The purpose of higher vocational and technical education is to cultivate high-skilled applied talents that are urgently needed for economic and social development. As an important foundation of modern manufacturing technology, CNC processing equipment has been rapidly popularized and applied in China in recent years, in order to better cultivate CNC machining technology. Applying talents, service manufacturing and local economic development, we explored the use of a unit-integrated teaching model in the teaching of CNC Machining Technology. After gradually improving and perfecting, we achieved good teaching results. The nature of the course and the purpose of the teaching "CNC Machining Technology" is a major professional course for all majors in mechanical engineering. It is a practical, production-oriented, application based on multiple related professional courses. Professional skills course. Its task is to introduce the basic principle of CNC, especially computer numerical control and the basic structure of CNC machine tools. It focuses on the preparation of NC program and the debugging process of the machine, so that students are fully familiar with the operation of CNC lathes and CNC milling machines, and have the machining center machine tools. General knowledge. Through the study of this course, students should understand the basic knowledge of the working principle and maintenance of CNC machine tools; master the knowledge of CNC programming, CNC machine tool operation, MasterCAM automatic programming; can independently complete CNC lathe, CNC milling machine, machining center machine tool Programming and operation and the connection between CAM program and CNC machine tools; most students can obtain the intermediate-level qualification certificate for numerical control operation after intensive training, the programming ability of medium-complexity parts processing and the debugging ability of machine tools, some outstanding students After subsequent re-strengthening, it can obtain the professional qualification certificate for numerical control operation, which has the ability of programming and adjusting the processing of complex parts. 2 The course of construction and development of the course is accompanied by the maturity and popularization of CNC technology, especially with the implementation of the training of talented talents in China, the implementation of training programs and the establishment of national-level CNC technology training bases in our hospital in recent years. The Course of Processing Technology has also undergone tremendous development and improvement, and the teaching mode of the course has been adjusted and changed accordingly. The course of "CNC Machining Technology" in our institute was originally set up independently from the advanced manufacturing technology part of "Machinery Manufacturing Technology". At the beginning of the course, the college was based on the original CNC slow-cut wire cutting machine. The teaching CNC lathe and CNC milling machine of Huazhong CNC System Co., Ltd., together with the numerical control system simulation teaching software, constitute the experimental teaching system of the course. The course teaching is based on classroom teaching, coupled with computer simulation experiment, plus The organization implementation form of a small amount of machine tool operation follows the traditional teaching mode of knowledge-based learning in secondary technical education, and does not emphasize the skill training and training for students. With the orientation of the school's higher vocational education, the college has completed the market research of the numerical control blue-collar talent training, and has defined the job ability requirements of the students. Based on this, the college has invested a lot in the experimental training conditions. The teaching has greatly increased the proportion of practical training, and incorporated the NC professional qualification standards into the curriculum system, and implemented a dual certificate system to strengthen the training of students' numerical control skills. At this time, the teaching form is increased on the basis of the original. After 2 weeks of CNC machining unit training, the total teaching hours of the entire course increased. In 2005, with the completion of the construction of the national-level demonstration numerical control technology vocational education training base, the teaching conditions of the curriculum have been greatly optimized and improved, and the teaching reform of the curriculum has been further promoted to a deeper level, in order to fully utilize the potential of equipment use and The advantages of teaching staff, training the NC talents that are in short supply in the country, and exerting the demonstration and radiation effects of the national NC training base. On the basis of summarizing the teaching practice experience in recent years, we have fully implemented the teaching of CNC machining technology. Unit-based integrated teaching, which optimizes and integrates the original theory and practice teaching content, establishes a teaching and training system structure with outstanding skill training as a clear purpose, and achieves the teaching purpose of the course through a shorter teaching time. Good teaching effect. The design idea of ​​unit-based integrated teaching refers to the unit-based integrated teaching, which refers to the continuous arrangement of the theory and practice in the content of the course teaching in a continuous time period. Classroom teaching is the mainstay, practical training is the main body, the combination of learning and use, teacher-student interaction to achieve the teaching purpose as soon as possible, it is between theoretical teaching and practical teaching, but better than pure theoretical teaching and practical teaching. It is a good form of teaching organization for this course, which is based on skill training. The design idea of ​​unit teaching is: highlight the teaching objectives of this course, focus on the training of CNC machining technology application ability, refer to the relevant standards of relevant national vocational qualifications, based on the basic knowledge points of the course, and the modular teaching arrangement is The main line, combined with the equipment configuration and personnel conditions of the National Numerical Control Training Base of our institute, the combination of classroom teaching and real machine operation, the classroom teaching is based on knowledge content, and the on-site teaching is directly arranged for the skill content, so that the operation is emphasized. Skills training allows students to learn about their professional skills. This model is designed according to the technical standards of the relevant work and the requirements, should meet the requirements, and taking into account the actual needs of the job, according to the skills necessary to engage in modern manufacturing-related occupations to design courses and teaching. Focusing on individual ability and compound ability training, with relevant theoretical knowledge, it constitutes a teaching module, unified development of integrated modular teaching progress, and the establishment of an integrated modular teaching plan and implementation outline. In the teaching process, emphasize the effectiveness and controllability of the teaching process, so that each teaching unit has a practice report, each unit has processing results, each unit has a comment, according to the actual situation of the students mastering the skills of each module The progress is adaptively controlled. Try not to provide a system when processing A required part drawing encourages students to design processing content according to the specific conditions of materials, tools, machine tools and their own capabilities, in order to fully mobilize students' enthusiasm and subjective initiative, and cultivate students' ability to comprehensively apply knowledge and innovation ability. The module structure of the 4 course "CNC Machining Technology" course unit-based integrated teaching is to divide the whole teaching process into 10 small units (modules) according to the requirements of skill training. The first 9 small units are taught by the classroom and classroom. Programming exercises, hands-on exercises, actual parts processing, completion of practice reports, etc., and finally a separate unit of comprehensive intensive training (module), the specific arrangement is to facilitate the deployment of equipment during practical training, The programming contents of CNC lathes and CNC milling machines are combined and explained. The characteristics of the 5-unit integrated teaching mode "CNC Machining Technology" course unit-based integrated teaching is based on the production training workshop and on-site classroom of the National CNC Skill Training Base of our institute, classroom explanation, machine tool operation, on-site Q & A and writing The report is synchronized and cross-cutting, and the sub-module achieves the teaching objectives. We believe that this arrangement has the following characteristics: (1) the integration of theoretical teaching and practical teaching content, abandoning systematic knowledge explanation, optimizing the teaching process, and improving teaching. Efficiency, on the basis of ensuring the teaching objectives and teaching effects, the total number of hours of course teaching has been reduced from 194 to 149, a reduction of 23%. (2) The teaching organization realizes the unit teaching mode, which greatly improves the training ratio of the course and highlights the teaching purpose of the skill training. The proportion of theoretical and practical teaching is greatly improved from the original 1:0.98 to 1:2.38. The practical ability of students has been greatly enhanced. (3) Based on the teaching environment of the on-site classroom, the students have a strong sense of engineering practice, and use the state-level demonstration numerical control vocational education training base to complete the numerical control equipment and the good materials of its external processing services. The content of the teaching is closely related to the actual production, mobilizing the students' enthusiasm for learning, giving play to the main role of the students, reflecting the teaching characteristics of students in accordance with their aptitude and people-oriented teaching. (4) The evaluation system of the curriculum is more pragmatic. The curriculum that focuses on skills development has to rely on a paper to assess the academic performance. It is decided that the student's grades are no longer mainly the exams at the end of the semester. Comprehensive evaluation of teaching, practical operation, practice report, processing results, equipment maintenance, safe and civilized production, etc., highlighting the investigation of students' practical application skills. (5) The emotional interaction between teachers and students has been increased during the teaching process, which has greatly improved the teacher-student relationship. Due to the change of teaching organization, the opportunities for teachers and students to communicate individually have increased, and teachers pay attention to emotional communication with students in the teaching process. The encouragement of students has created an equal, democratic and positive teaching atmosphere, which has formed a benign interaction between teaching and learning, and strengthened the effect of teaching and learning. 6 Several problems should be solved in the implementation of the curriculum. In order to fully implement the idea of ​​curriculum design, the teaching mode and arrangement of this course should focus on solving the following problems in the specific implementation process: (1) Pay attention to training and To create a team of excellent double-teachers, the unit-integrated teaching model has high requirements for the teachers. In addition to the lectures and practical demonstrations, it must also have relevant knowledge of machining technology and better. Communication skills and control and management capabilities at the processing site. Teachers must unify their thinking and ensure that teaching arrangements are implemented and implemented. (2) The teaching should flexibly apply a variety of teaching methods and draw on modern educational technology. For some lectures that affect the teaching effect due to the limitations of the venue, multimedia teaching materials should be designed and produced, and classroom knowledge should be presented in multiple directions and multiple perspectives. And make full use of network means to produce and publish online teaching resources, and encourage students to learn and improve independently. (3) Do a good job in the construction of teaching materials that are compatible with the curriculum. At present, the textbooks of this course are basically written separately from the theoretical teaching and the practical teaching content. In order to meet the needs of teaching, it is necessary to organically combine these two aspects. Convergence and writing appropriate textbooks in a modular format. (Finish) Here you can find the related products in Cluth Disc Plate, we are professional manufacturer of Car Clutch Disc Plate, Auto Parts Clutch Disc Plate, Clutch Disc Plate Assembly ect.
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