I. Preface CNC CNC lathe processing has been increasingly applied to modern manufacturing, and has the advantage that ordinary lathes cannot match. The CNC lathe processing mainly has the following features: 1. CNC CNC lathe processing transmission chain is short, compared with the ordinary lathe spindle drive is no longer a motor belt gear deputy mechanism speed, but the use of horizontal and vertical feed, respectively, by the two servo motor drive movement is completed, no longer use the...
Since the United States developed a CNC lathe at the end of the 1950s, the machine tool manufacturing industry has entered the digital control era. China also produced the first generation of CNC machine tools in the 1960s. However, when China entered the era, everyone knew that. . In the 1980s we went to see the world's level of CNC machine tools, the gap is 20 years, in fact, there is still hope to catch up, but the state-owned factories do not push forward, to the 90's, we look at the world...
With the advancement of science and technology and the development of the machine tool industry, the popularity and the level of performance of CNC machine tools have become an important indicator of a country's equipment manufacturing industry and its core competitiveness. Recently, the HTMC-30 CNC turning and milling complex machining center with a total investment of 215 million yuan was officially put into production at Hebei Saiqiang Heavy Industry. The industry believes that the project...
The 13th Shenzhen Machinery Exhibition was held in Shenzhen Convention and Exhibition Center. At this exhibition, Mitsubishi Electric's MV series of CNC wire-cut EDM machines was first released globally. The new MV series not only revolutionizes the automatic threading performance, but also uses reel-type linear motor drives, which greatly improve the machining accuracy. The automatic wire-threading success rate of the electrode wire is greatly improved, and the corresponding range of the wire...
At present, China's machine tool industry is in a period of rapid development and improvement. It has made great strides in basic technologies, design and manufacturing processes, high-end technologies, and development of new functions. The development and growth of the machine tool industry benefits from the continuous application and promotion of new automation technologies in the machine tool industry. The development and progress of CNC machine tools are all accompanied by the imprint of...
Some time ago, the old section wrote an article on "CPC processing low-cost orders, harming oneself, hurting colleagues, and pitting customers! Please observe the reserve price" article on the old section evaluation machine (public number). Feelings of emotion, my heart is thinking about how a good industry will come to our hands. We have to work harder than the unit price. There are more than one million CNC machining machines in China. If we can save 5% of the processing time, instead of...
July 29, reporters from the Ningxia Hui Autonomous Region Commission by letter window has learned Zhongwei in Ningxia Dahe Machine Tool Co., Ltd. commitment "2MK2263 × 200 high-power marine diesel engine machining with CNC honing machine" and Yinchuan rivers NC Machine Co. undertaken " 2MK2250 × 150 high-power marine diesel engine machining with CNC honing machine "project, won the national" high-end CNC machine tools and basic manufacturing equipment "major projects to support science and...
The balance of the comprehensive processing capability of CNC lathe machining parts is a single CNC grinding machine. It is difficult to complete the entire processing content of one part, and it needs to be coordinated with the processing steps of other equipments. Therefore, there is a requirement for balance between production cycle and workshop production capacity. . Therefore, it is necessary to give full play to the characteristics of CNC grinding machine processing, and the CNC lathe...
With the enhancement of computer functions, CNC machine tools have added many functions, such as multi-axis linkage, on-line measurement of workpieces, application of large-capacity tool magazine, self-test and alarm of various machining states, and adaptive control of digital control power supply. These make CNC machine tools more powerful, more convenient to use, and a wider range of processing. For example, the Swiss AGIE-200D CNC wire-cutting machine can be combined with four axes to...
First, the proposed tool compensation: With the end mill machining the workpiece on the CNC machine, it can be clearly seen that the tool center motion gauge does not coincide with the workpiece contour because the workpiece contour is formed by the end mill motion envelope. The center of the end mill is called the tool point of the tool (the 4th and 5th coordinate CNC machine is called the tool position vector), and the motion track of the tool point represents the movement track of the tool....
Since the numerical control exhibition is electrolytic machining for the processing of complex profiles represented by the integral impeller blade profile, the calculation of the cathode motion trajectory is quite complicated. If manual programming is used, the workload is very large. Therefore, it is necessary to use computer-aided programming. . To this end, according to the requirements of CNC electroforming, VC4.0++ was used to develop the computer-aided programming software NCECM for...
How to improve the machining efficiency of metal cutting CNC machine tools, make full use of the maximum speed of the machine spindle, the maximum load and the maximum feed rate of the shaft, and process the workpiece with variable material and cutting amount, and at the same time automatically protect the machine tool and spindle system, and protect the expensive Imported tools, which have become more and more concerned by end users and machine tool builders. Israel's OMAT's ACM adaptive...
With the rapid development of the global machinery manufacturing industry, the application of numerical control technology in the field of mechanical processing is more and more extensive, and various CNC machining equipments appear correspondingly. From the numerical control machine tool alone, it can be divided into the key milling and milling processing of the drilling and milling machining center. Center turning machining center grinding and machining center, etc., their characteristics are...
In order to improve the machining accuracy and working efficiency of CNC machine tools, the temperature of the CNC machine oil tank must be controlled within a certain range. On the one hand, the change of oil temperature directly affects the change of the temperature field of CNC machine tools, and the change of temperature field affects the change of displacement field. The displacement field changes inevitably affect the machining accuracy. On the other hand, the temperature changes,...
Recently, at the Dalian International Machine Tool Exhibition, Dalian Dongxin Automation Engineering Co., Ltd. successfully exhibited CNC machine tools using multi-channel modular CNC system. The multi-channel modular CNC system is the product transformation result based on the research and development of the SME Innovation Fund Project of the Ministry of Science and Technology in 2004, which indicates that the research results have entered the practical stage of the product. At present, the...
The CNC system of the machining center developed by Guangzhou CNC Equipment Co., Ltd. was exhibited at the 10th China International Machine Tool Exhibition and was well received. The CNC system developed by Guangzhou CNC has adopted the Pentium processor to achieve high-speed control. The system is simple to operate, shortens the adaptation time of workers and improves production efficiency. This system uses 54 G commands of international standards, including 13 compound cycle commands, which...
A large-scale CNC crankshaft grinding machine MK82125/H of Shanghai Machine Tool Works Co., Ltd. officially went offline and passed the initial acceptance of the user. The machine is a mobile layout of the wheel frame, and the head, tailstock and grinding wheel realize the synchronous control mode of the startup, which provides great convenience for processing. The machine has a maximum processing weight of 10 tons, a maximum turning diameter of 1.4 meters, a maximum processing length of 8...
Recently, at the Dalian International Machine Tool Exhibition, Dalian Dongxin Automation Engineering Co., Ltd. successfully exhibited CNC machine tools using multi-channel modular CNC system. The multi-channel modular CNC system is the product transformation result based on the research and development of the SME Innovation Fund Project of the Ministry of Science and Technology in 2004, which indicates that the research results have entered the practical stage of the product. At present, the...
First, the proposed tool compensation: With the end mill machining the workpiece on the CNC machine, it can be clearly seen that the tool center motion gauge does not coincide with the workpiece contour because the workpiece contour is formed by the end mill motion envelope. The center of the end mill is called the tool point of the tool (the 4th and 5th coordinate CNC machine is called the tool position vector), and the motion track of the tool point represents the movement track of the tool....
In the initial stage of the development of CNC machine tools, the mechanical structure did not change much compared with the general machine tool, but only in the automatic shifting, tool holder and table automatic indexing and handle operation. With the development of numerical control technology, considering its control mode and use characteristics, it puts higher requirements on the productivity, processing precision and life of the machine tool. The main mechanism of CNC machine tools has...
First, the proposed tool compensation: With the end mill machining the workpiece on the CNC machine, it can be clearly seen that the tool center motion gauge does not coincide with the workpiece contour because the workpiece contour is formed by the end mill motion envelope. The center of the end mill is called the tool point of the tool (the 4th and 5th coordinate CNC machine is called the tool position vector), and the motion track of the tool point represents the movement track of the tool....
The axis of the outer and outer circles or the inner hole is parallel to the axis of the outer circle but does not coincide (deviate from each other by a certain distance), called an eccentric workpiece. The workpiece whose outer circle and outer circle are eccentric is called the eccentric shaft. The eccentric shaft is usually machined on a lathe and adopts an appropriate installation method. When machining eccentric workpieces, pay special attention to the accuracy of the parallelism and...
First, the proposed tool compensation: With the end mill machining the workpiece on the CNC machine, it can be clearly seen that the tool center motion gauge does not coincide with the workpiece contour because the workpiece contour is formed by the end mill motion envelope. The center of the end mill is called the tool point of the tool (the 4th and 5th coordinate CNC machine is called the tool position vector), and the motion track of the tool point represents the movement track of the tool....
Single chip microcomputer STM32L151CCU6 Seiko original 32.768KHZ 3215 (3.2*1.5mm) 12.5P SMD aluminum electrolytic capacitor In production, it is often encountered that the machining accuracy of CNC machine tools is abnormal. Such faults are highly concealed and difficult to diagnose. There are five main reasons for this type of failure: {1} The machine feed unit has been changed or changed. {2}The zero offset [NULL OFFSET] of each axis of the machine is abnormal. {3} Axial backlash [BACK LASH]...
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