Technical Outline of the Second National NC Skills Competition

The technical outline of the second national numerical control skill competition, CNC lathe, CNC milling, machining center operator

The 2nd National NC Skills Competition Expert Group April 2006

table of Contents

I. Overview of the competition II. Description of the competition III. Technical requirements

I. Overview of the competition group: employee group, teacher group, student group (students are higher vocational colleges (including higher vocational colleges, higher vocational colleges), secondary vocational schools (including secondary technical schools, technical schools, vocational high schools) and senior technical school technicians colleges three Groups);
Type of work: CNC lathe, CNC milling, machining center operators;
Basis: National Professional Standards for "CNC Turning", "CNC Milling" and "Machining Center Operators";
Time: mid-October 2006;
Location: Beijing.

Second, the competition description The total score of the second national numerical control skill competition consists of two parts: theoretical knowledge and practical operation skills (including software application), in which theoretical knowledge accounts for 20%, practical skills account for 80% (software applications account for 10%) Actual operation accounts for 70%).
Each contestant must participate in the competition of theoretical knowledge and practical skills (including software applications), and complete the competition content as required within the specified time. The scores of the contestants are assessed by the referee team of the technical team of the competition.
Theoretical knowledge contest content: theoretical knowledge and related knowledge of the national occupational standards of the corresponding types of work.
Software application competition content: part modeling, CNC programming. Student group and teacher group added computer simulation processing.
The actual operation skill competition content: complete the test piece processing according to the drawings.
Referee equipment: theoretical knowledge contest and software application competition each venue is equipped with 3 judges. There are 2 judges in each position of the actual operation skill competition. There are 1 referee, 2 competition supervisors and 3 engineers and technicians in each class.
Competition time: The theoretical knowledge competition time is 120 minutes; the software application competition time: 180 minutes for the student group and the teacher group, 120 minutes for the employee group; actual operation skill competition time: 360 minutes for the student group, 420 minutes for the teacher group and the employee group .
Third, technical requirements
(1) Professional ethics
1. Dedicated to work, loyal to duty;
2. Work hard to study business, study hard, be diligent in thinking, and be good at observation;
3. Work conscientiously, be strict with self-discipline, and work hard;
4. Obey the operating procedures and adhere to safe production;
5. Dress neatly, care for equipment, keep the working environment clean and orderly, and achieve civilized production.
(2) Relevant knowledge and skills
1. CNC machine tools and working principles (composition structure, interpolation principle, control principle, servo system);
2. CNC machining technology (processing specification, workpiece clamping and fixture application, tool and cutting parameter selection and application);
3, programming technology (program format, common instructions, subroutines, fixed loops, variable programming);
4, CAD / CAM software usage methods (geometry modeling of parts, tool path generation, post processing and code generation);
5, CNC machining simulation software application (teaching group and student group only)
6. Operational skills (machine operation and maintenance, specimen processing and measurement).
(3) The content of the competition requires that the content requirements of the student group competition should include the latest national professional standards "CNC Turning" or "CNC Milling" or "Machining Center Operator" senior workers and all the following low-level requirements.
The requirements of the teacher group competition content should include all the following low-level requirements of the latest national professional standards "CNC Turning" or "CNC Milling" or "Processing Center Operator" technicians and technicians.
The content requirements of the employee group competition should include all the following low-level requirements of the latest national professional standards "CNC Turning" or "CNC Milling" or "Processing Center Operator" technicians and technicians.
Note: You can refer to the "Analysis and Comments on the Final Test of the First National CNC Skills Competition"

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