Authors: A.V. Balashov, M.I. Markova, S.L Leonov, A.O. Sherdansev

Title of the article: Two-support lathe

Year: 2026, Issue: 2, Pages: 5-16

Branch of knowledge: 2.5.6. Engineering technology

Index UDK: 621.9.06

DOI: 10.26730/1999-4125-2026-2-5-16

Abstract: The use of specialized machines for large-scale and mass production conditions is determined by the high level of productivity in processing parts of a specific type and purpose. The processing performance is ensured by reducing the auxiliary time for operations, the methods of installing the workpiece, the selection of cutting tools and cutting modes. The design and operation of such equipment for large-scale and mass production types is an urgent area. The article discusses the main stages of designing a two-stop turning machine for boring holes in a conical sleeve. Based on the tasks and expected results presented in the terms of reference, the layout of the lathe has been developed, and a kinematic scheme has been presented. To eliminate the error in the installation of the workpiece, a scheme for making compensation in the size of the static setting of the machine is presented. To coordinate the movement of the right and left calipers, the systems for loading workpieces and unloading parts, turning the spindle on and off, and the duration of movement of the machine's working bodies, which make up the overall automatic cycle, a cyclogram of machine operation has been developed. A 3D model of the machine and design documentation for the machine were developed, on the basis of which a lathe was made for boring the surface of the sleeve from the right and left sides from one installation of the workpiece. The workpieces are loaded automatically through the feeder. The operation of the main elements of the machine is realized with the help of ball screw pairs and stepper motors. The manufactured machine conforms to the technical specification. To improve the accuracy of the positioning of the machine components and adjust the cutting modes, calculations of transients based on the theory of automatic control were carried out. The final stage of putting the machine into operation is debugging the control program.

Key words: lathe design stages adaptive control 3D modeling

Receiving date: 24.12.2025

Approval date: 15.05.2026

Publication date: 29.06.2026

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