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Parametres of 3D printing of concrete
Navrátil, David ; Szabari, Mikuláš (referee) ; Kočiš, Petr (advisor)
The bachelor thesis deals with the investigation of 3D printing parameters of concrete in the context of minimizing imperfectly homogenized mixtures with known printing methods. The first part of the thesis is devoted to the research, which is divided into three parts. In the first part of the research is a topic dealing with known technologies of 3D printing from concrete. The second part of the research is devoted to the description of the individual components of 3D printing equipment. As the last part of the research is the determination of basic parameters of 3D printing from concrete, including their description. The second part of the thesis starts with the system analysis and formulation of the problem. This is followed by a listing of the identified parameters of the printers offered by the selected companies. Then, a multicriteria analysis was performed to decide on the printer with optimal parameters, which are associated with minimizing the waste of the imperfectly homogenized mixture. The thesis concludes with a discussion of the possible continuation of the problem, together with its own recommendations for practice.
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Design of end effector for automatic threading
Jiříček, Lukáš ; Kočiš, Petr (referee) ; Szabari, Mikuláš (advisor)
This bachelor’s thesis is focused on the design of the end effector intended for threading. The end effector should allow for position compensation and automatic tool change. It should be designed for cutting internal threads from size M5 to size M10 using taps. The weight of the end effector structure should not exceed 10 kg. At the beginning of the thesis, research was conducted in the field of end effectors. Furthermore, an analysis of the problem of threading was carried out. In the next part of the thesis, two variants of the end-effector solution were designed, from which the more advantageous solution was selected based on a multi-criteria analysis. A design and calculations were also made for this solution. An assembly drawing and production drawings of selected components were made to represent the design of the effector. At the end of the thesis, an economic evaluation of the end effector was made.
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Optimization of the technical-technological process of the mechanical workshop with partial robot design
Dlask, Vítek ; Kočiš, Petr (referee) ; Knoflíček, Radek (advisor)
The aim of this diploma thesis is to optimize the production process of the mechanical workshop for the company KNORR - BREMSE Systémy pro užitková vozidla ČR, s.r.o. The objective is to shorten the secondary production time periods and reduce the production area for individual workplaces. After the analysis of the existing state of the mechanical workshop, production was optimized by replacing the machines with new ones supplemented by the automatic rebuilding of technological pallets and partial automation of the production process by using robotic workstations. The new solutions were then critically evaluated in the final part of the thesis. The thesis includes drawings of the new plan of the mechanical workshop and the individual robot workstations.
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Design of a robotic cell for a growth chamber in a container
Dobrovolná, Lucie ; Knoflíček, Radek (referee) ; Kočiš, Petr (advisor)
This thesis deals with the design of a robotic system for a growth chamber installed in a shipping container. The thesis is divided into several parts, first dealing with the research, followed by the system analysis, from which the important variables for the second part of the thesis are obtained. In the second part, the conceptual options are discussed and then the most suitable one is selected by means of a multicriteria analysis. The third part deals with the design and its calculations, followed by risk analysis, economic evaluation, and discussion.
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Research and description of a design parts for 3D printing of concrete
Pondělek, Patrik ; Szabari, Mikuláš (referee) ; Kočiš, Petr (advisor)
This work provides a comprehensive overview of the current state off knowledge in the field of construction nodes for concrete printing devices. The research focuses on potential methods of 3D concrete printing. The main construction nodes and key technological processes, from the preparation of the concrete mixture to its extrusion, are described in detail. A systemic analysis examines the interrelationships between individual construction nodes and their application in 3D printing of structural concrete elements. Based on the obtained information and the results of a multicriteria analysis, suitable construction elements and the composition of the concrete mixture for printing the machine frame are identified. The final discussion presents practical recommendations regarding the selection of a suitable 3D printing method for the given application.
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Design and control of the omnidirectional chassis
Rendek, Andrej ; Kočiš, Petr (referee) ; Szabari, Mikuláš (advisor)
The master's thesis deals with the design of a locomotion system of an omnidirectional robot designed for application in sandy environment. The introductory part of the thesis is an overview in the field of current solutions of omnidirectional chassis of mobile robots. The thesis continues with a choice of possible variants. The variant evaluated as the most suitable is then elaborated in detail. This includes an analysis of the resistances acting on the chassis under conditions and movements representing omnidirectional movement in the sand. Analysis is followed by a selection of drives and a design solution supplemented by stress analysis. The final part is focused on the chassis control algorithm.
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Design of end effector for testing the defects in plastic bottles
Karn, Pavel ; Szabari, Mikuláš (referee) ; Kočiš, Petr (advisor)
This diploma thesis deals with the design of an end effector for robot that will be able to test the presence of defects in plastic bottles during their handling. The first part of the thesis is devoted to theory and deals with the different types of defects in plastic bottles as well as the currently used technologies for defect detection. The second part is focused on the systematic analysis and design of the variants, from which the most suitable one was selected using multicriteria analysis. The following part deals with the actual design of the selected variant and the necessary engineering calculations. The last part is devoted to the estimation of costing and the creation of manufacturing drawings.
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Digital commissioning of a robotic production system for palletizing
Zajíček, Matouš ; Kočiš, Petr (referee) ; Vetiška, Jan (advisor)
This diploma thesis deals with the virtual commissioning of a robotic palletizing cell. The theoretical part of the work describes the motivations for the use of automatic palletizing and common elements of palletizing cells using an industrial robot as well as the principle, tools, and benefits of virtual commissioning. The practical part of the work describes the process of creating elements of the cell in Robotstudio software and creating PLC control logic using TwinCAT3 software
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Design of robotic wall tiler
Dostál, Patrik ; Knoflíček, Radek (referee) ; Kočiš, Petr (advisor)
The goal of this diploma thesis is the design of a new robotic wall tiler. The research part of the thesis consists of two parts. The first part encompasses basic principles of industrial robotics and of already designed robotic wall tilers. The second part describes the process of manual wall tiling. The information acquired from this research has been applied in the systemic analysis of the problem. From three proposed variants, one has been chosen for further design work. The thesis also includes a proposal of robot control and a description of robot’s work procedure. In the end, the robot, and the process of automation of wall tiling were economically analysed.
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Design and aplication of stationary industrial robots
Kykal, Roman ; Kočiš, Petr (referee) ; Knoflíček, Radek (advisor)
This thesis deals with the basic construction, separation and various uses of stationary industrial robots. In the first part is mentioned the basic definition and structure of the robot, which is widely used in the world. It also contains the basic components of the robot, which are described in more detail and possibly divided according to functionality. The second part include examples of robots that are practically used today, and this part is followed by a chapter in which we find relatively new technologies that are not completely perfect and are constantly evolving. Finally, there is an analysis of robot technology, why they exist in the world and why they make our lives easier.
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