Citing of 3 numerical control lathe is commonly used kinds of courses that retreat a knife explains

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  • source:EAMOM CNC Machining
In process of treatment of numerical control machine tool, machine efficiency to rise, cutting tool arrives from initial drop or motion of the dot that change a knife be close to work place and treatment to back down answer initial drop or changing a knife to nod is with G00 (sudden drop locates) kind moves. The principle that considers the course that retreat a knife is: The first, ensure security, do not produce collision with workpiece in the process that retreat a knife namely; The 2nd, the consideration withdraws cutter track line the shortest, shorten idle stroke, improve manufacturing efficiency. What machine spare parts place according to cutting tool is different, the course that retreat a knife also differs surely really. Numerical control lathe often withdraws cutter track line below in order to 3 kinds: (1) inclined to the course that retreat a knife inclined to the course that retreat a knife (if the graph is shown 1 times) the distance is the shortest, agree with of surface of the circle outside treatment slant the knife retreats a knife. Graph 1 inclined to the course that retreat a knife (2) diameter, axial retreats means of cutter track line, axial to withdraw cutter track line is to point to cutting tool first edge radial is perpendicular retreat a knife, arrive when appointing the position again axial retreats a knife. The grooving treatment that the graph shows 2 times introduces this kind of line that retreat a knife namely. Graph 2 diameter, axial withdraws cutter track line (3) the order that axis, radial cancels cutter track bobbin, radial to withdraw cutter track line and diameter, axial withdraws cutter track line just contrary. The graph shows 3 times bore hole treatment introduces this kind of line that retreat a knife namely. The graph is 3 axes, radial the course that retreat a knife 3, the point changing a knife that sets the dot that change a knife to install cutting tool of numerical control lathe is the issue that must consider in process of work out machine program. Changing a knife to choose the safest place is to change any cutting tool on the tool carrier when the knife or bit body not to produce the position of collision with component of workpiece or machine tool other. Popularly, in sheet in small lot production, we are used to a setting of the place that change a knife to secure a place for, the seat that its position does not fasten along with workpiece coordinate is changed and produce change. The axial position of the dot that change a knife extends the longest cutting tool by the axial on tool carrier (be like inside aperture boring cutter, broach) decision, the radial position of the dot that change a knife extends the longest cutting tool by the radial on tool carrier (knife of lathe tool of the circle outside be like, grooving) decision. In big batch production, manufacture efficiency to rise, reduce time of machine tool idle stroke, reduce face of machine tool slideway to wear away, need not set the fixed point that change a knife occasionally. Every knife has each place that change a knife each. At this moment, work out and the program that debug the part that change a knife should follow two principles: The first, ensure the cutting tool when changing a knife does not collide with workpiece happening; The 2nd, the course changing a knife with the shortest do one's best, namely so called " follow type changes a knife " . CNC Milling CNC Machining