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Design methodology for the selection of basic components of linear machine tool axes
Král, Stanislav ; Dosedla, Michal (referee) ; Holub, Michal (advisor)
The aim of the thesis is based on specified parameters positioning units, which include stroke (1m, 2m, 4m), load (5kg, 50kg, 500kg), you place the position accuracy (0.04 mm) and dynamic (maximum attainable speed 1.5 m / s), proposals to build a ball screw, linear motor, a toothed belt and toothed comb. For selected variants of positioning units to design a 3D model of positioning units. The proposed variations to compare and define their advantages / disadvantages, techno-economic comparison, the limit values of individual designs, etc. The work includes a search drive in positioning units, design units with toothed belt, a toothed comb, ball screw linear actuator, a calculated message of individual proposals then 3D design options for the ball screw and linear motor including drawings and assembly drawings.
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Modular linear axis
Chlapečka, Tomáš ; Bilík, Martin (referee) ; Pavlík, Jan (advisor)
This thesis contains a structural design of linear axis with a stroke up to 800mm and a maximum load of 800N. The thesis also deals with a modular assembly system of the linear axis based on the structural design. Linear axes can be fitted with rolled, whirled and grinded ball screws with thread pitch 5, 10, 16mm and rolled trapezoidal screws on pitch 4 and 8mm. The stroke of the linear axes can be selected in the range from 200 up to 800 mm, with a maximum load of 800N in all linear dimensions. The feed of linear axis is provided by shaped rolling guide way and four trucks. The modular system offers two servo motors with direct and indirect measuring four stepper engines with indirect measuring. The thesis also includes strength and functional calculations of principal components, graphs of the possible load on linear axis in different positions , durability of the ball screws, maximum speed and feed rate of the chosen screws, data sheet, 3D model, drawings and assembly drawings of the nodes.
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Energetic model of linear axis with ball screw and servodrive
Sládek, Vojtěch ; Tůma, Jiří (referee) ; Huzlík, Rostislav (advisor)
The aim of the thesis was to study the Energy Models of Linear Axes with Ball Screws and Servo Drives, to analyze the individual parts of the axis with respect to losses, the methodology of calculating the losses on the electrical part and the mechanical part of the drive and creating a complex algorithm that calculates the energy consumed for the specified motion. The thesis is divided into a theoretical and practical part, where the theoretical part is divided into the treatise on the electrical part of the axis and its losses and the part that deals with the mechanical part and its losses. The calculation is divided into the basic verification algorithm and the calculation on the given example. Each calculation is calculated for both linear acceleration and S-curve acceleration. For both types of acceleration, the result of energy and its course over time is also the waveforms of position, velocity, acceleration, angular acceleration, moments, powers, power, speed and currents over time.
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Design of small hobby CNC milling machine with fixed table
Hanzal, Jiří ; Marek, Tomáš (referee) ; Pavlík, Jan (advisor)
The topic of this work is the design of a small model CNC milling machine with a fixed table for machining wood, plastic, or light alloys (Al, Zn, etc.). It also includes a calculation report and drawing documentation of selected nodes. The beginning of this work consists of an introduction to the issue of milling machines, their distribution and subsequent market analysis. Subsequently, the input parameters are designed on the basis of market analysis and in the last part there is a calculation report, the design of the milling machine itself and a short economic evaluation.
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Design of camera crane
Navrátil, Pavel ; Hutař, Pavel (referee) ; Koutný, Daniel (advisor)
This Master’s thesis deals with several variants construction design of camera crane. Two optimal variants are chosen with regard to practical usage. The thesis includes complete design of these variants with 3D models and strenght analyses. This analyses are processed by final element method. The first variant made based on technical documentation and it has worked for company Filmochod s.r.o..
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Design of a milling table for machining wooden boards
Uhlíř, Radim ; Mazal, Pavel (referee) ; Čípek, Pavel (advisor)
The bachelor's thesis deals with the design and implementation of a milling table for machining wooden boards. In the research part, an analysis of the solutions available on the market was performed together with an analysis of workpiece fixtures, hand milling fixtures and linear guides. Based on the research, two conceptual solutions and several variants of structural nodes were proposed. The most suitable constructional solution was selected from the conceptual solutions, calculations of critical nodes were performed and drawing documentation was made. Subsequently, a prototype of the table was made and its functionality was tested. The table can clamp and machine a wooden board with maximum dimensions of 1000 x 800 x 100 mm.
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Hobby milling machine design
Valášek, Ondřej ; Zemčík, Oskar (referee) ; Dvořák, Jaromír (advisor)
At the introductory part, this thesis deals with description of individual parts of construction and control of CNC machine. Individual parts are described by vievpoint of principle of function, attributes and possibility of implementation on hobby machine. Furthermore is performed brief analysis of commercially manufactured CNC milling machines, which can be purchased on domestic and foreing markets for a purpose of milling wood and eventally aluminuum alloys. Main purpose of thesis is custom desing of CNC milling machine for non-commercial use. Three draft proposals are created first. Then one of them is developen into complete proposal. This design is then subjected to numerical simulation to pre-determine the machine's stiffness and ability to milling aluminium. The result of this simulation confirms the possible use of the machine for milling aluminium alloys. According to the simulation, the maximum deformation for possible machining of aluminium under predetermined conditions is 0.18 mm. In the last part of the work a price calculation was made, determining the approximate cost of the machine production at 75 000 CZK. The work includes a complete drawing documentation of the mechanical parts of the machine.
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Electronics for Sewing Machine
Karásek, Josef ; Fedra, Zbyněk (referee) ; Vychodil, Josef (advisor)
The main components of the system for embroidery sewing machine is (Veritas 8014/35-2) and pointing devices. The machine automatically entered embroidered patterns, it is necessary to construct a pointing device and its control. To drive the pointing device used two stepper motors, the control circuit to cater to the ATmega128. Communication between PC and ATmega128 provides converter FT232.
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Design of manipulator for palletization
Florián, Michal ; Pochylý, Aleš (referee) ; Kubela, Tomáš (advisor)
The matter of this master´s thesis is the construction of two variations of manipulator for palletization. The first solution is the derrick manipulator; the second one is the gantry manipulator. The aim of this master´s thesis is the comparison of both solutions from the point of view of the applicability, the cost and the demandingness of production. The productinon documentation will be elaborated for the selected solution.
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