Machining tool for eccentric ring groove and machining method

Abstract

The invention discloses a machining tool for an eccentric ring groove and a machining method, and belongs to the field of machining. When the eccentric ring groove in the end surface of a rotating body part is machined, a cylindrical cutter handle is rotated around the axis of the cylindrical cutter handle while the cylindrical cutter handle is fed in the axial direction of the cylindrical cutterhandle. A blade can directly carry out feeding and rotating on the end surface of the rotating body part, and the roughly-machined eccentric ring groove is obtained in the end surface of the rotatingbody part. A first sliding block is controlled to slide along a linear sliding groove in a connecting plate so that the cylindrical cutter handle can rotate around the axis of the cylindrical cutter handle, and the blade successively performs finish machining on the inner wall and the outer wall of the roughly-machined eccentric ring groove, and the eccentric ring groove is obtained. A cutter clamp extends out of a joint in the axial direction of the cylindrical cutter handle, and the blade extends out of the cutter clamp, so that the joint and the cutter clamp do not affect the machining of the end surface of the rotating body part by the blade. The cutting speed of the blade is the rotating line speed of the blade, the rotating line speed of the blade is greater than the rotating line speed of the cylindrical cutter handle, and the machining efficiency of the eccentric ring groove is greatly improved.

Description

technical field [0001] The invention relates to the field of machining, in particular to a machining tool and a machining method for an eccentric ring groove. Background technique [0002] Rotary parts are very common mechanical structures. Some rotative parts have eccentric ring grooves on their end faces to cooperate with other structures. The axes of the eccentric ring grooves do not coincide with the axes of the revolving parts. Since the axis of the eccentric ring groove does not coincide with the axis of the rotating body part, such an eccentric ring groove is difficult to process with a lathe, and is usually processed by a cylindrical end mill on a milling machine. [0003] When the milling machine processes the eccentric ring groove, it usually first controls the end mill to advance to the end face of the rotary part, and controls the end mill to rotate around the axis of the end mill while controlling the end mill to be on the end face of the rotary part. Follow th...

AI Technical Summary

Problems solved by technology

[0004] However, in this processing method, the eccentric ring groove is cut by friction on the outer wall of the end mill, and the effective cutting speed (ie, feed rate) of the end mill for the eccentric ring groove is much smaller than the rotation line of the point on the outer wall of the end mill speed, the machining efficiency of the eccentric ring groove is low

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