CN103042214B - Fastening structure for tool for powder compacting of magnetic materials - Google Patents
Fastening structure for tool for powder compacting of magnetic materials Download PDFInfo
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- CN103042214B CN103042214B CN201210569031.XA CN201210569031A CN103042214B CN 103042214 B CN103042214 B CN 103042214B CN 201210569031 A CN201210569031 A CN 201210569031A CN 103042214 B CN103042214 B CN 103042214B
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Abstract
The invention discloses a fastening structure for a tool for powder compacting of magnetic materials. The fastening structure comprises two connecting holes and a countersunk hexagon socket screw. The connecting holes are arranged on two first workpieces respectively. Each connecting hole penetrates through the corresponding first workpiece and comprises a first groove part and a first through hole part having a smooth inner wall, wherein the cross sectional area of the first groove part is larger than that of the first through hole part. A shank part of the countersunk hexagon socket screw penetrates through the connecting holes of the two first workpieces. A countersunk part of the countersunk hexagon socket screw is located in one first groove part, and a nut is tightened to the other end of the countersunk part and located in the other first groove part. The fastening structure is used for tool assembly, is effective in fastening and is of no effect on tool application. In addition, manufacturing efficiency of moulds and dies is increased.
Description
Technical field
The present invention relates to magnetic material mould field, particularly relate to the fastening structure of the compressing mould of a kind of magnetic material powder.
Background technology
The compressing mould of magnetic material powder is connected to form by template (i.e. die cavity part).Mould is compressing to magnetic material powder under needing to add outside the environment of high-intensity magnetic field, for ensureing the orientation consistency in magnetic field, the template of different directions need adopt different mold materials, namely the material requirements magnetic conductivity of the template in parallel magnetic field direction is low, and the material requirements magnetic conductivity of the template in vertical magnetic field direction is high.The template in above-mentioned vertical magnetic field direction needs to be close to electromagnet cartridge when mounted.In prior art, the connection between the die cavity part of mould is mainly threaded connection realization, i.e. processing screw hole on die cavity part, then connects with screw rod.Because die surface hardness General Requirements HRC>50, and manual tapping has been not easy to realize as material hardness HRC>20, therefore the process of die cavity part is first roughing then punches after tapping and heat-treat.
Summary of the invention
For above-mentioned technical problem, the invention provides the fastening structure of the compressing mould of a kind of magnetic material powder, this fastening structure adopts countersunk head hexagon socket head cap screw to be fastenedly connected two the first workpiece, nut enters in the first groove part, ensure the firm connection of two the first workpiece on the one hand, and the first throughhole portions and the second through hole all have smooth inwall, do not need machining internal thread, improve the efficiency of Making mold.
Technical scheme provided by the invention is:
A fastening structure for the compressing mould of magnetic material powder, comprising:
Two connecting holes, described two connecting holes are opened on two the first workpiece respectively, each connecting hole runs through its first workpiece, and include the first groove part and have the first throughhole portions of smooth inner wall, and the cross-sectional area of its first groove part is greater than the cross-sectional area of its first throughhole portions;
Countersunk head hexagon socket head cap screw, the screw portion of described countersunk head hexagon socket head cap screw passes the connecting hole of two the first workpiece, the counter sink portion of described countersunk head hexagon socket head cap screw is positioned at one of them first groove part, and the other end has screwed a nut, and described nut is positioned at another the first groove part.
Preferably, the fastening structure of the compressing mould of described magnetic material powder, also comprises: the second through hole, it is opened on second workpiece, there is smooth inwall, run through described second workpiece, and the axis of described second through hole and the dead in line of two the first throughhole portions; Described screw rod passes through the connecting hole of the connecting hole of one of them the first workpiece, described second through hole and another the first workpiece, the counter sink portion of described countersunk head hexagon socket head cap screw is positioned at one of them first groove part, the other end has screwed a nut, and described nut is positioned at another the first groove part.
Preferably, in the fastening structure of the compressing mould of described magnetic material powder, described nut is hexagon, and another first groove part described is circle, hexagon or long trough.
Preferably, in the fastening structure of the compressing mould of described magnetic material powder, the first groove part of arbitrary connecting hole and the dead in line of its first throughhole portions.
Preferably, in the fastening structure of the compressing mould of described magnetic material powder, each connecting hole also comprises the second groove part be communicated with its first throughhole portions; Two ends of described second workpiece are provided with a protuberance in the position of described second through hole, and each protuberance is positioned at each second groove part.
Preferably, in the fastening structure of the compressing mould of described magnetic material powder, described second groove is linear groove always, and its cross section is rectangle.
Preferably, in the fastening structure of the compressing mould of described magnetic material powder, the degree of depth of another the first groove part described is more than or equal to the height of the nut being positioned at its inside.
The present invention includes connecting hole, connecting hole is opened on the first workpiece, and connecting hole comprises the first groove part and has the first throughhole portions of smooth inner wall, and screw rod is successively by the connecting hole of two the first workpiece, and nut is positioned at the first groove part.Present invention achieves the assembling of mould, there is good fastening effect, and do not affect the application of mould.Meanwhile, invention increases the manufacture efficiency of mould.
Accompanying drawing explanation
Fig. 1 is the structural representation of mould of the present invention;
Fig. 2 is the top view of mould of the present invention;
Fig. 3 is the structural representation of the connecting rod of mould of the present invention;
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail, can implement according to this with reference to description word to make those skilled in the art.
As shown in Figure 1, Figure 2 and Figure 3, the invention provides the fastening structure of the compressing mould of a kind of magnetic material powder, comprise: two connecting holes, described two connecting holes are opened on two the first workpiece respectively, each connecting hole runs through its first workpiece, and include the first groove part and have the first throughhole portions of smooth inner wall, and the cross-sectional area of its first groove part is greater than the cross-sectional area of its first throughhole portions; Countersunk head hexagon socket head cap screw, the screw portion of described countersunk head hexagon socket head cap screw passes the connecting hole of two the first workpiece, the counter sink portion of described countersunk head hexagon socket head cap screw is positioned at one of them first groove part, and the other end has screwed a nut, and described nut is positioned at another the first groove part.
The fastening structure of the compressing mould of described magnetic material powder, also comprise: the second through hole, it is opened on second workpiece, has smooth inwall, run through described second workpiece, and the axis of described second through hole and the dead in line of two the first throughhole portions; Described screw rod passes through the connecting hole of the connecting hole of one of them the first workpiece, described second through hole and another the first workpiece, the counter sink portion of described countersunk head hexagon socket head cap screw is positioned at one of them first groove part, the other end has screwed a nut, and described nut is positioned at another the first groove part.
In the fastening structure of the compressing mould of described magnetic material powder, described nut is hexagon, and another first groove part described is circle, hexagon or long trough.
In the fastening structure of the compressing mould of described magnetic material powder, the first groove part of arbitrary connecting hole and the dead in line of its first throughhole portions.
In the fastening structure of the compressing mould of described magnetic material powder, each connecting hole also comprises the second groove part be communicated with its first throughhole portions; Two ends of described second workpiece are provided with a protuberance in the position of described second through hole, and each protuberance is positioned at each second groove part.
In the fastening structure of the compressing mould of described magnetic material powder, described second groove is linear groove always, and its cross section is rectangle.
In the fastening structure of the compressing mould of described magnetic material powder, the degree of depth of another the first groove part described is more than or equal to the height of the nut being positioned at its inside.
Embodiment one
The main body of mould is formed by connecting by two piece of first template 1 and two the second templates 2, and the first template is connected with the second template by fastening structure of the present invention.Further, the component of electromagnet cartridge 3 is needed to be close to when the first template is mould installation.First template and the second template define die cavity.Wherein, the material of the first template is Cr12MOV material, is magnetic material, and the second template is 70Mn material.Arrange protuberance 10 in the end of the second template, arrange the second groove part 9 in the below of the first throughhole portions 5 of the first template, protuberance enters to the second groove part, forms joinery and its construction, makes the connection of the first template and the second template more fastening.
In the present embodiment, the first workpiece is the first template, and second workpiece is the second template.
For the first template, the first groove part 7 and the first throughhole portions 5, first throughhole portions that only need to process connecting hole 6 thereon have smooth inwall, and therefore, the first workpiece can adopt and complete heat treated materials processing and obtain.Second template is also like this, and the second through hole 8 that processing has a smooth inner wall thereon just can realize the connection of itself and the first workpiece.
Nut 4 is plain nut, is hexagon.For easy to process, another first groove part that above-mentioned nut is corresponding can use circular counter sink, but in order to tighten in rotation or looser a bolt 11 time, prevent nut from together rotating, special-shaped counter sink can be adopted, as hexagonal counter sink or elongated slot counter sink.Nut is positioned at another the first groove part, does not protrude from the surface of the first corresponding template, does not affect the laminating of this first template and electromagnet cartridge.
For without heat treated material, milling cutter rapid processing first groove part and the first throughhole portions can be adopted, then the first workpiece is heat-treated.Metal material for heat-treatment hardness HRC<60 can adopt alloy milling cutter to process the first groove part and the first throughhole portions.In irregular shape for the first groove part, the shape as nut is hexagonal, can adopt spark machined.
Embodiment two
Above die cavity, arrange pressure head, pressure head 12 is connected to press apparatus by connecting rod 13, by tightening up the dovetail groove of connecting rod to reach the effect of fastening pressure head 10.The fastening structure of above-mentioned connecting rod and pressure head also can adopt fastening structure of the present invention.As shown in Figure 3, two, the left and right part of connecting rod is connected by fastening structure.In the present embodiment, two the first workpiece are left part 14 and the right part 15 of connecting rod, in above-mentioned left part and right part, connecting hole 6 is all set, bolt 11 is through two connecting holes, and counter sink portion is positioned at first groove, and nut is positioned at another the first groove part.
Although embodiment of the present invention are open as above, but it is not restricted to listed in description and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend described.
Claims (6)
1. a fastening structure for the compressing mould of magnetic material powder, is characterized in that, comprising:
Two connecting holes, described two connecting holes are opened on two the first workpiece respectively, each connecting hole runs through its first workpiece, and include the first groove part and have the first throughhole portions of smooth inner wall, and the cross-sectional area of its first groove part is greater than the cross-sectional area of its first throughhole portions;
Countersunk head hexagon socket head cap screw;
Second through hole, it is opened on second workpiece, has smooth inwall, runs through described second workpiece, and the axis of described second through hole and the dead in line of two the first throughhole portions;
Wherein, the screw portion of described countersunk head hexagon socket head cap screw passes through the connecting hole of the connecting hole of one of them the first workpiece, described second through hole and another the first workpiece, the counter sink portion of described countersunk head hexagon socket head cap screw is positioned at one of them first groove part, the other end has screwed a nut, and described nut is positioned at another the first groove part.
2. the fastening structure of the compressing mould of magnetic material powder as claimed in claim 1, it is characterized in that, described nut is hexagon, and another first groove part described is circle, hexagon or long trough.
3. the fastening structure of the compressing mould of magnetic material powder as claimed in claim 1, is characterized in that, the first groove part of arbitrary connecting hole and the dead in line of its first throughhole portions.
4. the fastening structure of the compressing mould of magnetic material powder as claimed in claim 1, it is characterized in that, each connecting hole also comprises the second groove part be communicated with its first throughhole portions; Two ends of described second workpiece are provided with a protuberance in the position of described second through hole, and each protuberance is positioned at each second groove part.
5. the fastening structure of the compressing mould of magnetic material powder as claimed in claim 4, is characterized in that, described second groove is linear groove always, and its cross section is rectangle.
6. the fastening structure of the compressing mould of the magnetic material powder according to any one of claim 1 to 5, is characterized in that, the degree of depth of another the first groove part described is more than or equal to the height of the nut being positioned at its inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210569031.XA CN103042214B (en) | 2012-12-24 | 2012-12-24 | Fastening structure for tool for powder compacting of magnetic materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210569031.XA CN103042214B (en) | 2012-12-24 | 2012-12-24 | Fastening structure for tool for powder compacting of magnetic materials |
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| CN103042214A CN103042214A (en) | 2013-04-17 |
| CN103042214B true CN103042214B (en) | 2015-04-01 |
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| CN201210569031.XA Active CN103042214B (en) | 2012-12-24 | 2012-12-24 | Fastening structure for tool for powder compacting of magnetic materials |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108973205A (en) * | 2017-06-02 | 2018-12-11 | 自贡硬质合金有限责任公司 | A kind of special-shaped product molding die and its assembly method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2923293Y (en) * | 2006-06-20 | 2007-07-18 | 宁波科田磁业有限公司 | Formation mould for pressing magnetic material powder |
| CN201115879Y (en) * | 2007-11-08 | 2008-09-17 | 郭德明 | Combined hole drilling prelocalization tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551089B (en) * | 2008-03-31 | 2011-05-04 | 海洋王照明科技股份有限公司 | Anti-loosing locking structure and projection lamp provided with same |
| CN101474780A (en) * | 2009-01-06 | 2009-07-08 | 付栋先 | Device for quickly clamping wire |
| CN203076581U (en) * | 2012-12-24 | 2013-07-24 | 中铝广西有色金源稀土股份有限公司 | Fastening structure of mold for compression molding of magnetic material powder |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2923293Y (en) * | 2006-06-20 | 2007-07-18 | 宁波科田磁业有限公司 | Formation mould for pressing magnetic material powder |
| CN201115879Y (en) * | 2007-11-08 | 2008-09-17 | 郭德明 | Combined hole drilling prelocalization tool |
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| CN103042214A (en) | 2013-04-17 |
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Address after: 542603 Wanggao Industrial Development Zone, Hezhou, the Guangxi Zhuang Autonomous Region Patentee after: Chinalco Jinyuan Rare-Earth Co., Ltd. Address before: 542603 Wanggao Industrial Development Zone, Hezhou, the Guangxi Zhuang Autonomous Region Patentee before: Chinalco Jinyuan Rare-Earth Co., Ltd. |
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Address after: 542603 Wanggao Industrial Development Zone, Hezhou, the Guangxi Zhuang Autonomous Region Patentee after: China Rare Earth (Guangxi) Jinyuan rare earth new material Co., Ltd Address before: 542603 Wanggao Industrial Development Zone, Hezhou, the Guangxi Zhuang Autonomous Region Patentee before: CHINALCO GUANGXI COLORED JINYUAN RARE EARTH Co.,Ltd. |