The shaking of the machine tool is generally caused by the fact that the ground pile is not fixed firmly, but Chen Jianguo himself knows how to repair the technology, and it is impossible to solve such a simple problem. ”

Chen Jianguo agreed, turned on the power and fixed the defective products produced before to the vise, and then controlled the milling cutter for punching and milling according to the standard operating procedure.

Fang Dongping and Niu Xiaoqiang carefully observed on the side, at the beginning, the machine ran smoothly and could not see the slightest problem, but when the gear was processed to the fifth tooth, the cutter head appeared to have obvious jitter. The shaking is so strong that it looks like a milling machine is shaking.

Niu Xiaoqiang was inexperienced and failed to see the way. Like Chen Jianguo, the first thing that came to his mind was that the ground pile of the milling machine was not fixed.

Fang Dongping was different, he tilted his head and listened for a moment when he saw this scene, then waved his hand to let Chen Jianguo turn off the machine, and said with a slight smile: "Xiao Chen, just now the cutter head was shaking, which drove the milling machine to shake with it, the problem should be on the transmission shaft, not that the milling machine is not fixed." ”

Chen Jianguo was surprised: "Is it really a problem with the transmission shaft?"

Niu Xiaoqiang also looked at Fang Dongping with a puzzled expression, "Master, if there is a problem with the transmission shaft, this milling machine should be directly reimbursed, how can it run so smoothly at the beginning?"

The drive shaft is a delicate part of the machine tool, and any problem will cause serious consequences. The most serious thing is that the mechanical transmission system of the entire machine tool is scrapped, which is not much different from the direct reimbursement of the machine tool.

Fang Dongping taught Niu Xiaoqiang earnestly: "Xiaoqiang, there are many problems in machinery and equipment beyond your imagination, many of them are very confusing, you are too inexperienced in this area, so I will be surprised by my conclusion, I will talk to you about various existing problems after I go back this time, you first remember the experience gained by the master, and you can achieve twice the result with half the effort when you actually operate in the future." ”

Master and apprentice are actually the inheritance of experience, especially in maintenance, even more so, Niu Xiaoqiang currently lacks the most relevant experience, hearing this, he nodded very seriously: "Thank you, Master, I will definitely learn hard." ”

Although Chen Jianguo was surprised by Fang Dongping's conclusion, he still trusted Fang Dongping's technical level, and saw him bend down to open the toolbox, "I'll take the equipment apart and take a look." ”

It didn't take much effort for Chen Jianguo to remove the shell of the milling machine, revealing the mechanical transmission equipment inside.

Fang Dongping leaned over to take a closer look, and soon his face showed a look of doubt, and he said to himself: "Strange, I heard it clearly just now, why can't I see the slightest problem now?"

When he said this, he raised his head and instructed Chen Jianguo: "Xiao Chen, you turn on the machine, I want to see what kind of moth it is." ”

Chen Jianguo advised: "Don't get too close, otherwise you will be overwhelmed by the machine." ”

"Don't worry, I'm not that reckless. ”

"Okay, I'll turn the machine on. ”

Chen Jianguo turned on the power switch again, and under the guidance of Fang Dongping, he controlled the operation of the equipment to a very slow degree.

Fang Dongping looked at it intently, and after looking at it for a long time, he suddenly laughed: "Interesting, really interesting, I have lived for so many years, and I have never seen this kind of trick of pit people!"

Chen Jianguo and Niu Xiaoqiang were also observing from the side just now, but they didn't see anything, and when they heard Fang Dongping's laughter at this moment, both of them were confused.

Chen Jianguo couldn't help but ask: "Fang Gong, what do you mean? What kind of trick is it that pits people?"

Fang Dongping did not answer, but stretched out his hand and pointed to a transmission gear: "You guys take a closer look at this gear and see if you can find the problem." ”

The two of them got closer when they heard the sound, huddled together and observed the transmission gear repeatedly.

Chen Jianguo looked over and over again, but never found the problem. Niu Xiaoqiang was the same as him at the beginning, the more he looked at it, the more confused he became, and then he suddenly found something, and couldn't help shouting: "The specifications of this gear are wrong!"

After some observation, Niu Xiaoqiang finally found the problem. On the surface, this transmission gear looks just the right size and fits perfectly on the transmission shaft, but if you look closely, you will find that it has been stolen and replaced, and someone has replaced the original gear with another gear of the same size, resulting in the number of teeth not meeting the specifications of the entire transmission system.

If the number of teeth of the gear does not meet the specifications, there will be problems with the connection with other gears, which will affect the operation of the entire transmission system, and eventually cause the jitter of the cutter head.

I have to say that this question is too hidden, and at the same time it is extremely deceptive, if it weren't for Fang Dongping's rich experience, he determined the clue by listening to the voice one step earlier, I am afraid that it will be difficult to find the truth if I check it a hundred times.

After Niu Xiaoqiang's reminder, Chen Jianguo finally understood. He quickly counted the number of teeth on the gears, and after confirming that it was correct, he immediately guessed who did it. I saw him slam his fist on the machine, turned his head and walked out, roaring angrily as he walked: "Okay, you Liu Yuejin! See if I don't kill you!"

Fang Dongping stretched out his hand to pull, but Chen Jianguo's stubborn temper came out, he couldn't hold it, so he had to persuade verbally: "Xiao Chen, don't make a mistake, don't make too much trouble!"

He grabbed Niu Xiaoqiang as he spoke: "Let's go, let's hurry up and persuade the fight!"

The two of them ran out behind Chen Jianguo, Chen Jianguo was tall and fast, and when they caught up, Chen Jianguo had already pressed the young man to the ground and punched him several times.

He scolded while beating: "You dare to scare me like this! If it weren't for your sister's sake, I would have driven you away a long time ago! Don't talk about those things in the past, you have gone too far this time! If I don't teach you a good lesson, it will be difficult to vent the hatred in my heart!"

Chen Jianguo's wife was originally drying clothes, and when she saw that her husband pressed her younger brother to the ground and beat her fatly, her clothes were no longer drying, and she ran over with a crying voice: "Jianguo, if you have something to say, you should stop quickly, and if you beat again, you will break people!"

Fang Dongping and Niu Xiaoqiang also helped pull, and it took a lot of effort for the three of them to pull Chen Jianguo away. Liu Yuejin had already been beaten to the point that his nose and face were swollen, and two pieces of blood flowed out of his nostrils, staining the clothes on his chest red.

Chen Jianguo took the time to kick again, and then said hatefully: "Get out of here! Don't come back!"

His lover protected Liu Yuejin, and he was so anxious that he burst into tears: "Yuejin, what did you do?