Results 11 to 20 of about 397,942 (159)

Development of the spindle shaft for machining center using high thermal conductivity material

Journal of Advanced Mechanical Design, Systems and Manufacturing, 2023
Due to the high precision and high speed of spindles for machining centers, thermal issues cannot be avoided. The temperature rises of the spindle shaft, which is the rotating component, causes issues such as increased thermal displacement in the tool ...
Naohiko Sugita, Hiroshi Usuki
exaly   +4 more sources

Rotation Accuracy Analysis of Aerostatic Spindle Considering Shaft’s Roundness and Cylindricity

Applied Sciences (Switzerland), 2021
The rotation accuracy of the aerostatic spindle can easily be affected by shaft shape errors due to the small gas film clearance. Thus, the main shaft shape errors with the largest scale—that is, the roundness and cylindricity errors—are studied in this ...
Guoqing Zhang, Renfeng Zhao, Hechun Yu   +2 more
exaly   +4 more sources

Estimating temperature distribution and heat quantity of spindle shaft for machining centers

Journal of Advanced Mechanical Design, Systems and Manufacturing
The thermal issue of spindles for machining centers is still fundamentally unresolved. Thermal problems due to increased temperature of the spindle shaft lead to thermal displacement of the tool axis and an increase in friction torque, consequently ...
Naohiko Sugita, Hiroshi Usuki
exaly   +4 more sources

Evaluation of the Influence of Shaft Shape Errors on the Rotation Accuracy of Aerostatic Spindle—Part 1: Modeling

Electronics (Switzerland), 2022
In the research on the aerostatic spindle, for quantifying the influence of shaft shape errors on its rotation accuracy, the calculation models of unbalanced air film force (UAFF) and centrifugal inertia force (CIF) are established.
Guoqing Zhang, Hechun Yu
exaly   +2 more sources

Characterization of Dimensional Variations in Turning Process for Multistep Rotary Shaft of High-Speed Motorized Spindle

Machines, 2023
The surface accuracy of a multistep rotary shaft is very important in manufacturing and the assembly process of the high-speed motorized spindle of CNC machine tools, which is closely related to the machined dimensional variation induced by the turning ...
Ang Tian, Xueming Du, Shun Liu, Sun Jin
doaj   +2 more sources

An Approach to Combine House of Quality and Finite Element Method in Redesigning of Rotary Shaft Multi-Spindle Wheel Nutrunner Machine

Jurnal Teknik Industri
An engineering-to-order company has developed multi-spindle wheel nutrunner machines for automotive wheel mounting. The rotating shaft component that supports that machine has experienced compressive and twisting stress during operation, resulting in ...
Ayu Anggraeni Sibarani, Sugeng Waluyo, Muhammad Baharuddin Wahid Tosalili, Hilda Lutfiana   +3 more
doaj   +2 more sources

Analytical Modeling of the Spindle Shaft of Heavy Load Deflection Angle Milling Head Dynamics Using Timoshenko Beam Model

Advanced Materials Research, 2012
The spindle shaft of heavy load deflection angle milling head is an important functional component of 5-axis CNC machine tool, which has characteristics of high torque and high power, used for large and complex free-form surface processing.
Qiang Cheng, Zhifeng Liu, Zhi Feng Liu
exaly   +2 more sources

Cooling of spindle shaft for machining center using heat exchangers

Journal of Advanced Mechanical Design, Systems and Manufacturing
The cooling method for machining center spindles commonly involves utilizing a fixed-side jacket cooling system with lubricating oil or coolant as the refrigerant.
Naohiko Sugita
exaly   +3 more sources

A Study on the Static and Dynamic Characteristics of the Spindle System of a Spiral Bevel Gear Grinding Machine

Machines
To enhance the static and dynamic performance of the grinding wheel spindle system, with the gear grinding machine (YKF2060) as the research object, a static mechanics model of the spindle system was established based on Castigliano’s theorem, taking ...
Shuai Huang, Juxin Wang, Kaifeng Huang, Jianwu Yu   +3 more
doaj   +2 more sources

Research on the Calculation Method for the Contact Stress of Wind Turbine Main Shaft Bearings Based on Finite Element Analysis

Lubricants
Under alternating loads, the contact situation for self-aligning roller bearings in the main shaft of a wind turbine is complex. Few methodologies exist for calculating the contact stress of main shaft bearings.
Yi Zou, Wenlei Sun, Hongwei Wang, Tiantian Xu, Bingkai Wang   +4 more
doaj   +2 more sources