The parts tolerance of the parts does not exceed 1/40 of the diameter of one hair, and the micrones of the "great god" He Jianbin of the millingman

Elephant reporter Chen Zhengyi/Wen Tu video

On August 2nd, at the third workshop of the 693 Factory of the Ninth Hospital of Aerospace Science and Technology Group, He Jianbin, wearing a blue work clothes, was operating a CNC screen in front of CNC milling machines. If it was not introduced by the staff, it would be difficult for elephant journalists to associate the simple workers in front of them and the "Aerospace Contribution Award" and Zhengzhou's "May 1st Labor Medal" and other honors.

He Jianbin has been engaged in CNC milling for 22 years. From apprentices to today's senior technicians, from the persistent young man to the ambitious craftsman, he has measured his own world with micron in ordinary positions.

Come earlie

In the summer of 2001, He Jianbin faced graduation and eager to go to work in well -known enterprises. Three years of university studies have allowed him to master the strong milling knowledge. Coincidentally, the 693 factory came to the school to recruit.

He Jianbin remembered very clearly that at that time, more than 100 people in the school signed up, and only 8 people were admitted in the end. He was one of the 8 people.

In the school's learning, most of the theoretical knowledge and entering the factory are the most important. He Jianbin followed the master every day, starting from the most basic drawings to operating CNC milling machines. In the early stage of practical practice, because there is no rich operating experience, it is no more common to be scratched by a knife. He Jianbin will always put a few band -aids in the pocket of clothes. I don't feel pain, nor do I feel bitter. "

After more than 20 years, He Jianbin still remembered the time when he just joined the job. As soon as he was bright, he entered the workshop. When he came out, he was full of stars.

Because of his excellent performance, He Jianbin was transferred to Beijing to participate in the "Special Training Course of the Aerospace Science and Technology Group Technician" for further studies, which also laid a solid foundation for his devoted to study major research topics in the future.

(High -precision parts)

There are no 99.9%products, only 100%standard

"The tolerance of this part is 0.008 mm, and it is okay." On August 2nd, He Jianbin seriously used the number of tape measures to measure the accuracy of the parts. The small parts were not thick, but each part needs to be measured more than ten times ten times. Only put it in the storage tray. For this detailed work, He Jianbin repeated hundreds of thousands of times a day.

As a millingman, the processed parts can not only meet the product assembly requirements, but also meet the accuracy requirements. This is very difficult, but He Jianbin can take care of the two at the same time.

He Jianbin was assigned by the factory to a large shell mission to process a certain national defense equipment.

You know, He Jianbin needs to be processed without simple small parts, but for national defense equipment. The tolerance cannot exceed 0.01 mm. You must know that the diameter of a hair is close to 0.08 mm, which is equivalent to a diameter of a hair diameter. Forty -in -one, this difficulty is self -evident.

"If you want to make parts required by R & D personnel, you cannot use existing auxiliary equipment to make it." In order to find the right auxiliary equipment, He Jianbin tried to make various machines in the factory to make. Finally, in his search for finding Below, the appropriate auxiliary equipment -processing center was found.

At the same time, He Jianbin also innovated in design and designed a base suitable for parts to ensure that the parallelity of the plane of the small holes in the part can reach 0.01 mm. The tolerance accuracy of 0.002 mm.

Drawing, modeling, adjusting the knife, and modifying programming again and again, He Jianbin repeatedly improved, from 0.008 mm to 0.006 mm, to the final tolerance of 0.002 mm. Hundreds of experiments, in the end, He Jianbin succeeded. At the same time, the processing rate of processing reached 100%, far exceeding the design requirements.

(Part of the parts produced by He Jianbin)

In addition to making breakthroughs in terms of skills, He Jianbin also innovated in production part efficiency. Due to the tight time of each processing part, the number of parts to be made is very large, He Jianbin finds a way to reduce unnecessary steps to innovate in process. In the end, during the development and production process of the low magnetic rectangular shells of the supporting product of the Mars detection project, He Jianbin innovatively designed the core axis work, the processing efficiency was improved by 35%, the pass rate was increased to 99.8%, the development cycle was shortened by 10 days, and the subsequent finished products were subsequent finished products. The assembly test has won more time.

(CNC milling machine is working)

17 processing technologies for processing technology, the most critical problem to crack

Now, He Jianbin can easily talk about his work experience.

"The most important thing is practice to do this job." He Jianbin said that each time the task was designed by colleagues who participated in the research and development, and asked them to process the parts according to the process on the drawing.

For milling workers, the drawings of R & D personnel are like talking on paper. It is unsuitable for the inspection without practical testing. And their work needs to be made through practice. This requires milling workers to continuously draw pictures, models, and adjust tools to make parts required by R & D personnel.

In these years, He Jianbin has counted many apprentices. Many people have been promoted to technicians and senior technicians. They have become the "comrades" who fought together and completed countless urgent tasks.

In order to allow the apprentices to fully grasp the relevant knowledge of mechanical processing theory, basic application processing, and optimization process optimization of CNC programming procedures, He Jianbin handles his apprentices to overcome the problem and requires the apprentice to write down the experience of overcome the problem. Know how to do it. At the same time, he also taught his apprentices without reservation.

Relying on the innovation studio platform, He Jianbin led the team to complete 17 national key aerospace engineering and national defense equipment supporting parts processing technology research. The results of research and research solved the company's most critical and urgent processing technical problems.

“每次看到火箭成功发射、空间站的对接成功，心里都会特别的激动，看到现在航天事业的蓬勃发展，我都无比的自豪，这也更加坚定了自己钻研技术的决心，因为我们知道， Doing aerospace products really need to be serious and serious. Only in this way can I be worthy of every part he made. "He Jianbin understands that he has a great responsibility. Task.

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