Compound machining of turning and milling
By jett NG | 02 July 2021 | 0 Comments

Compound machining of turning and milling

Compound machining of turning and milling




Ø Introduction to C&Y Axis Machining


Ø C&Y axis turning and milling compound machining


Ø Double tool rack processing









Introduction to C&Y axis machining


C&Y axis machining is a machining method that achieves axial and radial machining by using C axis and Y axis.


C axis processing


Y processing


CX shaft processing


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C&Y axis turning and milling compound machining example

C&Y axis turning and milling compound machining programming process




Adjust coordinate origin


Find machining features


Create part blanks




Y axis milling


C axis milling processing


Cylindrical turning


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Double tool rack processing


Double tool holder machining is a kind of machining method which uses upper and lower tool holder to turn workpiece at the same time.


Synchronous thick car outside the circle


Asynchronous thick car outside the circle


Synchronous straight car


Asynchronous direct car


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Y axis machining and CX axis machining


Ø Y axis machining and CX axis machining is the most commonly used turning and milling compound machining method.


Ø For the machine tool equipment without Y axis, Y axis machining can be achieved by CX axis linkage fitting


But does not apply to all parts.


Ø CY axis machining and CX machining will not exceed three-axis linkage, but 5-axis machining is often used


Working method.


Ø Select different machining methods for different parts.


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Y axis /CX axis machining parts classification


According to the movement of the machine tool during processing and programming mode, Y axis /CX axis processing parts usually can be divided


There are four types as follows:


Y axis processing parts


CX axis processing parts


CY/CX axis machining parts


Rotating milling parts


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Y axis processing parts


Typical Y-axis machined parts, radial (flat bottom) type


Characteristics of cavity. C axis is not linked in the processing process, and XYZ is used


Three axis linkage can complete the processing.


Processing method: ordinary three - axis milling processing method




Ø The Y-axis must be used to complete the machining of this part.


Have high requirements for equipment.


Ø Can not use CX axis linkage to fit Y axis machining, no


Ensure the shape of the side wall of the cavity.


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CX axis processing parts


Typical CX axis machined parts have a radial groove bottom surface of a circle


Cylindrical surface, and coaxial with the rotation axis of the part. In the process


C axis linkage is required without Y axis movement.


Processing method: five axis processing method




Ø Without Y axis participation, CXZ linkage is used to achieve the purpose of machining.


Ø Although the movement of the machine tool is simple, it needs to use five axes when programming


Processing method.


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CY/CX axis machining parts


Tie irregular curved surface of the rotary body type parts, can make


Machining with CX axis or CY axis linkage.


Processing method: five axis processing method


CY axis machining: the ordinary five-axis machining method can generate the knife


Path. The Y axis floats on its own according to the surface shape of the part.


CX axis machining: in the parts to make a rotation shaft with the parts


A coaxial cylinder, which is used as a machining driving surface


The tool path is returned to the outer surface of the part to achieve CX axis machining.




When machining the local shape with CX axis, it is impossible to make and


Therefore, CX axis machining cannot be realized at this time.


It can only be processed with CY axis.


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Rotating milling parts


Typical four axis rotary milling parts. In programming, can


Make a contour on the radial surface of the part, and then wrap the contour


Wrap to the surface of the part and use it as the machining drive line. programming


The tool path can be generated by a single drive line.


Processing methods: contour milling, keyway milling and other processing methods.




Ø When programming, the machining mode should be switched to the rotary mode.


Ø CX axis linkage processing, three axis processing method.


Ø Processing objects can only be wound after the line, usually used


In the fields of milling thread, radial lettering, etc.



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