Dust removal system, welding workstation, welding dust removal method and readable storage medium

Abstract

The embodiment of the invention discloses a dust removal system, a welding workstation, a welding dust removal method and a readable storage medium, and belongs to the technical field of automatic control. The dust removal system comprises a control device and at least one welding dust removal device. Each welding dust removal device comprises a dust removal sub-device and a plurality of temperature sensors. The multiple temperature sensors are sequentially arranged at intervals along the two sides of the welding area. The temperature sensor is used for generating a temperature signal according to the detected arc temperature during welding; the dust removal sub-device is used for filtering smoke dust generated during welding; the control equipment is configured to determine the motion trail of the electric arc during welding according to the temperature signals generated by the plurality of temperature sensors; and controlling the dedusting sub-device to move based on the motion trail. The motion trail of the arc can be determined according to the signal of the temperature sensor, the dust removal sub-device is moved based on the motion trail of the arc, different workpieces can cover all welding areas for dust removal, and the dust removal efficiency of the dust removal system is improved.

Description

Technical Field

[0001] This application relates to the field of automation control technology, and particularly to a dust removal system, a welding workstation, a welding dust removal method, and a readable storage medium. Background Art

[0002] Welding is a manufacturing process technology for joining metals and thermoplastic materials such as plastics through high temperature or high pressure. When welding operations are carried out in a workshop, a large amount of fumes are usually generated. If operators inhale a large amount of fumes for a long time, it will cause harm to the operators' bodies. Usually, a dust removal system is set up in the workshop to filter the fumes generated during welding, so as to protect the health of operators and improve the welding quality.

[0003] However, during the actual welding operation process, the welding points change continuously according to the process requirements, resulting in the dust removal system being unable to effectively cover all welding areas for dust removal. The dust removal system usually can only perform dust removal at local positions, and the dust removal efficiency during welding is low. In addition, when the workpiece size is too large or the process is complex during welding, it will also cause the dust removal system to be unable to completely cover the welding area, and the low dust removal efficiency leads to serious air pollution in the workshop. Summary of the Invention

[0004] The purpose of the embodiments of this application is to provide a dust removal system, a welding workstation, a welding dust removal method, and a readable storage medium to solve the problem of low dust removal efficiency during welding in the prior art.

[0005] To achieve the above purpose, in the first aspect of this application, a dust removal system is provided. The dust removal system includes a control device and at least one welding dust removal device. Each welding dust removal device includes a dust removal sub-device and a plurality of temperature sensors;

[0006] The plurality of temperature sensors are arranged at intervals in sequence along both sides of the welding area;

[0007] The temperature sensors are used to generate temperature signals according to the detected arc temperature during welding;

[0008] The dust removal sub-device is used to filter the fumes generated during welding;

[0009] The control device is configured to:

[0010] Determine the movement trajectory of the arc during welding according to the temperature signals generated by the plurality of temperature sensors;

[0011] Based on the movement trajectory, control the movement of the dust removal sub-device.

[0012] In the embodiments of this application, the welding dust removal device further includes a cooling device;

[0013] The cooling device is arranged in the welding area, and a plurality of temperature sensors are arranged at intervals along both sides of the cooling device in sequence;

[0014] The intervals between the plurality of temperature sensors along the same side of the cooling device are the first intervals, and the intervals along both sides of the cooling device are the second intervals. Among them, the first interval is twice the second interval.

[0015] In the embodiments of the present application, according to the temperature signals generated by the plurality of temperature sensors, the movement trajectory of the arc during welding is determined, including a control device, including:

[0016] Respectively determine the change rate and signal amplitude of the temperature signals generated by each temperature sensor;

[0017] According to the change rate and signal amplitude of each temperature signal, determine the swing direction and swing speed of the arc during welding;

[0018] Based on the swing direction and swing speed of the arc, determine the movement trajectory of the arc during welding.

[0019] In the embodiments of the present application, according to the change rate and signal amplitude of each temperature signal, determine the swing direction and swing speed of the arc during welding, including:

[0020] Based on the reliability of the temperature signals generated by each temperature sensor, respectively determine the weight values of each temperature signal;

[0021] For each temperature signal, according to the change rate and signal amplitude of the temperature signal, determine the position distance between the arc and the temperature sensor during welding;

[0022] Based on all the weight values, perform a mean calculation on all the position distances to determine the position of the arc during welding;

[0023] Based on the position of the arc during welding, determine the swing direction and swing speed of the arc during welding.

[0024] In the embodiments of the present application, the dust removal system further includes a welding fixture and at least one infrared sensor;

[0025] Each infrared sensor is arranged on the welding fixture;

[0026] The welding fixture is used to clamp the workpiece to be welded;

[0027] The infrared sensor is used to generate an infrared detection signal according to the shielding condition of the welding equipment;

[0028] The control device is further configured to:

[0029] According to the infrared detection signal generated by the infrared sensor, determine the initial welding position;

[0030] Control the dust removal sub-device to move to the initial welding position.

[0031] In an embodiment of the present application, the dust removal system further includes a smoke sensor;

[0032] The smoke sensor is used to detect the smoke concentration;

[0033] The control device is further configured to:

[0034] Determine whether the smoke concentration detected by the smoke sensor is greater than the smoke concentration threshold;

[0035] When the state of the welding device is in the stop state and the smoke concentration is greater than the smoke concentration threshold, determine that the state of the welding device switches to the working state;

[0036] When the state of the welding device is in the working state and the smoke concentration is greater than the smoke concentration threshold, determine that the state of the welding device switches to the stop state.

[0037] In an embodiment of the present application, the dust removal system further includes a slide rail;

[0038] The slide rail is used to cooperate with the dust removal sub-device for movement.

[0039] The second aspect of the present application provides a welding workstation, including the above-mentioned dust removal system and at least one welding device;

[0040] The welding device is used to weld workpieces.

[0041] The third aspect of the present application provides a welding dust removal method, which is applied to the above-mentioned dust removal system. The welding dust removal method includes:

[0042] Determine the movement trajectory of the arc during welding according to the temperature signals generated by multiple temperature sensors;

[0043] Based on the movement trajectory, control the movement of the dust removal sub-device.

[0044] The fourth aspect of the present application provides a machine-readable storage medium, on which instructions are stored. The instructions are used to cause the machine to execute the above-mentioned welding dust removal method.

[0045] The present application provides a dust removal system, which includes a control device and at least one welding dust removal device. Each welding dust removal device includes a dust removal sub-device and a plurality of temperature sensors; the plurality of temperature sensors are sequentially arranged at intervals along both sides of the welding area; the temperature sensors are used to generate temperature signals according to the detected arc temperature during welding; the dust removal sub-device is used to filter the dust generated during welding; the control device is configured to: determine the movement trajectory of the arc during welding according to the temperature signals generated by the plurality of temperature sensors; and control the movement of the dust removal sub-device based on the movement trajectory. By covering all areas that the arc during welding may affect with a plurality of temperature sensors, the movement trajectory of the arc can be determined according to the signals of the temperature sensors. Moving the dust removal sub-device based on the arc movement trajectory can thus adapt to different workpieces to cover all welding areas for dust removal, improving the dust removal efficiency of the dust removal system and avoiding air pollution in the workshop.

[0046] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings are used to provide a further understanding of the embodiments of the present application, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the embodiments of the present application, but do not constitute a limitation to the embodiments of the present application. In the drawings:

[0048] Figure 1 Schematically shows a structural diagram of a dust removal system according to an embodiment of the present application;

[0049] Figure 2 Schematically shows an application example diagram of a temperature sensor according to an embodiment of the present application;

[0050] Figure 3 Schematically shows a structural diagram of a welding fixture according to an embodiment of the present application;

[0051] Figure 4 Schematically shows a structural diagram of a welding workstation according to an embodiment of the present application;

[0052] Figure 5 Schematically shows a flowchart of a welding dust removal method according to an embodiment of the present application.

[0053] DESCRIPTION OF THE REFERENCE NUMERALS

[0054] 1000 - Welding workstation, 100 - Dust removal system, 200 - Welding equipment, 300 - Adjustable cantilever beam, 400 - Welding platform; 110 - Control equipment, 120 - Welding dust removal equipment, 130 - Cooling equipment, 140 - Welding fixture, 150 - Infrared sensor, 160 - Smoke sensor, 170 - Slide rail, 410 - Welding area; 101 - Workpiece to be welded, 121 - Dust removal sub - device, 122 - Temperature sensor. Detailed implementation manners

[0055] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It should be understood that the specific implementation manners described herein are only for explaining and illustrating the embodiments of the present application, and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0056] It should be noted that the acquisition, transmission, storage, use, processing, etc. of data in the technical solutions of the present application all comply with the relevant regulations of national laws and regulations. In the embodiments of the present application, some existing solutions in the industry such as certain software, components, models, etc. may be mentioned. They should be regarded as exemplary. The purpose is only to illustrate the feasibility in the implementation of the technical solutions of the present application, but it does not mean that the applicant has already or necessarily used this solution.

[0057] It should be noted that if there are directional indications in the embodiments of the present application, the directional indications are only used to explain the relative position relationship, movement conditions, etc. between components in a specific posture. If this specific posture changes, the directional indications will also change accordingly.

[0058] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0059] Embodiment 1

[0060] Figure 1 Schematically shows a structural diagram of a dust removal system according to an embodiment of the present application. AsFigure 1 As shown in Figure 1 , an embodiment of the present application provides a dust removal system 100. The dust removal system 100 includes a control device 110 and at least one welding dust removal device 120. Each welding dust removal device 120 includes a dust removal sub-device 121 and a plurality of temperature sensors 122.

[0061] The plurality of temperature sensors 122 are sequentially arranged at intervals on both sides of the welding area 410.

[0062] The temperature sensor 122 is configured to generate a temperature signal according to the detected arc temperature during welding.

[0063] The dust removal sub-device 121 is configured to filter the dust generated during welding.

[0064] The control device 110 is configured to:

[0065] Determine the movement trajectory of the arc during welding according to the temperature signals generated by the plurality of temperature sensors 122.

[0066] Based on the movement trajectory, control the movement of the dust removal sub-device 121.

[0067] This embodiment provides a dust removal system 100, which includes a control device 110 and at least one welding dust removal device 120. Each welding dust removal device 120 corresponds to a welding device 200 for dust removal. Specifically, each welding dust removal device 120 includes a dust removal sub-device 121 and a plurality of temperature sensors 122. The welding area 410 is the area where the arc for workpiece welding operation is located. A plurality of temperature sensors 122 are arranged at preset intervals on both sides of the welding area 410 to cover all areas that the arc during welding may affect. When welding, the arc generates heat, and the temperature sensor 122 is configured to generate a temperature signal according to the detected arc temperature during welding. It should be understood that the number of temperature sensors 122 is set according to actual needs, and can be 8, 12, etc., which is not limited herein.

[0068] The dust removal sub-device 121 is configured to filter the dust generated during welding. The structure of the dust removal sub-device 121 is set according to actual needs, which is not limited herein. For ease of understanding, in the embodiment of the present application, the dust removal sub-device 121 includes a dust extraction pipeline, a dust removal hood and a driving device. The dust extraction pipeline and the dust removal hood are used together to filter the dust generated during welding, and the driving device is used to drive the movement of the dust removal sub-device 121.

[0069] During the welding operation, the position of the arc changes. That is, the movement trajectory of the arc causes the distribution range and intensity of the generated heat in the welding area 410 to change dynamically, resulting in differences in the temperature signals generated by multiple temperature sensors 122. The control device 110 is configured to: determine the swing direction and swing speed of the arc during welding based on the temperature signals generated by the multiple temperature sensors 122, and then determine the movement trajectory of the arc. Based on the movement trajectory, control the movement of the dust removal sub-device 121.

[0070] Based on the movement trajectory, the control device 110 determines the movement path of the dust removal sub-device 121 and generates a control instruction corresponding to the movement path to control the movement of the dust removal sub-device 121. The drive device in the dust removal sub-device 121 responds to the control instruction sent by the control device 110 and drives the dust removal sub-device 121 to move and remove dust along the movement path. By covering all areas that the arc may affect during welding with multiple temperature sensors 122, the movement trajectory of the arc can be determined based on the signals of the temperature sensors 122. Moving the dust removal sub-device 121 based on the arc movement trajectory can thus adapt to different workpieces to cover all welding areas 410 for dust removal, improving the dust removal efficiency and effect of the dust removal system 100 and avoiding air pollution in the workshop.

[0071] In an embodiment of the present application, the welding dust removal device 120 further includes a cooling device 130;

[0072] The cooling device 130 is disposed in the welding area 410, and multiple temperature sensors 122 are sequentially arranged at intervals on both sides of the cooling device 130;

[0073] The interval between multiple temperature sensors 122 on the same side of the cooling device 130 is the first interval, and the interval between the two sides of the cooling device 130 is the second interval, where the first interval is twice the second interval.

[0074] The welding dust removal device 120 further includes a cooling device 130, and the type of the cooling device 130 is set according to actual needs and is not limited herein. For ease of understanding, in an embodiment of the present application, the cooling device 130 is a water-cooled copper tube for rapid cooling. The cooling device 130 is disposed in the welding area 410 to prevent the welding area 410 from overheating, thereby preventing the welding device 200 from being damaged due to high temperature. At the same time, the cooling device 130 can also accelerate the cooling process, improve the welding efficiency, and avoid deformation or performance degradation of the welding material, thus improving the welding quality.

[0075] Please refer to Figure 2 , Figure 2 which schematically shows an application example diagram of a temperature sensor according to an embodiment of the present application.

[0076] A plurality of temperature sensors 122 are sequentially arranged at intervals along both sides of the cooling device 130. As a key component for heat conduction, the distribution range and intensity of the heat generated by the arc during the welding operation will undergo more obvious dynamic changes on the cooling device 130. The interval between the plurality of temperature sensors 122 along the same side of the cooling device 130 is the first interval, and the interval along both sides of the cooling device 130 is the second interval. Specifically, the interval of the plurality of temperature sensors 122 on the positive x-axis side along the y-axis is the first interval, the interval of the plurality of temperature sensors 122 on the negative x-axis side along the y-axis is also the first interval, and the interval along the y-axis between the temperature sensors 122 on the positive x-axis and the temperature sensors 122 on the negative x-axis is the second interval. The first interval is twice the second interval, so that the plurality of temperature sensors 122 are arranged in a zigzag pattern. During the actual welding operation, the arc will swing along the x-axis direction and also along the y-axis direction. The plurality of temperature sensors 122 form a plurality of detection points, and thus can more accurately detect the temperature changes caused by the change of the arc movement trajectory.

[0077] In the embodiments of the present application, according to the temperature signals generated by the plurality of temperature sensors 122, determining the movement trajectory of the arc during welding includes:

[0078] Respectively determining the change rate and signal amplitude of the temperature signals generated by each temperature sensor 122;

[0079] According to the change rate and signal amplitude of each temperature signal, determining the swing direction and swing speed of the arc during welding;

[0080] Based on the swing direction and swing speed of the arc, determining the movement trajectory of the arc during welding.

[0081] When welding, the arc generates heat, and the heat is conducted to the temperature sensor 122. Each temperature sensor 122 operates based on the principle of heat conduction, that is, sensitive components such as thermistors in the temperature sensor 122 change their electrical characteristics due to temperature changes, and thus generate temperature signals. Respectively determine the change rate and signal amplitude of the temperature signals generated by each temperature sensor 122.

[0082] When the arc position of the welding device 200 remains unchanged, the temperature change in the welding area 410 is relatively stable, so that the temperature signals detected by the temperature sensors 122 on both sides remain unchanged. When the arc position of the welding device 200 changes, due to the swing of the arc, the change rate and signal amplitude of each temperature signal show differences, and thus according to the change rate and signal amplitude of each temperature signal, determine the swing direction and swing speed of the arc during welding.

[0083] Specifically, when the electric arc swings along the movement trajectory, the temperature sensor 122 on the side of the welding area 410 close to the electric arc detects a rapid temperature rise, resulting in a relatively high change rate of the temperature signal and an increase in the signal amplitude. The temperature sensor 122 on the other side of the welding area 410 far from the electric arc detects a slowdown in temperature change, and even a downward trend in temperature, resulting in a relatively low change rate of the temperature signal and a decrease in the signal amplitude. According to the change rate and signal amplitude of each temperature signal, the amplitude and frequency of the electric arc swinging along the movement trajectory are determined. Furthermore, based on the swinging direction and swinging speed of the electric arc, the movement trajectory of the electric arc during welding is determined. By monitoring the movement trajectory of the electric arc swinging, even if the electric arc exhibits a complex movement trajectory, it can be ensured that the dust removal sub-device 121 is always at the optimal dust removal position for dust removal, and thus the dust removal sub-device 121 always covers the soot-affected area.

[0084] In the embodiment of the present application, determining the movement trajectory of the electric arc during welding according to the change rate and signal amplitude of each temperature signal includes:

[0085] Based on the reliability of the temperature signals generated by each temperature sensor 122, the weight value of each temperature signal is determined respectively;

[0086] For each temperature signal, according to the change rate and signal amplitude of the temperature signal, the position distance between the electric arc and the temperature sensor 122 during welding is determined;

[0087] Based on all the weight values, a mean calculation is performed on all the position distances to determine the position of the electric arc during welding;

[0088] Based on the position of the electric arc during welding, the swinging direction and swinging speed of the electric arc during welding are determined.

[0089] In this embodiment, the weighted average method is adopted. Based on the reliability of the temperature signals generated by each temperature sensor 122, the weight value of each temperature signal is determined respectively, and then weights are assigned to the signals according to the distance between the temperature sensor 122 and the electric arc position. Specifically, the signal reliability of the temperature sensor 122 located in the middle of the weld seam is high, and a high weight value can be assigned. The electric arc at the starting and ending positions of the weld seam is unstable, resulting in unstable temperature signals. The signal reliability of the temperature sensors 122 on both sides of the weld seam is low, and low weight values can be assigned. The higher the weight value of the temperature signal, the greater the influence on determining the movement trajectory, and the lower the weight value of the temperature signal, the smaller the influence on determining the movement trajectory.

[0090] For each temperature signal, based on the change rate and signal amplitude of the temperature signal, determine the positional distance between the arc and the temperature sensor 122 during welding. Calculate the mean value of all positional distances based on all weight values to determine the position of the arc during welding. For ease of understanding, in the embodiments of the present application, the number of multiple temperature sensors 122 is n, the value range of the weight value of the temperature signal generated by the temperature sensor 122 is greater than 0 and less than or equal to 1, and the sum of multiple weight values is 1. The obtained position of the arc is:

[0091]

[0092]

[0093] where x is the position of the arc, x i is the positional distance between the arc and the i-th temperature sensor 122, w i is the weight of the temperature signal corresponding to the i-th temperature sensor, and n is the total number of multiple temperature sensors 122.

[0094] By performing fusion processing on the temperature signals of multiple temperature sensors 122, determine the position of the arc during welding. Since the position of the arc during welding changes in real time, based on the direction of change of the position of the arc during welding, determine the swing direction and swing speed of the arc during welding. The temperature signals detected by the temperature sensor 122 may be interfered by factors such as temperature fluctuations and electromagnetic interference. Calculating the mean value of the temperature signals can smooth the interference and make the data more stable and reliable.

[0095] Based on the swing direction and swing speed of the arc, determine the movement trajectory of the arc, which can better adapt to the complexity of the arc swing, enabling the dust removal sub-device 121 to more accurately follow the movement path of the arc. More accurate position following of the welding device 200 and welding dust removal can improve the dust removal efficiency in the complex welding environment where the arc swings.

[0096] In the embodiments of the present application, the dust removal system 100 further includes a welding fixture 140 and at least one infrared sensor 150;

[0097] Each infrared sensor 150 is disposed on the welding fixture 140;

[0098] The welding fixture 140 is used to clamp the workpiece 101 to be welded;

[0099] The infrared sensor 150 is used to generate an infrared detection signal according to the occlusion condition of the welding device 200;

[0100] The control device 110 is further configured to:

[0101] Determine the initial welding position according to the infrared detection signal generated by the infrared sensor 150;

[0102] Control the dust removal sub-device 121 to move to the initial welding position.

[0103] Please refer to Figure 3 , Figure 3 which schematically shows the structural diagram of a welding jig according to an embodiment of the present application.

[0104] When starting the welding operation, the workpiece 101 to be welded is clamped by the welding jig 140. Each infrared sensor 150 is disposed on the welding jig 140, such that the infrared sensor 150 generates an infrared detection signal according to the shielding condition of the welding device 200 to locate the initial welding position of the welding device 200.

[0105] When the infrared sensor 150 is shielded by the welding device 200, an infrared detection signal is generated and sent to the control device 110. The control device 110 is further configured to receive the infrared detection signal generated by the infrared sensor 150. According to the infrared detection signal generated by the infrared sensor 150, the shielded infrared sensor 150 is determined, and then the initial welding position is determined. The control device 110 sends an instruction to the dust removal sub-device 121 based on the initial welding position to control the dust removal sub-device 121 to move to the initial welding position, thereby realizing dust coverage throughout the welding process and avoiding smoke and dust pollution.

[0106] In an embodiment of the present application, the dust removal system 100 further includes a smoke sensor 160;

[0107] The smoke sensor 160 is used to detect the smoke and dust concentration;

[0108] The control device 110 is further configured to:

[0109] Determine whether the smoke and dust concentration detected by the smoke sensor 160 is greater than the smoke and dust concentration threshold

[0110] In the case where the state of the welding device 200 is the stop state and the smoke and dust concentration is greater than the smoke and dust concentration threshold, determine that the state of the welding device 200 is switched to the working state;

[0111] In the case where the state of the welding device 200 is the working state and the smoke and dust concentration is greater than the smoke and dust concentration threshold, determine that the state of the welding device 200 is switched to the stop state.

[0112] The dust removal system 100 further includes a smoke sensor 160, which is used to detect the dust concentration to determine the start and stop of the welding torch of the welding device 200, and further determine the state of the welding device 200. Specifically, the control device 110 is further configured to receive the dust concentration detected by the smoke sensor 160 and determine whether the dust concentration detected by the smoke sensor 160 is greater than the dust concentration threshold. Since the dust concentration is the highest at the start and end of welding, the dust concentration threshold can be preset in advance. When the state of the welding device 200 is the stop state and the dust concentration is greater than the dust concentration threshold, it is determined that the state of the welding device 200 is switched to the working state. When it is determined that the welding device 200 starts welding, the dust removal sub-device 121 can be controlled to start dust removal.

[0113] When the state of the welding device 200 is the working state and the dust concentration is greater than the dust concentration threshold, it is determined that the state of the welding device 200 is switched to the stop state. When it is determined that the welding device 200 ends welding, the dust removal sub-device 121 can be controlled to stop dust removal to improve the operating efficiency of the dust removal system 100. It should be understood that the dust concentration threshold is set according to actual needs and is not limited herein.

[0114] In the embodiment of the present application, the dust removal system 100 further includes a slide rail 170;

[0115] The slide rail 170 is used to cooperate with the dust removal sub-device 121 for movement.

[0116] The control device 110 continuously receives the temperature signals of the temperature sensors 122, and then determines the swing direction and swing speed of the arc during the welding operation of the welding device 200 according to the signal amplitude changes and change rates of the temperature sensors 122 at different positions, and further determines the movement trajectory of the arc.

[0117] The control device 110 sends a control instruction to the driving device of the dust removal sub-device 121 according to the movement trajectory of the arc. The driving device responds to the instruction to drive the dust removal sub-device 121 to move, and cooperates with the dust removal sub-device 121 to move through the slide rail 170.

[0118] Assume that it is determined that the movement trajectory of the arc is to move to the left, then the dust removal sub-device 121 is moved to the left through the cooperation of the slide rail 170. The relative position between the dust removal sub-device 121 and the arc as the heat source remains stable, ensuring that the dust removal sub-device 121 is always at the best dust removal position for dust removal, improving the efficiency of the dust removal sub-device 121 and being able to filter the dust generated during welding to the greatest extent.

[0119] The present application provides a dust removal system 100. The dust removal system 100 includes a control device 110 and at least one welding dust removal device 120. Each welding dust removal device 120 includes a dust removal sub-device 121 and a plurality of temperature sensors 122. The plurality of temperature sensors 122 are sequentially arranged at intervals on both sides of the welding area 410. The temperature sensors 122 are configured to generate a temperature signal according to the detected arc temperature during welding. The dust removal sub-device 121 is configured to filter the dust generated during welding. The control device 110 is configured to: determine the movement trajectory of the arc during welding according to the temperature signals generated by the plurality of temperature sensors 122; and control the movement of the dust removal sub-device 121 based on the movement trajectory. By covering all areas that the arc during welding may affect with the plurality of temperature sensors 122, the movement trajectory of the arc can be determined according to the signals of the temperature sensors 122. Moving the dust removal sub-device 121 based on the arc movement trajectory can thus adapt to different workpieces to cover all welding areas 410 for dust removal, improving the dust removal efficiency of the dust removal system 100 and avoiding air pollution in the workshop.

[0120] Figure 4 Schematically shows a structural diagram of a welding workstation according to an embodiment of the present application. As Figure 4 shown, the embodiment of the present application provides a welding workstation 1000, including the above-mentioned dust removal system 100, and at least one welding device 200;

[0121] The welding device 200 is configured to weld workpieces.

[0122] The dust removal system 100 includes a control device 110 and at least one welding dust removal device 120. Each welding dust removal device 120 includes a dust removal sub-device 121 and a plurality of temperature sensors 122. The number of welding devices 200 and the number of welding dust removal devices 120 are both set according to actual needs and are not limited herein. For ease of understanding, in the embodiment of the present application, the number of welding devices 200 is the same as the number of welding dust removal devices 120, that is, both the number of welding devices 200 and the number of welding dust removal devices 120 are 2, to avoid interference during the operation of the welding workstation 1000. One welding dust removal device 120 is provided corresponding to each welding device 200 for dust removal.

[0123] When the welding device 200 is in a stopped state, the control device 110 controls the welding dust removal device 120 to stop operating. When the welding device 200 is in an operating state, the welding device 200 is used to weld workpieces, and the control device 110 controls the welding dust removal device 120 to operate. The control device 110 determines the movement trajectory of the arc during welding based on the temperature signals generated by multiple temperature sensors 122; based on the movement trajectory, it controls the movement of the dust removal sub-device 121. Ensure that the dust removal sub-device 121 always performs dust removal at the optimal dust removal position, improve the efficiency of the dust removal sub-device 121, and thus be able to filter out the dust generated during welding to the greatest extent.

[0124] The dust removal system 100 may further include other device structures, and the other device structures are set according to actual requirements. For ease of understanding, in the embodiments of the present application, the other device structures include an adjustable cantilever beam 300 and a welding platform 400. The control device 110 is connected to the dust removal sub-device 121 through the adjustable cantilever beam 300, and the position of the dust removal sub-device 121 can be fixed through the adjustable cantilever beam 300. The welding platform 400 is used to provide a welding area 410 required for welding.

[0125] Embodiment 2

[0126] Figure 5 Schematically shows a flowchart of a welding dust removal method according to an embodiment of the present application. As Figure 5 shown, the embodiments of the present application provide a welding dust removal method, and the welding dust removal method may include the following steps.

[0127] S510, determine the movement trajectory of the arc during welding based on the temperature signals generated by multiple temperature sensors;

[0128] During welding operations, the position of the arc changes, that is, the movement trajectory of the arc causes the distribution range and intensity of the heat generated in the welding area to change dynamically, resulting in differences in the temperature signals generated by multiple temperature sensors. Based on the temperature signals generated by multiple temperature sensors, determine the swing direction and swing speed of the arc during welding, and then determine the movement trajectory of the arc.

[0129] S520, control the movement of the dust removal sub-device based on the movement trajectory.

[0130] Based on the movement trajectory, determine the movement path of the dust removal sub-device, and generate a control instruction corresponding to the movement path to control the movement of the dust removal sub-device. Move the dust removal sub-device based on the arc movement trajectory, and thus be able to adapt to different workpieces to cover all welding areas for dust removal, improve the dust removal efficiency and dust removal effect of the dust removal system, and avoid air pollution in the workshop.

[0131] In the embodiments of the present application, determining the movement trajectory of the arc during welding based on the temperature signals generated by multiple temperature sensors includes:

[0132] Determine the change rate and signal amplitude of the temperature signals generated by each temperature sensor respectively;

[0133] Determine the movement trajectory of the arc during welding according to the change rate and signal amplitude of each temperature signal.

[0134] In the embodiments of the present application, determining the movement trajectory of the arc during welding according to the change rate and signal amplitude of each temperature signal includes:

[0135] Based on the reliability of the temperature signals generated by each temperature sensor, determine the weight value of each temperature signal respectively;

[0136] According to the change rate, signal amplitude and weight value of each temperature signal, determine the swing direction and swing speed of the arc during welding;

[0137] Based on the swing direction and swing speed of the arc, determine the movement trajectory of the arc.

[0138] In the embodiments of the present application, the welding dust removal method further includes:

[0139] Determine the initial welding position according to the infrared detection signal generated by the infrared sensor;

[0140] Control the dust removal sub-device to move to the initial welding position.

[0141] In the embodiments of the present application, the welding dust removal method further includes:

[0142] When the state of the welding equipment is in the stop state and the dust concentration is greater than the dust concentration threshold, determine that the state of the welding equipment is switched to the working state;

[0143] When the state of the welding equipment is in the working state and the dust concentration is greater than the dust concentration threshold, determine that the state of the welding equipment is switched to the stop state.

[0144] The embodiments of the present application also provide a machine-readable storage medium, on which instructions are stored, and the instructions are used to make the machine execute the above-mentioned welding dust removal method.

[0145] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system or a computer program product. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0146] This application is described with reference to the flowcharts and / or block diagrams of a dust removal system, device (system), and computer program product according to embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing device produce a means for implementing the functions specified in one or more of the flows Figure 1 one or more of the flows and / or blocks Figure 1 or a means for implementing the functions specified in one or more of the blocks.

[0147] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory produce a manufactured article including an instruction means that implements the functions specified in one or more of the flows Figure 1 one or more of the flows and / or blocks Figure 1 or a means for implementing the functions specified in one or more of the blocks.

[0148] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more of the flows Figure 1 one or more of the flows and / or blocks Figure 1 or a means for implementing the functions specified in one or more of the blocks.

[0149] In a typical configuration, a computing device includes one or more processors (CPUs), an input / output interface, a network interface, and memory.

[0150] The memory may include non-permanent memory in the form of computer-readable media, random access memory (RAM), and / or non-volatile memory such as read-only memory (ROM) or flash memory (flash RAM). The memory is an example of computer-readable media.

[0151] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0152] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0153] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A dust removal system, characterized in that, The dust removal system includes a control device and at least one welding dust removal device, and each welding dust removal device includes a dust removal sub-device and a plurality of temperature sensors; The plurality of temperature sensors are sequentially arranged at intervals on both sides of the welding area; The temperature sensors are used to generate temperature signals according to the detected arc temperature during welding; The dust removal sub-device is used to filter the soot generated during welding; The control device is configured to: Determine the movement trajectory of the arc during welding according to the temperature signals generated by the plurality of temperature sensors; Based on the movement trajectory, control the movement of the dust removal sub-device.

2. The dust removal system according to claim 1, wherein The welding dust removal device further includes a cooling device; The cooling device is arranged in the welding area, and the plurality of temperature sensors are sequentially arranged at intervals on both sides of the cooling device; The interval of the plurality of temperature sensors on the same side of the cooling device is a first interval, and the interval on both sides of the cooling device is a second interval, wherein the first interval is twice the second interval.

3. The dust removal system according to claim 1, wherein The determining the movement trajectory of the arc during welding according to the temperature signals generated by the plurality of temperature sensors includes: Respectively determine the change rate and signal amplitude of the temperature signals generated by each temperature sensor; According to the change rate and signal amplitude of each temperature signal, determine the swing direction and swing speed of the arc during welding; Based on the swing direction and swing speed of the arc, determine the movement trajectory of the arc during welding.

4. The dust removal system according to claim 3, characterized in that, The determining the swing direction and swing speed of the arc during welding according to the change rate and signal amplitude of each temperature signal includes: Based on the reliability of the temperature signals generated by each temperature sensor, respectively determine the weight values of each temperature signal; For each temperature signal, determine the position distance between the arc and the temperature sensor according to the change rate and signal amplitude of the temperature signal; Based on all the weight values, perform a mean calculation on all the position distances to determine the position of the arc during welding; Based on the position of the arc during welding, determine the swing direction and swing speed of the arc during welding.

5. The dust removal system according to claim 1, characterized in that The dust removal system further includes a welding fixture and at least one infrared sensor; Each infrared sensor is arranged on the welding fixture; The welding fixture is used to clamp the workpiece to be welded; The infrared sensor is used to generate an infrared detection signal according to the shielding condition of the welding equipment; The control device is further configured to: Determine the initial welding position according to the infrared detection signal generated by the infrared sensor; Control the dust removal sub-device to move to the initial welding position.

6. The dust removal system according to claim 1, wherein, The dust removal system further includes a smoke sensor; The smoke sensor is used to detect the soot concentration; The control device is further configured to: Determine whether the soot concentration detected by the smoke sensor is greater than the soot concentration threshold; In the case where the state of the welding equipment is the stop state and the soot concentration is greater than the soot concentration threshold, determine that the state of the welding equipment is switched to the working state; In the case where the state of the welding equipment is the working state and the soot concentration is greater than the soot concentration threshold, determine that the state of the welding equipment is switched to the stop state.

7. The dust removal system according to claim 1, wherein The dust removal system further includes a slide rail; The slide rail is used to cooperate with the dust removal sub-device for movement.

8. A welding workstation, characterized in that, It includes the dust removal system according to any one of claims 1 to 7, and at least one welding device; The welding device is used for welding workpieces.

9. A welding dust removal method, characterized in that, Applied to the dust removal system according to any one of claims 1 to 7, the welding dust removal method includes: Determine the movement trajectory of the arc during welding according to the temperature signals generated by multiple temperature sensors; Based on the movement trajectory, control the movement of the dust removal sub-device.

10. A machine-readable storage medium, characterized in that, Instructions are stored on the machine-readable storage medium, and the instructions are used to cause the machine to execute the welding dust removal method according to claim 9.

Images