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Design of Tool for Louvers Production
Hejna, Jaroslav ; Žák, Ladislav (referee) ; Řiháček, Jan (advisor)
This thesis presents a tool design for production of embossments into the bottom part of the agricultural silo made of Dx51D material. The research analysis all technologies used for embossing, that is cutting and shallow drawing. This is followed by a chapter on simulation. The tool design itself is described. Its principle is based on tools for punching machines. The upper half of the tool is composed of a weldment to be clamped into pressing machine, into which are mounted functional parts in the form of inserts. The lower tool consists of several bolted plates, punches and a holding plate, which is located on the springs. In order to achieve correct design, necessary calculations were carried out and it was all confirmed by simulation in ANSYS. The two tool halfs are guided by pins attached at the edges of the lower tool. The technical - economical evaluation compares the work of the proposed tool with other possibilities of embossing.
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Searches press brakes
Volejníček, Martin ; Bilík, Martin (referee) ; Pavlík, Jan (advisor)
The goal of my thesis was to create an integrated classification of press brakes. Introduce advanced press brakes and their basic specifications. Bending is a very common way of forming. Production bent part of a waste-free and economical. Modern hydraulic press brakes allow quick and precise production. Automated bending cells achieve high productivity.
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Construction design hydraulic press brake
Stránský, Jaroslav ; Holub, Michal (referee) ; Pavlík, Jan (advisor)
This thesis is divided into several chapters. First two chapters after introduction are written as search type. In next part I devoted to detailed design of functional mechanisms of linearly moving parts of press brake. For the construction of stop mechanism I dealt with conversion types as ball screw, pinion with rack and timing belts. There is also quite thorough calculation part in ball screw and pinion with rack issue. I have also dealt with the necessary bending force and then designed hydraulic cylinders. Elaboration of machine frame with safety features is included.
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CNC Applications in Forming Processes
Pobořil, Martin ; Jopek, Miroslav (referee) ; Řiháček, Jan (advisor)
This thesis presents the study on CNC control and its usage in forming processes. It analyses the main elements which are essential for functionality of computed numerically controlled processes. It also comprises the basics of CNC programming and related software programmes. Individual technologies of forming are covered in terms of fundamental principles. Subsequently the technologies are described in relation to the CNC control – in theory and also the specific examples of machines and software programmes are given. The thesis considers advantages and disadvantages of each technology and its suitability for use in given application.
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Design of hydraulic press brake
Machara, Matúš ; Tůma, Zdeněk (referee) ; Pavlík, Jan (advisor)
The thesis is focused in the first part on the issue of bending and various types of press brakes In the second part, a mechanism was designed in detail to control the ram press brake during bending. The individual situations that may occur at work have been developed. Based on them and on the theoretical consideration of the deformation of individual parts of the invented solution, the individual components were dimensioned. A possible solution of the basic construction of the whole press brake according to the assignment parameters was also outlined. Finally, a recommendation for the production of this solution was mentioned.
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The Production of the Components on the Press Brake Machine
Zahradníček, Lukáš ; Řiháček, Jan (referee) ; Peterková, Eva (advisor)
The project elaborated overview of the production technology of the components on the press brake machines. It is based on study of theoretical pricniples in literature and modern practical instances as added value. It discussed about bending technology in general, about its priciple and parameters. Then there is overview of most used methods of bending at press brake. bending tools, its process of production and tool clamping. The main emphasis is placed on press brake machines. There are discussed the main types of machines, structure of machine and last but not least there are presented selected world manufaturers of press brake machines. For a better idea there is showed production of particular component in manufacturing plant in the end. Acquisition of the project is in simple description of press bending technology and way of work on press brake machines. The useful trasfer may be for example to education.
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Manufacturing of fireplace insert exchanger
Běhounek, Martin ; Staněk, Vojtěch (referee) ; Podaný, Kamil (advisor)
This master’s thesis deals with a proposal of production technology of a fireplace insert. Based on various solutions of production and documented calculations, charring has been elected as the most optimal technology. According to the requirements of thermal resistance and weldability the component will be made of boiler metal plate 11 416. Based on checking and technological calculations process of charring on press BAYKAL APHS 3110x180 has been proposed with the nominal power of 180 tons. The verification of bends was realized using computer simulations. Bending tools are made of steel 12 050. A technical-economic evaluation is also part of this master’s thesis.
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Design of forming tool production technology using the additive method of 3D printing
Obadal, Jan ; Vašíř, Jakub (referee) ; Sedlák, Josef (advisor)
This bachelor thesis deals with a plan of a forming device manufacturing technology utilising additive methods of 3D printing. The theoretical part of this thesis deals with the characteristics of sheet metal forming technology and the characteristics of additive technology. The practical part of this thesis contains a breakdown of the current state and it deals with usage of the current forming tool. In terms of the practical part, there is an innovation draft whose goals it to speed up the manufacture of a particular pressed piece. The principle of this innovation is the utilisation of a single-purpose machine which is optained through the additive method of 3D printing. The optimal combination of printing parameters and tool geometry are found through prototype testing. To keep the product measurements accurate requires modified proportiong of the semi-finished product. The final tool is capable of bending two pressed pieces at the same time. During the process of bending, it is necessary to review the measurements of every 25th pressed piece and to revise the position of a bottom dead center. The lifetime of this innovative tool is set to 600 pieces. Technological and economical evaluation shows return of invesments and reduced time due to the application of this innovation, thanks to which the bending time is reduced by 50 %.
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Proposal of production technology of trough
Rérych, Pavel ; Staněk, Vojtěch (referee) ; Podaný, Kamil (advisor)
Elaborated thesis presents a proposal of technology for the production of modular. The modular is manufactured by ACO Industries k.s. from stainless steel 17 240 with thickness 1.5 mm. Literary studie is focused on Bending as the most favorable technology with respect to tender documentation. Based on technological calculations and available machinery TruBend 5130 press with nominal force 1 300kN was selected for part manufacturing process. Forming tools are made of Cr - Mo tool steal. The thesis also includes technical and economic evaluations.
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Production Possibilities of Press Brakes
Hrazdíra, Michal ; Jopek, Miroslav (referee) ; Řiháček, Jan (advisor)
The bachelor thesis deals with the production possibilities of press brakes. This is a literary research, in which the aim of the work is to describe the principle of bending. It also focuses on common and special tools and their use in engineering practice. The first part of the work is focused on general bending technology, which discusses the basic principles and possibilities of this method. The main chapter is the bending itself, where the individual types of machines, their components, tools and clamping systems are introduced and described. Furthermore, modern tools and their application in engineering practice are presented. In the last part, the production of the switchboard cabinet is presented on a CNC press brake.
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