CN215283463U - Tool for forming composite material shaft tube - Google Patents
Tool for forming composite material shaft tube Download PDFInfo
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- CN215283463U CN215283463U CN202121552114.9U CN202121552114U CN215283463U CN 215283463 U CN215283463 U CN 215283463U CN 202121552114 U CN202121552114 U CN 202121552114U CN 215283463 U CN215283463 U CN 215283463U
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- material shaft
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Abstract
The utility model belongs to the technical field of composite material forming equipment, in particular to a tool for forming a composite material shaft tube, which comprises a forming die and a demoulding assembly for separating the composite material shaft tube from the forming die; the forming die comprises a cylindrical core die large end and a core die small end which is coaxially detachably inserted at the left end of the core die large end, the core die small end is provided with a first boss or a first groove, the core die small end is provided with a first internal thread through hole along the axial direction, and the right end of the core die large end is provided with a second boss; the drawing of patterns subassembly includes the base, sets up location snap ring and threaded rod on the base right side, the threaded rod be equipped with first internal thread through-hole screw-thread fit's external screw thread, can withdraw from the combined material central siphon with the mandrel tip from the left end during rotatory threaded rod, the location snap ring is used for following the axial location combined material central siphon of holding, the mandrel main aspects of being convenient for withdraws from the combined material central siphon from the right-hand member under thrust effect, this frock simple structure, convenient to use and shaping drawing of patterns are efficient.
Description
Technical Field
The utility model belongs to the technical field of combined material former, specifically be a be used for fashioned frock of combined material central siphon.
Background
The transmission shaft is widely applied to various fields of engineering machinery, wind power generation, locomotives, ship propulsion devices, aerospace and the like. With the development of the times, various industries put higher and higher demands on transmission shafts, such as weight reduction, improvement of corrosion resistance, maintenance-free, noise reduction, and the like. The composite material is gradually applied to a transmission shaft due to a series of advantages of high specific strength, high specific stiffness, good corrosion resistance and the like.
At present, a composite material transmission shaft mainly comprises a composite material shaft tube and metal flanges arranged at two ends of the shaft tube. Typical joining means include gluing, mechanical joining, and hybrid means. Wherein the glue joint is widely applied because the composite material shaft tube is not damaged. However, in this form of shaft tube, the strength of the connection is mainly ensured by the strength of the adhesive bond between the composite shaft tube and the metal flange, and the torque borne by the composite drive shaft is limited. In order to increase the torque between the composite material shaft tube and the metal flange, the composite material shaft tube and the metal flange which are matched in a key connection mode are provided, namely, concave parts or convex parts are arranged at the two axial ends of the composite material shaft tube, but due to the structural limitation of a forming tool in the prior art, the difficulty is increased for forming and demolding of the shaft tube.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art, the utility model provides a be used for fashioned frock of combined material central siphon, this kind of frock not only can effectively the shaping combined material central siphon, the drawing of patterns of being convenient for moreover.
In order to realize the purpose, the utility model discloses a technical scheme is: a tool for forming a composite material shaft tube is provided, wherein a first convex part or a first concave part is arranged at the left end of the composite material shaft tube, and a second convex part is arranged at the right end of the composite material shaft tube; the tool comprises a forming die and a demoulding assembly for separating the composite material shaft tube from the forming die, wherein the composite material shaft tube is formed on the peripheral surface of the forming die; the forming die comprises a cylindrical core die large end and a core die small end which is coaxially detachably inserted at the left end of the core die large end, the core die small end is provided with a first boss or a first groove for forming a first convex part or a first concave part, the core die small end is provided with a first internal thread through hole along the axial direction, and the right end of the core die large end is provided with a second boss for forming a second convex part; the demoulding component comprises a base, a threaded rod and a positioning snap ring arranged on the right side of the base. The threaded rod is provided with an external thread which is in threaded fit with the first internal thread through hole, and the inner diameter of the composite material shaft tube is smaller than or equal to the inner diameter of the positioning snap ring and smaller than or equal to the outer diameter of the composite material shaft tube; during demoulding, the composite material shaft tube and the forming die are placed in the base and are radially limited by the base, the right end of the composite material shaft tube coaxially abuts against the positioning clamping ring, and the threaded rod is inserted into the first internal thread through hole and rotates to enable the small end of the core die to withdraw from the composite material shaft tube from the left side. The large end of the core mold is pushed to the right from the left end, so that the large end of the core mold penetrates out of the positioning snap ring and exits from the composite material shaft tube.
As preferred, still including dismantling the fixing support who sets up the pedestal left end again, the last second internal thread through-hole along left right direction that is equipped with of fixing support, second internal thread through-hole with threaded rod external screw-thread fit, the back is demolishd to the mandrel tip, and is fixed with the fixing support installation to make the threaded rod pass fixing support's second internal thread hole, the right-hand member and the mandrel butt of threaded rod contact, rotatory threaded rod, and then can realize propelling movement mandrel butt right and make the mandrel butt wear out the location snap ring and withdraw from the combined material central siphon. Furthermore, the number of the second internal thread through holes is a plurality of and is evenly distributed, and the threaded rods correspond to the second internal thread through holes.
Preferably, the right end face of the small end of the core mold is provided with 1 or more first protrusions or first recesses, and the left end face of the large end of the core mold is provided with second recesses or second protrusions which are mutually inserted and matched with the first protrusions or first recesses. By optimizing the method, the effective insertion of the small end of the core mold and the large end of the core mold can be ensured, and the small end of the core mold smoothly exits the composite material shaft tube under the action of the threaded rod when the mold is removed.
Preferably, the number of the first internal thread through holes is 1, and the first internal thread through holes are coaxially arranged with the small end of the core die; or the first internal thread through holes are more than 2 and evenly arranged around the circumference, and the quantity of the threaded rods and the fixed support threaded holes is the same as that of the first internal thread through holes.
In order to reduce the weight of the forming die, the large end of the core die is preferably partially hollow.
Preferably, the holding tank has been seted up at the top of base, the cell wall left end of holding tank be equipped with be used for with during the drawing of patterns lie in the holding tank first convex part or first concave part cartridge complex third recess or third boss, the cell wall right-hand member of holding tank be equipped with be used for with during the drawing of patterns lie in the holding tank second convex part cartridge complex fourth recess, through this step optimization, during the drawing of patterns, can prevent that combined material central siphon and mandrel main aspects from taking place to rotate or roll in the holding tank to guarantee the drawing of patterns smoothly.
Further preferred, the cell wall right-hand member of holding tank is equipped with the axial arc recess of perpendicular to, during the drawing of patterns, and the location snap ring cartridge is in the arc recess, location snap ring and arc recess clearance fit, through this step optimization, can select and replace suitable location snap ring according to the radial dimension of mandrel main aspects to from the spacing combined material central siphon of right side axial, make things convenient for the mandrel main aspects to withdraw from the combined material central siphon from the right side.
In order to be able to completely withdraw the small end of the core mold from the composite material shaft tube by means of the threaded rod, it is preferable that the covering length of the thread on the threaded rod in the axial direction is not less than the axial length of the small end of the core mold.
Preferably, the threaded rod is provided at its right end with a buffer medium, such as rubber, to avoid damage to the right end face of the large end of the core mold when the small end of the core mold and the large end of the core mold are removed.
Compared with the prior art, the utility model discloses the technological effect who gains does: the application provides a be used for fashioned frock of combined material central siphon, simple structure, the operation of being convenient for and shaping and drawing of patterns are efficient, can guarantee to be used for making the combined material central siphon of both ends area boss, also can guarantee requirements such as fashioned combined material central siphon surface quality, internal quality, and the operation of being convenient for simultaneously realizes the effective drawing of patterns of combined material central siphon.
Drawings
Fig. 1 is a schematic structural view of a forming mold in an embodiment of the present invention.
Fig. 2 is a schematic structural view of a small end of a core mold of a forming mold according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a large end of a core mold of a forming mold according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a base in the demolding assembly in an embodiment of the present invention.
Fig. 5 is a schematic diagram of the demolding in the embodiment of the present invention.
Fig. 6 is a schematic view of a threaded rod and a buffer medium according to an embodiment of the present invention.
Fig. 7 is a schematic drawing of the mandrel big end demolding in the embodiment of the present invention.
The reference numbers in the figures are: 1. the core die comprises a core die small end, 101, a first boss, 2, a core die large end, 201, a second boss, 3, a first internal thread through hole, 4, a second protrusion, 5, a threaded rod, 6, a base, 7, a third groove, 8, a fourth groove, 9, an arc-shaped groove, 10, an accommodating groove, 11, a positioning snap ring, 12, a composite material shaft tube, 13, a buffer medium and 14, and a fixed support.
Detailed Description
The utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "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 used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being 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", etc. 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," "second," etc. 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 otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The embodiment of the present invention is shown in fig. 1 to 7, which is a tool for forming a composite material shaft tube 12, wherein a first protrusion or a first recess (in this embodiment, a first protrusion) is disposed at the left end of the composite material shaft tube 12, and a second protrusion is disposed at the right end; the tool comprises a forming die and a demoulding assembly for separating the composite material shaft tube 12 from the forming die, wherein the composite material shaft tube 12 is formed on the peripheral surface of the forming die; the forming die comprises a cylindrical core die large end 2 and a core die small end 1 which is coaxially and detachably inserted at the left end of the core die large end 2, wherein the core die small end 1 is provided with a first boss 101 or a first groove for forming a first convex part or a first concave part, the core die small end 1 is provided with a first internal thread through hole 3 along the axial direction, and the right end of the core die large end 2 is provided with a second boss 201 for forming a second convex part; the demolding assembly comprises a base 6, a positioning snap ring 11 and a threaded rod 5, wherein the positioning snap ring 11 is arranged on the right side of the base 6, the threaded rod 5 is provided with an external thread in threaded fit with the first internal thread through hole 3, and the inner diameter of the composite material shaft tube 12 is less than or equal to the inner diameter of the positioning snap ring 11 and less than or equal to the outer diameter of the composite material shaft tube 12; during demoulding, the composite material shaft tube 12 and the forming die are placed in the base 6 and are radially limited by the base 6, the right end of the composite material shaft tube 12 is coaxially abutted against the positioning snap ring 11, and the threaded rod 5 is inserted into the first internal thread through hole 3 and rotates to enable the core die small end 1 to be withdrawn from the composite material shaft tube 12 from the left side. Pushing the mandrel main end 2 from the left end right can make the mandrel main end 2 wear out location snap ring 11 and withdraw from combined material central siphon 12, and is concrete, still including dismantling the fixing support who sets up the base left end again, be equipped with the second internal thread through-hole along the left and right sides direction on fixing support 14, second internal thread through-hole with threaded rod external screw-thread fit, the back is demolishd to the mandrel tip, and it is fixed with fixing support 14 installation to make the threaded rod pass fixing support 14's second internal thread hole, the right-hand member of threaded rod and mandrel main end contact, rotatory threaded rod, and then can realize pushing the mandrel main end right and make the mandrel main end wear out the location snap ring and withdraw from combined material central siphon.
The concrete connection mode of the core mould big end 2 and the core mould small end 1 is preferably as follows: the right end face of the small end 1 of the core mold is provided with 1 or more first bulges or first recesses, and the left end face of the large end 2 of the core mold is provided with second recesses or second bulges 4 which are mutually inserted and matched with the first bulges or first recesses. The connection mode can ensure the effective insertion of the small end 1 of the core mould and the large end 2 of the core mould, and the small end 1 of the core mould can smoothly exit the composite material shaft tube 12 under the action of the threaded rod 5 when the mould is removed. In the embodiment, considering the simplification of the core mold preparation method, the core mold small end 1 is only provided with 1 first recess (the first protrusion may be cylindrical or polygonal) and is coaxially arranged with the core mold large end 2, the core mold large end 2 is correspondingly provided with 1 second protrusion 4, when the core mold large end is used, the core mold small end 1 is sleeved on the second protrusion 4 of the core mold large end 2 through the first recess, the first recess and the second protrusion 4 are in clearance fit, and the connected core mold large end 2 is coaxial with the core mold small end 1 and is integrally cylindrical.
In this embodiment, the number of the first internally threaded through holes 3 is preferably 1 and the first internally threaded through holes are provided coaxially with the core die small end 1.
The cell wall right-hand member of holding tank 10 is equipped with the axial arc recess 9 of perpendicular to, during the drawing of patterns, and 11 cartridges of location snap ring are in arc recess 9, and location snap ring 11 and the clearance fit of arc recess 9 can select and replace suitable location snap ring 11 according to the radial dimension of mandrel main aspects 2 through detachable location snap ring 11 to from the spacing combined material central siphon 12 of right side axial, make things convenient for mandrel main aspects 2 to withdraw from combined material central siphon 12 from the right side.
In order to completely withdraw the core mold small end 1 from the composite material shaft tube 12 by the threaded rod 5, the covering length of the thread on the threaded rod 5 in the axial direction is not less than the axial length of the core mold small end 1.
Preferably, the threaded rod 5 has a buffer medium 13, such as rubber, at its right end to prevent damage to the right end face of the large core when the small core and the large core are removed.
The specific working method of the tooling for forming the composite material shaft tube 12 of this embodiment is (this embodiment provides only one of the forming methods for further explaining the forming mold of this application, but the forming method is not limited, for example, the following method is given to lay the prepreg carbon fiber cloth as the raw material layer by layer, but the prepreg carbon fiber bundle or prepreg carbon fiber tape may also be used to wind, or wind the carbon fiber tape first and then dip the resin, etc.):
when the composite material shaft tube 12 is formed, the core mould small end 1 is sleeved on the core mould large end 2 to form a forming mould, then the pre-impregnated carbon fiber cloth is laid on the forming mould layer by layer, wherein the direction of the carbon fiber is along the axial direction of the core mould large end 2, after the laying is completed according to the set number of layers, the weak part is filled with short carbon fibers to increase the strength as required, and then the composite material shaft tube 12 is obtained through curing forming.
Finally, a step of demoulding is carried out, wherein the specific demoulding method comprises the following steps: putting the composite material shaft tube 12 formed by curing and a forming mold into the accommodating groove 10 of the base 6, controlling the first convex part of the composite material shaft positioned in the accommodating groove 10 to be aligned into the third groove 7 and the second convex part to be aligned into the fourth groove 8, or selecting a positioning snap ring 11 with a proper size and inserting the positioning snap ring 11 into the arc-shaped groove 9, wherein the positioning snap ring 11 just abuts against the right end of the composite material shaft tube 12; then the threaded end of the threaded rod 5 is inserted into the first internally threaded through hole 3 and the threaded rod 5 is rotated until the mandrel small end 1 is completely withdrawn from the composite material shaft tube 12. Then, the fixed support 14 is installed, the fixed support 14 and the base are controlled to be fixed relatively, the threaded rod 5 is inserted into the second internal threaded hole of the fixed support 14, the threaded rod 5 is rotated, thrust is applied to the left end of the core mold large end 2 from the left side, the core mold large end 2 is made to withdraw from the right end of the composite material shaft tube 12, and demolding is completed.
In order to reduce the weight of the forming die, the large core die end 2 is of a partially hollow structure, and particularly, the left end of the large core die end 2 is a closed end and has high enough strength so as not to be broken by the threaded rod 5 during demolding.
The frock simple structure of this embodiment, the operation of being convenient for and shaping and drawing of patterns are efficient, can guarantee to be used for making the combined material central siphon 12 of both ends area boss, also can guarantee requirements such as fashioned combined material central siphon 12 surface quality, internal quality, and the operation of being convenient for simultaneously realizes the effective drawing of patterns of combined material central siphon 12.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (10)
1. The utility model provides a be used for fashioned frock of combined material central siphon, wherein the left end of combined material central siphon is equipped with first convex part or first concave part, and the right-hand member is equipped with second convex part, its characterized in that: the tool comprises a forming die and a demoulding assembly for separating the composite material shaft tube from the forming die, wherein the composite material shaft tube is formed on the peripheral surface of the forming die; the forming die comprises a cylindrical core die large end and a core die small end which is coaxially detachably inserted at the left end of the core die large end, the core die small end is provided with a first boss or a first groove for forming a first convex part or a first concave part, the core die small end is provided with a first internal thread through hole along the axial direction, and the right end of the core die large end is provided with a second boss for forming a second convex part;
the demoulding component comprises a base, a threaded rod and a positioning clamping ring arranged on the right side of the base; the threaded rod is provided with an external thread which is in threaded fit with the first internal thread through hole, and the inner diameter of the composite material shaft tube is smaller than or equal to the inner diameter of the positioning snap ring and smaller than or equal to the outer diameter of the composite material shaft tube; when the die is removed, the composite material shaft tube and the forming die are placed in the base and are radially limited by the base, the right end of the composite material shaft tube coaxially abuts against the positioning clamping ring, the threaded rod is inserted into the first internal thread through hole and rotates to enable the small end of the core die to exit from the composite material shaft tube from the left side, and the large end of the core die is pushed to the right from the left end to enable the large end of the core die to penetrate out of the positioning clamping ring and exit from the composite material shaft tube.
2. The tooling for forming the composite material shaft tube according to claim 1, wherein: still including dismantling the fixing support who sets up at the base left end, the last second internal thread through-hole that is equipped with of fixing support, the external screw thread fit of second internal thread through-hole and threaded rod, the back is demolishd to the mandrel tip, and is fixed with the fixing support installation to make the threaded rod pass fixing support's second internal thread hole, the right-hand member of threaded rod and the left end contact of mandrel tip, rotatory threaded rod can push away the mandrel tip right and make the mandrel tip wear out the location snap ring and withdraw from the combined material central siphon.
3. The tooling for forming the composite material shaft tube according to claim 2, is characterized in that: the quantity of second internal thread through-hole is a plurality of and evenly distributed, and the threaded rod is corresponding with second internal thread through-hole.
4. The tooling for forming the composite material shaft tube according to claim 1, wherein: the end face of the right end of the small end of the core mold is provided with 1 or more first bulges or first depressions, and the end face of the left end of the large end of the core mold is provided with second depressions or second bulges which are mutually inserted and matched with the first bulges or the first depressions.
5. The tooling for forming the composite material shaft tube according to claim 1, wherein: the number of the first internal thread through holes is 1, and the first internal thread through holes are coaxially arranged with the small end of the core mold; or the first internal thread through holes are more than 2 and evenly arranged around the circumference, and the number of the threaded rods is the same as that of the first internal thread through holes.
6. The tooling for forming the composite material shaft tube according to claim 1, wherein: the big end of the core mould is of a partially hollow structure.
7. The tooling for forming the composite material shaft tube according to claim 1, wherein: the holding tank has been seted up at the top of base, and the cell wall left end of holding tank is equipped with and is used for being located the first convex part or the first concave part cartridge complex third recess or third boss of holding tank during with the drawing of patterns, and the cell wall right-hand member of holding tank is equipped with and is used for being located the second convex part cartridge complex fourth recess of holding tank during with the drawing of patterns.
8. The tooling for forming the composite material shaft tube according to claim 7, is characterized in that: the cell wall right-hand member of holding tank is equipped with the axial arc recess of perpendicular to, and during the drawing of patterns, location snap ring cartridge is in the arc recess, location snap ring and arc recess clearance fit.
9. The tooling for forming the composite material shaft tube according to claim 1, wherein: the covering length of the screw thread on the threaded rod along the axial direction is not less than the axial length of the small end of the core mold.
10. The tooling for forming the composite material shaft tube according to claim 1, wherein: the right end of the threaded rod is provided with a buffer medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552114.9U CN215283463U (en) | 2021-07-08 | 2021-07-08 | Tool for forming composite material shaft tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552114.9U CN215283463U (en) | 2021-07-08 | 2021-07-08 | Tool for forming composite material shaft tube |
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| Publication Number | Publication Date |
|---|---|
| CN215283463U true CN215283463U (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121552114.9U Active CN215283463U (en) | 2021-07-08 | 2021-07-08 | Tool for forming composite material shaft tube |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593133A (en) * | 2022-02-14 | 2022-06-07 | 江苏集萃碳纤维及复合材料应用技术研究院有限公司 | Composite material axle tube connected with metal joint |
-
2021
- 2021-07-08 CN CN202121552114.9U patent/CN215283463U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114593133A (en) * | 2022-02-14 | 2022-06-07 | 江苏集萃碳纤维及复合材料应用技术研究院有限公司 | Composite material axle tube connected with metal joint |
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