CN214687187U - Silicon nitride tube forming die - Google Patents
Silicon nitride tube forming die Download PDFInfo
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- CN214687187U CN214687187U CN202121102544.0U CN202121102544U CN214687187U CN 214687187 U CN214687187 U CN 214687187U CN 202121102544 U CN202121102544 U CN 202121102544U CN 214687187 U CN214687187 U CN 214687187U
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- thread structure
- pipe body
- silicon nitride
- connecting pipe
- connector
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Abstract
The utility model discloses a silicon nitride pipe forming die, include: the outer pipe body comprises a first connecting pipe body and a second connecting pipe body which are detachably connected, a hollow cavity with a circular cross section is formed between the first connecting pipe body and the second connecting pipe body, and a first external thread structure and a second external thread structure are respectively formed on the outer side walls of two ends of the first connecting pipe body and the second connecting pipe body; a first internal thread structure is formed on the inner wall of the first connector close to the opening end of the first connector, and the first internal thread structure is in threaded connection with the first external thread structure; a second internal thread structure is formed on the inner wall of the second connector close to one end of the second connector, and the second internal thread structure is in threaded connection with the second external thread structure; the inner shaft core is arranged in the hollow cavity, and the diameter of the inner shaft core is smaller than the aperture of the hollow cavity. The die is simple in structure, reasonable in design, convenient to demould, high in machining efficiency, capable of effectively avoiding raw material waste and reducing the production cost of the silicon nitride tube.
Description
Technical Field
The utility model relates to the technical field of mold, more specifically the utility model relates to a silicon nitride pipe forming die that says so.
Background
Silicon nitride is a novel non-metallic ceramic material applied at high temperature, and is characterized by high strength at room temperature and high temperature, good thermal conductivity and low thermal expansion coefficient, so that the silicon nitride ceramic material has excellent thermal shock resistance.
The existing silicon nitride ceramic tube is usually processed by adopting a hot-pressing sintering method to perform integral solid forming in the production process, and then is processed by lathe processing and hole opening, so that the processing procedure is complex, the accuracy is low, the demoulding is inconvenient, the raw material is seriously wasted, the processing period is longer, and the production efficiency is not high.
Therefore, it is an urgent need to solve the problem of the art to provide a silicon nitride tube forming mold with simple structure, reasonable design, easy demolding, high processing efficiency and high processing precision, and capable of effectively reducing the cost of raw materials.
Disclosure of Invention
In view of this, in order to solve among the prior art technical problem such as silicon nitride ceramic tube machining efficiency is low, raw and other materials are extravagant serious and the drawing of patterns is inconvenient, the utility model provides a simple structure, reasonable in design easily the drawing of patterns, machining efficiency is high and machining precision is high, can effectively reduce raw materials cost's silicon nitride pipe forming die.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a silicon nitride tube forming die comprises:
the outer pipe body comprises a first connecting pipe body and a second connecting pipe body which are detachably connected, the cross sections of the first connecting pipe body and the second connecting pipe body are both arc-shaped structures, a hollow cavity with a circular cross section is formed between the first connecting pipe body and the second connecting pipe body, and a first external thread structure and a second external thread structure are respectively formed on the outer side walls of two ends of the first connecting pipe body and the second connecting pipe body;
the first connector is of a U-shaped structure, a first internal thread structure is formed on the inner wall of the first connector close to the opening end of the first connector, and the first internal thread structure is in threaded connection with the first external thread structure;
the second connector is of a tubular structure with two open ends, a second internal thread structure is formed on the inner wall of the second connector close to one end of the second connector, and the second internal thread structure is in threaded connection with the second external thread structure;
the inner shaft core is arranged in the hollow cavity and coaxially arranged with the hollow cavity, and the diameter of the inner shaft core is smaller than the aperture of the hollow cavity.
According to the technical scheme, compare with prior art scheme, the utility model provides a silicon nitride pipe forming die, through the connection structure who utilizes first connector and outer body, can make this mould form a confined cavity structure, through the connection structure who utilizes second connector and outer body, make this mould overall structure compactness stronger, and stability is good, through the mounting structure who utilizes inner shaft core and outer body, be convenient for to silicon nitride pipe one shot forming, not only reduce raw materials consumption, operating personnel's intensity of labour has been reduced, and the production cycle of silicon nitride pipe has been shortened, the production efficiency of silicon nitride pipe has been improved, through the detachable connection structure who utilizes first connection body and second connection body, make the silicon nitride pipe finished product after the shaping easy drawing of patterns and convenient operation. The utility model discloses a silicon nitride pipe forming die, simple structure not only, reasonable in design, the drawing of patterns is convenient, and is high to the machining efficiency of silicon nitride pipe moreover, and the machining precision is high, and can effectively avoid the waste of raw and other materials, has greatly reduced the manufacturing cost of silicon nitride pipe, has good market perspective.
Furthermore, an inserting groove is formed in the side wall of the longitudinal section of the first connecting pipe body, and an inserting head is fixed to the side wall of the longitudinal section of the second connecting pipe body and detachably inserted into the inserting groove.
The beneficial effect who adopts above-mentioned technical scheme to produce is for this mould overall structure compactness is strong, and stability is good, and the drawing of patterns is convenient.
Furthermore, the inserting grooves and the inserting joints are multiple, and the inserting grooves and the inserting joints are respectively and uniformly arranged on the corresponding first connecting pipe body and the corresponding second connecting pipe body.
The beneficial effect who adopts above-mentioned technical scheme to produce is, has further improved this mould overall structure's stability.
Furthermore, a first variable diameter portion is formed on the inner side wall of one end of each of the first connecting pipe body and the second connecting pipe body, and the first variable diameter portion and the second external thread structure are arranged in the same direction.
The beneficial effects that adopt above-mentioned technical scheme to produce are for this mould structural design is reasonable, has effectively improved this mould to the machining efficiency of silicon nitride pipe, and one shot forming only needs the grinding machine polishing can obtain the silicon nitride pipe finished product.
Furthermore, a second diameter-changing part is formed on the inner wall of the first connector close to the opening end of the first connector, and the first internal thread structure is formed on the inner wall of the second diameter-changing part.
The beneficial effect that adopts above-mentioned technical scheme to produce is for this mould structural design is reasonable, and is high to the machining precision of silicon nitride pipe.
Furthermore, a third diameter-changing part is formed on the inner wall of the second connector close to one end of the second connector, and the second internal thread structure is formed on the inner wall of the third diameter-changing part.
The beneficial effect that adopts above-mentioned technical scheme to produce is for this mould structural design is reasonable, and is high to the machining precision of silicon nitride pipe.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a silicon nitride tube forming mold according to the present invention;
fig. 2 is an exploded view of a silicon nitride tube forming mold according to the present invention;
fig. 3 is a schematic structural diagram of an outer tube body in a silicon nitride tube forming mold according to the present invention.
Wherein: 1-an outer pipe body, 11-a first connecting pipe body, 111-a splicing groove, 12-a second connecting pipe body, 121-a splicing head, 13-a first external thread structure, 14-a second external thread structure, 2-a first connecting head, 3-a first internal thread structure, 4-a second connecting head, 5-a second internal thread structure, 6-an inner shaft core, 7-a first diameter changing part, 8-a second diameter changing part and 9-a third diameter changing part.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The utility model discloses a silicon nitride pipe forming die, include:
the outer pipe body 1, the outer pipe body 1 includes the first connecting pipe body 11 and the second connecting pipe body 12 that can be dismantled and connected, and the cross section of the first connecting pipe body 11 and the cross section of the second connecting pipe body 12 are both arc structures, form the cross section to be the round hollow chamber between the first connecting pipe body 11 and the second connecting pipe body 12, form the first external thread structure 13 and the second external thread structure 14 on the lateral wall of the first connecting pipe body 11 and the second connecting pipe body 12 both ends separately;
the first connector 2 is of a U-shaped structure, a first internal thread structure head 3 is formed on the inner wall of the first connector 2 close to the opening end of the first connector, and the first internal thread structure head 3 is in threaded connection with a first external thread structure 13;
the second connector 4 is a tubular structure with two open ends, a second internal thread structure 5 is formed on the inner wall of the second connector 4 close to one end of the second connector, and the second internal thread structure 5 is in threaded connection with a second external thread structure 14;
the inner shaft core 6 is arranged in the hollow cavity and is coaxially arranged with the hollow cavity, and the diameter of the inner shaft core 6 is smaller than the aperture of the hollow cavity.
According to the utility model discloses an optional embodiment, has seted up inserting groove 111 on the longitudinal section lateral wall of first connecting tube body 11, is fixed with connector 121 on the longitudinal section lateral wall of second connecting tube body 12, and connector 121 detachably pegs graft in inserting groove 111 to it is strong to make this mould overall structure compactness, and stability is good, and the drawing of patterns is convenient.
According to the utility model discloses an optional embodiment, inserting groove 111 and bayonet joint 121 are a plurality ofly, and a plurality of inserting grooves 111 and a plurality of bayonet joint 121 evenly arrange respectively on the first connecting pipe body 11 and the second connecting pipe body 12 that correspond to this mould overall structure's stability has further been improved.
According to the utility model discloses an optional embodiment, all be formed with first variable diameter portion 7 on the inside wall of first connecting tube body 11 and 12 one ends of second connecting tube body, and first variable diameter portion 7 arranges with second external thread structure 14 syntropy to make this mould structural design reasonable, effectively improved this mould to the machining efficiency of silicon nitride pipe, one shot forming only needs the grinding machine polishing can obtain silicon nitride pipe finished product.
According to the utility model discloses an optional embodiment, be formed with second variable diameter portion 8 near its opening end department on the 2 inner walls of first connector, first inner thread structure head 3 is formed on 8 inner walls of second variable diameter portion to make this mould structural design reasonable, it is high to the machining precision of silicon nitride pipe.
According to the utility model discloses an optional embodiment, be close to its one end on the 4 inner walls of second connector and be formed with third variable diameter portion 9, second internal thread structure 5 is formed on the 9 inner walls of third variable diameter portion to make this mould structural design reasonable, it is high to the machining precision of silicon nitride pipe.
The utility model discloses a silicon nitride pipe forming die, through the connection structure who utilizes first connector and outer body, can make this mould form a confined cavity structure, through the connection structure who utilizes second connector and outer body, make this mould overall structure compactness stronger, and good stability, through the mounting structure who utilizes inner axle core and outer body, be convenient for to silicon nitride pipe one shot forming, raw materials consumption has not only been reduced, operating personnel's intensity of labour has been reduced, and the production cycle of silicon nitride pipe has been shortened, the production efficiency of silicon nitride pipe has been improved, through the connection structure that can dismantle who utilizes first connection body and second connection body, make the silicon nitride pipe finished product after the shaping easily drawing of patterns and convenient operation. The die is simple in structure, reasonable in design, convenient to demould, high in machining efficiency and machining precision of the silicon nitride tube, capable of effectively avoiding waste of raw materials, greatly reducing production cost of the silicon nitride tube and good in market application prospect.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (6)
1. The utility model provides a silicon nitride pipe forming die which characterized in that includes:
the connecting structure comprises an outer pipe body (1), wherein the outer pipe body (1) comprises a first connecting pipe body (11) and a second connecting pipe body (12) which are detachably connected, the cross sections of the first connecting pipe body (11) and the second connecting pipe body (12) are both arc-shaped structures, a hollow cavity with a circular cross section is formed between the first connecting pipe body (11) and the second connecting pipe body (12), and a first external thread structure (13) and a second external thread structure (14) are respectively formed on the outer side walls of the two ends of the first connecting pipe body (11) and the second connecting pipe body (12);
the first connecting head (2) is of a U-shaped structure, a first internal thread structure head (3) is formed on the inner wall of the first connecting head (2) close to the opening end of the first connecting head, and the first internal thread structure head (3) is in threaded connection with the first external thread structure (13);
the second connector (4) is a tubular structure with two open ends, a second internal thread structure (5) is formed on the inner wall of the second connector (4) close to one end of the second connector, and the second internal thread structure (5) is in threaded connection with the second external thread structure (14);
the inner shaft core (6), the inner shaft core (6) install in well cavity, and with well cavity coaxial line arranges, just the diameter of inner shaft core (6) is less than well cavity aperture.
2. The silicon nitride tube forming die of claim 1, wherein a plugging groove (111) is formed in a side wall of a longitudinal section of the first connecting tube body (11), a plugging head (121) is fixed to a side wall of a longitudinal section of the second connecting tube body (12), and the plugging head (121) is detachably plugged into the plugging groove (111).
3. The silicon nitride tube forming die of claim 2, wherein the number of the inserting grooves (111) and the number of the inserting connectors (121) are plural, and the plural inserting grooves (111) and the plural inserting connectors (121) are respectively and uniformly arranged on the corresponding first connecting tube body (11) and the second connecting tube body (12).
4. The silicon nitride tube forming die according to claim 1, wherein a first diameter-changing portion (7) is formed on an inner side wall of one end of each of the first connecting tube body (11) and the second connecting tube body (12), and the first diameter-changing portion (7) and the second external thread structure (14) are arranged in the same direction.
5. The silicon nitride tube forming die according to any one of claims 1 to 4, wherein a second diameter-changing portion (8) is formed on the inner wall of the first connecting head (2) near the opening end thereof, and the first female thread structure head (3) is formed on the inner wall of the second diameter-changing portion (8).
6. The silicon nitride tube forming die of claim 5, wherein a third diameter-changing portion (9) is formed on the inner wall of the second connector (4) near one end thereof, and the second internal thread structure (5) is formed on the inner wall of the third diameter-changing portion (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121102544.0U CN214687187U (en) | 2021-05-21 | 2021-05-21 | Silicon nitride tube forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121102544.0U CN214687187U (en) | 2021-05-21 | 2021-05-21 | Silicon nitride tube forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214687187U true CN214687187U (en) | 2021-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121102544.0U Active CN214687187U (en) | 2021-05-21 | 2021-05-21 | Silicon nitride tube forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214687187U (en) |
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2021
- 2021-05-21 CN CN202121102544.0U patent/CN214687187U/en active Active
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