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Design of cartridge spindle for turning machines
Žádník, Lubomír ; Tůma, Jiří (referee) ; Pavlík, Jan (advisor)
The diploma thesis deals with the design of a built-in headstock of a turning center. The aim of the work is the design of a spindle for machines up to 10 kW. The spindle is driven by a two-speed gearbox and a belt drive. In the introduction, the work deals with the description of individual parts of the turning headstock. A design proposal is performed, accompanied by a number of technical calculations. The result of the work is a 3D model, drawing documentation and calculation report.
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Design of tool turret for CNC lathe
Velič, Samuel ; Pavlík, Jan (referee) ; Tůma, Jiří (advisor)
Bachelor thesis describes the design of tool turret for CNC lathe and is divided into the search, computation and construction part. The purpose of the search is to introduce the reader to the issue of automatic tool exchange. It also describes the actions that the turret has to handle and the mechanisms by which these actions are performed. The calculation part deals with the diameter of the shaft of system, specified minimum torque characteristics of the drive and the design bearings of the system. The construction part is based on the computations. Using the data obtained from the computational part is according to the norm DIN 8869 designed the 3D model of the turret, type disc, which is completed with drawing documentation of selected parts.
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Design of additional grinding spindle for universal lathe
Denk, Marek ; Pavlík, Josef (referee) ; Pavlík, Jan (advisor)
This bachelor’s thesis deals with the design of an additional grinding spindle for universal lathe. The first part is a research focused on the problematics, especially on the basic parts of the spindles and their proper function. The second part includes preliminary proposal, necessary calculations and valorization of the final solution including an analysis of constructional, technological and economical aspects of the grinding spindle and all assembly. This thesis also includes a 3D model created with Autodesk Inventor Professional 2015 and drawing documentation.
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Design of special extruder for 3D printing
Maňák, Juraj ; Vetiška, Jan (referee) ; Pavlík, Jan (advisor)
The bachelor thesis focuses on the design of a print head for 3D printing of cement mixtures. The work discusses current 3D concrete printing technologies, concrete transport options, and the properties of concrete mixes and admixtures. Next, three conceptual printhead solutions and two shaft bearings are proposed. Using multi-criteria analysis, the resulting variant is selected and it is structurally processed. The designed printhead allows continuous printing and mixing of the cement mixture and admixture of the setting accelerator.
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Insurance Protection of a Selected Business Entity
Pavlík, Jan ; Toman,, Petr (referee) ; Ptáček, Roman (advisor)
The aim of the master‘s thesis is to design the optimal insurance protection of a business entity. The work is divided into several parts. In the first part I deal with the methodology of work, theories and legal regulation of insurance of business entities in the Slovak Republic. In the second part, I analyze the current form of insurance protection of a business entity, I solve the risk analysis of the company and I look for the main risks of the entity with respect to its economic activity. I also analyze the current form of insurance protection and look for shortcomings or unnecessarily insured risks that the company does not need. In addition, I verify the accuracy and timeliness of all data on insurance contracts. In the design part, I will recommend the company's management to modify existing contracts and propose a new optimized insurance coverage. Taking into account the price and quality of current contracts, the possibility of modifications, extensions and newly offered products, I will recommend the continuation of existing contracts with possible modifications or entering into new contracts.
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Design of spindle for a small lathe
Šatný, Patrik ; Tůma, Zdeněk (referee) ; Pavlík, Jan (advisor)
The thesis deals with the design of a headstock for a small lathe. The first part of the thesis deals with the description of individual structural nodes related to the construction of machine tools headstock. The second part includes an overview of similar machines available on the market. The final part deals with the calculation of necessary parameters, the verification of results using the finite element method and the construction of the proposed headstock. Based on the designed construction is created 3D model and drawing documentation.
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Design of machines for laser and plasma cutting
Fryčová, Martina ; Pavlík, Jan (referee) ; Holub, Michal (advisor)
The aim of the thesis is the design machines for laser cutting and plasma workspace 2.0 x1, 8 meters. The work described technology laser cutting and plasma and the resulting demands on the machine. Longer work includes a search of design solutions, then the actual design, including the necessary calculations and drawings.
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Automatic tool change systems in construction of machining centers
Labounek, Dalibor ; Pavlík, Jan (referee) ; Blecha, Petr (advisor)
Automation tool change is a major factor that affects the overall level of factory automation machinery. Due to its large number of tools for machining, the system of automatic tool change (hereinafter referred to as "AVN") address one of the first questions. The help of the AVN minimize secondary production times and operator intervention while increasing productivity. With that is also linked to higher safety and minimizing human error. AVN systems expand opportunities working in the engineering industry, which is positively reflected in the price. The theme of the present thesis deals with the analysis of the problems of automatic tool change in the structure of machining centers.
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Design of single-purpose machine for machining polyurethane castings
Sýkora, Petr ; Pavlík, Jan (referee) ; Tůma, Zdeněk (advisor)
The aim of this diploma thesis is to design a single-purpose machine for machining steering wheel lever from PUR. The problem with the current state was the need of manpower for machine a large number of levers. The automated machining process eliminates the problem. The result of the work is a detailed 3D model of a single-purpose machine created in the Onshape program, drawing documentation of several parts of the equipment, economic evaluation and risk analysis of the machine. The conclusion of the thesis contains an evaluation of the whole project.
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Description of CNC milling and grinding machines
Nešpor, Pavel ; Pavlík, Jan (referee) ; Blecha, Petr (advisor)
Graduation from the Bachelor course at Faculty of Mechanical Engineering is finished by the thesis, which is focused in division of machine tools, further dealing with more detailed description of main types and features of sub-groups CNC milling and grinding machines. The thesis also includes progress of numerically controlled machines and comparison with present-day computer controlled machines. In the end the essay lists domestic and foreign producers of CNC machines and describes contemporary trend in their production.
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