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Development and research of the press operating mechanism, made in the form of the wedge-joint mechanism with a curving wedge for separation operations

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Abstract

The applicability of a wedge-joint mechanism with a curving wedge in presses for the implementation of metal forming separation processes was substantiated. The paper states the fact that the wedge-joint mechanism graph of the deformation force change is the closest to the technological typical graph of the force change during separation. At the same time, the wedge-joint mechanism with a curving wedge has a lower height of the parts in comparison with the traditional crank mechanisms, which provides less elastic deformation and press dynamics. The use of the additional wedge mechanism in a press with the wedge-joint mechanism with a curving wedge to ensure the approximation motion is proved. This makes it possible to reduce the energy consumption for elastic deformation and further reduce the dynamic force. The mathematical models of the wedge-joint mechanism with a curving wedge, presented in the form of a two-slide link mechanism, were developed, allowing to perform its structural, kinematic, and dynamic analysis. Based on the analysis of the proposed mathematical models, dependencies were identified and a procedure for calculating the geometric, kinematic, and power parameters of wedge-joint mechanisms with a curving wedge for separation processes was developed. Comparison of the kinematic and dynamic analyses results carried out by analytical and graphic-analytical methods confirms the reliability of estimates, since their discrepancy is not more than 2.5%. Experimental studies have confirmed the adequacy of mathematical models. The error between the calculated and measured values of the forces on the slide does not exceed 10%.

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Authors and Affiliations

  1. Basics of Machines Design, Donbass State Engineering Academy, Akademichna Str., 72, 84313, Kramatorsk, Ukraine

    Sergii G. Karnaukh & Nataly V. Chosta

  2. Computerized Design and Modeling of Processes and Machines, Donbass State Engineering Academy, Akademichna Str., 72, Kramatorsk, 84313, Ukraine

    Oleg E. Markov

  3. Metal Forming Department, Pryazovskyi State Technical University, Universytetska str., 7, Mariupol, 87555, Ukraine

    Volodymyr V. Kukhar

Authors
  1. Sergii G. Karnaukh
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  2. Nataly V. Chosta
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  3. Oleg E. Markov
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  4. Volodymyr V. Kukhar
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Contributions

Sergii G. Karnaukh: developed research method.

Nataly V. Chosta: calculation of the forces ensuring in the stamp

Oleg E. Markov: force analysis.

Volodymyr V. Kukhar: literature review.

Corresponding author

Correspondence to Oleg E. Markov.

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This manuscript was submitted to only one journal. The submitted work is original and do not have been published elsewhere in any form or language (partially or in full). Results have been presented clearly, honestly, and without fabrication, falsification or inappropriate data manipulation (including image based manipulation). Authors adhered to rules for acquiring, selecting and processing data. Data, text and theories were the authors own. Proper acknowledgements to other works were be given and summarized.

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Karnaukh, S.G., Chosta, N.V., Markov, O.E. et al. Development and research of the press operating mechanism, made in the form of the wedge-joint mechanism with a curving wedge for separation operations. Int J Adv Manuf Technol 116, 3305–3314 (2021). https://doi.org/10.1007/s00170-021-07718-8

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  • DOI: https://doi.org/10.1007/s00170-021-07718-8

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