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Workpiece geometrical accuracy measurement possibilities
Tvardek, Michal ; Musil, Martin (referee) ; Blecha, Petr (advisor)
The aim of this bachelor thesis is to do a research in the field of measurement of geometrical accuracy of workpiece. In the introduction I deal with the description and graphic interpretation of geometrical tolerances and parameters of the surface texture, including their illustration in the drawing documentation. Then I briefly summarized the major measuring methods of the chosen geometrical features and gear wheels. I also described the current equipment for measuring geometrical accuracy and surface texture for both inprocess and postprocess usage; meanwhile I tried to accentuate their main features and advantages.
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Machining of rotating Body-part on CNC lathe
Dlouhý, Vít ; Dvořák, Jaromír (referee) ; Kalivoda, Milan (advisor)
This master's thesis is focused on the technology fundamentals of machining for the use of the CNC lathe which was used for machining the required parts are made of stainless steel. In the introduction are mentioned the historical milestones related to machine tools. In the following chapter is analyzed machining process and related fact. A follow-up chapter contains the parameters common to a modern machine tool CNC machines. Followed by the practical part with the characteristics of the machined components. The next chapter includes a selection of CNC lathe for production. Continued by selecting the appropriate cutting tool and adjusting the machine for the given component. They were applied a total of three variants of production with the subsequent evaluation. In conclusion, it became established fact, for example, the advantages of the shape tools or the use of more spindles during the machining.
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Machine grinding
Beseda, Vojtěch ; Mouralová, Kateřina (referee) ; Kalivoda, Milan (advisor)
At the beginning of this dissertation an overview of grinding technologies is presented. The following chapter presents a selection of grinding machines from databases and manufacturers’ catalogues. At the end, a case study of grinding processes in a small manufacturing company is analysed. It focused on the action of grinding an internal cylindrical area on thin wall housing. The solution is the adaptation of component´s attachment, the adjustment of the working cycle and the dimensional control according to drawings.
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Machining of shaft for hybrid car drive
Göth, Karel ; Kalivoda, Milan (referee) ; Osička, Karel (advisor)
This bachelor thesis deals with the production of a shaft for driving a hybrid motor. The whole proces is illustrated by a production process, which has the task of executing the worker from the first task to the last. The work is also focused on the issue of hybrid vehicles, especially the nature of the hybrid engine and their types.
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Influences manufacturing technologies geometric and dimensional accuracy of workpieces
Suchomel, Kamil ; Marek, Tomáš (referee) ; Holub, Michal (advisor)
The aim of the diploma thesis is to describe influences of selected production technologies on geometrical and dimensional accuracy of workpieces. Specific technologies - turning, milling and grinding and the machines on which these technologies will be implemented - a vertical lathe, a portal milling machine and a center grinder are described in this thesis. Additionally a procedure is created for adding geometric errors to a tri-axial machine tool to describe the entire working area of the machine in terms of errors. Subsequently an analysis of each geometric error is created for each machine and their influence on the resulting workpiece is determined.
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Production technology of a part
Vlach, Jan ; Kolář, Ladislav (referee) ; Osička, Karel (advisor)
The aim of this bachelor’s thesis is to suggest a suitable technological process of producing the given piece. This piece is the bottom shaping piece of an injection molding form, which is further used in producing plastic cartridges for the electrotechnical industry. Milling and drilling methods will be used in production. The technological processes will take place on a console milling machine and a CNC milling machine, for which an NC program is made using WORK NC software. One the basis of the manufacturing of the given piece and analysis of the machining times; a technological procedure including recommendations for improvement is chose.
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Using measuring probes ( for tools and workpieces) for production machine of range of products firm TOS KUŘIM
Kohút, Josef ; Holub, Michal (referee) ; Opl, Miroslav (advisor)
The purpose of this dissertation is to familiarize the reader with basic recognition of machine measuring probes for tools and workpieces. Namely then in area of measurement on CNC machining centers. Both recognition from aspects of principle of function of sensing elements and type of transmition to control system, and recognition from constructional aspects are described here. Further it puts mind on equipment of machine probes (touches etc.) and rules for best selection of this equipment. Next part of this work describes selection of appropriate probes, for universal machines from production of firm TOS Kuřim. Last part deals with testing of designed measuring system for concrete machine from production of firm TOS Kuřim. His typical composition, evaluation of tests results and achieved accuracy is also described here.
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