Flexible Fixtures for Parts Machining in Automobile Industry Vitalii Ivanov 1 , Ivan Dehtiarov 2 , Jozef Zajac 3 1,2 Sumy State University, Faculty of Technical Systems and Energy Efficient Technologies, 2 Rymskogo-Korsakova St., Sumy, 40007, Ukraine 3 Technical University of Kosice, Faculty of Manufacturing Technologies with a seat in Presov, 1 Bayerova St., Presov, 08001, Slovak Republic ivanov@tmvi.sumdu.edu.ua 1 , ivan_dehtiarov@tmvi.sumdu.edu.ua 2 , jozef.zajac@tuke.sk 3 Abstract. Fixtures play an essential role in production of high-quality and com- petitive products, especially under conditions of multiproduct manufacturing, which requires quickly re-equipment while transferring to the machining of parts of other nomenclature. Nowadays, the multiproduct manufacturing is the basic form of organization in the manufacturing and automobile industries. The article describes the ways of increasing of machining efficiency of parts of automobile industry at the contracting organizations, which are parts of automakers or work closely with them. For increasing the machining efficiency through the use of approaches to intensification of production, and also for performed analysis of locating charts for the majority of parts, which are included to the construction of machines, the principally new constructions of functional modules of modular adjustable fixtures for locating and clamping of parts are used. Use of the pro- posed construction with the possibility of automatized adjustment ensures the spreading of technological possibilities of metal-cutting equipment, decreasing of preparatory time and setup time, and therefore, assists improving of the effi- ciency of production planning. Keywords: automobile, fixture design, modular fixture, adjustable fixture, functional module, machining, efficiency, production planning. 1 Introduction Modern production is characterized by multiproduct manufacturing and instability of the volume of products output. The enterprises of the automobile industry have a large variety of parts, which require the machining for achieving the high accuracy of sizes, forms and relative position, and quality of surfaces in accordance to their intended service. In constructions of automobile units almost all types of parts, existing in design and engineering classifiers of machine-building, are presented, in particular: prismatic parts, covers, cylinder blocks, crankcases, shafts, rods, flanges, discs, bushings, pistons, levers, connecting rods, brackets, etc., which require the accurate location and reliable MMS CONFERENCE 2017, November 22-24, Starý Smokovec, Slovakia Copyright © 2018 EAI DOI 10.4108/eai.22-11-2017.2274155