Design Of Weldind Robor Workstation Of Noise Barrier Pillar

Recently, progress of China urbanization is becoming faster and faster. A lot of high railway and high way were built. The social development brought us much convenience, but noise pollution of environment has influenced people’s normal life. In order to give people a comfortable life and work environment, noise barrier should be used to reduce noise in the heavy noise pollution area. Noise barrier pillar is the foundation of construction and installation of noise barriers. H-beam and steel plate was welded to establish pillar. Because H-beam is long and cumbersome, and manual welding not only labor strength, the production efficiency is low, but also it was difficult to ensure that the quality of the welding seam can achieve level one.Combined with the noise barrier pillar welding process requirements, the welding robot workstation structure and the design of the control system of workstation have been completed. The workstation consists of two arc welding robot and flipping special fixture institutions. By using the programmable controller (PLC) control double arc welding robot and tilting fixture institutions. Compared to the current artificial welding production line, not only has the stable welding process,uniform weld,high productivity, improved working conditions, reduce operation technical requirements,but also provide the technical basis for Flexible production line of welding, can realize the noise barriers column the half automation circulation welding. This thesis mainly to complete the following several aspects:(1)On the base of noise barrier pillar welding process’research, the noise barriers pillar welding robot special jig system Design scheme has been draw up, completed the welding robot and auxiliary welding equipment selection, and the layout of workstation structure.(2)Based on3d software Pro/E established the3d model of flipping special fixture institutions, finished the calculation and design for flipping fixture institutions’ relevant moving mechanism, and selected the corresponding product model, realized the flipping fixture institutions position bracket has static characteristics analysis and verification by the ANSYS software. (3)The workstation control system programmable controller and CPU unit have been selected. The control panel and function were designed, and solved the control system key signal processing.(4) Based on the robot welding experimental research to H-beam and steel plate, studied and possessed the influence of main welding technological parameters to welding quality, discussed the Angle of weld forming regularity, and based on debugging results of experimental site, the welding process parameters have been optimized. In order to meet the quality requirements of welds, reasonable welding procedure specification parameters have been set up, and had the detection of appearance and Ultrasonic flaw detection. The results showed that the experimental weld achieved a level quality standard, and got the expected effect.