Structure Analysis And Optimum Design Of YX1513 Laser Cutting Machine

With the rapid development of the equipment manufacturing industry,China’s CNC laser cutting equipment has entered a period of rapid growth.The sales scale of small and medium power laser cutting equipment has maintained a relatively high growth rate,and the laser has achieved a high localization rate.Laser cutting is gradually becoming popular,and the market demands to further improve cutting efficiency,reduce standby time,expand application surfaces,and reduce operating costs.It is very important and urgent to optimize the structure of low-power laser cutting equipment.YX1513 laser cutting machine is a lowpower laser cutting machine,suitable for cutting thin plates.It has low purchase cost and can cut high anti-material.However,the inherent defects of the fuselage structure make it not ideal for thick plate cutting,power consumption control,intelligent control and so on.In this paper,the modal analysis theory and contact analysis theory are used to optimize the overall structure of the laser cutting machine.(1)Construct the geometric model and finite element model of the laser cutting machine.The 3D solid modeling of the laser cutting machine was carried out by Inventor software,and the modal analysis was carried out on different working conditions of the cutting machine.Static contact analysis was performed with ANSYS to determine the range of equivalent stress values 0.858 Mpa to 9.472 Mpa.The maximum equivalent stress and maximum displacement occur on the X rack and to determine the optimizable space of the strength machine.(2)Perform modal analysis on the whole laser cutting machine.The deformation and distortion of the fuselage structure are judged based on the mode vibration of the natural frequency of the whole machine.The finite element modeling and model processing results were verified by dynamic performance test experiments,Most of the order fitting errors are less than 20%.(3)Optimize the structure of the laser cutting machine.Based on the modal analysis,contact analysis and influencing factors analysis,find the weak links in the fuselage structure.With the equivalent stress maximum of 9.472 Mpa as the constraint,the structural weight is reduced under the premise of ensuring the stability of the fuselage structure,Adjust the height of the frame and optimize the distribution of the supporting beams.The resulting geometric mass was 1355.4 kg and the equivalent stress was 6.8535 MPa.After comparative analysis,it is found that all the indicators of the improved fuselage structure have been improved,and the performance and duration of the machine tool have been promoted to a certain extent.In this paper,through the optimization of the structure and performance of the research laser cutting machine,a set of structurally stable and lighter weight design dimensions is obtained.Help to improve product performance,further reduce market prices,and promote healthy and orderly development of low-power laser cutting industry.