CN201889497U

CN201889497U - Face milling blade for processing engine cylinder cover

Info

Publication number: CN201889497U
Application number: CN2010206101164U
Authority: CN
Inventors: 汪建海; 周海滨
Original assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Current assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Priority date: 2010-11-17
Filing date: 2010-11-17
Publication date: 2011-07-06
Anticipated expiration: 2020-11-17

Abstract

A face milling blade for processing an engine cylinder cover comprises a cutting portion. The cutting portion is arranged at the corner of the face milling blade, a cutting edge of the cutting portion is in an arc structure, and the connection portion of the cutting portion and the face milling blade is in an arc structure. A first rear angle alpha of the cutting portion is 15 degrees, and a second rear angle beta of the cutting portion is 18 degrees. The face milling blade for processing the engine cylinder cover is simple in structure and practical in functions, interference of contacting surface of the blades with work pieces and other portions is reduced due to the arc structure of the cutting edge of the cutting portion, the problem that the original cutter scratches work pieces can be resolved, processing quality of work piece surface is improved, and processing life of the cutter is prolonged simultaneously.

Description

The face-milling insert of processing engine cylinder cover

Technical field

The utility model belongs to the Machining Technology field, relates in particular to a kind of face-milling insert that is used to process engine cylinder cover.

Background technology

The structure that is used to process the face-milling insert of engine cylinder cover directly influences the precision of machining, the cutting tip of current blade mainly is composite polycrystal-diamond (or polycrystalline cubic boron nitride composite sheet), this composite sheet is formed through the HTHP compacting by polycrystalline diamond layer (or polycrystalline cubic boron nitride layer) and hard alloy layer, and composite sheet is in the same place by solder bond with cutter hub.In the present cutter structure, cutter head is straight sword, scratches surface of the work in the blade process easily, reduces crudy and precision.

The utility model content

The utility model purpose is to provide a kind of face-milling insert of processing engine cylinder cover, can improve crudy and precision.

To achieve these goals, the utility model adopts following technical scheme: the face-milling insert of processing engine cylinder cover, comprise cutting tip, described cutting tip is arranged on a jiao of face-milling insert, the cutting edge of cutting tip is an arc structure, cutting tip and face-milling insert junction are arc structure, and arc radius is 150 ㎜.

The described cutting tip first relief angle α is 15 °, and the cutting tip second relief angle β is 18 °.

The utility model is simple in structure, function is practical, the cutting edge of cutting tip is an arc structure, has reduced the contact-making surface of blade and workpiece and the interference at other positions, has improved the problem that former cutter scratches workpiece, improved the suface processing quality of workpiece, processing life-span of the cutter that has prolonged simultaneously.

Description of drawings

Fig. 1 is a front view of the present utility model;

Fig. 2 is a left view of the present utility model;

Fig. 3 is a vertical view of the present utility model.

The specific embodiment

Embodiment: as Figure 1-3, the face-milling insert of processing engine cylinder cover comprises cutting tip, cutting tip is arranged on a jiao of face-milling insert, the cutting edge of cutting tip is arc structure R1, and cutting tip and face-milling insert junction are arc structure, and arc radius R2 is 150 ㎜.Cutting tip 2 first relief angle α are 15 °, and cutting tip 2 second relief angle β are 18 °.

Cutting tip 2 mainly is the composite sheet of polycrystalline diamond (or polycrystalline cubic boron nitride), its composite sheet is that polycrystalline diamond layer (or polycrystalline cubic boron nitride layer) and hard alloy layer form through the HTHP compacting, uses the PCD(polycrystalline diamond) advantage of material: the hardness height; The thermal conductivity factor height is convenient to the cutter heat and is transmitted rapidly; Coefficient of friction is little, can significantly reduce Tool in Cutting power; Thermal coefficient of expansion is less, and the cutter thermal deformation is little, the machining accuracy height; Affinity is very little between cutter and non-ferrous metal nonmetallic materials, and the process smear metal is difficult for forming built-up edge on the bonding cutting tip.

Because cutting tip 2 is provided with the first relief angle α and the second relief angle β, has improved machining accuracy and crudy, and has prolonged cutter life greatly, has reduced processing cost.

Claims

1. process the face-milling insert of engine cylinder cover, comprise cutting tip, it is characterized in that: described cutting tip is arranged on a jiao of face-milling insert, and the cutting edge of cutting tip is an arc structure, cutting tip and face-milling insert junction are arc structure, and arc radius is 150 ㎜.

2. the face-milling insert of processing engine cylinder cover according to claim 1 is characterized in that: the described cutting tip first relief angle α is 15 °, and the cutting tip second relief angle β is 18 °.