CN215750264U - Carbon fiber blade forming die - Google Patents
Carbon fiber blade forming die Download PDFInfo
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- CN215750264U CN215750264U CN202022556506.4U CN202022556506U CN215750264U CN 215750264 U CN215750264 U CN 215750264U CN 202022556506 U CN202022556506 U CN 202022556506U CN 215750264 U CN215750264 U CN 215750264U
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Abstract
The utility model belongs to the technical field of mechanical design, and relates to a carbon fiber blade forming die which comprises an upper die (7), a lower die (8), a blade tip sliding block (9) and a blade root sliding block (10); the blade tip sliding block (9) is fixed on the lower die (8), and the shape of the blade tip sliding block follows the shape of a blade tip wing; the width of the blade root sliding block (10) is consistent with the blade root forming part, and the blade root sliding block consists of a left sliding block (15) and a right sliding block (16) which are spliced left and right; the left slide block (15) and the right slide block (16) are respectively fixed with the upper die and the lower die, the parallel grade of the upper surface and the lower surface is processed according to grade 7, and the verticality grade of the flange and the die binding surface is processed according to grade 7; the mould provided by the utility model can ensure that the size meets the requirement after the blade root is formed, and the integrity of the blade tip is ensured when the blade is opened.
Description
Technical Field
The utility model belongs to the technical field of mechanical design, and relates to a carbon fiber blade forming die.
Background
The most cost-effective method for verifying the design result of the aircraft is wind tunnel verification. The scaling model of the aircraft is installed in a wind tunnel test section, and basic data required by aircraft design and improvement, including pressure distribution, drag coefficient, lift coefficient and the like, are obtained through corresponding test means.
The propeller blade is applied to a wind tunnel test to test propeller basic data as shown in figure 1, and the appearance of the blade is as follows: 4, the blade is small, narrow and thin in appearance, and due to the space limitation of a hub, the diameter of the root of the blade is only 22mm, the overall length of the blade is 460mm, the width of the tip is 15mm, and the thickness delta of the trailing edge of the tip is 0.35 mm.
The propeller blade is difficult to form, the forming difficulty of the blade root is high, the forming of the blade root cannot be guaranteed by the existing blade forming die, and the thickness of the rear edge of the blade tip is too small, so that the blade tip is extremely easy to deform or damage when the blade is opened.
Disclosure of Invention
The purpose of the utility model is: the carbon fiber blade forming mold is provided to solve the technical problem that the existing mold cannot form the special blade.
In order to solve the technical problem, the technical scheme of the utility model is as follows:
a carbon fiber blade forming die comprises an upper die 7, a lower die 8, a blade tip sliding block 9 and a blade root sliding block 10;
the blade tip sliding block 9 is fixed on the lower die 8, and the shape of the blade tip sliding block follows the shape of a blade tip wing;
the width of the blade root sliding block 10 is consistent with the blade root forming part, and the blade root sliding block is composed of a left sliding block 15 and a right sliding block 16 which are spliced left and right;
mounting flanges fixed with the upper die and the lower die are respectively arranged at the upper part and the lower part of the outer sides of the left slider 15 and the right slider 16;
the parallel grade of the upper surface and the lower surface of the left sliding block 15 and the right sliding block 16 is processed according to grade 7, and the verticality grade of the flange and the die binding surface is processed according to grade 7.
The length of the tip sliding block 9 is 100-130 mm from the tip to the blade body.
The left slider 15 and the right slider 16 are integrally machined and molded, and are linearly cut in the middle to ensure the size of the left and right molding contact surfaces.
The outer sides of the left slide block 15 and the right slide block 16 and the middle positions of the left and right contact parts of the upper and lower dies form a concave structure. The purpose is as follows: a gap is left; the contact area between the sliding block and the upper die and between the sliding block and the upper die in the inserting process are reduced, so that the sliding block and the upper die and the lower die are easier to operate in the matching work.
The blade tip sliding block 9 is fixed on the lower die 8 through an internal thread cylindrical pin 12 and an inner hexagonal flat round head screw 13.
Preferably, the left slider 15 and the right slider 16 are fixed on the upper and lower molds by bolts.
Preferably, the material of the die is 45# or 35CrMn steel.
According to the mold opening method of the carbon fiber blade forming mold,
the mold opening method for the carbon fiber blade forming mold after blade forming comprises the following steps:
step one, starting an upper die 7 by using a die opening device 11;
step two, starting the left sliding block 15 and the right sliding block 16;
thirdly, removing the internal thread cylindrical pin 12 and the inner hexagonal flat round head screw 13, starting the blade tip sliding block 9 through the threaded hole 14 by using the bolt, and firstly starting the blade tip sliding block 9 for releasing the internal stress at the blade tip;
and step four, lifting the metal blade handle, lifting the whole blade, and completing mold opening.
The utility model has the beneficial effects that: the carbon fiber blade forming die can ensure that the size meets the requirement after the blade root is formed, and the integrity of the blade tip when the blade is opened.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the embodiment of the present invention will be briefly explained. It is obvious that the drawings described below are only some embodiments of the utility model, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic view of a propeller;
FIG. 2 is a schematic view of a blade root;
FIG. 3 is a schematic view of an integral mold;
FIG. 4 is a schematic view of a tip slider;
FIG. 5 is a schematic view of a slider;
FIG. 6 is a schematic view of the overall machining of a slider;
the mold comprises 1-blade tip, 2-blade body, 3-blade root, 4-metal blade handle, 5-carbon beam, 6-skin, 7-upper mold, 8-lower mold, 9-blade tip slide block, 10-blade root slide block, 11-mold opening device, 12-internal thread cylindrical pin, 13-inner hexagonal flat round head screw, 14-threaded hole for mold opening, 15-left slide block, 16-right slide block, L is blade tip slide block length, and W is blade root slide block width.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Features of various aspects of embodiments of the utility model will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. The following description of the embodiments is merely intended to better understand the present invention by illustrating examples thereof. The present invention is not limited to any particular arrangement or method provided below, but rather covers all product structures, any modifications, alterations, etc. of the method covered without departing from the spirit of the utility model.
In the drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention.
As shown in fig. 3, the carbon fiber blade forming mold of the present invention includes an upper mold 7, a lower mold 8, a blade tip slider 9, and a blade root slider 10; the material of the die can be 45# or 35CrMn steel;
the tip slider 9 is fixed on the lower die 8 through an internal thread cylindrical pin 12 and an inner hexagonal flat round head screw 13, as shown in fig. 4, the tip slider 9 is shaped like a blade tip wing along the shape of the blade, and the length of the tip slider is 130mm from the blade tip to the blade body;
the width W of the blade root slide block 10 is consistent with the blade root forming part
The device consists of a left slide block 15 and a right slide block 16 which are spliced left and right; as shown in fig. 4 and 5, mounting flanges fixed with the upper die and the lower die are respectively arranged on the upper and lower sides of the outer sides of the left slider 15 and the right slider 16; the parallel grade of the upper surface and the lower surface of the left sliding block 15 and the right sliding block 16 is processed according to grade 7, and the verticality grade of the flange and the binding surface of the die is processed according to grade 7; in order to ensure the size of the left and right forming contact surfaces, the left slider 15 and the right slider 16 are integrally formed and then are cut in the middle by a linear cutting method.
The outer sides of the left slide block 15 and the right slide block 16 and the middle positions of the left and right contact parts of the upper and lower dies form a concave structure; so that a gap is left at the contact part for reducing the contact area between the slide block and the upper and lower dies in the insertion process, and the slide block and the upper and lower dies are easier to operate in the matching work.
The blade tip sliding block 9 is fixed on the lower die 8 through an internal thread cylindrical pin 11 and an inner hexagonal flat round head screw 12.
The left slider 15 and the right slider 16 are fixed on the upper die and the lower die through bolts.
The mold opening method of the carbon fiber blade forming mold comprises the following steps:
step one, starting an upper die 7 by using a die opening device 11;
step two, starting the left sliding block 15 and the right sliding block 16;
thirdly, removing the internal thread cylindrical pin 12 and the inner hexagonal flat round head screw 13, and starting the blade tip sliding block 9 through the threaded hole 14 by using the bolt to release the internal stress at the blade tip;
and step four, lifting the metal blade handle, lifting the whole blade, and successfully opening the die.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (7)
1. The utility model provides a carbon fiber blade forming die which characterized in that: the die comprises an upper die (7), a lower die (8), a blade tip sliding block (9) and a blade root sliding block (10);
the blade tip sliding block (9) is fixed on the lower die (8), and the shape of the blade tip sliding block follows the shape of a blade tip wing;
the width of the blade root sliding block (10) is consistent with the blade root forming part, and the blade root sliding block consists of a left sliding block (15) and a right sliding block (16) which are spliced left and right;
mounting flanges fixed with the upper die and the lower die are respectively arranged at the upper and lower parts of the outer sides of the left slider (15) and the right slider (16);
the parallel grade of the upper surface and the lower surface of the left sliding block (15) and the right sliding block (16) is processed according to grade 7, and the verticality grade of the flange and the die binding surface is processed according to grade 7.
2. The carbon fiber blade forming die of claim 1, wherein: the length of the tip sliding block (9) is 100-130 mm from the tip to the blade body.
3. The carbon fiber blade forming die of claim 1, wherein: and the left sliding block (15) and the right sliding block (16) are integrally processed and molded and then are subjected to linear cutting in the middle.
4. The carbon fiber blade forming die of claim 1, wherein: the outer sides of the left sliding block (15) and the right sliding block (16) and the middle positions of the left and right contact parts of the upper and lower dies form a concave structure.
5. The carbon fiber blade forming die of claim 1, wherein: the blade tip sliding block (9) is fixed on the lower die (8) through an internal thread cylindrical pin (12) and an inner hexagonal flat round head screw (13).
6. The carbon fiber blade forming die of claim 1, wherein: the left slider (15) and the right slider (16) are fixed on the upper die and the lower die through bolts.
7. The carbon fiber blade forming die of claim 1, wherein: the material of the die is 45# or 35CrMn steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022556506.4U CN215750264U (en) | 2020-11-06 | 2020-11-06 | Carbon fiber blade forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022556506.4U CN215750264U (en) | 2020-11-06 | 2020-11-06 | Carbon fiber blade forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215750264U true CN215750264U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022556506.4U Active CN215750264U (en) | 2020-11-06 | 2020-11-06 | Carbon fiber blade forming die |
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| CN (1) | CN215750264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112405954A (en) * | 2020-11-06 | 2021-02-26 | 惠阳航空螺旋桨有限责任公司 | Carbon fiber blade forming die and die opening method |
-
2020
- 2020-11-06 CN CN202022556506.4U patent/CN215750264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112405954A (en) * | 2020-11-06 | 2021-02-26 | 惠阳航空螺旋桨有限责任公司 | Carbon fiber blade forming die and die opening method |
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