CN114076651B - Composite temporary fastener verification device and application method thereof - Google Patents
Composite temporary fastener verification device and application method thereof Download PDFInfo
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- CN114076651B CN114076651B CN202010842265.1A CN202010842265A CN114076651B CN 114076651 B CN114076651 B CN 114076651B CN 202010842265 A CN202010842265 A CN 202010842265A CN 114076651 B CN114076651 B CN 114076651B
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- 239000002131 composite material Substances 0.000 title claims abstract description 154
- 238000012795 verification Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title abstract description 12
- 238000013507 mapping Methods 0.000 claims description 11
- 238000011900 installation process Methods 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 11
- 238000012360 testing method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a composite material temporary fastener verification device and a use method thereof, and belongs to the technical field of mechanical assembly. The composite temporary fastener verification device comprises a bottom plate; an air gun capable of sliding on the base plate; a torque sensor capable of sliding on the base plate, the torque sensor being connected to an output shaft of the air gun, the torque sensor being configured to detect a torque of the output shaft of the air gun; the air gun is used for driving the installer and the composite temporary fastener to slide on the bottom plate so as to install the composite temporary fastener into the composite plate; and the pressure sensor is used for detecting the clamping force generated when the composite temporary fastener is mounted on the composite plate, and the composite temporary fastener, the mounting device, the torque sensor and the pressure sensor are coaxial with the air gun. The advantages are that: the accurate installation of the temporary fastener of the composite material can be realized.
Description
Technical Field
The invention relates to the technical field of mechanical assembly, in particular to a composite temporary fastener verification device and a use method thereof.
Background
During assembly of the machine product, one or more rows of mounting holes may be drilled in the composite thin-walled structure to facilitate final assembly, prior to performing final assembly of the composite thin-walled structure. In order to eliminate gaps among parts, avoid more burrs from affecting the machining quality of the mounting holes, and avoid movement among the parts during machining to affect the alignment of the mounting holes during final assembly, fasteners need to be installed in pre-machined positioning holes. However, in the assembly site, due to the limitation of the assembly space, only one-sided operation can be performed on the thin-walled composite structure, and at this time, the temporary composite fastener needs to be installed in the installation hole on the thin-walled composite structure by using a pneumatic tool.
Different torque may be generated due to different input air pressures of the pneumatic tool to create different clamping forces for the composite temporary fastener. However, at present, in the installation process of the temporary composite material fastener, the mapping relation between the installation air pressure and torque of the pneumatic tool and the clamping force of the temporary composite material fastener is not clear, the installation can be carried out only by the sense of an installer, and the excessive or insufficient clamping force is easy to occur; excessive clamping force can damage the hole wall and the hole edge of the composite material part, and hidden danger is brought to the bearing performance and the fatigue life of the machine; while too little clamping force can easily lead to play between thin-walled parts of composite material, thereby affecting final assembly.
In view of the above, there is a need for a composite temporary fastener verification device and method of use thereof that addresses the above issues.
Disclosure of Invention
The invention aims to provide a verification device for a temporary composite material fastener, which can realize accurate installation of the temporary composite material fastener.
To achieve the purpose, the invention adopts the following technical scheme:
a composite temporary fastener verification apparatus for verifying a mapping between installation process parameters of an air gun and a clamping force of a composite temporary fastener, comprising:
A bottom plate;
An air gun slidable on the base plate;
A torque sensor capable of sliding on the base plate, the torque sensor being connected to an output shaft of the air gun, the torque sensor being configured to detect a torque of the output shaft of the air gun;
The installer can slide on the bottom plate, one end of the installer is connected with the torque sensor, the other end of the installer is provided with a composite material temporary fastener, and the air gun is used for driving the installer and the composite material temporary fastener to slide on the bottom plate so as to install the composite material temporary fastener into a composite material plate;
a pressure sensor for detecting a clamping force generated when the composite temporary fastener is mounted to the composite plate, and the composite temporary fastener, the mounter, the torque sensor, the pressure sensor being coaxial with the air gun.
Preferably, the composite temporary fastener verification device further comprises:
The positioning frame is provided with a U-shaped frame for placing and fixing the composite material plate, and the thickness of the U-shaped frame is adjustable;
the side plates are respectively arranged on two sides of the locating frame and are abutted against two ends of the composite material plate.
Preferably, the composite temporary fastener verification device further comprises:
the first positioning piece is arranged on the bottom plate in a sliding manner and is used for positioning the air gun;
And the first clamping piece is arranged at the top end of the first positioning piece so as to clamp the air gun.
Preferably, the composite temporary fastener verification device further comprises:
a first support member slidably disposed on the base plate;
the second locating piece is fixedly arranged at the top end of the first supporting piece, and the torque sensor is fixedly arranged at the top end of the second locating piece.
Preferably, the composite temporary fastener verification device further comprises:
A third positioning member slidably disposed on the base plate, the third positioning member being for positioning the mounter;
and the second clamping piece is arranged at the top end of the third positioning piece so as to clamp the installer.
Preferably, the composite temporary fastener verification device further comprises:
a second support slidably disposed on the base plate, the second support for supporting the pressure sensor;
and the fourth positioning piece is arranged between the pressure sensor and the composite temporary fastener and is used for positioning the pressure sensor.
Preferably, the bottom plate is further provided with a sliding rail, a plurality of sliding blocks are slidably arranged on the sliding rail, the sliding blocks can slide along the sliding rail, and the sliding blocks are respectively arranged at the bottom ends of the first positioning piece, the first supporting piece, the third positioning piece and the second supporting piece.
Preferably, a baffle is arranged at one end of the sliding rail far away from the composite material plate, and the baffle is used for resisting the sliding block.
Preferably, a hexagonal clamping shaft is arranged between the installer and the torque sensor, and the hexagonal clamping shaft is in transition fit with a hexagonal prism on the inner side of the installer.
The invention further aims to provide a using method of the composite material temporary fastener verifying device, which is simple to operate and can realize accurate installation of the composite material temporary fastener.
To achieve the purpose, the invention adopts the following technical scheme:
A method of using a composite temporary fastener verification device as described above, comprising the steps of:
Selecting a matched air gun according to the composite material temporary fastening piece, clamping the air gun, and loading the composite material temporary fastening piece into the installer;
pushing the air gun to connect the air gun with the torque sensor, the torque sensor with the installer, the installer with the composite temporary fastener, the composite temporary fastener with the composite plate;
buckling the air gun to install the composite temporary fastener into the composite plate;
Recording display parameters of the torque sensor and the pressure sensor, and calculating to obtain a mapping relation between the air pressure and the torque of the air gun and the clamping force generated by the temporary composite material fastener.
The beneficial effects of the invention are as follows:
Installing the composite temporary fastener into the composite panel by providing an air gun, a torque sensor for detecting torque of an output shaft of the air gun, an installer for installing the composite temporary fastener, and a pressure sensor for detecting a clamping force generated when the composite temporary fastener is installed to the composite panel, so that the air gun drives the installer and the composite temporary fastener to slide on the bottom plate; meanwhile, display parameters of the torque sensor and the pressure sensor are recorded, and a mapping relation between the air pressure and the torque of the air gun and the clamping force generated by the temporary composite material fastening piece is calculated, so that the accurate installation of the temporary composite material fastening piece can be realized, and the problem that the final assembly of the composite material plate is affected due to the fact that the clamping force is too large or too small is avoided; the verification operation is simple, has important guiding significance on the actual production field, and is beneficial to realizing the accurate pre-connection of the thin-wall structure of the composite material; and the temporary composite fastener, the installer, the torque sensor, the pressure sensor and the air gun are coaxial, so that the accuracy of test and verification can be ensured.
Drawings
FIG. 1 is a schematic view of a composite temporary fastener verification device according to an embodiment of the present invention;
FIG. 2 is an exploded schematic view of a composite temporary fastener verification device provided in accordance with a first embodiment of the invention;
Fig. 3 is a flow chart of a method for using the composite temporary fastener verification device according to the second embodiment of the invention.
Reference numerals illustrate:
1-a bottom plate; 2-sliding rails; 3-baffle plates; 4-a slider; 5-a first positioning member; 6-an air gun; 7-a first clamping member; 8-socket head cap screws; 9-a first coupling; 10-a first support; 11-a second positioning member; 12-a torque sensor; 13-a third positioning member; 14-a second clamping member; 15-an installer; 16-a composite temporary fastener; 17-a second support; 18-fourth positioning piece; 19-a pressure sensor; 20-a composite plate; 21-long plum blossom screws; 22-positioning frames; 23-side plates; 24-vertical plates; 25-hexagonal clamping shaft.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise. Like reference numerals refer to like elements throughout the specification.
In order to make the technical problems solved, the technical scheme adopted and the technical effects achieved by the invention more clear, the technical scheme of the invention is further described below by a specific embodiment in combination with the attached drawings.
Example 1
In this embodiment, a device for verifying a temporary composite material fastener is provided, which can be used to accurately verify the mapping relationship between the installation process parameters of the air gun 6 and the clamping force generated by the temporary composite material fastener 16, so as to achieve accurate installation of the temporary composite material fastener 16.
Specifically, as shown in fig. 1 and 2, the composite temporary fastener verification device includes a base plate 1, an air gun 6 capable of sliding on the base plate 1, a torque sensor 12, an installer 15, and a pressure sensor 19. The torque sensor 12 can slide on the base plate 1, the torque sensor 12 is coaxially connected with an output shaft of the air gun 6 through the first coupling 9, and the torque sensor 12 is used for detecting the torque of the output shaft of the air gun 6; the installer 15 can slide on the bottom plate 1, one end of the installer 15 is connected with the torque sensor 12 through a hexagonal clamping shaft 25, the hexagonal clamping shaft 25 is connected with an output shaft of the torque sensor 12 through a second coupling, and the hexagonal clamping shaft 25 is in transition fit with a hexagonal prism in the installer 15, so that the installer 15 is driven by the air gun 6, and the installation and the disassembly of the composite material temporary fastener 16 are realized; the other end of the installer 15 is provided with a composite material temporary fastener 16, and the air gun 6 is used for driving the installer 15 and the composite material temporary fastener 16 to slide on the bottom plate 1 so as to install the composite material temporary fastener 16 into the composite material plate 20; the pressure sensor 19 is used to detect the clamping force generated when the composite temporary fastener 16 is mounted to the composite plate 20, and the composite temporary fastener 16, the installer 15, the torque sensor 12, and the pressure sensor 19 are coaxial with the air gun 6.
Installing the composite temporary fastener 16 into the composite panel 20 by providing the air gun 6, a torque sensor 12 for detecting the torque of an output shaft of the air gun 6, an installer 15 for installing the composite temporary fastener 16, and a pressure sensor 19 for detecting the clamping force generated when the composite temporary fastener 16 is installed to the composite panel 20, so that the air gun 6 drives the installer 15 and the composite temporary fastener 16 to slide on the base panel 1; simultaneously, display parameters of the torque sensor 12 and the pressure sensor 19 are recorded, and a mapping relation between the air pressure and the torque of the air gun 6 and the clamping force generated by the composite material temporary fastening piece 16 is calculated, so that the accurate installation of the composite material temporary fastening piece 16 can be realized, the problem that the final assembly of the composite material plate 20 is affected due to overlarge or overlarge clamping force is avoided, the verification operation is simple, the important guiding significance is realized on the actual production site, and the accurate pre-connection of the composite material thin-wall structure is facilitated; and the temporary fastener 16, the installer 15, the torque sensor 12 and the pressure sensor 19 of the composite material are coaxial with the air gun 6, so that the accuracy of test verification can be ensured.
Further, as shown in fig. 2, the composite temporary fastener verification device further includes a positioning frame 22 and a side plate 23. The positioning frame 22 is provided with a U-shaped frame for placing and fixing the composite material plates 20, and the thickness of the U-shaped frame is adjustable, so that the composite material plates 20 with different thicknesses can be placed in the U-shaped frame, and further clamping force verification tests can be carried out on the composite material plates 20 with different thicknesses; the side plates 23 are respectively disposed at two sides of the positioning frame 22 and abut against two ends of the composite material plate 20, so as to prevent the composite material plate 20 from sliding off the positioning frame 22, thereby affecting the whole installation process. Wherein, a plurality of long plum blossom screws 21 are arranged on the vertical plate 24 of the U-shaped frame, and the thickness of the U-shaped frame is adjusted by adjusting the length of the end part of the long plum blossom screws 21 entering the vertical plate 24. In this embodiment, the number of the long plum blossom screws 21 is four, and two long plum blossom screws 21 are provided on each vertical plate 24 to fix the composite material plate 20 on the U-shaped frame.
Specifically, as shown in fig. 2, the composite temporary fastener verification device further includes a first positioning member 5 and a first clamping member 7. The first positioning piece 5 is arranged at the top end of the bottom plate 1 in a sliding manner, and the first positioning piece 5 is used for positioning and placing the air gun 6; the first clamping member 7 is provided at the top end of the first positioning member 5, the air gun 6 is placed between the first positioning member 5 and the first clamping member 7, and the first positioning member 5 is fixed to the first clamping member 7 using the hexagon socket head cap screw 8 to clamp the air gun 6.
Further, as shown in fig. 2, the composite temporary fastener verification device further includes a first supporting member 10 and a second positioning member 11. The first support 10 is slidably disposed on the base plate 1, and the first support 10 is for supporting the torque sensor 12; the second positioning piece 11 is fixedly arranged at the top end of the first supporting piece 10, the torque sensor 12 is fixedly arranged at the top end of the second positioning piece 11, and the second positioning piece 11 is used for positioning the torque sensor 12.
Specifically, as shown in fig. 2, the composite temporary fastener verification device further includes a third positioning member 13 and a second clamping member 14. Wherein, the third positioning piece 13 is arranged at the top end of the bottom plate 1 in a sliding way, and the third positioning piece 13 is used for positioning and placing the installer 15; the second clamping member 14 is provided at the top end of the third positioning member 13, and the mounter 15 is placed between the third positioning member 13 and the second clamping member 14, and the third positioning member 13 and the second clamping member 14 are fixed with the socket head cap screws 8 to clamp the mounter 15.
Further, as shown in fig. 2, the composite temporary fastener verification device further includes a second support 17 and a fourth positioning member 18. The second supporting member 17 is slidably arranged at the top end of the base plate 1, and the second supporting member 17 is used for supporting the pressure sensor 19; a fourth positioning member 18 is provided between the pressure sensor 19 and the composite temporary fastener 16, the fourth positioning member 18 being for positioning the pressure sensor 19. Wherein, the bottom plate 1, the first positioning piece 5, the first supporting piece 10, the first clamping piece 7, the second positioning piece 11, the third positioning piece 13, the second clamping piece 14, the fourth positioning piece 18, the second supporting piece 17, the positioning frame 22 and the side plate 23 are all made of aluminum alloy materials, and sand blasting is performed on the outer side surface so as to improve the mechanical property of the outer side surface and the fatigue resistance of the outer side surface. The composite material plate 20 and the fourth positioning member 18 can be pulled out to explore the relation of the time-varying clamping force generated by the composite material temporary fastening member 16 or explore other mapping relations, so that the composite material temporary fastening member verifying device can be fully utilized, and the practicability is better.
Specifically, as shown in fig. 2, a sliding rail 2 is further arranged on the bottom plate 1, a plurality of sliding blocks 4 are slidably arranged on the sliding rail 2, and the sliding blocks 4 can slide along the sliding rail 2; in this embodiment, the number of the sliding blocks 4 is four, and the four sliding blocks 4 are respectively arranged at the bottom ends of the first positioning member 5, the first supporting member 10, the third positioning member 13 and the second supporting member 17 for advancing and retreating the air gun 6 so as to complete the jacking of the composite temporary fastening member 16 and the disassembly of the composite temporary fastening member 16. Wherein, keep away from the one end of combined material board 20 on slide rail 2 and be provided with baffle 3, baffle 3 is used for keeping out slider 4 to avoid setting up the slider 4 that breaks away from slide rail 2 in the bottom of first setting element 5, in order to guarantee that combined material temporary fastening piece 16, installer 15, torque sensor 12, pressure sensor 19 and air gun 6 are coaxial all the time in the whole verification process, thereby guaranteed the accuracy of test verification.
Example two
In this embodiment, a method for using the composite temporary fastener verification device according to embodiment one is provided, including the following steps: as shown in fig. 3, first, according to the composite material temporary fastener 16 to be tested, a model of the air gun 6 is selected to be matched with the model, and the air gun 6 is loaded between the first positioning member 5 and the first clamping member 7 to clamp the air gun 6, and simultaneously the composite material temporary fastener 16 is loaded into the installer 15; the air gun 6 is pushed again to connect the air gun 6 with the torque sensor 12, the torque sensor 12 with the installer 15, the installer 15 with the composite temporary fastener 16, and the composite temporary fastener 16 with the composite plate 20.
Then, after the composite temporary fastener 16 is tightened on the composite panel 20, the air gun 6 trigger is pulled to push the composite temporary fastener 16 to move in a direction approaching the composite panel 20 to install the composite temporary fastener 16 into the composite panel 20; by having the air gun 6 at different input pressures, different rotational speeds, torques can be output for the installation of the composite temporary fastener 16, thereby causing the composite temporary fastener 16 to generate different clamping forces, while recording different display parameters of the torque sensor 12 and the pressure sensor 19.
Finally, the air gun 6 is shifted to control the forward and backward shifting piece and the trigger of the air gun 6 is pulled to detach the temporary composite material fastener 16, and the mapping relation between the air pressure and the torque of the air gun 6 and the clamping force generated by the temporary composite material fastener 16 is accurately calculated according to the recorded different display parameters of the torque sensor 12 and the pressure sensor 19.
The foregoing is merely exemplary of the present invention, and those skilled in the art should not be considered as limiting the invention, since modifications may be made in the specific embodiments and application scope of the invention in light of the teachings of the present invention.
Claims (8)
1. A composite temporary fastener verification apparatus for verifying a mapping relationship between an installation process parameter of an air gun (6) and a clamping force of a composite temporary fastener (16), comprising:
A bottom plate (1);
an air gun (6) which is slidable on the base plate (1);
a torque sensor (12) capable of sliding on the base plate (1), the torque sensor (12) being connected to an output shaft of the air gun (6), the torque sensor (12) being configured to detect a torque of the output shaft of the air gun (6);
A mounting device (15) capable of sliding on the base plate (1), one end of the mounting device (15) is connected with the torque sensor (12), the other end is provided with a composite material temporary fastening piece (16), and the air gun (6) is used for driving the mounting device (15) and the composite material temporary fastening piece (16) to slide on the base plate (1) so as to mount the composite material temporary fastening piece (16) into a composite material plate (20);
-a pressure sensor (19) for detecting a clamping force generated when the composite temporary fastener (16) is mounted to the composite plate (20), and the composite temporary fastener (16), the mounting device (15), the torque sensor (12), the pressure sensor (19) being coaxial with the air gun (6);
The positioning frame (22) is provided with a U-shaped frame for placing and fixing the composite material plate (20), and the thickness of the U-shaped frame is adjustable;
Side plates (23) which are respectively arranged at two sides of the positioning frame (22) and are abutted against two ends of the composite material plate (20);
The mapping relation is obtained by the following steps:
-selecting a matching air gun (6) according to the composite temporary fastener (16), and clamping the air gun (6), loading the composite temporary fastener (16) into the installer (15);
Pushing the air gun (6) so that the air gun (6) is connected with the torque sensor (12), the torque sensor (12) is connected with the installer (15), the installer (15) is connected with the composite temporary fastener (16), and the composite temporary fastener (16) is connected with the composite plate (20);
-snapping the air gun (6), installing the composite temporary fastener (16) into the composite panel (20);
recording display parameters of the torque sensor (12) and the pressure sensor (19), and calculating the mapping relation between the air pressure and the torque of the air gun (6) and the clamping force generated by the composite material temporary fastening piece (16).
2. The composite temporary fastener verification device of claim 1, further comprising:
A first positioning member (5) slidably provided on the base plate (1), the first positioning member (5) being for positioning the air gun (6);
And a first clamping member (7) provided at the tip end of the first positioning member (5) to clamp the air gun (6).
3. The composite temporary fastener verification device of claim 2, further comprising:
a first support (10) slidingly disposed on the base plate (1);
The second positioning piece (11) is fixedly arranged at the top end of the first supporting piece (10), and the torque sensor (12) is fixedly arranged at the top end of the second positioning piece (11).
4. The composite temporary fastener verification device of claim 3, further comprising:
a third positioning member (13) slidably provided on the base plate (1), the third positioning member (13) being for positioning the mounter (15);
and a second clamping member (14) provided at the tip end of the third positioning member (13) to clamp the mounter (15).
5. The composite temporary fastener verification device of claim 4, further comprising:
A second support (17) slidably disposed on the base plate (1), the second support (17) being for supporting the pressure sensor (19);
-a fourth positioning member (18) arranged between the pressure sensor (19) and the composite temporary fastener (16), the fourth positioning member (18) being adapted to position the pressure sensor (19).
6. The composite temporary fastener verification device according to claim 5, wherein the base plate (1) is further provided with a sliding rail (2), a plurality of sliding blocks (4) are slidably arranged on the sliding rail (2), the sliding blocks (4) can slide along the sliding rail (2), and the sliding blocks (4) are respectively arranged at the bottom ends of the first positioning piece (5), the first supporting piece (10), the third positioning piece (13) and the second supporting piece (17).
7. A composite temporary fastener verification device according to claim 6, characterized in that a baffle (3) is provided on the slide rail (2) at an end remote from the composite panel (20), the baffle (3) being adapted to bear against the slider (4).
8. The composite temporary fastener verification device according to claim 1, wherein a hexagonal clamping shaft (25) is arranged between the installer (15) and the torque sensor (12), and the hexagonal clamping shaft (25) is in transition fit with a hexagonal prism on the inner side of the installer (15).
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| CN202010842265.1A CN114076651B (en) | 2020-08-20 | 2020-08-20 | Composite temporary fastener verification device and application method thereof |
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| CN202010842265.1A CN114076651B (en) | 2020-08-20 | 2020-08-20 | Composite temporary fastener verification device and application method thereof |
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| CN115674097B (en) * | 2022-10-24 | 2023-09-01 | 韶关学院 | Temporary fastener based on rigid expansion sleeve |
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