CN112058808B

CN112058808B - Device for cleaning easily-oxidized parts by sealed laser

Info

Publication number: CN112058808B
Application number: CN202010892721.3A
Authority: CN
Inventors: 任旭东; 刘怀乐; 周王凡; 陈兰; 佟艳群; 潘旭阳
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2022-05-20
Anticipated expiration: 2040-08-31
Also published as: CN112058808A

Abstract

The invention relates to a device for cleaning an oxidizable part by sealed laser, which comprises a laser generator, a shell, ventilation equipment and gas collection equipment, wherein the laser generator is connected with a light path of the cleaning equipment; be provided with anchor clamps and the robot of crawling in the casing, anchor clamps are used for the clamping to wait to wash the part, and the robot of crawling is located the internal face of close housing, installs the telescopic link on the robot of crawling, and the telescopic link passes through connecting plate and connecting block fixed connection, and the both sides of connecting block fixed mounting respectively has first motor and second motor, and first motor is connected with cleaning equipment through first motor shaft, and the second motor is connected with distance measuring sensor through the second motor shaft. The invention can effectively protect the easily oxidized parts from oxidation damage in the laser cleaning process, and can effectively collect waste gas formed in the laser cleaning process in sealed equipment.

Description

Device for cleaning easily-oxidized parts by sealed laser

Technical Field

The invention relates to the field of laser cleaning, in particular to a device for cleaning an easily oxidized part by sealed laser.

Background

The research of the laser cleaning technology starts in the middle of the 80 s, but the laser cleaning technology is not really applied to industrial production until the early 90 s, and the traditional cleaning mode is gradually replaced in many occasions. At present, the laser cleaning decontamination range is very wide, the number of fine particles from a thick rust layer to a polished surface is large, and the wavelength range of the used laser is wide. However, the development of the laser cleaning technology is unbalanced, some of the laser cleaning technologies are industrialized and some of the laser cleaning technologies are still in the laboratory stage, and the prior experiments are theorized, so that the mechanism for removing dirt and rusty spots is continuously expanded and perfected.

The number of airplanes in China is huge, parts of the airplanes need to be depainted and overhauled every 5 years, the existing paint remover method not only pollutes the environment and damages the health of operators, but also is expensive, so that the parts can be cleaned by adopting a laser cleaning mode, but the parts which are easy to oxidize of the airplanes are easy to oxidize in the cleaning process, and waste gas generated in the laser cleaning easily pollutes the environment in an open environment.

Disclosure of Invention

The invention provides a device for cleaning an oxidizable part by sealed laser, which aims to solve the problem that the oxidizable part is oxidized in the cleaning process or a large part is not easy to move due to large volume and weight in the cleaning process, and can effectively collect waste gas generated in the cleaning process without moving the part in the cleaning process.

In order to realize the aim of the invention, the technical scheme adopted by the invention is as follows: the device for cleaning the oxidizable parts by sealed laser comprises a laser generator, a shell, a ventilation device and a gas collection device, wherein the laser generator is connected with a cleaning device in a light path; the cleaning device is characterized in that an anchor clamps and a crawling robot are arranged in the shell, the anchor clamps are used for clamping parts to be washed, the crawling robot is located on the inner wall surface of the closed shell, a telescopic rod is installed on the crawling robot and fixedly connected with a connecting block through a connecting plate, a first motor and a second motor are fixedly installed on two sides of the connecting block respectively, the first motor is connected with the cleaning device through a first motor shaft, and the second motor is connected with a distance measuring sensor through a second motor shaft.

In the above scheme, the casing includes lower hemisphere shell and last hemisphere shell, be provided with second mounting hole and second seal groove on the terminal surface of lower hemisphere shell, be provided with first mounting hole and first seal groove on the terminal surface of last hemisphere shell.

In the scheme, the shell wall of the lower hemispherical shell is provided with a transmission hole, an air inlet and an air outlet, the hydraulic cylinder transmits hydraulic oil to the telescopic rod through the transmission hole, the laser generator transmits laser to the cleaning equipment through the transmission hole, the ventilation equipment transmits protective gas to the shell through the air inlet, and the gas collection equipment collects waste gas in the shell through the air outlet.

In the scheme, the lower hemispherical shell is fixed on the base.

In the above scheme, the laser generator, the hydraulic cylinder, the ventilation device, the gas collection device, the crawling robot, the first motor, the second motor and the distance measurement sensor are all connected with a computer through a controller.

The invention has the beneficial effects that: the invention can clean all areas of the parts by controlling the crawling robot without moving the parts to be cleaned, can adjust the positions at any time according to the positions of the areas to be cleaned, can effectively protect the parts easy to oxidize from oxidation reaction, and is favorable for collecting waste gas generated in the laser cleaning process in sealed equipment.

Drawings

FIG. 1 is a schematic view of the overall structure of the apparatus of the present invention.

Fig. 2 is a schematic view of the structural positions between the crawling robot and the connecting block of the device.

Figure 3 is a schematic diagram of the upper hemispherical shell structure of the device of the present invention.

Fig. 4 is a schematic view of the lower hemispherical shell structure of the device of the present invention.

In the figure: 1. the robot comprises a computer, a controller, a laser generator, a hydraulic cylinder, a ventilation device, a lower hemispherical shell, an upper hemispherical shell, a transmission hole, an air inlet hole, a base, an air outlet hole, a gas collecting device, a second sealing groove, a sealing strip, a part to be washed, a crawling robot, a telescopic rod, a connecting plate, a connecting block, a second motor shaft, a distance measuring sensor, a first motor shaft, a cleaning device, a clamp, a second mounting hole, a first mounting hole and a first sealing groove, wherein the controller, the laser generator, the hydraulic cylinder, the ventilation device, the lower hemispherical shell, the lower half, the.

Detailed Description

The technical solution of the present invention will be described in more detail with reference to the accompanying drawings.

As shown in fig. 1, the device for sealed laser cleaning of an oxidizable component provided by this embodiment includes a computer 1, a controller 2, a laser generator 3, a hydraulic cylinder 4, a ventilator 5, a lower hemispherical shell 6, an upper hemispherical shell 7, a transmission hole 8, an air inlet 9, a base 10, an air outlet 11, an air collecting device 12, a second sealing groove 13, a sealing strip 14, a component 15 to be cleaned, a crawling robot 16, an expansion link 17, a connecting plate 18, a connecting block 19, a second motor 20, a second motor shaft 21, a distance measuring sensor 22, a first motor 23, a first motor shaft 24, a cleaning device 25, a clamp 26, a second mounting hole 27, a first mounting hole 28, and a first sealing groove 29.

As shown in fig. 2, the laser cleaning device 25 is mounted on the first rotating shaft 24 of the first motor 23. The distance sensor 22 is installed on the second rotating shaft 21 of the second motor 20, the first motor 23 and the second motor 20 are installed on two sides of the connecting block 19, the connecting block 19 is installed on the telescopic rod 17 through the connecting plate 18, and the telescopic rod 17 is connected with the crawling robot 16.

As shown in fig. 4, the upper hemispherical shell 7 is provided with a first seal groove 29 and a first mounting hole 28, as shown in fig. 3, and the lower hemispherical shell 6 is provided with a second seal groove 13, a second mounting hole 27, an air inlet hole 9, an air outlet hole 11 and a transfer hole 8.

The part 15 to be washed is fixed on a clamp 26 in the lower hemispherical shell 6, then the upper hemispherical shell 7 equipment is installed, the upper hemispherical shell and the lower hemispherical shell are fixed through a first installation hole 28 and a second installation hole 27, a first sealing groove 29 and a second sealing groove 13 are formed in the upper hemispherical shell and the lower hemispherical shell, and a sealing strip 14 is arranged in the upper hemispherical shell and the lower hemispherical shell; the controller 2 provided with the computer 1 controls the gas collecting device 12 to extract gas in the sphere to form a vacuum state; the controller controls the ventilation equipment 5 to introduce inert gas into the spherical shell, and the part 15 to be cleaned is protected in the laser cleaning process; the distance sensor 22 is capable of measuring the distance between the part to be washed and the cleaning device 25 and transmitting the measurement information to the controller 2; the telescopic rod arranged on the climbing robot 16 adjusts the distance from the cleaning equipment 25 to the part 15 to be cleaned to a proper distance under the control of the hydraulic cylinder 4; the controller 2 controls the laser generator 3 to form laser, the laser passes through a vibrating mirror in the cleaning equipment 25 and then swings in a certain range, meanwhile, the cleaning equipment can be controlled to swing by adjusting the first motor 23, the small area cleaning is completed, the controller 2 adjusts the running track of the climbing robot 16 in the spherical shell at any time, the position of the laser cleaning equipment 25 in the spherical shell inner area is adjusted, the laser cleaning work of different areas is completed, and after the laser cleaning is completed, the gas collecting equipment 12 collects waste gas generated in the cleaning process in the sealed spherical shell. And finally, opening the upper hemispherical shell 7, taking out the part 15 and finishing cleaning.

The present embodiment takes the cleaning of an easily oxidized part of an airplane as an example, and describes the detailed steps of laser cleaning by using the device of the present invention. A. The aircraft part that easily oxidizes is fixed on the inside anchor clamps of lower hemisphere shell, then installs hemisphere equipment for it is fixed with lower hemisphere shell seal to go up the hemisphere shell. B. And gas collecting equipment is adopted to extract gas in the sphere to form a vacuum state. C. The controller controls the ventilation equipment to introduce inert gas into the spherical shell, and the part to be cleaned is protected in the laser cleaning process. D. The distance sensor can measure the distance between the part to be washed and the cleaning equipment, and transmits the measurement information to the controller. E. The telescopic rod arranged on the climbing robot adjusts the cleaning equipment to the part to be cleaned to a proper distance under the control of the hydraulic cylinder. F. The controller controls the laser generator to form laser, the laser passes through the vibrating mirror in the equipment and then swings in a certain range, and meanwhile, the cleaning equipment can be controlled to swing by adjusting the first motor, so that cleaning of a small area is completed. G. The controller is used for adjusting the running track of the climbing robot in the spherical shell at any time, and adjusting the position of the laser cleaning equipment in the inner area of the spherical shell to finish the laser cleaning work in different areas. H. After the laser cleaning is finished, the gas collecting device collects waste gas generated in the cleaning process in the sealed spherical shell.

Claims

1. A device for sealed laser cleaning of easily oxidized parts comprises a laser generator (3), wherein the laser generator (3) is in optical path connection with a cleaning device (25), and is characterized by further comprising a shell, a ventilation device (5) and a gas collection device (12), wherein the ventilation device (5) is used for conveying protective gas into the shell, and the gas collection device (12) is used for collecting waste gas in the shell; the cleaning machine is characterized in that a clamp (26) and a crawling robot (16) are arranged in the shell, the clamp (26) is used for clamping a part (15) to be cleaned, the crawling robot (16) is located on the inner wall surface of the closed shell, a telescopic rod (17) is installed on the crawling robot (16), the telescopic rod (17) is fixedly connected with a connecting block (19) through a connecting plate (18), a first motor (23) and a second motor (20) are fixedly installed on two sides of the connecting block (19) respectively, the first motor (23) is connected with cleaning equipment (25) through a first motor shaft (24), and the second motor (20) is connected with a distance measuring sensor (22) through a second motor shaft (21); the shell comprises a lower hemispherical shell (6) and an upper hemispherical shell (7), a second mounting hole (27) and a second sealing groove (13) are formed in the end face of the lower hemispherical shell (6), and a first mounting hole (28) and a first sealing groove (29) are formed in the end face of the upper hemispherical shell (7); a transmission hole (8), an air inlet hole (9) and an air outlet hole (11) are formed in the shell wall of the lower hemispherical shell (6), a hydraulic cylinder (4) transmits hydraulic oil to the telescopic rod (17) through the transmission hole (8), the laser generator (3) transmits laser to the cleaning equipment (25) through the transmission hole (8), the ventilation equipment (5) transmits protective gas to the inside of the shell through the air inlet hole (9), and the air collection equipment (12) collects waste gas in the shell through the air outlet hole (11); the laser generator (3), the hydraulic cylinder (4), the ventilation device (5), the gas collection device (12), the crawling robot (16), the first motor (23), the second motor (20) and the ranging sensor (22) are all connected with a computer (1) through a controller (2).

2. The apparatus for sealed laser cleaning of oxidizable components according to claim 1, characterized in that said lower hemispherical shell (6) is fixed to a base (10).