如何处理数控车床编程加工工艺 (1)（How to deal with NC lathe programming process (1)）.docVIP

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如何处理数控车床编程加工工艺 (1)（How to deal with NC lathe programming process (1)）.doc

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如何处理数控车床编程加工工艺 (1)（How to deal with NC lathe programming process (1)） How to deal with NC lathe programming process 1, determine the workpiece processing parts and specific content Determine the process of the workpiece to be completed on the machine tool content and its connection with the front and rear processes. The condition of the workpiece before the process is processed. For example, castings, forgings or bars, shapes, sizes, machining allowances, etc.. The shape, size, or dimension of the machined part of the preceding process, the base plane, the reference hole, etc., that need to be processed by the preceding process. The parts and contents of this process. In order to facilitate the preparation of processes and procedures, should be drawn before the processing of rough drawings and processing drawings of the process. 2, determine the workpiece clamping method and design fixture Choose or design fixture according to the workpiece location, positioning criteria and clamping requirements. Numerical control lathe uses three claw self centering chuck to clamp workpiece; shaft workpiece can also support workpiece with tailstock center. Because of high speed CNC lathe spindle, for workpiece clamping, the use of high speed hydraulic power chuck, because it has passed the strict balance in the production plant, with a high speed (the speed limit is 4000~6000r/min), high clamping force (maximum force 2000~8000N), high precision, convenient and adjustable claw holes, service life long etc.. The soft claws can be used to clamp the workpiece, and the soft claw cambered surface is randomly prepared by the operator, and the ideal clamping precision can be obtained. By adjusting the pressure of the cylinder, the clamping force of the chuck can be changed so as to meet the special needs of holding various thin wall and easily deformed workpieces. In order to reduce the deformation of the slender shaft during the processing, improve the machining accuracy, and when machin