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Stiffness estimation at the machining head and the strength analysis of the moving parts of the machining center MCV 1220.
Zbožínek, Martin ; Houfek, Martin (referee) ; Vrbka, Jan (advisor)
Main objective of the work was to estimate the possibilities and the limits of elementary stress and strain analysis of the construction. At the beginning it was necessary to simplify the problem to the 1-D bar problem. The calculation was performed for three typical loading cases, namely for the middle and the border position of the machining head. The contact forces and momentums and the displacements at the machining head have been calculated. The obtained results were then used for the stiffness evaluation of the construction at the machining head. The strength analysis of the moving parts of the machinig center has been done, too. Modern software products (Autodesk Inventor, ProENGINEER, ANSYS Workbench, Maple, Mathcad, etc.) were used for the calculation. The results were compared with The Finite Element Method results.
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Progress in technology of mold milling with coated profile tools
Doležel, Ondřej ; Bumbálek, Bohumil (referee) ; Píška, Miroslav (advisor)
This diploma thesis is involved in possible development of different types of milling molds coated with modern plows. The first part is devoted to an analysis of contemporary trends in forms production technology. The analysis includes the different types of machines and tools for making various kinds of molds and dies. Another part deals with design of dies for sheet metal shears. The thesis continues by design of the production procedure after heat treatment and finishing die by miling. For milling of die are designed miling tools, the NC program and the possible development of manufacturing the die using a new machining center and the possibility of production optimization. The penultimate point of the thesis is technical and economical evaluation of the direction of development and comparison of positives and negatoves of each method. At the final evaluation is all summed up.
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Production line project
Jašíček, Radek ; Učeň, Oldřich (referee) ; Novotný, Lubomír (advisor)
This thesis describes the methods and procedures used in designing production lines, focusing on the production line for machining of train wheels. The thesis also describes the basic types of railway wheels, their design and important design elements. It also deals with the complete manufacturing process of train wheel from material selection through the technological processes of forming, heat treatment, mechanical tests, machining and non-destructive testing and measuring. Suitable equipment for the construction of automatic lines for machining, inspection and measurement of train wheels is selected according to the specified parameters of the wheel types, manufacturing productivity and production shop dimensions, These devices include vertical machining center, single-purpose machine for grease outlet drilling, device for ultrasonic inspection, magnetic particle inspecton device, measuring station and train wheel balancing machine. Several variants of the production line including detailed specification of manipulation cycle times is created. These variants are mutually compared and evaluated to find the optimal solution.
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Design of clamping device for CNC milling machine
Kašpárek, Jan ; Dočkal, Kryštof (referee) ; Svoboda, Petr (advisor)
The bachelor thesis deals with clamping fixtures problematics for parts with difficult shapes. It aims to design an effective way of clamping of a part machined on CNC machining centre. The output is an adjustment of commercially available clamping system to suit requirements of assignment. The efficiency of the manufacturing process is determined by machining time calculations that showed that series will be finished in required time. Besides that, the thesis provides an overview in various fields, such as used materials in automotive industry, used machining centres in automotive industry and also the overview in principles of clamping.
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Analysis of modern milling technologies for shaped parts
Pavelek, Michal ; Kalivoda, Milan (referee) ; Zemčík, Oskar (advisor)
The aim of my bachelor thesis is the analysis of modern milling technologies for shaped parts. The work offers the categorization and definition of shaped parts, and a description of the characteristics of milling techniques and methods used in the production of shaped parts. The work also describes the machines and tools used in the process of milling shaped parts. The last part of the paper offers the evaluation of each analyzed method, their comparing, and points out both their advantages and disadvantages.
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Solution technology of part "solid belt pulley of hoist-elevator".
Procházka, Zdeněk ; Polzer, Aleš (referee) ; Kalivoda, Milan (advisor)
This diploma work deals with a production technology of a tractive bearer rope wheel as a part of a hoist-elevator. A design and technological analysis of the components is studied, including a functional analysis of the grooves, a selection of the material of semi-manufactured blank, a selection of the cutting materials and production machines also. New CNC programs for production of the part have been worked-out. The work includes some suggestions for testing of the part function.
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Manual and Automated Production Version Components
Mikulík, David ; Kolář, Ladislav (referee) ; Kalivoda, Milan (advisor)
This bachelor thesis closely describes and compares current production of perforated matrix for the shoes industries. It contains the hand way production uses the bench drill and the other hand machines. Also describes the use of the automated production with the machine-tool Mori Seiki. Results of this thesis are described in the techno-economic comparison.
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Production of the Cylinder into the Injection Unit
Lexa, Josef ; Fiala, Zdeněk (referee) ; Kalivoda, Milan (advisor)
This work mainly focuses on the manufacture of the cylinder of injection unit as one of the two major components to the element and the injection unit to the injector pump before and after the heat treatment relative to the two alternatives of production, concentrating on the alternative of production on machining center. There are mentioned as the subsequent and finishing operations such as well as final assembly including mounting with a functional commissioning into the pump. There is also mentioned a production of samples of cylinder of injection unit, the proposals for improving and ecology of the whore production.
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Design of operator workplace of machining center
Kříž, Jan ; Pavlík, Jan (referee) ; Novotný, Tomáš (advisor)
The presented work contains the parameters and rules relevant for the design of the inter- face between the machining center and it's operator. All of information were obtained by search in scientific literature and technical standards and subsequently were sorted according to the elements to which they relate. The work contains the actual anthropometric dimensions, description of the interface elements with references to standards which relate to them. The study also shows an example of an optimized keyboard layout for machine tools and methods applicable to design the spatial layout of the workplace. In conclusion there is evaluate the state of currently available literature and technical standards.
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