- The market demand for some products of parts suitable for processing periodic composite production is cyclical and seasonal, if the use of specialized production lines, the efficiency of processing with ordinary equipment is too low, the quality is unstable, the quantity is difficult to guarantee. And the use of the first piece of the processing center after the trial cut, procedures and related production information can be retained, the next time the product re-production as long as a very ready time can start production.
- Suitable for machining high-efficiency, high-precision parts some parts need very little, but is a key component, requires high precision and short duration. With the traditional process needs to use more than one machine tool to coordinate the work, long cycle, low efficiency, in the long process process, the human impact of easy waste, resulting in major economic losses. , and the use of processing center for processing, production is completely controlled by the program automatically, avoiding long process, reducing hardware investment and human interference, with high production efficiency and stable quality advantages.
- Suitable for workpieces with suitable batch
The flexibility of processing center production is not only reflected in the rapid response to special requirements, but also can be achieved rapidly in mass production, with and improve market competitiveness. Processing center is suitable for small and medium-sized production, especially small-scale production, in the application of processing center, as far as possible to make the batch is greater than the economic batch, in order to achieve good economic results. With the continuous development of processing centers and accessories, the economic batch is getting smaller and smaller, for some complex parts, 5-10 pieces can be produced, and even a single piece of production can also be considered processing center.
- Suitable for machining complex-shaped parts
The application of four-axis linkage, five-axis linkage processing center and the mature development of CAD/CAM technology have greatly increased the complexity of the processed parts. The use of the DNC makes the processing content of the same program sufficient to meet various processing requirements, making it easy to automate the machining of complex parts.
- Other features
The machining center is also suitable for machining multi-station and process-focused workpieces, and difficult to measure workpieces. In addition, the clamping difficulties or completely correct positioning to ensure the accuracy of the processing of the workpiece is not suitable for production in the processing center.
The characteristics of the processing process of processing towel heart
Compared with ordinary machine processing, the processing center has many remarkable process characteristics.
1 Wide range of process, can process complex surfaces
As with CNC milling machines, the machining center can also realize multi-axis linkage and easy to achieve many ordinary machine tools difficult to complete or can not be processed, the processing of space curves, surfaces, greatly increased the process range of the machine tool.
2 Highly flexible, easy to develop and develop new products
The so-called flexibility is “flexible”, “variable”, is relative to “rigid” in terms of. In the past, many enterprises used combination machine tools, special machine tools for efficient, automated production, but these combination machine tools, special machine tools are specifically designed for a certain part of a process, suitable for the product stable mass production, can not adapt to multi-variety, small-scale production. Now, even large-scale production of products, varieties of many years of unchanged history has been gone, once the variety changes, these combination of machine tools, special machine tools can not be used, combination machine tools, special machine tools are less and less applications, is being replaced by numerical control equipment. General mechanical shape processing machine tools can process some more complex parts, but after the product variant, must be re-designed and manufactured cams, molds, models or drill molds, production preparation cycle is longer. And the machining center when the processing object changes, only need to change the machining procedures, adjust tool parameters, etc. can be new parts processing, production preparation cycle greatly shortened, to the development of new products to improve, change providead a shortcut. At the same time, because the processing center has automatic tool change function, right processing a variety of different kinds of parts, a variety of surface aspects than CNC milling machine has an advantage.
3 High processing accuracy and good surface quality
The processing parts are consistent and good, the quality is stable, the pulse equivalent of the processing center is generally l?m, high-precision processing center can reach. Its motion resolution is much higher than that of a normal machine tool. Processing centers use semi-closed or even fullclosed ring position compensation function, has a higher positioning accuracy and repeated positioning accuracy, in the process of processing the size error can be compensated in time, can obtain a higher dimensional accuracy;
In addition, the whole processing process of the processing center by the program automatically controlled, not affected by the human factors of the operator, at the same time, no cam, mold and other hardware, eliminating the error caused by wear and tear in manufacturing and use, coupled with the machine tool position compensation function, high positioning accuracy and repeated positioning accuracy, the processing of parts size consistency is good. This is particularly beneficial for batch and mass production.
(4) High productivity
The machining time of the part includes the maneuvertime and auxiliary time, and the machining center can effectively reduce the time of both parts. Processing center stiffness, power, spindle speed and feed speed range is large and non-grade variable speed, so each process can choose a larger and reasonable cutting dosage, reduce the motor time, processing center processing can be in a clamp to process a lot of parts to be processed, eliminating the general machine machine processing of many of the original intermediate processes (such as dashing, inspection, etc.). The processing center has the functions of automatic speed change, automatic knife change and other auxiliary operation automation, which greatly shortens the auxiliary time. Therefore, it is 3 to 4 times higher than the production efficiency of ordinary machine tools, and its production efficiency can be increased ten times or even dozens of times for the processing of complex surface parts. In addition, the parts processed by the machining center also bring many conveniences for subsequent operations (e.g. assembly, etc.) and are more efficient in their overall integration.
(5) Reducing the intensity of manual labour of workers
In general, the operator only needs to observe and monitor the operation of the machine next to the machine, in addition to do some loading and unloading parts and replacement of the tool work. Of course, the processing center operator’s mental labor intensity increases accordingly, to deal with many of the common machine tool processing rarely seen in the mathematical problems, CNC processing program problems, microelectronics problems, information problems, automatic control technology application problems.
(6) One-machine multi-use
Processing center with more than one ordinary machine tool function, can automatically change the knife, once clamped, almost all processing parts can be completed
(7) Easy to implement computer-aided manufacturing
Computer-aided design and manufacturing (CAD/CAM) has become the only way to modernize the aerospace, automotive, marine and various machinery industries. The most effective way to turn the product drawings and data designed with computer aid into the actual product is to use computer-aided manufacturing technology to directly manufacture components. Processing center and other numerical control equipment and its processing technology is the basis of computer-aided manufacturing system.