What are the characteristics of precision parts machining? Five-axis machining center, is a kind of high technology, high precision, specifically for processing complex surface machining center, this kind of machining center system has a pivotal influence on a country's aviation, navigation, military, scientific research, precision instruments, high precision medical equipment and other industries.
I. What is a five-axis machining center
Five-axis simultaneous machining has the characteristics of high efficiency and high precision, and the workpiece can complete complex machining in one clamping. It can adapt to the processing of current molds such as auto parts and aircraft structural parts. There is a big difference between five-axis linkage machining center and five-face machining center. Many people do not know this, mistakenly five-axis machining center as a five-axis machining center.
Five-axis machining center has X, Y, Z, A, C five axes, XYZ and AC axis to form a five-axis linkage processing, good at space surface processing, shaped processing, hollowing processing, punching, oblique holes, oblique cutting, etc.. The "five-axis machining center" is similar to the three-axis machining center, except that it can do five surfaces at the same time, but it cannot do shaped machining, such as punching bevel holes, cutting bevels, etc.
In addition, the five-axis machining center is very wide range of application, it is understood that the current five-axis CNC machining center system is the only means to solve the impeller, blade, marine propeller, heavy generator rotor, automobile machine wheels, large diesel engine crankshaft and so on processing.
Second, the advantages of five-axis machining center
1、Reduce processing time and improve processing accuracy.
The most important feature of the five-axis machining center is that a one-time clamping can be processed on all five sides. It is also known as the processing angle avoidance. If it is a linkage machine, the C-axis can rotate without limit, and the A-axis can do about 130 degrees of rotation. These machine features allow machining without interference.
The advantage of this is that machining can be done in one clamping, i.e. avoiding the repeated positioning errors caused by multiple clamping. It also saves a lot of time and increases efficiency. It can reduce the time from product to shipment and reduce the amount of stock in the warehouse.
2、Reduce the investment cost of equipment, the area occupied by the workshop and the number of workshops.
Five-axis linkage machining center around the composite machining machine, usually with a car function, from even from lathe to milling machine to vertical grinding can be included in, we all know that the current price of vertical grinding equipment is very expensive, through the cost, processing beat and other accounting can be found five-axis cost-effective. Previously, we may produce and process mainly with engineering split type, the problem of such production method is that there is a large amount of waiting time can not be eliminated.
But the five-axis composite machining equipment represented by the engineering intensive production only need to wait for the initial commissioning time, and with the current popularity of various types of domestic machine simulation software, and even just need to import the blank data to complete the programming, but also can greatly reduce the preliminary preparation. So at present, foreign auto parts and high-end manufacturing are basically based on five-axis.
3、No special fixture is needed, and automation can be realized.
Another significant feature of five-axis is that the dependence on fixtures will be reduced, the regular workpiece can be clamped directly with three jaws and four jaws chucks, and the irregular workpiece can be clamped with two pins on one side. At the same time, five-axis machining center can realize the automation and less humanization of the factory. For example, the joints and bases of processing robots. Previously, it was a combination of horizontal and vertical machining, but now it only needs to use the zero-point pallet with the five-axis machining center to realize 24-hour running machining.