After explaining the principle of maintenance to Hu Changzheng, Guo Yonghe began to do it.

The result was more conservative than the ten minutes he told Xiang Lixin that he could repair the thermal relay, in fact, it only took him more than a minute to complete the repair of the thermal relay.

Xiang Lixin looked at it from the side, and almost poured a quick-acting heart-saving pill into his mouth.

Can the thermal relay that was repaired in more than a minute really work?

He looked at Hu Changzheng nervously, waiting for the results of his test with the instrument.

Hu Changzheng repeatedly tested this thermal relay with an instrument three times, and the results proved that Guo Yonghe was right, although there were only two resistive thermal elements, the performance indicators of the thermal relay were completely normal, and there was no difference from the previous three resistive thermal elements.

"Report to the factory director, the performance index of this thermal relay is completely normal and can be installed and used!"

He reported to Xiang Lixin.

Xiang Lixin's heart hanging in his throat fell back into his stomach, and he made a gesture to Hu Changzheng and said, "Then don't waste time, hurry up and install it on the machine tool and start it!" ”

"Not yet!"

Hu Changzheng pointed to the technicians of the equipment department who were busy on the side, and said to Xiang Lixin: "We will not be able to install this thermal relay until their servo motor is processed and installed." ”

When Xiang Lixin pulled Guo Yonghe to the side to talk, Hu Changzheng was not idle here, and first took matters into his own hands, removing and reinstalling the air conditioning baffle that had been installed by Du Xiangyang in the electrical control cabinet before, and then commanded the subordinates of the equipment department to disassemble the servo motor that entered the water and clean and dry the inside.

Because if the inside of the servo motor is not cleaned and dried, then even if a good thermal relay is replaced, the machine may still be burned out again after starting.

It's just that the internal cleaning and drying of the servo motor is a tedious and meticulous job, so now Guo Yonghe has repaired the thermal relay, and the technicians of the equipment department have not completed the internal cleaning and drying of the servo motor.

So Xiang Lixin could only wait patiently.

After about ten minutes, the technicians of the equipment department completed the internal cleaning and drying of the servo motor. Then they assembled the servo motor and installed it into the servo system of the machine tool, which took more than ten minutes.

In fact, the two add up to less than half an hour, but it makes Xiang Lixin feel extremely long, and he almost has a bubble on his mouth. It was easy to see that the servo motor was installed, so he immediately instructed Hu Changzheng to install the thermal relay.

Hu Changzheng naturally understood Xiang Lixin's mood, he didn't dare to slack off, and installed the thermal relay quickly, and then carefully checked the connection lines including the servo motor and thermal relay to prevent mistakes in the busy and misconnected.

After checking everything and making sure everything was fine, he stood up and made a gesture towards Xiang Lixin.

Xiang Lixin waited for him to make this gesture, and immediately said to him when he saw this: "Start!" ”

So Hu Changzheng pressed the start switch of the Sarem CNC machine tool, and with a calm low sound, the machine tool started.

Xiang Lixin, Hu Changzheng and Fang Yunlei, director of the metalworking workshop, were all crowded in front of the electrical control cabinet, staring nervously at the control panel of the private service system above, for fear that there would be a fault alarm above.

As a result, they waited for four or five minutes, and the servo system showed normal, no fault lights flashed, and no alarm sound.

But even so, the three of them still didn't dare to let go of the breath in their hearts.

Because some faults will not be displayed when the CNC machine is turned on and standby, and will not be displayed until the machine tool starts to work.

"Director Fang, you can try it!"

Xiang Lixin said to Fang Yunlei.

Fang Yunlei responded "yes", then pressed the pause switch of the machine tool, took a tooth blank roughed in the afternoon and put it into the CNC machine tool, entered the processing program code on the servo system, and then restarted the switch.

Just listen to the sound of "hum", as the power is turned on, the spindle of the Sarem CNC machine begins to rotate rapidly.

With the rotation of the spindle, the kinetic energy is transmitted to the smooth rod next to it through the bridge gear, and then it is driven to the worm gear with the worm connected to the smooth rod, and the worm gear drives the longitudinal cam connected with it......

Through a series of complex transmissions, and finally with the help of limit switches and electromagnets, the rough machining tooth blank on the CNC machine tool is pushed to the spring chuck in front of the spindle and firmly fixed.

The alloy bits responsible for machining are then given the specified position. With a sharp and piercing metal cutting sound, the blue steel shavings rolled off one by one, and soon a delicate gear revealed its shape with the reciprocating cutting of the alloy bit.

Finally, with the completion of the processing, only to hear the "click", the spring chuck is automatically released, and the machined gear falls into the finished iron box directly below the spring chuck head.

During the whole process, the machine ran completely normally, and there were no fault lights and alarm sounds.

But that's not enough!

Hu Changzheng on the side immediately picked up the vernier caliper and took the finished gear out of the iron box for measurement.

Soon, the entire gear was measured, and Xiang Lixin, who stretched his neck and was waiting for the results, said: "Factory director, the accuracy of the gear is not only compliant, but also meets the standard of excellent products!" ”

Xiang Lixin's expression was relieved after hearing this, but Fang Yunlei ordered: "Director Fang, continue to try the next step!" ”

So Fang Yunlei continued to take out the tooth blank and put it on the CNC machine tool to continue processing.

One, two, three, he completed the processing of ten gears, and the machine tool did not have any failures, and according to Hu Changzheng's on-site inspection, the pass rate of these ten precision gears reached 100 percent, and the accuracy of six of them reached the level of excellent products.

"Alright, Director Fang, it's okay to stop!"

At this time, Xiang Lixin finally let out a long breath, so that Fang Yunlei didn't have to continue to try.

The data in front of me are enough to prove that the Sarem CNC machine tool was perfectly repaired by Guo Yonghe, and there is no fault!

At the same time, this also means that the order of nearly one million US dollars from the provincial foreign trade company, which was almost flying away before, has fallen into the pocket of the heavy machinery factory again, and the deputy department-level leadership ladder that was almost closed to him has been reopened to him......

"Technician Guo, thank you, thank you!"

Xiang Lixin held Guo Yonghe's hand and trembled, "Thank you for saving our Heavy Machinery Factory this time." In the future, the heavy machinery factory will be your second home for Guo technician.

"In the future, no matter what you have to do, you are welcome to come over at any time!"