A high-horsepower engine regeneration cylinder cleaning process and cleaning line

Abstract

The present invention relates to a high-horsepower engine regeneration cylinder cleaning process and cleaning line, which belongs to the field of engine cleaning technology. The process includes ultrasonic cleaning, deburring, fixed-point cleaning, detection, laser cleaning, secondary cleaning, drying and offline detection steps; the cleaning line includes a loading receiving device, a composite cleaning mechanism, a first water storage system, a fixed-point cleaning mechanism, a second water storage system, a detection area, a laser cleaning area, a hot air drying mechanism, a loading receiving device, and a plurality of conveying rollers, rotating rollers and translation rollers connected to the above systems, so that they are connected to each other to form a whole, and the cylinder can be transferred in various functional areas to complete the operation of each step. The present invention can clean the scrapped high-horsepower engine cylinder to achieve regeneration, avoid direct scrapping, reduce the consumption of raw materials, and significantly reduce the equipment update cost of mining enterprises.

Description

Technical Field

[0001] The invention relates to an engine cleaning technology, in particular to a high-horsepower engine regeneration cylinder cleaning process and a cleaning line. Background Art

[0002] High-horsepower engines are used in specialized machinery and equipment in mining, trunk logistics, ship propulsion, oil and gas extraction, and other fields, such as diesel engines in mining trucks and heavy-duty tractors. These engines are characterized by high prices, large size, and complex structures. Therefore, remanufacturing these scrapped high-horsepower diesel engines has significant market value.

[0003] Regeneration cleaning of high-horsepower diesel engines can be divided into large-part cleaning and small-part cleaning according to the size of their components. The cylinder block is the largest component, weighing approximately 2,000 kg and measuring approximately 2,055 mm × 940 mm × 725 mm. It is more difficult to clean and transport than smaller components. First, the cylinder block has a complex structure, with multi-dimensional intersecting waterways, oil channels, and irregularly shaped chambers. Traditional high-pressure water cleaning or chemical cleaning methods cannot completely remove carbon deposits, oil stains, metal debris, and other attachments. This is especially true in hidden areas such as deep blind holes, which are prone to forming cleaning blind spots, resulting in insufficient cleaning efficiency and cleanliness. Second, the large size and heavy weight of high-horsepower engine cylinder blocks make it difficult for traditional cleaning equipment to achieve full-circle automated cleaning. Manual intervention is not only inefficient but also suffers from poor cleaning quality consistency. Third, long-term use not only generates a large amount of oil stains and carbon deposits that are difficult to clean, but also causes various degrees of complex deformation, making cleaning more difficult. These problems make it difficult for existing high-horsepower engine cylinder cleaning and regeneration technologies to meet the needs of industrial applications in terms of cleaning accuracy and degree of automation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a cleaning process and a cleaning line suitable for the regeneration cylinder of a high-horsepower engine, which can realize the cleaning and regeneration of the cylinder of a high-horsepower engine.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is:

[0006] A high-horsepower engine regeneration cylinder cleaning process includes the following steps:

[0007] S1. Immerse the cylinder body in an ultrasonic cleaning tank filled with cleaning fluid to perform ultrasonic cleaning to remove stains attached to the cylinder body;

[0008] S2. Deburring the oil passage holes of the cylinder body to remove the burrs on the oil passage holes;

[0009] S3. Fixed-point cleaning: Use high-pressure water to flush the holes on the cylinder body to remove stubborn stains and particles in the holes;

[0010] S4, inspection: inspect the cylinder body after the fixed-point cleaning. If qualified, proceed to the following steps. If unqualified, repeat S1 to S3;

[0011] S5. Laser cleaning: Laser clean the unclean parts of the cylinder to remove residual stains;

[0012] S6, repeat S1 to S3 for secondary cleaning;

[0013] S7, drying the cylinder body;

[0014] S8, inspection, offline, and cylinder cleaning completed.

[0015] Furthermore, in S1, the cleaning liquid temperature is 60-85°C, the ultrasonic frequency is 28-40kHz, the power density is 500-800W / m², and the cleaning time is 3-5h.

[0016] Furthermore, in S3, the water temperature is 60-85°C, the water flow pressure is 20 MPa, and the flushing time for each hole is not less than 15 seconds.

[0017] Furthermore, in said S4, the detection standard is,

[0018] Oil hole: particle size less than 1mm, cleanliness less than 45mg;

[0019] Water jacket hole: particle size less than 2.4mm, cleanliness less than 40mg;

[0020] Oil cooler: particle size less than 1mm, cleanliness less than 30mg;

[0021] Lubrication and air intake: particle size less than 3mm, cleanliness less than 15mg;

[0022] Among them, cleanliness refers to the weight of the debris obtained after injecting sufficient running water into the hole to be tested and collecting the running water at the outlet of the hole and filtering; particle size refers to the maximum length of the debris obtained.

[0023] Furthermore, the S5 includes:

[0024] S5-1, automatic laser cleaning: Use machine vision detection method to collect cylinder surface images and identify stains on the cylinder body, and perform automatic zoned laser cleaning based on the machine vision detection results;

[0025] S5-2, the cylinder body that has been automatically laser cleaned by the machine is manually supplemented with laser cleaning.

[0026] Furthermore, in S3, after flushing the holes on the cylinder body, the cylinder body is turned over and the water is poured out, so that the water containing stains flows out of the cylinder body, and at the same time, a rust prevention effect is achieved.

[0027] Furthermore, in S7, hot air is used to dry the cylinder body, the air is heated to 60-80° C. by a heater, the fan sends the hot air into the cylinder body, and the exhaust gas is reheated or discharged through the return air duct.

[0028] In addition, the present invention also provides a cleaning line for implementing the above-mentioned high-horsepower engine regeneration cylinder cleaning process, comprising:

[0029] The loading receiving device is used to receive the cylinder to be cleaned;

[0030] A composite cleaning mechanism is connected to the feeding receiving device, and includes an ultrasonic cleaning tank for ultrasonically cleaning the cylinder body; a first water storage system for supplying cleaning liquid to the ultrasonic cleaning tank; and a deburring mechanism, adjacent to the ultrasonic cleaning tank, for deburring the oil passage holes of the cylinder body, wherein the brush rod of the deburring mechanism extends into the ultrasonic cleaning tank through the side wall of the ultrasonic cleaning tank, and the brush rod is in sealing cooperation with the side wall of the ultrasonic cleaning tank;

[0031] A fixed-point cleaning mechanism, connected to the composite cleaning mechanism, is used to flush the holes on the cylinder body;

[0032] a second water storage system for supplying clean water to the fixed-point cleaning mechanism;

[0033] A detection area is used to monitor the cylinder body after the fixed-point cleaning, and the detection area is connected to the fixed-point cleaning mechanism through a conveyor roller;

[0034] The laser cleaning area is connected to the inspection area through a conveyor roller and is used to laser clean the cylinder bodies that have passed the first inspection;

[0035] The discharge end of the laser cleaning area and the composite cleaning mechanism are connected through a conveyor roller to return the laser-cleaned cylinder for secondary cleaning.

[0036] The hot air drying mechanism is installed on the conveyor roller conveyor from the fixed-point cleaning mechanism to the detection area, and is used to dry the cylinder body after the secondary cleaning;

[0037] The material unloading receiving device is connected to the detection area and is used to output the cleaned cylinder body.

[0038] Furthermore, the loading receiving device, the plurality of conveying rollers and the unloading receiving device are sequentially connected to form a "I"-shaped main conveying line running through the entire cleaning line;

[0039] The composite cleaning mechanism, the fixed-point cleaning mechanism and the detection area are arranged on the first side of the main conveyor line, the laser cleaning area is arranged on the second side of the main conveyor line, and the hot air drying mechanism is arranged on the main conveyor line;

[0040] The plurality of conveying rollers on the main conveying line include a first translation roller, a first rotation roller, a second rotation roller, a second translation roller and a third rotation roller;

[0041] When the first translation roller is located at the first end, it connects to the loading receiving device and the first rotating roller, and when it is located at the second end, it connects to the discharge end of the laser cleaning area;

[0042] The first rotating roller rotates 90 degrees and then connects to the composite cleaning mechanism;

[0043] The second rotating roller is rotated 90 degrees and then connected to the fixed-point cleaning mechanism;

[0044] When the second translation roller is located at the first end, the two ends are connected to the hot air drying mechanism and the third rotating roller respectively; when it is located at the second end, it is connected to the laser cleaning area;

[0045] The third rotating roller is connected to the detection area after rotating 90 degrees, and the blanking receiving device is connected to the third rotating roller.

[0046] Furthermore, the loading and unloading receiving devices are both cage-type turning devices, which are used to dock with the AGV transport vehicle and turn the cylinder body 180 degrees;

[0047] The cleaning line further comprises a material removal roller arranged in parallel with the main conveying line, and the material removal roller is arranged between the main conveying line and the laser cleaning area;

[0048] A third translation roller is provided in the material removal roller. When the third translation roller is located at the first end, it is connected with the first translation roller when it is located at the second end. When the third translation roller is located at the second end, it is connected with the discharge end of the laser cleaning area; when the second translation roller is located in the middle, it is connected with the starting end of the material removal roller.

[0049] The beneficial effects of adopting the above technical solution are:

[0050] The high-horsepower engine regeneration cylinder cleaning process and cleaning line provided by the present invention can clean and regenerate the cylinders of scrapped high-horsepower engines, avoiding direct scrapping and reducing the consumption of raw materials (such as steel and alloys); the cost of remanufacturing a high-horsepower diesel engine is generally 50%-70% of that of a new engine, which can significantly reduce the equipment renewal costs of mining companies; the successful case of remanufacturing high-horsepower diesel engines in mining trucks, which are heavy equipment, can promote the development of remanufacturing technology in the fields of engineering machinery, ships, aviation, etc.

[0051] Furthermore, the present invention sequentially performs deburring, spot cleaning, and laser cleaning during the cleaning process, leveraging the advantages of each cleaning method and complementing each other to improve cleaning efficiency and quality while reducing production costs. The combined cleaning process (ultrasonic and deburring) is prioritized, reducing the difficulty of subsequent cleaning and enhancing the overall cleaning effect. Burrs increase the resistance of the cleaning fluid, affecting its flow and penetration, resulting in reduced cleaning efficiency. After burrs are removed, the cleaning fluid can more smoothly contact the workpiece surface, improving the cleaning effect. Spot cleaning is precise and targets critical areas. For complex and delicate bores on the cylinder body, spot cleaning allows for flexible adjustment of cleaning parameters to ensure that every critical area is thoroughly cleaned. Finally, laser cleaning completes the process, effectively removing stubborn contaminants. The laser cleaning process eliminates the need for chemical cleaning agents, reduces wastewater and exhaust emissions, and complies with environmental requirements. Laser cleaning is also fast and efficient, making it suitable for large-scale production.

[0052] The cleaning line of the present invention organically combines composite cleaning, fixed-point cleaning, inspection, laser cleaning, and drying devices to form a complete production line, capable of efficiently implementing the regeneration cylinder cleaning process for high-horsepower engines and achieving regeneration cleaning of high-horsepower engines. A loading receiving device, a plurality of conveyor rollers, and a unloading receiving device are sequentially connected to form a "I"-shaped main conveyor line that runs through the entire cleaning line. The composite cleaning mechanism, fixed-point cleaning mechanism, inspection area, laser cleaning area, and material removal rollers are located on both sides of the main conveyor line, making the layout of the entire cleaning line reasonable and the functional areas closely connected. The use of translational rollers and rotating rollers enables smooth connection between the various functional areas, efficient and convenient cylinder transfer, and is conducive to achieving efficient and large-scale production. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a process flow chart of the present invention.

[0054] Figure 2 It is a schematic diagram of the overall structure of the cleaning line of the present invention.

[0055] Figure 3 It is a structural diagram of the composite cleaning mechanism of the present invention.

[0056] Figure 4 It is a structural schematic diagram of the fixed-point cleaning mechanism in the present invention.

[0057] Among them: 1 feeding receiving device, 2 first translation roller, 3 first rotating roller, 4 ultrasonic cleaning tank, 4-1 proximal side wall, 4-2 distal side wall, 4-3 roller in the tank, 4-4 mounting frame, 5 first water storage system, 5-1 first water tank, 5-2 second water tank, 5-3 first filtering system, 6 deburring mechanism, 6-1 brush rod, 7 second water storage system, 7-1 third water tank, 7-2 second filtering system, 8 second rotating roller, 9 fixed-point cleaning mechanism, 9-1 cleaning box, 9-2 workpiece clamping table, 9-3 robotic arm, 9-4 transverse slide, 9-5 roller drive mechanism, 9-6 rotation drive mechanism, 10 hot air drying mechanism, 11 third rotation roller, 12 inspection area, 12-1 first inspection area, 12-2 second inspection area, 13 second translation roller, 14 automatic laser cleaning system, 15 manual laser supplementary cleaning area, 16 third translation roller, 17 unloading receiving device, 18 material removal roller, 100 cylinder body. DETAILED DESCRIPTION

[0058] In order to make the objectives, technical solutions and advantages of the present invention more clear, the invention is clearly and completely described below in conjunction with specific embodiments.

[0059] Example 1

[0060] like Figure 1 As shown, a high-horsepower engine regeneration cylinder cleaning process includes the following steps:

[0061] S1. Immerse the cylinder body in an ultrasonic cleaning tank filled with cleaning fluid for ultrasonic cleaning (including a cleaning machine) to remove carbon deposits, oil stains, and other stains adhering to the cylinder body. The cleaning fluid temperature is 60-85°C, preferably 80°C; the ultrasonic frequency is 28-40kHz, the power density is 500-800W / m², and the cleaning time is 3-5 hours. During the ultrasonic cleaning process, ultrasonic cleaning can be performed by changing the water to circulate and purify the cleaning fluid in real time.

[0062] S2. Deburring the oil passage holes of the cylinder body to remove burrs from the oil passage holes; placing the cylinder body in an ultrasonic cleaning tank, and passing a brush rod of a deburring mechanism through the ultrasonic cleaning tank to deburr the main oil passage holes and the auxiliary oil passage holes of the cylinder body.

[0063] S3. Spot Cleaning: Use high-pressure water to flush the holes on the cylinder body to remove stubborn stains and particles. The water temperature is 60-85°C, preferably 80°C, and the water pressure is 20 MPa. Each hole should be rinsed for at least 15 seconds. After flushing the holes on the cylinder body, turn the cylinder body over to drain the water containing stains, which also prevents rust.

[0064] S4, Inspection: Inspect the cylinder after the fixed point cleaning. If qualified, proceed to the subsequent cleaning steps. If unqualified, repeat S1 to S3. The inspection standard is,

[0065] Oil hole: particle size less than 1mm, cleanliness less than 45mg;

[0066] Water jacket hole: particle size less than 2.4mm, cleanliness less than 40mg;

[0067] Oil cooler: particle size less than 1mm, cleanliness less than 30mg;

[0068] Lubrication and air intake: particle size less than 3mm, cleanliness less than 15mg;

[0069] Among them, cleanliness refers to the weight of the debris obtained by injecting a sufficient amount of running water (usually 1-2 times the volume of the pore) into the inspected hole, collecting the running water at the outlet of the hole, and filtering it; particle size refers to the maximum length of the obtained debris, which can be observed using a microscope.

[0070] S5. Laser cleaning: Laser clean the unclean parts of the cylinder to remove residual stains;

[0071] The S5 specifically includes the following steps:

[0072] S5-1, automated laser cleaning: A machine vision inspection method is used to capture images of the cylinder surface and identify stains on the cylinder. Images of the cylinder surface are captured using a machine vision inspection system, and stain areas and their contours are identified using an image processing algorithm. The stains include at least one of sludge, rust, and carbon deposits. Based on the contours of the identified stain areas, the surface to be cleaned is divided into multiple independent cleaning zones. The partitioning strategy includes at least one of the following: treating each identified stain area as an independent zone, merging adjacent stain areas into zones based on the spatial distribution, size, or type of the stain, or dividing the surface into a grid and defining the grid cells containing the stain as zones. For each cleaning zone, at least one of the following three scanning paths is selected and generated based on its contour shape, size, and / or stain characteristics for laser beam scanning and filling: 1) Spiral scanning path: Starting from a point within the zone, a continuous scanning path expands toward the zone boundary or contracts from the boundary toward the center in a spiral trajectory; 2) Parallel reciprocating scanning path: A scanning path consisting of a series of straight line segments arranged parallel to a fixed direction and connected at their endpoints; 3) Contour offset scanning path: Starting from the contour boundary of the identified stain area, the contour is offset inward or outward at multiple equal intervals to generate a series of nested closed loop paths until the entire zone or stain area is covered. The laser cleaning device is controlled to perform laser cleaning operations on each cleaning zone according to the above-planned scanning path. After cleaning, the cleaning effect of different scanning paths is evaluated based on the four dimensions of the workpiece surface: micromorphology, hardness, roughness, and overall deformation. Based on the above evaluation results and combined with the actual cleaning requirements (including at least one of the cleaning efficiency, cleaning quality requirements, thermal damage control requirements for the workpiece substrate, and specific stain type removal effect requirements), the most appropriate scanning path type and its parameters are selected or optimized for cleaning partitions of specific shapes, sizes or stain types.

[0073] S5-2, the cylinder body that has been automatically laser cleaned by the machine is manually supplemented with laser cleaning.

[0074] S6. After laser cleaning is completed, repeat S1 to S3 for secondary cleaning.

[0075] S7. Dry the cylinder body; wherein, hot air is used to dry the cylinder body, the air is heated to 60-80°C by a heater, the fan sends the hot air into the cylinder body, and the exhaust gas is reheated or discharged through the return air duct.

[0076] S8. Inspection: Manual visual inspection shows that there are no drops of liquid or water marks on the cylinder body, which is qualified. The cylinder body that has passed the inspection is removed from the production line and the cylinder body cleaning is completed. At this point, the cylinder body regeneration and cleaning is completed.

[0077] Example 2

[0078] like Figures 2 to 4 The cleaning line shown is used to implement the cleaning process described in Example 1, including: a loading and receiving device 1, a composite cleaning mechanism, a first water storage system 5, a fixed-point cleaning mechanism 9, a second water storage system 7, a detection area 12, a laser cleaning area, a hot air drying mechanism 10, a unloading and receiving device 17, and a plurality of conveying rollers, rotating rollers and translation rollers connecting the above systems (working areas and mechanisms) so that they are connected to each other to form a whole. The cylinder body 100 (workpiece) can be transferred in various functional areas to complete each step of the operation.

[0079] The loading receiving device 1 is used to receive the cylinder body 100 to be cleaned transferred by the AGV transport vehicle, so as to put the cylinder body 100 to be cleaned on line; the loading receiving device 1 is a turning cage conveyor roller, which can turn the cylinder body 100 180 degrees and then transport it forward.

[0080] The composite cleaning mechanism is connected to the material receiving device 1 and includes an ultrasonic cleaning tank 4, a first water storage system 5 and a deburring mechanism 6.

[0081] The ultrasonic cleaning tank 4 is used to perform ultrasonic cleaning on the cylinder body 100 to preliminarily remove most of the stains; the ultrasonic cleaning tank 4 has an ultrasonic frequency of 28-40kHz and a power density of 500-800W / m².

[0082] The first water storage system 5 is used to supply cleaning fluid to the ultrasonic cleaning tank 4. The first water storage system 5 comprises a first water tank 5-1 and a second water tank 5-2, each of which is connected to the ultrasonic cleaning tank 4. Both the first water tank 5-1 and the second water tank 5-2 are equipped with a first filtration system 5-3. While the ultrasonic cleaning tank 4 is operating, the first water tank 5-1 supplies the prepared cleaning fluid. After the front cylinder 100 completes the combined cleaning (ultrasonic cleaning and deburring), the sewage pump returns the cleaning fluid from the ultrasonic cleaning tank 4 to the first water tank 5-1, where it is filtered by the first filtration system 5-3, awaiting the next use. While the first water tank 5-1 is filtering and recovering the cleaning fluid, the second water tank 5-2 supplies the prepared cleaning fluid to the ultrasonic cleaning tank 4. This alternating supply of cleaning fluid between the first and second water tanks 5-1 and 5-2 improves the production efficiency of the cleaning line.

[0083] like Figure 2 and Figure 3As shown, the deburring mechanism 6 is used to deburr the oil channel hole of the cylinder body 100. The deburring mechanism 6 is adjacent to the ultrasonic cleaning tank 4, that is, the deburring mechanism 6 is close to the ultrasonic cleaning tank 4. The brush rod 6-1 of the deburring mechanism 6 extends into the interior of the ultrasonic cleaning tank 4 through the distal side wall 4-2 of the ultrasonic cleaning tank 4, and the brush rod 6-1 is sealed with the distal side wall 4-2 of the ultrasonic cleaning tank 4. Deburring in the ultrasonic cleaning tank 4 can enable the cleaning liquid to contact the surface of the workpiece (cylinder body 100) more smoothly, thereby improving the cleaning effect; at the same time, it can also reduce the oil stains adhering to the brush, thereby increasing the service life of the brush.

[0084] like Figure 3 As shown, the proximal side wall 4-1 of the ultrasonic cleaning tank 4 is a sealed door structure that can be opened and closed. A sealing strip is provided between the proximal side wall 4-1 and the side wall of the ultrasonic cleaning tank 4. A mounting frame 4-4 is fixedly provided on the tank body of the ultrasonic cleaning tank 4. A vertical guide mechanism is provided between the proximal side wall 4-1 and the mounting frame 4-4. The mounting frame 4-4 is provided with a drive mechanism for driving the proximal side wall 4-1 to rise and fall vertically.

[0085] The bottom of the ultrasonic cleaning tank 4 is provided with an inner roller conveyor 4-3. Before ultrasonic cleaning is performed, the proximal side wall 4-1 is opened to connect the inner roller conveyor 4-3 with the external conveying roller conveyor. After the cylinder body 100 is completely conveyed into the ultrasonic cleaning tank 4 by the inner roller conveyor 4-3, the proximal side wall 4-1 is closed to seal the tank body, and then the cleaning liquid is injected.

[0086] like Figure 2 and Figure 4 As shown, the fixed-point cleaning mechanism 9 is connected to the composite cleaning mechanism to flush the holes on the cylinder body 100. The fixed-point cleaning mechanism 9 and the composite cleaning mechanism are arranged adjacent to each other and closely connected, which can minimize the transportation distance of the cylinder body 100, thereby improving efficiency and reducing costs. The second water storage system 7 is used to supply clean water to the fixed-point cleaning mechanism 9.

[0087] The fixed-point cleaning mechanism 9 includes a cleaning box 9-1, a workpiece clamping table 9-2 arranged in the cleaning box 9-1, and the workpiece clamping table 9-2 is provided with a roller and a clamping device for clamping the workpiece. The two ends of the workpiece clamping table 9-2 are rotatably arranged, and the workpiece clamping table 9-2 is driven to rotate by a rotary drive mechanism 9-6, and the cylinder body 100 is driven to rotate at the same time. A transverse slide 9-4 is fixedly provided on one side of the workpiece clamping table 9-2, and a robotic arm 9-3 is provided on the transverse slide 9-4. The robotic arm 9-3 is equipped with a high-pressure flushing nozzle for performing fixed-point cleaning on the cylinder body 100. The robotic arm 9-3 can move horizontally on the transverse slide 9-4. Figure 4As shown, the traverse slide 9-4 is provided with a slide rail and a cylinder for driving the horizontal movement of the robotic arm 9-3. The cleaning box 9-1 is also fixedly provided with a roller drive mechanism 9-5 for driving the rollers on the workpiece clamping table 9-2. A clutch mechanism is provided between the roller drive mechanism 9-5 and the power input component of the roller. When the cylinder 100 enters or exits, the clutch mechanism is engaged, and the roller drive mechanism 9-5 drives the rollers to operate. During the cleaning process, the workpiece clamping table 9-2 needs to rotate as a whole, and the clutch mechanism is in a disengaged state.

[0088] The second water storage system 7 includes a third water tank 7-1 and a second filtering system 7-2. The third water tank 7-1 is connected to the high-pressure flushing nozzle and is connected to the cleaning tank 9-1 through a sewage pump. It is used to recover the waste water in the cleaning tank 9-1 and recover it after filtering through the second filtering system 7-2.

[0089] The detection area 12 is used to monitor the cylinder body 100 after the fixed-point cleaning. The detection area 12 is connected to the fixed-point cleaning mechanism 9 through a conveyor roller. Figure 2 As shown, the detection area 12 includes a first detection area 12-1 and a second detection area 12-2 arranged in parallel. The first detection area 12-1 and the second detection area 12-2 alternately receive the cylinder body 100 to be detected, ensuring uninterrupted operation of various functional areas on the production line and improving production efficiency.

[0090] The laser cleaning area is connected to the inspection area 12 via a conveyor roller and is used to laser clean the cylinders 100 that have passed the initial inspection. The laser cleaning area includes an automatic laser cleaning system 14 and a manual laser supplementary cleaning area 15. The automatic laser cleaning system 14 is equipped with a machine vision inspection system. The machine vision inspection system captures images of the cylinder 100 surface and identifies stains on the cylinder 100. Based on the machine vision inspection results, the system performs automated laser cleaning of the sections. The automatic laser cleaning system 14 includes a rotating cage and a robotic arm. The cage is equipped with a workpiece clamping mechanism, and the rotating cage rotates in conjunction with the robotic arm to perform automatic laser cleaning.

[0091] The manual laser supplementary cleaning area 15 is equipped with a manual laser cleaning head, which is manually operated to perform supplementary cleaning on areas that have not been cleaned thoroughly.

[0092] like Figure 2 As shown, in the laser cleaning area, the discharge end of the manual laser supplementary cleaning area 15 and the composite cleaning mechanism are connected through a conveying roller, which is used to send the cylinder body 100 cleaned by the laser back for secondary cleaning.

[0093] The hot air drying mechanism 10 is arranged on the conveying roller from the fixed-point cleaning mechanism 9 to the detection area 12, and is used to dry the cylinder body 100 that has undergone secondary cleaning; when the cylinder body 100 that has completed the fixed-point cleaning for the first time passes through the hot air drying mechanism 10, the hot air drying mechanism 10 does not work.

[0094] The unloading receiving device 17 is connected to the detection area 12 and is used to output the cleaned cylinder body 100; the unloading receiving device 17 is a turning cage conveyor roller, which turns the cylinder body 100 180 degrees and then takes it off the line, and is transported by an AGV transporter to other work areas for assembly.

[0095] In this embodiment, Figure 2 As shown, the loading receiving device 1, several conveying rollers and the unloading receiving device 17 are connected in sequence to form an "I"-shaped main conveying line that runs through the entire cleaning line; the composite cleaning mechanism, the fixed-point cleaning mechanism 9 and the detection area 12 are arranged on the first side of the main conveying line, the laser cleaning area is arranged on the second side of the main conveying line, and the hot air drying mechanism 10 is arranged on the main conveying line; the main conveying line runs through the entire cleaning line, and the various functional areas are placed on both sides of the main conveying line, which can reasonably utilize space and avoid mutual interference. The main conveying line can also be directly connected to each functional area, which is convenient for the design adjustment of the process flow and temporary process changes. The hot air drying mechanism 10 is combined with the main conveying line. The main conveying line utilizes the tunnel of the hot air drying mechanism 10, so that it also has the function of a conveying roller; and the hot air drying mechanism 10 also utilizes the line space of the main conveying line. The two are organically combined, saving equipment costs and improving space utilization.

[0096] like Figure 1 As shown, the main conveyor line includes several conveyor rollers, including a first translating roller 2, a first rotating roller 3, a second rotating roller 8, a second translating roller 13, and a third rotating roller 11. The first rotating roller 3, the second rotating roller 8, and the third rotating roller 11 are structurally identical and can rotate to switch routes. The first translating roller 2 and the second translating roller 13 are structurally identical, including a translating bracket and a conveyor roller slidably mounted on the translating bracket. Driven by a motor, the conveyor rollers can translate on the translating bracket.

[0097] When the first translation roller 2 is located at the first end, its two ends are respectively connected to the loading receiving device 1 and the first rotating roller 3; when it is located at the second end, it is connected to the discharge end of the laser cleaning area; the first rotating roller 3 is rotated 90 degrees and then connected to the composite cleaning mechanism; the second rotating roller 8 is rotated 90 degrees and then connected to the fixed-point cleaning mechanism 9; when the second translation roller 13 is located at the first end, its two ends are respectively connected to the hot air drying mechanism 10 and the third rotating roller 11; when it is located at the second end, it is connected to the feed end of the laser cleaning area; the third rotating roller 11 is rotated 90 degrees and then connected to the detection area 12, and the unloading receiving device 17 is connected to the third rotating roller 11.

[0098] The cleaning line also includes a material removal roller 18, which is arranged parallel to the main conveyor line and is located between the main conveyor line and the laser cleaning area. A third translation roller 16 is installed within the material removal roller 18. The third translation roller 16 has the same structure as the first translation roller 2 and the second translation roller 13. When the third translation roller 16 is at the first end, it connects with the first translation roller 2 at the second end. When the third translation roller 16 is at the second end, it connects with the discharge end of the laser cleaning area. When the second translation roller 13 is in the middle, it connects with the starting end of the material removal roller 18.

[0099] The cleaning line also includes an automated control system centered around an industrial computer and a PLC, with RFID+QR code marking the identity information of the workpiece (cylinder body 100). The above hardware is connected through reliable industrial communication, and the remanufacturing cleaning work is completed under the control of the automated control system.

[0100] Before the cleaning line of this embodiment is officially used for cleaning, the cylinder body 100 is first automatically sprayed and pre-cleaned by a cleaning mechanism, and an immersion ultrasonic cleaning pool is separately provided for workpieces that are heavily dirty or oily.

[0101] like Figure 2 As shown, the AGV transporter transports the cylinder body pallet after pre-rinsing from the disassembly area to the cleaning line, the pallet stops and scans the code, and the cylinder body 100 is transferred to the loading receiving device 1, turned 180 degrees, and transported to the first rotating roller 3 through the first translation roller 2 (the first translation roller 2 is located at the first end at this time); the first rotating roller 3 receives the cylinder body 100 and rotates 90 degrees, connecting with the roller 4-3 in the ultrasonic cleaning tank 4, and transports the cylinder body 100 to be cleaned into the ultrasonic cleaning tank 4 for composite cleaning (ultrasonic cleaning and deburring treatment).

[0102] After the composite cleaning is completed, the cleaning liquid in the ultrasonic cleaning tank 4 is discharged, the proximal side wall 4-1 is opened, and the cylinder body 100 returns to the first rotating roller 3. The first rotating roller 3 rotates 90 degrees to reset, and the cylinder body 100 is transported to the second rotating roller 8. After the second rotating roller 8 rotates 90 degrees, it is connected with the workpiece clamping table 9-2 of the fixed-point cleaning mechanism 9 through a conveying roller, and the cylinder body 100 is sent to the workpiece clamping table 9-2. The workpiece clamping table 9-2 is set on the rotating cage. After the workpiece clamping table 9-2 clamps the cylinder body 100 through the hydraulic mechanism, the rotary drive mechanism drives the rotating cage to rotate, and the control system controls the robotic arm 9-3 to synchronously flush the holes on the cylinder body 100.

[0103] After the fixed-point cleaning is completed, the cylinder body 100 is returned to the second rotating roller 8, the second rotating roller 8 rotates 90 degrees to reset, passes through multiple conveying rollers and passes through the hot air drying mechanism 10 and the second translation roller 13 (located at the first end at this time) and is sent to the third rotating roller 11. The third rotating roller 11 rotates 90 degrees and connects with the detection area 12 to send the cylinder body 100 to the detection area 12 for detection. The cylinder body 100 that passes the detection is returned to the second translation roller 13, and the second translation roller 13 is translated. To the second end, the cylinder body 100 is sent to the laser automatic cleaning system 14 for automatic laser cleaning. After completion, the cylinder body 100 is sent to the manual laser supplementary cleaning area 15 for manual laser supplementary cleaning. After completion, it is sent to the third translation roller 16 (now located at the second end). After the third translation roller 16 is translated to the first end, it is located on the material removal roller 18, and the cylinder body 100 is sent to the first translation roller 2 located at the second end. After the first translation roller 2 is translated to the first end, the cylinder body 100 is sent back for secondary cleaning.

[0104] The cylinder body 100 that fails the inspection is returned to the second translation roller 13, and the second translation roller 13 is translated to the third end, and is sent to the first translation roller 2 at the second end through the material removal roller 18. After the first translation roller 2 is translated to the first end, the cylinder body 100 is sent back for re-cleaning.

[0105] After the secondary cleaning, the cylinder body 100 passes through the hot air drying mechanism 10. The lifting cylinder drives the drying box down, the fan first disperses the water droplets on the cylinder body 100, and the hot air nozzle performs hot air drying. The dried cylinder body 100 is transported to the inspection area 12 for inspection. If the inspection is qualified, it returns to the third rotating roller 11, then rotates 180 degrees through the unloading receiving device 17, and is transported by the AGV to the assembly operation area, completing the cleaning and off-line.

[0106] When the cylinder body 100 needs to be inspected, the cylinder body 100 is extracted through the ejection roller 18 for subsequent processing.

[0107] The cleaning line described in this embodiment, based on the organizational characteristics of the equipment of the high-horsepower engine remanufacturing cleaning system, the interaction characteristics between the equipment, and the state-dependent characteristics of energy consumption, can solve the problems of processing time, process route uncertainty, and the coexistence of parallel and batch processing on the basis of system constraints, reduce standby energy consumption, and ensure green energy saving.

[0108] This cleaning line has a high degree of automation. It uses a pallet to carry the cylinder body 100, which automatically enters the composite cleaning mechanism and the fixed-point cleaning mechanism for automatic cleaning. Through high-temperature water spray cleaning and water-changing ultrasonic cleaning, it can effectively remove product sludge, floating rust, carbon deposits and other stains. No human intervention is required, and the brushing of the oil channel hole is automatically completed.

[0109] This cleaning line is highly flexible. The degree of damage to the individual, high-horsepower diesel engine cylinders 100 determines the highly variable cleaning process path, processing time, cost, and energy consumption. During the laser cleaning process, machine vision is used to plan the cleaning path, enabling automated path planning and control, as well as real-time feedback and adjustment of process parameters. This highly efficient and flexible cleaning and remanufacturing process addresses the labor-intensive, low-efficiency, and inconsistent quality issues typically encountered in actual production.

[0110] The present invention aims at the energy efficiency optimization problem at the remanufacturing process chain level. Taking into account the uncertainty of process paths and process times, as well as the existence of parallel machines and batch processing machines, it constructs a mathematical model for energy-saving process chain production scheduling, thereby providing a theoretical basis for reducing equipment standby energy consumption through scheduling.

[0111] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-horsepower engine regeneration cylinder cleaning process, characterized in that: The steps include: S1. Immerse the cylinder body in an ultrasonic cleaning tank filled with cleaning fluid to perform ultrasonic cleaning to remove stains attached to the cylinder body; S2. Deburring the oil passage holes of the cylinder body to remove the burrs on the oil passage holes; S3. Fixed-point cleaning: Use high-pressure water to flush the holes on the cylinder body to remove stubborn stains and particles in the holes; S4, inspection: inspect the cylinder body after the fixed-point cleaning. If qualified, proceed to the following steps. If unqualified, repeat S1 to S3; S5. Laser cleaning: Laser clean the unclean parts of the cylinder to remove residual stains; S6, repeat S1 to S3 for secondary cleaning; S7, drying the cylinder body; S8, inspection, offline, and cylinder cleaning completed.

2. A high-horsepower engine regeneration cylinder cleaning process according to claim 1, characterized in that: In S1, the cleaning liquid temperature is 60-85°C, the ultrasonic frequency is 28-40kHz, the power density is 500-800W / m², and the cleaning time is 3-5h.

3. A high-horsepower engine regeneration cylinder cleaning process according to claim 1, characterized in that: In the S3, the water temperature is 60-85°C, the water flow pressure is 20 MPa, and the flushing time for each hole is not less than 15 seconds.

4. A high-horsepower engine regeneration cylinder cleaning process according to claim 1, characterized in that: In said S4, the detection standard is, Oil hole: particle size less than 1mm, cleanliness less than 45mg; Water jacket hole: particle size less than 2.4mm, cleanliness less than 40mg; Oil cooler: particle size less than 1mm, cleanliness less than 30mg; Lubrication and air intake: particle size less than 3mm, cleanliness less than 15mg; Among them, cleanliness refers to the weight of the debris obtained after injecting sufficient running water into the hole to be tested and collecting the running water at the outlet of the hole and filtering; particle size refers to the maximum length of the debris obtained.

5. A high-horsepower engine regeneration cylinder cleaning process according to claim 1, characterized in that: Said S5 comprises, S5-1, automatic laser cleaning: Use machine vision detection method to collect cylinder surface images and identify stains on the cylinder body, and perform automatic zoned laser cleaning based on the machine vision detection results; S5-2, the cylinder body that has been automatically laser cleaned by the machine is manually supplemented with laser cleaning.

6. A high-horsepower engine regeneration cylinder cleaning process according to claim 1, characterized in that: In S3, after flushing the holes on the cylinder body, the cylinder body is turned over and the water is poured out, so that the water containing stains flows out of the cylinder body, and at the same time, a rust prevention effect is achieved.

7. A high-horsepower engine regeneration cylinder cleaning process according to claim 1, characterized in that: In S7, hot air is used to dry the cylinder body. The air is heated to 60-80° C. by a heater. The fan sends the hot air into the cylinder body, and the exhaust gas is reheated or discharged through the return air duct.

8. A cleaning line for implementing the cleaning process according to any one of claims 1 to 7, characterized in that: include: A loading receiving device (1) for receiving the cylinder to be cleaned; A composite cleaning mechanism is connected to the feeding receiving device (1), and includes an ultrasonic cleaning tank (4) for ultrasonically cleaning the cylinder body; a first water storage system (5) for supplying cleaning liquid to the ultrasonic cleaning tank (4); and a deburring mechanism (6) adjacent to the ultrasonic cleaning tank (4) for deburring the oil channel hole of the cylinder body, wherein the brush rod (6-1) of the deburring mechanism (6) extends into the interior of the ultrasonic cleaning tank (4) through the side wall of the ultrasonic cleaning tank (4), and the brush rod (6-1) is in sealing cooperation with the side wall of the ultrasonic cleaning tank (4); A fixed-point cleaning mechanism (9), connected to the composite cleaning mechanism, is used to flush the holes on the cylinder body; A second water storage system (7) is used to supply clean water to the fixed-point cleaning mechanism (9); A detection area (12) is used to monitor the cylinder body after the fixed-point cleaning, and the detection area (12) is connected to the fixed-point cleaning mechanism (9) through a conveying roller; A laser cleaning area is connected to the inspection area (12) via a conveyor roller and is used to laser clean the cylinder body that has passed the first inspection; The discharge end of the laser cleaning area and the composite cleaning mechanism are connected through a conveyor roller to return the laser-cleaned cylinder for secondary cleaning. A hot air drying mechanism (10) is provided on a conveying roller conveyor leading from the fixed-point cleaning mechanism (9) to the detection area (12), and is used to dry the cylinder body after secondary cleaning; The material receiving device (17) is connected to the detection area (12) and is used to output the cleaned cylinder body.

9. The cleaning line according to claim 8, characterized in that: The loading receiving device (1), a plurality of conveying rollers and the unloading receiving device (17) are sequentially connected to form an "I"-shaped main conveying line that runs through the entire cleaning line; The composite cleaning mechanism, the fixed-point cleaning mechanism (9) and the detection area (12) are arranged on the first side of the main conveyor line, the laser cleaning area is arranged on the second side of the main conveyor line, and the hot air drying mechanism (10) is arranged on the main conveyor line; The plurality of conveying rollers on the main conveying line include a first translation roller (2), a first rotation roller (3), a second rotation roller (8), a second translation roller (13) and a third rotation roller (11); When the first translation roller (2) is located at the first end, it connects to the loading receiving device (1) and the first rotating roller (3); when it is located at the second end, it connects to the discharge end of the laser cleaning area; The first rotating roller (3) rotates 90 degrees and then connects to the composite cleaning mechanism; The second rotating roller (8) rotates 90 degrees and then connects to the fixed-point cleaning mechanism (9); When the second translation roller (13) is located at the first end, the two ends are connected to the hot air drying mechanism (10) and the third rotating roller (11), respectively; when it is located at the second end, it is connected to the laser cleaning area; The third rotating roller (11) is connected to the detection area (12) after rotating 90 degrees, and the blanking receiving device (17) is connected to the third rotating roller (11).

10. The cleaning line according to claim 9, characterized in that: The loading receiving device (1) and the unloading receiving device (17) are both cage-type turning devices, used for docking with the AGV transport vehicle and turning the cylinder body 180 degrees; The cleaning line further comprises a material removal roller (18) arranged in parallel with the main conveying line, and the material removal roller (18) is arranged between the main conveying line and the laser cleaning area; A third translation roller (16) is provided in the material removal roller (18); when the third translation roller (16) is located at the first end, it is connected to the first translation roller (2) when it is located at the second end; when the third translation roller (16) is located at the second end, it is connected to the discharge end of the laser cleaning area; when the second translation roller (13) is located in the middle, it is connected to the starting end of the material removal roller (18).

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