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Design of lathe for wood
Kuchař, Tomáš ; Tůma, Jiří (referee) ; Pavlík, Jan (advisor)
The bachelor thesis deals with the construction of a wood lathe. In the thesis market research is carried out, on the basis of which the parameters of the lathe are proposed. Furthermore, it contains a theoretical description of wood machining, selection of the most suitable design for each structural node based on multi-criteria weighted selection, followed by the necessary calculations for the design of the wood lathe and at the end of the thesis the whole design is described in detail. Drawings of selected structural nodes are included in this work.
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Digital twin of machine tool
Klíč, Daniel ; Štěpánek, Vojtěch (referee) ; Tůma, Jiří (advisor)
Digital twin is virtual model of real object or process, which its functions and operations can be simulated.This thesis focuses on the creation of a digital twin of axis movements on a three-axis CNC milling machine MCV Quick 754, which is located in the laboratories of the Institute of Production Machines, Systems and Robotics at Brno University of Technology. The creation of the digital twin was carried out in Autodesk Inventor, in which the models were processed, in Adams View, in which the kinematic chain and the forces acting on the mechanical part of the machine were created. The whole assembly was exported for use in Matlab Simulink. In Matlab Simulink the drives and their control were created and the required positions and speeds were specified. The runs of the measured quantities on the real machine were compared with the simulation and the resulting values were in relative agreement.
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Design of large format milling machine
Ďurovec, Mikuláš ; Štěpánek, Vojtěch (referee) ; Tůma, Jiří (advisor)
The subject of bachelor thesis is to design and construction of a large-area CNC milling machine for machining large polypropylene boards. First part defines the CNC machine, types of milling machines and the availability of machines on the market. The practical part is focused on the design and construction of a CNC milling machine, including the creation of drawing documentation.
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Design of the hobby CNC milling machine
Hrala, Adam ; Tůma, Jiří (referee) ; Štěpánek, Vojtěch (advisor)
The focus of the bachelor's thesis concerns the design of a CNC model milling machine. It includes a representation of the kinematics of individual types, operating systems for these machines, hazard analysis and market research. In the second part there is a design of the overall device from the point of view of the drive and guidance of individual axes, the electronics used and a design of the machine structure supplemented by a drawing of the assembled device.
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Design of spindlespeeder
Závada, Otakar ; Pavlík, Jan (referee) ; Tůma, Jiří (advisor)
This bachelor thesis deals with conceptual design of high speed spindle based on cutting conditions. Research part of thesis describe each types of high speed spindle based of their drive. Next chapter are documented cutting conditions which are corresponded with experience. High speed spindle faced these act most of the time. Cutting conditions show output conditions of planetary gearbox which is described in next part of thesis. All the experience are used in conceptual design. The drawings contains of assambly drawing and drawing of selected components. The drawings are based on model made in 3D CAD system
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Design of composite isolator winder
Menšík, Martin ; Tůma, Zdeněk (referee) ; Tůma, Jiří (advisor)
The aim of this master thesis is the construction of a single-purpose machine used for reeling of composite insulator. In the first part is described the technology of reeling completed by the analysis of used components. Based on the findings, the final constructional version with necessary calculations is stated. The result of this thesis is a 3D model of the chosen design together with drawings and calculations of given parts.
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Design of small turning machine C axe
Hermanský, Dominik ; Tůma, Jiří (referee) ; Blecha, Petr (advisor)
The subject of my bachelor´s thesis is design of C-axis for small turning machine. First part include definition of main terms and research in C-axis used for turning machines and turning centres. Next part is about cutting forces during the machining, choice of drive and breaking system for C-axis. Following part deals with creating 3D model of C-axis with turning spindle. The drawing of assembly is the last part of my thesis.
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Design of spindle for lathe
Novotný, Timotej ; Tůma, Jiří (referee) ; Pavlík, Jan (advisor)
The diploma thesis deals with the design of headstock of turning center. The introduction of the work is devoted to a brief description of turning centers and detailed description of individual parts of headstock. The main part of the work consists of determining the characteristics of the headstock, calculations necessary for design and dimensioning and calculations using the finite element method. The result of the work is a 3D model of the designed headstock and drawing documentation.
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A design of self-centering steady rest for CNC lathe
Mjartan, Lukáš ; Pavlík, Jan (referee) ; Tůma, Jiří (advisor)
The subject of this bachelor thesis is the design of a self centering lunette for a CNC lathe. In the beginning of the thesis the problem of clamping on the lathe is analysed. In the next part, research of lunettes available on the market is made. The following section describes the design of the main parts of the lunette. Based on calculations, a 3D model is created. The thesis concludes with an evaluation of the design with emphasis on the possible future production and operation of this device.
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A design of single-purpose saw
Rakhmatullin, Artem ; Štěpánek, Vojtěch (referee) ; Tůma, Jiří (advisor)
This thesis focuses on the design of a single-purpose saw for cutting grooves on aluminum profiles. The work includes the examination of different types of saws, the examination of various design alternatives, the identification and selection of the most advantageous variant, the subsequent creation of a detailed design based on the chosen solution and a comprehensive evaluation of the resulting design. The desired result is a saw design that prioritizes factors such as ergonomic comfort, safety, precision and operational efficiency, ensuring a complete and efficient solution.
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