Sustav za automatsko zavarivanje matica u sklopu postojećeg postava

master's thesis

• Title (english): Automatic nut welding system within the existing installation
• Author: Domagoj Jurendić
• Mentor: Tomislav Stipančić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-07-18, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; Production Mechanical Engineering

Abstract

U ovom diplomskom radu obrađena je konceptualna ideja i razrada automatizacije procesa varenja matica na prethodno hladno prešane proizvode, u cilju unaprjeđenja i modernizacije proizvodnog procesa tvrtke KM-Kovnica d.o.o. KM-Kovnica slovi za najveću hrvatsku tvornicu za proizvodnju dijelova od metala za autoindustriju i druge visokotehnološke branše. Tvrtka koja je osnovana 2013.g. i dio je KÖNIG METALL grupacije koja iza sebe ima više desetljetno iskustvo u proizvodnji dijelova od metala i obradi metala.

Svrha ovog rada jest predstaviti rješenje za robotizaciju i modernizaciju proizvodnog procesa u odjeli varenja, točnije jednom njegovom segmentu koji se bavi varenjem matica postupkom elektrootpornog projekcijskog varenja, a koje se u trenutačnom postavu obavlja u potpunosti ručno na sveukupno desetak strojeva s tom namjenom. Osnovni cilj ove automatizacije je postizanje visoke razine kvalitete završnog proizvoda, te postizanje ujednačene kvalitete, zatim modernizacija i smanjenje broja potrebnih radnika na fizički i psihički zahtjevnim radnim mjestima.

Za modeliranje potrebnih dijelova i elemenata robotske stanice poslužio je softverski paket za izradu tehničke dokumentacije i 3D modeliranje SolidWorks 2017. Za simuliranje postrojenja i analizu ciklusa korišten je softverski paket RoboDK. Stanicom, njenim elementima kao i samim robotom upravlja PLC u kombinaciji s HMI korisničkim sučeljem koje je programirano unutar Siemens-ovog softverskog paketa TIA Portal v15.1, dok je komunikacija između PLC-a i same robotske stanice, obzirom da se radi o simulacijskom okuženju, izvedena i isprogramirana unutar Python-a.
U sklopu same robotske stanice integrirana je stanica za vizijsku kontrolu zavarenosti matica, gdje se prethodno zavaren komad snima kamerom, te se provjerava ispravnost odrađenog postupka. Navedena vizijska kontrola također je izvedena Python programskim jezikom.

Abstract (english)

In this diploma paper we deal with the conceptual idea and elaboration of automation of the process of welding nuts on previously cold-pressed products, in order to improve and modernize the production process of the company KM-Kovnica d.o.o. KM-Kovnica is known as the largest Croatian factory for the production of metal parts for the automotive industry and other high-tech industries. The company, which was founded in 2013. and is a part of the
KÖNIG METALL Group, which has decades of experience in the production of metal parts and metal processing.

The purpose of this paper is to present a solution for robotization and modernization of the production process in the welding department, more precisely one of its segments dealing with welding of nuts by electric resistance projection welding, which is currently performed entirely by hand on a total of ten machines. The main goal of this automation is to achieve a high level of quality of the final product, aswell as to achieve uniform quality, then modernization and reduction of the number of workers needed in this physically and mentally demanding jobs.

The software package for the preperation of technical documentation and 3D modeling SolidWorks 2017 was used to model the necessary parts and elements of the robotic station. The software package RoboDK was used to simulate the plant and analyze the cycle. The station, its elements and the robot itself are controlled by a PLC in combination with a HMI user interface programmed within Siemens' Tia Portal v15.1 software package, while communication between the PLC and the robotic station itself, since it is a simulation environment, is executed and programmed within Python.
As part of the robotic station itself, there is an integrated station for visual inspection of the welded parts, where the previously welded piece is recorded with a camera, and the correctness of the performed procedure is checked. The mentioned vision inspection was also performed in the Python programming language.

• Keywords: robotizacija; automatizacija; varenje matica
• Keywords (english): robotization; automatization; nut welding
• Language: croatian
• URN:NBN: urn:nbn:hr:235:954502
• Study programme: Title: Mechanical Engineering; specializations in: Design, Process and Energy Engineering, Production Engineering, Engineering Modelling and Computer Simulation, Marine Engineering, Industrial Engineering and Management, Materials Engineering, Mechatronics and Robotics, Autonomous Systems; Course: Mechatronics and Robotics; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-07-04 10:55:47