CN201257538Y

CN201257538Y - Polycrystalline diamond milling cutter box

Info

Publication number: CN201257538Y
Application number: CNU2008201484736U
Authority: CN
Inventors: 张鹏里; 汪建海
Original assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Current assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Priority date: 2008-08-12
Filing date: 2008-08-12
Publication date: 2009-06-17
Anticipated expiration: 2018-08-12

Abstract

The utility model relates to a novel brazed polycrystalline diamond milling tool casket, which effectively solves the problems of quick abrasion and short service life of the prior cutting tool, and poor quality of the processed workpiece. The utility model adopts the technical proposal that the milling tool casket comprises a blade and a cutter body, wherein, the blade is a polycrystalline diamond composite segmental blade, the cutter body is a rectangular flat steel body, the concave arc-shaped surface of the rake angle part of the cutter body is welded together with the convex arc-shaped surface of the segmental blade, a circular arc-shaped transitional surface with 0.2 mm is formed at the tool tip R, and the wiper of the tool tip is increased. The utility model has the advantages that the utility model has simple structure, is novel and unique, has convenient installation and use, improves the surface processing quality of the workpiece, prolongs the service life of the cutting tool, is an innovation on the aluminum alloy cylinder body and the cylinder head of the engine and the cutting tool and has good economic and social benefits.

Description

Welding polycrystalline diamond milling cutter casket

One, technical field

The utility model relates to cutter, particularly a kind of welding polycrystalline diamond milling cutter casket.

Two, background technology

Welding polycrystalline diamond (being called for short PCD) milling cutter casket is the dedicated tool on processing vapor oil turbine aluminium alloy cylinder and cylinder cap plane, its structure is to be welded by blade and cutter hub, it is 45 ° * 0.1 plane cutting edge (blunt cutting edge) that point of a knife (blade) is located, this structure in use because structural problem, its workpiece surface quality that processes poor (roughness is big), wear of the tool flank is fast, and service life is short, the processing cost height, therefore, its improvement and innovation are by being concerned about in the industry.

Three, utility model content

At above-mentioned situation, for overcoming the prior art defective, the purpose of the utility model just provides a kind of novel welding polycrystalline diamond milling cutter casket, it is fast effectively to solve existing tool wear, service life is short, the problem of the workpiece quality difference that processes, the technical scheme of its solution is, includes blade and cutter hub, and blade is the compound fanning strip of polycrystalline diamond, cutter hub is a rectangle band steel body, the concave arc surface of cutter hub forward corner welds together with the convex face of fanning strip, point of a knife R place is a 0.2mm arc transition face, promptly increases the wiper edges of point of a knife, and the utility model is simple in structure, novel unique, easy to install, improve the surface of the work crudy, prolong cutter life, be that engine aluminum alloy cylinder and cylinder cap add an innovation on the cutter, good economic and social benefit is arranged.

Four, description of drawings

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

Fig. 2 is a structure vertical view of the present utility model.

Five, the specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.

By Fig. 1, shown in Figure 2, the utility model includes blade and cutter hub, and blade 1 is the compound fanning strip of polycrystalline diamond, and cutter hub 2 is a rectangle band steel body, the concave arc surface of cutter hub 2 forward corners welds together with the convex face of fanning strip, and point of a knife R place is a 0.2mm arc transition face.

In order to guarantee result of use, there is the step bolt that through hole 5 and locating slot 4 are installed on the cutter hub 2, there is chip area 3 at the concave arc surface rear portion of cutter hub forward corner.

Install and use with original cutter, from above-mentioned situation as can be seen, the utility model is that polycrystalline diamond composite blade and steel knife body firmly are welded together, and be 45 ° * 0.1 to change point of a knife R place into and be 0.2mm (note is made R0.2 usually) with the point of a knife R place of original cutter, increased the wiper edges of point of a knife, reduce the wearing and tearing of cutter, prolonged service life, improved the quality of surface of the work, after tested, workpiece surface roughness is brought up to Ra0.8 from Ra3.2, and No. one time the clamping cutter can be processed nearly ten thousand, prolongs service life more than 10 times, processing cost reduces more than 5 times, process velocity is fast, the production efficiency height, and economic and social benefit is huge.

Claims

1, a kind of welding polycrystalline diamond milling cutter casket, include blade and cutter hub, it is characterized in that, blade (1) is the compound fanning strip of polycrystalline diamond, cutter hub (2) is a rectangle band steel body, the concave arc surface of cutter hub (2) forward corner welds together with the convex face of fanning strip, and point of a knife (R) locates to be 0.2mm arc transition face.

2, welding polycrystalline diamond milling cutter casket according to claim 1 is characterized in that, has the step bolt that through hole (5) and locating slot (4) are installed on the said cutter hub (2), and there is chip area (3) at the concave arc surface rear portion of cutter hub forward corner.