Wearing simple red overalls.，Wear a blue helmet.，Plus oneN95 masks，See Miao Ding for the first time，Slightly surprised，I can't help asking：“This is normal wear for welding operation？”
He nodded affirmatively.，And pointed to the six-axis welding robot behind him.，Said：“It's enough to operate the robot and wear these.。”Then he pointed to the distant manual welding area.，The workers were seen wrapped in dark blue protective clothing and masks.。
AtUPrepare for welding operation before type lug seat
Miao Ding is an intelligent welding robot operator in the second shift of the general manufacturing plant.，The six-axis welding robot is his working partner.，He operated the robot to weld the cutter head of the Shield Machine、Shield body、Main drive, etc。
These days，Miao Ding's task is to weld the shield grouting block.。He walked straight to the workbench.，Pick up the teaching pendant，Start programming job。
Shield grouting block in front of us，There are six small plates 20 mm thick.，They need to be welded to a length of 6 meters.、On a 40cm wide rectangular block。“6 boards，There are 12 seams.，Can be welded in one day。”Miao Ding is not busy.、Very confident，He said it would take at least a day and a half to weld by hand.。
Six-axis welding robot one person two machine operation
It's a craft.，The weld shall be welded flat.，And prevent leakage at that same time。Miao Ding holds the demonstrator in both hands.，Programming and teaching according to weld groove。“XIt stands for forward and backward，YOn behalf of left and right，ZRepresents up and down。”He skillfully pressed all kinds of enable keys.，Driving each joint of the robot to move according to the instruction。
A few minutes down，The teaching programming is complete，With one-button start，The robot began to swing，Up to the groove area，Instantaneous welding spatter。
Involved in welding“Dinghai”Shield Machine
“This is the first process.，Make a base with welding wire，About 2-3 mm thickness。”Miao Ding introduced，There's padding in the back、Two working procedures for covering。
To the fill operation，The thickness of each weld is 2-3 mm，The 20 mm thick groove shall be welded flat.，It needs to be filled 6 times.，This process is a test of the operator's eyesight.。Period，Observe the flatness of the weld from time to time.。
“Robot from arc starting to arc stopping， Electric current 、The voltage is changing，Weld fill will be one high and one low。”To this，Miao Ding has his own solution.，First, weld two layers in the same direction.，Reverse weld two more layers，And so on，Reduce the height difference of the weld。
This method alone is not enough.，Fill to the last few layers，Miao Ding will be in the middle of the arc starting point and the arc ending point.，Interspersed with several coordinate points，Fine grinding according to the height difference of the groove，Accelerate welding at the height of weld，Slow welding at the lower part of the weld，Set aside 1 at the end-2 mm recess to cover face。
“Covering is the finishing operation.，The most critical，The current, voltage and speed should be reduced.。”Miao Ding picked up the demonstrator again.， Electric current 、Regulate the voltage to 260 amperes respectively.、28 volts，Speed down to 35 centimeters per minute.，The swing amplitude of the welding gun shall be controlled within 2mm.。
Welded shield body grouting block
Moments later，One weld finish capping，Miao Ding is satisfied with the programming of the next weld after checking.。
Before learning to operate a six-axis welding robot，Miao Ding has done manual welding for 10 years.。“I used to work for a day.，Always accompany with welding flower。Now just do the programming and watch on the fly.，You don't have to stay at the welding point for a long time.。”Miao Ding contrast said。
“Wear heavy labor protection clothes.，When squatting down，Hold the protective mask in your left hand，Hold the welding torch in your right hand.，Close contact with the high temperature of nearly 1000 degrees.；At the time of changing venues，Carrying a wire feeder of more than ten kilograms，Move back and forth。”Think back to the years of manual welding，Miao Ding's memory is still fresh。
All these years，Railway Construction Heavy Industry Accelerates the Transformation from Manufacturing to Intelligent Manufacturing，Miao Ding Becomes a First-line Practitioner of Transformation。From manual welding to intelligent welding，After the transformation is a pleasure.，The transformation process is not easy.。
Miao Ding has a period of discomfort.。Technical secondary school education，No English，Teaching and programming based on English mark，I don't understand、I don't know why，Miao Ding was at a loss at first.。
But the difficulty did not baffle him.，Miao Ding followed the monitor Song Haipeng to learn step by step.，Participate in all kinds of training of the company，Often communicate and discuss with technicians。Don't understand the operation logic of six-axis robot，Learn coordinate system positioning first.；Do not understand the method of operation，Memorize the functions of various enable keys by rote.；Can't program，While learning, he groped for various programming instructions.。
Record various programming instructions
“It hurts to press my hands.。”Miao Ding said，In the transition period，Psychologically rejected.，I don't think it's as fast as manual welding.。After more than two months of hard training.，In the end, practice makes perfect，Basic mastery of robot operation skills。
“Liberate people.，The efficiency is also improved.。”Talking about the advantages of robot welding，Miao Ding's expression is carefree：“And that weld seam is more beautiful，The quality is more stable，Homework is also safer.。”
“Switch to machine welding from 2021，Through two or three years of experience.，Miao Ding has become a capable backbone and operator in the class.。”Song Haipeng praised。
Check the weld flatness
The harder you work, the more comfortable you will be.，After the transformation，Miao Ding meets a different beauty.。“Learned new things.，Enrich your skills.，I feel like I'm following the times.，His thoughts changed accordingly.。”Miao Ding said。
From manual welding to intelligent welding，Miao Ding crossed the discomfort period，Met a different spark.，It also foresees a different self in the overall situation of integration into development.。
