IMPROVING THE MANUFACTURABILITY OF THE CARRIAGE OF A TURNING AND SCREW-CUTTING MACHINE WHILE ENSURING THE STABLE SPATIAL POSITION OF THE REVERSAL HEAD
Rubrics: MECHANICAL ENGINEERING
Authors:
1.
Samara State Technical University
(Dep. “Engineering Technique, Machine-Tools and Tools”, Associate Professor)
employee
Samara, Samara, Russian Federation
employee
Samara, Samara, Russian Federation
2.
Samara State Technical University
(Department of Technology of Mechanical Engineering, Professor)
employee
Samara, Samara, Russian Federation
employee
Samara, Samara, Russian Federation
3.
Srednevolzhsky Machine Tool Factory
(Head of the Design and Technology Center)
employee
Samara, Samara, Russian Federation
employee
Samara, Samara, Russian Federation
Type:
Article
Pages:
from 4
to 11
Status:
Published
Received:
03.02.2025
Accepted:
15.02.2025
Published:
28.03.2025
Subject area:
VAC 2.5.6 Технология машиностроения
UDK 621.9.06 Машины и установки. Основные элементы и вспомогательные устройства. Конструкция, компоновка и принципы работы в целом
BBK 345 Общая технология машиностроения. Обработка металлов
UDK 621.9.06 Машины и установки. Основные элементы и вспомогательные устройства. Конструкция, компоновка и принципы работы в целом
BBK 345 Общая технология машиностроения. Обработка металлов
Language:
Russian
Keywords:
spatial reorientation, carriage, head, machine tool, stiffness, elements of modeling
Abstract (English):
The phenomenon of spatial reorientation of the machine reversal head is considered, which introduces additional errors in the machining accuracy. The study objective is to evaluate the influence of some design features of a turning and screw-cutting machine carriage on its torsional stiffness while ensuring stable spatial position of the reversal head. A number of field experiments are carried out on turning machines of 16B16F3 and SAMAT-400SC "Vector" models, as well as numerical simulation of the stress-strain state of the reversal head carriage. Numerical experiments using QE modeling in ANSYS environment for three carriage design options: a basic design, a design with no stiffeners, and a design with no stiffeners and heel. The result analysis shows that the removal of stiffeners and heels from the basic carriage design in order to improve manufacturability leads to a slight decrease in the torsional stiffness of the carriage bridge and, as a result, to an increase in the error of reorientation of the reversal head. However, compared to the basic carriage design, this reduction is insignificant and the proposed improvement in the manufacturability of the carriage, while excluding stiffeners and heels from the design, can be implemented.
The phenomenon of spatial reorientation of the machine reversal head is considered, which introduces additional errors in the machining accuracy. The study objective is to evaluate the influence of some design features of a turning and screw-cutting machine carriage on its torsional stiffness while ensuring stable spatial position of the reversal head. A number of field experiments are carried out on turning machines of 16B16F3 and SAMAT-400SC "Vector" models, as well as numerical simulation of the stress-strain state of the reversal head carriage. Numerical experiments using QE modeling in ANSYS environment for three carriage design options: a basic design, a design with no stiffeners, and a design with no stiffeners and heel. The result analysis shows that the removal of stiffeners and heels from the basic carriage design in order to improve manufacturability leads to a slight decrease in the torsional stiffness of the carriage bridge and, as a result, to an increase in the error of reorientation of the reversal head. However, compared to the basic carriage design, this reduction is insignificant and the proposed improvement in the manufacturability of the carriage, while excluding stiffeners and heels from the design, can be implemented.
Keywords:
spatial reorientation, carriage, head, machine tool, stiffness, elements of modeling
spatial reorientation, carriage, head, machine tool, stiffness, elements of modeling
1. Denisenko AF, Zubenko VL. Improving the accuracy of metal-cutting machines based on the analysis and synthesis of technological systems: monograph. Samara: Samara State Technical University; 1999.
2. Denisenko AF. Spatial reorientation of the carriage of a CNC lathe when reversing / MATEC Web of Conferences 329, 03053. 2020. doi: org/10.1051/matecconf/202032903053.
3. Denisenko AF. Forecasting criteria for machine tool operability based on design and technological support for the operational properties of compounds [dissertation]. [Samara (RF)]: Samara State Technical University; 2000.
