As we all know, CNC machining centers are suitable for complex machining, multi-process, high requirements and high demands, various types of ordinary machine tools and various fixtures, and parts that require multiple clamping and adjustments. Its processing objects are mainly box parts, complex surfaces, special-shaped parts, composite plate parts and CNC machining.
(1) Box parts
Box-type parts generally refer to parts with a porous system, an inner cavity and a certain ratio of length, width and height. Such parts are mainly used in machine tools, automobiles, and aircraft manufacturing industries. Box-type parts generally require multi-station hole making and plane processing, and have high tolerance requirements, especially the geometric tolerance requirements are relatively strict. They usually go through milling, drilling, expanding, boring, reaming, spot welding, tapping and other processes that require more tools. The machining center is used to process the box parts. When there are multiple machining stations and the parts can only pass through the work, the boring and milling machining center is generally selected.
(2) Complex surfaces
Complex surfaces play a very important role in mechanical manufacturing, especially in the aerospace industry. Using common machining methods, it is difficult or even impossible to complete complex surfaces. In my country, the traditional casting method is precision casting, which is conceivably less accurate. Complex surface parts.
(3) Special-shaped parts
Special-shaped parts are irregular parts, most of which require multi-station mixed processing of point, line and surface. The rigidity of special-shaped parts is generally poor, the clamping deformation is difficult to control, the machining accuracy is difficult to guarantee, and even some parts of some parts are difficult to complete with ordinary machine tools. When processing with a machining center, reasonable technological measures should be taken, and one or two clampings should be performed. The mixed processing characteristics of the machining center have multiple stations and can complete multiple or all processes.
(4) Discs, sleeves and plates
For disc-shaped parts with keyway or radial hole or distributed hole system, curved disc sleeve or shaft zero, such as flanged sleeve, keyway or square head shaft type parts and multi-hole machining plates, vertical machining centers should be selected, such as For disc parts with distributed holes and curved surfaces on the end faces of various motors, a horizontal machining center with radial holes should be selected.
(5) Test pieces of new products
The machining center has wide adaptability and high flexibility. When changing the processing object, CNC processing can be realized by compiling and inputting a new program.