The web is still formed by stamping. The No. 45 iron block of corresponding weight is burned red and white in the furnace. It is pulled out directly with large pliers and thrown into the mold.
"Empty empty empty!"
The metal block gradually turned into a discus, and then the discus was clamped, and the bottom was thrown into the punching mold, and a huge hole in the middle was dug out in two or two strokes.
The next step is simple modification, and so on. The whole process fully demonstrates the violent aesthetics of machinery, which makes a group of students who are new to casting excited.
More than a dozen cylinders have been cast, and the first cylinder has been completely cooled. The crane lifts the cylinder into the lathe for roughening.
The entire internal cavity is cleaned with a long-arm cutter, and the dimensions are determined by turning tools on both sides. The outer drum surface requires almost no turning, just simple alignment.
The next step is for the shaft head to enter the lathe and be processed to the size of the semi-finished product, and the web to be finished in shape. The two are combined with direct spot welding and the finished cylinder. qδ
"Zizzizi..."
The web, shaft head, and cylinder are completely combined, and with the sparks of oxygen dioxide welding shining, the entire workpiece slowly becomes one. After the workpiece is completely cooled, the welded piece is processed on the machine tool for a second time to ensure the concentricity of the shaft heads on both sides.
"Master Qi, for the last step, just use a planer to cut out grooves on the surface, and then wait for me to apply glue."
Seeing the workers strictly following their own process routes, Ji Donglai nodded, and Da Qizi breathed a sigh of relief. As a skilled worker, what he was most worried about was being followed by a leader who didn't know anything and was giving random instructions.
Whether in state-owned factories or private enterprises, there is always the buzz in the ears of skilled workers. They tell you that this is wrong and that is wrong, and I give you random instructions.
If you don't follow his requirements, it will be said that you don't respect the organization's opinions. If you listen to their opinions and process them into scrap products, it will be said that your level is not up to standard.
Ji Donglai just watched the entire drum processing process without saying a word. Regardless of whether the other party understood it or not, his respect for the workers was worthy of respect.
"Okay, boss, you don't have to follow me. We'll let you know when we've finished processing it. It will probably take three days to finish processing it!"
The sky was completely dark, Da Qizi wiped the sweat from his forehead, and Ji Donglai nodded.
The rubber manufacturer was also working overtime to process the rubber. Ji Donglai greeted Ding Aixing and whispered a few words in his ear, and the other party hurriedly drove to SJZ.
At noon the next day, Ding Aixing and the vehicle transporting rubber arrived almost simultaneously.
"Brother Donglai, is this it? This stuff is hard to buy!"
Ding Aixing said as he took the release film off the car. Ji Donglai looked at it briefly, nodded, and asked the workers to poke the entire rubber material from the car into the workshop.
"Fortunately, the rubber is thick enough! The shaft head is connected to the reducer. You guys followed me and stretched it..."
After reaching out and pinching the rubber material, Ji Donglai very carefully asked his subordinates to take out a piece to make a test piece, and he and all his subordinates began to wrap the entire roll of rubber around the processed metal roller.
Bearings are installed on both sides of the roller with grooves on the surface. The adhesive sprayed on the surface has dried up. The reducer above the roller drives the roller to slowly start to crush the rubber sheet on the surface of the roller to ensure the sealing fit between the film and the roller.
According to the drawing, the entire surface of the steel rod needs to be wrapped with fifteen thicknesses of rubber. Ji Donglai pressed the head of the rubber sheet into the pitted surface of the steel rod, and then started the reducer connected to the rubber roller.
As the reducer starts slowly, the film between the driving wheel and the driven wheel is gradually straightened. Gradually, the rubber film becomes tighter and thicker. On the fifteenth floor, Ji Donglai nodded and the reducer stopped.
Ji Donglai directly smashed the rubber sheets together, and then covered the entire surface with a release film. While wrapping it, he used a metal rod to drive away the air.
"Mount the mold and pay attention to the torque of the mold clamping bolts. It should be over 25 Nm!"
After the rubber on the entire surface of the metal rod was wrapped, Ji Donglai gave an order and the cylindrical mold was fastened. The bolts are locked, and the worker sends the entire rubber roller into the furnace.
If this happens again and again, ten
All five rubber-coated rollers finally entered the furnace, and as the workers sealed the entire surface of the furnace, Ji Donglai set the furnace temperature at 200 degrees and turned on the power.
"Waiting for three hours to eat roast duck, just look at it occasionally, as long as it doesn't accidentally drop the temperature!"
The process of hanging rubber rollers is not difficult, but the whole process is very slow, time-consuming and labor-intensive. The same is true for large factories without exception. Ji Donglai washed his hands and let the workers solidify the various processes.
Ji Donglai still doesn't plan to use the machining center for the next process. Because he drove away Livit, almost all of Sver's molds were given to him by Ji Donglai. Occasionally, some that he didn't like to process were given to Zhang Yu.
Now there is a golden rooster that lays its own eggs. There must not be any idle time. In addition, workpieces are constantly being delivered from the elevator factory. It is necessary to ensure that good steel is used on the blades of the machine tools.
"Give this drawing to Master Qi, look for the bevel gear among the scraps we received, and then use two chains to design a tool bar telescopic mechanism. My design is like this. Let them look at the details. That’s it!」
Ji Donglai used UG to simulate a machine tool process, similar to a car differential. On the surface, Ji Donglai added a chain-driven cam to drive the turning tool bar to ensure that the turning tool bar can expand and contract on the outer surface of the roller as required.
The surface fixation of the main tool holder was all designed by a few veteran technicians on site. Ji Donglai was too lazy to do the rest. After all, there were engineers now. Ding Aixing agreed to find a few old masters, and they immediately erected the work after receiving the drawings. Thumbs up.
"This little boss is not easy to fool. A 20-year-old can research a three-axis machine for you. This alone will make us admire you. Just do it!"
Da Qizi and the old mechanic looked at the drawings and finally handed them to the old mechanic. The old mechanic took a sip of water from a big teapot, lit a cigarette, and led his apprentice into the scrap iron workshop.
Invite everyone to start looking for scrap gears and scrap shafts according to the reduction ratio.
This place is not far from Tianjin Port. Most of the scrap metal comes from scrap ship parts in Tianjin Port. The quality of the metal is not good. Similar parts were quickly found, and processing and transformation were no problem for experienced technicians.
Ji Donglai barely participated. When the rubber roller came out of the furnace, Ji Donglai came to the scene to take a look.
"Hey, let me go, it's like a leaky egg, the soup is leaking!"
Almost every rubber roller had rubber leaking out from the side. As the car rolled out of the stove, Ji Donglai carefully inspected each rubber roller.
