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Design of single purpose assembly device for automotive industry
Denk, Marek ; Tůma, Zdeněk (referee) ; Tůma, Jiří (advisor)
The subject of this master’s thesis is a design of a single-purpose assembly machine for automotive industry. The assembled component is a part of a headlight of a passenger car consisting of a heatsink, a PCB and a reflector which are mutually connected by screws. The result of the thesis is detailed 3D model of the single-purpose machine made in Creo Parametric software and drawing documentation of the designed machine.
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Design of elongated right angle milling head for horizontal boring machine
Svoboda, Ondřej ; Tůma, Jiří (referee) ; Holub, Michal (advisor)
This thesis deals with design of right-angled elongated milling head for horizontal boring machine of FERMAT production. The thesis includes a detailed research of milling heads, a description of the head´s basic components and certain commercially available head´s comparison. Design part is describe components description and the design. Calculations are focused on determinating of forces generated during machining, setting of loading spectrum and the power load calculating individual gears during machining. In the next part is calculation of the reactions in the spindle bearings included, the equivalent load and durability of spindle bearings, spindle deformation and spindle bearings optimum distance. The thesis also includes spindle strength calculation, horizontal and vertical shafts analysis, gears design with helical teeth and gear strength. The thesis describes the design of extended milling head and particular design nodes which is supplemented by the 3D model. In this thesis is also included a drawing of assembly and components.
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Design of CNC lathe milling head
Mrkos, Jan ; Blecha, Radim (referee) ; Tůma, Jiří (advisor)
This bachelor thesis is mainly focused on a design of the milling head for the CNC lathe. In the introductory part there is a search in the area of tooling systems with a focus on various versions of turrets. The following is an analysis of the given parameters and the choice of a suitable solution, which is then in the next part of the thesis computed and designed.
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Design of a portable machine for machining large diameter pipes
Boháč, Josef ; Pavlík, Jan (referee) ; Tůma, Jiří (advisor)
This diploma thesis deals with the design of a portable machine for machining large diameter pipes. This thesis is divided into research, calculation, design, and construction parts. The introductory part is devoted to research in the field of joining large diameter pipes, with a focus on flanged and welded joints. Based on the findings from the research part, several construction solutions were considered. In the next part, the most suitable design solution was selected using a multicriteria analysis technique and subsequently elaborated on in detail. The following chapter deals with the calculation of maximal cutting forces and the selection of motor. An air motor was chosen as the most suitable option for the proposed machine. This part is followed by the computational part, which includes strength calculations for the critical parts of the machine. The final part of the thesis is devoted to the construction itself and the description of the individual construction nodes of the machine. The thesis also includes a 3D model, drawings of selected parts, and an assembly drawing.
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Construction design of woodworking machinery for preparing sawn timber
Závodný, Tomáš ; Tůma, Jiří (referee) ; Šubrt, Kamil (advisor)
This thesis deals primary with design of a woodworking machine focused on woodworking technology by cutting – rip saw. The introduction to the work is get to acquainted with the material to be processed – wood, and also the search of associated machines with the same technology of workpiece processing. Next part is focused on the safety of machining on woodworking machines and the individual safety features that the machines must contain are also analyzed. From this survey, a saw model with all the necessary features is created. The conclusion of the thesis is devoted to the risk analysis of the proposed machinery and their reduction.
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Design of automatic clamping device for CNC milling machine
Jirásek, Jiří ; Holub, Michal (referee) ; Tůma, Jiří (advisor)
This work is focused on the design and construction of a device for automatic replacement of workpieces for CNC milling machines. The thesis contains research in the field of automatic replacement of workpieces. The design itself can be divided into two parts. The first part is the selection of a universal clamping platform and the design of a technological pallet. The second part is the design and construction of the clamping device. First, different design variants are proposed.. These variants are then evaluated by multi-criteria analysis, based on which the most suitable variant is chosen. This is followed by the selection of suitable components for the assembly of the universal clamping platform and the construction of the technological pallet. The main part of the work is the structural design of the pneumatic wedge vice, including the necessary calculations and design of individual components. The output is technical drawings of chosen components and a technical drawing and CAD model of the assembly.
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Design of NC vise with mechanical force increase
Tejkl, Jan ; Tůma, Zdeněk (referee) ; Tůma, Jiří (advisor)
This thesis deals with NC vise with mechanical force increase. It aims to design NC vise. It provides an overview of clamping of workpieces. Furthermore, the thesis contains necessary calculations to design of NC vise. It finds critical poins of construction, choice of materials for critical components and designs with CAD software.
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Design of small hydraulic press with "C" frame
Gregor, Radek ; Tůma, Jiří (referee) ; Pavlík, Jan (advisor)
The main goal of this bachelor thesis is construction of small hydraulic press with force of 200 kN. With that comes topics like calculations of hydraulic circuit and it‘s compilation and calculation of the frame with it‘s construction. With the help of those two main topics we will be able to assemble whole hydraulic press machine. After completion of calculations and simulations, arises technical documentation of the machine.
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