CN202344415U

CN202344415U - Grinding wheel mould

Info

Publication number: CN202344415U
Application number: CN2011204955812U
Authority: CN
Inventors: 蔡芳华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-02
Filing date: 2011-12-02
Publication date: 2012-07-25
Anticipated expiration: 2021-12-02

Abstract

The utility model relates to a grinding wheel mould for manufacturing a grinding wheel. The grinding wheel mould comprises a mould ring, a lower mould, an upper mould and a core rod arranged in the central holes of the lower mould and the upper mould, a step face is formed at the inner side face of the mould ring, and a wear-resistant ring is arranged on the step face and is provided with a fixed ring which is fixed on the mould ring. The grinding wheel mould disclosed by the utility model has the advantages that by means of arranging a circle of wear-resistant ring harder than sand on the mould ring, sand cannot abrade the mould ring when the grinding wheel is manufactured under high pressure, and the cost for manufacturing the mould is low; and the service life of the entire grinding wheel mould can be prolonged, and thus, the cost for producing the grinding wheel is reduced.

Description

Grinding wheel die

Technical field

The utility model relates to a kind of instrument of making emery wheel, particularly a kind of mould of making emery wheel.

Background technology

Existing grinding wheel die is reached the plug that in counterdie and patrix centre bore, is provided with and is formed by modular ring, a counterdie, a patrix; Because emery wheel is under high pressure in grinding wheel die, to suppress sand grains to form; And the hardness of sand grains is very high; So the surface of can wear and tear mould, particularly modular ring, so the service life of modular ring is not long.If entire die is used high-abrasive material, then cost is very high.

The utility model content

The utility model technical problem to be solved be overcome the above-mentioned shortcoming of existing grinding wheel die and provide a kind of not easy to wear, cost is low, the grinding wheel die of long service life.

The utility model solves the problems of the technologies described above the technical scheme that is adopted:

Grinding wheel die reaches the plug that in counterdie and patrix centre bore, is provided with by modular ring, counterdie, patrix and forms, and described modular ring medial surface has a step surface, puts a wear ring on the step surface, on wear ring, puts a retainer ring again, and retainer ring is fixed on the modular ring.Wear ring can be processed by the material harder than sand material, like zirconia etc.

Compared with prior art; The advantage of the utility model is: through the circle wear ring more harder than sand grains is set on modular ring; When therefore under high pressure making emery wheel; The sand grains modular ring that can not wear and tear, and the cost of mfg. moulding die is low: can also improve the service life of whole grinding wheel die, thereby reduce the cost of producing emery wheel.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment;

Sketch map when Fig. 2 is the utility model embodiment abrasive wheel forming.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figure 1; Grinding wheel die; Be made up of modular ring l, counterdie 2, a patrix 3 and the core Chinese catalpa that in counterdie 2 and patrix 3 centre bores, is provided with, described modular ring 1 medial surface has a step surface 11, puts a wear ring 5 on the step surface 11; On wear ring, put a retainer ring 6 again, retainer ring 6 can be fixed by welding on the modular ring 1.

When making emery wheel, below modular ring l, put counterdie 2, in the centre bore of counterdie 2, insert plug 4, then sand grains 7 is poured into from above, on sand grains 7, press patrix 3 again, and plug 4 is passed the interstitial hole of patrix 3.On patrix 3, apply high pressure again, sand grains 7 under high pressure compresses, and is molded into emery wheel at last, sees Fig. 2.

Owing to be wear ring with sand grains 7 contact positions on the modular ring 1, therefore can not wear and tear.

Claims

1. grinding wheel die; Reach the plug that in counterdie and patrix centre bore, is provided with by modular ring, counterdie, patrix and form, it is characterized in that: described modular ring medial surface has a step surface, puts a wear ring on the step surface; On wear ring, put a retainer ring again, retainer ring is fixed on the modular ring.