DESIGN ASPECTS OF INSTALLATION DEVICES OF THE SUPPORT RINGS

The processes of manufacturing machines and appliances show a continuous tendency to increase the degree of automation. An important role in the automation of manufacturing processes is played by the constructive technologicality of the product. It is important to use a minimum number of components, which have a construction as technological as possible in terms of automation. In this context, the use of supporting rings as fasteners is welcome. The design of the installation devices of these rings requires the knowledge of their deformation forces, information that is missing in the profile literature. The authors set their goal to develop the method for calculating the forces required to deform the supporting rings with a rectangular transverse profile and their maximum allowable deformations. The calculation relationships were obtained by formalizing the supporting ring through a bar with a fixed end and studying its deformation using Mohr's integral. The article lists some types of the supporting rings used in the construction of machines and appliances, their advantages and disadvantages, aspects of their automatic installation: deformation and installation methods, precision of joint orientation, optimal design, calculation of forces required for deformation and the maximum permissible deformation value. As a result of the research carried out, recommendations were developed regarding the calculation of some constructive parameters of the devices for installing the supporting rings.

The system design of external cladding installation robot

In the installation process of large-scale external cladding, the labor intensity is high, and it is dangerous and hard to guarantee good construction quality. In view of these issues, this study designs a construction robot for external cladding installation, as a better solution. First, the advantages and disadvantages of the current building external cladding hanging process are discussed. The components, suitable for automatic installation, are selected to develop an automatic installation process for the building external cladding. According to the process steps and installation action flow, the installation robot is first adjusted. After the design of a step-by-step workflow of positioning and installation, a robot with a six-degree-of-freedom string-mixing mechanism is designed. Finally, a prototype of the proposed external cladding installation robot is developed, and the system is experimentally verified under simulation conditions and real operation. The test results show that the external cladding installation robot system has a strong theoretical basis. The series-parallel hybrid six-degree-of-freedom structure is reasonable, design wise. It helps to complete the automatic installation of the building external cladding and improve the automation level of large-scale plate installations.

ASSESSMENT OF PURITY OF SWITCHING OFF AND INCREASE IN RELIABILITY OF WORK OF THE MASTER CLUTCH WITH THE FRICTION DISKS WORKING IN OIL

Methodology of determination of moment of conduct is worked out are leashes, at the shutdown of master clutch with the disks of friction, working in transmission oil, tracked vehicle by mass a 17,5 t, taking into account tensions of internal friction in moving layer of oil. Solutions are proposed on reduction of partial transmission of moment from a leading disk to slave, for example, use of technical design with automatic installation of spacing between all disks of friction at switching off of main friction clutch The developed technical solutions increase reliability of work of the clutch with the friction disks working in oil and also can be used for new projects and modernizations of the existing designs.

ENSURING QUALITY OF INSTALLATION OF PRINTED CIRCUIT BOARDS BASED ON ORGANIZATION OF MACHINE-TO-MACHINE INTERACTION AND 3D-INSPECTION

The article discusses the application principles of the industry 4.0 concept to improve the basic technological processes of electronics production. The problems of quality assurance in the automatic installation of printed circuit boards. Examples of the introduction optical inspections and fluoroscopy to reduce the marriage are given. The features of screen printing processes and their control using 2D and 3D inspections are considered. The location structure of the automatic optical inspection installations in the automatic line of printed wiring and communication of the automatic screen printing printer and 3D solder paste inspection is presented. A process model for the automatic installation of printed circuit boards using the elements of Industry 4.0 is presented. The organization of machine-to-machine interaction increases the automation of the system and eliminates the «human factor», as a result of which the production process is accelerated and the probability of occurrence erroneous actions resulting in nonconformities of products with standards is reduced. The tasks of organizing and certification of 3D fluoroscopy electronics, as well as the actual improving tasks the typical automatic assembly line of printed circuit boards, are considered.