T-shaped ring groove cutting tool and cutting machining method thereof

Abstract

The invention provides a T-shaped ring groove cutting tool and a cutting machining method thereof. The cutting tool comprises a tool bar, a T-shaped groove tool and a pressing plate, the T-shaped groove tool comprises a transverse blade and a longitudinal blade, one end of the tool bar serves as a tool bit, the pressing plate is fixedly connected with the tool bit through a bolt, one end of the longitudinal blade is clamped between the pressing plate and the tool bit, the other end of the longitudinal blade is fixedly connected with the transverse blade, a pair of arc-shaped side cutting edgesare arranged on the left side and the right side of the transverse blade, a straight auxiliary cutting edge is further arranged on the outer side face of the transverse blade, and the auxiliary cutting edge connects the pair of side cutting edges into a non-closed curved cutting edge. The cutting machining method comprises the steps of roughly machining and finely machining a longitudinal annulargroove by using the square-head groove tool, machining and forming a transverse annular groove at a time by using the cutting tool, and finely machining the longitudinal annular groove. By the adoption of the technical scheme, tools are prevented from being replaced halfway, tool receiving marks are prevented from being generated on the cutting face, the machining precision and the surface roughness of the inner walls and the bottom walls of the composite annular grooves are improved, and the machining quality is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a T-shaped ring groove cutting tool and a cutting processing method thereof. Background technique [0002] In various mechanical parts, groove feature elements are very common. As people's requirements for the performance of parts are increasing, the shape of groove features becomes more and more complex. For the processing of ordinary blind grooves, milling or turning is generally used. However, for a type of T-shaped ring groove with complex shape, the T-shaped ring groove is mainly composed of a vertical ring groove connected with the outside world and a horizontal ring groove connected with the longitudinal ring groove. The processing is extremely difficult. On the one hand, it is difficult for the tool to penetrate into the longitudinal ring groove to process the horizontal ring groove, and the machining accuracy of the horizontal ring groove is difficult to gu...

AI Technical Summary

Problems solved by technology

[0002] In various mechanical parts, groove feature elements are very common. As people's requirements for the performance of parts are increasing, the shape of groove features becomes more and more complex. For the processing of ordinary blind grooves, milling or turning is generally used. However, for a type of T-shaped ring groove with complex shape, the T-shaped ring groove is mainly composed of a vertical ring groove connected with the outside world and a horizontal ring groove connected with the longitudinal ring groove. The processing is extremely difficult. On the one hand, it is difficult for the tool to penetrate into the longitudinal ring groove to process the horizontal ring groove, and the machining accuracy of the horizontal ring groove is difficult to guarantee. On the other hand, the processing of this type of composite ring groove generally requires the use of various types of The cutting tool adopts multi-process cutting process. During the processing, changing the tool will increase the positioning error of the cutting tool and affect the machining accuracy. The cutting surface cannot be formed at one time, and a joint tool mark will be formed between the two cutting surfaces, which will affect the composite. Roughness accuracy of the inner wall or bottom wall of the ring groove

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