Development Of Laser Marking Automatic Production Line For Coal Mine Pick

Mining pick is the cutting tool on the cutter head of roadheader.The pick collides with coal seam and other hard materials and is subject to corresponding stress and impact load,resulting in failure^[1].For companies,it is necessary to track the situation of each pick product,including production links,circulation links,and customer use links.Each batch of products needs to be marked.This can not only analyze the impact of production technology on product quality,but also have a certain anti-counterfeiting effect.At this stage,the marking of domestic mining pick products mostly uses manual and pneumatic marking machines to mark the products,and the process is relatively primitive.The traditional marking process occupies a lot of labor.In the current situation of rising labor costs and difficulty in recruiting labor,this process is in urgent need of improvement.In order to change the occupation of manual labor in the existing marking process of mining pick,and to improve the production efficiency,this paper optimizes the marking process of mining pick and adopts the process suitable for automatic production.Through the design of push plate feeding machine,the material handling of mining pick is completed;Through the combination of robot and vision system,the precise grasping of mining pick is completed;The efficiency of marking the mining pick is improved through the double station loading and unloading separation mechanism;By replacing the pneumatic marking machine with the laser marking machine,fast marking and fast switching can be realized.In order to realize the orderly operation of the equipment,the control system of pick automatic marking production line is composed of PLC,touch screen and frequency converter.In order to better realize the commissioning of each stage of the production line and achieve the conditions of automatic operation,the working mode of the automatic marking production line can be switched between manual or automatic;Mt8102ie industrial touch screen is selected as the upper computer to realize convenient parameter setting and operation status monitoring;Siemens s7-1200 is used as the lower computer to write the control program;Data transmission and interaction between touch screen and PLC are realized through communication;Machine vision is selected to recognize the position of the workpiece and analyze the data,and cooperate with KUKA kr6-r900 six axis robot to realize the accurate positioning and grasping of the marking workpiece;All parts of the production line cooperate with each other to realize the complete process of automatic marking by executing the program written in the core control unit PLC.This article also carries out the motion simulation of the automatic marking production line of mining pick,carries out the interference inspection and beat optimization of the production line process,and improves the production efficiency of the production line.The automatic marking production line of mining pick realizes the automatic production of mining pick marking,greatly shortens the marking production time of mining pick and improves the production efficiency of products;Reduce the number of workers and liberate people from heavy labor and production;The consistency of marking effect is improved and the product quality is improved.