| The application and development of forging automation technology provide space for technological transformation,upgrading and progress in the forging industry.It reduces the waste of auxiliary time and increases the productivity of presses while ensuring product quality,improving the working environment and reducing the labor intensity of workers.Based on the in-depth analysis of the structure and operation principle of the EP-8000 electric screw press,this paper combines with its actual forging production process the design and research of automation equipment are carried out.It is used to solve a series of problems,such as high production cost and low work efficiency caused by manual inkjet,loading and unloading and mold replacement in forging production.(1)In the process of forging EP-8000 electric screw press production,artificial inkjet causes poor spraying effect and uneven inkjet,affecting the forming quality of forgings.Based on this and combined with the actual needs of forging production,this paper studies the multi-station automatic inkjet device and realizes the automation of inkjet lubrication in the process of forging production.The overall structure,control system and process flow of the multi-station automatic inkjet device are designed,and the inkjet verification experiment is carried out on the device.The results show that compared with the manual inkjet method,the device has controllable inkjet time,position and amount,good inkjet effect and high efficiency.At the same time,in order to improve the human-computer interaction ability of the device,using MCGS industrial control configuration software and STEP7-Micro/WIN programming software,combined with the use of a multi-station automatic inkjet device,a multi-station automatic host computer monitoring system of inkjet device is developed.The system database,display animation,device connection and script program are designed and tested,which proves that it can realize real-time monitoring and functional adjustment of the running state of a multi-station automatic inkjet device.(2)According to the fact that manual loading and unloading can not meet the actual needs of EP-8000 electric screw press forging the production rhythm of the automobile steering knuckle,this paper combines the characteristics of the press to design a truss loading and unloading manipulator to realize the automation of the loading and unloading process in the steering knuckle production process.The paper compares the advantages and disadvantages of different drive solutions,transmission solutions and clamping devices,selects the optimal solution for the overall structural design of the manipulator,and carries out selection calculations for crucial components.The modal analysis of the manipulator is carried out using ANSYS software,proving that the excitation frequency of the driving motor of the manipulator is lower than the minimum natural frequency of the manipulator,and no resonance phenomenon occurs.Furthermore,Adams software is used to analyze the dynamics of the manipulator,the speed and acceleration curves are obtained,and it is determined that the manipulator can work normally and smoothly,which verifies the rationality of the manipulator design.(3)Given the low efficiency of manual replacement of EP-8000 electric screw press mold,this paper designs a rapid mold change device by hydraulic locking mold,which realizes rapid mold replacement in the forging production process.The overall structure of the quick mold change device is designed,the key components are selected and calculated,and the design of the hydraulic system and control system of the device is completed.ANSYS software is used to analyze the working condition of the mold shifter in the rapid die change device and the influence of the upper and lower clamping devices on the mold.The analysis results show that the maximum stress of the mold shifter is 19.834 MPa,which is less than the allowable stress of the 45# steel material of the mold shifter and meets the requirements of the mold shifting work.Furthermore,under the working condition of the press,the maximum stress of the upper mold of the press is 286.53 MPa.The maximum stress of the lower mold of the press is 211.49 MPa,both of which are less than the allowable stress of the die material HI3 steel,which can meet the requirements of the regular use of the press and have no effect on the forming of forgings,which proves the reasonableness of the design of the quick mold change device.The multi-station automatic inkjet device,truss loading and unloading manipulator and rapid mold change device developed in this paper can replace the traditional manual forging production method and realize the automation of press forging production.It is significant to improve the forging production efficiency of the press and reduce the production cost. |
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