scholarly journals Research on a Five-Axis Machining Center Worktable with Bionic Honeycomb Lightweight Structure

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 74
Author(s):  
Lai Hu ◽  
Jun Zha ◽  
Fan Kan ◽  
Hao Long ◽  
Yaolong Chen
Keyword(s):  
Machine Tool ◽  
High Efficiency ◽  
Honeycomb Structure ◽  
Theoretical Research ◽  
Processing Efficiency ◽  
Actual Weight ◽  
Circular Tubes ◽  
Machining Center ◽  
Five Axis ◽  
Better Than

The processing of high-precision aerospace parts requires not only ultra-precision machine tools, but also high-efficiency processing. However, in order to realize high-efficiency processing, besides optimizing the system and process parameters, some subversive research can also be done on the machine tool structure. In this paper, the lightweight research is mainly carried out on the structure of machine tool worktable. The traditional workbench is very “heavy” and “slowness”. If the traditional workbench is subverted and reformed to reduce the weight, the processing efficiency will be improved qualitatively. Therefore, this paper studies the lightweight worktable of CFRP (carbon fiber reinforced polymer) in combination with the biological “honeycomb” shape. At first, the tensile, bending, compressive and laminar shear analysis of CFRP were carried out, and the comprehensive parameters were obtained. Simultaneously, the theoretical research and the honeycomb structure simulation and verification of CFRP worktable are carried out. The results show that the HACT (honeycomb arrangement of circular tubes) is 18.51% better than the SACT (straight arrangement of circular tubes) and 45.05% better than the OW (original worktable) by comparing and analyzing the weight of the three modes (HACT, SACT and OW). The actual weight of bionic honeycomb lightweight worktable is 1100 kg, while the simulation result is 1080.25 kg, with an error of 1.8%. Meanwhile, it is analyzed that the original workbench weight of the five-axis machining center is 2023 kg, while the simulation result is 1998.6 kg, with an error of 1.2%. The lightweight degree is reduced by 45.05%. However, the actual lightweight degree has been reduced by 45.63%. The error between simulation and actual is less than 1.3%. This kind of structural transformation has brought forward cutting-edge innovations to the machine tool processing industry. It provides a reference scheme for related enterprises in the future equipment renovation.

Design and Analysis of a Sawing-Milling Compound Machining Center for Special-Shaped Stone Products

2014 ◽  
Vol 610 ◽  
pp. 123-128
Author(s):  
Do Hong Zhao ◽  
Jing Sun ◽  
Ke Zhang ◽  
Yu Hou Wu ◽  
Feng Lu
Keyword(s):  
High Efficiency ◽  
Dynamic Performance ◽  
Processing Technology ◽  
Machining Accuracy ◽  
Processing Capacity ◽  
Under Five ◽  
Machining Center ◽  
Simultaneous Control ◽  
Five Axis ◽  
Better Than

Nowadays, the equipment for processing special-shaped stone products is developing towards high efficiency, intelligent and multifunction. Based on the features of stone processing technology, a sawing-milling compound machining center with eight axes and double five-axis simultaneous control for special-shaped stone products was designed. The dynamic performance and processing capacity were tested. Research shows that the sawing and milling compound machining in the same horizontal slide saddle is practicable. This machine can realize both vertical and horizontal machining under five-axis simultaneous control, and its machining accuracy is better than the normal industrial standard.

scholarly journals A geometric error tracing method based on the Monte Carlo theory of the five-axis gantry machining center

2017 ◽  
Vol 9 (7) ◽  
pp. 168781401770764 ◽  
Author(s):  
Jinwei Fan ◽  
Yuhang Tang ◽  
Dongju Chen ◽  
Changjun Wu
Keyword(s):  
Monte Carlo ◽  
Machine Tool ◽  
Test Piece ◽  
Great Influence ◽  
Numerical Control ◽  
Geometric Errors ◽  
Machining Center ◽  
Machining Errors ◽  
Five Axis ◽  
Tracing Method

This article proposes a tracing method to identify key geometric errors for a computer numerical control machine tool by cutting an S-shaped test piece. Adjacent part relationships and machine tool errors transform relationships are described by topology of the machining center. Global sensitivity analysis method based on quasi-Monte Carlo was used to analyze machining errors. Using this method, key geometric errors with significant influence on machining errors were obtained. Compensation of the key errors was used to experimentally improve machining errors for the S-shaped test piece. This method fundamentally determines the inherent connection and influence between geometric errors and machining errors. Key geometric errors that have great influence on machining errors can be determined quickly with this method. Thus, the proposed tracing method could provide effective guidance for the design and use of machine tools.

Development of a Virtual Milling Machining Center Simulation System with Switchable Modular Components

2013 ◽  
Vol 479-480 ◽  
pp. 343-347
Author(s):  
Chen Lung Wei ◽  
Hsin Yu Cheng ◽  
Chi Yuang Yu ◽  
Yung Chou Kao
Keyword(s):  
Machine Tool ◽  
Learning Process ◽  
Simulation System ◽  
Maintenance Cost ◽  
General Operator ◽  
Machining Center ◽  
Mechanical Components ◽  
Five Axis ◽  
Cnc Controller ◽  
Very High

The application of traditional three-axis milling machine center is very popular and the related application technology is also much matured resulting in mechanical components to be machined with good quality. Machine tool has therefore become an inevitable facility in precision manufacturing. Furthermore, the pursuit of higher precision machining has thus demanding five-axis machine tool to be adopted owing to its flexibility and capability in machining more precise mechanical components in shorter time. However, one of the key factors for the popularity in smooth introduction of five-axis machine tool would be based on a very user friendly learning and teaching environment. This is partly because two more rotational axes in a five-axis machine tool could generate very complex toolpath movement that is out of the imagination of a general operator. Furthermore, the price of an industrial five-axis machine tool is not normally affordable by an educational institute; to the worse, the maintenance cost is also very high. There is very high risk for a novice to collide during the learning process and this will generally cause big worry of a teacher. This paper aims for the development of a virtual machining center simulation system with switchable modular components to ease the learning process in getting acquainted with a five-axis machine tool. A five-axis machine tool consists generally of two modules: (1) CNC controller and Operation panel, and (2) machine tool hardware. The developed system will provide the novice with four CNC controller with operation human machine interface (HMI), and three typical types of five-axis machine tool, Head-Head (HH), Head-Table (HT), and Table-Table (TT), are also supported. The developed modularized and switchable machining center simulation system has been successfully developed and is very helpful to both learner and teacher

Turning-Milling Machining Center of Each Axis Movement Principle and the Headstock Structure Analysis

2014 ◽  
Vol 912-914 ◽  
pp. 878-881
Author(s):  
Lu Ping Sang
Keyword(s):  
Machine Tool ◽  
Roller Bearing ◽  
Numerical Control ◽  
Control Machine Tool ◽  
Angular Contact Ball Bearing ◽  
Double Row ◽  
Machining Center ◽  
Cylindrical Roller Bearing ◽  
Motor Drive System ◽  
Five Axis

Turning milling machining center are analyzed the structure and working principle of headstock of numerical control machine tool headstock consists of motor, drive system and components of the head of a bed, is mainly used to achieve the main movement of the machine tool. Spindle structure adopts precision double row cylindrical roller bearing and two-way thrust angular contact ball bearing group and type. The machine is the best combination of lathe and milling machine. Configuration French NUM1060 system, realize five axis control, a loading card can complete a variety of difficult machining of complex.

Application of Honeycomb Structure in Machine Tool Table

2011 ◽  
Vol 308-310 ◽  
pp. 1233-1237
Author(s):  
Dong Qiang Gao ◽  
Fei Zhang ◽  
Zhi Yun Mao ◽  
Huan Lin ◽  
Jiang Miao Yi
Keyword(s):  
Machine Tool ◽  
Structural Design ◽  
High Speed ◽  
Dynamic Performance ◽  
Inertial Force ◽  
Honeycomb Structure ◽  
Machining Accuracy ◽  
Aluminum Alloy Honeycomb ◽  
Better Than ◽  
Ansys Workbench

The aluminum alloy honeycomb structure used in the structural design of high-speed machine tool table to reduce the worktable’s quality, so that the inertial force generated from fast-moving reduced too. The new worktable and the original one both carried out static analysis and modal analysis by ANSYS Workbench respectively. From the result’s comparison, we can know that the new structure worktable’s static and dynamic performance are both better than the original one. The machine tool table’s machining accuracy has been raised.

Study on Post Processing for MIKRON Five-Axis Machining Center Based on Catia V5

2013 ◽  
Vol 650 ◽  
pp. 523-528 ◽  
Author(s):  
Zhan Rong Feng ◽  
Li Xia Wang ◽  
Jie Wang
Keyword(s):  
Theoretical Analysis ◽  
Machine Tool ◽  
Tool Path ◽  
Cnc Machining ◽  
Post Processing ◽  
Material Test ◽  
Machining Center ◽  
Five Axis

To solve the NC post processing problems of generated tool path file APT generated by Catia V5 in the application of MIKRON UCP600 Vario five-axis machining center, on the basis of the theoretical analysis of tool path parameter and data calculation, the post processor programmed with VC++ that is accordance with machine tool was used. It verified with Simulation and material test: the NC post possessing program can be directly used in CNC machining without manual modification. Furthermore, there was no mark by tool path and the accuracy of the size meets the requirements.

Measuring Points Selection for Laser Tracker Measurement of Five-Axis Machine Tool

2018 ◽  
Author(s):  
Qingzhao Li ◽  
Wei Wang ◽  
Hai Li ◽  
Jing Zhang ◽  
Zhong Jiang
Keyword(s):  
Machine Tool ◽  
High Efficiency ◽  
Optimization Criterion ◽  
Measurement Scale ◽  
Laser Tracker ◽  
Large Measurement ◽  
Measurement Efficiency ◽  
Five Axis ◽  
Selection Of

Due to the advantages of high efficiency, good flexibility and large measurement scale, the laser tracker measurement method is widely used in the error measurement of the machine tool. For the laser tracker measurement, the selection of the measuring points in the workspace has a significant influence on the identification effect of the errors. In this paper, the method to select the optimal measuring points is proposed. By construction of the suitable error vector and its corresponding error transformation matrix, the optimization criterion in robotic area is adopted to evaluate the identification effect of the measuring points. Based on the optimization criterion, the scheme of the measuring points selection can be established. The method proposed is validated by a case study. The method can help increase both the measurement efficiency and the error identification effect.

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