Control method and device for automatically cutting valve welding seam

Abstract

The invention relates to a control method and device for automatically cutting a welding seam of a valve. The method comprises the steps that pre-starting is conducted, after pre-starting passes, a cutting determining signal is generated, based on the cutting determining signal, a cutting module cuts the welding seam of the valve, and the operation of cutting the welding seam of the valve is monitored in real time. According to the embodiment of the invention, the equipment signal is used for pre-starting and determining the cutting signal, so that the cutting process is automatic, the manual intervention and the potential misoperation risk caused by the manual intervention are reduced, and the highly automatic control not only optimizes the cutting path and depth, ensures the uniformity and integrity of the welding seam, but also improves the welding quality. And the repeatability and the reliability of the operation are obviously improved. Due to the application of automatic cutting, the requirement that operators are exposed in a high-radiation environment for a long time is reduced, the occupational health risk and the accident probability caused by misoperation are effectively reduced, and the overall safety management of a nuclear factory is enhanced.

Description

[Technical field] The present application relates to the technical field of valve welds, and in particular to a control method and device for automatically cutting valve welds. [Background technology] In the existing technology, some key areas of nuclear plants, such as the inside of the reactor and the radioactive waste treatment area, have extremely limited space. In these areas, traditional automatic cutting equipment is often difficult to deploy, so workers are required to perform manual welding operations. Manual operation not only increases the complexity of the operation, but also because of long-term work in an environment with high nuclear radiation concentration, it is very easy to cause serious effects on the health of operators. Long-term exposure to high radiation environments may cause various radiation diseases and even increase the risk of cancer. In addition, during the manual cutting of welds, due to the complexity and high risk of the operation, operators face a higher risk of safety accidents. For example, misoperation may cause sudden mechanical injuries or fires and other dangerous situations. Manual cutting is also difficult to achieve the accuracy and repeatability provided by automatic cutting equipment, which may lead to unstable weld quality and increase safety hazards in future operations. [Summary of the invention] In order to solve the existing problems, in a first aspect, an embodiment of the present application provides a control method for automatically cutting a valve weld, comprising: Perform pre-start; After the pre-start is passed, a confirmation cutting signal is generated; Based on the determined cutting signal, the cutting module cuts the valve weld; Real-time monitoring of valve weld cutting operations.

[0004] In a second aspect, an embodiment of the present application provides a control device for automatically cutting a valve weld, comprising: An acquisition module, used to acquire device signals; A determination module, used for pre-starting based on a device signal to obtain a determination cutting signal; A cutting module, used for cutting the valve weld based on a determined cutting signal; The monitoring module is used to monitor the cutting valve weld operation in real time.

Brief Description of the Drawings

[0006] Figure 1is a flow chart of a control method for automatically cutting a valve weld according to a first embodiment of the present invention; Figure 2 A three-dimensional schematic diagram of a control device for one-way automatic cutting of valve welds according to the present invention Figure 2 ; Figure 3 A schematic diagram of a control device for one-way automatic cutting of valve welds according to the present invention. Figure 3 ; Figure 4 A schematic diagram of a ratchet automatic cutting mechanism of a control device for one-way automatic cutting of valve welds of the present invention Figure 4 ; Figure 5 A schematic diagram of a ratchet automatic cutting mechanism of a control device for one-way automatic cutting of valve welds of the present invention Figure 5 ; Figure 6 Schematic diagram of the ratchet rotating disc of the control device for one-way automatic cutting of valve welds of the present invention Figure 6 ; Figure 7 Schematic diagram of the ratchet rotating disc of the control device for one-way automatic cutting of valve welds of the present invention Figure 7 ; Figure 8 A ratchet wrench schematic diagram of a control device for one-way automatic cutting of valve welds of the present invention Figure 8 ; Fig. 9 A schematic diagram of a ratchet base of a control device for one-way automatic cutting of valve welds according to the present invention Figure 9 ; Fig.10 A schematic diagram of a clamping mechanism of a control device for one-way automatic cutting of valve welds according to the present invention Figure 10 ; Fig.11 A schematic diagram of an electric drive mechanism of a control device for one-way automatic cutting of valve welds according to the present invention Figure 10 one; Fig.12 The internal schematic diagram of the electric drive mechanism of the control device for one-way automatic cutting of valve welds of the present invention Figure 10 two; Fig.13 The internal diagram of the automatic lifting mechanism of the control device for one-way automatic cutting of valve welds of the present invention Figure 10 three; Fig.14 is a structural block diagram of a control device for automatically cutting a valve weld according to a second embodiment of the present invention; Fig.15 is a structural block diagram of a computer device according to another embodiment of the present invention; Fig.16It is a structural block diagram of an electronic device according to another embodiment of the present invention. [Specific implementation method] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, and the well-known modules, units and their connections, links, communications or operations are not shown or described in detail. In addition, the described features, architectures or functions can be combined in any way in one or more embodiments. It should be understood by those skilled in the art that the various embodiments described below are only for illustration and are not intended to limit the scope of protection of the present invention. The modules or units or processing methods in the various embodiments described herein and shown in the drawings can be combined and designed according to various different configurations. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0008] First embodiment: Please refer to Figures 1 to 13 As shown, this embodiment proposes a control method for automatically cutting a valve weld, including S11-S14, wherein: S11, pre-starting; Step S11 ensures that the entire cutting system is in the best condition before the cutting operation officially begins. The following is a detailed explanation: As a preferred solution but not a limitation, this step S11 also includes S111-S118, wherein: S111, obtaining a start signal; S112, if startup failure is detected, perform device self-check; S113, if the startup is detected to be successful, the valve lifting operation is performed; S114, obtaining valve cutting position information; S115, if it is incorrect, perform the valve lifting and lowering operation again; Specifically, the valve lifting operation includes: when the height of the device needs to be raised, the driving motor 116 rotates from the first direction, the second bevel gear 118 connected to the driving motor 116 meshes with the first bevel gear 114 and rotates, and the first bevel gear 114 drives the second lifting column 111 to rise when it is necessary to lower the height of the device, the driving motor 116 rotates from the second direction, the second bevel gear 118 connected to the driving motor 116 meshes with the first bevel gear 114 and rotates, and the first bevel gear 114 drives the second lifting column 111 to descend when it is necessary to lower the height of the device. The automatic lifting mechanism realizes accurate, stable and reliable lifting control through the driving motor 116 and the bevel gear transmission system, and has a two-way control function, is easy to maintain, saves space and has low energy consumption.

[0009] During the lifting process of the lifting device, the load on the platform should be considered, so standard helical cylindrical gears should be selected for meshing transmission. The advantages of gear transmission are as follows: (1) High transmission accuracy. Belt drive cannot guarantee an accurate transmission ratio, and chain drive cannot guarantee a constant instantaneous transmission ratio. However, the progressive transmission ratio commonly used today is theoretically accurate and consistent, which is not only a basic requirement for precision machinery and instruments, but also an important requirement for reducing dynamic loads and achieving stable transmission under high speed and heavy load.

[0010] (2) Wide range of applications. The power range of gears is very wide, from 0.001 W to 60,000 kW; the speed can be very low or as high as 150 m / s. Belt drive and chain drive cannot be compared.

[0011] (3) Parallel axes, cross axes, staggered axes and any other gaps between two transmission shafts can be achieved, which is impossible with belt drives and chain drives.

[0012] (4) Reliable operation and long service life.

[0013] (5) The transmission ratio is large. A relatively large transmission ratio can be determined according to the number of teeth to meet the transmission speed requirements of different mechanisms.

[0014] Specifically, the force analysis of the helical gear is as follows: Similar to spur gears, in order to calculate the nominal normal force, it is first decomposed into circumferential force, radial force and axial force, and then calculated based on the force balance condition and the relationship between the forces. That is:

[0015] The specific parameters have the following meanings: Ft1 is the circumferential force of the gear, the tangential force generated along the gear contact surface of the gear, and is the main force driving the gear transmission; Fr1 is the radial force, which acts along the radial direction of the gear and generates pressure on the gear bearing; Fa1 is the axial force, the force along the gear axis, caused by the contact angle of the helical gear teeth; T1 is the torque on the gear, the torque that drives the gear to rotate; d1 is the pitch circle diameter of the gear, which refers to the diameter of the circle at the center of the gear teeth; α is the helix angle of the gear, that is, the inclination angle of the helical gear tooth surface, which determines the magnitude of the axial force; β is the pressure angle of the helical gear, indicating the direction and position of the force; KA is the service factor, which indicates the effect of additional loads on the gear system due to working conditions (such as starting, stopping, impact loads, etc.). In the formula, KA = 1, which means that no additional service impact is considered; v is the linear velocity of the gear in meters per second; Kv is the dynamic load coefficient, which indicates the effect of the dynamic additional load on the gear system caused by the rotation speed of the gear; KH is the actual load factor, which is the combined value of various load factors; KHα is the inter-tooth load distribution coefficient, which represents the uneven load distribution caused by gear geometry and meshing accuracy; KHβ is the tooth load distribution coefficient, which indicates the uneven load distribution caused by gear installation error or tooth error; b is the tooth width, which indicates the working width of the gear in millimeters; d1H is the gear pitch circle diameter corrected according to the actual load factor; mnH is the normal module of the gear; KF is the tooth root bending factor; Ye is the tooth form coefficient; Yβ is the tooth coefficient; YFa is the tooth root bending stress correction factor; YSa is the material surface stress correction factor; σ F is the tooth root fatigue limit strength; ϕ d is the gear diameter factor; z1 and z2 are the number of teeth of the driving gear and the driven gear respectively; mnt is the normal module of the gear; h is the tooth height; ham is the tooth height coefficient; Cn is the tooth root height coefficient; Zv1 and Zv2 are the corrected number of teeth; YFa1 and YFa2 are tooth form coefficients; YSa1 and YSa2 are stress correction factors; The stress analysis of the large gear is similar to that of the small gear. Helical gears have axial forces, which increase with the increase of the helix angle. To prevent the bearing from being subjected to excessive axial forces, the helix angle should be controlled, generally within the range of 8°~20°. The herringbone gear is equivalent to two helical gears rotating in opposite directions. The axial forces generated by the two helical gears are equal and opposite. Considering the manufacturing errors and fluctuations in operation, the axial forces may be unbalanced, but in general, the axial forces are much smaller than those of the helical gears. Therefore, the helix angle β of the herringbone gear can take a large value.

[0016] (1) Calculate the actual load factor From the table, we can get the usage coefficient KA=1.

[0017] According to v=3 m / s and 7th grade accuracy, it can be known from the table that the dynamic load coefficient Kv=1.20.

[0018] Circumferential force of gear:

[0019] From the table, we can get the inter-tooth load distribution coefficient KHα=1.5:

[0020] From the mechanical principle appendix table, we can know that when the interpolation method is used to check the 7th level accuracy and the pinion relative support is arranged asymmetrically, KHβ=1.413. Then the dynamic load coefficient is:

[0021] The following formula can be used to obtain the graduation circle diameter calculated according to the actual load factor:

[0022]

[0023] And the corresponding gear module:

[0024] The gear module is calculated based on the tooth root bending fatigue strength design, that is:

[0025] Circumferential speed v:

[0026] Tooth width b:

[0027] Gear height ratio b / h:

[0028] By the equivalent number of teeth:

[0029] By looking up the table, the tooth shape coefficient and stress correction coefficient are:

[0030] The allowable stress can be calculated as follows:

[0031] S116, if correct, then perform pipe clamping operation; Specifically, the pipe clamping operation includes: rotating the adjustment mechanism 414 so that the rear end 413 of the clamping module moves close to the valve, the rear end 413 of the clamping module pushes the first clamping module 411 to move toward the middle of the valve, and the second clamping module 412 approaches the valve from both sides so that the clamping mechanism 41 clamps the valve weld from three positions. Multi-point clamping can evenly distribute force and avoid deformation or damage caused by excessive local force. The clamping mechanism can adapt to valves of various sizes and shapes.

[0032] S117, obtaining clamping status information; S118, if the standard is not met, re-perform the pipe clamping operation.

[0033] Steps S111-S118 ensure the safety, accuracy and reliability of the entire automatic cutting system. By systematically confirming and adjusting each step, the process significantly reduces the risk of operating errors and equipment failures, and enhances the consistency and predictability of operations. In addition, this method can significantly improve the efficiency and quality of the cutting process, reducing time waste and material loss due to position errors or equipment failures. Overall, this detailed pre-startup inspection process helps to ensure the safety of personnel and equipment, while improving production efficiency and product quality.

[0034] S12, after the pre-start is passed, a confirmation cutting signal is generated; As a preferred solution but not a limitation, this step S12 further includes S121, wherein: S121, if the clamping state information meets the standard, a cutting confirmation signal is sent.

[0035] Step S12 and its sub-step S121 in this embodiment ensure that all preparatory work has met the predetermined standards before the actual cutting is carried out, and then a certain cutting signal is generated and sent by verifying whether the clamping state information meets the standards. This method significantly improves the safety and accuracy of the operation, ensures that the cutting process is carried out under optimal conditions, thereby reducing operational risks and possible material waste. Through this systematic verification process, the efficient operation of the equipment and the maintenance of production quality can be effectively guaranteed, while avoiding safety accidents caused by equipment or operational errors, providing additional safety protection for on-site operators and equipment.

[0036] S13, based on the determined cutting signal, the cutting module cuts the valve weld; Specifically, cutting the valve weld includes: a motor drives the first bevel gear (114) to mesh with the second bevel gear (118), driving the second lifting column (112) to move up and down to a suitable height for cutting. The bolts of the clamping mechanism (41) are adjusted, and two cylindrical push rods clamp the valve from the middle, and two arc push rods clamp the valve from both sides; After the clamping is completed, the motor of the second electric drive mechanism (3) drives the connecting rod and the slider to move through the gear transmission system, thereby driving the ratchet wrench (421) to swing; When the ratchet wrench (421) rotates clockwise, the pawl clamps the first ratchet tooth (4212), and the ratchet rotates and drives the tool feeding mechanism (43) to perform cutting; When the ratchet wrench (421) rotates counterclockwise, the pawl disengages and the ratchet rotating disc (422) stops rotating; The weld cutting is continued by the reciprocating motion of the ratchet wrench (421) until it is completed, and the cutter feed rate can be adjusted manually or electrically by the cutter adjustment member (433).

[0037] More specifically, cutting the valve weld includes: the motor in the automatic lifting mechanism drives the first bevel gear 114 to rotate, the first bevel gear 114 engages the second bevel gear 118, and the second bevel gear 118 rotates to drive the second lifting column 112 to rise or fall to a suitable height to facilitate cutting. The adjusting bolt 414 in the clamping mechanism is rotated to adjust the valve from the middle of the two cylindrical push rods 411, and the two arc push rods 412 clamp the valve from both sides.

[0038] After the valve is clamped, the driving motor 32 in the second electric driving mechanism 3 rotates to drive the first bevel gear 34, the first bevel gear 34 drives the first cylindrical spur gear 37, the first cylindrical spur gear 37 drives the second cylindrical spur gear 38, and the second cylindrical spur gear 38 drives the connecting rod 39 and the slider 311 to perform a crank slider movement. The ratchet wrench 421 performs a swinging motion under the action of the connecting rod 39 and the slider 311. When rotating clockwise, the ratchet pawl clamps the first ratchet teeth 4212 and the second ratchet teeth 4232, so that the ratchet rotating disk 422 rotates together with the ratchet wrench 421, and the tool feeding mechanism 43 rotates with the ratchet rotating disk 422 and cuts the valve weld. The feed amount of the tool can be adjusted by rotating the cutter bolt 433 manually or electrically. When the ratchet wrench 421 rotates counterclockwise, the pawl moves away from the first ratchet tooth 4212 and the second ratchet tooth 4232, causing the ratchet rotating disk 422 to stop rotating, while the ratchet wrench 421 rotates counterclockwise. When reaching the limit position, the ratchet wrench 421 rotates clockwise again, repeating the previous movement to cut the weld until the valve weld is cut.

[0039] As another embodiment, cutting the valve weld includes: when the second drive motor (32) rotates, the first bevel gear (34) is driven to rotate, and at the same time, the first bevel gear (34) is meshed with the second bevel gear (35) so that the second bevel gear (35) rotates, the first cylindrical spur gear (37) rotates following the second bevel gear (35), and the first cylindrical spur gear (37) is meshed with the second cylindrical spur gear (38) so that the first cylindrical spur gear (37) drives the second cylindrical spur gear (38) to rotate; One end of the connecting rod (39) is connected to the second cylindrical spur gear (38), and the end away from the second cylindrical spur gear (38) is connected to the slider (311); the second cylindrical spur gear (38), the connecting rod (39) and the slider (311) form a crank slider mechanism, so that the slider (311) performs a swinging motion in the arc-shaped groove (310).

[0040] The second drive motor 32 effectively converts the rotational motion of the motor into subsequent linear or swinging motion through the combination of bevel gears and cylindrical spur gears. The combination of bevel gears and cylindrical spur gears has a compact structure and saves space, and is suitable for applications in limited spaces. Through the combination of the connecting rod 39 and the slider 311, a larger range of swinging motion can be achieved. By adjusting the length of the connecting rod 39 and the position of the slider 311, the swing amplitude and frequency during the cutting process can be adjusted.

[0041] The ratchet wrench 421 engages with the ratchet rotating disc 422 in the first rotation direction, so that the ratchet rotating disc 422 swings along with the ratchet wrench 421, and the tool feeding mechanism 43 in the ratchet rotating disc 422 cuts the valve weld. After the ratchet wrench 421 rotates to the first direction limit position, it rotates in the second direction, and the ratchet rotating disc 422 and the ratchet wrench 421 are released from the engagement, and the ratchet rotating disc 422 stops rotating. Repeat the above steps (the ratchet wrench 421 engages with the ratchet rotating disc 422 in the first rotation direction, so that the ratchet rotating disc 422 swings with the ratchet wrench 421, and the tool feeding mechanism 43 in the ratchet rotating disc 422 cuts the valve weld, and the ratchet wrench 421 rotates to the second direction after rotating to the limit position in the first direction, and the ratchet rotating disc 422 is disengaged from the ratchet wrench 421, and the ratchet rotating disc 422 stops rotating) until the valve weld cutting work is completed. Through the precise cooperation between the ratchet wrench 421 and the ratchet rotating disc 422, precise cutting control can be achieved. The tool feeding mechanism 43 continuously cuts the valve weld with the rotation of the ratchet rotating disc 422, realizing a continuous cutting process until the valve weld cutting work is completed.

[0042] As a preferred solution but not a limitation, this step S13 also includes S131-S135, wherein: S131, immediately after the cutting is completed, the weld state is inspected; S132, if the standard is met, the current weld is terminated and the next weld is waited for; S133, if the standard is not met, judging whether the conditions for re-cutting the valve weld are met based on the weld state; S134, if the conditions are met, cut the valve weld again; S135, if the condition is not met, an alarm is sent and cutting of the valve weld is stopped.

[0043] The weld state includes weld width, weld height, weld shape, weld bump, incomplete penetration, burn-through, pores, slag inclusions, and cracks; Among them, in step S131, after the automatic cutting system completes the cutting of the valve weld, it immediately performs a state inspection on the weld to ensure that the welding quality meets the preset standards. The inspection involves the identification of the width, height, shape of the weld, and possible defects such as weld bumps, incomplete penetration, burn-through, pores, slag inclusions and cracks.

[0044] In step S132, if the weld state detection result shows that the weld quality reaches or exceeds the specified standard, the system determines that the weld cutting task is completed. At this time, the automatic cutting system will end the operation on the current weld and prepare to process the next weld.

[0045] In step S133, if the weld state detection result does not meet the quality standard, the system will analyze the specific problem of the weld to determine whether the conditions for re-cutting are met.

[0046] Step S134 involves re-cutting the weld if the weld quality does not meet the standard and is determined to be repairable. This step ensures that product defects are corrected in a timely manner, thereby improving the reliability and safety of the final product. The system will automatically adjust the cutting parameters or modify the operation path and re-execute the cutting process to correct defects in the previous weld, such as weld bumps or lack of penetration.

[0047] In S135, if the weld condition inspection result indicates that the defect cannot be repaired by re-cutting, or the cost and risk of repair are too high, the system will decide not to perform further cutting operations. At this time, the system will send an alarm to the control center and stop the cutting operation of the valve weld, which may require manual intervention or classify the product as defective.

[0048] Steps S131 to S135 form a comprehensive weld quality control and response process, which greatly improves the efficiency and reliability of the automatic valve weld cutting system. Through this series of steps, the system can not only detect the weld status immediately after cutting is completed to ensure that all welds meet quality standards, but also respond quickly when problems are found. If the weld meets the standard, the system will smoothly transition to the processing of the next weld, thereby maintaining the continuity and high efficiency of the production process. For non-standard situations, the system will analyze the weld status in detail to determine whether it is necessary to cut again, or whether other measures such as sending an alarm and stopping the operation are needed.

[0049] S14, real-time monitoring of the valve weld cutting operation.

[0050] As a preferred solution but not a limitation, step S14 further includes steps S141-S146, wherein: S141, obtaining authorization information and device operation data; S142, confirming the operator who can enter the operation area according to the authorization information; S143, determine whether the operator has any potential dangerous behavior; S144, when the operator is too close to the danger zone, all active cutting operations are suspended until they are confirmed to be safe and then restarted; S145, judging a possible failure or out-of-control state of the device according to the device operation data; S146, before predicting a possible failure or performance degradation, generate maintenance requirements or directly adjust operating parameters.

[0051] In step S141, the system first ensures the optimization of safety and efficiency by obtaining the operator's authorization information and the current operation data of the equipment. The authorization information includes the operator's identity authentication, security level and access rights, which are crucial to ensure that only qualified personnel can operate the equipment. At the same time, equipment operation data, such as equipment status, performance indicators and historical maintenance records, are used to monitor the health of the equipment and predict possible operation problems. This step is the basis for ensuring operational safety and system efficiency. Through real-time data monitoring and precise authorization management, the safety of the workplace and the operation efficiency of the equipment are significantly improved.

[0052] Step S142 focuses on confirming whether individual operators have the authority to enter a specific operating area through the obtained authorization information. This step is extremely important to ensure the safety of the operating area and prevent unauthorized personnel from accessing potentially dangerous equipment. The system will check the operator's safety training records, position-related permissions and other necessary safety credentials to ensure that everyone entering the area has the appropriate qualifications and safety knowledge, thereby reducing workplace accidents and improving operational efficiency.

[0053] In step S143, the system uses behavioral analysis technology to determine whether the operator may engage in dangerous behavior, such as violating safety regulations, operating errors, etc. The technologies that may be used in this process include video surveillance analysis, motion sensing, and other real-time monitoring technologies to continuously monitor the operator's behavior patterns. This step helps prevent potential safety accidents and ensures that the operator's behavior meets safety standards, thereby greatly improving the safety of the working environment while ensuring production efficiency.

[0054] In step S144, if the operator is too close to an area defined as high risk or dangerous, the system will automatically suspend all related cutting operations. This automated safety measure prevents accidents caused by operators mispositioning or mistakenly entering dangerous areas. The system will continue to monitor until it is confirmed that there is no one in the area or the safety issue has been resolved before restarting the operation, ensuring the safety and effectiveness of high-risk operations.

[0055] In step S145, the system evaluates possible equipment failures or out-of-control conditions by analyzing the collected equipment operation data. These data include the machine's operating speed, temperature, vibration level, etc., and potential equipment problems are predicted through data analysis. This predictive maintenance strategy can take measures before problems occur, thereby reducing downtime and improving equipment operating efficiency and life.

[0056] Finally, in step S146, once a potential equipment failure or performance degradation is predicted, the system will not only generate maintenance requirements, but may also directly adjust operating parameters to prevent failures from occurring. This includes adjusting the speed, load, temperature settings, etc. of the machine to optimize equipment performance and prevent failures. This proactive problem management strategy improves equipment reliability and operational safety, ensuring the continuity and stability of the production process.

[0057] Steps S141 to S146 constitute a comprehensive set of safety and maintenance measures designed to enhance the operational safety and equipment efficiency of the automatic cutting valve weld system. These steps together provide a highly safe and automated working environment by precisely controlling access rights, monitoring operator behavior in real time, automatically suspending dangerous operations, and predicting and preventing equipment failures through equipment data analysis. By implementing these control measures, the system is able to reduce accidents and failures caused by unauthorized access, operating errors or equipment failures, significantly improving production efficiency and product quality. In addition, this process extends equipment life, reduces maintenance costs, and ensures the stability and reliability of the entire production process through timely maintenance and adjustments. This comprehensive safety and maintenance strategy is an indispensable part of modern automation systems, bringing significant economic benefits and competitive advantages to enterprises.

[0058] As a preferred solution but not a limitation, step S144 further includes steps S1441-S1448, wherein: S1441: Obtain the operator's historical behavior data and the dangerous behavior recognition model to be trained.

[0059] S1442: Based on the historical behavior data, construct a dangerous behavior identification training set, including normal operation behavior data and dangerous operation behavior data.

[0060] S1443: Perform data cleaning and feature extraction on the training set to obtain operator behavior feature data.

[0061] S1444: Classify the operator behavior feature data to obtain positive samples (dangerous behaviors) and negative samples (normal behaviors).

[0062] S1445: Assign labels to positive samples and negative samples respectively to form a training set for supervised learning.

[0063] S1446: Use the training set to train the dangerous behavior recognition model to be trained, optimize the model parameters, until the model converges, and obtain the trained dangerous behavior recognition model.

[0064] S1447: Input the operator behavior data monitored in real time into the trained dangerous behavior recognition model to identify and predict the operator behavior.

[0065] S1448: Based on the recognition results of the model, determine whether the operator has any dangerous behavior; if so, immediately issue an alarm and take corresponding measures, such as suspending equipment operation.

[0066] In step S1441, the system first collects the operator's historical behavior data, which may include video surveillance records, operation logs, accident reports, etc., reflecting the operator's behavior patterns at work and previous safety records. At the same time, select or design a machine learning model suitable for identifying dangerous behaviors. The purpose of this step is to lay the foundation for subsequent data processing and model training, ensuring sufficient data support and appropriate analysis tools to improve the accuracy and efficiency of identifying dangerous behaviors. By analyzing these historical data, it can help the system understand which behavior patterns may lead to safety risks, so as to provide effective early warning and intervention in future operations.

[0067] Step S1442 involves classifying the collected historical behavior data and creating a training set containing normal and dangerous operation behaviors. This step is a key link in the machine learning process. The quality of the training set directly affects the learning effect of the model and the final behavior recognition accuracy. Normal operation data reflects standard safe operations, while dangerous operation data highlights behaviors that may lead to accidents. By comparing these two types of data, the model can be effectively trained to distinguish between safe and risky behaviors, providing data support for the subsequent implementation of preventive measures.

[0068] In S1443, the system performs data cleaning, removes irrelevant information and noise data in the training set, and performs feature extraction, which is an important step in data preprocessing. The purpose of feature extraction is to convert complex behavioral data into a format that can be effectively processed by the model. It usually involves converting key information in video, log and other data, such as behavior frequency, action category, etc., into numerical features. These feature data will be used to train machine learning models to identify and predict dangerous behaviors.

[0069] Step S1444 further classifies the extracted feature data to determine which data belongs to normal operations (negative samples) and which belongs to potential dangerous operations (positive samples). This classification process is performed based on previously defined safety standards and danger indicators. The classification results will be directly used to train and optimize the dangerous behavior recognition model to ensure that the model can accurately distinguish different types of behaviors and improve recognition accuracy.

[0070] In step S1445, the system assigns clear labels to the classified data samples, indicating whether each sample is a normal behavior or a dangerous behavior. This step is a necessary process for building a supervised learning training set. The labeled data will be used as a reference standard in the model training process to evaluate the degree of consistency between the model's prediction results and the actual situation, so as to train and optimize the model.

[0071] Step S1446 involves training and adjusting the dangerous behavior recognition model using the labeled training set. During this process, the model optimizes its parameters by learning how to distinguish between positive and negative samples, thereby enhancing its ability to predict dangerous behaviors. The training process continues until the model parameters are stable (i.e., the model converges), at which point the model can recognize dangerous behaviors with a high degree of accuracy.

[0072] In S1447, the system collects the operator's behavior data in real time and inputs the data into the trained dangerous behavior recognition model. The model analyzes the real-time data, identifies and predicts the operator's behavior, and determines whether there is a safety risk.

[0073] Finally, in step S1448, if the model identifies any dangerous behavior, the system will immediately issue an alarm and take necessary preventive measures, suspending equipment operation or notifying managers to intervene.

[0074] As a preferred solution but not a limitation, step S147 further includes steps S1471-S1478, wherein: S1471: Obtain historical operation data of the equipment and the fault identification model to be trained.

[0075] S1472: Based on the historical operation data, construct a fault identification training set, including normal operation data and fault sample data.

[0076] S1473: Perform data cleaning and feature extraction on the training set to obtain equipment operation feature data.

[0077] S1474: Classify the equipment operation feature data to obtain positive samples (fault state) and negative samples (normal operation).

[0078] S1475: Assign labels to positive samples and negative samples respectively to form a training set for supervised learning.

[0079] S1476: Use the training set to train the fault identification model to be trained, optimize the model parameters, until the model converges, and obtain a trained fault prediction model.

[0080] S1477: Input the real-time collected equipment operation data into the trained fault prediction model to identify and predict the equipment operation status.

[0081] S1478: Based on the recognition results of the model, determine whether the equipment has a tendency to fail or degrade in performance; if so, take maintenance measures or adjust operating parameters in advance.

[0082] Specifically, authorization information refers to the identity authentication information that allows specific personnel to enter the operating area or operate equipment, such as employee cards, fingerprint recognition, facial recognition, etc.

[0083] Equipment operation data: includes various parameters of the equipment during operation, such as current, voltage, temperature, vibration, speed, load, etc., which are used to monitor the health status of the equipment.

[0084] Operator behavior data: refers to various behavioral data of the operator during the work process, such as location information, movement trajectory, operation records, wearing of protective equipment, etc., which are used to identify the operator's behavior pattern.

[0085] Dangerous behavior: refers to improper behavior of the operator during the operation that may lead to safety accidents, such as entering dangerous areas, failing to wear protective equipment as required, operating equipment in violation of regulations, etc.

[0086] Fault sample data: refers to the operating data of the equipment in a faulty or abnormal state, which is used to train the fault recognition model so that the model can recognize and predict similar faults.

[0087] Feature extraction: Extract useful feature indicators from raw data, such as: Operator behavior characteristics: movement speed, distance to dangerous areas, dwell time, operation sequence, etc.

[0088] Equipment operating characteristics: current fluctuations, temperature anomalies, vibration frequency changes, noise levels, etc.

[0089] Label: In machine learning, it is used to indicate the category to which the sample data belongs, for example: Operator behavior labels: normal operation, dangerous behavior.

[0090] Equipment operation label: normal operation, fault status.

[0091] Loss function: It is used to measure the difference between the model prediction results and the actual results. During the training process, the model is optimized by minimizing the loss function to improve the prediction accuracy.

[0092] The embodiment of the present invention further improves the response speed and processing accuracy of the cutting operation by real-time monitoring of the cutting valve weld operation. Specifically, the real-time monitoring system can instantly capture any behavior that deviates from the predetermined parameters, allowing the system to quickly adjust the cutting parameters or suspend the operation to deal with potential problems. This real-time feedback mechanism ensures that the weld quality is always under control and maintains stability even under extreme or unforeseen working conditions, which not only improves production efficiency but also reduces material waste.

[0093] Second embodiment: Please refer to Fig.14 As shown, this embodiment proposes a control device X for automatically cutting valve welds, including: a pre-start module A, used for pre-starting cutting; a determination module B, used to generate a determined cutting signal after the pre-start is passed; a cutting module C, used to cut the valve weld based on the determined cutting signal; a monitoring module D, used to monitor the valve weld cutting operation in real time.

[0094] Specifically, the cutting module includes a machine base 2, one side of which is connected to an automatic lifting mechanism 1 for adjusting the height of the device. The machine base 2 is provided with an electric drive mechanism 3 for changing the direction of movement and a clamping mechanism 41 for clamping the valve. The electric drive mechanism 3 is connected to and provides power for a ratchet automatic cutting mechanism 4 for automatically cutting the valve weld. The device realizes automatic control through the automatic lifting mechanism and the electric drive mechanism, reduces manpower requirements, reduces the labor intensity of workers, and improves production efficiency. Automated operation can provide more stable cutting parameters, such as cutting speed, depth and angle, thereby ensuring a smooth cutting edge and accurate size, reducing the need for subsequent processing. The adjustability of the cutting height and rotation direction means that the device can adapt to valves of different sizes and shapes, increasing its flexibility in different application scenarios. Due to the modular design, such as the automatic lifting mechanism and the ratchet automatic cutting mechanism, it can be independently maintained and upgraded, extending the service life of the entire device.

[0095] Furthermore, as a preferred embodiment of the present invention but not a limitation, the ratchet automatic cutting mechanism 4 includes a ratchet rotating mechanism 42 for unidirectional rotation, and a tool feeding mechanism 43 for feeding and cutting the valve weld is provided on the ratchet rotating mechanism 42. The ratchet mechanism can provide precise intermittent motion to ensure the stability and accuracy of the tool during the cutting process and avoid deviations that may be caused by continuous rotation. The clamping mechanism ensures that the valve is firmly fixed during the cutting process to prevent movement caused by vibration or cutting force, thereby ensuring cutting quality and safety. The tool feeding mechanism can accurately control the feed amount of the tool to avoid over-cutting or under-cutting, ensure consistent cutting depth, and reduce subsequent processing requirements. The automation characteristics of the entire ratchet automatic cutting mechanism reduce the operator's manual intervention, simplify the operating process, and reduce operating difficulty and error rate.

[0096] Furthermore, as a preferred embodiment of the present invention but not a limitation, the clamping mechanism 41 includes a first clamping module 411 for pushing and clamping the valve in the middle and a second clamping module 412 for clamping the valve on both sides, the first clamping module 411 and the second clamping module 412 are interconnected at the end away from the valve to form a clamping module rear end 413, the clamping module rear end 413 is provided with a clamping module groove 4120 for the second clamping module 412 to move, the clamping module rear end 413 is provided with an adjusting bolt 414 for adjusting the moving position of the first clamping module 411 and the second clamping module 412 to clamp the valve, the first clamping module is two cylindrical push rods, and the second clamping module is two arc-shaped push rods. The first clamping module pushes from the middle, and the second clamping module clamps from both sides to form a three-dimensional fixed frame to ensure that the valve will not be displaced during the cutting process. The positions of the first clamping module and the second clamping module can be fine-tuned by adjusting the bolts, so that the clamping mechanism can adapt to valves of different sizes and shapes to enhance versatility. The design of the cylindrical push rod and the arc push rod maximizes the contact area and distributes the pressure evenly, avoiding deformation or damage of the valve caused by excessive local stress.

[0097] Further, as a preferred embodiment of the present invention but not a limitation, the ratchet rotating mechanism 42 includes a ratchet wrench 421 for connecting to the electric drive mechanism 3 to perform a swinging motion, the ratchet wrench 421 is provided with a groove 4211 for connecting to the electric drive mechanism, and the ratchet wrench 421 is provided with a first ratchet tooth 4212 for driving the tool feeding mechanism 43 to rotate unidirectionally at one end close to the valve, and a ratchet wrench opening 4213 for facilitating the valve to enter the ratchet wrench 421. The ratchet wrench can perform a swinging motion through the power provided by the electric drive mechanism, and in a specific direction, intermittent unidirectional rotation is achieved through the ratchet mechanism. This design allows the tool to advance in only one direction during cutting, and not to cut during the return stroke, which can reduce tool wear and improve cutting efficiency.

[0098] Furthermore, as a preferred embodiment of the present invention but not a limitation, the ratchet rotating mechanism 42 also includes a ratchet rotating disc 422 loaded with a tool feeding mechanism 43 for rotation, and the ratchet rotating disc 422 includes a first rotating disc 4221 and a second rotating disc 4222 for convenient disassembly and installation of the cutting component, and a ratchet wrench 421 is engaged between the first rotating disc 4221 and the second rotating disc 4222 in a first rotation direction so that the tool feeding mechanism 43 on the ratchet rotating disc 422 rotates unidirectionally, and the ratchet wrench 421 is disengaged in a second rotation direction so that the tool feeding mechanism 43 on the ratchet rotating disc 422 rotates unidirectionally. The pawl mechanism 4220 of the structure 43 stops the rotation, engages with the first ratchet tooth 4212 in a first rotation direction so that the ratchet wrench 421 drives the ratchet rotating disk 422 to rotate, and disengages from the first ratchet tooth 4212 in a second rotation direction so that the ratchet rotating disk 422 stops rotating, a first pawl 4228 is provided on one side of the first pawl 4228 for locking the rotation of the ratchet rotating disk 422 when the ratchet rotating disk 422 stops, and a plurality of fasteners 4227 for connecting the first rotating disk 4221 and the second rotating disk 4222 are provided between the first rotating disk 4221 and the second rotating disk 4222. The first pawl 4228 is connected to a pawl column 4225 for adjusting the position of the first pawl 4228, and the outer periphery of the pawl column 4225 is provided with a pawl column groove 4226 on the first rotating disk 4221. The first pawl 4228 is provided with a first mounting hole 4331 for mounting an elastic member, and the second pawl 4229 is provided with a second mounting hole 4332 for mounting an elastic member. A plurality of mounting holes 4332 for connecting the first rotating disk 4221 and the second rotating disk 4222 are provided between the first rotating disk 4221 and the second rotating disk 4222. Fastener 4227, the fastener 4227 is a screw, and the first rotating disk 4221 is provided with a pawl groove 4251 for accommodating and positioning the pawl mechanism 4220 and a tool groove 4261 for accommodating and positioning the tool feed mechanism 43. The pawl engages the ratchet in the first rotation direction so that the tool feed mechanism can only rotate in a predetermined direction. Preferably, the first rotation direction is clockwise and the second rotation is counterclockwise to achieve one-way cutting. The design of the first rotating disk and the second rotating disk facilitates the disassembly and installation of the cutting parts, and the replacement and maintenance of the tool become faster.

[0099] Further, as a preferred embodiment of the present invention but not a limitation, a ratchet base 423 for mounting the ratchet rotating disc 422 together with the ratchet wrench 421 is provided on the outer periphery of the ratchet rotating disc 422, and the ratchet base 423 is provided with a second ratchet tooth 4232 of the same specification as the first ratchet tooth 4212 on the ratchet wrench 421, so that the ratchet pawl 4220 is engaged with each other in the first rotation direction for rotational cutting, and a safety insurance mechanism 4233 is provided on the ratchet base 423 to prevent self-starting when not in use, and the safety insurance mechanism 4233 includes a safety insurance mechanism for locking the ratchet wrench. The first ratchet tooth 4212 on the hand 421 moves the safety bolt 4234, and the safety bolt 4234 is connected with a safety pull ring 4235 for facilitating the rotation of the safety bolt 4234. The second ratchet tooth on the ratchet base matches the first ratchet tooth on the ratchet wrench, ensuring that the two synchronously engage the ratchet in the first rotation direction and perform rotary cutting together. This design improves the synchronization of rotation and the accuracy of cutting. The safety insurance mechanism improves operational safety. By locking the first ratchet tooth on the ratchet wrench, it prevents the equipment from accidentally starting when not in use or during transportation, thereby reducing potential injury risks. Further, as a preferred embodiment of the present invention but not limiting, the tool feeding mechanism 43 includes a cutting knife 431 for feeding and cutting, the cutting knife 431 is connected to a cutting knife mounting seat 432 for loading the cutting knife 431 for feeding and installed in the ratchet rotating disc 422, and the cutting knife mounting seat 432 is connected to a cutting knife adjusting member 433 for adjusting the feeding amount of the cutting knife 431, and the cutting knife adjusting member is a cutting knife bolt. The adjustment function of the cutting knife bolt enables the operator to accurately control the feeding amount of the cutting knife, that is, the cutting depth, to ensure the accuracy and consistency during the cutting process, and to avoid the problem of over-cutting or under-cutting.

[0100] Further, as a preferred embodiment of the present invention but not limiting, the automatic lifting mechanism 1 includes a lifting column 11 for telescopic movement, the lifting column 11 includes a first lifting column 111 fixedly installed at the bottom and a second lifting column 112 that can be telescoped into the first lifting column 111, a first bevel gear 114 for raising or lowering the second lifting column 112 is provided between the first lifting column 111 and the second lifting column 112, the first lifting column 111 is provided with a lifting column base 115 for installing a driving component at one end close to the first bevel gear 114, the lifting column base 115 is provided with a motor 116 for driving the second lifting column 112 to rise and fall, the driving motor 116 is connected to a main shaft 117 for transmitting rotational motion, the main shaft 117 is connected to a second bevel gear 118 meshing with the first bevel gear 114, and the second lifting column 112 is a spiral worm structure, so that the second lifting column can be driven to rise or fall when the first bevel gear rotates. The use of the second lifting column of the spiral worm structure in conjunction with the first bevel gear and the second bevel gear allows the lifting movement to be precisely controlled to achieve smooth and accurate height adjustment. The spiral worm structure has a high self-locking performance, which means that the lifting column can remain in the specified position even without power, and is suitable for carrying heavy objects. The bevel gear transmission between the first lifting column and the second lifting column provides high torque transmission efficiency, ensuring the stability and reliability of the lifting movement.

[0101] Further, as a preferred embodiment of the present invention but not a limitation, the electric drive mechanism 3 includes an electric drive housing 31, a second drive motor 32 for driving the components to rotate is provided inside the electric drive housing 31, the second drive motor 32 is connected to a first bevel gear 34 for rotation, the first bevel gear 34 is meshed with a second bevel gear 35 with a 90-degree angle, the second bevel gear 35 is connected to a first cylindrical spur gear 37 exposed on the electric drive housing 31, the first cylindrical spur gear 37 is meshed with a second cylindrical spur gear 38, connecting rods 39 are connected at both ends between the second cylindrical spur gear 38 and the ratchet wrench to make the ratchet wrench 421 swing when the second cylindrical spur gear 38 rotates, a slider 311 is connected to the connecting rod 39 at one end close to the ratchet wrench 421, and the slider 311 is installed in an arc groove 310 provided in the electric drive housing 31 to swing. The power generated by the second drive motor is efficiently converted into rotational motion through the 90-degree meshing of the first bevel gear and the second bevel gear, reducing energy loss. The cooperation between the second bevel gear and the first cylindrical spur gear realizes the change of power direction, so that the rotational motion can be output in a direction perpendicular to the motor shaft, increasing the layout flexibility of the mechanism. The combination of the connecting rod and the slider ensures the smoothness of the swinging motion and reduces vibration and noise during the motion. The design of the arc groove allows the slider to swing freely within a certain range. This design can adapt to the swing requirements of different amplitudes and improve the adaptability of the electric drive mechanism.

[0102] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0103] An embodiment of the present invention further provides a computer storage medium on which a computer program is stored. When the program is executed by a processor, a control method for automatically cutting a valve weld as described in the above embodiments is implemented.

[0104] Alternatively, if Fig.16 As shown, an embodiment of the present application further provides an electronic device 200, which can be the control device for automatically cutting valve welds mentioned in the present invention, including a processor 201, a memory 202, and a program or instruction stored in the memory 202 and executable on the processor 201. When the program or instruction is executed by the processor 201, each process of an embodiment of a control method for automatically cutting valve welds described above is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0105] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0106] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A control method for automatically cutting a valve weld, characterized in that: include: Perform pre-start; After the pre-start is passed, a confirmation cutting signal is generated; Based on the determined cutting signal, the cutting module cuts the valve weld; Real-time monitoring of valve weld cutting operations.

2. The control method according to claim 1, characterized in that: The pre-starting step comprises: Get the start signal; If a startup failure is detected, the device will be self-checked; If the startup is detected to be successful, the valve lifting operation is performed; Get valve cutting position information; If it is incorrect, perform the valve lifting and lowering operation again; If it is correct, perform pipe clamping operation; Get clamping status information; If it does not meet the standard, re-clamp the pipe; If the standard is met, a signal to confirm cutting is sent.

3. The control method according to claim 1, characterized in that: The step of cutting the valve weld includes: The motor drives the first bevel gear (114) to mesh with the second bevel gear (118), driving the second lifting column (112) to move up and down to a suitable height for cutting. The bolts of the clamping mechanism (41) are adjusted, and the two cylindrical push rods clamp the valve from the middle, and the two arc push rods clamp the valve from both sides; After the clamping is completed, the motor of the second electric drive mechanism (3) drives the connecting rod and the slider to move through the gear transmission system, thereby driving the ratchet wrench (421) to swing; When the ratchet wrench (421) rotates clockwise, the pawl clamps the first ratchet tooth (4212), and the ratchet rotates and drives the tool feeding mechanism (43) to cut; When the ratchet wrench (421) rotates counterclockwise, the pawl disengages and the ratchet rotating disc (422) stops rotating; The weld cutting is continued by the reciprocating motion of the ratchet wrench (421) until it is completed, and the cutter feed rate can be adjusted manually or electrically by the cutter adjustment member (433).

4. The control method according to claim 1, characterized in that: After the cutting module cuts the valve weld based on the determined cutting signal, the method includes: Immediately after cutting, perform weld status inspection; The weld state includes weld width, weld height, weld shape, weld bump, incomplete penetration, burn-through, pores, slag inclusions, and cracks; If the standard is met, the current weld is terminated and the next weld is awaited; If the standard is not met, judging whether the conditions for re-cutting the valve weld are met based on the weld state; If the conditions are met, cut the valve weld again; If the condition is not met, an alarm is sent and cutting of the valve weld is stopped.

5. The control method according to claim 1, characterized in that: The real-time monitoring of the valve welding seam cutting operation includes: Obtain authorization information and equipment operation data; confirming the operators who can enter the operation area according to the authorization information; Determine whether the operator has any potentially dangerous behavior; When the operator is too close to the danger zone, all active cutting operations will be suspended until safety is confirmed before restarting; According to the equipment operation data, determine the possible failure or out-of-control state of the equipment; Generate maintenance requirements or adjust operating parameters directly before possible failures or performance degradation are predicted.

6. A control device for automatically cutting valve welds, characterized in that: A one-way automatic valve weld cutting method as claimed in any one of claims 1 to 5, comprising: A pre-start module, used for pre-starting cutting; A determination module is used to generate a determination cutting signal after the pre-start is passed; A cutting module, used for cutting the valve weld based on the determined cutting signal; The monitoring module is used to monitor the cutting valve weld operation in real time.

7. A control device for automatically cutting valve welds according to claim 6, characterized in that: The cutting module comprises a machine base (2), one side of the machine base (2) being connected to an automatic lifting mechanism (1), the machine base (2) being provided with an electric drive mechanism (3) for changing the direction of movement and a clamping mechanism (41) for clamping the valve, the electric drive mechanism (3) being connected to and providing power for a ratchet automatic cutting mechanism (4) for automatically cutting the valve weld.

8. A control device for automatically cutting valve welds according to claim 7, characterized in that: The ratchet automatic cutting mechanism (4) comprises a ratchet rotating mechanism (42) for unidirectional rotation, a tool feeding mechanism (43) for feeding and cutting a valve weld is provided on the ratchet rotating mechanism (42), the ratchet rotating mechanism (42) comprises a ratchet wrench (421) for connecting to an electric drive mechanism (3) for swinging motion, a ratchet rotating disc (422) for loading the tool feeding mechanism (43) for unidirectional rotation is provided on the ratchet wrench (421), a ratchet base (423) for limiting the rotation of the ratchet rotating disc (422) together with the ratchet wrench (421) is provided on the outer periphery of the ratchet rotating disc (422), and a groove (423) for connecting to the electric drive mechanism (3) is provided on the ratchet wrench (421). 4211), the ratchet wrench (421) is provided with a first ratchet tooth (4212) at one end close to the valve for driving the tool feeding mechanism (43) to rotate unidirectionally, the first ratchet teeth (4212) surround a ratchet wrench opening (4213) in the ratchet wrench (421) so that the valve can enter, the ratchet base (423) is provided with a second ratchet tooth (4232), and a safety mechanism (4233) is provided on one side of the second ratchet tooth (4232) for preventing the device from being accidentally started, the safety mechanism (4233) comprises a safety locking piece (4234) for locking the movement of the ratchet wrench (421), and the safety locking piece (4234) is connected to a safety pull ring (4235) for facilitating the rotation of the safety locking piece (4234).

9. A control device for automatically cutting valve welds according to claim 8, characterized in that: The ratchet rotating disc (422) comprises a first rotating disc (4221) and a second rotating disc (4222) for facilitating the disassembly and installation of the cutting component. A ratchet mechanism (4220) is provided between the first rotating disc (4221) and the second rotating disc (4222) for engaging the ratchet wrench (421) in a first rotation direction so that the tool feeding mechanism (43) on the ratchet rotating disc (422) rotates in one direction and disengaging the ratchet wrench (421) in a second rotation direction so that the tool feeding mechanism (43) on the ratchet rotating disc (422) stops rotating. The ratchet mechanism (4220) comprises a ratchet mechanism (4220) for engaging the ratchet wrench (421) in a first rotation direction so that the tool feeding mechanism (43) on the ratchet rotating disc (422) rotates in one direction. The first ratchet teeth (4212) enable the ratchet wrench (421) to drive the ratchet rotating disk (422) to rotate, and the first ratchet pawl (4228) is disengaged from the first ratchet teeth (4212) in a second rotation direction to stop the ratchet rotating disk (422) from rotating. A second ratchet pawl (4229) is provided on one side of the first ratchet pawl (4228) for locking the rotation of the ratchet rotating disk (422) when the ratchet rotating disk (422) stops. A plurality of fasteners (4227) for connecting the first rotating disk (4221) and the second rotating disk (4222) are provided between the first rotating disk (4221) and the second rotating disk (4222).

10. The control device for automatically cutting valve welds according to claim 9, characterized in that The tool feeding mechanism (43) comprises a cutting knife (431) installed in a ratchet rotating disc (422) for feeding and cutting, the cutting knife (431) is connected to a cutting knife mounting seat (432) for loading the cutting knife (431) for feeding, and the cutting knife mounting seat (432) is connected to a cutting knife adjusting member (433) for adjusting the feeding amount of the cutting knife (431).

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