Chapter 8 The high-end starts with the low-end
As soon as he went to work the next day, Gu Fei hurriedly finished the last bit of work yesterday.
After completion, under the watchful eyes of several female workers, he checked all the processes several times. It wasn't until No. 1 was impatient to tell him that everything was OK that Gu Fei gritted his teeth and pressed, start!
Brush!
The machine vibrated regularly, and there was no "kakaka" noise or "clang" impact. The processed sound sounded so calm and even sweet.
Sweet?
Gu Fei shuddered, he felt like he was about to see a ghost. You can hear a sound similar to the silver bells of the girls laughing through the metal cuts.
Gu Fei, who came back to his senses, stared at the display screen on the machine with a grim face.
All kinds of data on it are tumbling, and a bunch of program code, mechanical coordinates, absolute coordinates, and relative coordinates are changing rapidly, making people dazzled and confused.
However, Gu Fei ignored them, he only kept a firm eye on one, and that was the processing time.
01 seconds
02 seconds
……
1 minute 00 seconds
1 minute 01 seconds
"Ok! That's it!" Gu Fei couldn't help but wave his fist excitedly as he watched the processing time jump to one minute and one second.
Sure enough, at this time, the CNC code on the machine also jumped to the M30 that represented the end of the program.
The machining time is extremely precise, which is one of the biggest features of CNC technology.
There was a rolling sound, and the shiny finished product quietly rolled out of the export warehouse.
A few female workers who had nothing to do hurriedly picked it up and handed it to Gu Fei. Gu Fei took it with a smile, picked up the caliper and measured it carefully from beginning to end, and soon showed a satisfied look.
"Xiaofei, how is it?" Shen Xueyan asked anxiously.
For them who have no work to do, it is better to work than to watch the leaders walk around with black faces.
After all, it is easy and pleasant to press once every minute or so. Especially in the middle minute after pressing start, you can do whatever you want, and no one will care about you.
"Measure it yourself, will you?"
Gu Fei smiled and pushed the calipers and drawings to the female workers. I repositioned the material and pressed start again.
A bunch of women suddenly looked at each other, and one by one they excused themselves, saying that they couldn't look at calipers.
In fact, not to mention women, even many young boys are helpless when they see calipers. Even if you patiently teach them for hours, they still can't read a count. People can't help but wonder if they speak a foreign language, otherwise they can't understand it.
In the final analysis, CNC manufacturing is not a high-level job as imagined. After a period of contact, many people see its true colors and are reluctant to learn more.
However, Gu Fei is calm, without the training at the bottom, where can he come from high-end manufacturing? It's just that others don't want to learn, so there's really no way.
Soon the second and third products were made, Gu Fei took a quantity, and immediately frowned.
The second product has exceeded the tolerance, although there are only one or two wires, but it is also unqualified. As for the third one, it was out of tolerance at the beginning and was scrapped directly.
Gu Fei was sweating profusely.
When he measured the second one, he thought there was something wrong with the calipers and was thinking about changing them.
In fact, the caliper is not accurate, even if it is used by the same person, with a little more effort, a few wire errors will come out.
But the third one came out and measured. Yes, Gu Fei must have something wrong with the machine this time.
Opening the warehouse door, Gu Fei looked around. The knife is not broken, the program is not moving, and all kinds of positioning are normal......
Gu Fei turned around, didn't find any problems, and was suddenly a little helpless.
Fortunately, he had a number one, and Gu Fei hurriedly called out.
"We can work backwards to push back the cause. No. 1 is a good teacher, and he patiently instructs: "The product was originally a standard straight cylinder, but now there is a big end and a small end, right? That means that the tool is not parallel to the axis of the material when cutting, but an oblique line." ”
"Then there are several possibilities: First, the knife is loose. Second, the clamp is loose. Third, the tool or material is stretched out too long, and it is bent by force during processing. Fourth, the material itself is too long, the spindle speed is too high, and the centrifugal shaking ...... when rotating"
No. 1 babbled on and on all the way to tell all kinds of bad causes. Hearing this, Gu Fei was willing to bow down, and even a little bit of a five-body surrender.
It's all experience.
Don't look at them as simple, if you explore them alone and don't have time to accumulate them, it's basically impossible to understand.
According to the reasons one by one, Gu Fei quickly changed all the factors that would cause undesirable results.
Started again, and made five products in a row. Gu Fei took two calipers to measure alternately, and finally smiled.
It's just that before Gu Fei was happy, No. 1 spoke again.
"At the moment, your changes are only temporary, and it is easy to recur when you make them on a large scale. You can modify the following to ensure quality. ”
"First, reduce the margin of the light knife and leave only a few wires. Second, add a light knife. Third, add an anti-shake ring to the spindle. Fourth......
Gu Fei took the pen and silently remembered. As a result, the more No. 1 talked about it, the more bizarre it became, and finally he even redesigned the machine tool and changed the transverse spindle to the longitudinal spindle.
Gu Fei hurriedly stopped: "No. 1, don't you think this is too high-end?
One hated that iron could not be made of steel, and it replied through gritted teeth: "What kind of ability is it to make these ordinary products?" With my existence, you don't just want to drive these small machine tools, right? In the future, designing high-end machine tools is the real ability. At that time, in order to achieve certain purposes, what is the point of changing the machine spindle? Even if the whole machine is overturned and rebuilt, it is not a big deal. ”
Gu Fei was speechless with tears streaming down his face, so he had to write it down silently.
It's another flip change. Finally......
"It's stable. Gu Fei smiled and reported the good news to several female workers, and he said: "However, the first inspection and the processing order placed by the production department office can only start." You'll have to wait. ”
The first inspection is a matter of the quality control department, and the production and processing list has to go to Zhang Li.
Gu Fei happily went to the office of the production department again.
Knock on the door, push the door, enter the door.
Sure enough, Gu Fei saw Wu Gong's gloomy face again, and even gritted his teeth and quickly removed his face.
Gu Fei ignored him and slowly explained his intentions.
Actually let this kid make it?
Wu Gong was stunned for a while, and then, his face darkened.
"Yours is the case. After Zhang Li called the quality control department with bright eyes, she returned to the car department with Gu Fei in a row.
While walking, Zhang Li quietly told Gu Fei: "The knife problem has been investigated." After Wu Gong's nephew returned the money for the knife, it had already been fired. There's also good news, the company seems ready to reward you for something. I estimate it to be a few dozen dollars. ”
Dozens of dollars......
Gu Fei rolled his eyes. He didn't care about the reward, he said with a smile: "No wonder Wu Gong's face just now almost ate me." ”
Zhang Li was not as relaxed as Gu Fei, she shook her head and said: "As the saying goes, the county official is not as good as the current management, you can do it yourself, be careful that he gives you small shoes to wear." ”
The soldiers will block, and the water will flood. Gu Fei shrugged his shoulders and didn't pay attention to it.
Before coming to the No. 5 machine, the people from the quality control department had already come. Zhengzai carefully examines the various data of the five products.
Generally speaking, quality control (QC) and various types of technicians are inherently antagonistic relationships. Because they have always only measured products according to the annotations on the drawings. If there is a slight discrepancy between the product and the drawing, they will stop the machine on the spot, regardless of the reason.
Strictly, this seems like a good thing, but it's not.
Because many designers, including some old designers who have become famous, have been sitting in the office all their lives, blowing air conditioners and drawing drawings, and have never had much contact with product processing.
They only design with their eyes closed and size, marking every aspect to the core. But I don't know that they have a label in hand, and many times the processing side can't be made at all.
When you meet this kind of designer, and then you meet a quality management that would rather kill mistakes than let go, you will cry slowly.
Call and talk to the designer and tell the designer that there is something wrong with your design. It's good that the other party can understand, if the other party happens to come to the eldest aunt, it really calls the sky and the earth not spiritual.
There is a saying that may explain everything, good design may not understand manufacturing, but good manufacturing will definitely design.