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Design of automatic tool change for robotic machining
Dvořák, Vít ; Vetiška, Jan (referee) ; Bradáč, František (advisor)
This master's thesis deals with the design of a station for automatic tool change for robotic machining at the UVSSR CELL robotic workplace. This workplace is located in the laboratories of the Institute of Production Machines, Systems and Robotics FSI BUT. In the introductory theoretical part, robotic machining technology is briefly described, which is followed by research in the area of systems for automatic tool change. Next, individual parts of the machining cell are described. This is followed by a system analysis, in which the solved problem is analysed in detail. In the next chapter, 3 designs of the automatic exchange station are created, and the most suitable design is selected using multi-criteria analysis. The chosen design is then processed in detail in terms of construction, including the choice of tires and sensors. After that, the concept of the automatic replacement peripheral is designed and processed. which in this case is the cleaning station. After processing the structure, it is proposed to connect the electronics of both stations, including modifications in the main switchboard of the machining cell. Detailed drawing documentation of both stations and electronic wiring diagrams are part of the appendix. In the next chapter, functional blocks are designed for controlling the cycle of automatic tool change by the robot and manual tool change in the station. The proposal also includes a description of the management of selected devices. The following is a design of the HMI for handling error conditions and managing the exchange cycle. Finally, a safety assessment of manual tool change in the station is processed.
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Design of end effector for automatic threading
Jiříček, Lukáš ; Kočiš, Petr (referee) ; Szabari, Mikuláš (advisor)
This bachelor’s thesis is focused on the design of the end effector intended for threading. The end effector should allow for position compensation and automatic tool change. It should be designed for cutting internal threads from size M5 to size M10 using taps. The weight of the end effector structure should not exceed 10 kg. At the beginning of the thesis, research was conducted in the field of end effectors. Furthermore, an analysis of the problem of threading was carried out. In the next part of the thesis, two variants of the end-effector solution were designed, from which the more advantageous solution was selected based on a multi-criteria analysis. A design and calculations were also made for this solution. An assembly drawing and production drawings of selected components were made to represent the design of the effector. At the end of the thesis, an economic evaluation of the end effector was made.
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Design of tool turret for CNC lathe
Navrátil, Lukáš ; Pavlík, Jan (referee) ; Tůma, Jiří (advisor)
This thesis deals with mechanical design of tool turret for CNC lathe. The first part of the thesis is dedicated to research of automatic tool exchange and current trends in design of tool turrets with drive of rotary tools. The second part is focused to design of tool turret, which is based on the findings of the research part of the thesis. The design includes calculations of machining loads, spindle deformation, bearings, gears and spindle startup. Furthermore, 3D models and selected drawings are included.
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Design of large capacity ATC
Šrámek, Ondřej ; Bilík, Martin (referee) ; Pavlík, Jan (advisor)
The aim of this thesis is to design one part of a system for the automatic exchange of tools on a heavy machining center for non-rotating parts. This thesis was commissioned in cooperation with TRIMILL, a.s.. The first part is devoted to a thorough analysis of the issues addressed and contains a general introduction to AVN systems and their basic divisions. The second part deals with the various options of design and is followed by an engineering design of the chosen solution including the dimensioning of the main parts. The work includes a 3D model and drawings.
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Design of tool magazine for CNC mill
Sýkora, Michal ; Tůma, Zdeněk (referee) ; Tůma, Jiří (advisor)
This bachelor thesis deals with automatic tools change on machine-tools. In the thesis, there is a research from the issue of ATC on machine-tools, focused on individual types of tool magazines. Then the necessary construction calculations are made there. Based on the calculations, the disk-type magazine is designed in 3D software. Assembly drawings and production drawings of three components are also part of the bachelor thesis.
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Design of ATC System
Kolář, David ; Tůma, Jiří (referee) ; Blecha, Petr (advisor)
The first part of the thesis is focused on summarisation of commonly used conceptions of automatic tool change systems, especially focused on milling machines. Special attention is given to the issue of single tool change systems using storage tool magazines. Considering the following construction theme of the thesis, most commonly used spindle clamping units were described. With use of the gathered information was then created the construction draft of the ATC system suitable to be used with a numerically controled milling machine. Solution of the issue consists of the static structural analysis of the clamping unit using the finite element method and design of the belleville springs set. Final output of the draft comprises of drawing documentation of the main parts of the system.
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