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Design of coffee grinder
Krčma, Martin ; Buganská, Tamara (referee) ; Ondra, Martin (advisor)
Subject of this bachelor thesis is desing of a coffee grinder. This product is studied from historical, technical and designer points of view. Then, based on the completed analysis, a new product is designed, one that meets ergonomical, technical, aestetic and social requirements.
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Repair of a holder for grinder cover
Židlický, Ondřej ; Prokop, Jaroslav (referee) ; Kalivoda, Milan (advisor)
This Bachelor thesis is focused on the repair of a holder for a grinder cover and the manufacture of the missing pieces of a pedestal grinder. The structurally-functional analysis of the machine and the manufactured pieces is described in the first chapter of this thesis. The manufacturing process itself is described in the following chapters. Raw materials and production technology are designed for the manufactured components. For each component, there are described the technological processes and instructions. The junction of the new parts of the machine with the original ones is conducted through welding. After this operation, the whole grinder cover is sandblasted and its surface is sprayed with a protective layer of lacquer. Next, the grinder cover is mounted to the pedestal of the grinder. The whole manufacture design is considered from the technological and economical point of view in the penultimate chapter and the drafts for improvements are described in the last chapter. All of the components are manufactured in accordance with the design and the grinder is once again in good technical condition.
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Grinding of Bearing Rings
Růžička, Daniel ; Prokop, Jaroslav (referee) ; Kalivoda, Milan (advisor)
The main objective of this work is to evaluate the surface quality, machined on three different grinders (all three from different age), and to compare those grinders. Comparison is done by the achieved degree of precision of measured geometric tolerances in inner orbits of the outer bearing rings. As the best grinder is expressly marked the newest (type CNC) however, the second in a row (the second youngest) is very close to its quality and finally it is noted that the purchase and operation of this grinder is more convenient.
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Design of belt grinder
Bartuněk, Jiří ; Tůma, Zdeněk (referee) ; Pavlík, Jan (advisor)
The aim of this bachelor’s thesis is to design a general-purpose stationary belt sander. Current knowledge and a working principle of a belt sander is delineated in the introduction. Furthermore, all possible methods are shown, one of which is selected as the most convenient. That design is further compiled as a 3D model with a calculation report attached.
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A proposal of technology for the two-disc home grinder
Martinka, Jiří ; Zemčík, Oskar (referee) ; Sliwková, Petra (advisor)
This bachelor thesis deals with the design of the production technology of the selected part. The chosen part comes from a two-disc home production made at the turn of the 1980s and 90s. It is a body that consists of five produced components. The work is elaborated with the body of the grinder and individual parts. A brief distribution of grinding machines and a theoretical analysis of used machining technologies. Above all, they are turning technologies, as well as drilling technologies, milling and folding. Materials and semi-finished products from which they will be produced were chosen for the individual part of the grinder body. Selected machinery and tool equipment, processed technological procedures of production for individual components of grinding agents and drawing documentation.
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Design of belt grinder
Bartuněk, Jiří ; Tůma, Zdeněk (referee) ; Pavlík, Jan (advisor)
The aim of this bachelor’s thesis is to design a general-purpose stationary belt sander. Current knowledge and a working principle of a belt sander is delineated in the introduction. Furthermore, all possible methods are shown, one of which is selected as the most convenient. That design is further compiled as a 3D model with a calculation report attached.
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