Nut stud threaded surface cleaning equipment integrating electromagnetic locking and laser cleaning

Abstract

The invention belongs to the technical field of internal thread cleaning of ship lift engineering application background, and particularly relates to nut stud threaded surface cleaning equipment integrating electromagnetic locking and laser cleaning, which comprises a working platform, the working platform is arranged below a ship lift safety mechanism supporting rod, and the ship lift safety mechanism supporting rod is arranged in a nut stud; a tool positioning device and a laser system are arranged above the working platform, the laser system is connected with a laser cleaning tool, and tool electromagnetic locking devices are arranged on the two sides of the laser cleaning tool; the laser cleaning tool is connected with a balance suspension device arranged above a ship lift safety mechanism supporting rod. According to the equipment, through the synergistic effect of all the devices, efficient, safe and controllable cleaning of the internal thread face of the large nut column of the ship lift in a narrow space and a specific environment can be achieved, the labor intensity of workers is reduced, the standardization and efficiency of laser cleaning and the cleanliness and use safety of the cleaned surface are improved, and the production cost is reduced. And the locking safety and the operation safety of the ship lift are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of internal thread cleaning in the application background of ship lift engineering, and particularly relates to a cleaning device for the threaded surface of a nut column integrating electromagnetic locking and laser cleaning. Background Art

[0002] As one of the key components of the ship lift safety assurance system, the nut column plays a crucial role during the operation of the ship chamber. The internal thread of the nut column is used to transfer accident loads to the tower column in the case of overloading of the ship chamber, and jointly acts with the docking locking mechanism to lock the ship chamber in the docking state. However, during the operation of the ship lift, greases such as lubricating grease, hydraulic oil, and gear oil on mechanical equipment inevitably splash onto the nut column and the locking block due to leakage or waste oil overflow. The attachment of oil on the threaded surface will reduce its friction coefficient, resulting in a decrease in the self-locking reliability of the "long nut and short screw rod", which will directly affect the docking safety assurance function of the ship lift.

[0003] In the existing maintenance process, the method for removing oil stains on the surface of the nut column mainly combines manual machinery and hand-held laser cleaning. However, due to the narrow internal space of the nut column, the operation range is greatly restricted. Workers manually cleaning the oil stains on the hanging basket not only have low efficiency but also pose great safety risks. In addition, the non-standardization of manual operations also makes it difficult to achieve standardized management in the production process, further affecting the cleaning quality and efficiency. Especially, other transmission mechanisms of the ship chamber are arranged inside the nut column, which makes the operating space for cleaning operations even more limited. During the hand-held laser cleaning process, there is often no safe standing position for personnel, and it is also difficult to position and clamp when using a laser cleaning tooling to assist cleaning. Due to the relatively large pitch of the nut itself, within the operable range of the human body, workers can at most clean the side surfaces of 3 to 4 threads at a time. After cleaning the side surface of one thread each time, it is necessary to move the positioning platform and the laser cleaning tooling up and down to clean another thread, and the operation process is very cumbersome and inconvenient, seriously restricting the improvement of laser cleaning efficiency. Summary of the Invention

[0004] Aiming at the above deficiencies of the prior art, the invention provides a cleaning device for the threaded surface of a nut column integrating electromagnetic locking and laser cleaning, which solves the problems of low cleaning quality of the existing hand-held laser cleaning device and inconvenient operation of the laser cleaning tooling.

[0005] To achieve the above object, the technical solution adopted by the invention is as follows:

[0006] Provided is a nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning, comprising a working platform, which is arranged below the support rod of the ship lift safety mechanism, and the support rod of the ship lift safety mechanism is arranged inside the nut column; a tool positioning device and a laser system are arranged above the working platform, the laser system is connected to the laser cleaning tool, and tool electromagnetic locking devices are arranged on both sides of the laser cleaning tool; the laser cleaning tool is connected to a balance suspension device, and the balance suspension device is arranged above the support rod of the ship lift safety mechanism.

[0007] The beneficial effects of adopting the above technical solution are as follows: the support rod of the ship lift safety mechanism serves as a structural member of the cabin, and rises and falls with the cabin together with the working platform, and can provide support for the balancing suspension device and the laser cleaning tooling, so that the cleaning equipment can operate at different heights to meet the cleaning needs of nut studs in different positions. The working platform provides space for operators to stand and walk, so that operators can conveniently operate and adjust positions during the cleaning process, thereby improving the flexibility and safety of the cleaning operation. The balancing suspension device arranged above the support rod of the ship lift safety mechanism can make the laser cleaning tooling hover, thereby greatly improving the flexibility and convenience of the cleaning operation. When the laser cleaning tooling hovers at a suitable position, the tooling positioning device is used to adjust the laser cleaning tooling. The tooling positioning device breaks the traditional three-axis coordinate slide positioning thinking mode and adopts the flexible positioning principle to realize the precise positioning of the laser cleaning tooling, which not only improves the accuracy and efficiency of cleaning, but also enables the laser cleaning tooling to quickly switch between different screw threads, adapting to the needs of multi-position cleaning of large nut columns. Then, the tooling electromagnetic locking device fixes the laser cleaning tooling on the nut column through the action of the electromagnet. The locking method of electromagnet adsorption greatly improves the stability, and can be quickly unlocked and repositioned, which improves the efficiency and safety of the cleaning operation. Finally, the high-energy-density swing scanning spot generated by the laser system is used to efficiently clean the thread surface, thereby improving the cleaning quality and reliability.

[0008] The equipment achieves efficient, safe and controllable laser cleaning operations on the internal thread surfaces of large nuts in a narrow space through the coordinated use of the working platform, laser system, laser cleaning tooling, balancing suspension device, tooling positioning device and tooling electromagnetic locking device. It effectively improves the standardization and production efficiency of laser cleaning, reduces the labor intensity of workers, and significantly improves the cleanliness and safety of the cleaned surface.

[0009] Furthermore, the working platform includes a frame and an arc frame arranged in the middle of the frame, a patterned plate is arranged above the frame, guardrails are arranged on both sides of the frame, and the guardrails are movably connected to the frame; the arc frame is connected to the support rod of the ship lift safety mechanism.

[0010] The beneficial effects of adopting the above technical solution are as follows: The framework is the support structure of the working platform, ensuring the stability and safety of the working platform. The arc frame arranged in the middle of the framework further enhances the stability and adaptability of the working platform. The checkered plate arranged above the framework serves as the working support plate for the operator, allowing the operator to stand and construct. The guardrail provides safety protection for the operator, ensuring the standing safety of the operator. The movably connected guardrail is convenient to open or close according to needs to adapt to different operation requirements.

[0011] Furthermore, the tooling positioning device includes symmetrically arranged support frames. A positioning plate is arranged on the support frame, and positioning pin holes are arranged on the positioning plate. The support frame is arranged on the checkered plate.

[0012] The beneficial effects of adopting the above technical solution are as follows: Arranging the support frame on the checkered plate of the working platform ensures the firm connection between the tooling positioning device and the working platform, enabling the tooling positioning device to lift and lower together with the working platform to adapt to the cleaning requirements of nut columns at different heights, thereby improving the flexibility of the cleaning equipment. The positioning pin holes arranged on the positioning plate can be accurately matched with the positioning pins on the laser cleaning tooling, ensuring the accuracy of the laser cleaning tooling during the positioning process, facilitating the reduction of positioning errors, and thus improving the quality and efficiency of laser cleaning. At the same time, the positioning plate has adjustability for up and down adjustment, capable of adapting to nut columns with different pitches, thereby improving the versatility and flexibility of the equipment.

[0013] Furthermore, the laser system includes a laser cleaning head. The laser cleaning head is connected to a laser generator. The laser generator is arranged inside a laser control box, and the laser control box is arranged on the checkered plate.

[0014] The beneficial effects of adopting the above technical solution are as follows: The laser cleaning head can form a swinging scanning light spot with high energy density, ensuring that the laser beam can accurately irradiate the inner thread surface of the large nut to be cleaned, thereby improving the cleaning effect and efficiency.

[0015] Furthermore, the laser cleaning tooling includes a laser head clamping module. The laser head clamping module is arranged on a sliding guide frame. The sliding guide frame is arranged on the laser cleaning tooling frame. The sliding guide frame is connected to the laser cleaning head; the laser cleaning tooling frame is connected to a balance suspension device; baffles are arranged on both sides of the laser cleaning tooling frame, and positioning pins are arranged on the baffles.

[0016] The beneficial effects of adopting the above technical solutions are as follows: The laser head clamping module is used to stably clamp the laser cleaning head, ensuring the stability and accuracy of the laser cleaning head during the cleaning process. At the same time, it is conducive to replacing and adjusting the laser cleaning head to meet different cleaning requirements, improving the flexibility of the cleaning equipment. The sliding guide frame can provide a guiding function for the laser head clamping module and the laser cleaning head. During the cleaning process, the operator can push and pull the laser head clamping module to move on the sliding guide frame, driving the laser cleaning head to move together, so that it cleans along the trajectory of a spiral line, thereby realizing the scanning coverage cleaning of the laser spot on the side of the screw thread, greatly improving the cleaning efficiency and effect. Moreover, the sliding guide frame is conducive to the operator's pushing and pulling operation, reducing the operation difficulty and labor intensity. The baffles arranged on both sides of the laser cleaning tooling rack are used to cooperate with the positioning plates on the tooling positioning device to achieve the precise positioning of the laser cleaning tooling, and the positioning pins are used in cooperation with the positioning holes on the positioning plates to achieve the precise positioning of the laser cleaning tooling, which can avoid shaking or deviation during the cleaning process and affect the cleaning quality.

[0017] Further, the balance suspension device includes an arc plate. The arc plate is arranged at the upper end of the support rod of the ship lift safety mechanism. A rotating pin is arranged on one side of the arc plate, and the rotating pin is connected to the boom. A balancer is arranged below the boom, and a steel wire rope is arranged below the balancer. The steel wire rope is connected to the laser cleaning tooling rack.

[0018] The beneficial effects of adopting the above technical solutions are as follows: The balance suspension device adopts a sheet metal frame structure. The balance suspension device as a whole can be fixed to the upper end of the support rod of the ship lift safety mechanism through the arc plate. The rotating pin can make the boom rotate, thereby adjusting the cleaning angle. The boom plays a role in fixing the balancer, and the balancer can avoid the shaking or deviation of the laser cleaning tooling, thereby ensuring the stability and accuracy of the laser cleaning tooling.

[0019] Further, the tooling electromagnetic locking device includes a first bracket, a second bracket and a third bracket. The first bracket, the second bracket and the third bracket are arranged on both sides of the laser cleaning tooling rack. The first bracket and the third bracket are arranged on the same side. A first electromagnet is arranged at the front end of the first bracket, and a second electromagnet is arranged at the front end of the third bracket; a third electromagnet is arranged at the front end of the second bracket.

[0020] The beneficial effects of adopting the above technical solutions are as follows: The first bracket, the second bracket, and the third bracket serve as the support structure of the electromagnet, ensuring that the electromagnet can be stably arranged on both sides of the laser cleaning machine frame. Additionally, through the first bracket, the second bracket, and the third bracket, the electromagnets can be evenly distributed around the laser cleaning tooling. The first electromagnet, the second electromagnet, and the third electromagnet generate magnetic force when powered on, which can adsorb the laser cleaning tooling on the nut column. Moreover, the first electromagnet, the second electromagnet, and the third electromagnet are respectively arranged on both sides of the laser cleaning machine frame. When they are powered on, they can simultaneously adsorb on the surface of the nut column to achieve locking, with strong stability and safety. This further improves the cleaning efficiency and quality, and effectively reduces the labor intensity and risk of the operator.

[0021] In summary, the beneficial effects of the nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning provided by the present invention are as follows:

[0022] (1) Through the collaborative use of the working platform, the laser system, the laser cleaning tooling, the balance suspension device, the tooling positioning device, and the tooling electromagnetic locking device, this device realizes efficient, safe, and controllable laser cleaning operations on the internal thread surface of the large nut column of the ship lift in a narrow space and a specific environment. It effectively improves the standardization and production efficiency of laser cleaning, ensures the locking safety of the ship lift, reduces the labor intensity of workers, significantly improves the cleanliness and use safety of the cleaning surface, and further enhances the operation safety of the ship lift.

[0023] (2) The tooling positioning device in this device breaks the traditional three-axis coordinate slide table positioning thinking mode and adopts the flexible positioning principle. By using the positioning holes on the positioning plate and the special surface geometric features of the nut column, the laser cleaning tooling can be quickly positioned. Multiple groups of positioning pin holes with the same pitch as the thread are set on the positioning plate, realizing the precise positioning of the laser cleaning tooling. This not only improves the accuracy and efficiency of cleaning but also enables the laser cleaning tooling to quickly switch between different threads, meeting the requirements of multi-site cleaning of large nut columns.

[0024] (3) The laser system in this device can generate a swinging and scanning light spot with high energy density to efficiently clean the surface of the workpiece, ensuring the cleaning effect and efficiency. At the same time, it can quickly locate the laser focus while the tooling is being positioned, accurately specify the laser scanning range, and ensure that the laser light spot completely scans the specified thread working surface, guaranteeing the cleaning effect and efficiency.

[0025] (4) The laser cleaning tooling in this device is used to clamp the laser cleaning head and make it move along a spiral trajectory during the cleaning process, greatly improving the flexibility of cleaning and ensuring the comprehensiveness and uniformity during cleaning.

[0026] (5) The balance suspension device in this equipment enables the laser cleaning tooling to hover at any position within the operable space of human power, reducing the working intensity of the operator. At the same time, the laser cleaning tooling can move back and forth between multiple screw threads, improving the flexibility and convenience of the cleaning operation.

[0027] (6) The tooling electromagnetic locking device in this equipment fixes the laser cleaning tooling on the nut column through the adsorption of the electromagnet, not only improving the stability but also enabling quick unlocking and repositioning, enhancing the efficiency and safety of the cleaning operation. Description of the Drawings

[0028] Figure 1 is a structural schematic diagram of the present invention;

[0029] Figure 2 is an installation schematic diagram among the balance suspension device, the laser head laser cleaning tooling, the tooling positioning device and the electromagnetic locking device in the present invention;

[0030] Figure 3 is a top view of the present invention;

[0031] Figure 4 is a structural schematic diagram of the tooling positioning device in the present invention;

[0032] Figure 5 is a structural schematic of the working platform in the present invention Figure 1 ;

[0033] Figure 6 is a structural schematic of the working platform in the present invention Figure 2 ;

[0034] Among them, 10, working platform; 101, frame; 102, arc frame; 103, checker plate; 104, protective rod; 20, laser system; 201, laser generator; 202, laser control box; 203, laser cleaning head; 30, tooling positioning device; 301, support frame; 302, positioning plate; 303, baffle; 304, positioning pin; 40, laser cleaning tooling; 401, laser head clamping module; 402, sliding guide frame; 403, laser cleaning tooling frame; 50, balance suspension device; 501, arc plate; 502, rotating pin; 503, boom; 504, balancer; 505, steel wire rope; 60, tooling electromagnetic locking device; 601, first bracket; 602, second bracket; 603, first electromagnet; 604, second electromagnet; 605, third electromagnet; 70, nut column; 80, safety mechanism support rod of the ship lift. Detailed Embodiments

[0035] The specific implementation modes of the present invention are described below so that those skilled in the art can understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific implementation modes. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present invention as defined and determined by the attached claims, these changes are obvious, and all inventions and creations utilizing the concept of the present invention are protected.

[0036] like Figures 1 to 6 As shown, the nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning provided by the present invention includes a working platform 10, which is arranged below the support rod 80 of the ship lift safety mechanism, and the support rod 80 of the ship lift safety mechanism is arranged inside the nut column 70; a tool positioning device 30 and a laser system 20 are arranged above the working platform 10, the laser system 20 is connected to the laser cleaning tool 40, and tool electromagnetic locking devices 60 are arranged on both sides of the laser cleaning tool 40; the laser cleaning tool 40 is connected to the balance suspension device 50, and the balance suspension device 50 is arranged above the support rod 80 of the ship lift safety mechanism. When in use, the laser cleaning equipment can realize efficient, safe and controllable laser cleaning operations on the inner threaded surfaces of large nut columns 70 in a narrow space. The support rod 80 of the ship lift safety mechanism serves as a structural member of the cabin, and is lifted and lowered along with the cabin together with the working platform 10, and can provide support for the balancing suspension device 50 and the laser cleaning tool 40, so that the cleaning equipment can operate at different heights to meet the cleaning needs of nut columns 70 in different positions. The working platform 10 provides space for the operator to stand and walk, so that the operator can conveniently operate and adjust the position during the cleaning process, thereby improving the flexibility and safety of the cleaning operation. The balancing suspension device 50 arranged above the support rod 80 of the ship lift safety mechanism can make the laser cleaning tool 40 hover, thereby greatly improving the flexibility and convenience of the cleaning operation. When the laser cleaning tool 40 hovers at a suitable position, The tooling positioning device 30 is used to adjust the position of the laser cleaning tooling 40 so that it is aligned with the screw thread that needs to be cleaned. The tooling positioning device 30 breaks the traditional three-axis coordinate slide positioning thinking mode and adopts the flexible positioning principle to realize the precise positioning of the laser cleaning tooling 40, which not only improves the accuracy and efficiency of cleaning, but also enables the laser cleaning tooling 40 to quickly switch between different screw threads, adapting to the cleaning needs of multiple parts of the large nut column 70. Then, the tooling electromagnetic locking device 60 fixes the laser cleaning tooling 40 on the nut column 70 through the action of the electromagnet. The locking method using the electromagnet adsorption greatly improves the stability, and can be quickly unlocked and repositioned, thereby improving the efficiency and safety of the cleaning operation. Finally, the high-energy-density swing scanning spot generated by the laser system 20 is used to efficiently clean the threaded surface, thereby improving the cleaning quality and reliability.

[0037] like Figure 5and Figure 6 As shown in Figure 6 , the working platform 10 includes a frame 101 and an arc frame 102 disposed in the middle of the frame 101. There are two frames 101 and arc frames 102, and they are symmetrically arranged. A checker plate 103 is disposed above the frame 101, and guardrails 104 are disposed on both sides of the frame 101. The guardrails 104 are movably connected to the frame 101. The frame 101, the arc frame 102, and the checker plate 103 are fixedly connected by screws. The frame 101 is the support structure of the working platform 10, ensuring the stability and safety of the working platform 10. The arc frame 102 disposed in the middle of the frame 101 further enhances the stability and adaptability of the working platform 10. The checker plate 103 disposed above the frame 101 serves as the working support plate for the operator, and the guardrails 104 provide safety protection for the operator, ensuring the standing safety of the operator. The movably connected guardrails 104 are convenient to open or close according to needs to adapt to different operation requirements.

[0038] As Figure 1 and Figure 2 As shown in Figure 1 and Figure 2 , the balance suspension device 50 includes an arc plate 501. The arc plate 501 is disposed at the upper end of the support rod 80 of the ship lift safety mechanism. A rotating pin 502 is disposed on one side of the arc plate 501. The rotating pin 502 is connected to the boom 503. A balancer 504 is disposed below the boom 503. A steel wire rope 505 is disposed below the balancer 504. The steel wire rope 505 is connected to the laser cleaning tooling frame 403. The balance suspension device 50 adopts a sheet metal frame structure. The balance suspension device 50 can be integrally fixed to the upper end of the support rod 80 of the ship lift safety mechanism through the arc plate 501. The rotating pin 502 enables the boom 503 to rotate, thereby adjusting the cleaning angle. The boom 503 fixes the balancer 504, and the pulling force specification of the balancer 504 is 15 - 23 kg. Under the pulling force of the balancer 504, the laser cleaning tooling 40 can hover at a specified position, and the balancer 504 can prevent the laser cleaning tooling 40 from shaking or deviating, thereby ensuring the stability and accuracy of the laser cleaning tooling 40.

[0039] As Figure 2 and Figure 3As shown in the figure, the laser cleaning tooling 40 includes a laser head clamping module 401. The laser head clamping module 401 is arranged on a sliding guide frame 402. The sliding guide frame 402 is arranged on a laser cleaning tooling frame 403. The sliding guide frame 402 is connected to a laser cleaning head 203. The laser cleaning tooling frame 403 is connected to a balance suspension device 50. On both sides of the lower end of the laser cleaning tooling frame 403, there are baffles 303, and positioning pins 304 are arranged on the baffles 303. The laser head clamping module 401 is used to stably clamp the laser cleaning head 203, ensuring the stability and accuracy of the laser cleaning head 203 during the cleaning process. At the same time, it is conducive to replacing and adjusting the laser cleaning head 203 to adapt to different cleaning requirements, improving the flexibility of the cleaning equipment. The sliding guide frame 402 can provide a guiding function for the laser head clamping module 401 and the laser cleaning head 203. During the cleaning process, the operator can push and pull the laser head clamping module 401 to move on the sliding guide frame 402, and at the same time drive the laser cleaning head 203 to move together, so that it cleans along the trajectory of a spiral line, thereby realizing the scanning coverage cleaning of the laser spot on the side surface of the screw thread, greatly improving the cleaning efficiency and effect. Moreover, the sliding guide frame 402 is conducive to the operator's pushing and pulling operation, reducing the operation difficulty and labor intensity. The baffles 303 arranged on both sides of the laser cleaning tooling frame 403 are used to cooperate with the positioning plate 302 on the tooling positioning device 30 to realize the precise positioning of the laser cleaning tooling 40. The positioning pins 304 are used in cooperation with the positioning holes on the positioning plate 302 to realize the precise positioning of the laser cleaning tooling 40, and can avoid shaking or offset during the cleaning process, which affects the cleaning quality.

[0040] As Figure 4 shown, the tooling positioning device 30 includes two symmetrically arranged support frames 301 on the left and right. A positioning plate 302 is arranged on the support frames 301. Positioning pin holes 304 are arranged on the positioning plate 302. Both the positioning plate 302 and the support frames 301 are arranged on the checker plate 103. The support frames 301 can be lifted up and down along with the working platform 10. The positioning plate 302 is arranged vertically on the support frames 301. The positioning plate 302 can be adjusted up and down along the support frames 301, and the adjustment stroke is maintained at ±100 mm, which is used to make up for the position difference between the first lift of the ship's cabin and the working platform 10 and the actual required position, ensuring that the laser cleaning tooling 40 obtains accurate positioning, and further improving the flexibility of the cleaning equipment. The distance between the positioning pin holes 304 arranged on the positioning plate 302 is the same as the pitch of the screw thread of the nut column 70. The positioning pin holes 304 can be precisely matched with the positioning pins 304 on the laser cleaning tooling 40, ensuring the accuracy of the laser cleaning tooling 40 during the positioning process, which is beneficial to reducing the positioning error, and further improving the quality and efficiency of laser cleaning.

[0041] As Figure 2As shown, the tooling electromagnetic locking device 60 includes a first bracket 601, a second bracket 602 and a third bracket. The first bracket 601, the second bracket 602 and the third bracket are arranged on both sides of the laser cleaning machine frame 403. The first bracket 601 and the third bracket are arranged on the same side. A first electromagnet 603 is provided at the front end of the first bracket 601, and a second electromagnet 604 is provided at the front end of the third bracket; a third electromagnet 605 is provided at the front end of the second bracket 602; the first bracket 601, the second bracket 602 and the third bracket serve as the support structure of the electromagnet, ensuring that the electromagnet can be stably arranged on both sides of the laser cleaning machine frame 403. The first electromagnet 603, the second electromagnet 604 and the third electromagnet 605 can generate magnetic force when energized, and can adsorb the laser cleaning tooling 40 on the nut column 70. The same-side arrangement of the first electromagnet 603 and the second electromagnet 604 can ensure uniform force on the tooling, avoiding deformation or damage caused by uneven force. At the same time, it can effectively prevent falling off due to accidental collision, protecting the safety of the equipment and operators; the third electromagnet 605 is arranged at the front end of the second bracket 602, forming a triangular locking structure with the first electromagnet 603 and the second electromagnet 604, further improving the reliability of the tooling electromagnetic locking device 60. Through the coordinated use of the first electromagnet 603, the second electromagnet 604 and the third electromagnet 605, the stability and safety during locking are ensured, thereby improving the cleaning efficiency and quality, and effectively reducing the labor intensity and risk of operators.

[0042] As Figure 1 and Figure 3 shown, the laser system 20 includes a laser cleaning head 203. The laser cleaning head 203 is connected to a laser generator 201. The laser generator 201 is arranged inside a laser control box 202, and the laser control box 202 is arranged on the checker plate 103; the laser control box 202 provides a safe and stable operating environment for the laser generator 201, and can effectively prevent damage to the laser generator caused by external factors such as dust and moisture. The laser generator 201 is responsible for generating a high-energy laser beam. The laser beam is transmitted to the laser cleaning head 203 through an optical fiber or other transmission medium. The laser cleaning head 203 shapes and focuses the laser, and can form a swinging scanning light spot with a high energy density. When the light spot irradiates the surface of the workpiece, a significant laser cleaning effect can be obtained. During use, the laser cleaning head 203 can move along with the laser cleaning tooling and move out a spiral trajectory along the customized guide rail, ensuring that the light spot can scan and cover the side surface of the thread to be cleaned, so as to achieve comprehensive cleaning.

[0043] The working process of the nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning of the present invention is as follows: First, assemble the two arc frames 102 and the two frames 101 of the working platform 10, lay the checkered plate 103 and install the safety railing 104. Then, fixedly install the two arc plates 501 of the balance suspension device 50 at the uppermost end of the support rod 80 of the ship lift safety mechanism (about 2200 mm above the working platform 10), install the boom 503, the balancer 504 and the steel wire rope 505, ensure that they are firmly and reliably connected. By adjusting the tension of the balancer 504, the laser cleaning tooling 40 can be kept in balance and hover at any position within the manually operable space. Then, fix the laser cleaning head 203 on the laser head clamping module 401 and lock it with the quick-locking pressing plate screw to ensure that the laser cleaning head 203 will not loosen during the cleaning process. Next, fixedly install the tooling positioning device 30 on the working platform 10, including two left and right support frames 301 and the adjustable positioning plate 302, and arrange the positioning plate 302 vertically on the support frame 301, and adjust the position of the positioning plate 302 so that the positioning pin holes on it match the thread pitch of the nut column 70. Finally, arrange the tooling electromagnetic locking device 60 on both sides of the laser cleaning tooling frame 403 and fixedly connect them, ensuring that the three groups of electromagnets are respectively installed at the front end parts of the three groups of brackets, so as to firmly adsorb on the surface of the nut column 70 during the cleaning process. When in use, connect the laser cleaning tooling 40 with the balancer 504 through the steel wire rope 505, and adjust the tension of the balancer 504 to keep the laser cleaning tooling 40 in balance. Then, move the laser cleaning tooling 40 to near the specified thread, observe the position of the pin holes on the positioning plate 302, insert the positioning pins 304 on both sides of the laser cleaning tooling 40 into the positioning pin holes. At the same time, fix the baffle 303 and the end faces of the three groups of electromagnets on the front of the nut column 70 to accurately position the laser cleaning tooling 40. Then, step on the foot switch arranged on the checkered plate 103 to energize and start the three groups of electromagnets, adsorb and fix the laser cleaning tooling 40 on the surface of the nut column 70 to ensure that the tooling will not shake or shift during the cleaning process. Then, press the handle button on the laser head clamping module 401 to start the laser. At the same time, manually push and pull the laser head clamping module 401 to drive the laser cleaning head 203 to move together, moving out the trajectory of a helix, scanning and covering the side of the thread to be cleaned. At this time, the laser spot irradiates on the surface of the workpiece, forming a swinging scanning spot with a high energy density, so as to obtain the laser cleaning effect. After completing the cleaning of one side of the thread, hold the handle of the cleaning tooling 40, step on the foot switch again, cut off the power and release the three groups of electromagnets, move the cleaning tooling 40 to near another thread, and start the next laser cleaning process.

[0044] In summary, the nut column thread surface cleaning equipment integrating electromagnetic locking and laser cleaning provided by the present invention realizes efficient, safe and controllable laser cleaning operation on the internal thread surface of the large nut column of the ship lift in a narrow space and a specific environment through the coordinated use of the working platform 10, the laser system 20, the laser cleaning tooling 40, the balance suspension device 50, the tooling positioning device 30 and the tooling electromagnetic locking device 60. It effectively improves the standardization and production efficiency of laser cleaning, ensures the locking safety of the ship lift, reduces the labor intensity of workers, significantly improves the cleanliness and use safety of the cleaning surface, and further enhances the operation safety of the ship lift.

Claims

1. A nut thread surface cleaning device integrating electromagnetic locking and laser cleaning, characterized in that: The invention comprises a working platform (10), wherein the working platform (10) is arranged below a support rod (80) of a ship lift safety mechanism, and the support rod (80) of the ship lift safety mechanism is arranged inside a nut column (70); a tool positioning device (30) and a laser system (20) are arranged above the working platform (10), and the laser system (20) is connected to a laser cleaning tool (40), and tool electromagnetic locking devices (60) are arranged on both sides of the laser cleaning tool (40); the laser cleaning tool (40) is connected to a balance suspension device (50), and the balance suspension device (50) is arranged above the support rod (80) of the ship lift safety mechanism.

2. The nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning according to claim 1 is characterized in that: The working platform (10) comprises a frame (101) and an arc frame (102) arranged in the middle of the frame (101); a patterned plate (103) is arranged above the frame (101); guardrails (104) are arranged on both sides of the frame (101); the guardrails (104) are movably connected to the frame (101); and the arc frame (102) is connected to a support rod (80) of a ship lift safety mechanism.

3. The nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning according to claim 1 is characterized in that: The tool positioning device (30) comprises a symmetrically arranged support frame (301), a positioning plate (302) is arranged on the support frame (301), a positioning pin hole is arranged on the positioning plate (302), and the support frame (301) is arranged on the patterned plate (103).

4. The nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning according to claim 1 is characterized in that: The laser system (20) comprises a laser cleaning head (203), wherein the laser cleaning head (203) is connected to a laser generator (201), wherein the laser generator (201) is arranged inside a laser control box (202), and wherein the laser control box (202) is arranged on the patterned plate (103).

5. The nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning according to claim 1, characterized in that: The laser cleaning tool (40) comprises a laser head clamping module (401), wherein the laser head clamping module (401) is arranged on a sliding guide frame (402), wherein the sliding guide frame (402) is arranged on a laser cleaning tool frame (403), wherein the sliding guide frame (402) is connected to the laser cleaning head (203); the laser cleaning tool frame (403) is connected to a balancing suspension device (50); baffles (303) are arranged on both sides of the laser cleaning tool frame (403), and positioning pins (304) are arranged on the baffles (303).

6. The nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning according to claim 1, characterized in that: The balance suspension device (50) comprises an arc plate (501), the arc plate (501) is arranged at the upper end of the support rod (80) of the ship lift safety mechanism, a rotating pin (502) is arranged on one side of the arc plate (501), the rotating pin (502) is connected to the boom (503), a balancer (504) is arranged below the boom (503), a steel wire rope (505) is arranged below the balancer (504), and the steel wire rope (505) is connected to the laser cleaning tooling frame (403).

7. The nut column thread surface cleaning device integrating electromagnetic locking and laser cleaning according to claim 1, characterized in that: The tooling electromagnetic locking device (60) comprises a first bracket (601), a second bracket (602) and a third bracket. The first bracket (601), the second bracket (602) and the third bracket are arranged on both sides of a laser cleaning tooling frame (403). The first bracket (601) and the third bracket are arranged on the same side. The front end of the first bracket (601) is provided with a first electromagnet (603), and the front end of the third bracket is provided with a second electromagnet (604); the front end of the second bracket (602) is provided with a third electromagnet (605).

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