National Repository of Grey Literature 21 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Headstock and main spindle of horizontal turning center
Suda, Martin ; Novotný, Lubomír (referee) ; Dokoupil, Vladimír (advisor)
The thesis deals with headstock and spindle of the universal turning center. In the introduction part is a destription of the headstock morfology. It describe how the spindle and headstock can be solved in terms of its bearing, installation, used clamping interface, lubrrication, cooling and sealing. The second part is devoted to the universals turning machines which are available on the market. In the final part is the practical solution of the headstock and spindle on which can be performed for milling and drilling operation instead of turning.
Hydraulic press 20 tons
Hájek, Vojtěch ; Novotný, Lubomír (referee) ; Omes, Jiří (advisor)
This bachelor thesis is focused on design of the hydraulic press for pressing half–circeled depression on strut of hoods for automotive industry. The content of this thesis is calculation of hydraulic circuit, elastic and deformation calculation of frame, creating drawing documents and description of the manufacturing and following establishment according to plan of the manufacturing hall.
The drive of the feed coordinate portal machining center through pinion and rack
Malásek, Petr ; Novotný, Lubomír (referee) ; Marek, Jiří (advisor)
This thesis is dealing with determining of technical and economical limits of axis X of portal milling machine driven by gear rack and pinion. And designing drive of axis like this. In chapter overview of the current state of knowledge are researched options of drive systems of linear axis, primarily of using ball screw and couple of pinion and gear rack. Basic parameters of axis X portal milling machines, options of measuring, guiding of axis and electric motors. Then the limit suitability of using pinion and gear rack is determined. In next chapters is designed few variations of arrangements of drives and selected the best one. This arrangement is then designed.
Exhausting devices used for multi purpose machining head
Bajza, Stanislav ; Učeň, Oldřich (referee) ; Novotný, Lubomír (advisor)
This thesis deals with a design of exhaust mechanism used for a machine tool made by TOSHULIN a.s. The device itself is designed to extract dangerous dust that is produced while machining composite materials out of machine workspace. The main task lies in the design of kinematic scheme for tubing from filtration unit to the front of the ram without compromising the abilities and workspace of the machine. Following that it deals with the design of the end-nozzle used to seal the workspace around the workpiece.
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.
Technical improvements of the machine tool NAKAMURA – TOME
Novák, Tomáš ; Učeň, Oldřich (referee) ; Novotný, Lubomír (advisor)
The subject of this engineer´s thesis is a design proposal for technical upgrade of chosen CNC turning center design groups. The choice of design groups is based on user´s and author´s practical knowledge gained from machine´s workings. For each of these groups, there is a function description, actual state of design solution and problematic behaviour description. The follow up consists of given problems solving with more possible variations taken into consideration, including economic evaluation of chosen solution.
Protective Guards of Machine Tool
Zlámal, Josef ; Učeň, Oldřich (referee) ; Novotný, Lubomír (advisor)
The master thesis deals with the problematics of machine guard. The first part of the thesis is focused on the analysis of machine guards, legislative safety requirements and noise issues. The second part of the thesis describes design and construction of the machine guard in case of the vertical turning centre, TOSHULIN - POWERTURN 2000, including the calculation of noise reduction.
Ball screws for the feed system with long stroke
Nováček, Milan ; Novotný, Lubomír (referee) ; Marek, Jiří (advisor)
Master´s thesis is directed for long ball screws of nut. It is here wrote their principle, essential type, parameters and current status of single used components. For this thesis is created at program Microsoft Excel methodical calculating of required parameters ball screws of nut. Another they are investigated status of affect length shaft ball screws, as mode storage, type actuator and possible damping. In last part is solved the design of supports long shaft ball screws and is here proposed conceptual process used supports.
Computational modeling of machine tool frame
Hermanský, Dominik ; TOSHULIN,, Martin Minarčík; (referee) ; Novotný, Lubomír (advisor)
The subject of my master’s thesis is creating a computational model of a vertical turning centre frame. The frame is influenced by the heat generated in a motion system. The computational model was created to evaluate a temperature distribution in machine frame structure and thermal deformations caused by temperature gradients.
Vertical turning lathe without servicing
Stískal, Petr ; Novotný, Lubomír (referee) ; Marek, Jiří (advisor)
This master’s thesis is aimed at the lubrication of machina tools. There are described the basic type sof lubrication systems, design of maintenance-free lubricated vertical lathe and technical-economic evaluation. The last section is devoted to the design proces.

National Repository of Grey Literature : 21 records found   1 - 10nextend  jump to record:
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