Analyzing the programming points of CNC precision machining for dies
In general, CNC machining generally refers to precision machining controlled by computer digitization, CNC machining lathe, CNC machining milling machine, CNC machining boring milling machine, etc.
(1) For cnc precision machining dies, we should review the work before programming, that is, we should make a comprehensive analysis of the die structure and work out the processing and production plan; In case of design change due to mold maintenance, timely review the mold and modify the production schedule.
(2) Before programming, the factors of parts shall be considered comprehensively. Several processing methods and paths shall be selected first, and then the program shall be compiled. Then, the program shall be modified according to the CNC precision processing method to ensure that there will be no tool collision, missing processing procedures, etc. during the tool path; In the process of finishing, such as the core and cavity of the mechanical mold, the specific processing number of the rough machining must be comprehensively considered. The parts that can be milled out in the rough machining process must be milled out, and the parts that cannot be milled out by the gantry milling machine must be widened as much as possible to the required value.
During finishing, the feed amount and direction of the tool must be strictly controlled. The best result is to use the shortest time to process the highest quality mechanical mold.
Finally, NC simulation software shall be used to simulate and verify the feasibility of the tool path before the programming is completed and the machine collision accident caused by human factors in programming shall be prevented. For high-speed machining tools, if conditions permit, NCBRAIN software can be used for optimization, which can greatly reduce the machining efficiency and improve the tool life.
(3) During and after the processing, the inspection and sorting shall be done well. Lifei Company shall check the processing progress and quality at all times during the processing. Once it finds that there are too many empty tools, large work-piece allowance, wrong tools, tool spring, tool deformation, etc., it must be reported in time to ensure that the programming modification can be carried out in a timely and effective manner and reduce the waste of materials; After processing, strictly check and measure the parameters, missed work and errors of the workpiece, and then report to the superior to ensure that the CNC precision machining accuracy is within a reasonable range. Finally, these data should be recorded and a workpiece processing database should be established to facilitate future inspection, comparison and experience summary.
