Stone Sphere Manufacturing: Processing Technology for Stone Sphere Surfaces

Processing Principle

Intersecting a sphere with any plane yields circles of varying diameters. The size of these circles changes with the distance of the cutting plane from the sphere's center. The circle that passes through the center has the largest diameter and is known as the great circle. Enveloping a series of circles, each at a constant distance from a fixed point (the center of the sphere), results in a sphere, with the surface formed being a spherical surface.

Processing Methods

1. Vertical Lathe for Internal Spherical Surfaces

For large diameter internal spherical surfaces, a vertical lathe can be used. By securing the tool and workpiece and adjusting the tool holder position, the cutting process can be completed automatically. This method is suitable for large diameter spherical surfaces.

2. Ordinary Lathe for Internal Spherical Surfaces

For small diameter internal spherical surfaces, processing can be done on an ordinary lathe. A specially designed device allows for the internal spherical surface to be machined. During the process, the workpiece rotates, and the tool moves horizontally, forming the spherical surface.

3. Diamond Cylinder Saw for External Spherical Surfaces

Using a diamond cylinder saw to process the external spherical surfaces of stone is a common method. Diamonds are embedded around the circumference of the cylinder end face. By adjusting the distance between the tool and the center of the spherical surface, spherical surfaces can be machined. The rotation of the tool and the stone blank work together to complete the machining of the spherical surface.

Key Points in Processing Technology

• Tool Selection: The thickness of the diamond cylinder saw's cutting head affects the efficiency.

• Tool Adjustment: Adjust the distance between the tool and the center of the spherical surface based on the size of the sphere required.

• Processing Control: Precise control of the rotation and feed movement of the tool and stone blank is essential for accurate machining of the spherical surface.

Conclusion

The key to the processing technology of stone spherical surfaces is selecting the appropriate processing method and tool and precisely controlling the machining process. Vertical lathes and ordinary lathes can be used for internal spherical surfaces, while diamond cylinder saws are suitable for external spherical surfaces. With these methods, stone spherical surfaces can be machined efficiently and accurately.