Rekonstrukcija pogonskega sistema za CNC stroj

Krek, Andraž (author), Klemenc, Jernej (mentor)

V magistrskem delu je predstavljena rekonstrukcija podajalnih osi vodoravnega vrtalno-rezkalnega stroja iz začetka 70. let prejšnjega stoletja. Stroj je bil v preteklosti že predelan iz NC v CNC stroj, vendar je pogonski motor za podajalne osi ostal skupen. V sklopu dela je bilo potrebno razumevanje tehnoloških procesov vrtanja in rezkanja, kar nam je skupaj z obstoječim glavnim vretenjakom in konstrukcijo stroja postavilo okvirne meje novih karakteristik podajalnih osi stroja. Rekonstrukcija zajema nove pogonske motorje podajalnih gibanj, ustrezna pripadajoča jermenska gonila z zobatim jermenom in dodatne sestavne elemente, ki jih takšna rekonstrukcija potrebuje. Predstavljene rešitve omogočajo medsebojno neodvisne pomike treh podajalnih in ene nastavne osi. Nadgradili smo tudi rotacijsko zaznavalo nastavne osi B na digitalno rotacijsko zaznavalo, povezano s krmiljem. Tako je stroju omogočeno obdelovanje obdelovancev v štirih oseh, pri čemer lahko opravlja pomike v obliki raznih krivulj v prostoru. Nove karakteristike podajalnih osi so primerne za uporabo stroja v orodjarstvu.

• Language: Slovenian
• Keywords: CNC obdelovalni stroji, predelava, podajalni pogoni, zobati jermeni, preračuni, podajalne osi, rotacijska zaznavala
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [A. Krek]
• Year: 2019
• Number of pages: XXV, 74 str.
• PID: 20.500.12556/RUL-107884
• UDC: 621.952:621.85(043.2)
• COBISS.SI-ID: 16658971
• Publication date in RUL: 02.06.2019

Secondary language

• Language: English
• Title: Reconstruction of drive system for CNC machine

Abstract

In the master thesis part reconstruction of the feed axes of the horizontal drilling and milling machine from the beginning of the 1970s is presented. The machine was previously modified from the NC to the CNC machine, but the drive motor for the feed axes remained the same. As part of the work, it was necessary to understand the technological processes of drilling and milling, which together with the existing main spindle and the construction of the machine set the boundary limits of the new characteristics of the feed axes. In the scope of this modification new driving motors of feeding motions, the corresponding associated belt drives with toothed belts and additional component elements required by such a reconstruction were installed. The presented solutions allow for independent movements of the three feeders and one teaching axis. We also upgraded the rotational sensor of the set axis B to the digital rotary sensor connected to the control. Thus, the machine is capable of machining workpieces in four axes, whereby it can perform shifts in the form of various curves in the space. The new characteristics of the feed axes are suitable for using the machine in tooling.

• Keywords: CNC machining machines, reconstructions, feeders, toothed belts, conversions, feed axes, rotary sensors