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Machining of flat-shaped components on CNC machines
Fridrich, Tomáš ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis deals with machining of flat shaped components using CNC machines. In the theoretical part, the characteristics of CNC machines, NC programming and various methods of workpiece clamping are presented. It is followed by an overview of some Czech and foreign vertical machining centres with traverses only in X, Y and Z axes. Furthermore, an analysis of suitable technological operations for the production of flat-shaped parts is made. The last theoretical chapter deals with flat-shaped components and their division. The practical part of the bachelor thesis is focused on the creation of the NC program and the production procedure of the sample product, the compilation of data into the technological preparation of the production and the evaluation of the production.
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Safety assessment of an operating Haas VF-2SSYT machining centre
Hochman, Jan ; Blecha, Radim (referee) ; Blecha, Petr (advisor)
This thesis focuses on the safety assessment of a CNC machining centre. In the introductory part the current requirements of the European Union and Czech legislation are summarized. This is followed by a systematic analysis of the issues and an analysis of good engineering practice. The second part of the thesis is devoted to the safety assessment of the production equipment itself. On the basis of checklists, potential risks are identified, which are subsequently analysed and evaluated.
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Safety assessment of NHX5500 DMG MORI machining center
Novotný, Petr ; Blecha, Radim (referee) ; Blecha, Petr (advisor)
The diploma thesis deals with legislative purposes for the operation of machinery in the Czech Republic and the European Union. It deals with the analysis of technical standards of machinery, specific machining centers. The analysis of the risky machining center NHX 5500 DMG Mori is based on this. The result of the work is the minimization of ongoing risks and meeting the legal requirements of the state of the operated machining center.
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Rotary drive system for living tool
Matyáš, Ondřej ; Marek, Jiří (referee) ; Marek, Tomáš (advisor)
The work shows us the basic division of the rotary náhonové system of CNC machines. The first part of the work of this thesis refers to the fundamental distribution of the Rotational náhonové system, i.e. tool and workpiece. Another part is the distribution according to the method of drive, the rotary actuator and directly driven.
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The Rationalization of Production Part of Injection Pump
Havel, Marian ; Prokop, Jaroslav (referee) ; Osička, Karel (advisor)
This thesis focuses on the rationalization of the production process of plungers and elements of injection pumps in relation to improving the quality of the final products. Today’s technology, which mainly uses single-purpose machines where the production quality markedly depends on the abilities and activities of the operator, will replaced by modern machining centres and CNC machines for grinding all functional parts of the plungers, coupled with modern measuring devices. These production machines with the support of measuring devices will improve the productivity of production and the general quality of the produced components.
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Large Turning Centres
Nábělková, Irena ; Jaroš, Zdeněk (referee) ; Blecha, Petr (advisor)
This bachelor's thesis is dedicated to large turning centres. The first part thesis is the summary of large turning centres, their description and types. Usage possibilities of different large turning centres in cutting operations are mentioned too. In the second part, the calculating proposition of a chosen component of large turning centre is solved. This component is spindle-drive. Calculating proposition contains calculation of cutting force, power, total efficiency, utile work and energy.
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