With the development of numerical control technology, multi-axis numerical control machining centers are getting more and more widely used. CNC machining technology, as the basis of modern machinery manufacturing technology, has made a significant change in the mechanical manufacturing process. Compared with traditional processing technology, modern NC machining technology has significant differences in many aspects such as processing technology, process control, processing equipment, and process equipment. The CNC machine tool we are familiar with has XYZ three linear axes, and multi-axis means that there is at least a 4th axis on a machine tool. Usually referred to as multi-axis NC machining refers to more than 4 axes of NC machining, of which 5 is typical for CNC machining. Multi-axis CNC machining can control the linkage of more than 4 coordinate axes at the same time, and combine the functions of CNC milling, numerical control boring, and numerical control drilling. After a workpiece is clamped, it can perform milling, boring, drilling and other operations on the processing surface. The processing effectively avoids the positioning error caused by multiple installations, shortens the production cycle and improves the processing accuracy. With the rapid development of mold manufacturing technology, higher requirements have been placed on the machining capacity and processing efficiency of the machining center, so multi-axis NC machining technology has achieved unprecedented development.
Features of multi-axis machining (1) Reduce the datum conversion and improve machining accuracy.
The process integration of multi-axis NC machining not only improves the effectiveness of the process, but also because the parts need only to be clamped once during the entire machining process, and the machining accuracy is more easily guaranteed.
(2) Reduce the number of fixtures and floor space.
Although the cost of a single unit in a multi-axis CNC machining center is relatively high, the number of fixtures, floor space, and equipment maintenance costs are also reduced due to the shortened process chain and the reduction in the number of equipment.
(3) Shorten the production process chain and simplify production management.
The complete processing of multi-axis CNC machine tools has greatly shortened the production process chain, and since only the processing task is given to one job, not only the production management and the planning and scheduling are simplified, but also the transparency is significantly improved. The more complex the workpiece is, the more obvious it is to the advantages of a traditional process. At the same time, due to the shortening of the production process chain, the quantity of work in process will inevitably decrease, which can simplify the production management, thereby reducing the cost of production operations and management.
(4) Shorten new product development cycle.
For companies in the aerospace, automotive and other fields, the shape of some new product parts and molding dies is complex and the precision requirements are high. Therefore, a multi-axis CNC machining center with high flexibility, high precision, high integration, and complete machining capability can be used. It solves the problem of the precision and cycle of complex parts processing in the new product development process, greatly shortens the development cycle and improves the success rate of new products.
Multi-axis Machining Advantage Multi-axis CNC machining center has the characteristics of high efficiency and high precision. The workpiece can be processed in five planes after one clamping. If a 5-axis linkage high-end numerical control system is configured, high-precision processing of complex space surfaces can also be performed, and it is very suitable for processing forming dies of automotive parts and aircraft structural parts.
Its greatest advantage is that the processing of the original complex parts becomes much easier, and the processing cycle is shortened, and the surface machining quality is improved. The improvement of product quality will increase the product performance requirements. If a dual-turntable 5-axis linkage machine tool is used, due to the special optical effect requirements of the headlight mold, many small surfaces for reflection have very high indexes for the accuracy and finish of the processing. Requirements, especially finish, almost require a mirror effect. The use of high-speed cutting technology equipment and five-axis linkage machine tool with a spherical cutter to cut out the effect of the mirror, it becomes easy, and past relatively backward processing methods are almost impossible to achieve. The use of five-axis linkage machine tool processing mold can quickly complete the mold processing, fast delivery, better guarantee the quality of the mold processing, make mold processing easier, and make mold modification easier. In the traditional mold processing, the vertical machining center is generally used to complete the milling of the workpiece. With the continuous development of mold manufacturing technology, some weaknesses of the vertical machining center itself have become increasingly apparent. Modern mold processing generally uses ball-end milling cutters for machining. The advantages of ball-end milling cutters in mold processing are obvious. However, if a vertical machining center is used, the linear velocity of the bottom surface is zero, so that the bottom surface finish is poor. If you use four or five axis linkage machine tool processing technology to mold, you can overcome the above deficiencies.
Features of multi-axis machining (1) Reduce the datum conversion and improve machining accuracy.
The process integration of multi-axis NC machining not only improves the effectiveness of the process, but also because the parts need only to be clamped once during the entire machining process, and the machining accuracy is more easily guaranteed.
(2) Reduce the number of fixtures and floor space.
Although the cost of a single unit in a multi-axis CNC machining center is relatively high, the number of fixtures, floor space, and equipment maintenance costs are also reduced due to the shortened process chain and the reduction in the number of equipment.
(3) Shorten the production process chain and simplify production management.
The complete processing of multi-axis CNC machine tools has greatly shortened the production process chain, and since only the processing task is given to one job, not only the production management and the planning and scheduling are simplified, but also the transparency is significantly improved. The more complex the workpiece is, the more obvious it is to the advantages of a traditional process. At the same time, due to the shortening of the production process chain, the quantity of work in process will inevitably decrease, which can simplify the production management, thereby reducing the cost of production operations and management.
(4) Shorten new product development cycle.
For companies in the aerospace, automotive and other fields, the shape of some new product parts and molding dies is complex and the precision requirements are high. Therefore, a multi-axis CNC machining center with high flexibility, high precision, high integration, and complete machining capability can be used. It solves the problem of the precision and cycle of complex parts processing in the new product development process, greatly shortens the development cycle and improves the success rate of new products.
Multi-axis Machining Advantage Multi-axis CNC machining center has the characteristics of high efficiency and high precision. The workpiece can be processed in five planes after one clamping. If a 5-axis linkage high-end numerical control system is configured, high-precision processing of complex space surfaces can also be performed, and it is very suitable for processing forming dies of automotive parts and aircraft structural parts.
Its greatest advantage is that the processing of the original complex parts becomes much easier, and the processing cycle is shortened, and the surface machining quality is improved. The improvement of product quality will increase the product performance requirements. If a dual-turntable 5-axis linkage machine tool is used, due to the special optical effect requirements of the headlight mold, many small surfaces for reflection have very high indexes for the accuracy and finish of the processing. Requirements, especially finish, almost require a mirror effect. The use of high-speed cutting technology equipment and five-axis linkage machine tool with a spherical cutter to cut out the effect of the mirror, it becomes easy, and past relatively backward processing methods are almost impossible to achieve. The use of five-axis linkage machine tool processing mold can quickly complete the mold processing, fast delivery, better guarantee the quality of the mold processing, make mold processing easier, and make mold modification easier. In the traditional mold processing, the vertical machining center is generally used to complete the milling of the workpiece. With the continuous development of mold manufacturing technology, some weaknesses of the vertical machining center itself have become increasingly apparent. Modern mold processing generally uses ball-end milling cutters for machining. The advantages of ball-end milling cutters in mold processing are obvious. However, if a vertical machining center is used, the linear velocity of the bottom surface is zero, so that the bottom surface finish is poor. If you use four or five axis linkage machine tool processing technology to mold, you can overcome the above deficiencies.
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