|
| |
|
| |
|
| |
|
|
Safety assessment of NHX5500 DMG MORI machining center
Novotný, Petr ; Blecha, Radim (referee) ; Blecha, Petr (advisor)
The diploma thesis deals with legislative purposes for the operation of machinery in the Czech Republic and the European Union. It deals with the analysis of technical standards of machinery, specific machining centers. The analysis of the risky machining center NHX 5500 DMG Mori is based on this. The result of the work is the minimization of ongoing risks and meeting the legal requirements of the state of the operated machining center.
|
|
|
Rotary drive system for living tool
Matyáš, Ondřej ; Marek, Jiří (referee) ; Marek, Tomáš (advisor)
The work shows us the basic division of the rotary náhonové system of CNC machines. The first part of the work of this thesis refers to the fundamental distribution of the Rotational náhonové system, i.e. tool and workpiece. Another part is the distribution according to the method of drive, the rotary actuator and directly driven.
|
|
| |
|
|
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.
|
|
|
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.
|
|
|
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.
|
|
|
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.
|
guest ::
