Research on Machining Knowledge Base for Numerical Control System

2012 ◽  
Vol 271-272 ◽  
pp. 1628-1631
Author(s):  
Fei Xue ◽  
Xiao Feng Zhang
Keyword(s):  
Knowledge Base ◽  
Three Dimensional ◽  
Numerical Control ◽  
Machining Process ◽  
Sql Server ◽  
Three Dimensional Model ◽  
Numerical Control Machining ◽  
Server Software ◽  
Increase Productivity ◽  
Design Software

According to the rapid and efficient requirement of numerical control machining process, a machining knowledge base is developed by building the parameterized models based on the Pro/Engineering three-dimensional design software, using the Visual C++. NET and Microsoft SQL Server software as knowledge base background server. Because of the renewable, large capacity, and three-dimensional model characteristics, the machining knowledge base has the ability of reducing tool stock and preserving optimized parameters, which greatly increase productivity and decrease manufacturing costs.

Study on Simulation of Virtual Numerical Control Machining Process

2014 ◽  
Vol 701-702 ◽  
pp. 223-226
Author(s):  
Shuang Wu
Keyword(s):  
Three Dimensional ◽  
The Body ◽  
Numerical Control ◽  
Machining Process ◽  
Two Dimensional ◽  
Cnc Milling ◽  
Numerical Control Machining ◽  
Intersection Algorithm ◽  
Dimensional Simulation ◽  
Tool Cutting

This paper is study on the two-dimensional simulation of the machining process, and three-dimensional simulation. Analog three-axis CNC milling machining entity, it will be processed rough triangular facets discrete and discrete vector geometry and tool scans the body to do intersection algorithm to simulate the tool cutting process by continually updating the blank data to achieve material simulation removal process.

Application of Bentley Power Rail Track Software in the BIM Railway Design

2014 ◽  
Vol 587-589 ◽  
pp. 1091-1094
Author(s):  
Xi Sheng ◽  
Hua Peng Luo ◽  
Ping Wang
Keyword(s):  
Cross Sections ◽  
High Efficiency ◽  
Three Dimensional ◽  
Digital Terrain Model ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Rail Track ◽  
Terrain Model ◽  
Digital Terrain ◽  
Design Software

Belonging to the Bentley Microstation series which work as one of the BIM platforms, the Bentley Power Rail Track shows huge advantages in the railway design for its visibility, high efficiency, advance, reliability and so on. This paper introduces the way to build the digital terrain model, alignments, cross sections, turnouts and to display the three-dimensional model of the railway for the Bentley Power Rail Track 3D railway design software. It provides application preparation for the BIM railway design and achieves the preliminary exploration of BIM applications. Bentley Power Rail Track proves capable of the BIM railway design.

The Design of Turn-Mill Process Planning for Mass Customization Wheel Rim

2016 ◽  
Vol 693 ◽  
pp. 936-943
Author(s):  
Gou Zheng Zhang ◽  
Yuan Zhi Zhou ◽  
Jiang Han ◽  
L. Xu
Keyword(s):  
Mass Customization ◽  
Numerical Control ◽  
Machining Process ◽  
Normal Vector ◽  
Planning Problem ◽  
Body Parts ◽  
Numerical Control Machining ◽  
Surface Machining ◽  
Wheel Rim ◽  
Revolving Body

Targeted at numerical control machining process of mass customization vehicle wheel rim revolving body parts and its fixture planning problem, using the dot product method between the unit normal vector of the feature facet, it was provide to distinguish the main direction of machining surface, machining position of workpiece was determined, and NC machining process of integrated procedure was designed. The loaded and taken out of the wheel rim workpiece were analyzed according to the two-dimensional plane clamping method, the clamping point position of wheel rim workpiece can be determined. Using the principle of planar mechanism kinematic to analyze one’s claw of turn-mill fixture kinematics trace, so that a quick clamping structure can reduce the cylinder stroke was designed. This fixture device was convenient and reliable.

Optimization of Planar Honing Process for Surface Finish of Machine Tool Sliding Guideways

2017 ◽  
Vol 139 (7) ◽  
Author(s):  
Kory Chang ◽  
Masakazu Soshi
Keyword(s):  
Machine Tools ◽  
Cubic Boron Nitride ◽  
Three Dimensional ◽  
Numerical Control ◽  
Machining Process ◽  
Cnc Machine Tools ◽  
Cnc Machine ◽  
Manufacturing Method ◽  
Traditional Manufacturing ◽  
Sliding Guideways

Sliding guideways are often used as the foundation for linear motion in computer numerical control (CNC) machine tools due to their high damping capabilities especially for heavy duty machining applications. However, the traditional manufacturing process with grinding is time-consuming, and the product’s sliding performance has not been optimized nor clearly understood. In order to increase productivity, a machining center based manufacturing method with cubic boron nitride (CBN) milling tools was introduced and tested by researchers. While greatly reducing manufacturing time and cost, a rougher milled surface, in comparison to traditional grinding, is a possible concern for the performance as well as the life of sliding guideways. In this study, a novel planar honing process was proposed as a postprocess of CBN milling to create a finish surface on hardened cast iron sliding guideways used for CNC machine tools. A design of experiment (DOE) was conducted to statistically understand significant factors in the machining process and their relationship with surface topography. Effective planar honing conditions were discovered and analyzed with three-dimensional (3D) and two-dimensional surface parameters.

An Octree Approach to Rough Machining

1987 ◽  
Vol 201 (3) ◽  
pp. 157-163 ◽  
Author(s):  
M F Yuen ◽  
S T Tan ◽  
W S Sze ◽  
W Y Wong
Keyword(s):  
Three Dimensional ◽  
Numerical Control ◽  
Path Generation ◽  
Layer By Layer ◽  
Rough Machining ◽  
Numerical Control Machining ◽  
Solid Models ◽  
Cutter Path ◽  
Jigs And Fixtures ◽  
Cutter Path Generation

This paper presents an octree subdivision based algorithm of automatic cutter path generation for machining on a numerical control machining centre. Both the stock and the part are represented by solid models. The machining strategy is based on a layer by layer approach taking care of the cutter strength and the variation of the part geometry. This approach allows the problem to be reduced from a three-dimensional to a two-dimensional cutter path generation problem which is solved by a quadtree representation of the plane. The method can be easily extended to include the jigs and fixtures and any other obstacles which would be represented by solid models. Algorithms are described in Pascal-like structure.

Research on Technologies of Augmented Reality for CNC Machining Process Simulation

2013 ◽  
Vol 579-580 ◽  
pp. 276-282 ◽  
Author(s):  
Zhi Yan Ma ◽  
Guang You Yang ◽  
Xu Wu Su
Keyword(s):  
Process Simulation ◽  
Physical Simulation ◽  
Removal Rate ◽  
Cnc Machining ◽  
Numerical Control ◽  
Machining Process ◽  
Numerical Control Machining ◽  
Machining Process Simulation ◽  
Machining System ◽  
Real Machine

Based on Virtual Numerical Control machining system (VNC), a new method of Augmented Numerical Control machining system (ANC) which aims at the realization of NC machining process simulation in real machining environment is put forward. The System inputs continuous video images of real NC processing environment through camera to identify and locate the major machining and positioning parts of real machine in the image stream. And the virtual parts of VNC will be matched to the corresponding real ones of real machining system to achieve the registration of ANC. The NC system drives the virtual machining models for processing through a real machine. On the other hand, the actual running information of CNC machine are imported into the ANC system to drive some models of process variables such as cutting force, material removal rate, chip shape, tool temperature, cutting tool wear. ANC provides the platform to integrate the geometry and physical simulation based on actual information from real CNC machining environment.

Ontology-based modeling of part digital twin oriented to assembly

2020 ◽  
pp. 095440542094116
Author(s):  
Qiangwei Bao ◽  
Gang Zhao ◽  
Yong Yu ◽  
Sheng Dai ◽  
Wei Wang
Keyword(s):  
Information Filtering ◽  
Three Dimensional ◽  
Structural Heterogeneity ◽  
Machining Process ◽  
Digital Manufacturing ◽  
Three Dimensional Model ◽  
Digital Twin ◽  
Assembly Features ◽  
Inspection Data ◽  
Twin Modeling

The digital twin concept, as a widely accepted philosophy for a new generation of digital manufacturing research, plays a significant role in the Industry 4.0 era. As the prerequisite for in-depth application of digital manufacturing in assembly, the collecting, modeling and utilizing approach for historical data of machining process and inspection of part appear to be important to provide data support for integral manufacturing scenarios. However, the modeling approach to part digital twin is not comprehensive due to the structural heterogeneity of data, which hampers the real-time simulation and adjustment in assembly process. Therefore, a method of part digital twin modeling oriented to assembly is proposed in this article. The designing information of a part is obtained from a three-dimensional model with the model-based definition approach, while machining features are pre-defined and identified. Moreover, the assembly constrain relationships in the assembly unit that the part participate in are obtained, on account of which deviation transfer analysis can be accomplished, and key assembly features are filtered to be the carrier of processing and inspection data. An assembly-oriented part digital twin framework is constructed to demonstrate the main components and dataflow in creating a digital twin with information filtering and subsequent management. In addition, a case study is illustrated to show the entire process of part digital twin modeling and proves the practicality and efficiency of the method proposed.

Research on the Variable Ratio Gear Modeling and Transmission Ratio Test Method of Rack and Pinion Variable Ratio Steering Gear

2014 ◽  
Vol 721 ◽  
pp. 157-161
Author(s):  
Zi Ru Niu ◽  
Gang Yan Li ◽  
Shun Zeng ◽  
Tian Li Yan ◽  
Si Yu Zhang ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Modeling Method ◽  
Test Method ◽  
Machining Process ◽  
Transmission Ratio ◽  
Ratio Test ◽  
Variable Ratio ◽  
Three Dimensional Model ◽  
Ratio Curve ◽  
Related Test

A new modeling method for the variable ratio gear of the rack and pinion variable ratio steering gear was proposed in this paper. It was based on the characteristic that variable ratio gear pair meshing tooth profile surface are the envelope surface of each other and established a variable ratio gear three-dimensional model by simulating the gear machining process in CATIA and using Boolean subtraction operation. According to the related test standard of the variable ratio steering gear transmission ratio, a test bench was design and build, and the correctness of this modeling method was verified by comparing the designed variable ratio curve and the steering gear sample designed and processed by this method.

Sign in / Sign up

Export Citation Format

Share Document