Structure Analysis and Optimization of Precision Grinding Machine Bed

2011 ◽  
Vol 399-401 ◽  
pp. 1731-1735
Author(s):  
Wei Yang ◽  
Xiao Hui Lin ◽  
Yin Biao Guo ◽  
Jing Lin ◽  
Tao Jiang
Keyword(s):  
Modal Analysis ◽  
Solid Model ◽  
Initial Structure ◽  
Precision Grinding ◽  
Static Structure ◽  
3D Design ◽  
Inherent Frequency ◽  
Design Software ◽  
Grinding Machine ◽  
Model Frequency

This work presents a research on the static structure and modal analysis of precision grinding machine bed. The solid model is created with 3D design software SOLIDWORKS and analyzed by FEA software ANSYS. In order to alleviate the influence of deformation and vibration on precision grinding machine bed, some factors that can influence mass, max displacement and model frequency ware are analyzed. According to of analysis results, an optimization is carried out to determine the dimension and structure of precision grinding machine bed. Compared to the initial structure, the deformation of the optimal structure is less and inherent frequency is higher.

The Modal Analysis of Focusing Mechanism for Laser Anti-Counterfeit Platform in Production Manufacturing Engineering

2013 ◽  
Vol 345 ◽  
pp. 429-433
Author(s):  
Rui Tian
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Static Analysis ◽  
Optimization Design ◽  
Element Model ◽  
Vibration Modes ◽  
3D Design ◽  
Design Software ◽  
Manufacturing Engineering ◽  
The Finite Element Model

The use of 3D design software Inventor, established the mechanical structure and the finite element model of laser anti-counterfeit platform focusing mechanism in production manufacturing engineering. Through doing the modal analysis and static analysis of the mechanism, we found the natural frequency and Vibration modes of the structure of focusing mechanism, and proved the mechanism design was reliable and stable to avoid the failure of focusing caused by mechanical resonance and which provided the basis for further optimization design for production manufacturing engineering.

A Precision Grinding Machine for Diffusion Studies

1954 ◽  
Vol 25 (9) ◽  
pp. 865-868 ◽  
Author(s):  
Harry Letaw ◽  
Lawrence M. Slifkin ◽  
William M. Portnoy
Keyword(s):  
Precision Grinding ◽  
Diffusion Studies ◽  
Grinding Machine

scholarly journals A “Double Accuracy Theory” and Experimental Research on Precision Grinding

2020 ◽  
Vol 10 (6) ◽  
pp. 2030
Author(s):  
Lai Hu ◽  
Yipeng Li ◽  
Jun Zha ◽  
Yaolong Chen
Keyword(s):  
High Speed ◽  
Coordinate Measuring Machine ◽  
Precision Grinding ◽  
Machined Parts ◽  
Accuracy Theory ◽  
Machine Theory ◽  
Ultra Precision ◽  
Measuring Machine ◽  
Grinding Machine ◽  
Multi Body

In the global machining industry, ultra-precision/ultra-high-speed machining has become a challenge, and its requirements are getting higher and higher. The challenge of precision grinding lies in the difficulty in ensuring the various dimensions and geometric accuracy of the final machined parts. This paper mainly uses the theory of a multi-body system to propose a “double accuracy” theory of manufacturing and measurement. Firstly, the grinding theory with an accuracy of 0.1 μm and the precision three-coordinate measuring machine theory with an accuracy of 0.3 μm are deduced. Secondly, the two theories are analyzed. Aiming to better explain the practicability of the “double accuracy” theory, a batch of motorized spindle parts is processed by a grinding machine. Then the precision three-coordinate measuring machine is used to measure the shape and position tolerances such as the roundness, the squareness, the flatness, and the coaxiality. The results show that the reached roundness of part A and B is 5 μm and 0.5 μm, the squareness is 3 μm and 4.5 μm, and the coaxiality tolerance is 1.2 μm, respectively.

Design with Depth

2005 ◽  
Vol 127 (12) ◽  
pp. 32-34
Author(s):  
Jean Thilmany
Keyword(s):  
Computer Aided Design ◽  
Three Dimensional ◽  
3D Design ◽  
Computer Aided ◽  
University Professor ◽  
Business Web ◽  
Design Software ◽  
Computer Monitors ◽  
Web Surfing ◽  
Aided Design

This article discusses that how mechanical engineers will pair their already-familiar computer-aided design software with not-so-familiar three-dimensional (3D) displays for true 3D design. This is in accordance to a number of vendors' intent on supplying the newfangled computer monitors, within the next two decades. Although some of the devices are already on the market, affordable 3D monitors and displays seem to be more than a decade away, according to one university professor at work on such a project. Widespread adoption is still hindered by factors such as cost, software availability, and lack of a mouse-like device needed to interact with what’s on screen. Over the past 25 years, mechanical engineers have witnessed evolutionary change in design methods-from pen and paper to two-dimensional software and now to 3-D computer-aided design. While software makers have stepped up with sleeker and faster modeling capabilities, visualization lags. Computer users two decades out will carry out all business, web surfing, and gaming on 3-D displays. That next generation may well find the very idea of 2-D monitors to be as dated as record albums seem to teenagers today.

Structural Analysis of a Grinding Machine with Linear Motion Guide Applied

2013 ◽  
Vol 336-338 ◽  
pp. 1014-1019
Author(s):  
Seon Yeol Oh ◽  
Han Seok Bang ◽  
B. Y. Choi ◽  
Woo Chun Choi ◽  
S. J. Cho
Keyword(s):  
Finite Element ◽  
Structural Analysis ◽  
Structural Design ◽  
Element Model ◽  
Linear Motion ◽  
Precision Grinding ◽  
Base Side ◽  
Ultra Precision ◽  
Linear Motion Guide ◽  
Grinding Machine

A finite element model of an ultra-precision grinding machine that can have high precision and high stiffness is constructed and structural analysis is done with equivalent stiffnesses of linear motion guides by after structural design and the deformation of the grinding machine is obtained. In order to reduce the deformation of the grinding machine that causes bad influence, structural complement is conducted by adding ribs at the lower part of the column. Also, the straightness of the grinding machine is improved by lifting that the base side of the column.

The Precise Design and Machining of Formed Milling Cutters Profile Based on Feature Modeling

2007 ◽  
Vol 10-12 ◽  
pp. 791-795 ◽  
Author(s):  
W. Cheng ◽  
P. Liang ◽  
Yun Feng Bu
Keyword(s):  
Great Improvement ◽  
Feature Modeling ◽  
Rake Face ◽  
3D Design ◽  
Milling Cutter ◽  
3D Shape ◽  
Machining Quality ◽  
Design Software

When using the formed milling cutter to machine workpiece, the formed parts are cut by the milling with formed shape, so forms correspond to workpiece outline. In the 3D design software--SolidWorks, the relation of position of the workpiece profile and the milling each other is simulated. This project uses the function of 3D-shape of software to complete the 3D-entity-design of formed milling cutter profile and the drawing of rake face, thus designing the rake face profile directly, with the results of a great improvement on the design and machining quality and effectiveness.

scholarly journals Dynamic Modal Analysis of Vertical Machining Centre Components

2009 ◽  
Vol 2009 ◽  
pp. 1-10 ◽  
Author(s):  
Anayet U. Patwari ◽  
Waleed F. Faris ◽  
A. K. M. Nurul Amin ◽  
S. K. Loh
Keyword(s):  
Modal Analysis ◽  
Mode Shape ◽  
Modal Testing ◽  
Machine Component ◽  
Vibration Modes ◽  
Structural Dynamic ◽  
Element Simulation ◽  
Analysis Technique ◽  
Design Software

The paper presents a systematic procedure and details of the use of experimental and analytical modal analysis technique for structural dynamic evaluation processes of a vertical machining centre. The main results deal with assessment of the mode shape of the different components of the vertical machining centre. The simplified experimental modal analysis of different components of milling machine was carried out. This model of the different machine tool's structure is made by design software and analyzed by finite element simulation using ABAQUS software to extract the different theoretical mode shape of the components. The model is evaluated and corrected with experimental results by modal testing of the machine components in which the natural frequencies and the shape of vibration modes are analyzed. The analysis resulted in determination of the direction of the maximal compliance of a particular machine component.

Ultra Precision Grinding of Wafer Scale

2012 ◽  
Vol 516 ◽  
pp. 257-262
Author(s):  
Martin Hünten ◽  
Fritz Klocke ◽  
Olaf Dambon ◽  
Benjamin Bulla
Keyword(s):  
Tungsten Carbide ◽  
Surface Topography ◽  
Precision Grinding ◽  
Wafer Scale ◽  
Advantages And Disadvantages ◽  
Grinding Processes ◽  
Ultra Precision ◽  
Grinding Tool ◽  
Glass Optics ◽  
Grinding Machine

Manufacturing moulds for the wafer-scale replication of precision glass optics sets new demands in terms of grinding tool lifetime and the processes to be applied. This paper will present different approaches to grinding processes and kinematics to machine wafer-scale tungsten carbide moulds with diameters of up to 100 mm and more than 100 single aspheric cavities, each featuring form accuracies in the micron range. The development of these processes will be described and advantages and disadvantages of the approaches derived from practical tests performed on an ultra precision grinding machine (Moore Nanotech 350FG) will be discussed. Finally, a comparison between the developed processes is made where achieved form accuracies and surface topography are analyzed.

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