Development of a production line for lathe beds made of high-strength concrete

The need to develop lathe beds made of ultra-high-strength concrete stems from the need to reduce vibrations during high-speed operation. Consequently, reduced vibrations will increase machining speed, reduce defects, and enable greater precision machining. The aim of this study is to develop a production line for ultra-high-strength concrete lathe beds using a disintegrator for mechanical activation of cement. To achieve this goal, the following tasks were solved: a technological requirement for mechanical activation of cement in machine tool manufacturing was formulated, a structural diagram of the production line was developed, the need to use a spatial 4R mechanism as the basic drive mechanism of the disintegrator was theoretically substantiated, and an experimental setup DID 2.4-0.7 was developed. An analysis of assembly and performance was performed, recommendations for the design of an industrial disintegrator were developed, and an industrial disintegrator DID 2.4-2.0 with drives based on a spatial 4R mechanism was developed. Individual components of the process line were developed, namely, a modified concrete mixer, vibrating screen, and steam generator, and reusable formwork for certain types of lathe beds was developed. Samples were developed and tested, yielding compression results exceeding 114.2 MPa, which fully meets the requirements of the manufacturer and buyer of lathe beds made of ultra-high-strength concrete. The results of an analysis of the influence of drive parameters on the productivity and quality of mechanical activation of cement are presented. It should be noted that a promising direction for further research is to refine mechanical activation modes for various ultra-high-strength concrete compositions.
EDN: LMJJPV, https://elibrary/lmjjpv

References

[1] Makarova E.A., Vetlitsyn M.Yu., Sharonov N.G. Adaptive grippers of robotic systems. Izvestiya VolGTU [Izvestia Volgograd State Technical University], 2023, no. 4, pp. 57–63, doi: https://doi.org/10.35211/1990-5297-2023-4-275-57-63 (in Russ.).

[2] Glazunov V.A., Laryushkin P.A., Shalyukhin K.A. et al. Structure, kinematics, and prototyping of a parallel manipulator with a remote center of rotation. Problemy mashinostroeniya i nadezhnosti mashin [Journal of Machinery Manufacture and Reliability], 2023, no. 6, pp. 54–61, doi: https://doi.org/10.31857/S0235711923060081 (in Russ.).

[3] Glazunov V.A., Skvortsov S.A., Kovaleva N.L. et al. Solution of the velocity and position problem for a modified rotopod mechanism with four kinematic chains. Stankoinstrument, 2025, no. 3, pp. 68–71, doi: https://doi.org/10.22184/2499-9407.2025.40.3.68.71 (in Russ.).

[4] Glazunov V.A., Levin S.V., Shalyukhin K.A Development of electromechanical manipulators based on permanent magnets. Problemy mashinostroeniya i avtomatizatsii, 2025, no. 2, pp. 70–75, doi: https://doi.org/10.52261/02346206_2025_2_70 (in Russ.). (Eng. version: J. Mach. Manuf. Reliab., 2025, vol. 54, no. 8, pp. 889–893, doi: https://doi.org/10.1134/S1052618825700736)

[5] Dvornikov L.T. As proof of the validity of the experience of structural synthesis of mechanisms. Teoriya mekhanizmov i mashin [Theory of Mechanisms and Machines], 2006, vol. 4, no. 1, pp. 44–48. (In Russ.).

[6] Vorobyeva N.S., Nesmiyanov I.A., Dyashkin A.V. et al. A robotic complex for the cultivation of vegetable crops. Izvestiya VolGTU [Izvestia Volgograd State Technical University], 2024, no. 4, pp. 41–44, doi: https://doi.org/10.35211/1990-5297-2024-4-287-41-44 (in Russ.).

[7] Laryushkin P.A., Khrestina A.A., Sinitsyna Yu.V. et al. On the issue of structural synthesis of kinematic chains of spherical mechanisms of parallel structure with linear drives. Problemy mashinostroeniya i nadezhnosti mashin, 2025, no. 2, pp. 3–11. (In Russ.).

[8] Zakharov M.N., Laryushkin P.A., Semenov A.V. Inverse kinematics of a kinematically redundant hybrid parallel mechanism. Vestnik mashinostroeniya, 2024, vol. 103, no. 9, pp. 739–743. (In Russ.). (Eng. version: Russ. Engin. Res., 2024, vol. 44, no. 11, pp. 1542–1546, doi: https://doi.org/10.3103/S1068798X24702873)

[9] Antonov A.V., Laryushkin P.A., Fomin A.S. Kinematic analysis of a novel 5-DOF delta-type parallel robot. Izvestiya RAN. Mekhanika tverdogo tela, 2024, no. 4, pp. 135–149. (In Russ.). (Eng. version: Mech. Solids, 2024, vol. 59, no. 4, pp. 1920–1929, doi: https://doi.org/10.1134/S0025654424603355)

[10] Kolovskiy M.Z. On some areas of modernization of the TMM course. Teoriya mekhanizmov i mashin [Theory of Mechanisms and Machines], 2003, no. 1, pp. 3–29. (In Russ.).

[11] Zhoga V.V., Nelyubova A.V. Substantiation of the computational dynamics scheme for a parallel-serial structure manipulator with additional coupling. Izvestiya VolGTU [Izvestia Volgograd State Technical University], 2024, no. 4, pp. 60–65, doi: https://doi.org/10.35211/1990-5297-2024-4-287-60-65 (in Russ.).

[12] Zhoga V.V., Nelyubova A.V. Kinematic synthesis of analytical laws of the actuator displacement of a manipulator with the parallel-sequential structure and additional coupling. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie [BMSTU Journal of Mechanical Engineering], 2024, no. 9, pp. 29–36. EDN: QHQDGZ (in Russ.).

[13] Malyshev A.P. Analysis and synthesis of mechanisms from the point of view of their structure. Izvestiya Tomskogo tekhnologicheskogo instituta, 1923, vol. 44, iss. 2. 95 p. (In Russ.).

[14] Reshetov L.N. Konstruirovanie ratsionalnykh mekhanizmov [Design of rational mechanisms]. Moscow, Mashinostroenie Publ., 1972. 256 p. (In Russ.).

[15] Idrisova S.M., Marchuk E.A., Maloletov A.V. Study of deformations of metal towers - supports of a parallel cable-driven robot. Problemy mashinostroeniya i avtomatizatsii [Engineering & Automation Problems], 2022, no. 2, pp. 113–123, doi: https://doi.org/10.52261/02346206_2022_2_113 (in Russ.).

[16] Marchuk E.A., Kalinin Ya.V., Ivanov M.A. et al. On mathematical modeling of sagging elements of large-sized parallel cable-driven robot. Izvestiya VolGTU [Izvestia Volgograd State Technical University], 2022, no. 9, pp. 56–62, doi: https://doi.org/10.35211/1990-5297-2022-9-268-56-62 (in Russ.).

[17] Vetlitsyn M.Yu., Sharonov N.G., Maloletov A.V. et al. Development of a complex of testing tools for studying adaptive reconfigurable structures. Problemy mashinostroeniya i avtomatizatsii [Engineering & Automation Problems], 2023, no. 4, pp. 99–106, doi: https://doi.org/10.52261/02346206_2023_4_99 (in Russ.).

[18] Merlet J.P. Jacobian, manipulability, condition number and accuracy of parallel robots. J. Mech. Des., 2006, vol. 128, no. 1, pp. 199–206, doi: https://doi.org/10.1115/1.2121740

[19] Voglewede P. Ebert-Uphoff I. Measuring "closeness" to singularities for parallel manipulators. ICRA, 2004, vol. 5, pp. 4539–4544, doi: https://doi.org/10.1109/ROBOT.2004.1302433

[20] Yarullin M.G., Galiullin I.A. Study on the Bricard mechanism using computer graphics algorithms. Vestnik tekhnologicheskogo universiteta [Herald of Technological University], 2015, vol. 18, no. 21, pp. 137–140. (In Russ.).

[21] Mudrov A.P., Khabibullin F.F., Pikmullin G.V. et al. Synthesis of spatial five- and six-link mechanisms with rotational pairs by the movement of the output link. Vestnik Kazanskogo gosudarstvennogo agrarnogo universiteta [Vestnik of Kazan State Agrarian University], 2022, vol. 17, no. 2, pp. 92–98, doi: https://doi.org/10.12737/2073-0462-2022-92-98 (in Russ.).