Universal Milling Machine Test Run

Do you know the difficulty of producing the universal milling machine?

Elements of measuring milling machine or universal milling machine have three main points: First, the function; Second, the performance; Third, precision. This is the main basis for the detection of #UniversalMillingMachine, but also test of the manufacturers' ability.

1. Function. The main functions of milling machine include vertical milling function, horizontal milling function and various combination functions.

2. Performance.It is important that the operation of the milling machine is convenient, safe and reliable.

3. Precision. The accuracy of the universal milling machine is an important basis for determining whether the milling machine can process high-precision workpieces.

The main difficulty of producing universal milling machine is milling head. Because the universal milling head is two 45-degree joint surface. The accuracy of these two faces is the most difficult to process. Even a small error will cause the milling head rotation error.

So make sure that the two parts of the universal milling head have a 45 degree angle that can be accurate. So the processing equipment requirements will be higher. And the combination of milling head gear is equally important, indispensable. The accuracy of the milling head itself determines the accuracy of the milling head rotation, combined with the gear on the noise and the life of the machine has a key role.

Only to clear the difficulties of universal milling machine production, and strive to break this difficult, we can produce high-quality universal milling machine.

Tips of simple universal milling machine repair

Today, let's talk about how to check and repair if there are some small faults in universal milling machine.

Because most of the faults are inside the machine tools, it is difficult to see them intuitively, which brings us some difficulties in checking the #UniversalMillingMachine.

First, the machine body check. Mainly to check whether the universal milling machine spindle is loose.Remove the cover plate of the spindle box and use a screwdriver to pry it out of the slot of the lock nut until the power is turned off. Then, use the return iron, do not live in the main shaft, adjust the nut on the main shaft bearing with a screwdriver, so as to reach the tightness. Sometimes it is necessary to check whether the gears are damaged or not, and carefully eliminate all the faults that may occur in the milling machine.

Second, universal milling machine circuit inspection:

1, the same type of contactor coil can be replaced according to the existing conditions, and the contactor can also be replaced.

2, if the winding or resistance is very small, should be judged as the contactor coil burned, can be replaced according to existing conditions of the same type of contactor coil.

3, in case of disconnecting the power supply, use the multimeter resistor to measure a set of normally closed contacts of the spindle speed change switch.

4, press the operation button, use multimeter resistor files to test whether SB1 and SB2 are reliable, find out which button is not connected properly, or press not to access.

5, carefully check the universal milling machine control circuit, the joints are burned or because of vibration caused by poor contact, check a joint contact is not good, to re compression joints.

6, in the case of disconnecting the power supply, you can also use the multimeter to open the contactor arc cover, with a screwdriver handle, make the contactor closed movement artificially, and then test the contactor KM3 self-locking point whether it can be closed.

The above is my experience in universal milling machine troubleshooting Of course, the machine tools usually need good maintenance to maintain the normal working state, which can not be ignored.

The view of mother's back

By Qingming Gao (CEO of Tengzhou Sanzhong Machinery Manufacture Co.,ltd)

May 14, 2017 is a #Mother'sDay, a great festival. The reason why it is called for the great festival is because the mother's greatness. Mother gave us life and nurtured us. Only mother's love is selfless, do not seek return, and mother can give her everything and even life for her children.

Early in the morning, I bought two boxes of honey and drove to my mother's house. My mother and I live in two different cities, but no matter how busy I am, I always go home. Every Sunday, mother would stand in front of the balcony waiting for her children to go home. Every time I see the view of my mother's back, I can remember many memories. Mother's figure has been strong and straight, but now it has become a curved back.I always think of a song "where did the time go": in front of the tree in the wood and long bud, flowering, life saved a lot of words, hidden in the white haired...... Where have all the time gone? Not a good look in your eyes just spent half a lifetime, it will only face wrinkles......

Although my parents are already 86 years old, but still very hard-working, every day is not idle. Look at my mom's garden. There are pomegranates, walnuts, apricot trees, and all have already turned out.

Even if there were only a few strawberries, my mother would have to wait for the children to come back and have a taste. This is her happiness. Do you taste sweet when you come back? Even if it is not sweet, we will say it is sweet, so we can see our mother's contented smile.

I said to my mother: "you work very hard, don't plant again, and you should enjoy the blessing." Mother always says, "we grow vegetables and fruits, so you can eat fresh food when you go home." 

I think that's what my parents think. They always want to leave the best for the children. There is an old saying in China: "son wants filial piety, but kisses not.". It means that now go to filial piety parents, do not regret for yourself. Filial piety culture is needed in the world. Wish the parents of the world healthy, long life and happiness!

Best wishes to all mothers!

#MothersDay

Integration of Internet and Machinery Manufacturing

 Internet in the world, the global economic development has gained a strong impetus, the degree of globalization has been deepened. While the convenience of human life is also greatly improved. The Internet achieves "zero distance" between different countries around the world.

Such as global exchange so that people enjoy the fun of global shopping. There is no doubt that this is the Internet's great contribution to mankind. Although there are questions about the globalization of the Internet, I think everything has two sides, like the human hand is also different on both sides. Therefore, how to avoid risks and disadvantages, to maximize the advantages of Internet globalization is particularly important.
With the continuous development of the

I am not a philosopher, no more philosophical talk. But I (Qingming Gao) was a man of the machinery manufacturing industry for 33 years. In the use of the Internet and related technologies, I feel that there are still many deficiencies.

The machinery manufacturing industry develops with each passing day. Only by improving ourselves can we survive and develop. I also want to use the Internet related channels, with more experts in terms of technology, marketing and management to communicate, to achieve win-win cooperation. Products are the best place to reflect the differences between companies. Our main products are universal milling machines, we hope and engineers around the world and traders to communicate, make universal milling machine have a greater breakthrough in technology, set up more sales channels in global wide range.

Mutual assistance, cooperation and win-win situation is my company has always insisted. We can see that the different countries in the world due to the different levels of development and the corresponding development needs are not the same. The rapid development of the US economy has also brought greater development to the world economy. The same since China's reform and opening up to our lives has brought great changes. But we can still see some underdeveloped countries and regions, industrial development is still relatively backward, or even stagnant.

Now the wave of industry 4.0 sweeps over. The machinery manufacturing industry have to move into a more advanced mode of development. Whether we can put the best design in some less developed countries or regions to produce, with interconnection to integrate the global machinery manufacturing industry. Underdeveloped countries or regions have access to job opportunities to enhance the level of industrial manufacturing, while the rest of the world to enjoy a better lower cost of the product. Let us all together, to play their respective advantages, to our products bring greater development.

Do you know the classification and difference of the knife handle?

#UniversalMillingMachine  #VerticalMillingMachine

The knife handle of the different milling machines is also different. Universal milling machines generally use the knife handle cone taper of 7:24.

First, the taper 7:24 general handle holders usually have five kinds of standards and specifications:

NT (traditional) (referred to as NT or ST)

DIN 69871 (German standard) (referred to as JT, DIN, DAT or DV)

IS0 7388/1 (International Standard) (referred to as IV or IT)

MAS BT (Japanese Standard) (BT)

ANSI / ASME (American Standard) (CAT)

NT-type tool holder German standard for the DIN 2080, is a universal milling machine through the rod will pull the knife handle, the domestic also known as ST;

The other four kinds of shanks are in the processing center through the handle of the tail of the pull the knife to tighten the handle. At present, the largest domestic use is DIN 69871 type (JT) and MAS BT type two kinds of knife handle. DIN type 69871 handle can be installed in the DIN type 69871 and ANSI/ASME taper of spindle of milling machines, IS0 7388/1 handle can be installed in the DIN type 69871, IS0 7388/1 and ANSI/ASME on a machine tool spindle taper. So in general terms, the IS0 7388/1 is the best.

★ Pull nails have three key parameters: θ angle, length l and thread G.

There are several cases about the angle of the shank:

1, MAS BT (Japanese standard) knife handle pull angle θ has 45 degrees, 60 degrees and 90 degrees of points, commonly used is 45 degrees and 60 degrees;

2, DIN 69871 knife handle nails (usually referred to as DIN 69872 - 40/50) θ angle is only a kind of 75 degrees;

3, IS0 7388/1 knife handle pull nails (usually called IS0 7388/2 - 40/50) θ angle of 45 degrees and 75 degrees;

4, ANSI/ASME (American Standard) knife handle pull angle θ 45 degrees, 60 degrees and 90 degrees.

For the thread G of the tool holder, except for ANSI / ASME (American standard), there are British thread standards for the handle screw, and the other three are made of metric threads. The 40 # handle is usually used M16 thread, 50 # knife Handle nails are usually used with M24 threads.

7:24 of the knife handle are:

JT series shank (ISO, German DIN standard, China GB standard)

BT series handle (Japan MAS standard)

JT-WA series handle (Germany VDI standard)

JT-U series shank (American ANSI standard)

CAT Series Tool Holder (American ANSI Standard - Caterpillar)

ST series handle (China GB standard)

SK series handle (German DIN standard)

NT is just our popular name, there are metric, imperial division of the points.General Japan NT is divided into NT (U) and NT (m). DIN2080 is metric. China's ST standard is in accordance with DIN2080 standard, so ST that NT (m) and DIN2080 can be common.

JT standard number is: GB10944. It is made with reference to DIN69871 / 1, and ISO7388 / 2 is common. DIN69871 general German abbreviation: SK. Three standard parameters are generic. So some people called JT, ISO, DIN, SK. As for DV, DAT those names, it is some companies take the name, not standardized.

Only by clearly understanding these specifications and standards, we can for the milling machine or universal milling machine to choose the right knife handle.

References:

https://en.wikipedia.org/wiki/Milling_(machining)

https://en.wikipedia.org/wiki/CNC_router

http://advancedmanufacturing.org/category/topics/machine-tools/ 

Talk about the production process of universal milling machine

#UniversalMillingMachine #VerticalMillingMachine

Universal milling machine production needs to go through many steps and a number of tests, the following I will come to a detailed description.

First, the casting blank into the factory through the material inspection: (1) size inspection; (2) material inspection; (3) appearance inspection. Qualified before they can enter the processing link. Parts of the processing must be in accordance with the processing technology to produce, to ensure that each component can be qualified to enter the assembly shop.

Then, scraping. It is very important to scratch the parts, scraping a good decision to determine a machine tool accuracy, feel, durability and so on. When we produce a universal milling machine, we need to ensure that there are 8-12 points per square inch for scraping parts. This milling machine is produced in the use of lubrication in order to be guaranteed.

To complete the above steps can enter the part of the link. In the installation to ensure that each component can be in place, every detail is very important. Such as bed loading, gear meshing, and transmission noise. If any one part of the problem, can not enter the machine together. The gear part of the universal milling machine is very complicated, only experienced technicians can be completed.

Machine tool can be qualified after the milling machine fit. When the milling machine is fit, the connection part of each part is the most important. This is also the most important part of the universal milling machine production. This is also on the universal milling machine production of the first few links is the basis for accurate judgments.

Once the milling machine has passed the preliminary inspection, it will enter the paint shop.

After painting can enter the machine state, which is a business in the production of universal milling machine is the details of the link, including a variety of inspection steps. Machine hardness inspection, hardness to reach 38-48; precision inspection and so on.

Any one of the details of materials should be elegant. And even cooling pipes must be strict requirements, cooling pipe inside the steel wire to be durable, not aging.

Universal milling machine production process is basically completed, we ushered in the customers’ inspection. Through field testing, the customers presented several details. We seized the time for the rectification, the customers are very satisfied with our products.

Before leaving the factory inspection.

Packaging delivery.(As the pictures show)

Through the strict norms of the production process to produce products in order to obtain market recognition. So that customer satisfaction is our greatest satisfaction.

References:

https://en.wikipedia.org/wiki/Milling_(machining)

https://en.wikipedia.org/wiki/Machine_tool

http://www.industryweek.com/technology/machine-tools

http://advancedmanufacturing.org/category/topics/machine-tools/

Will the universal milling machine be eliminated?

#UniversalMillingMachine  #VerticalMillingMachine

Here are some of my friends' questions on social media, I summarize here.

Friend asked: Do you think universal milling machine will be eliminated?

Answer: Yes, a product will not be eliminated first look at this product is not there are market demand. If a product has no market demand, then this product will certainly be eliminated.

Friend asked: If the universal milling machine was eliminated, then the manufacturers of these products do not collapse?

Answer: No. For any one product is not just a milling machine, enterprises according to market changes to change the product structure or performance to meet market demand. In addition, companies will continue to take the initiative to transform the product, so that products continue to upgrade to guide the development of the market.

Friend asked: According to your judgment, do you think the development of universal milling machine will continue for many years?

Answer: I'm sorry, I can not answer this question. A development of things will always go through a historical process. Like human life, God created mankind, but the length of each person's life is not the same, there are external factors also have their own problems. Like some countries and regions, the average life of about 50 years old, and some countries the average life expectancy can reach 70-80 years old. I think the product will be the same reason. Human beings will not perish for so long because mankind is evolving. I think a product can only continue to develop innovation will have lasting vitality.

Many products are not necessarily competing with the peer caused the product out, there may be the development of other industries to obliterate the product. For example, the development of digital cameras caused the film market has shrunk dramatically, and now the digital camera because of the development of smart phones caused by the market has become precarious.

Friend asked: Will you have a universal milling machine development?

Answer: Yes. Our company from 1999 to develop the first universal milling machine, we every year according to customer requirements and market demand for the development of new products. At present, with the development of industrial 4.0, automation, intelligent degree is getting higher and higher. The machine can replace people's work and will work with humans.

Friend asked: Do you say that the future machines will replace mankind?

Answer: This question can not answer. My personal point of view is not. If the machines are replaced by people, then what should man do? I have to work tomorrow, next time we chat again.We are currently seeking excellent engineers to cooperate to help us develop better products. Cooperation and win-win is our philosophy. Starting from the universal milling machine, we discussed other issues. Thank you for your concern.

Notes: May 6, 2017, at 1 am.