Turning device for machining inner and outer ball surfaces and machining method

Abstract

The invention discloses a turning device for machining inner and outer ball surfaces. The turning device for machining the inner and outer ball surfaces comprises a square table used for being locked onto a turning lathe and making an included angle theta formed between a transmission shaft and a turning lathe main shaft, a rotating mechanism and a connection rod, wherein one end of the connection rod is fixedly connected with the transmission shaft, the other end of the connection rod is driven by the transmission shaft to rotate around the transmission shaft, and the connection rod is provided with a tool bar and a tool. The invention discloses a method for machining the inner and outer ball surfaces. The method includes the following steps that the square table is locked on the turning lathe, and the included angle theta is made to be formed between the transmission shaft and the turning lathe main shaft; the tool bar obliquely moves in the direction of the included angle theta; a to-be-machined workpiece rotates around the main shaft; and meanwhile, a worm and worm gear mechanism is used for driving the transmission shaft to rotate, and a tool point of the tool is made to rotate in a plumb plane which moves perpendicular to the inclined direction. The turning device for machining the inner and outer ball surfaces is wide in machining range, the ball surfaces different in radius and bottom face height can be machined by using connection rods and tool bars different in length, and the inner and outer ball surfaces can be machined on the same device by changing the relative positions of the connection rod and the tool bar.

Description

technical field [0001] The invention relates to a turning device and a processing method for processing inner and outer spherical surfaces, belonging to the technical field of spherical processing Background technique [0002] In mechanical equipment, there are often parts with inner and outer spherical or arcuate shapes. It is difficult to guarantee the machining accuracy of the spherical shape when processing these parts with ordinary machine tools. The spherical surface is processed on the lathe, one is the forming tool processing method, the turning tool is ground into the shape of the spherical arc to be processed, and it is directly processed on the lathe, but it is only suitable for the spherical surface with a small radius. The other is to cut the spherical surface by the cooperation of the main movement of the machine tool and the manual feed movement of the operator. The technical requirements for the operator are very high. The roundness of the processed spherical...

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Problems solved by technology

The other is to cut the spherical surface by the cooperation of the main movement of the machine tool and the manual feed movement of the operator. The technical requirements for the operator are very high. The roundness of the processed spherical surface is poor, and there is at least a shape of 0.05-0.10mm. Error, can not meet the accuracy requirements of the parts, can not meet the use requirements

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