Justification for the Choice of the Locating Charts of the Workpieces in the Fixtures During Machining on Multipurpose Machining Centers of the Drilling-Milling-Boring Group

Authors

  • V. O. Ivanov Sumy State University
  • V. O. Zaloha Sumy State University
  • Ye. V. Basova National Technical University «Kharkiv Polytechnic Institute»

DOI:

https://doi.org/10.31649/1997-9266-2018-141-6-111-118

Keywords:

fixture, locating chart, accuracy, quality, flexibility, workpiece

Abstract

The issues of ensuring the accuracy and quality of parts machining on CNC drilling-milling-boring machine tools in modern multiproduct manufacturing require continuous improvement. The number of charts for setup complex geometry parts in the conditions of multiaxis machining requires a well-grounded choice of the locating chart of the workpiece and specifies special requirements for fixture design. Based on the analysis of manufacturing processes for the manufacture of machine-building products of different groups on multipurpose machining center, a system analysis of locating charts workpieces in fixtures was performed. The article deals with the reasonable choice of the locating charts of workpieces considering their design and technological features. The results of analytical studies of typical representatives of the parts of different groups are presented, which allowed to highlight the main difficulties in the implementation of their machining. The characteristic features of locating a number of groups of parts using fixtures are described in detail. Based on the results of analytical studies the method of a reasonable choice of the locating chart of the workpiece during the machining on the drilling-milling-boring machine tools is offered. The formation of requirements for functional elements of fixtures, providing the appropriate methods of implementation is considered. The result of solving a technological problem in the work was an orderly presentation of the methods for implementing theoretical locating charts of workpieces, considering their relationship with the geometric shapes of the workpiece. The practical value of the research is to implement the proposed method at the design stage of fixtures, which will reduce the cost of fixture design in the conditions of multiproduct manufacturing.

Author Biographies

V. O. Ivanov, Sumy State University

Cand. Sc. (Eng.), Assistant Professor, Assistant Professor of the Chair of Manufacturing Engineering, Machines and Tools

V. O. Zaloha, Sumy State University

Dr. Sc. (Eng.), Professor, Head of the Chair of Manufacturing Engineering, Machines and Tools

Ye. V. Basova, National Technical University «Kharkiv Polytechnic Institute»

Cand. Sc. (Eng.), Assistant Professor of the Chair of Technology of Mechanical Engineering and Metal-Cutting Machine Tools

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Рекомендована кафедрою технології машинобудування та металорізальних верстатів ВНТУ

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Published

2018-12-28

How to Cite

[1]
V. O. Ivanov, V. O. Zaloha, and Y. V. Basova, “Justification for the Choice of the Locating Charts of the Workpieces in the Fixtures During Machining on Multipurpose Machining Centers of the Drilling-Milling-Boring Group”, Вісник ВПІ, no. 6, pp. 111–118, Dec. 2018.

Issue

No. 6 (2018)

Section

Mechanical engineering and transport

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