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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Testování technologie on-the-fly přístrojem LaserTRACER / Testing technology on-the-fly instrument LaserTRACER

Vala, Michal January 2017 (has links)
This diploma thesis describes realization and testing on-the-fly measurement using tracking interferometer. This measurement enables to achieve higher amount of measured points and decrease time of machine tool calibration. Calibration and verification values of machine parameters, as well as time of measurement and other details of this method are compared with results of conventional method called trigger. To evaluate the quality of volumetric compensation created from calibration values, we use verification measurement of circular interpolation.
32

Náhon posuvové souřadnice portálového obráběcího centra pomocí pastrorku a hřebene / The drive of the feed coordinate portal machining center through pinion and rack

Malásek, Petr January 2017 (has links)
This thesis is dealing with determining of technical and economical limits of axis X of portal milling machine driven by gear rack and pinion. And designing drive of axis like this. In chapter overview of the current state of knowledge are researched options of drive systems of linear axis, primarily of using ball screw and couple of pinion and gear rack. Basic parameters of axis X portal milling machines, options of measuring, guiding of axis and electric motors. Then the limit suitability of using pinion and gear rack is determined. In next chapters is designed few variations of arrangements of drives and selected the best one. This arrangement is then designed.
33

Analýza typů buzení pro provádění provozní modální analýzy obráběcích strojů / Analyse der Anregungsarten zur Durchführung der Operational Modal Analysis an Werkzeugmachinen

Kratochvílová, Silvie January 2017 (has links)
The aim of this work is to determine the influence of noise on determination of own frequen-cies for machine tool by operational modal analysis. For the assigned machine tool operation-al analysis is performed using Data-Driven and Covariance-Driven method for multiple exci-tation variants. Based on the results are created stabilization diagrams used to determine ma-chine tool own frequencies. The results for each excitation variant are compared to each oth-er and the effect of noise influence on the results is determined.
34

Atypické využití karuselového soustruhu / Atypical use of a carousel lathe

Ondráček, Ivo January 2018 (has links)
The first part of the diploma thesis deals with a brief research of turning operations and the characteristic of vertical lathes with description of individual parts. There are described possibilities and a typical vertical lathe assortment and also representatives of Czech manufacturers of vertical lathes. In the second part, the thesis deals with elaboration of the design technology production of the selected component, including the NC program. First, a component and material is selected, a semi-finished product is designed, suitable machines and tools are selected and finally a technological process of production is developed. The conclusion of the thesis contains the technical–economic evaluation, where the total costs of production are solved.
35

Návrh výroby držáků řízení předního kola pro studentskou formuli TU Brno Racing / Proposal for Control of Manufacture Holders of the Front Wheel for Formula Student TU Brno Racing

Vašek, Lukáš January 2018 (has links)
This thesis deals with the design and production of wheel control holders for the right front wheel of the formula Dragon 4 of TU Brno Racing team. In the theoretical part, the Formula Student competition is described, including the steering holders themselves and description of their function and location. Later the analysis of aluminium and its alloy was made, including description of the CERTAL material of which the holders were made. The practical part includes the design of prototype holders in the Autodesk Inventor CAD software, the design and application of machining strategies in the PowerMILL CAM software. Further, the practical part includes production on milling machines at the MCV 754 QUICK and DECKEL MAHO DMU 50 machining centre. At the end, the dimensional analysis of the part is performed, manufactured holders were compared to the CAD model of the given components and the technical and economical evaluation of the production was made.
36

Multifunkční obráběcí centrum pro rotační i nerotační obrobky / Multifunctional machining centers for machining rotating and prismatic parts

Hlobil, Jaroslav January 2018 (has links)
The content of this master’s thesis is the choice of a suitable concept for the multifunctional machining center for rotary and non-rotating workpieces and design and processing of one structural node of this machine. The structure of the work is divided into three parts. In the first part, the market analysis is carried out from which it follows to the second part and it is the choice of a suitable machine concept. The third part deals with its own design of the constructional structure of this machining center.
37

Racionalizace technologie obrábění / Rationalization of machining technology

Plančar, Jakub January 2018 (has links)
This diploma thesis is focused on a design of rationalization solutions for machining workplace in Siemens Company. The machined pieces are shafts, the basic components of the electric motors. The introductory part of this study describes the theoretical basics of machining technology, especially milling. The next part is focused on the company presentation, the analysis of the existing workplace and its technologies and components. In the following section are selected weaker production sites, and then is presented opportunities for improvement and rationalization of this workplace. Following the elaboration of the selected rationalization solution, along with techno – economic evaluation of the production change, which highlights the results of this study.
38

Náhon posuvové souřadnice portálového obráběcího centra pomocí kuličkového šroubu a matice / The drive of the feed coordinate portal machining center through ball screw

Dvořák, David January 2019 (has links)
Master´s thesis is focused on portal milling machine driven by ball screw and nut. There is a limit where it is suitable to use a driven screw or driven nut. Both variants are solved based on specified X-axis travel distance. In last part is solved the design of support long shaft ball screw driven by nut. The work also includes 3D CAD model of both variants and drawing documentation.
39

Využití netradičních materiálů ve stavbě CNC obráběcích center na nerotační součásti / Use of innovative materials in the construction of CNC machining centers for non-rotational components

Flieger, Vít January 2019 (has links)
This diploma thesis sloves usage of the innovative materials in the construction of CNC machining centers for non-rotational components. There are described innovative materials, machines and parts of these machines at first. Further, there is assigned a suitable material for each part of the machine. For the design part of this thesis is chosen a fixed rack made of polymer concrete for vertical machining center. Finally, the rack and its motion system are designed.
40

Návrh výrobní technologie pro zdvihací zařízení chladiče traktoru / Production technology of a lifting equipment for tractor cooler

Raiskup, Martin January 2019 (has links)
The thesis focuses on production technology of the lifting equipment for a tractor cooler. This device is used in order to ease the installation of a cooler during the manufacturing of a tractor. In the first chapter, various types of the lifting equipment are described. In the following chapters manufacturing methods, machines and tools for the production of the specific component are described. Furthermore, materials and manufacturing processes for the complementation of the specific component are proposed. In the conclusion, the methods for the manufacturing are suggested, the timescale is calculated and the technical-economical evaluation is performed.

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