The usefulness and quality judgment of machining center

CNC milling machine is an automatic processing equipment developed on the basis of ordinary milling machine. The processing technology of the two is basically the same and the structure is similar. CNC milling machines are divided into two categories: no tool magazine and tool magazine. CNC milling machines with tool magazines are also called machining centers.

In addition to the characteristics of ordinary milling machines, CNC milling also has the following characteristics:

  • 1. Flexible handling of parts, can handle parts with particularly complex contours or difficult to control dimensions, such as modular parts, shell parts;
  • 2. It can handle parts that can not be processed or difficult to be processed by ordinary machine tools, such as complex curved parts described by mathematical models and surface parts in three-dimensional space;
  • 3. The parts can be processed after positioning operations after fastening and positioning;
  • 4. High-precision processing, stable and reliable processing quality, the pulse equivalent of the numerical control device is generally 0.001mm, and the high-precision numerical control system can reach 0.1μm. In addition, the control of processing numbers can also avoid operator error;
  • 5. High degree of production automation, which can reduce the operator’s work intensity. Suitable for automation of production management;
  • 6. High-efficiency CNC milling machines generally do not require the use of special accessories and other special process equipment. When replacing parts, it is only necessary to call the machining program stored in the numerical control device, clamp the tool, and adjust the tool data, which greatly shortens the production time. Cycle two, the CNC milling machine has the functions of drill bit, trampoline and drilling, the production process

High concentration greatly improves production efficiency. In addition, the speed of the spindle and the advancing speed of the CNC milling machine are infinitely variable, so it is beneficial to choose the optimal cutting amount.

I think a good machining center still has a price. This is not to say that the price is low, but to bring the value of the equipment to the customer at a certain price. We do not require the country to produce 45 million. The equipment can achieve the processing effect of millions of imported equipment, but at least the price is worth it. More general question, so the answer is not detailed, we will respond about 600,000 according to the home team. First, let me talk about the accuracy of the first two. I don’t think accuracy is a problem for current machining centers. Whether it is a national private service system or a private import system imported from abroad, micron accuracy is not a problem. Generally processing manufacturers can reach “silk” or 0.01 mm, which is good. Choose more expensive equipment. Therefore, accuracy is not the most important condition for judging the quality of equipment.

Second, I think it should be “stiff”. Compared to choosing “flexibility” as a machining center, you have to deal with flexibility, which means it can handle other models at any time, and I must say “rigid” means that it is consistent in quality when dealing with the same model Every product. For example, I want to make a hole with a diameter of 54 and a tolerance of ±0.05. The machining center is the first one, no problem, do it a second time. , Is out of brand, the third can be qualified again, the fourth and prejudice.

Many factories use machining centers to form flexible production lines to meet the needs of new products. However, if such a flexible pipeline is built in an old open factory, there is no constant temperature and humidity conditions. The product meets the requirements and the process requirements, reflecting the rigidity of the machine itself. It can be used in a certain temperature range, and the products manufactured by the machine tool can meet the process requirements. This is also a good deal. The requirements of the center.

The third thing I want to say is “design” or user experience. The machining center is also a machine. If the machine stops, it will be repaired, but how can it be repaired easily? I don’t use much German equipment, but it feels easy to use. When you have a repair and replacement piece, it never feels difficult to remove, even if it is a screw, let alone some fragile, easy to consume parts, “three easy minutes”, many domestic manufacturers often want netizens to express their opinions and deal with The design of the center is used to sell it to others, I said user reviews, this is bad, bad changes, users are not familiar with machine tools, ask the manufacturer, but many manufacturers do not know, the machining center is very designed and delivered produce. The department produces it and then sells it to users. The designer never personally operated the machine tool he designed. He never used it. How do I know when others use it? The design of a machining center that has not passed the test of time is not a good design. On the way home, I hope not to mention this. Later, I decided to ask this question to the subject, namely “leak”. Most of the machining I have seen is wet machining, and the cutting fluid is widely used. It involves water leakage. Don’t look at leaks as a minor issue, but I don’t think there are few new bed leaks. The staff who commissioned the new equipment said their goal this year was to prevent new bed leaks. Of course, this may be a joke. The 5 sets of 5 machine tools purchased at that time had leaks, and all the machines had liquids taken out of the machine or future problems. A batch of cardboard was processed to block it.

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