2MK7130B CNC Indexable Insert Peripheral Grinding Machine

The machine clamps the workpiece from the top end face, and the plane grinding wheel end face grinds the periphery of the blade. This five-axis CNC tool grinder is designed for precision machining of hard alloy and ceramic indexable inserts. Equipped with an automatic loading and unloading device, it enables one-clamping processing for:

• Peripheral contour machining
• Chamfering (single and double-sided)
• Rounding
• Peripheral curve machining for non-standard blades

Suitable for mass production, the machine can grind indexable inserts in various shapes such as triangles, squares, long diamonds, polygons, and circles according to national standards. Processing non-standard blades requires a special fixture. The machine uses the top end face to clamp the workpiece, and the plane grinding wheel end face completes the peripheral grinding. The system controls workpiece rotation, turntable rotation, and four-axis interpolation of the grinding head feed to realize the peripheral curve.  

Mechanical Configuration

• Linear axes (X, Y): Transverse and longitudinal grinding wheel feed driven by linear motors and roller guides, with full closed-loop control via grating rulers.
• Rotary axes: Workpiece spindle (B axis) and turntable rotation (C axis) driven directly by torque motors; circular grating ensures full closed-loop control.
• Automatic workpiece positioning mechanism driven by cylinder.
• Two length gauges for detecting workpiece shape and thickness accuracy.
• Multi-joint manipulator for automated loading/unloading.
• Equipped with an online grinding wheel cleaning device.

 

Electrical Configuration

CNC System: FAGOR 8070

Number of CNC Axes

• X axis: Transverse feed of the grinding wheel frame, absolute grating ruler full closed-loop control.
• Y axis: Longitudinal feed of the grinding wheel frame, absolute grating ruler full closed-loop control.
• B axis: Workpiece spindle rotary motion, full closed-loop control with absolute grating ruler.
• C axis: Rotary table motion, full closed-loop control with absolute grating ruler.
• W axis: Grinding wheel online cleaning feed motion with servo control.

 

Grinding Accuracy

Workpiece size accuracy	±0.01 mm
Profile error	0.01 mm
Cutting angle error	±10′
Surface roughness	Ra 0.4 μm