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Realization of educational problem based on experimental apparatus with cam mechanism
Tomeček, Vojtěch ; Vrbka, Martin (referee) ; Vaverka, Michal (advisor)
Bachelor's thesis is focused on solving educational problem based on experimental apparatus with cam mechanism. The task of the educational problem is to teach students to analyse kinematic quantities of cam followers. The thesis contains general discourse on the topic of cam mechanisms and basic terms definition. This is followed by putting the device into service, eliminating its particular imperfections, analysis of kinematic quantities of various combinations of available cams and followers and definition of methodics of the educational problem. The educational problem itself follows the presentation and commentary of gained results. At last some recommendations for the future modifications of the experimental apparatus are given followed by foreshadow of its eventual future usage.
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CNC pocket milling of aeronautical alloys
Wiecková, Kateřina ; Sedlák, Josef (referee) ; Ohnišťová, Petra (advisor)
The aim of the work is to generate and verify pocket milling technology in aviation alloy 7475-T7351 with respect to machine time, surface and machining productivity. First part of the work is theoretical analysis of cycles of milling of simple and complex pockets. Next part of the work is focused on the desing and optimization of strategy of milling of simple and complex pockets in CAM programs and its experimental verification.
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Valvetrain of Compression-ignition Tractor Engine
Mikula, Vojtěch ; Janoušek, Michal (referee) ; Drápal, Lubomír (advisor)
This bachelor thesis deals with the main types and parts of the valvetrain systems of four-stroke engines. In the first part of the thesis are presented the most widely used versions of valvetrains and their use in the tractor engines. In the next part of the thesis is performed the construction and stress calculation of the valvetrain according to proposed proportions.
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CAD System for 2D Drawing
Murín, Michal ; Chudý, Peter (referee) ; Kršek, Přemysl (advisor)
The Bachelor´s thesis is aimed at the design and creation of CAD system for 2D drawing. It introduces the use of computers in manufacturing and the advantages the use of computers brings, general definition of CAD systems and requirements imposed on them. The thesis contains the design of generated CAD system, and as a practical part it introduces implementation of the designed application. Finally it summarizes what has been achieved in developing and what could potentially be achieved in further expansion of the application in the future.
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Virtual commissioning of the machining workplace
Valach, Tomáš ; Štěpánek, Vojtěch (referee) ; Bražina, Jakub (advisor)
This diploma thesis deals with virtual commissioning of production system for robotic milling, which is located in the laboratories of the Institute of Production Machines, Systems and Robotics at the BUT. In the theoretical part of this thesis is described the issue of virtual commissioning, uses of robot systems in milling operations and software usable for virtual commissioning. Practical part of the thesis contains description to creating CAM operations, the creation of 3D model of workplace and PLC program and its HMI. Programs Fusion 360, Robot studio 2021, TwinCAT and OPC UA were used for the actual implementation.
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Software for Data Processing and Control of CNC Machine
Kraicinger, Lukáš ; Rozman, Jaroslav (referee) ; Šátek, Václav (advisor)
The thesis focuses on the design and impelementation of a control system for a CNC machine producing gears with specific integrated CAM system. The study includes practical verification of system functionality, which includes the design and creation of an electronic circuit on this machine. A prototype of a 6-axis machine is being developed at the Faculty of Mechanical Engineering BUT in Brno as a master thesis simultaneously with the creation of this term project. It is a compact automated gear producing machine (all in one) which requires only appropriate semifinished product and correctly set parameters of teeth using the touch screen on the machine.
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Comparison of roughing strategies in various CAM softwares
Hrabovský, Adam ; Sedlák, Josef (referee) ; Zouhar, Jan (advisor)
Bachelor’s thesis deals with roughing strategies especially with those included in chosen CAM software. The initial part states the common information about the effects on precision of machining and tool load. Next chapter deals with methods of machining and their resulting requirements on construction of the machine. It is followed by the description of new roughing strategies and their utilization; also roughing tools were selected for machining of specified models of mold parts, made of steel and aluminium alloy. In the practical part, roughing strategies were applied to stocks which were subsequently compared by the machining times.
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Analysis of Material Flow During Cam Forging
Kopečný, Adam ; Lidmila, Zdeněk (referee) ; Řiháček, Jan (advisor)
The diploma thesis deals with the optimization of final position of overlaps on a forged cam. This part is manufactured in Šroubárna Kyjov, spol. s r.o. The cam is made from ČSN 14 109 (100Cr6) steel. The thesis is focused on the optimization of overlaps arising due to pressed burrs on the edges of the semifinished forging. Currently, the final position of these overlaps is very close to the edge of the pre-forged hole of the cam. Undesired chipping of material occurs during machining of the hole to the exact dimension. The final position of the overlaps is optimized by using the numerical simulation in Simufact Forming 15.0, including a verification simulation for optimal parameter settings. Various diameters of semifinished products, turned tools, and modification of shapes of the tools are tested in the thesis to prevent occurrence of the overlaps in undesired positions.
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