TH6213 CNC Boring and Milling Machine Spindle System Thermal Equilibrium Analysis

2013 ◽  
Vol 380-384 ◽  
pp. 47-50
Author(s):  
He Jian Liu ◽  
Zai Liang Chen ◽  
Ya Xin Xu
Keyword(s):  
Temperature Difference ◽  
Thermal Effects ◽  
Thermal Deformation ◽  
Great Influence ◽  
Equilibrium Analysis ◽  
Machining Accuracy ◽  
Milling Machine ◽  
Spindle System ◽  
System Temperature ◽  
Machine Spindle

The thermal deformation of machine tools has a great influence on machining accuracy. Studied on thermal effects of TH6213 CNC boring and milling machine spindle system, bearing heat grows with load and boring spindle extending length, and brings about a changeable temperature difference, which is hard to reduce. A subsection cooling scheme was proposed to reduce the spindle system temperature as well as the temperature difference to reduce the thermal deformation effects.

Thermal Characteristic Analyses of NC Machine Spindle System

2012 ◽  
Vol 479-481 ◽  
pp. 2481-2484 ◽  
Author(s):  
Zhong Qi Sheng ◽  
Xiang Dong Shi ◽  
Sheng Li Dai ◽  
Yan Jin
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Thermal Deformation ◽  
Thermal Characteristic ◽  
Numerical Control ◽  
Transient Temperature ◽  
Element Analysis ◽  
Spindle System ◽  
Nc Machine ◽  
Machine Spindle

This paper used finite element method to analyze thermal characteristics of numerical control (NC) machine spindle system, and studied the steady temperature field and the transient temperature field of the machine tool and the thermal deformation of the spindle at 3000 rpm. General finite element analysis software ANSYS is used for analysis. Through the analysis of the temperature field and thermal deformation of the spindle system, this paper finally obtained the deformation situation of the spindle system in thermal load. By changing the boundary conditions of the spindle system to analyze the heat distortion of the spindle system and the results showed that assembling a cooling jacket in front of the spindle box can signally reduce the thermal error of the spindle system.

Analysis and Optimization of Thermal Characteristics for NC Lathe Spindle System

2011 ◽  
Vol 341-342 ◽  
pp. 291-295
Author(s):  
Ru Fu Hu ◽  
Xiao Ping Chen ◽  
Huan Xin Yao
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Temperature Rise ◽  
High Speed ◽  
Thermal Deformation ◽  
Thermal Characteristics ◽  
Machining Accuracy ◽  
Spindle System ◽  
Modeling And Analysis ◽  
Mechanical Coupling

Improving thermal characteristics is a crucial approach for increasing machining accuracy of NC lathe. Modeling and analysis of thermal characteristics to a high speed NC lathe were implemented by using finite element method in this paper. Based on this, temperature rise characteristic of the whole spindle system was obtained. The thermal deformation of spindle system due to thermal-mechanical coupling was calculated. Layout and parameter were optimized for the radiating plate of spindle box. And this leads to a considerable reduction in the run-out error of spindle head. The optimization result reaches the expected goal.

A STUDY ON THE THERMAL CHARACTERISTICS OF THE GRINDING MACHINE APPLIED HYDROSTATIC BEARING

2015 ◽  
Vol 39 (3) ◽  
pp. 717-728 ◽  
Author(s):  
Bo-Sung Kim ◽  
Gyeong-Tae Bae ◽  
Gwi-Nam Kim ◽  
Hong-Man Moon ◽  
Jung-Pil Noh ◽  
...  
Keyword(s):  
High Precision ◽  
Thermal Deformation ◽  
Load Capacity ◽  
Great Influence ◽  
Thermal Characteristics ◽  
Machining Accuracy ◽  
Shape Error ◽  
Hydrostatic Bearing ◽  
Damping Characteristics ◽  
Grinding Machine

In order to activate the high precision and multi-functional machine tool, adequate technical level of the high-precision products is required. The hydrostatic bearings is used as a method for producing the high-precision products. The hydrostatic bearing has a relatively small run-out compared to its shape error by fluid film effect in hydrostatic state similar to pneumatic bearing and has high stiffness, load capacity and damping characteristics. In this study, we conducted a study on the thermal deformation of the grinding machine that has a great influence on the machining accuracy of the product. The temperature of the front bearing is 10°C or higher than the temperature of the rear bearing. Thermal deformation of the spindle was found to be dependent on the temperature of the hydrostatic bearing and could identify the overall thermal characteristics of the grinding machine.

Study on Thermal Deformation of Machine Tool under Different Environment Temperature

2013 ◽  
Vol 441 ◽  
pp. 576-579
Author(s):  
Fan Jie Luo ◽  
Dan Lu Song ◽  
Zhi Wei Li ◽  
Qing Yun Jian
Keyword(s):  
Machine Tool ◽  
Thermal Deformation ◽  
Field Analysis ◽  
Machining Accuracy ◽  
Milling Machine ◽  
Element Analysis ◽  
Front End ◽  
Vertical Milling ◽  
Environment Temperature ◽  
Vertical Milling Machine

Taking XK5034 vertical milling machine as the research object, its thermal characteristic's finite element analysis has been carried out through the ANSYS. The front-end of the spindle mainly affects the machining accuracy of machine tool, so on the basis of the temperature field analysis, its thermal deformation was analyzed under different environment temperature, and the change rules between environment temperature and thermal deformation of the front of the spindle was also acquired. The results show that the influence of machine tool thermal deformation under different temperature is obvious.

Dynamics Analysis of Milling Machine Spindle

2013 ◽  
Vol 345 ◽  
pp. 137-140
Author(s):  
Yan Ru You ◽  
Hong Bin Liu ◽  
Li Gao
Keyword(s):  
Working Conditions ◽  
Machine Tools ◽  
Numerical Control ◽  
System Structure ◽  
Dynamics Analysis ◽  
Milling Machine ◽  
Processing Quality ◽  
Spindle System ◽  
Machine Spindle ◽  
Specific Working

The paper takes the numerical control milling machine xk8140 as the research object. The machine tools spindle system digital model is established in UG. The spindle systems natural frequency is obtained throng dynamics analysis of milling machine spindle under specific working conditions, as well as the relational of vibration and error in harmony response situation. In view of the result the rational appraisal to the spindle system structure rationality is made. Accordingly, the irrational causes removed, that noise increasing, processing quality reducing obviously and so on attribute to the irrational structure of the spindle system machine tools when the spindle rotational speed achieve 4000rpm or higher.

Study on the Influence of Ambient Temperature on Spindle Box of the Wheel Groove Milling Machine Based on ANSYS

2013 ◽  
Vol 475-476 ◽  
pp. 1513-1516 ◽  
Author(s):  
Fan Jie Luo ◽  
Dan Lu Song
Keyword(s):  
Finite Element Method ◽  
Temperature Field ◽  
Ambient Temperature ◽  
Nuclear Power ◽  
Thermal Deformation ◽  
Environmental Temperature ◽  
Machining Accuracy ◽  
Milling Machine ◽  
Heat Sources ◽  
Front End

The spindle box is the key part of the machine, and the distribution of the temperature field and the thermal deformation will directly affect the machining precision under multiple heat sources. Taking the spindle box of the CX056 nuclear power rotor wheel groove milling machine as research object, the heat sources and boundary conditions were calculated, and the temperature field and the thermal deformation were established under action of different ambient temperature, using finite element method. Finally, the effects on the front end of the spindle were analyzed under different environment. The analysis result shows that the environmental temperature had an obviously effect on thermal deformation of the spindle box, and controlling environmental temperature reasonably can reduce the thermal deformation and improve the machining accuracy of machine tool.

scholarly journals Modeling and Measurement of Thermal Effect in a Flashlamp-Pumped Direct-Liquid-Cooled Split-Disk Nd:LuAG Ceramic Laser Amplifier

Photonics ◽  
2021 ◽  
Vol 8 (4) ◽  
pp. 97
Author(s):  
Shengzhe Ji ◽  
Wenfa Huang ◽  
Tao Feng ◽  
Long Pan ◽  
Jiangfeng Wang ◽  
...  
Keyword(s):  
Thermal Stress ◽  
Thermal Effects ◽  
Thermal Deformation ◽  
High Energy ◽  
Gain Medium ◽  
Wavefront Aberration ◽  
Experimental Measurements ◽  
Laser Amplifier ◽  
Design And Optimization ◽  
Ceramic Laser

In this paper, a model to predict the thermal effects in a flashlamp-pumped direct-liquid-cooled split-disk Nd:LuAG ceramic laser amplifier has been presented. In addition to pumping distribution, the model calculates thermal-induced wavefront aberration as a function of temperature, thermal stress and thermal deformation in the gain medium. Experimental measurements are carried out to assess the accuracy of the model. We expect that this study will assist in the design and optimization of high-energy lasers operated at repetition rate.

Experimental Analysis and FEM Calculation of the Thermal Deformation for the Spindle System of Machining Center

2008 ◽  
Vol 33-37 ◽  
pp. 1307-1312
Author(s):  
Mutellip Ahmat ◽  
Wei Cheng ◽  
Li Zheng
Keyword(s):  
Error Compensation ◽  
Thermal Deformation ◽  
Thermal Field ◽  
Theoretical Foundation ◽  
Thermal Error ◽  
Experimental System ◽  
Heat Sources ◽  
Fem Modeling ◽  
Spindle System ◽  
Machining Center

In this study, the chief heat sources of the spindle system for the TH6350 Machining Center are analyzed, and an experimental system based on the virtual instruments technology is presented, thirty-two thermocouple sensors are set at the spindle system of the machining center to measure the thermal field, and five electric vortex sensors are used to measure the thermal error of the spindle by five-point method. The FEM modeling of the thermal deformation of the spindle system is built up by based of I-DEAS, the temperature field and the thermal deformation of it are calculated, and the calculated values of the model tallies with the experimental values.The researching results provide a theoretical foundation for the improving design􀋈temperature controlling and the error compensation to the machining center.

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