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Four-axis Machining Center programming method is: Generally the workpiece has six degrees of freedom when it is not positioned in space, X\Y\Z three linear displacement degrees of freedom and its corresponding ah A\B\C three rotational displacement degrees of freedom. The six degrees of freedom are usually expressed in terms of the Cartesian Cartesian coordinate system of X\Y\Z for the three linear axes and its corresponding A\B\C for the three rotational axes. For example, multi-axis CNC machines, that is, machining centers, need to set the number of axes according to the planning of the processing object when designing.
In terms of programming, there is a big difference between the programming of a Four-axis Machining Center and a CNC Five Axis Machining center. When machining a workpiece on a four-axis machining center, the tool axis is always toward the axis of rotation of the workpiece. It is because of this feature that four-axis machining center programming is more similar to three-axis machining center. Common programming instructions are as follows.
1.F function
The F function instruction is used to control the cutting feed. In the program, there are two ways to use it.
(1) Feeds per revolution
Programming format: G95F~
The number after F indicates the feed per revolution of spindle, unit is mm/r.
Example: G95F0.2 means the feed amount is 0.2mm/r.
(2) Feed per minute programming format: G94F~F
The number after F indicates the feed per minute in mm/min.
Example: G94F100 means the feed amount is 100mm/min.
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