CN110666493A - Automatic installation device for temporary composite fasteners - Google Patents

Abstract

The invention discloses an automatic installation device for composite material temporary fasteners, which relates to the field of automobile, ship and aerospace assembly and manufacturing. an inlet motor, a front control mounting frame and a rear card board; the support shell includes a left support shell and a right support shell; the left support shell and the right support shell are fixed on the base; the base is fixed on the on the connecting piece; the connecting piece is fixed on the robot; the left support shell and the right support shell are provided with grooves matching the shape of the air gun for positioning the air gun and allowing it to slide inside. The present invention has a high degree of fit between the installation operation simulation and the actual working conditions, ensures the installation and clamping force of the composite material temporary fastener, improves the pre-connection quality of the composite material temporary fastener, and effectively improves the installation efficiency of the composite material temporary fastener.

Description

An automatic installation device for composite temporary fasteners

technical field

The invention relates to the field of assembly and manufacture of machinery, automobiles, ships, aerospace components and components, in particular to an automatic installation device for composite material temporary fasteners.

Background technique

In the assembly process of many mechanical products, before the final assembly of the composite thin-walled structure, one or more rows of mounting holes need to be drilled on it. In order to eliminate the gap between the parts and avoid the occurrence of more burrs affecting the holes To improve the processing quality, and to avoid the movement between parts during processing to affect the alignment of the holes during final assembly, it is necessary to install fasteners in the pre-machined positioning holes. Commonly used fasteners include rivets, bolts, etc. However, in the assembly site, in many cases, due to the limitation of space, only one-sided operation of the thin-walled structure of composite materials can be performed. At this time, temporary fasteners of composite materials need to be used, and the installation operation is carried out with pneumatic tools.

Correct operation can result in different clamping forces in composite temporary fasteners. Larger clamping force is very beneficial for eliminating gaps between thin-walled composite parts, increasing the stiffness of composite parts, and achieving more stable positioning; but at the same time, larger clamping force may also give holes to composite parts. The damage to the wall and the edge of the hole will bring hidden dangers to the bearing performance and fatigue life of the machine. During the installation of composite temporary fasteners, if the operation is improper, such as the pneumatic installation tools and composite temporary fasteners are not aligned with the composite hole axis, the clamping force will be quite different from the expected value. Or when the pneumatic installation tool is withdrawn, improper operation will cause secondary damage to the edge of the composite hole.

Therefore, those skilled in the art are committed to developing an automatic installation device for composite temporary fasteners, which solves the problems that the characteristics of the traditional manual installation process are difficult to simulate, the consistency of the pre-connection clamping force is poor, it is easy to cause damage to the edge of the composite material hole, and the traditional manual installation process is difficult to simulate. Installation inefficiency and other issues.

SUMMARY OF THE INVENTION

Aiming at the defects of the existing manual installation of composite material temporary fasteners, the present invention provides an automatic installation device for composite material temporary fasteners, and the simulation of the characteristics of the manual installation process is realized through the device, and the pre-connection clamping is guaranteed. The force is consistent and the edge of the composite material hole is not damaged, which improves the installation efficiency of the composite material temporary fastener.

In order to achieve the above purpose, the present invention provides an automatic installation device for composite temporary fasteners, including a connector, a base, an electrical proportional valve, a support shell, a spring, a laser sensor, an air gun, a camera, a stepper motor, and a front control installation. the support shell includes a left support shell and a right support shell; the left support shell and the right support shell are fixed on the base; the base is fixed on the connecting piece; the The connecting piece is fixed on the robot; the left support shell and the right support shell are provided with grooves matching the shape of the air gun for positioning the air gun and allowing it to slide inside; the front control mounting bracket and the The rear clamping plate is fixed on the handle of the air gun through forced assembly; the spring is arranged between the tail of the air gun and the electric proportional valve; the electric proportional valve is arranged between the front control mounting frame and the between the handles of the air gun; the electric proportional valve is arranged between the spring and the back plate of the support housing.

Further, the detection system composed of the laser sensor and the camera can realize the centering of the air gun and the installation hole.

Further, the stepper motor is used to adjust the forward and reverse wrench of the air gun.

Further, the electrical proportional valve is used to adjust the installation air pressure of the air gun.

Further, when the front end of the air gun is pressed, the spring is compressed, and then the air gun slides in the support housing.

Further, there is a bump on the front control mounting bracket to push the trigger of the air gun to death.

In a preferred embodiment of the present invention, one of the laser sensors is provided on the left side and the right side of the support housing, respectively.

Further, the camera is arranged on the upper side of the support casing.

Further, the base, the left support shell, the right support shell, the front control mounting frame and the rear card board are all made of aluminum alloy, and the outer surface is sandblasted.

The present invention also provides an operation method of the composite material temporary fastener automatic installation device, the steps are as follows:

Step 1. According to the composite material temporary fastener to be installed, select the corresponding air gun, install the air gun into the composite material temporary fastener automatic installation device, and connect the composite material temporary fastener automatic installation device with the robot;

Step 2. Rotate the joints of the robot through the operating system, adjust the pose of the composite temporary fastener automatic installation device, and install the composite temporary fastener into the air gun;

Step 3. Rotate the joint of the robot through the operating system, adjust the pose of the composite temporary fastener automatic installation device, and complete the alignment of the air gun and the installation hole under the feedback of the laser sensor and the camera;

Step 4. Rotate the joints of the robot through the operating system, insert the composite material temporary fasteners into the installation holes and push them tightly;

Step 5. Power on and ventilate to complete the tightening of the composite temporary fasteners;

Step 6. Rotate the joints of the robot through the operating system to complete the withdrawal of the automatic installation device for the composite material temporary fastener.

Beneficial effects:

The invention provides an automatic installation device for composite material temporary fasteners. Using the automatic installation device, the automatic installation of composite material temporary fasteners can be completed; the composite material temporary fasteners and installation holes can be automatically completed by a laser sensor and a camera. Through the control of the pneumatic installation tool by the stepping motor, the tightening and unloading of the composite material temporary fasteners are completed; the control of the tightening air pressure is completed through the electric proportional valve; Intelligent operation for the installation of various composite material temporary fasteners in mechanical assembly, high degree of freedom, high degree of fit between installation operation simulation and actual working conditions, ensuring the installation and clamping force of composite material temporary fasteners, improving The pre-connection quality of composite temporary fasteners can effectively improve the installation efficiency of composite temporary fasteners.

The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present invention.

Description of drawings

1 is a schematic diagram of the overall structure of the operation of the automatic installation device for composite temporary fasteners of the present invention;

2 is a schematic structural diagram of an automatic installation device for composite temporary fasteners of the present invention;

Figure 3 is a flow chart of the operation of the composite temporary fastener automatic installation device of the present invention.

Among them: 1 is the automatic installation device for composite temporary fasteners, 1-1 is the connecting piece, 1-2 is the base, 1-3 is the electric proportional valve, 1-4 is the left support shell, 1-5 is the laser sensor, 1-6 is the spring, 1-7 is the camera, 1-8 is the air gun, 1-9 is the front control mount, 1-10 is the stepper motor, 1-11 is the rear card board, 1-12 is the right support shell , 2 is the robot.

Detailed ways

The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

In the drawings, structurally identical components are denoted by the same numerals, and structurally or functionally similar components are denoted by like numerals throughout. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thicknesses of components are appropriately exaggerated in some places in the drawings.

As shown in FIG. 1 , the technical solution of the present invention provides an automatic installation device for composite temporary fasteners, and the automatic installation device 1 for composite temporary fasteners is fixedly connected to the robot 2 through a connector 1-1. The robot 2 can be fixed on a lift or a workbench/frame, and the lift or workbench/frame can be used to adjust the height of the robot and provide it with positioning and support.

As shown in Figure 2, the composite temporary fastener automatic installation device includes a connector 1-1, a base 1-2, an electrical proportional valve 1-3, a support shell, a spring 1-6, a laser sensor 1-5, Air gun 1-8, camera 1-7, stepping motor 1-10, front control mounting frame 1-9 and rear card board 1-11; the support shell includes left support shell 1-4 and right support shell 1-12 ; the left support shell 1-4 and the right support shell 1-12 are fixed on the base 1-2; the base 1-2 is fixed on the connecting piece 1-1; the connecting piece 1 -1 is fixed on the robot 2; the left support shell 1-4 and the right support shell 1-12 have grooves matching the shape of the air gun 1-8 for positioning the air gun 1-8 and For it to slide inside; the front control mounting bracket 1-9 and the rear card board 1-11 are fixed on the handle of the air gun 1-8 by forced assembly; the spring 1-6 is arranged on the air gun Between the tail of 1-8 and the electric proportional valve 1-3; the electric proportional valve 1-3 is arranged between the front control mounting frame 1-9 and the handle of the air gun 1-8; the electric proportional valve 1-3 A proportional valve 1-3 is provided between the spring 1-6 and the rear plate of the support housing.

The detection system composed of the laser sensor 1-5 and the camera 1-7 can realize the centering of the air gun 1-8 and the installation hole.

The stepping motors 1-10 are used to adjust the forward and reverse wrenches of the air guns 1-8.

The electrical proportional valve 1-3 is used to adjust the installation air pressure of the air gun 1-8.

When the front end of the air gun 1-8 is compressed, the spring 1-6 is compressed, and then the air gun 1-8 slides in the support housing.

In a preferred embodiment of the present invention, there is a bump on the front control mounting bracket 1-9 to push the trigger of the air gun 1-8 to death.

In a preferred embodiment of the present invention, one of the laser sensors 1-5 is provided on the left side and the right side of the support housing, respectively.

In a preferred embodiment of the present invention, the cameras 1-7 are arranged on the upper side of the support housing.

In a preferred embodiment of the present invention, the base 1-2, the left support shell 1-4, the right support shell 1-12, the front control mounting bracket 1-9 and the rear card Plates 1-11 are made of aluminum alloy, and the outer surface is sandblasted.

As shown in Figure 3, the technical solution of the present invention provides an operation method of an automatic installation device for composite temporary fasteners:

Step 1. According to the composite material temporary fastener to be installed, select the corresponding air gun 1-8, install the air gun 1-8 into the composite material temporary fastener automatic installation device 1, and automatically install the composite material temporary fastener Device 1 is connected to robot 2;

Step 2. Rotate the joints of the robot 2 through the operating system, adjust the posture of the composite material temporary fastener automatic installation device 1, and install the composite material temporary fasteners into the air guns 1-8;

Step 3. Rotate the joint of the robot 2 through the operating system, adjust the pose of the composite temporary fastener automatic installation device 1, and complete the connection between the air gun 1-8 and the installation hole under the feedback of the laser sensor 1-5 and the camera 1-7. center;

Step 4. Rotate the joints of robot 2 through the operating system, insert the composite material temporary fasteners into the installation holes and push them tightly;

Step 5. Power on and ventilate to complete the tightening of the composite temporary fasteners;

Step 6: Rotate the joints of the robot 2 through the operating system to complete the withdrawal of the automatic installation device 1 for the composite temporary fastener.

The preferred embodiments of the present invention have been described in detail above. It should be understood that many modifications and changes can be made according to the concept of the present invention by those skilled in the art without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art through logical analysis, reasoning or limited experiments on the basis of the prior art according to the concept of the present invention shall fall within the protection scope determined by the claims.

Claims (10)

1. An automatic installation device for composite temporary fasteners, characterized in that it comprises a connector, a base, an electrical proportional valve, a support shell, a spring, a laser sensor, an air gun, a camera, a stepping motor, a front control mounting frame and a rear a card board; the support shell includes a left support shell and a right support shell; the left support shell and the right support shell are fixed on the base; the base is fixed on the connecting piece; the connecting piece is fixed On the robot; the left support shell and the right support shell have grooves matching the shape of the air gun for positioning the air gun and sliding it inside; the front control mounting bracket and the rear The clamping plate is fixed on the handle of the air gun by forced assembly; the spring is arranged between the tail of the air gun and the electric proportional valve; the electric proportional valve is arranged between the front control mounting frame and the air gun. between the handles; the electrical proportional valve is arranged between the spring and the back plate of the support housing. 2 . The automatic installation device for composite temporary fasteners according to claim 1 , wherein the detection system composed of the laser sensor and the camera can realize the centering of the air gun and the installation hole. 3 . 3 . The automatic installation device for composite temporary fasteners according to claim 1 , wherein the stepping motor is used to adjust the forward and reverse wrench of the air gun. 4 . 4 . The automatic installation device for composite temporary fasteners according to claim 1 , wherein the electric proportional valve is used to adjust the installation air pressure of the air gun. 5 . 5 . The automatic installation device for composite material temporary fasteners according to claim 1 , wherein when the front end of the air gun is compressed, the spring is compressed, and the air gun slides in the support shell. 6 . 6 . The automatic installation device for composite material temporary fasteners according to claim 1 , wherein, there is a bump on the front control installation frame to push the trigger of the air gun to death. 7 . 7 . The automatic installation device for composite temporary fasteners according to claim 1 , wherein the laser sensors are provided on the left side and the right side of the support shell, respectively. 8 . 8 . The automatic installation device for composite temporary fasteners according to claim 1 , wherein the camera is arranged on the upper side of the support shell. 9 . 9 . The automatic installation device for composite temporary fasteners of claim 1 , wherein the base, the left support shell, the right support shell, the front control mount and the rear card The plates are made of aluminum alloy, and the outer surface is sandblasted. 10. A method for operating the device for automatic installation of composite temporary fasteners according to any one of claims 1-9, wherein the steps are as follows: Step 1. According to the composite material temporary fastener to be installed, select the corresponding air gun, install the air gun into the composite material temporary fastener automatic installation device, and connect the composite material temporary fastener automatic installation device with the robot; Step 2. Rotate the joints of the robot through the operating system, adjust the pose of the composite temporary fastener automatic installation device, and install the composite temporary fastener into the air gun; Step 3. Rotate the joint of the robot through the operating system, adjust the pose of the composite temporary fastener automatic installation device, and complete the alignment of the air gun and the installation hole under the feedback of the laser sensor and the camera; Step 4. Rotate the joints of the robot through the operating system, insert the composite material temporary fasteners into the installation holes and push them tightly; Step 5. Power on and ventilate to complete the tightening of the composite temporary fasteners; Step 6. Rotate the joints of the robot through the operating system to complete the withdrawal of the automatic installation device for the composite material temporary fastener.

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