Abrasive machininging method for ball end mill and four-shaft linkage equipment for abrasive machininging

Abstract

The invention discloses a method for grinding and machining a ball-nose end milling cutter and a four-axis coordinated grinding and machining device. In the grinding process, on the one hand the device leads a grinding wheel (8) to do rotary motion around a spindle and leads the ball-nose end milling cutter (9) to rotate around an axis X, on the other hand, the device leads the ball-nose end milling cutter (9) to translate along the axis X, at the same time, the device leads the ball-nose end milling cutter (9) to move along a horizontal axis Y which is vertical to the axis X and to move along an axis Z which is vertical to the axis X and the axis Y, thus forming the four-axis coordinated grinding and machining. The invention can clamp and grind as well as machine the ball-nose front knife surface and the circum front knife surface of the ball-nose end milling cutter in one time, thus realizing the grinding of all front and back knife surfaces on one special purpose machine tool. Compared with a five-axis coordinated machining center, one rotation axis is reduced in the grinding device of the invention, thus leading to simpler machine tool structure, ensuring precision among moving parts and effectively reducing the equipment cost.

Description

technical field [0001] The invention relates to a processing method and processing equipment for a ball end mill, in particular to a grinding method for a ball end mill and four-axis linkage equipment for grinding. Background technique [0002] Ball end milling cutter is a kind of cutting tool for processing complex curved surface on CNC machine tools, which is widely used in mold manufacturing, automobile manufacturing, aerospace, electronic communication product manufacturing and other industries. Grinding of the groove and flank of the ball end mill is the key process in the production of the ball end mill. [0003] At present, there are mainly two types of grinding methods for ball end mills: one is to use four-axis linkage following simple grinding equipment for sharpening, and the ball end mills produced by the grinding process have the following problems: ( 1) The rake face of the ball blade and the rake face of the peripheral blade cannot be processed at one time, r...

AI Technical Summary

Problems solved by technology

[0003] At present, there are mainly two types of grinding methods for ball end mills: one is to use four-axis linkage following simple grinding equipment for sharpening, and the ball end mills produced by the grinding process have the following problems: ( 1) The rake face of the ball blade and the rake face of the peripheral blade cannot be ground at one time, resulting in a step at the connection between the two

(2) The rake face and flank face of the ball end mill are completed on different grinding equipment; (3) The shape and geometric parameters of the ball end mill produced by grinding are unreasonable

The five-axis linkage of this type of grinding machine tool adopts the linkage between two rotating axes and three moving axes. The equipment design is complicated, the equipment manufacturing precision is high, and the manufacturing difficulty is increased, resulting in high equipment prices.

The investment in purchasing this type of equipment is large, resulting in high production and sharpening costs for ball end mills

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