(5) Taper processing conditions
1) You must first enter the following parameters:
1 The distance S from the center of the upper guide wheel to the work surface.
2 The distance W from the work surface to the center of the lower guide wheel.
3 workpiece thickness H. As shown in Figure 3.
Figure 3 Taper processing condition parameters
2) Establishment and exit of taper processing
Figure 4 Example of taper cutting processing range and machining error analysis
1 The process of establishing and withdrawing taper is shown in Figure 4: Establish taper machining (G51 or G52), exit taper machining (G50)
2 The block must be the G01 linear interpolation block, which is completed in the infeed line and the retract line.
3 is shown in Figure 5a. The program surface in the figure is the lower surface of the workpiece to be processed and coincides with the work surface.
4 Taper machining is established from the starting point of the taper machining linear interpolation block to the yaw wire, and the wire is deflected to the specified taper value at the end of the block, as shown in Figure a.
The exit of the 5 taper machining is to yaw the electrode wire from the starting point of the linear interpolation interpolation step of the taper machining. When the end point of the block is reached, the wire swings back to the 0° value (vertical state), as shown in FIG.
Figure 5 Establishment and exit of taper processing
3) Analysis of taper cutting processing range and machining error
1 Taper cutting processing range: ±6°/50mm (different machine taper cutting processing range is generally different).
This value is only suitable for graphics with smooth contours.
For a pattern with a non-smooth connection, the edge angle is the compound angle of the two sides, and the value is larger than the cone angle on the surface. Therefore, when the cone angle is 6o, the cone angle on the edge will be greater than 6°. Cutting.
For example, when cutting a square pyramid with a taper of 6°, the taper angle on the rib is 8.792°, which has exceeded the cutting range of ±6° and therefore cannot be cut. As shown in Figure 6.
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