? FWV-L850Design and application of parametric CNC ? ? ? ? ? ? ? ? ? ? programming for machining center

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Yi Jianhao¹、Huang Hairong²

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 1 Foshan City South China Sea South Machinery Co., Ltd., ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?Foshan, 528000

? ? ? ? ? ? ? ? ? ? ? ? 2 School of mechanical and electrical engineering, Foshan ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? University, Foshan, 528000

? ? Abstract: This paper introduces the process and methods to realize the parametric CNC programming fowei L850 series machining center.The results can be achieved in a class of aluminum profile extrusion die parametric programming and processing,The 60 part is 5 integer programming class,Improve the work efficiency, reduce the cost.

Keywords: CNC programming, parametric, macro program

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1、Introduction

? ? ?With the development of computer technology into the mainstream with modern science and technology development and product market competition intensifies, the traditional mechanical processing technology is difficult to meet the modern product diversification development and rapid upgrade speed. In the face of the increase in the proportion of small batch production, the product delivery quality and cost requirements of the increase, the requirements of modern processing technology has a high flexibility.This result in the numerical control processing technology has been more and more attention. Numerical control technology is the core of advanced manufacturing technology, the overall level of CNC equipment marks a national industrial modernization level and the strength of the overall strength of the country.Compared with common processing method, numerical control process has the characteristics of high efficiency, high stability and high consistency. According to industry statistics, the production efficiency of numerical control equipment is more than that of 9:1, and the cost of maintenance and operation of CNC equipment and general equipment is 3:1, the ratio of the two is 4.7:1.Because the numerical control technology can process a variety of complex surface, many high-end manufacturing can only rely on numerical control technology to achieve. Numerical control machining has become the source of high added value in manufacturing industry. At present, the labor costs continue to rise today, many enterprises to the CNC equipment as the main subject of its technical transformation.

? ?CNC machining from early development axis to 3 axis and multi axis (more than 3 axis), from the single function of the CNC machine tool development to a processing center in a feature rich, the processing mode of operation has also changed. For example, early one machine tool often only for a part in a period of processing, and now the processing center will change several different processing objects in a day. This change needs to transform the CNC program frequently. On the other hand, due to the enterprise is mostly based on the needs of specific serialization, product production, processing object changes tended to change between the different series and specifications, namely, only a small number of shape parameters are changed. This leads to the need for the parametric CNC program.

? ? Parametric CNC program is commonly known as the variable NC program and machine operators can according to the machine tool reference parameters and machining parameters, several shape parameters a simple change to the program, can directly process shape similar workpiece [1]. Using parametric CNC programming method, the machine tool operator can not be modeled by CAD/CAM, directly on the CNC machine tool easily customized a variety of parts processing [1]-[5]. The serialization of industrial products, production, diversification of the parametric design of the CNC program, the specific needs of [6]-[7].

? ? ? Foshan area has a large number of shapes and processes similar to mechanical processing parts. Many manufacturers want to have the function of parametric programming in machining center. Therefore, Foshan fowei Precision Machinery Co., Ltd. with user demand and cooperation with Foshan Institute of science and technology to develop a parametric programming system FWV-L850 machining center. This article is the introduction of related work.