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Rotary clamping elements of tools machine tool acessories
Komárek, Miroslav ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
The theme is addressed by rotating clamping elements with regard to their development over time. Shows the possibility of clamping rotating tools from the universal machine, to the modern machining operations. The practical part linked to the possibility of clamping assemblies in different machining oparations and their balance. Selection of clamping elements in the catalogs of companies.
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Clamping mode of tools and workpieces
Kamenická, Pavlína ; Pekárková, Eva (referee) ; Kalivoda, Milan (advisor)
This bachelor's thesis deals with a clamping of machine tools and workpieces in an engineering practice. It provides an overview of the possibilities of their clamping during machining. The individual ways of the clamping for specific machining operations are there presented sequentially and also their functional principles are described in detail. In the thesis is contained also a practical analysis acquired in a business environment. Its aim was to find out the real use of the clamping of machine tools and workpieces in practice. In the conclusion are added examples of typical clamping devices from catalogue sheets of various companies.
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Design of lathe chuck with machine-adjustable excentricity
Petrych, Jan ; Holub, Michal (referee) ; Tůma, Jiří (advisor)
This master´s thesis focuses on constructional design of chuck with settable eccentricity in two axes. The first part consists of brief analysis of the clamping of CNC machines and summary of available chucks with settable eccentricity. Next part deals with study of possible construction designs. Two construction variants will be based on those designs in the next part. Following part then describes dimensionality of the main parts of the chuck. Based on the calculations, the 3D model of chosen variant is created with the description of its functionality. Finally the conditions of operation for the chuck are described.
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An innovation of production technology of pressure reservoirs
Caha, Lukáš ; Humár, Anton (referee) ; Píška, Miroslav (advisor)
The target of Master Thesis with theme „The innovation of production technologie of pressure reservoir“, is a description of manufacturing technologie currently in use and design a new technologie. Part of new development of technologie is a selection of suitable spectrum of rails (pressure reservoir), design invention of appropriate machine loading system and clamping fixture placed into machine. Also the comparison of technologckl and economical parameters of proposed designed technologies and technologie currently in use - the final evaluation included.
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Anti-windup Schemes for Linear Dynamical Systems Control
Kozubík, Michal ; Pohl, Lukáš (referee) ; Václavek, Pavel (advisor)
The aim of this bachelor thesis is to study windup effect and methods of its compensation. Introduced methods are clamping, back-calculation, internal model control (IMC) and design based on solution of linear matrix inequalities (LMI). The Matlab tool was created for the last two methods. All mentioned methods were then tested on chosen systems by simulaton in Matlab Simulink. After that results of simulation were evaluated with respect to computational time, overshoot, settling time and ITAE criterion.
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Design of clamping device for mass production on CNC milling machine
Blahuta, Jiří ; Foltýn, Jan (referee) ; Svoboda, Petr (advisor)
This bachelor thesis deals with a design of a milling fixture and a fixture for broaching on a press. The fixtures enable progressive production on a CNC machine with a high efficiency and minimal downtime. The fixtures are designed for a serial production of a specific component in automotive industry with quantity of 250 000 units per year. The main goal and partial goals of the thesis were accomplished. The designed milling fixture uses wedge clamps and hydraulic cylinders for clamping. The broaching fixture uses springs to position the workpiece. The design of proposed fixtures was verified by production capacity calculations, which prove that the series will be produced in a required time. To further increase productivity, it was suggested based on calculations to use five milling fixtures in the milling machine. The design of the broaching fixture was verified by FEM simulation, which showed that the device is sufficiently rigid and strong. The result of the work is a design of two fixtures in the form of 3D models and drawings. The work includes, among other things, research of three-axis CNC milling machines, broaching machines, and wrought aluminium alloys.
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Design of a milling table for machining wooden boards
Uhlíř, Radim ; Mazal, Pavel (referee) ; Čípek, Pavel (advisor)
The bachelor's thesis deals with the design and implementation of a milling table for machining wooden boards. In the research part, an analysis of the solutions available on the market was performed together with an analysis of workpiece fixtures, hand milling fixtures and linear guides. Based on the research, two conceptual solutions and several variants of structural nodes were proposed. The most suitable constructional solution was selected from the conceptual solutions, calculations of critical nodes were performed and drawing documentation was made. Subsequently, a prototype of the table was made and its functionality was tested. The table can clamp and machine a wooden board with maximum dimensions of 1000 x 800 x 100 mm.
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A design of pneumatic stationary chuck
Hurtík, Daniel ; Pavlík, Jan (referee) ; Tůma, Jiří (advisor)
This Bachelor’s thesis is focused on the construction of a pneumatic stationary chuck, but it also mentions something in the field of workpiece clamping and machine vices for rotating workpieces. The first part contains a brief search in the field of clamping, which focuses mainly on the clamping of rotating parts. The next chapter focuses on possible solutions that would meet our requirements. The main components of the chuck are then calculated and designed so that subsequent construction can be performed in any CAD software, which is the content of the next chapter. Finally, some requirements for chuck operation are summarized.
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Analysis of causes of inaccurate production
Foral, Jakub ; Trčka, Tomáš (referee) ; Kalivoda, Milan (advisor)
The topic of the Master‘s thesis focuses on NOK pieces which are produced during the production of components. NOK pieces and their rework significantly increase the company‘s costs. In the individual chapters there is an analysis of the company and the definition of a critical point. The FPY indicator was used for the analysis of the company, from which the component was identified. Three improvement concepts have been created for this component. These concepts may reduce the rate of NOK products in the company. The conclusion of the Master‘s thesis presents the evaluation and implementation of the selected change.
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Part production technology
Uličný, Roman ; Polzer, Aleš (referee) ; Osička, Karel (advisor)
This work deals with the production technology of the plastic part for battery modules. First chapter contains analyzis of fundamental methods of machining, where are general informations about technologies which are used in the company with which one is work cooperated. In the second chapter is solved description of manufactured part and its technological aspects for the production. Next chapter is dedicated for introducing the company and its technological possibilities for the manufacturing. The rest part of the work is dedicated for designing production of the semi-finished product and clamping of the semi-finished product. With the selected variant is solved production technology of the part, where are indicated technological solutions of each operations and production process. In the end is realized technological-economic valorization, where is solved service of more machines and judged cost for production of designed variants.
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