Mechanical processing plant needs to pay attention to when processing parts
When the mechanical processing plant processes mechanical parts, when the workpiece is too high, it should use different lengths of knife to open thick. After using the machete to open thick, the remaining material should be removed with a knife. In order to reduce machining time; if inclined.
At the same time, set tolerance, make the balance between machining accuracy and computer calculation time, do more process, reduce the empty knife time; blank material high hardness, choose reverse milling; blank material low hardness, choose forward milling. Rough machining reverse milling, fine machining forward milling; tool material good toughness, low hardness to rough machining, tool material poor toughness, high hardness to precision.
Mechanical processing plant CNC machine tool processing by machining parts clamping method should be reasonable selection positioning benchmark and clamp scheme, in the benchmark selection, generally to follow the "benchmark" and "benchmark overlap" these two principles, in addition to the two principles, but also consider as far as possible in a positioning clamping to complete all the surface of the processing, therefore, to choose to each surface can be processed positioning way.
When the workpiece is clamped once, it shall complete the machining of all surfaces of the workpiece; determine the position of the workpiece on the workbench shall consider the influence of the length of the tool and the stiffness of the tool on the machining quality. The fixture used in the control processing should be assembled with general components and adjustable as far as possible to shorten the production preparation cycle.
When arranging the processing sequence, the basic principles must be observed, including "first face after hole", "first coarse after fine" and so on. According to the centralized process of tool processing, avoid the same tool repeated reuse, reduce the number and time of knife change.
For the pore system with high coaxial degree requirements, after one positioning, the processing of the pore system should be completed, and then process the pore system of other coordinate positions, so as to eliminate the error caused by repeated positioning and improve the coaxial degree of the pore system. Choose to determine the knife point and change point, once determined, should not be replaced.
