CN203030936U

CN203030936U - Cutter for processing piston rings of automobiles

Info

Publication number: CN203030936U
Application number: CN 201320004219
Authority: CN
Inventors: 郑蒙蒙; 汪建海; 张海斌; 刘通
Original assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Current assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Priority date: 2013-01-06
Filing date: 2013-01-06
Publication date: 2013-07-03
Anticipated expiration: 2023-01-06

Abstract

A cutter for processing piston rings of automobiles includes a cutter body and a cutter head, wherein the cutting face of the cutter head is of a step shape and forms two inward recessed grooves, three cutting edges are correspondingly formed on the cutter head portion, the three cutting edges (4, 5 and 6) on the cutter head portion (1) are all in an arc transition, and the fillet R (radius) of the arc transition is 0.3. According to the cutter for processing the piston rings of the automobiles, a pointless round with a radius of 0.3 is additionally arranged on the cutter head portion of the cutter so that the tipping of the cutter during processing is relieved; an original cutter has relatively high rigidity during the processing, while the cutter for processing the piston rings of the automobiles is made of materials with a low rigidity, and by adjusting cutting parameters, the tipping of the cutter can be avoided; and the pointless round is additionally arranged on the cutter head portion so that not only the tipping of the cutter is prevented, but also the problems of burrs and air holes generated during the processing of the cutter are solved.

Description

The cutter that is used for the processing automobile piston ring

Technical field

The utility model relates to a kind of cutter of processing automobile piston ring.

Background technology

The tipping phenomenon appears in cutter work in-process easily, burr and pore appear in the processing easily, and the service life of cutter is very low, according to the on-the-spot processing of cutter situation analysis, it might be the hardness height of cutter material, the material of cutter cutter head part is more crisp, causes the easy tipping of cutter work in-process, causes the service life of cutter shorter.As shown in Figure 1, 2, cutter comprises cutter hub 7 and cutter head 1, the cutting face of existing cutter head 1 is step, the

groove

2,3 of two indents is respectively R=0.3, R=0.5, the cutting face forms three

blades

4,5,6, because three blades 4, the 5, the 6th, wedge angle is easy to occur tipping man-hour adding, and influences working (machining) efficiency and cutter life.

The utility model content

The purpose of this utility model is to provide a kind of cutter for the processing automobile piston ring, reduces the tipping phenomenon.

The technical solution of the utility model is:

The cutter that is used for the processing automobile piston ring, comprise cutter hub and cutter head, the cutting face of cutter head is step, form the groove of two indents, corresponding to three blades of cutter head place formation, three blades (4), (5), (6) that described cutter head (1) is located are arc transition, and the fillet of arc transition is R=0.3.

The cutter head material is the glomerocryst boron carbide, and the material of cutter hub is carbide alloy.

The utility model partly increases blunt round R=0.3 at the cutter cutter head, alleviate the phenomenon of cutter work in-process tipping, original cutter work in-process hardness ratio is higher, now use instead hardness ratio lower material, by adjusting cutting parameter, prevent the phenomenon of cutter tipping, cutter head partly increases blunt circle, both can prevent the cutter tipping, solve the phenomenon that burr and pore appear in the cutter work in-process again.

Description of drawings

Fig. 1 is the structural representation of existing cutter;

Fig. 2 is the partial enlarged drawing of Fig. 1;

Fig. 3 is structural representation of the present utility model;

Fig. 4 is the partial enlarged drawing of Fig. 3.

The specific embodiment

Shown in Fig. 3,4, the utility model comprises cutter hub 7 and cutter head 1, shape according to workpiece to be machined piston of automobile ring, the cutting face of cutter head 1 is step, form the

groove

2,3 of two indents,

groove

2,3 is respectively R=0.3, R=0.5, and three

blades

4,5,6 at cutter head 1 place all are designed to the arc transition of R=0.3, thereby solves the phenomenon that burr and pore in use appear in cutter.

Cutter head 1 material is glomerocryst boron carbide (PCBN), and the material of cutter hub 7 is carbide alloy.

The carbide alloy that cutter hub 7 participates in cutting has a series of premium properties such as hardness height, wear-resisting, intensity and toughness is better, heat-resisting, corrosion-resistant, particularly its high rigidity and wearability, the polycrystalline cubic boron carbide (PCBN) that cutter head 1 participates in cutting tip has higher hardness, chemical inertness and at high temperature has very strong stability, can obtain very high working (machining) efficiency and machining accuracy in high-speed cutting.

Claims

1. the cutter that is used for the processing automobile piston ring, comprise cutter hub (7) and cutter head (1), the cutting face of cutter head (1) is step, form the groove (2,3) of two indents, correspondingly locate to form three blades (4,5,6) at cutter head (1), it is characterized in that: three blades (4,5,6) that described cutter head (1) is located are arc transition, and the fillet of described arc transition is R=0.3.

2. the cutter for the processing automobile piston ring according to claim 1, it is characterized in that: cutter head (1) material is the glomerocryst boron carbide, and the material of cutter hub (7) is carbide alloy.