Apparatus and method for machining cylindrical grooves by multi-wire cutting of profiles

A method for machining cylindrical grooves by multi-wire cutting of profiles, comprising:

• S1. positioning and aligning a workpiece and a cutting wire and presetting a benchmark
• assembling the workpiece on a clamping assembly, the cutting wire sequentially wound in annular grooves of a driving guide roller, a tension wheel and a driven guide roller, the cutting wire forming a parallel wire group mesh surface between the driving guide roller and the driven guide roller, wherein each cutting wire forming the wire group mesh surface is perpendicular to a central axis of the workpiece;
• S2. adjusting a pressure of the cutting wire
• by adjusting a first wedge block and a second wedge block disposed on the frame, a tension wheel moving up and down to change distances between the tension wheel and the driving guide roller and between the tension wheel and the driven guide roller to become larger or smaller, so as to realize a fine adjustment of tensioning or relaxing the cutting wire and further adjust the pressure of the cutting wire on a surface of a workpiece to be machined;
• S3. machining a groove of the workpiece by the cutting wire
• starting the driver, and a relative movement of the cutting wire realizing the machining of the groove of the workpiece;
• wherein a workpiece driver and a screw driver respectively drive a rotating movement and up-and-down movement of the workpiece;
• and the driving guide roller driver drives the driving guide roller to rotate, a releasing driver and a retracting driver are configured to drive a releasing wheel and a retracting wheel to rotate, so as to realize releasing and retracting of the cutting wire, the driven guide roller and the tension wheel are driven to rotate through a movement of the cutting wire and a rotation transmission of the driving guide roller, and a cutting wire speed is 0.1 m/s to 30 m/s.