Internal intersecting line fillet machining method

Abstract

The invention relates to an internal intersecting line fillet machining method. The method comprises the following steps that 1), modeling is conducted, a main channel hole and a lateral hole intersect to form an internal intersecting line, and the outer end of the lateral hole penetrates through a base body; 2), chamfering is conducted along an internal intersecting line so as to form a to-be-machined space curved surface; 3), a first coordinate system for generating a tool machining path and a second coordinate system for post-processing to generate a machining program are established; 4), a base body part above a Z-axis zero point of the first coordinate system is removed; 5), a tool machining track of the space curved surface is generated according to the first coordinate system, wherein a tool is an end milling tool; 6), post-processing is conducted the tool machining track according to the second coordinate system; and 7), a T-shaped groove milling tool is used during actual machining, X-direction and Y-direction zero points are set on numerical control equipment corresponding to a zero point of the second coordinate system, the Z-direction zero point of the tool is set on the upper surface of a disc of the T-shaped groove milling tool, and the outer diameter of the disc of the T-shaped groove milling tool corresponds to the outer diameter of the end milling tool. According to the internal intersecting line fillet machining method, numerical control machining is used for replacing manual forming to chamfering the internal intersecting line, the quality is improved, and the efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to a processing method for filleting inner intersecting lines. Background technique [0002] There are many intersecting water channels on the pump body of the reciprocating pump. From the processing point of view, that is, intersecting inner holes; when the lateral side of a main channel hole is connected and communicated with side holes (the inner diameter is generally smaller than the main channel hole) , the inner end of the lateral hole intersects with the inner wall of the main channel hole to form a boundary line, which is a closed spatial curve, that is, an inner intersecting line. During the use of the reciprocating pump, the internal fluid pressure is very high. In order to avoid stress concentration and local sharp corner collapse on the inner intersecting line, the design will carry out round corner transition treatment at the position of the in...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a method for processing inner intersecting line fillets, which avoids the problem that the existing modeling and programming software cannot handle the numerical control machining of the inner intersecting line positions. problem, achieved the effect of replacing manual molding with numerical control machining, improving quality and increasing efficiency

Images