CNC machining refers to a process for parts on CNC machine tools for machining, CNC machining process planning with traditional machining said in general is the same, but significant changes have taken place. Digital information control parts and machining tool displacement method. It is to solve the parts changing varieties, small batch, complex shape, high precision problems and achieve efficient and effective way to automated processing. CNC programming CNC machining is one of the main stages of preparation, often including parts pattern analysis to determine the machining process; calculate the trajectory passes, drawn cutter location data; write NC programs; production control medium; proofreading process and the first pieces of test cut. There are manual programming and automatic programming of two ways.
Platen mechanism is the helical screw pair combination with other elements, the clamping mechanism of a workpiece. Screw clamping mechanism is very common to use in production. Spiral plate mechanism is simple structure, large clamping stroke, and good self-locking performance, increase strength ratio, is used in most manual clamping a clamping mechanism.
In this paper, the plastic case of the die machining CNC programming example, introduced CNC programming is drawing to get parts from CNC machining program the entire process.
In this paper, spiral plate design agency, for example, of the clamping mechanism were introduced. Fixture features a simple, targeted, clamping force, reliable, compact, high production efficiency, safety, and there is a reasonable handling space.
The design also uses mapping software UG, AutoCAD various parts of the spiral plate bodies were assembled and three-dimensional mapping and drawn parts and assembly drawings. In addition, also with a plastic shell die UG conducted on NC programming.