加工中心中级工职业技能培训-英文版

The Content and Class Arrangement of Vocational skills trainingFor the Medium Skilled of Machining CenterVocational functionJob content Skill requirements Related knowledge Class period I. Processing preparationI. Interpret the images and graphics1. Can read medium-complexity parts chart.( e.g. cam, box, polyhedron)2. can draw a groove, step, inclined plane simple parts chart3. can read simple assembly drawing, such as dividing head tail stock, collet sleeve, indexable milling cutter structure, 1. Expression of complex parts2. Drawing of Simple parts chart3. The drawing of Three-view drawing of partspartial view profile chart5II. Formulation of processing technology1. can read the files of complex parts of Numerical Control (NC) machining technology 2. can compile the files ofNC machining technology such as linerarc surfacehole series 1. formulation method of the files of Numerical Control (NC) machining technology 2. the knowledge of Numerical Control (NC) machining technology 20III. Parts positioning and clamping1. can use the common fixtures such as platenjaw viceplain vice in the machining center 2. can select the positioning reference and find the positive parts1. the use of common fixture in machining center 2. the principles and methods of positioning and clamping 3. methods of parts alignment5V. Cutting tool preparation1. Can choose, install, and adjust the common fixtures of machining center according to NC processing craft. 2. Can choose the geometry parameters of cutting tools and cutting tools, and determine the cutting parameters and cutting parameters needed for NC machining according to the machining center feature, parts material, machining accuracy and working efficiency3. Can Use the toolpresetter and measure the radius and length of measuring tools in machine 4. Can chooseinstalluse the handle 5. Can grind the common fixtures1. metal cutting and tool wear2.the knowledge the type,structure and feature of the common fixtures of machining center 3. the requirements of tools on machining center,parts material, machining accuracy and working efficiency 4. the use of toolpresetter5.knowledge of length compensation, radius compensation and cutting tool parameters 6. the classification and use of handles 7. methods of cutting tool grinding10II. Numerical control programmingI. Manual programming1. Can program the processing program such as Drilling, expansion, hinge, boring, etc.Programming plane milling program2.Can program the processing program Including linear interpolation, circular interpolation and two-dimensional contour1. knowledge of numerical control programming2. the principle of linear interpolation and circular interpolation3. calculation method of coordinate points4. the function and calculation method of cutter compensation 30II. Computer aided programming(CAP)Can use CAD/CAM software to complete the simple plane outline of the milling program1. the method of CAD/CAM software 2. the drawing of planar contour and generating method of process code 20III. Machining Centre operationI. operation panel1.can start and stop the machine tools according to the operation procedure2. Can use the common functions (such as return to zero, manual, MDI, and so on) can be used by the operation panel.) 1. operation manual of machining center 2. the use of operation panel of machining center 20II. Program input and edit1. Can input processing program through various means (such as DNC, network). 2.can input and edit the machining program through operation panel 1. the input method of NC machining program 2. the edit method of NC machining program 5III. tool setting 1. can use tool setting and determine the relative coordinates 2.can set tool parameters1. the method of tool setting 2. the knowledge of coordinate system3. the input method of tool bias compensation, radius compensation and tool parameters 15V. program debugging and operation 1. Can verify the program, single step, running and complete the part test2. Can use exchange desk1. the method of program debug2. the exchange method of desk 10IV. management of cutting tools 1. can use the automatic tool changer 2. can set up and select tools in the tool pool3. can input parameters through the operation panel1. the knowledge of the tool pool 2. the use of the tool pool3. the setting of tool information and the selection of tools5V. Parts processingI. plane processing can use the NC machining program to carry out the milling process such as plane, vertical plane, inclined plane, stair face, etc. and meet the following requirements:1). Dimensions tolerance levels of IT7 grade2). The tolerance level of form is IT8 grade3). The surface roughness reaches Ra3.2 M 1. Basic knowledge of planar milling2. Cutting features of cutting tools50II. Cavity processingcan use the NC machining program to carry out the milling process such as planar contour composed of straight line and arc and meet the following requirements:1). Dimensions tolerance levels of IT8 grade2). The tolerance level of form is IT8 grade3). The surface roughness reaches Ra3.2 M1. Basic knowledge of planar milling2. Cutting features of cutting tools50III. Curved surface machiningCan use the NC machining program milling conical surface, cylindrical surface and other simple surface, and meet the requirements:1). Dimensions tolerance levels of IT8 grade2). The tolerance level of form is IT8 grade3). The surface roughness reaches Ra3.2 M1.the basic knowledge of surface milling 2. Cutting features of ball head cutting tools30V. Machining of hole canuse NC machining program for machining of hole and meet the following requirements:1). Dimensions tolerance levels of IT7 grade2). The tolerance level of form is IT8 grade3). The surface roughness reaches Ra3.2 MThe processing method of drilling, reaming drill, tap Hemp flowers, boring cutter and reamer50IV. slot processing canuse NC machining program for machining of groove and keyway and meet the following requirements:1). Dimensions tolerance levels of IT8 grade2). The tolerance level of form is IT8 grade3). The surface roughness reaches Ra3.2 MThe processing method of groove and keyway20VI. accuracy test Can use common measuring tools for accuracy test of parts1. Common use of measuring tools2. accuracy test and measuring method of parts 5IV. maintenance and accuracy inspection of machining center I. Daily maintenance of machining