CN209029184U

CN209029184U - A kind of green compact of diamond type magnetic shoe

Info

Publication number: CN209029184U
Application number: CN201821434367.4U
Authority: CN
Inventors: 冯华; 杨慧
Original assignee: Hunan Aerospace Magnet and Magneto Co Ltd
Current assignee: Hunan Aerospace Magnet and Magneto Co Ltd
Priority date: 2018-09-03
Filing date: 2018-09-03
Publication date: 2019-06-25
Anticipated expiration: 2028-09-03

Abstract

A kind of green compact of diamond type magnetic shoe, raw embryo ontology including hexagon, six sides are respectively AB, BC, CD, DE, EF, AF, green compact water-absorption surface EF is plane, green compact punch face is AB, BC, CD three-stage, and BC segment length is less than EF segment length and is parallel to EF sections, and AB sections, CD sections are inclined-plane, the angle of AB sections and horizontal direction is 1-5 degree, and the angle of CD sections and horizontal direction is 175-179 degree；Green compact left side AF and green compact right side DE are vertical with green compact water-absorption surface EF, and green compact left side AF and green compact right side DE height are identical, and are less than the interior thickness H of raw embryo ontology.The utility model is in the case where diamond type magnetic shoe green compact magnetic field orientating is constant, sintered magnetic shoe blank punch face is set to remain plane as far as possible by optimization green compact design, to reduce the grinding process difficulty of processing of rear end, production cost is reduced, improves product qualification rate.

Description

A kind of green compact of diamond type magnetic shoe

Technical field

The utility model relates to magnetic shoe green compact, are specifically related to a kind of green compact of diamond type magnetic shoe.

Background technique

Currently, the green compact of diamond type magnetic shoe all simple designs are the square green compact that punch face is plane in industry, referring to Fig.1 Shown, wherein green compact water-absorption surface EF and punch face AD is plane, and green compact left side FA and right side ED height are equal in green compact Between thickness H.This design method advantage is mold, and the processing is simple, but since diamond type magnetic shoe green compact are in formative stage process Magnetic field orientating, and aligned generally magnetic field is converged by absorbing water towards punch face, i.e., green compact punch face is strong magnetic surface, green compact Magnetic field orientating as illustrated by the arrows in fig. 1, therefore inconsistent with centre shrinking percentage after sintering at left and right sides of green compact, middle shrinkage rate It is greater than two sides, leads to sintered blank as seen with reference to fig. 2, intermediate thin can be shown as by sintered blank punch face Two sides are thick, i.e., blank punch face is deformed into concave surface (interior thickness of sintered blank is h), lead to the grinding of product two sides Amount is greater than middle position and increases production cost to increase the grinding process difficulty of processing of rear end, can also make product qualified Rate is declined.

Utility model content

Technical problem to be solved in the utility model is to overcome the shortcomings of above-mentioned background technique, provides a kind of diamond type The green compact of magnetic shoe make sintered magnetic by optimization green compact design in the case where diamond type magnetic shoe green compact magnetic field orientating is constant Watt blank punch face remains plane as far as possible, to reduce the grinding process difficulty of processing of rear end, reduces production cost, improves and produce Product qualification rate.

The utility model solve its technical problem the technical solution adopted is that, a kind of green compact of diamond type magnetic shoe, including six The raw embryo ontology of side shape, six sides are respectively AB, BC, CD, DE, EF, AF, and green compact water-absorption surface EF is plane, green compact punch face be AB, BC, CD three-stage, BC segment length are less than EF segment length and are parallel to EF sections, and AB sections, CD sections are inclined-plane, AB sections and horizontal direction Angle be 1-5 degree, the angle of CD sections and horizontal direction is 175-179 degree；Green compact left side AF and green compact right side DE and life Base water-absorption surface EF is vertical, and green compact left side AF and green compact right side DE height are identical, and are less than the interior thickness of raw embryo ontology H。

Further, the BC segment length is the 1/4-1/2 of EF segment length.

Further, the BC segment length is the 1/3 of EF segment length.

Further, the height of the green compact left side AF and green compact right side DE are 0.97-0.99H.

Compared with prior art, as follows the advantages of the utility model:

After sintering, punch face can be deformed into almost plane by original three-stage to diamond type magnetic shoe green compact, thus rear When continuous grinding, AB and CD sections of punch face of grinding amount of blank is reduced, to generate following benefit:

(1) magnetic shoe integral grinding amount is reduced, grinding cost is reduced；

(2) the excessive caused product chip off-falling of grinding amount is reduced, product qualification rate is improved；

(3) it is consistent product two sides with intermediate grinding amount, the consistency enhanced product performance.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of existing diamond type magnetic shoe green compact.

Fig. 2 is the structural schematic diagram of the blank after existing diamond type magnetic shoe green sintering.

Fig. 3 is the structural schematic diagram of the utility model embodiment.

Fig. 4 is the structural schematic diagram of the sintered blank of embodiment illustrated in fig. 1.

Specific embodiment

With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.

Referring to Fig. 3, the present embodiment includes the raw embryo ontology 1 of hexagon, and six sides are respectively AB, BC, CD, DE, EF, AF, life Base water-absorption surface EF is plane, and green compact punch face is AB, BC, CD three-stage, and BC segment length is less than EF segment length and is parallel to EF Section, AB sections, CD sections are inclined-plane；Green compact left side AF and green compact right side DE are vertical with green compact water-absorption surface EF, green compact left side AF It is identical with green compact right side DE height, and the height that the interior thickness H namely H for being less than raw embryo ontology 1 are BC sections to EF sections.

In the present embodiment, BC segment length is the 1/3 of EF segment length.

In the present embodiment, the angle of AB sections and horizontal direction is 3 degree, CD sections and the angle of horizontal direction is 177 degree.Due to The green compact of the utility model diamond type magnetic shoe are finally square magnetic to be processed into, therefore the angle of AB sections and horizontal direction should not surpass 5 degree are crossed, the excessive then final processing of angle is not at square magnetic.

In the present embodiment, the height of green compact left side AF and green compact right side DE are 0.98H.In practical applications, green compact The height of left side AF and green compact right side DE are adjusted with specific reference to the raw material shrinking percentage situation that magnetic shoe uses.

Referring to Fig. 4, after sintering, punch face can be deformed into closely the diamond type magnetic shoe green compact of this implementation by original three-stage Like plane (sintered blank with a thickness of h), to reduce AB and CD sections of punch face of blank in subsequent grinding Grinding amount, to generate following benefit:

Those skilled in the art can carry out various modifications to the utility model and modification, if these modifications and variations Within the scope of the claims of the present invention and its equivalent technology, then these modifications and variations are also in the guarantor of the utility model Within the scope of shield.

The prior art that the content being not described in detail in specification is known to the skilled person.

Claims

1. a kind of green compact of diamond type magnetic shoe, it is characterised in that: the raw embryo ontology including hexagon, six sides be respectively AB, BC, CD, DE, EF, AF, green compact water-absorption surface EF are plane, and green compact punch face is AB, BC, CD three-stage, and BC segment length is less than EF sections long Spend and be parallel to EF sections, AB sections, CD sections are inclined-plane, and the angle of AB sections and horizontal direction is 1-5 degree, CD sections with the folder of horizontal direction Angle is 175-179 degree；Green compact left side AF and green compact right side DE are vertical with green compact water-absorption surface EF, green compact left side AF and green compact DE height in right side is identical, and is less than the interior thickness H of raw embryo ontology.

2. the green compact of diamond type magnetic shoe as described in claim 1, it is characterised in that: the BC segment length is the 1/ of EF segment length 4-1/2。

3. the green compact of diamond type magnetic shoe as claimed in claim 2, it is characterised in that: the BC segment length is the 1/ of EF segment length 3。

4. the green compact of the diamond type magnetic shoe as described in one of claim 1-3, it is characterised in that: the green compact left side AF and life The height of base right side DE is 0.97-0.99H.