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Do you know the advantages and disadvantages of five-axis cnc machining? Next, the Xiehe CNC processing factory will give you a brief introduction.

a. Rotate around the X axis to be the A axis

b. Rotate around the Y axis to be the B axis

c. Rotate around the Z axis to the C axis

Introduction of common five-axis machining centers: vertical five-axis machining center, horizontal five-axis machining center

For vertical five-axis machining centers, there are two types of rotary axes for this type of machining center, one is the rotary axis of the worktable. The worktable set on the bed can rotate around the X-axis, which is defined as the A-axis, and the general working range of the A-axis is +30° to -120°.

There is also a turntable in the middle of the workbench, which rotates around the Z-axis at the position shown in the figure, which is defined as the C-axis, and the C-axis is 360-degree rotation. In this way, through the combination of A-axis and C-axis, except for the bottom surface of the workpiece fixed on the worktable, the other five surfaces can be processed by the vertical spindle. The minimum division value of A-axis and C-axis is generally 0.001 degrees, so that the workpiece can be subdivided into arbitrary angles, and inclined surfaces, inclined holes, etc. can be processed.

Disadvantages: The workbench cannot be designed too large, and the load-bearing capacity is also small, especially when the A-axis rotation is greater than or equal to 90 degrees, the workpiece will bring a large load-bearing moment to the workbench when it is cut.

Advantages: The structure of the spindle is relatively simple, the rigidity of the spindle is very good, and the manufacturing cost is relatively low.

The other is to rely on the rotation of the vertical spindle head. The front end of the main shaft is a rotary head, which can circle the Z-axis 360 degrees by itself and become the C-axis. The rotary head also has an A-axis that can rotate around the X-axis, generally up to ±90 degrees, to achieve the same function as above.

Disadvantages: The workbench can also be designed to be very large, the body is huge, the rotation structure of the main shaft is relatively complicated, and the manufacturing cost is also high.

Advantages: The spindle processing is very flexible, and the design of the spindle rotation ensures a certain linear speed, which can improve the surface processing quality.

This structure is very popular for high-precision surface processing of molds, which is difficult for rotary machining centers with worktables.

Horizontal five-axis machining center, the rotary axis of this type of machining center also has two ways, one is that the horizontal spindle swings as a rotary axis, plus a rotary axis of the worktable, the spindle is vertically and horizontally converted to match the worktable Indexing, realize pentahedron processing on the workpiece.

Disadvantages: The rigidity of the main shaft is poor, but it does not perform linkage, which is suitable for different processing requirements of four-axis machining centers with vertical and horizontal conversion.

Advantages: easy and flexible processing, simple change of spindle vertical or horizontal rotation, low manufacturing cost, very practical.

The other is the traditional rotary axis of the worktable. The A-axis of the worktable set on the bed generally has a working range of +20° to -100°. There is also a turntable B-axis in the middle of the worktable, and the B-axis can rotate 360 degrees in both directions.

Disadvantages: The workbench is limited, the structure of the rotary shaft is relatively complicated, and the price is also expensive.

Advantages: The rotating shaft can also be equipped with circular grating scale feedback, and the indexing accuracy can reach several seconds. It is often used to process complex curved surfaces of large impellers.

The above content is the advantages and disadvantages of five-axis cnc machining, and I hope it can be helpful to everyone. If you want to know more about five-axis cnc processing, please call Xiehe cnc processing factory, we will serve you wholeheartedly.