Teaching management and maintenance of CNC machine tools

[Abstract] the production of teaching tools and the working characteristics of the machine, from the management and maintenance, CNC machine tools that use the process of teaching problems and to analyze the reasons for proposed improvements.

[Keywords:] CNC machine tools, management, maintenance

(Abstract) From the difference of teaching machine and production machine, the paper poits out the problems about teaching CNCm achine tools in the management and maintenance process, and analyzes the reasons and giving improvement measures.The experiment oft eaching indicates that the effective of teaching is improving obviously.

(Keywords:) Teaching CNC machine, Management, Maintenance,
0 Introduction NC machine tool is the use of digital signal processing on the machine to control movement and its machine tools, numerical control technology and machine tool technology is the result of combining [1,2], it has high precision and reliable quality, high efficiency, adaptive processing of parts, etc. and make the growing has become a symbol of machinery and equipment manufacturing.

China's current situation is [3]: a serious lack of skilled domestic NC, hindering the improvement of our manufacturing strength, six ministries, the Ministry of Education launched the "manufacturing and modern services shortage of skilled manpower training project", for high-skilled training of personnel made specific proposals. Many vocational colleges under its own characteristics, combined with market needs, the creation of the CNC technical expertise, to meet the practical teaching, in addition to setting training base, but also have been equipped with modern CNC machine tools and other equipment. CNC is a precision mechanical and electrical integration products, expensive, demanding its management and maintenance, how to manage and protect these CNC machine tools, to better meet the teaching needs, to maximize their advantages, have become common in all schools concern. This article is based on the Research training school teaching, according to the principle of CNC machine tools and the use of the structure characteristics, combined with practical experience in equipment management, analysis of the use of CNC machine tools for teaching problems, and the improved measures to for reference.

1, the characteristics of CNC machine tools teaching teaching CNC machine CNC machine tools and production compared with mainly has the following characteristics: 1 use for different purposes. Production of CNC machine tools The main purpose is to improve productivity, create more economic benefits to production Lord. teaching CNC machine is mainly used to meet the teaching, the student's theoretical knowledge into practice through an intuitive understanding of the machine, is a pilot based in different machine operator .2. production operation of CNC machine tools staff, usually with rich practical experience of workers. teaching CNC machine operators, mostly beginners - students, for the first time theoretical knowledge into practical operation, little experience, so a higher failure rate repair .3 and managed in different ways.

CNC machine tools are often used in the production with a professional maintenance staff, usually in a planned, systematic management and maintenance. Teaching professionals because of the lack of CNC machine tools for management and preventive maintenance, often after failure to make up, few will Failure to eliminate the efficiency in the bud .4 different. Compared with the production of CNC machine tools, CNC machine tools for teaching as a demonstration machine tools, most of the time in the suspension state, the machine utilization is not high, may result in waste of resources.

2 problems other universities through teaching exchange between relevant personnel, combined with our experience of teaching practice, teaching and use of CNC machine tools in the management of the problem summarized as follows: 1 machine running more accidents, such as crashes, hit knife, super-way frequent occurrence of such phenomena, resulting in decreased .2 precision machine tool failure, you can not receive timely and effective processing, machine tools sick, wounding more work, resulting in devastating machine failure, caused huge losses to the management of the existence .3 vulnerability, lack of systematic maintenance of the machine, planning, prevention of failure can not play the role of .4 machine operators and maintenance personnel accountability is not strong, when problems arise, instead of actively dealing with, but blame each other, directly affect the normal teaching work .5 repair is not timely, the students class time is unreasonable, or even conflict, some teachers sense of duty, in order to catch the easy way class, class merging multiple groups, number of students around there the phenomenon of a machine tool, teaching is very poor .6 through surveys, training students to reflect the effect is not very good, with very different expectations, which are not properly teaching.

Links to more Research Papers Download http://www.hi138.com many causes machine "downtime" is serious, the students can not learn what is essential to CNC machine tools can not play its due role, resulting in a resource waste, 3 Analysis of CNC machine tools for teaching the management and maintenance problems, though the reasons vary, but can be summarized as: a manager without special training, lack of equipment, management expertise, not on the CNC machine tools The point of strict inspection and maintenance plans, and whereabouts of others is not due to face advice, leading to maintenance personnel can not be timely troubleshooting, Troubleshooting delayed a direct impact on the normal teaching .2 management lack of responsibility, do not know enough on the machine, work has not planning, is caused by the lack of systematic maintenance of machine tools, the main reason for anticipatory self-responsibility .3 maintenance staff is not strong, low level of technology and can not appear in the fault processing is the main tool of work sick. 4 students in the training inadequate preparation, operation, careless, do not follow the required steps, are leading machine tool operation occurs during the collision, crash, super-way phenomenon is due to the lack of practical experience .5 teachers themselves, to machine tool structure, the principle is not deep enough to understand, lectures lack of flexibility of some structures, interpretation of the principle issues is not clear. students already experience less and less motivation to learn is the main reason students find difficult to accept. 6 teachers and students work on the training not pay enough attention, just a simple task, with little consideration the effect of teaching is the main reason of teaching effectiveness.

4 improvements based on the above analysis, combined with the actual situation, the following improvements: 1 hire professionals to manage the equipment, the development of scientific management methods. According to the different characteristics of various types of CNC machine tools, combined with their actual use, reference manual machine tools to develop a reasonable, standardized management and maintenance of CNC machine tools systems, maintenance of equipment do Sanding, that is regular, grading, will be one .2 should pay attention to "dual" construction of teachers [4]. NC machine is a mechanical, electrical, hydraulic and pneumatic machinery and electronic products in one, with the characteristics of technology and knowledge-intensive, requiring CNC machine operation and maintenance personnel, not only have knowledge of all aspects, but also has extensive experience and strong practical ability to build a comprehensive teaching force is technology and scientific management, proper maintenance of the premise of CNC machine tools to improve the operator's responsibility .3, problems to deal with when positive, it can not be resolved in time to find someone to help resolve and prevent Machine Injured, sick of work, so as not to affect the selection of the normal teaching work .4 strong sense of responsibility for regular professional training for teachers. Practice has proved that through training and study, is the relatively short time in CNC machine operation and maintenance requirements.

5 between the teaching and maintenance of flexible work arrangements, so that teaching, service correct, for example, can make use of teaching machine utilization is not high during the period of time, some routine maintenance on the machine and repair .6 training prior to the students safety Education, learning rules, stressed the importance of operations in strict accordance with regulations, if able to do so, you can let the students on the computer simulation exercises, to prevent collision knife, crashes and other accidents [5].

5 Conclusion 1, the management and maintenance of CNC machine tools is a very important task.

CNC machine tool management and maintenance personnel, not only to master the mechanical, electrical, pneumatic, hydraulic, control, testing and other knowledge, but also familiar with the servo drives, computer, PLC and PLC programming works, but also with the appropriate professional standard of English .2 only be done on CNC machine tools and scientific management, reasonable and timely maintenance to ensure the normal operation of machine tools, to better serve teaching .3 Whether they are teachers or the management, maintenance personnel, should have a high degree of responsibility heart, to give full play to the role of CNC machine tools, and train more high-quality high-skilled personnel for China's equipment manufacturing industry to make greater contributions.

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