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Deployment of advanced compensation to the machine MCV 754 QUICK
Andrýsek, Jakub ; Vetiška, Jan (referee) ; Holub, Michal (advisor)
This work is focused on the software compensation of the geometric and volumetric errors. In the thesis there are descripted the measuring instruments suitable for measuring geometric and volumetric errors of the machine tool. In addition, there are described control systems and selected software compensations currently used in the machine tools. In the experimental part of the thesis there is briefly described the machining machine where the experiment was performed. Detailed procedures for using the used measuring instruments are also described. The aim of this thesis is to determine the influence of the size of the compensated volume on the geometric and volumetric precision of the machine tool.
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Data processing from measurement on machine tools
Pokorný, Zdeněk ; Vetiška, Jan (referee) ; Holub, Michal (advisor)
The Master’s thesis deals with the precision of machine tools, especially with the three-axis vertical milling machine. It is structurally divided into a theoretical and practical part. While the theoretical part focuses on problems of geometric errors and measuring devices, the practical one is devoted to the machine tool being tested. In this case, the data processing and the proposed statistical analysis are essential, and at the end of the thesis another possible way of developing the data processing is outlined.
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Increasing resistance to self-excited oscillations in CNC machine tools for machining non-rotating workpieces
Prchalová, Michaela ; Pavlík, Jan (referee) ; Marek, Jiří (advisor)
The Master’s Thesis is focused on increasing resistance to self-excited oscillations in CNC machine tools for machining non-rotating workpieces. The main goal of the thesis is to perform a system analysis of the solved problematics and justification of the chosen way of solving the assigned task. Another goal of this thesis is to perform an analysis of the current state of science and technology in the specified problematics. Based on the analysis of the current state, a proposal for the methodology of prediction of self-excited oscillations for a specified type of machine was made, including recommendations for future users on how to proceed. The whole thesis is based on a real problem occurring during machining of a structurally difficult workpiece.
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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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Assessment of geometric accuracy of machining center using digital inclinometers
Únar, Jan ; Marek, Tomáš (referee) ; Holub, Michal (advisor)
This diploma thesis deals with assessment of geometric accuracy of machining center MCV 754 QUICK. BlueSYSTEM digital inclinometers from WYLER AG, XL-80 laser interferometer from RENISHAW, Ballbar QC20-W from RENISHAW and LaserTRACER self-guiding laser interferometer from ETALON AG were used to measure accuracy. Error of the X straightness in the direction of the Z axis was assessed. The first part of the paper describes the geometric accuracy of the machine, currently available instruments for measuring geometric accuracy and an explanation of straightness. The second part consists of the design of measurements, experiment, evaluation and comparison of results and recommendations for teaching.
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Increasing resistance to self-excited oscillations in CNC machine tools for machining non-rotating workpieces
Prchalová, Michaela ; Pavlík, Jan (referee) ; Marek, Jiří (advisor)
The Master’s Thesis is focused on increasing resistance to self-excited oscillations in CNC machine tools for machining non-rotating workpieces. The main goal of the thesis is to perform a system analysis of the solved problematics and justification of the chosen way of solving the assigned task. Another goal of this thesis is to perform an analysis of the current state of science and technology in the specified problematics. Based on the analysis of the current state, a proposal for the methodology of prediction of self-excited oscillations for a specified type of machine was made, including recommendations for future users on how to proceed. The whole thesis is based on a real problem occurring during machining of a structurally difficult workpiece.
|
|
|
Assessment of geometric accuracy of machining center using digital inclinometers
Únar, Jan ; Marek, Tomáš (referee) ; Holub, Michal (advisor)
This diploma thesis deals with assessment of geometric accuracy of machining center MCV 754 QUICK. BlueSYSTEM digital inclinometers from WYLER AG, XL-80 laser interferometer from RENISHAW, Ballbar QC20-W from RENISHAW and LaserTRACER self-guiding laser interferometer from ETALON AG were used to measure accuracy. Error of the X straightness in the direction of the Z axis was assessed. The first part of the paper describes the geometric accuracy of the machine, currently available instruments for measuring geometric accuracy and an explanation of straightness. The second part consists of the design of measurements, experiment, evaluation and comparison of results and recommendations for teaching.
|
|
|
Data processing from measurement on machine tools
Pokorný, Zdeněk ; Vetiška, Jan (referee) ; Holub, Michal (advisor)
The Master’s thesis deals with the precision of machine tools, especially with the three-axis vertical milling machine. It is structurally divided into a theoretical and practical part. While the theoretical part focuses on problems of geometric errors and measuring devices, the practical one is devoted to the machine tool being tested. In this case, the data processing and the proposed statistical analysis are essential, and at the end of the thesis another possible way of developing the data processing is outlined.
|
|
|
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.
|
|
|
Deployment of advanced compensation to the machine MCV 754 QUICK
Andrýsek, Jakub ; Vetiška, Jan (referee) ; Holub, Michal (advisor)
This work is focused on the software compensation of the geometric and volumetric errors. In the thesis there are descripted the measuring instruments suitable for measuring geometric and volumetric errors of the machine tool. In addition, there are described control systems and selected software compensations currently used in the machine tools. In the experimental part of the thesis there is briefly described the machining machine where the experiment was performed. Detailed procedures for using the used measuring instruments are also described. The aim of this thesis is to determine the influence of the size of the compensated volume on the geometric and volumetric precision of the machine tool.
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