Special automatic gluing device for aircraft fire alarm sensor

Abstract

The invention belongs to the technical field of aviation fire alarm sensor sealant coating equipment, and relates to a special automatic gluing device for an airplane fire alarm sensor. According to the invention, each part is miniaturized, so that the coating operation can be conveniently carried out in a narrow environment in a cabin, the screw pump can improve the coating precision, and the clamping cylinder is adopted for supplying glue, so that the device is suitable for aviation sealants with different packages, different viscosities and different properties. According to the sealant coating device, intelligent control over the sealant discharging mechanism is achieved through the touch screen and the PLC all-in-one machine, and equipment parameters such as the sealant discharging amount, the sealant discharging speed and the sealant discharging time can be accurately controlled, so that the overall sealant coating quality, coating precision and sealant dosage control are improved, and workers can conveniently conduct coating work. Under the same conditions, the gluing time of the device special for automatic gluing is 3 minutes, the time of traditional manual non-automatic gluing is 34 minutes, and the efficiency is improved by 91% on year-on-year basis.

Description

Technical Field

[0001] The invention belongs to the technical field of sealant coating equipment for aviation fire alarm sensors, and relates to a special automatic glue coating device for aircraft fire alarm sensors. Background Art

[0002] In modern aircraft manufacturing, the workload of the aircraft assembly process accounts for about 40% to 50% of the overall aircraft manufacturing process. Due to the very strict requirements on the sealing performance of the aircraft, it is necessary to apply sealant to multiple structures and positions of the assembled aircraft, and because of the diversity of the coating structure characteristics, this work not only has a large workload in the entire aircraft assembly process, but also has an impact on the overall quality of the aircraft that cannot be ignored.

[0003] At present, there are two ways to apply sealant to aircraft: manual application by workers and robot application. Manual application by workers is limited by the size and angle of the glue gun, and has problems such as low production efficiency, high labor intensity, uneven glue application, and the quality of glue application largely depends on the workers' labor skills. It cannot meet the urgent requirements of the rapid development of my country's aircraft manufacturing industry. Robot glue application can ensure a higher coating quality, but due to the limitation of the robot size, it can only be used for sealant application of large size and simple structure such as aircraft wall panels. For the sealant application in the narrow environment of the aircraft cabin, workers have always used manual application, which has problems such as low sealing quality, low work efficiency, and excessive use of sealant. Therefore, in view of the above problems, a special automatic glue application device for aircraft fire alarm sensors is proposed. Summary of the invention

[0004] At present, the glue coating technology in aircraft cabins mainly relies on workers to control the glue output, glue output speed, glue output time, etc., which leads to different amounts of sealant used in different places and poor sealant quality. This patent proposes a portable glue coating device that can control various glue coating parameters through a touch screen.

[0005] The technical solution adopted by this patent to solve the above technical problems is:

[0006] A screw pump coating equipment controlled by a touch screen and PLC all-in-one machine. In view of the glue coating accuracy and quality required by the sealant coating process in the aircraft cabin, a precision screw pump is selected for glue coating according to the required glue output and speed, to ensure the glue coating stability and the accuracy of the glue output and speed, and to meet the working conditions in the cabin. A precision screw pump is selected as the glue coating actuator. In order to achieve accurate control of the glue output, speed and time, as well as miniaturization of the overall equipment, a touch screen and PLC all-in-one machine are used to realize the control function.

[0007] A special automatic gluing device for aircraft fire alarm sensors includes a gluing actuator, wherein the output shaft of the motor of the mechanism is connected to the reducer by a coupling to transmit torque; the reducer of the mechanism is connected to the rotor of a screw pump by a coupling to transmit torque; the bearing seat of the mechanism is fixed to the motor fixing seat by overfitting and top screws, the bearing is fixed by boss matching and elastic retaining rings, and the seal is fixed by interference fitting; the motor fixing seat of the mechanism is connected to the reducer by screws, and is connected to the front cover of the motor by screws; the suction chamber of the mechanism is fixed to the seal by interference fitting, the stator of the screw pump is fixed by overfitting and top screws, and the discharge body is connected by threads; the rotor of the screw pump of the mechanism is overfitted to the stator of the screw pump. When the gluing actuator is working, the motor provides torque to the screw pump, and after the screw pump rotor rotates, the sealant glue liquid in the suction chamber is passed through the fitting between the rotor and the stator through the rotation of the screw pump rotor to achieve gluing. When the screw pump rotor rotates forward, the glue discharge function is realized; when the screw pump rotor rotates reversely, the back-suction function is realized, and the back-suction can be realized through another glue path interface of the suction chamber. The seal ensures that the glue in the suction chamber will not leak.

[0008] like Figure 2 As shown, the equipment cartridge is connected to the gas source through an air pipe, and is connected to the gluing actuator through an air pipe and a transfer valve; the gluing actuator of the equipment is connected to the touch screen control box through a motor line; the touch screen control box of the equipment is connected to the portable battery through a power line, and an external start button can be connected to the gluing actuator to realize electric gluing. When the equipment is working, first confirm that the connection parts are normal, turn on the portable battery switch, supply power to the touch screen control box, press the power switch of the control box, and turn on the equipment. The control system can realize the functions of operator and administrator two-level login, personnel information entry, equipment parameter input, data viewing, data export, continuous interval gluing, automatic gluing, manual gluing, delayed start, abnormal alarm, etc. After the gas source is connected, the rubber cylinder in the cartridge is squeezed and glue is supplied to the gluing actuator. After clicking the start button of the control box, the motor works, and the gluing actuator realizes the gluing or back-sucking function.

[0009] The glue dispensing actuator of the equipment includes a screw pump, a motor, a reducer, a cartridge, a bearing seat, a suction chamber, a transfer valve, a housing, and various sealing components. For this system, since the viscosity of the vulcanized rubber is relatively strong and the equipment needs to be light and portable, the use of a screw pump can greatly reduce the volume, and the improvement of mechanical efficiency ensures the endurance of the equipment. The mechanical structure of the screw pump is more convenient for cleaning and maintenance, and the durability and life of the equipment are also greatly improved.

[0010] Preferably, after the screw pump is determined, the models and parameters of the motor and reducer are also determined, mainly considering the speed range of the screw pump, the maximum torque of the screw pump, and the size of the glue discharging actuator. After the motor is connected to the reducer, the reducer output shaft is connected to the screw pump through a coupling to transmit power.

[0011] Preferably, the cartridge of the sealant is selected. The cartridge plays the role of supplying sealant to the screw pump. There are many types of aviation sealants, including single-component and multi-component, and the packaging also has toothpaste tube packaging and rubber cartridge packaging, so a cartridge suitable for various forms and sizes is selected. The cartridge is connected to an external air source to squeeze the sealant to supply the screw pump, so the sealing of the cartridge is also very important.

[0012] Preferably, the bearing seat is designed. The main function of the bearing seat is to fix the bearing of the screw pump, as well as the suction chamber and the housing. The bearing and the bearing seat are fixed with a concave platform and an elastic retaining ring; a sealing ring is required between the suction chamber and the bearing seat to prevent leakage of the glue.

[0013] Preferably, the suction chamber is designed to fix the screw pump stator and store the sealant provided by the cartridge. The surface of the suction chamber needs to be coated to reduce its effect on the fluidity of the sealant and avoid affecting the glue supply of the equipment. The suction chamber and the screw pump stator are fixed by overfitting and top screws, and the housing and the bearing seat are fixed by screws, and a sealing gasket needs to be installed to prevent glue leakage.

[0014] Preferably, each seal is designed. The seal is mainly used between the suction chamber and the housing, and between the end of the screw pump rotor and the front nozzle.

[0015] Preferably, the housing is designed. The design of the housing mainly considers that the connection and fit between the various parts need to be tight, and the size and shape need to be convenient for workers to hold and operate and easy to process. The housing is mainly composed of a screw pump housing, a motor front housing, and a housing. The screw pump housing is connected to the suction chamber and the bearing seat by screws, the motor front housing is connected to the motor and the reducer by screws, and the motor rear housing is connected to the motor front housing by threads, which is mainly used to facilitate the installation of the motor, the reducer, and the motor connection line.

[0016] Preferably, the touch screen, PLC all-in-one control system functions and shell are developed, and the integrated electronic control system is convenient for workers to carry and operate, and is suitable for working in the narrow space of the cabin. The system function can realize the two-level login of operators and administrators, personnel information entry, equipment parameter input, data viewing, data export, continuous interval gluing, automatic gluing, manual gluing, delayed start, abnormal alarm, etc., and through the control of the screw pump speed, rotation time, forward and reverse rotation, the glue output amount, glue output time, and glue output speed can be accurately controlled to achieve precise gluing.

[0017] A special device for automatic glue application for aircraft fire alarm sensors, the steps are as follows:

[0018] Step 1: Turn on the portable battery and the touch screen control box.

[0019] Step 2: Operate the touch screen control box, enter the login interface, select the user login type, and enter the password to log in.

[0020] Step 3: Operate the touch screen control box to select continuous automatic gluing and one-way automatic gluing.

[0021] Step 4: Operate the touch screen control box to set process parameters such as glue coating time, glue output, glue coating times and coating process.

[0022] Step 5: Turn on the external air source.

[0023] Step 6: Operate the touch screen control box to start automatic gluing.

[0024] Step 7: Operate the touch screen control box to turn off the automatic gluing process.

[0025] Step 8: Clean the glue-coated actuator and submit it to the inspector for inspection and acceptance.

[0026] Beneficial effects of the present invention:

[0027] 1. The specific structure of the screw pump as the glue actuator is designed, and each part is miniaturized to facilitate the coating operation in the narrow environment of the cabin. The screw pump can improve the coating accuracy, and the use of cartridges for glue supply can be applicable to a variety of aviation sealants with different packaging, viscosities and properties.

[0028] 2. Intelligent control of the glue dispensing mechanism is realized through the touch screen and PLC all-in-one machine, which can accurately control equipment parameters such as glue dispensing amount, glue dispensing speed, glue dispensing time, etc., thereby improving the overall sealant coating quality, coating accuracy and sealant dosage control, making it convenient for workers to carry out coating work.

[0029] 3. Under the same conditions, the gluing time using the automatic gluing device described in the patent of this invention is 3 minutes, and the time using traditional manual non-automatic gluing is 34 minutes, which is 91% higher than the same period last year. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the assembly of the patented glue-coating actuator;

[0031] Figure 2 This is a connection diagram of the overall equipment of this patent.

[0032] Among them: 1-motor; 2-reducer; 3-bearing seat; 4-motor fixing seat; 5-coupling; 6-elastic retaining ring; 7-bearing; 8-seal; 9-suction chamber; 10-rotor; 11-stator; 12-discharge body; 13-motor rear cover; 14-motor front cover; 15-screw pump housing; 16-cartridge; 17-glue coating actuator; 18-touch screen control box; 19-portable battery. DETAILED DESCRIPTION

[0033] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions.

[0034] Embodiment 1:

[0035] A special automatic glue coating device for aircraft fire alarm sensors, including a glue coating actuator 17, wherein the output shaft of the mechanism motor 1 is connected to the reducer 2 by a coupling to transmit torque; the mechanism reducer 2 is connected to the screw pump rotor 10 by a coupling 5 to transmit torque; the mechanism bearing seat 3 is fixed to the motor fixing seat 4 by overfitting and top screws, is fixed to the bearing 7 by boss matching and elastic retaining ring 6, and is fixed to the seal 8 by interference fitting; the mechanism motor fixing seat 4 is connected to the reducer 2 by screws, and is connected to the motor front cover 14 by screws; the mechanism suction chamber 9 is fixed to the seal 8 by interference fitting, is fixed to the screw pump stator 11 by overfitting and top screws, and is connected to the discharge body 12 by threads; the mechanism screw pump rotor 10 is overfitted to the screw pump stator 11. When the gluing actuator 17 is working, the motor 1 provides torque to the screw pump. After the screw pump rotor rotates, the sealant glue liquid in the suction chamber is sucked in. The glue liquid passes through the fitting between the rotor and the stator through the rotation of the screw pump rotor 10 to achieve gluing. When the screw pump rotor 10 is running forward, the glue discharge function is realized; when the screw pump rotor 10 is reversed, the back suction function is realized, and the back suction can be realized through another glue path interface of the suction chamber 9. The seal ensures that the glue liquid in the suction chamber 9 will not leak.

[0036] like Figure 2As shown, the equipment cartridge 16 is connected to the gas source through an air pipe, and is connected to the gluing actuator 17 through an air pipe and a transfer valve; the equipment gluing actuator 17 is connected to the touch screen control box 18 through a motor 1 line; the equipment touch screen control box 18 is connected to the portable battery 19 through a power line, and an external start button can be connected to the gluing actuator 17 to realize electric gluing. When the equipment is working, first confirm that the connection parts are normal, turn on the portable battery switch, supply power to the touch screen control box, press the power switch of the control box, and turn on the equipment. The control system can realize the functions of operator and administrator secondary login, personnel information entry, equipment parameter input, data viewing, data export, continuous interval gluing, automatic gluing, manual gluing, delayed start, abnormal alarm, etc. After the gas source is connected, the rubber cylinder in the cartridge 16 is squeezed and glue is supplied to the gluing actuator 17. After clicking the start button of the control box, the motor 1 works, and the gluing actuator 17 realizes the gluing or back suction function.

[0037] The glue dispensing actuator of the equipment includes a screw pump, a motor 1, a reducer 2, a cartridge, a bearing seat 3, a suction chamber 9, a transfer valve, a housing, and various sealing components. For this system, since the viscosity of the vulcanized rubber is relatively strong and the equipment needs to be light and portable, the use of a screw pump can greatly reduce the volume, and the improvement of mechanical efficiency ensures the endurance of the equipment. The mechanical structure of the screw pump is more convenient for cleaning and maintenance, and the durability and life of the equipment are also greatly improved.

[0038] After the screw pump is determined, the models and parameters of motor 1 and reducer 2 are also determined, mainly considering the speed range of the screw pump, the maximum torque of the screw pump, and the size of the glue discharging actuator. After the motor 1 is connected to the reducer 2, the output shaft of the reducer 2 is connected to the screw pump through a coupling to transmit power.

[0039] The cartridge 16 of the sealant is selected. The cartridge 16 plays the role of supplying sealant to the screw pump. There are many types of aviation sealants, including single-component and multi-component, and the packaging also has toothpaste tube packaging and rubber cartridge packaging, so the cartridge 16 suitable for various forms and sizes is selected. The cartridge 16 is connected to an external air source to squeeze the sealant to supply the screw pump, so the sealing performance of the cartridge 16 is also very important.

[0040] Preferably, the bearing seat 3 is designed. The main function of the bearing seat 3 is to fix the bearing of the screw pump, as well as the suction chamber 9 and the housing. The bearing and the bearing seat 3 are fixed with a concave platform and an elastic retaining ring; a sealing ring is required between the suction chamber 9 and the bearing seat 3 to prevent leakage of the glue.

[0041] The suction chamber 9 is designed to fix the screw pump stator and store the sealant provided by the cartridge. The surface of the suction chamber 9 needs to be coated to reduce its influence on the fluidity of the sealant and avoid affecting the glue supply of the equipment. The suction chamber 9 is fixed to the screw pump stator 11 by overfitting and top screws, and is fixed to the housing and the bearing seat 3 by screws, and a sealing gasket needs to be installed to prevent glue leakage.

[0042] The seals are designed. The seals are mainly used between the suction chamber and the housing, and between the end of the screw pump rotor and the front nozzle.

[0043] The shell is designed. The design of the shell mainly considers the connection and fit between the various parts to be tight, and the size and shape need to be convenient for workers to hold and operate and easy to process. The shell is mainly composed of the screw pump shell and the motor front shell and shell. The screw pump shell is connected to the suction chamber and the bearing seat 3 by screws, the motor front shell is connected to the motor 1 and the reducer 2 by screws, and the motor 1 rear shell is connected to the motor front shell by threads. The main function is to facilitate the installation of the motor 1, the reducer 2, and the motor 1 connection line.

[0044] The touch screen, PLC all-in-one control system functions and shells have been developed. The integrated electronic control system is convenient for workers to carry and operate, and is suitable for working in the narrow space of the cabin. The system functions can realize the two-level login of operators and administrators, personnel information entry, equipment parameter input, data viewing, data export, continuous interval gluing, automatic gluing, manual gluing, delayed start, abnormal alarm, etc. By controlling the speed, rotation time, and forward and reverse rotation of the screw pump, the glue output, glue output time, and glue output speed can be accurately controlled to achieve precise gluing.

[0045] Embodiment 2:

[0046] A special device for automatic glue application for aircraft fire alarm sensors, the steps are as follows:

[0047] Step 1: Turn on the switch of the portable battery 19 and turn on the switch of the touch screen control box 18.

[0048] Step 2: Operate the touch screen control box 18, enter the login interface, select the user login type, and enter the password to log in.

[0049] Step 3: Operate the touch screen control box 18 to select continuous automatic gluing and one-way automatic gluing.

[0050] Step 4: Operate the touch screen control box 18 to set process parameters such as glue coating time, glue output, glue coating times and coating process.

[0051] Step 5: Turn on the external air source.

[0052] Step 6: Operate the touch screen control box 18 to start the automatic gluing process.

[0053] Step 7: Operate the touch screen control box 18 to turn off the automatic gluing process.

[0054] Step 8: Clean the glue-coating actuator 17 and submit it to the inspector for inspection and acceptance.

Claims

1. A special automatic glue coating device for aircraft fire alarm sensors, characterized in that: The invention comprises a glue coating actuator (17) and a glue coating and discharging actuator. The output shaft of the motor (1) is connected to the reducer (2) by a coupling, and the reducer (2) is connected to the screw pump rotor (10) by a coupling (5) to transmit torque. The bearing seat (3) is fixed to the motor fixing seat (4) by overfitting and top screws, fixed to the bearing (7) by boss fitting and elastic retaining ring (6), and fixed to the sealing member (8) by interference fitting. The motor fixing seat (4) is connected to the reducer (2) by screws, and connected to the motor front cover (14) by screws. The suction chamber (9) is connected to the sealing member (8) by interference fitting, fixed to the screw pump stator (11) by overfitting and top screws, and connected to the discharge body (12) by threads. The screw pump rotor (10) is overfitted to the screw pump stator (11). The cartridge (16) is connected to the air source via an air pipe, and is connected to the gluing actuator (17) via an air pipe and a switching valve; the gluing actuator (17) is connected to the touch screen control box (18) via a motor (1) line; the touch screen control box (18) is connected to a portable battery (19) via a power line, and a start button can be externally connected to the gluing actuator (17) to realize electric gluing; The rubber cylinder in the cartridge (16) is squeezed and glue is supplied to the glue-applying actuator (17). After the start button of the control box is clicked, the motor (1) works and the glue-applying actuator (17) realizes the glue-applying or back-sucking function. The glue coating and discharging actuator of the device comprises a screw pump, a motor (1), a reducer (2), a cartridge, a bearing seat (3), a suction chamber (9), a transfer valve, and a housing.

2. The automatic gluing device for aircraft fire alarm sensors according to claim 1, characterized in that: The cartridge (16) serves to supply glue to the screw pump. There are many types of aviation sealants, including single-component and multi-component. The cartridge (16) is connected to an external air source to squeeze the sealant to supply glue to the screw pump, so the sealing performance of the cartridge (16) is also very important.

3. A special automatic glue coating device for aircraft fire alarm sensors as claimed in claim 1 or 2, characterized in that: The bearing seat (3) fixes the bearing of the screw pump, and is fixed to the suction chamber (9) and the housing; the bearing and the bearing seat (3) are fixed by a recess and an elastic retaining ring; a sealing ring is required between the suction chamber (9) and the bearing seat (3) to prevent leakage of the glue.

4. A special automatic glue coating device for aircraft fire alarm sensors as claimed in claim 1 or 2, characterized in that: The suction chamber (9) plays the role of fixing the screw pump stator and storing the sealant provided by the cartridge. The surface of the suction chamber (9) needs to be coated to reduce its influence on the fluidity of the sealant and avoid affecting the supply of glue to the equipment. The suction chamber (9) and the screw pump stator (11) are fixed by overfitting and top screws, and are fixed to the housing and the bearing seat (3) by screws, and a sealing gasket needs to be installed to avoid leakage of the glue.

5. The automatic gluing device for aircraft fire alarm sensors as claimed in claim 3, characterized in that: The suction chamber (9) plays the role of fixing the screw pump stator and storing the sealant provided by the cartridge. The surface of the suction chamber (9) needs to be coated to reduce its influence on the fluidity of the sealant and avoid affecting the supply of glue to the equipment. The suction chamber (9) and the screw pump stator (11) are fixed by overfitting and top screws, and are fixed to the housing and the bearing seat (3) by screws, and a sealing gasket needs to be installed to avoid leakage of the glue.

6. A special automatic glue coating device for aircraft fire alarm sensors as claimed in claim 1, 2 or 5, characterized in that: The screw pump housing is connected to the suction chamber (9) and the bearing seat (3) by screws, the motor front housing is connected to the motor (1) and the reducer (2) by screws, and the motor (1) rear housing is connected to the motor front housing by threads, which mainly facilitates the installation of the motor (1), the reducer (2) and the motor (1) connection line.

7. The automatic glue coating device for aircraft fire alarm sensors as claimed in claim 3, characterized in that: The screw pump housing is connected to the suction chamber (9) and the bearing seat (3) by screws, the motor front housing is connected to the motor (1) and the reducer (2) by screws, and the motor (1) rear housing is connected to the motor front housing by threads, which mainly facilitates the installation of the motor (1), the reducer (2) and the motor (1) connection line.

8. The automatic glue coating device for aircraft fire alarm sensors as claimed in claim 4, characterized in that: The screw pump housing is connected to the suction chamber (9) and the bearing seat (3) by screws, the motor front housing is connected to the motor (1) and the reducer (2) by screws, and the motor (1) rear housing is connected to the motor front housing by threads, which mainly facilitates the installation of the motor (1), the reducer (2) and the motor (1) connection line.

9. A method for using a special automatic glue coating device for aircraft fire alarm sensors, characterized in that: Here are the steps: Step 1: Turn on the switch of the portable battery (19), and turn on the switch of the touch screen control box (18); Step 2: Operate the touch screen control box (18), enter the login interface, select the user login type, and enter the password to log in; Step 3: Operate the touch screen control box (18) to select continuous automatic gluing and one-way automatic gluing; Step 4: operate the touch screen control box (18) to set the glue coating time, glue output, glue coating times and coating process parameters; Step 5: Open the external air source; Step 6: Operate the touch screen control box (18) to start the automatic gluing process; Step 7: Operate the touch screen control box (18) to turn off the automatic gluing process; Step 8: Clean the glue-coated actuator (17) and submit it to the inspector for inspection and acceptance.

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