CNC precision parts processing is still widely involved in the industry. Why do we say so? In fact, we can see it in our life. It has obvious effect and more applications in some mechanical equipment. We need to know that CNC precision parts processing has high requirements. Why? Because customers are demanding quality and this kind of CNC precision parts plus The advantages of CNC are great, so it is necessary to do better and let customers trust. This is what CNC precision parts processing needs to do.

Dongguan precision machining

1. The feed path of milling plane parts with CNC lathe

When milling plane parts, the side edge of end mill is usually selected for cutting. In order to reduce the trace of cutting tool and ensure the appearance quality of parts, the cutting in and cutting out program of cutting tool should be designed carefully.

When summarizing the milling outer surface, the cutting in and cutting out points of the milling cutter shall cut in and out the outer surface of the part along the extension line of the part generalization curve, instead of directly cutting in the normal direction, so as to avoid scratches on the machined surface and ensure the general lubrication of the part.

When milling the closed inner generalization surface, if the inner generalization curve allows extension, it should be cut in and out along the tangent direction. If the inner generalization curve does not allow extension, the cutter can only cut in and out along the normal direction of the inner generalization curve, and select its cut in and out points at the intersection of the two elements of the part generalization. When there is no intersection between several internal elements, the cutting point should be far away from the corner in order to avoid the notches left at the general corner when the compensation is cancelled.

Dongguan precision machining

This is the cutting path of the circular interpolation method when milling the outer circle. When finishing machining, do not withdraw the tool at the tangent point for 2 times, but let the tool move a certain distance along the tangent direction to avoid collision between the CNC lathe tool and the workpiece surface when canceling the tool compensation, which constitutes the workpiece invalid. When milling the inner arc, it is also necessary to follow the principle of cutting from the tangential direction, and the best organization is the processing path of transition from the arc to the arc, so as to improve the processing accuracy and quality of the outer surface of the inner hole.