The core problem to be solved in curriculum reform is â€œteaching whatâ€ and â€œhow to teachâ€ for teachers. It is a question of â€œwhat to learnâ€, â€œhow to learnâ€, â€œwhat to doâ€ and â€œhow to doâ€ for students. When determining the content of the course, we must do the unity of teaching, learning, and doing, so that students can do it in school and do middle school. The content of the course should reflect the advanced nature of the numerical control profession, and also take into account the cognitive ability of the students, so that the "practical", "applicable" and "enough" of knowledge should be beneficial to the transfer of students' knowledge and the formation of skills. The development of teaching.
The formation of students' skills is a shallow and deep, step-by-step process. Therefore, in the course design, we must pay attention to the ladder between the modules, and at the same time, we must do â€œwarming and knowing newâ€. The subject of training should be representative and targeted, and it is conducive to the development of behavior-oriented teaching methods. The curriculum model should be conducive to the assessment of students' comprehensive ability and give students an accurate evaluation. Students should be encouraged to learn independently, help each other, deepen their emotions in the process of learning, and train students into flesh-and-blood workers.
First, the curriculum of the NC machining curriculum reform is based on the national vocational ability standards of CNC machine operators, with the goal of social competence requirements for the profession, determining the professional competence that should be embodied in the curriculum system, and summarizing the capabilities that the CNC major should possess. For: basic quality and ability, basic mechanical skills, basic electrical engineering capabilities, machining and CNC machining capabilities. After determining the above four basic abilities, the course is set according to the requirements of the curriculum integration.
There are 7 courses in language, applied mathematics, professional English, sports, computer operation technology, moral education, occupation and employment for basic qualities and abilities. The language focuses on the writing of modern and applied texts, laying the foundation for students' basic expression and writing skills after graduation.
Applied mathematics and professional English combine professional features and mainly introduce mathematics and English knowledge used in teaching content such as machining and CADCAM. Moral education, career and employment focus on enabling students to establish correct life goals and professional ideas, and lay the foundation for future employment. Computer operation technology mainly cultivates the application ability of students' computers, and is familiar with the operation process of common software, laying the foundation for the future learning of CADCAM.
For the basic skills of the mechanical profession, major courses in mechanical drawing and CAD technology, materials and molding technology, and mechanical basic knowledge are offered. Mechanical drawing and CAD technology mainly enable students to master the basic skills of mechanical drawing, mapping, and mapping, and can skillfully use a CAD software. In order to enable students to have a solid ability to map, the teaching of the map should be carried out throughout the professional teaching, especially in the practice of teaching, combined with the specific machine tool to read the assembly drawing. Materials and molding techniques focus on enabling students to master the performance and applications of common metal materials, mastering the processing methods of typical parts and the principles and structures of the corresponding equipment. The study of this knowledge should not be limited to teaching in the classroom, but a large number of class hours should be arranged in the laboratory and the internship to enable students to learn in an immersive way. The basic knowledge of machinery integrates knowledge of tolerance coordination, engineering mechanics, mechanical transmission and parts, hydraulic transmission, etc., and there are many contents. Therefore, it is necessary to make proper choices, arrange them reasonably, and try to use a variety of different teaching methods to adapt to different Requirements for teaching content.
Establish electrical and electronic technology foundations, machine tool electrical equipment for basic electrical operation. The foundation of electronic and electrical engineering enables students to understand the basic principles of electricians and electronics and the use of commonly used electrical testing equipment. The course uses experimental teaching mode. Machine tool electrical equipment enables students to understand the principle, application, maintenance and maintenance of common electrical equipment used in machine tools, laying the foundation for the safe use of ordinary machine tools and CNC machine tools.
For the machining and CNC machining capabilities, we have established three basic courses: basic skills training for the fitter, technology and skill training for the car (milling), CNC machining practice and CAM software. The basic training of the fitter mainly enables the students to master the basic operating skills of the fitter and lay the foundation for the maintenance and maintenance of the numerical control equipment. The car (milling) process and skill training mainly enable students to master the process knowledge, equipment operation, safety production and measurement technology of ordinary car (milling) bed processing. CNC machining practice and CAM software enable students to master the basic structure, operating procedures, process, code generation and use of CAM software for CNC machine tools, so that students can truly master the skills of CNC machining.
Second, the characteristics of the curriculum The opening of these courses is not only independent but also mutually infiltrated. It is a comprehensive and integrated curriculum. They have both vertical integration and horizontal integration.
Vertical integration is the organic combination of different levels and different types of knowledge according to the ability of the profession, so that the professional knowledge develops in depth. For example, combining the geometric calculation module in applied mathematics with the specific parts in machining, so that students can master the mathematical calculation method in CAD "CAM process. The teaching of professional English is combined with the use of CAD "CAM software, the same as CNC machine tools. The combination of operations enables students to skillfully perform software operations and machine tool processing.
Horizontal integration is based on the student's ability structure, organically combines knowledge on the same level, and establishes the horizontal connection of knowledge. For example, measurement technology is not listed as a single course, but it runs through the basic processes of mechanical basics, mechanical drawing, CNC machining, machining, etc. It is completely infiltrated into various subjects, so we must cause in the teaching process. Adequate attention, so that students can fully grasp the use and maintenance of the relevant measuring tools, and master the measurement methods of typical parts.
In the design of the module and the learning unit, according to the modular curriculum idea, each module should be relatively independent and standardized. For modules that are closely related to professional knowledge, it is necessary to integrate teaching to develop students' comprehensive skills.
For example, in the course of mechanical drawing and CAD technology, the module is set as the introduction of mechanical drawing, basic body diagram, axis side diagram, combined body diagram, pattern, common parts and parts, reading part drawing, reading assembly drawing 8 modules, each module has corresponding learning units, each learning unit consists of the corresponding learning objectives, basic knowledge, drawing skills, professional English, CAD drawing, skill standards and other parts. This combines mechanical drawing with CAD skills to improve the student's comprehensive drawing skills.
At the same time, in order to strengthen the students' ability to map, in the practical process of machining and CNC machining, combined with specific parts and processing equipment to read parts drawings and assembly drawings, to improve students' ability to map in actual work.
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