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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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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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Design of slide Grinder
Kudláček, Miroslav ; Tůma, Jiří (referee) ; Holub, Michal (advisor)
The goal of my thesis is to design a support for a CNC horizontal surface grinder, using the working area of grinding wheel circumference. The proposal is based on the client’s requirements for several variants of the propulsion drive and guide systems.
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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 Device for Regrinding of Specimens
Matečka, Martin ; Nečas, David (referee) ; Smejkal, David (advisor)
This bachelor thesis is focused on design of device for regrinding of specimens. In the first part is described grinding technology, cutting conditions for grinding of outer cylindrical surfaces and kinematic and dynamic phenomena arising in these conditions. There are also analyzed the grinding tools and their using. In the next points are described the designs of the grinder’s basic components. The last in this chapter is described the testing device on which the specimens are tested. The next chapter is focused on description of the objectives and analyzing the problems. There are described the variants of design solutions. After assessment of advantages and disadvantages of all variants is selected optimum design solution which is detailed described in the last section.
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