Composite temporary fastener verification device and use method thereof
Technical Field
The invention relates to the technical field of mechanical assembly, in particular to a verification device for a temporary fastener made of a composite material and a using method of the verification device.
Background
In the assembly process of mechanical products, before final assembly of the composite material thin-wall structure is performed, one or more rows of mounting holes need to be drilled in the composite material thin-wall structure so as to facilitate the final assembly. Wherein, in order to eliminate the clearance between the part, avoid appearing more burr and influence the processingquality of mounting hole to and avoid appearing the alignment of mounting hole when processing the drunkenness between the part in order to influence final assembly, need pack into the fastener in the locating hole that is processed in advance. However, in the assembly field, due to the limitation of the assembly space, only one side of the composite material thin-wall structure can be operated, and at the moment, a composite material temporary fastening piece is adopted and is installed in an installation hole in the composite material thin-wall structure by a pneumatic tool.
Different input air pressures due to the pneumatic tool will produce different torques to produce different composite temporary fastener clamping forces. However, at present, in the installation process of the composite material temporary fastening piece, the mapping relation between the installation air pressure and the torque of the pneumatic tool and the clamping force of the composite material temporary fastening piece is not clear, the installation can be carried out only by the feeling of an installer, and the clamping force is easy to be too large or too small; the excessive clamping force can damage the hole wall and the hole edge of the composite material part, and hidden troubles are brought to the bearing performance and the fatigue life of the machine; and too little clamping force tends to cause play between the composite thin-walled parts, thereby affecting the final assembly.
In view of the above, there is a need for a composite temporary fastener verification device and method of use that addresses the above issues.
Disclosure of Invention
One object of the present invention is to provide a composite temporary fastening member verification device that enables accurate installation of composite temporary fastening members.
In order to achieve the purpose, the invention adopts the following technical scheme:
a composite temporary fastener verification apparatus for verifying a mapping relationship between installation process parameters of an air gun and a clamping force of a composite temporary fastener, comprising:
a base plate;
an air gun slidable on the base plate;
a torque sensor that is slidable 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 fastening piece, and the air gun is used for driving the installer and the composite material temporary fastening piece to slide on the bottom plate so as to install the composite material temporary fastening piece into a composite material plate;
a pressure sensor for detecting a clamping force generated when the composite temporary fastener is installed to the composite panel, and the composite temporary fastener, the installer, the torque sensor, the pressure sensor and the air gun are coaxial.
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;
and the side plates are respectively arranged on two sides of the positioning 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 mode and used for positioning the air gun;
a first clamping member disposed at a top end of the first positioning member to clamp the air gun.
Preferably, the composite temporary fastener verification device further comprises:
the first supporting piece is arranged on the bottom plate in a sliding mode;
and the second positioning 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 positioning piece.
Preferably, the composite temporary fastener verification device further comprises:
the third positioning piece is arranged on the bottom plate in a sliding mode and used 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 mounter.
Preferably, the composite temporary fastener verification device further comprises:
the second support piece is arranged on the bottom plate in a sliding mode and is used for supporting the pressure sensor;
and the fourth positioning piece is arranged between the pressure sensor and the composite material temporary fastening piece, and is used for positioning the pressure sensor.
Preferably, the bottom plate is further provided with a slide rail, the slide rail is provided with a plurality of slide blocks in a sliding manner, the slide blocks can slide along the slide rail, and the slide 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 slide rail, which is far away from the composite material plate, and the baffle is used for resisting the slide 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.
Another object of the present invention is to provide a method for using a composite temporary fastening member verification device, which is simple to operate and can achieve precise installation of the composite temporary fastening member.
In order 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 the matched air gun according to the composite material temporary fastening piece, clamping the air gun, and installing 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, and the composite temporary fastener with the sheet of composite material;
tripping the air gun to install the composite temporary fastener into the composite panel;
and recording display parameters of the torque sensor and the pressure sensor, and calculating a mapping relation between the air pressure and the torque of the air gun and the clamping force generated by the composite material temporary fastener.
The invention has the beneficial effects that:
the composite material temporary fastening piece is installed in the composite material plate by arranging the air gun, a torque sensor for detecting the torque of an output shaft of the air gun, an installer for installing the composite material temporary fastening piece and a pressure sensor for detecting the clamping force generated when the composite material temporary fastening piece is installed on the composite material plate, so that the air gun drives the installer and the composite material temporary fastening piece to slide on the bottom plate; simultaneously 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 composite material temporary fastening piece, so that the composite material temporary fastening piece can be accurately installed, and the problem that the final assembly of the composite material plate is influenced due to the fact that the clamping force is too large or too small can be solved; the verification operation is simple, the method has important guiding significance on the actual production field, and the method is favorable for realizing accurate pre-connection of the composite material thin-wall structure; and the composite temporary fastening piece, the installer, the torque sensor, the pressure sensor and the air gun are coaxial, so that the accuracy of test verification can be ensured.
Drawings
FIG. 1 is a schematic structural diagram of a composite temporary fastener verification device provided in accordance with an embodiment of the present invention;
FIG. 2 is an exploded schematic view of a composite temporary fastener verification device provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a method for using a composite temporary fastener verification device according to a second embodiment of the present invention.
Description of reference numerals:
1-a bottom plate; 2-a slide rail; 3-a baffle plate; 4-a slide block; 5-a first positioning member; 6-air gun; 7-a first clamping member; 8-socket head cap screw; 9-a first coupling; 10-a first support; 11-a second positioning element; 12-a torque sensor; 13-a third positioning element; 14-a second clamping member; 15-an installer; 16-composite temporary fasteners; 17-a second support; 18-a fourth positioning element; 19-a pressure sensor; 20-a composite sheet; 21-long plum blossom screw; 22-a positioning frame; 23-side plate; 24-standing the plate; 25-hexagonal clamping shaft.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features. Like reference numerals refer to like elements throughout the specification.
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
Example one
In this embodiment, a verification device for a temporary composite fastener is provided, which can be used to accurately verify a mapping relationship between installation process parameters of an air gun 6 and a clamping force generated by the temporary composite fastener 16, so as to implement accurate installation of the temporary composite fastener 16.
Specifically, as shown in fig. 1 and 2, the composite temporary fastener verifying apparatus includes a base plate 1, an air gun 6 capable of sliding on the base plate 1, a torque sensor 12, a mounter 15, and a pressure sensor 19. The torque sensor 12 can slide on the bottom plate 1, the torque sensor 12 is coaxially connected with an output shaft of the air gun 6 through a first coupler 9, and the torque sensor 12 is used for detecting the torque of the output shaft of the air gun 6; the mounting device 15 can slide on the base plate 1, one end of the mounting device 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 coupler, and the hexagonal clamping shaft 25 is in transition fit with a hexagonal prism in the mounting device 15, so that the air gun 6 can drive the mounting device 15, and the composite temporary fastening piece 16 can be mounted and dismounted; the other end of the mounting device 15 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 bottom plate 1 so as to mount the composite material temporary fastening piece 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 panel 20, and the composite temporary fastener 16, the mounting device 15, the torque sensor 12, the pressure sensor 19 are coaxial with the air gun 6.
Installing the composite temporary fasteners 16 into the composite material plates 20 by providing the air guns 6, torque sensors 12 for detecting the torque of the output shafts of the air guns 6, mounters 15 for mounting the composite temporary fasteners 16, and pressure sensors 19 for detecting the clamping force generated when the composite temporary fasteners 16 are mounted to the composite material plates 20, so that the air guns 6 drive the mounters 15 and the composite temporary fasteners 16 to slide on the base plate 1; simultaneously recording display parameters of the torque sensor 12 and the pressure sensor 19, and calculating to obtain a mapping relation between air pressure and torque of the air gun 6 and clamping force generated by the composite material temporary fastening piece 16, so that the composite material temporary fastening piece 16 can be accurately installed, the problem that final assembly of the composite material plate 20 is influenced due to too large or too small clamping force is solved, the verification operation is simple, the method has important guiding significance on an actual production field, and the method is favorable for realizing accurate pre-connection of a composite material thin-wall structure; and the composite material temporary fastening piece 16, the mounting device 15, the torque sensor 12 and the pressure sensor 19 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 verifying apparatus further includes a spacer 22 and a side plate 23. The positioning frame 22 is provided with a U-shaped frame for placing and fixing the composite plates 20, and the thickness of the U-shaped frame is adjustable, so that the composite plates 20 with different thicknesses can be placed in the U-shaped frame conveniently, and further, clamping force verification tests can be performed on the composite plates 20 with different thicknesses; the side plates 23 are respectively arranged on two sides of the positioning frame 22 and abut against two ends of the composite material plate 20, so that the composite material plate 20 is prevented from sliding off the positioning frame 22, and the whole installation process is prevented from being influenced. Wherein, be provided with a plurality of long plum blossom screws 21 on the riser 24 of U type frame, through the length that the tip of adjusting long plum blossom screw 21 gets into in riser 24 to the thickness of adjusting U type frame. In this embodiment, the number of the long torx screws 21 is four, and two long torx screws 21 are disposed on each vertical plate 24, so as to fix the composite material plate 20 on the U-shaped frame.
Specifically, as shown in fig. 2, the composite temporary fastener verifying apparatus 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 mode, and the first positioning piece 5 is used for positioning and placing an air gun 6; the first clamping piece 7 is arranged at the top end of the first positioning piece 5, the air gun 6 is placed between the first positioning piece 5 and the first clamping piece 7, and the first positioning piece 5 and the first clamping piece 7 are fixed through the hexagon socket head cap screws 8 so as to clamp the air gun 6.
Further, as shown in fig. 2, the composite temporary fastener verifying apparatus further includes a first support 10 and a second positioning member 11. The first support 10 is arranged on the base plate 1 in a sliding manner, and the first support 10 is used for supporting the torque sensor 12; the second positioning member 11 is fixedly disposed at a top end of the first supporting member 10, the torque sensor 12 is fixedly disposed at a top end of the second positioning member 11, and the second positioning member 11 is used for positioning the torque sensor 12.
Specifically, as shown in fig. 2, the composite temporary fastener verifying apparatus 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 mounting device 15; the second clamping member 14 is disposed at the top end of the third positioning member 13, and the mounting device 15 is disposed 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 by the socket head cap screws 8 to clamp the mounting device 15.
Further, as shown in fig. 2, the composite temporary fastener verifying apparatus further includes a second supporting member 17 and a fourth positioning member 18. The second supporting piece 17 is arranged at the top end of the bottom plate 1 in a sliding mode, and the second supporting piece 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 used to position the pressure sensor 19. The bottom plate 1, the first positioning member 5, the first supporting member 10, the first clamping member 7, the second positioning member 11, the third positioning member 13, the second clamping member 14, the fourth positioning member 18, the second supporting member 17, the positioning frame 22 and the side plate 23 are all made of aluminum alloy materials, and are subjected to sand blasting treatment on the outer side surfaces, so that the mechanical performance of the outer side surfaces is improved, and the fatigue resistance of the outer side surfaces is improved. The composite material plate 20 and the fourth positioning member 18 can be pulled out to study the relation of the change of the clamping force generated by the composite material temporary fastening member 16 along with time or study other mapping relations, so that the composite material temporary fastening member verification device can be fully utilized, and the practicability is good.
Specifically, as shown in fig. 2, a slide rail 2 is further disposed on the bottom plate 1, a plurality of sliders 4 are slidably disposed on the slide rail 2, and the sliders 4 can slide along the slide 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, so as to advance and retreat the air gun 6, so as to complete the tightening of the composite temporary fastening member 16 and the dismounting and mounting of the composite temporary fastening member 16. Wherein, the one end of keeping away from composite board 20 on slide rail 2 is provided with baffle 3, and baffle 3 is used for keeping out slider 4 to avoid setting up the slider 4 that sets up in first locating piece 5 bottom to break away from slide rail 2, in order to guarantee whole verification process, combined material temporary fastening piece 16, erector 15, torque sensor 12, pressure sensor 19 and air gun 6 are coaxial all the time, thereby guaranteed the accuracy of test verification.
Example two
In this embodiment, a method of using a composite temporary fastener verification device as in the first embodiment is provided, including the steps of: as shown in fig. 3, first, according to the composite material temporary fastener 16 to be tested, the model of the air gun 6 matched with the composite material temporary fastener is selected, and the air gun 6 is installed between the first positioning member 5 and the first clamping member 7 to clamp the air gun 6, and the composite material temporary fastener 16 is installed in the installer 15; the air gun 6 is then advanced so that the air gun 6 is connected to the torque sensor 12, the torque sensor 12 to the installer 15, the installer 15 to the composite temporary fastener 16, and the composite temporary fastener 16 to the composite panel 20.
Then, after the composite temporary fastener 16 is pressed against the composite panel 20, the trigger of the air gun 6 is pulled to push the composite temporary fastener 16 to move in a direction close to the composite panel 20 so as to install the composite temporary fastener 16 into the composite panel 20; by enabling the air gun 6 to output different rotating speeds and torques under different input air pressures for installing the composite material temporary fastening piece 16, the composite material temporary fastening piece 16 generates different clamping forces, and different display parameters of the torque sensor 12 and the pressure sensor 19 are recorded.
And finally, a plectrum for controlling the positive and negative rotation on the air gun 6 is pulled, a trigger of the air gun 6 is pulled so as to detach the temporary composite material fastening piece 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 fastening piece 16 is accurately calculated according to different recorded display parameters of the torque sensor 12 and the pressure sensor 19.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.