Sphere and machining method thereof

Abstract

The invention provides a sphere and a machining method thereof, and belongs to the technical field of machines. According to the sphere and the machining method thereof, the technical problems that inthe prior art, the grinding precision of the sphere is not high, and deviation of roundness exists are solved. According to the technical scheme, the sphere comprises a sphere body made of metal, a central hole is formed in the sphere body along any axis, and the two ends of the central hole penetrate through the sphere body. The machining method of the sphere comprises the steps that the lower end of a grinding sleeve is fixed to a mounting disc, the inner end of a supporting rod is inserted in the central hole of the sphere body, and the supporting rod and the sphere body are detachably fixed; and the sphere body is placed on the grinding sleeve, a first driving source is started to drive the grinding sleeve to rotate in the direction of the vertical axis, a second driving source is driven to drive the supporting rod to rotate in the direction of the horizontal axis, the supporting rod drives the sphere body to rotate synchronously, thus grinding movement with the perpendicularly staggered movement track is generated between the sphere body and the grinding sleeve, grinding is conducted till the outer spherical surface of the sphere body reaches the preset precision requirement,then grinding is stopped, and the sphere body is taken out and discharged.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a sphere and a processing method thereof. Background technique [0002] The ball mainly includes the spool of the ball valve. The spool of the ball valve generally has a central hole in the middle for assembly in the valve body of the ball valve. The spherical surface of the spool is in contact with the valve seat, and the function of opening and closing the ball valve is played by turning the spool. . The spherical surface of the valve core requires high precision in manufacturing, and it needs to be ground after rough machining to achieve higher precision and adaptability to the valve seat. In addition, the ball can also include other parts similar to this valve core structure but applied in other fields. [0003] The existing spherical grinding machine, such as a spherical automatic grinding machine disclosed in patent CN201420469091.9, includes a frame, a main shaft mechani...

AI Technical Summary

Problems solved by technology

[0004] However, there are some defects in the above-mentioned grinding machine. For example, the left and right grinding heads need to be used together, which makes the equipment more complicated. This will affect the processing accuracy, resulting in low precision of the ground ball and deviation in roundness, resulting in water leakage after the valve core and seat of the ball valve are matched.

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