Russian).
7. Romanov, V.A., Chukarin, A.N., Flek, B.M. Utochneniye metodov rascheta vibratsii shpindel´nykh babok frezernykh i sverlil´nykh derevoobrabatyvayushchikh stankov. [Analysis technique refinement of spindle head vibration of milling and drilling woodworkers.] Vestnik of DSTU, 2013, vol. 13, no. 1-2 (70-71), pp. 86-92 (in Russian).
8. Bulygin, Y.I., Panchenko, Y.I., Romanov, V.A., Denisov, O.V. Povysheniye effektivnosti obespylivaniya vozdukha rabochikh zon metalloobrabatyvayushchikh i derevoobrabatyvayushchikh proizvodstv. [Increase of air dedusting effectiveness in functional zones of metal- and woodworking productions.] Vestnik of DSTU, 2013, vol. 13, no. 7-8 (75), pp. 49-57 (in Russian).
9. Romanov, V.A. Eksperimental´nyye issledovaniya protsessa ochistki vozdukha ot drevesnoy pyli v sharovom tsi-klone derevoobrabatyvayushchikh stankov model´noy gruppy. [Experimental study on air purification process from wood dust in the spherical cyclone of woodworking pattern machines.] Innovatsionnyye tekhnologii v mashinostroyenii i metal-lurgii: V mezhdunar. nauch.-prakt. konf. [Innovative technologies in machine building and metallurgy: V Int. Sci.-Pract. Conf.] Rostov-on-Don, 11-13 September, 2013, pp. 268-277 (in Russian).
10. Romanov, V.A. Sistema pyle- i shumozashchity samodel´nykh derevoobrabatyvayushchikh stankov. [The sys-tem of dust and noise protection of pattern woodworking machines.] Innovatsionnyye tekhnologii v mashinostroyenii i me-tallurgii: V mezhdunar. nauch.-prakt. konf. [Innovative technologies in machine building and metallurgy: V Int. Sci.-Pract. Conf.] Rostov-on-Don, 11-13 September, 2013, pp. 278-280 (in Russian).
