Design Of Structure And Control System Of Doors And Windows Forming Modular Machine Tool

With the improvement of the income level and consumption level of Chinese residents,the strong demand for wooden doors and windows has driven the demand for door and window processing equipment.But window-type processing equipment of the domestic wooden doors and windows is mostly in a semi-automatic state,and there are defects such as low processing efficiency,low precision,and high labor intensity of workers,it is more dependent on foreign imported equipment,but small and medium-sized enterprises cannot afford expensive equipment investment.Therefore,this paper aims to design a modular machine tool that combines planing and milling,which not only improves the processing quality and processing efficiency of wooden doors and windows,but also reduces the input cost and reduces the labor intensity of workers.In this paper,the corresponding technical parameters and processing technology of existing wooden doors and windows processing equipment at home and abroad are analyzed and researched.Combined with the domestic market demand for the doors and windows processing equipment,the processing technology of wooden doors and windows and the processing technology of the combined machine tool are analyzed to determine the main technical parameters and overall layout of the doors and windows component forming modular machine tool.And the overall structure of the doors and windows component forming modular machine tool is completed according to the overall layout.Through the calculation of cutting force and cutting power for sawing and planing,the main power output of the forming combined machine tool is determined,and the end-tenon milling machine,the longitudinal-tenon milling machine,the automatic loading manipulator and the feeding roller table of the forming modular machine tool are completed.The detailed structural design of the edge saw assembly,the rough milling spindle assembly and the tenon-milling and feeding assembly of the end-tenon milling machine is designed and analyzed.Based on the cutting force calculated by the above analysis and load,the static analysis,modal analysis and structural optimization analysis of the milling main frame of the end-tenon milling machine are carried out.and the static analysis with bearing prestress and harmonic response analysis of the milling spindle of the end-tenon milling machine are carried out.By the corresponding cloud map obtained,the rationality of structural design can be verified,which provides ideas and references for the design analysis of other parts of the machine tool.By analyzing the processing sequence of the forming combined machine tool,the control system of the modular machine tool is designed,and the functional requirements analysis of the machine tool control system,the electrical schematic drawing and the component selection are finished.the PLC control programming and the design of HMI are carried out according to the electrical schematic,and the mathematical model of the control system mathematical model of the combined machine tool milling cutter adjustment mechanism is established.The time-domain analysis method and the frequency-domain analysis method are used to analyze the control system for verifying the stability of the control system.In this paper,the project design,process analysis,structural design,force analysis of the key components and control system design of the doors and windows forming modular machine tool are carried out.It can finish sawing,end-tenon milling and longitudinal-tenon milling of the door and window on both sides,which provides new design ideas for domestic wooden doors and windows processing equipment manufacturers.