Thermal growth measurement and compensation for integrated spindles

Hsieh, Kuen-Hung; Chen, Tsair-Rong; Chang, Paul; Tang, Chia-Hui

doi:10.1007/s00170-012-4041-3

Cited by 14 publications

(4 citation statements)

References 12 publications

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“…Such corrective measures are often carried out for thermal stabilization of the entire machine or individual structural units (e.g., [51][52][53][54][55][56][57][58][59][60]). However, as motor spindles are usually the main sources of heat, there are a series of studies that deal with the modeling of spindles and their metrological investigation for the identification of correction values (e.g., [41,[61][62][63][64][65][66][67][68][69][70][71][72]). A review on this topic is given in [73].…”

Section: Influence Of Thermal Load On Manufacturing Accuracymentioning

confidence: 99%

Cooling of motor spindles—a review

Denkena

Bergmann

Klemme

2020

Int J Adv Manuf Technol

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Thermally induced loads in motor spindles can cause a number of undesired effects. As a result, the process capability of spindles, and thus, the productivity of a process can decrease. Future motor spindles will be exposed to higher mechanical and especially thermal loads due to trends aiming to increase power densities and maximum speeds. These trends are amplified by increasingly powerful drive concepts and developments in bearing technology. Therefore, researchers assume that it will not be possible to raise the performance potential of spindles due to insufficient cooling of its heat sources. A series of different cooling concepts have been researched and developed in recent decades. These developments have been made for different purposes. They also differ considerably in terms of their cooling principles and cooling performance. In this article, these cooling approaches and the motivations for their development are described. Firstly, the causes of heat development in motor spindles are described in a historical context. Subsequently, the effects of heat development on the manufacturing-relevant properties of motor spindles are revealed. Finally, current deficits in the area of spindle cooling and the need for the development and transfer into industrial practice of more efficient and cost-effective cooling concepts to overcome future challenges are discussed.

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Section: Influence Of Thermal Load On Manufacturing Accuracymentioning

confidence: 99%

Cooling of motor spindles—a review

Denkena

Bergmann

Klemme

2020

Int J Adv Manuf Technol

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“…For motorized spindle, the thermal growth due to temperature raise becomes a critical issue to be considered with the increase of speed and power of motorized spindle [19]. The main heat sources in the motorized spindle are motor and bearings [20].…”

Section: Introductionmentioning

confidence: 99%

Modeling and analysis of unbalanced magnetic pull in synchronous motorized spindle considering magneto-thermal coupling

Feng

Zhang

Liu

et al. 2022

International Journal of Applied Electromagnetics and Mechanics

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The unbalanced magnetic pull (UMP) is one of the main vibration sources of the motorized spindle. A calculation model of UMP in a synchronous motorized spindle considering the magneto-thermal coupling is proposed in this paper. The finite element analysis models of the electromagnetic field and the temperature field of a motorized spindle are first established. Then a two-way coupling analysis method considering the effect of temperature variations on electromagnetic material properties of the motor is proposed. An experiment is conducted to verify the efficiency of this method. The thermal deformations of the spindle are calculated and used to analyze the air-gap variations between rotor and stator of the built-in motor. The 3D finite element electromagnetic model is adopted to calculate the UMP in the motorized spindle. The analysis results show that the eccentricity caused by thermal deformation can generate large UMP in the motorized spindle.

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“…[17][18][19] The purpose of analyzing the thermal characteristics of spindle bearing is to realize the machine tool error compensation during operational process. [20][21][22] Therefore, the reliability optimization design is carried out to solve the problem caused by the excessive deformation of machine tool spindle in this paper. Among the currently available reliability algorithms, an efficient and easy method based on the advanced mean value (AMV) is widely used in the reliability loop of performance measure approaches.…”

Section: Introductionmentioning

confidence: 99%

Reliability optimization design of deformation of CNC lathe spindle considering thermal effect

Liu

Zhang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part O:

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Angular contact ball bearings are widely used in the field of rotating machinery due to their obvious advantages such as relatively good positioning accuracy, high speed rotating performance and low cost, which have already become the most important transmission components. The heterogeneous thermal deformation caused by the high speed effect of bearing parts will lead to excessive noise and even gluing, which can further significantly reduce the machining accuracy of machine tool. Therefore, it is vital to improve the deformation resisting capability and operational reliability of the whole system. For this purpose, this paper presents a reliability model for computerized numerical control (CNC) lathe spindle by considering thermal effect. A five-degree-of-freedom quasi-static model considering thermal deformation is firstly proposed to calculate contact load and contact angle. Then the transient thermal network method is used to solve the temperature value of multi-node spindle-bearing system, and the validity of the proposed model is verified by experiments at different speeds. Next the modified first-order and second-moment method (FOSM) is used to calculate the reliability and reliability sensitivity of CNC lathe spindle deformation model considering thermal effect. Finally, the constrained nonlinear optimization method for the reliability model is proposed and applied to CNC lathe spindle. The results show that the reliability of the optimized model is significantly improved and the reliability robustness is enhanced.

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Thermal growth measurement and compensation for integrated spindles

Cited by 14 publications

References 12 publications

Cooling of motor spindles—a review

Cooling of motor spindles—a review

Modeling and analysis of unbalanced magnetic pull in synchronous motorized spindle considering magneto-thermal coupling

Reliability optimization design of deformation of CNC lathe spindle considering thermal effect

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