CNC machining light knife

Light knife is to meet the assembly requirements of various products and molds, so it is very prudent to provide different tool path settings and parameter settings according to different requirements.


1. The height of the knife and the final height of the light knife are changed to 0, and the tolerance design is less than 1 silk. There is no need to filter (the smaller the workpiece, the smaller the tolerance, the tolerance will affect the appearance).


2, the front mold and parting surface should achieve the best finish, and the back mold can be repeated.


3. The design of the tool path is determined by the following factors:
The specific shape (such as plane and other surfaces), steep surface and flat surface.
Whether there is a right angle between the two sides (the angle is separated).
Whether the two part requires different (whether to leave allowance, allowance, and the requirement of finish).
The problem of the protection surface in the light knife is a big problem. The error in the processed surface must be protected and protected according to the requirements of the surface. Scope protection, excluding error 0 protection, height range and plane coverage; protection surface protection.
When the knife path is extended, it is better to use arc cutter to process the edge of the blade in the light knife, otherwise the surface will be lengthened in advance.
The problem of cutting the knife in the light knife. Lift a knife to waste time, so try to avoid lifting a knife.
Method 1: set knife gap (small gap)
Method 2: cover, seal the lifting place (small gap).
Method 3: avoid the gap (large gap)
Method 4: extend to the same height when the contour is high
In the light knife, the first feed must be moved from outside the workpiece, avoiding vibration and bruising, and all light knives must be knives.
The problem of tool wear: when the workpiece is large, it needs more than one knife to finish the same workpiece.