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Statistical analysis in quality management
Chlebounová, Klára ; Knobloch, Josef (referee) ; Zahálka, Jiří (advisor)
The goal of this thesis is to create a literary research on the methods of statistical data processing in the field of quality management and to make their overview along with the possibilities of using them. A practical example shows how to determine manufacturing process stability and qualification determining, using the Shewhart’s control chart and capability indexes. This methodics should serve as a guideline for manufacturing process evaluation. As a brief summary of generally used statistical data processing methods, this thesis should serve all, who are engaged in quality management.
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Building and control of 5-axis milling machines
Anderle, Milan ; Knobloch, Josef (referee) ; Holub, Michal (advisor)
This bachelor’s thesis studies the building and control of the five-axis CNC machining centres. Modern methods of geometric accuracy measurements are described with possibilites of compensating for geomeric and volumetric errors. Measuring devices described in this thesis are laser interferometer XL-80 and ballbar QC20-W for measuring geometric accuracy of MCV 754 Quick machine. The aim of the thesis is to describe current trends in construction, design and controlling of five-axis milling machines.
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A software interface for a laser tracker user application
Kozáček, Peter ; Kovář, Jiří (referee) ; Knobloch, Josef (advisor)
For assembly of product machine is necessary to evaluate a geometric accuracy of individual functional parts of the machine. This process is very demanding and time consuming. One of the reasons of mentioned problems is the lack of software (adaptation) for measuring of the accuracy of geometrical precision. This theses (diploma work) focuses at facilitating the development and creation of own application based on customer requirements and for measuring geometric accuracy with the Laser Tracker AT901 from Leica company. The aim is to create a basic application suitable for measurement of geometric accuracy, which would speed up this process, would be user-friendly, simple and open for further expansion.
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Technologies of fourth industrial revolution in transformers design and production
Horák, Michal ; Holub, Michal (referee) ; Knobloch, Josef (advisor)
In response to the current customer demand customization trend, businesses are trying to tailor their processes to the growing variability that results from this trend. This paper explores the Industry 4.0 principles to achieve these goals. In the first part of the thesis, the basic principles of Industry 4.0 are described on the basis of the study of literature and the possibilities that these principles bring to process control and management. There is also a description of the issue of process and enterprise transformation based on Industry 4.0 principles, based on studies made by consulting companies. At the beginning of the application part of the thesis is analyzed the level of digitization of the enterprise, which intend to transform according to Industry 4.0 gardually. Also a list of proposals to increase the level of digitization in different area sis provided. Subsequently, the application part analyzes the process of setting up the workplaces of the business, which is the process most affected by the growth of variability. Based on the analysis of the process and the study of the available technical solutions, process modifications in the sense of Industry 4.0 were proposed, which could led to increase its quality, shorten the duration and thereby save the company's financial savings through the digitization of the process.
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Optimizing Test Evaluation of the steering column
Janda, Radek ; Knobloch, Josef (referee) ; Pernikář, Jiří (advisor)
This diploma thesis focuses on the study of the procedure of evaluation of the crash tests made on car steering columns and the subseuent optimalisation of this procedure by creating an evaluation sequence. The theoretical part contains the description of the testing environment and the description of the procedure of the crash test in use. Further in this section there is a description of several computer programmes which are used in the testing and evaluation procedure. The practical part starts with a description of the developement and the creation of the evalution programme that is able to evaluate the tests without the need for the operator to evaluate them himself. The results gained from the programme are veried in the following chapter. The conclusion is focused on comparing the old evaluation method with the new one that uses the evaluation sequences.
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Electromechanical drive systems in machine tools
Knobloch, Josef ; Synek, Miloš (referee) ; Blecha, Petr (advisor)
This bachelor thesis deals with a description of electromechanical drive system components. The electromechanical system construct is defined in the introduction part. Motors, transmissions, shaft coupling types in use as well as the ball screw types in use are individually described in the next part of the thesis. Manufacturer representatives on Czech market are stated for each of the parts. An example of electromechanical drive system calculation is included in the last part of the thesis.
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Design of a drived convertible axis for a reflector Laser Tracker
Novák, Tomáš ; Šubrt, Kamil (referee) ; Knobloch, Josef (advisor)
The subject of this bachelor work is a structural design drawing of a drived convertible axis for a reflector belonging to a measuring machine called Laser Tracer. The convertible axis is used to establish the reflector into two positions during the measurements of the geometric accuracy of vertical lathes. The work includes research in the area of possible structural solutions to the given issue, structural design drawing of a drived convertible axis, calculation of the needed torgque for an electric motor and its control suggestion. Complete drawing documentation is a part of this work, as well as a 3D model of the convertible axis.
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