CN111537305B - Mold for molding bilateral pull-off test piece - Google Patents
Mold for molding bilateral pull-off test piece Download PDFInfo
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- CN111537305B CN111537305B CN202010414084.9A CN202010414084A CN111537305B CN 111537305 B CN111537305 B CN 111537305B CN 202010414084 A CN202010414084 A CN 202010414084A CN 111537305 B CN111537305 B CN 111537305B
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- test piece
- bottom plate
- plate
- vertical plate
- movable bottom
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
Abstract
The invention discloses a die for forming a bilateral pull-off test piece, which comprises an upper vertical plate, a lower vertical plate, a bottom plate, connecting plates and a movable bottom plate, wherein the working sides of the upper vertical plate, the lower vertical plate, the bottom plate and the movable bottom plate are respectively of a U-shaped structure; and two ends of the working side of the movable bottom plate are detachably connected with the connecting plate respectively. The invention aims to clamp the prefabricated product of the test piece so as to ensure that the pressure and the appearance structure of the test piece are consistent during double-side T-shaped adhesive joint forming of the test piece, ensure the effectiveness of the test piece and provide good test conditions for a mechanical test. The interior of the test piece is hollow, so that the pressure and the temperature applied to the upper surface and the lower surface of the test piece in the forming process are in the same state, and the consistency of the internal quality after the glue joint is ensured.
Description
Technical Field
The invention belongs to the technical field of forming dies, and particularly relates to a die for forming a bilateral pull-off test piece.
Background
Due to the advanced and excellent characteristics of stealth, high specific strength, high specific stiffness and the like of the composite material, the composite material is more and more widely applied to military and civil aircraft. The application range in the airplane structure is wider and wider, the composite material is not only widely used in the secondary load-bearing structural members of the airplane, but also has the weight ratio of up to 50 percent in the main load-bearing structural members (Boeing 787).
In order to ensure that the mechanical property index of the product after molding fully meets the design requirement, test pieces need to be tested on certain special indexes in the process of trial production of the product. The test piece state should be consistent with the product, so the test piece needs to be manufactured. The invention aims to realize the production of a test piece for obtaining pull-off, shearing, lateral bending strength and failure modes of a T-shaped joint of domestic fibers and other composite materials in high and low temperature environments.
Disclosure of Invention
The invention aims to provide a die for forming a bilateral pull-off test piece, and aims to clamp a preform of the test piece so as to ensure that the pressure and the appearance structure of the test piece are consistent during bilateral T-shaped adhesive bonding forming of the test piece, ensure the effectiveness of the test piece and provide good test conditions for a mechanical test.
The invention is mainly realized by the following technical scheme:
a mold for forming a bilateral pull-off test piece comprises an upper vertical plate, a lower vertical plate, a bottom plate, connecting plates and a movable bottom plate, wherein the working sides of the upper vertical plate, the lower vertical plate, the bottom plate and the movable bottom plate are respectively of a U-shaped structure; and two ends of the working side of the movable bottom plate are detachably connected with the connecting plate respectively.
The invention clamps the prefabricated product of the test piece after assembly, and ensures that the T-shaped glue at two sides of the test piece is formed consistently and has consistent appearance structure. The interior of the test piece is hollow, so that the pressure and the temperature applied to the upper surface and the lower surface of the test piece in the forming process are in the same state, and the consistency of the internal quality after the glue joint is ensured.
The invention mainly comprises the following steps in the using process:
(1) welding the connecting plate with a bottom plate, and forming a notch in the bottom plate to meet the requirement of the overall dimension of the test piece; the inner side of the connecting plate should meet the corresponding dimensional requirements.
(2) The movable bottom plate is combined through the bolt connecting piece, the movable bottom plate is assembled and fixed on the connecting plate through the pin, and the lower vertical plate is clamped by the inner side face of the connecting plate during assembly.
(3) At the moment, the prefabricated part of the test piece is clamped in the cavity between the movable bottom plate and the bottom plate, then the structure is turned over, and the upper vertical plate is placed on the bottom plate.
In order to better implement the invention, two ends of the working side of the movable bottom plate are respectively connected with the connecting plate through bolt connecting pieces.
In order to better implement the invention, pin holes are further formed in the connecting plate, and two ends of the movable bottom plate are respectively connected with the pin holes of the connecting plate through connecting pins.
In order to better implement the present invention, further, both ends of the bottom plate are connected to one end of the connection plate by welding.
In order to better implement the invention, further, the axes of the upper vertical plate and the lower vertical plate and the axes of the bottom plate and the movable bottom plate are perpendicular to each other.
The invention has the beneficial effects that:
(1) the invention aims to clamp the prefabricated product of the test piece so as to ensure that the pressure and the appearance structure of the test piece are consistent during double-side T-shaped adhesive joint forming of the test piece, ensure the effectiveness of the test piece and provide good test conditions for a mechanical test.
(2) The invention clamps the prefabricated product of the test piece after assembly, and ensures that the T-shaped glue at two sides of the test piece is formed consistently and has consistent appearance structure. The interior of the test piece is hollow, so that the pressure and the temperature applied to the upper surface and the lower surface of the test piece in the forming process are in the same state, and the consistency of the internal quality after the glue joint is ensured.
Drawings
FIG. 1 is a schematic view of a connecting structure of an upper vertical plate and a bottom plate;
FIG. 2 is a schematic view of a connection structure of a bottom plate and a connecting plate;
FIG. 3 is a schematic view of a connection structure of a lower vertical plate and a connection plate;
FIG. 4 is a schematic structural view of the present invention;
FIG. 5 is a diagram showing the operation of the clamping test piece preform of the present invention.
Wherein: 1-bottom plate, 2-movable bottom plate, 3-connecting plate, 5-connecting pin, 6-bolt connecting piece, 7-lower vertical plate and 8-upper vertical plate.
Detailed Description
Example 1:
a mold for molding a bilateral pull-off test piece comprises an upper vertical plate 8, a lower vertical plate 7, a bottom plate 1, connecting plates 3 and a movable bottom plate 2, wherein the working sides of the upper vertical plate 8, the lower vertical plate 7, the bottom plate 1 and the movable bottom plate 2 are respectively of a U-shaped structure, the connecting plates 3 are respectively arranged at two ends of the working side of the bottom plate 1, the lower vertical plate 7 is clamped between adjacent connecting plates 3, and the upper vertical plate 8 is correspondingly arranged on the bottom plate 1; and two ends of the working side of the movable bottom plate 2 are detachably connected with the connecting plate 3 respectively.
The invention aims to clamp the prefabricated product of the test piece so as to ensure that the pressure and the appearance structure of the test piece are consistent during double-side T-shaped adhesive joint forming of the test piece, ensure the effectiveness of the test piece and provide good test conditions for a mechanical test. The invention clamps the prefabricated product of the test piece after assembly, and ensures that the T-shaped glue at two sides of the test piece is formed consistently and has consistent appearance structure. As shown in FIG. 5, the interior of the invention is hollow, so that the pressure and temperature applied to the upper and lower surfaces of the test piece in the molding process are in the same state, thereby ensuring the consistent internal quality after the bonding.
Example 2:
the embodiment is optimized on the basis of embodiment 1, and the axes of the upper vertical plate 8 and the lower vertical plate 7 are perpendicular to the axes of the bottom plate 1 and the movable bottom plate 2. And two ends of the working side of the movable bottom plate 2 are respectively connected with the connecting plate 3 through bolt connecting pieces 6. Or the connecting plate 3 is provided with pin holes, and two ends of the movable bottom plate 2 are respectively connected with the pin holes of the connecting plate 3 through connecting pins 5.
The invention aims to clamp the prefabricated product of the test piece so as to ensure that the pressure and the appearance structure of the test piece are consistent during double-side T-shaped adhesive joint forming of the test piece, ensure the effectiveness of the test piece and provide good test conditions for a mechanical test.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
Example 3:
a die for forming a bilateral pull-off test piece comprises an upper vertical plate 8, a lower vertical plate 7, a bottom plate 1, a connecting plate 3, a movable bottom plate 2, a connecting pin 5 and a bolt connecting piece 6. As shown in fig. 2-4, the present invention mainly comprises the following steps:
(1) as shown in fig. 2, the connecting plate 3 is welded with the bottom plate 1, and the bottom plate 1 is internally provided with a notch to meet the requirement of the overall dimension of the test piece; the inner side of the connecting plate 3 should meet the corresponding dimensional requirements.
(2) As shown in fig. 3, the movable bottom plate 2 is assembled by a bolt connector 6 and fixed on the connecting plate 3 by pin assembly, and the lower vertical plate 7 is clamped by the inner side surface of the connecting plate 3 during assembly.
(3) As shown in fig. 4, the preform of the test piece is clamped in the cavity between the movable base plate 2 and the base plate 1, and then the structure is turned over to place the upper standing plate 8 on the base plate 1.
The invention aims to clamp the prefabricated product of the test piece so as to ensure that the pressure and the appearance structure of the test piece are consistent during double-side T-shaped adhesive joint forming of the test piece, ensure the effectiveness of the test piece and provide good test conditions for a mechanical test. The invention clamps the prefabricated product of the test piece after assembly, and ensures that the T-shaped glue at two sides of the test piece is formed consistently and has consistent appearance structure. As shown in FIG. 5, the interior of the invention is hollow, so that the pressure and temperature applied to the upper and lower surfaces of the test piece in the molding process are in the same state, thereby ensuring the consistent internal quality after the bonding.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (4)
1. The die for forming the bilateral pull-off test piece is characterized by comprising an upper vertical plate (8), a lower vertical plate (7), a bottom plate (1), connecting plates (3) and a movable bottom plate (2), wherein the working sides of the upper vertical plate (8), the lower vertical plate (7), the bottom plate (1) and the movable bottom plate (2) are respectively of a U-shaped structure, the connecting plates (3) are respectively arranged at two ends of the working side of the bottom plate (1), the lower vertical plate (7) is clamped between the adjacent connecting plates (3), and the upper vertical plate (8) is correspondingly arranged on the bottom plate (1); two ends of the working side of the movable bottom plate (2) are respectively detachably connected with the connecting plate (3); the axes of the upper vertical plate (8) and the lower vertical plate (7) are vertical to the axes of the bottom plate (1) and the movable bottom plate (2).
2. The die for molding the double-sided pull-off test piece according to claim 1, wherein two ends of the working side of the movable bottom plate (2) are respectively connected with the connecting plate (3) through bolt connecting pieces (6).
3. The die for molding the double-sided pull-off test piece according to claim 2, wherein the connecting plate (3) is provided with pin holes, and two ends of the movable bottom plate (2) are respectively connected with the pin holes of the connecting plate (3) through connecting pins (5).
4. The die for double-sided pull-off test piece molding according to claim 1, wherein both ends of the bottom plate (1) are connected with one end of the connecting plate (3) by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414084.9A CN111537305B (en) | 2020-05-15 | 2020-05-15 | Mold for molding bilateral pull-off test piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010414084.9A CN111537305B (en) | 2020-05-15 | 2020-05-15 | Mold for molding bilateral pull-off test piece |
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| Publication Number | Publication Date |
|---|---|
| CN111537305A CN111537305A (en) | 2020-08-14 |
| CN111537305B true CN111537305B (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010414084.9A Active CN111537305B (en) | 2020-05-15 | 2020-05-15 | Mold for molding bilateral pull-off test piece |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62238440A (en) * | 1986-04-10 | 1987-10-19 | Natl Aerospace Lab | Compression test jig |
| CN107290217A (en) * | 2017-06-30 | 2017-10-24 | 吉林大学 | Test overlay cladding and the lifting test method and test specimen of base metals bond strength |
| CN107599254A (en) * | 2017-08-23 | 2018-01-19 | 成都飞机工业（集团）有限责任公司 | A kind of posting and more muscle covering co-curing moulds of more die combinations |
| CN207610903U (en) * | 2017-12-15 | 2018-07-13 | 中国航空工业集团公司成都飞机设计研究所 | A kind of metal T-type welding point tension test part |
| CN110441134A (en) * | 2019-08-15 | 2019-11-12 | 攀钢集团攀枝花钢铁研究院有限公司 | The clamping tooling and detection method of cross spot welding workpiece tensile property detection |
-
2020
- 2020-05-15 CN CN202010414084.9A patent/CN111537305B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62238440A (en) * | 1986-04-10 | 1987-10-19 | Natl Aerospace Lab | Compression test jig |
| CN107290217A (en) * | 2017-06-30 | 2017-10-24 | 吉林大学 | Test overlay cladding and the lifting test method and test specimen of base metals bond strength |
| CN107599254A (en) * | 2017-08-23 | 2018-01-19 | 成都飞机工业（集团）有限责任公司 | A kind of posting and more muscle covering co-curing moulds of more die combinations |
| CN207610903U (en) * | 2017-12-15 | 2018-07-13 | 中国航空工业集团公司成都飞机设计研究所 | A kind of metal T-type welding point tension test part |
| CN110441134A (en) * | 2019-08-15 | 2019-11-12 | 攀钢集团攀枝花钢铁研究院有限公司 | The clamping tooling and detection method of cross spot welding workpiece tensile property detection |
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| Publication number | Publication date |
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| CN111537305A (en) | 2020-08-14 |
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