|
|
Digital twin of machine tool
Klíč, Daniel ; Štěpánek, Vojtěch (referee) ; Tůma, Jiří (advisor)
Digital twin is virtual model of real object or process, which its functions and operations can be simulated.This thesis focuses on the creation of a digital twin of axis movements on a three-axis CNC milling machine MCV Quick 754, which is located in the laboratories of the Institute of Production Machines, Systems and Robotics at Brno University of Technology. The creation of the digital twin was carried out in Autodesk Inventor, in which the models were processed, in Adams View, in which the kinematic chain and the forces acting on the mechanical part of the machine were created. The whole assembly was exported for use in Matlab Simulink. In Matlab Simulink the drives and their control were created and the required positions and speeds were specified. The runs of the measured quantities on the real machine were compared with the simulation and the resulting values were in relative agreement.
|
|
|
Virtual commissioning of the one purpose measuring machine
Mour, Jiří ; Bražina, Jakub (referee) ; Štěpánek, Vojtěch (advisor)
This diploma thesis deals with the virtual commissioning of a single-purpose measuring station for measuring square-shaped plate components by a comparative method of measurement. The theoretical part deals with current methods of automatic measurement in industry and an overview of sensors for measuring length dimensions. The practical part describes the modification of the 3D model of the measuring station in the software NX Mechatronics Concept Designer and the structure of the PLC program in the software TIA Portal, including the mathematical procedure for processing measured data from the sensors. The visualization of the HMI control panel with screens for various modes of the measuring station was also processed.
|
|
|
Virtual commissioning of the machining workplace
Valach, Tomáš ; Štěpánek, Vojtěch (referee) ; Bražina, Jakub (advisor)
This diploma thesis deals with virtual commissioning of production system for robotic milling, which is located in the laboratories of the Institute of Production Machines, Systems and Robotics at the BUT. In the theoretical part of this thesis is described the issue of virtual commissioning, uses of robot systems in milling operations and software usable for virtual commissioning. Practical part of the thesis contains description to creating CAM operations, the creation of 3D model of workplace and PLC program and its HMI. Programs Fusion 360, Robot studio 2021, TwinCAT and OPC UA were used for the actual implementation.
|
|
|
Using machine vision for robot guidance
Gábik, Jaroslav ; Štěpánek, Vojtěch (referee) ; Vetiška, Jan (advisor)
With the development of machine vision technologies, new applications that can increase production, versatility or simplicity of production systems are widely spread. This thesis deals with usage of machine vision for robot guidance. The task consists of creating a technique and its practical realization, where the proposed assumptions are verified. The main objective is to determine 3D position and orientation of a sheet metal part or subassembly of the body-in-white, which is lying within the reach of an industrial robot with respect to its base coordinate system. The proposed method is suitable for several types and dimensions of components, which meet certain requirements. Targeting the component is carried out by scanning significant points on the component with the help of the 3D scanner attached to the robot flange. Afterwards, gained data are processed in a designed programme. The theoretical part is focused on research in the field of machine vision, accuracy of industrial robots, compensation of their errors and manipulation and assembly of the sheet metal parts in automotive. Finally, an evaluation and recommendations for practice are provided.
|
|
|
Mathematical model of load workplace for rotating electrical machines
Rybnikář, Petr ; Štěpánek, Vojtěch (referee) ; Pruša, Radomír (advisor)
This work deals with the creation of a mathematical model of load workplace for rotating electrical machines. The first part provides a general description of servomotors and their mathematical equations. The second part describes the commissioning and connection of the PLC to the inverter and the subsequent creation of PLC programs. The last part describes the creation of the PMSM model with its control and then verified the validity of the model and the real machine.
|
|
| |
|
|
Construction of a single-purpose machine for automatic testing of pneumatic fittings
Tejkl, Michal ; Štěpánek, Vojtěch (referee) ; Tůma, Zdeněk (advisor)
The subject of this diploma thesis is the design of a single-purpose machine for automatic testing of pneumatic fittings. Pneumatic fittings used in brake systems are subject to high technical requirements and 100% tightness control in production. In this case, manual testing is not effective and the goal is to automate the process. The theoretical part presents pneumatic mechanisms, analysis of the tested pneumatic fitting with technical parameters, the possibility of tightness testing, use of sensors, and rotary tables. In the practical part, a systematic analysis of the problem was performed, according to which the overall design proceeded. Subsequently, the design of the complete machine containing individual nodes is processed, supplemented by the necessary calculations. The conclusion of the thesis contains an evaluation of the whole project.
|
|
|
Design of direct drive tool turret for CNC lathe
Mrkos, Jan ; Štěpánek, Vojtěch (referee) ; Tůma, Jiří (advisor)
The diploma thesis deals with the design of a direct drive tool turret, which serves as a tool magazine for a CNC lathe. In the introductory part of the work, a research was performed in the field of automatic tool change with a focus on tool turrets and their main structural units. The introductory research is followed by the main part of the work, which begins with the selection of appropriate design solutions, followed by a presentation of the tool turret design created in CAD software Autodesk Inventor 2021 and in the final part of thesis the key elements of the proposed design are verified by calculations.
|
|
|
Digital commissioning of a robotic production system for 3D print
Beránek, Ondřej ; Štěpánek, Vojtěch (referee) ; Vetiška, Jan (advisor)
The master thesis describes the design and digital commissioning of a robotic production system for 3D concrete printing. The theoretical part of the thesis includes an analysis of the current state of knowledge in the field of 3D printing in industrial automation. It also includes a detailed system analysis of the problem, in which the requirements and elements of the production system are specified. In the applied part of the thesis, a 3D model of the workplace was created and a simulation of the entire production process and digital commissioning of the system were performed using the ABB RobotStudio software. The output of the of the application part of the thesis is the design is the design of the workplace with a debugged control program ready for use in real operation.
|
|
|
Design of a two-axis multi-spindle lathe carriage
Sedlář, Jiří ; Štěpánek, Vojtěch (referee) ; Hadraba, Petr (advisor)
This diploma thesis deals with the design of a two-axis multi-spindle lathe carriage. In the first part, there is made a research, and its aim is to find possible variants of design solutions. After the best rated variant was selected, the thesis further continues with the necessary technical calculations of the main design nodes such as a synchronous servomotor, ball screw, linear guide and bearing. The design itself was carried out with regard to calculations and the resulting model was examined in terms of dynamic stability. The subject of examination was to find the natural frequencies of the assembly and to determine the amplitudes of the oscillations which arise from the harmonic excitation force. Finally, Lobe diagrams for grooving and longitudinal turning operations were drawn.
|
guest ::
