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Main Part Categories Suitable For Machining With Machining Center

The machining center is suitable for machining complex, numerous procedures, high requirements, requiring the use of multiple types of ordinary machine tools and numerous tool fixtures, and after multiple clamping and adjustment to complete the machining of parts. The main objects of its processing are five types: box parts, complex curved surfaces, special-shaped parts, disk sleeve board parts and special processing.

(1) Cabinet Parts

Box parts generally refer to parts with more than one hole system, a cavity inside, and a certain proportion in the length, width, and height directions. Such parts are used more in machine tool, automobile, aircraft manufacturing and other industries. Box parts generally require multi-position hole system and plane processing, and the tolerance requirements are high. In particular, the shape and position tolerance requirements are more stringent. Usually it has to go through milling, drilling, expanding, boring, reaming, countersinking, tapping and other processes, which requires more tools. It is difficult for workers to process on ordinary machine tools. Consumption costs and processing cycles increase. It requires multiple clampings and many measurement times. The tool must be changed frequently during machining. More importantly, accuracy is difficult to guarantee.


the bearing needs to push and pull more than 2 tons of load

Machining center for processing box parts. When there are many processing stations and parts that require multiple rotations of the worktable, horizontal boring and milling machining centers are generally selected. When the processing stations and spans are small, a vertical machining center can be selected to process from one end.

(2) Complex Surfaces Parts

Complex curved surfaces occupy a particularly important position in the machinery manufacturing industry, especially in the aerospace industry. Complex surfaces are difficult or impossible to accomplish with ordinary machining methods. In China, the traditional method is to use precision casting, which is conceivable that its less-accuracy . Complex curved surface parts such as: various impellers, wind guide wheels, spherical surfaces, various curved surface forming dies, propellers and propellers of underwater vehicles, and some other free-form surfaces These parts can be machined with machining centers. The following are typical:

① Cam, cam mechanism

As the basic element of mechanical information storage and transmission, it is widely used in various automatic machines. This type of part has various curved disc cams, cylindrical cams, conical cams, barrel cams, end cams, etc. Machining such parts can choose three-axis, four-axis linkage or five-axis linkage machining center according to the complexity of the cam.

② Overall impeller

Such parts are commonly used in compressors for aero-engines, expanders for oxygen plants, and single-screw air compressors. For such a profile, a machining center with more than four axes can be used to complete it.

③Mould

Such as injection mold, rubber mold, vacuum forming plastic mold, refrigerator foam mold, pressure casting mold, precision casting mold, etc. The machining center is used to process the mold. Due to the high concentration of procedures, the finishing of key parts such as moving molds and static molds basically completes all machining contents in one installation. This can reduce the cumulative size error and reduce the amount of repair work. At the same time, the mold is highly reproducible and interchangeable. Mechanical processing leaves less work for the fitter, and it is done as much as possible by machining. In this way, the workload of the mold fitter is mainly polishing.

④Spherical

Milling with machining center is available. For three-axis milling, only ball-end milling cutters can be used for approximation processing, and the efficiency is low. For 5-axis milling, an end mill is used as the envelope surface to approach the spherical surface. When machining complex surfaces with a machining center, the programming workload is large. Most require automatic programming techniques

(3) Shaped pieces

Special-shaped parts are irregular shaped parts, and most of them need to be mixed processing of points, lines and surfaces. The rigidity of special-shaped parts is generally poor, and it is difficult to control the compression deformation. It is also difficult to guarantee machining accuracy. 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 adopted. Utilize the characteristics of multi-station point, line and surface mixed processing in the machining center to complete multiple processes or all process contents.


(4) disc, sleeve, plate parts

With keyway, or radial holes, or a hole system with a distributed end surface, a curved disk sleeve or shaft parts. Such as shaft sleeves with flanges, shaft parts with keyways or square heads, etc. There are also plate parts with more porous processing, such as various motor covers. Disk parts with distributed holes and curved surfaces on the end should choose vertical machining centers. Optional horizontal machining center with radial holes.

(5) Special Processing

After mastering the functions of the machining center, they will cooperate with certain tooling and special tools. The machining center can be used to complete some special craft work, such as lettering, engraving, and engraving on the metal surface. The high-frequency EDM power supply is installed on the spindle of the machining center, which can perform line-scanning surface hardening on metal surfaces. With a high-speed grinding head mounted on a machining center, grinding of small-modulus involute bevel gears and grinding of various curves and surfaces can be realized.

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