A lathe with a diameter of 4.5 m was transformed using the x and z two-axis CNC machining method linked with the main shaft, and then the CNC machining of the rope groove of the broken line reel was carried out according to the design of the broken line reel.
What is introduced here is the CNC machining method for the x and z axes to be linked with the spindle. The principle is shown in the figure below. The principle is basically the same as that of the z-axis with the spindle CNC machining. The difference is that the system adds an x-axis motor and driver to realize the automatic feed movement of the tool holder and the tool in the x direction, thereby realizing the automatic x direction in the processing process. Feed function.
During processing, the reel is rotated by the spindle motor of the original machine tool. The numerical control system obtains the position of the reel on the circumference through the spindle encoder and the spindle zero switch according to the corresponding numerical control program, and drives the z-axis and x-axis motors to move at the same time. The two-axis differential compensation linkage of the x and z axes changing with the angular displacement of the main shaft is realized, and the numerical control processing of the rope groove of the broken line reel can be realized.
This method has a high degree of automation, can realize the automatic feed and retreat control of the x-direction, no manual control is required, and the automatic numerical control processing of the broken line rope groove is realized. The equipment transformation is simple and the cost is low.
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