CNC Transformation Method for the Study

2012 ◽  
Vol 490-495 ◽  
pp. 1256-1260
Author(s):  
Xin Jian Xu

This paper describes the need for transformation of CNC machine tools, CNC machine tools and a brief introduction to the content and transformation of the advantages and disadvantages, but focuses on how the transformation of CNCmachine tools including CNC system selection, transformation NC modificationof the main mechanical components and CNC transformation of the main steps,and cited several examples of digital transformation, and finallyshows the numerical transformation of the problem and made recommendations.

2013 ◽  
Vol 823 ◽  
pp. 149-152
Author(s):  
Qiu Jun Wu ◽  
Jian Jun Wang

The system configuration of CNC machine has nearly a thousand parameters to be set. These parameters are set correctly or not directly affect the use of CNC machine tools and their performance. It has been proved that the parameter setting about the CNC machine can bring much convenience to deal with troubleshooting and maintenance of CNC machine, reduce troubleshooting time and improve machine utilization. But for some parameters such as pitch compensation, position of reference points, these parameters settings are not in the same way in different machine. If parts of these parameters or all of these are lost, its unable to restore the precision of the CNC machine. It will bring great losses to the manufacturing enterprise. So the data of protection is particularly critical. This paper describes the function and principle about the machine data protection, and presents the method and step of data backup and recovery for the CNC machine with the typical CNC system, such as FANUC, Siemens and Huazhong CNC system.


2020 ◽  
Author(s):  
V.V. Goman

This article observes the principles of construction and operation of the belt drives with detached electric motor and the drives with motor spindle. It also describes the characteristics of the elements used in spindles. In choosing a spindle, one proceeds from the primary and secondary requirements for the machine tool: rotation speed, power output, hardness, workspace dimensions, design complexity, application area, option of repair and replacement, and cost. The article considers the advantages and disadvantages of the spindles with additional mechanic gears and the motor spindles. As an example, we compare variants of upgrade of the «16M30F3» machine tool’s main drive. As a result, the following conclusions were made: motor spindle has more advantages than standard drive, but it is way more expensive and its repair is more difficult. Hence, this spindle type is only applicable to machine tools with high standards of quality and performance. Belt-driven spindle is special for easy repair and a wide range of technical specifications: one can choose multiple motor variants for one drive; again, it is much cheaper than motor spindle. However, final decision on spindle should concern the main requirements for the machine tool, workplace dimensions, application of the machine tool and, possibly, financial restrictions. Keywords: CNC machine tool, motor spindle, mechatronics, machine building, electric drive, electric motor, motion control, built-in motor.


2014 ◽  
Vol 556-562 ◽  
pp. 1413-1416 ◽  
Author(s):  
Tian Xiang Hu ◽  
Li Bing Zhang ◽  
Ting Wu ◽  
Feng Li Huang

To overcome some shortcomings of the linear Acc/Dec approach and the traditional S-curve Acc/Dec method, a novel velocity planning approach is proposed for CNC machine tools in this paper. The velocity planning model based on moving average technology is structured. The presented approach is used to make velocity planning for the CNC system. Comparing with the linear Acc/Dec algorithm, the presented method greatly improves motional smoothness of the linear Acc/Dec approach and reduces the complexity of the traditional S-curve Acc/Dec algorithm, which is more suitable for high-speed and high-precision CNC machine tools. The proposed approach is tested by simulation and experimentation. Simulation and experimental results have shown that the proposed method can significantly improve the motional smoothness and consumes less resource and shortens processing time for the CNC system.


2012 ◽  
Vol 220-223 ◽  
pp. 1107-1110
Author(s):  
Zhong Wei Ren ◽  
Ming Song ◽  
Lin Yang ◽  
Yu Kun He

An open numerical control system was built based on DMC movement controller. The system was simple and practical for most common CNC machine tools transform. The open numerical control system was introduced, the hardware connection and user interface program were designed combined with CA6140 lathe. The constructed CNC system has general functions of CNC system, the jog and interpolated motion can be realized, and this open control system can reach the requirements of customer. The experiments indicate that the open numerical control system can be applied to other machine tools, it has certain efficiency and usability.


2016 ◽  
Vol 693 ◽  
pp. 1780-1785
Author(s):  
Zhen Sang ◽  
Tai Yong Wang ◽  
Xiang Xiang Zou ◽  
He Nan Xu

Collision detection is the core of the numerical control system of intelligent manufacturing in the manufacturing process of rapid feeding, positioning and cutting. We need to avoid collision between the cutting tools, machine tools and workpiece. Based on the characteristic of five-axis CNC system, we analyze the advantages and disadvantages of Hierarchical Mesh Segmentation and Octree. At last, we use the collision detection algorithm of cuboid and separation axis to optimize the algorithm of traditional NC machine tool collision detection, which improve the detection efficiency and accuracy.


2011 ◽  
Vol 421 ◽  
pp. 657-660
Author(s):  
Dong Huang

CNC system is the core of CNC Machine Tools, reliability of CNC system is decided in its design stage. Design stage of CNC system can be divided into software design and hardware design. In software design, there is not perfect theories to follow, so every factors should be considered, different factors should have different measures; In hardware design, some methods and experience can be used for reference, and improve these methods and experience. In order to improve the CNC system reliability fundamentality, CNC system need stability base, measures should be done from design stage.


2021 ◽  
Vol 346 ◽  
pp. 03098
Author(s):  
Georgi M. Martinov ◽  
Liliya I. Martinova ◽  
Nikolay N. Fokin

The analysis shows that the development of programming tools for CNC systems is focused on the development of new machine canned cycles, including those for processing complicated surfaces, their complex combinations or complex mutual arrangement, but does not concern such issues as the universalization of cycle parameters. This does not make it impossible to transfer control programs from one CNC system to another. This work proposes an approach to the development of tools for creating universal cycles of typical technological transitions of machining on machines with different CNC systems.


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