A welding gas flow management system

Abstract

The embodiment of the present application relates to a kind of welding gas flow management system, welding gas flow management system includes: welding equipment;Welding gas flow control device, welding gas flow control device is connected with welding equipment, welding gas flow control device is used to control the welding gas flow of welding equipment according to welding parameter, and generate welding data in the welding process of welding equipment;Terminal and server, server is respectively connected with terminal and welding gas flow control device communication;Server is used to receive welding data from welding gas flow control device, and welding data is transmitted to terminal, and receive welding parameter from terminal, and welding parameter is transmitted to welding gas flow control device;Terminal is used to set welding parameter, and welding parameter is transmitted to server, and receive welding data from server, and display welding data. By the above-mentioned mode, intelligent specification welding production can be realized, to reduce welding cost, improve welding production quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a welding gas flow management system. BACKGROUND

[0002] With the continuous development of welding technology, in order to save welding cost and improve welding quality, various welding technologies are constantly invented, among which, gas shielded welding as an energy-saving, efficient and high-quality welding technology has been valued by countries around the world since it was invented. With the increasingly wide application of gas shielded welding in various fields, such as engineering machinery, petrochemical industry and steel construction, the requirements for welding cost and welding quality of gas shielded welding are also increasing.

[0003] At present, the management of welding gas flow in the general gas shielded welding process generally uses extensive management, that is, the same gas flow is used for welding regardless of the size of the welding current. This uncontrolled gas shielded welding is easy to cause a large amount of waste of protective gas and increase the welding cost. At the same time, when the protective gas is insufficient, the welding process will not stop, which is easy to reduce the welding quality. Moreover, the traditional gas flow control method is adjusted by welders according to experience, and various welding quality problems caused by inappropriate gas flow size often occur. SUMMARY

[0004] In order to solve the above technical problems, the embodiment of the present application provides a welding gas flow management system, which can realize intelligent and standardized welding production, thereby reducing the welding cost and improving the welding production quality.

[0005] To achieve the above purpose, the present application provides a welding gas flow management system, which comprises:

[0006] a welding device;

[0007] a welding gas flow control device connected with the welding device, the welding gas flow control device being used for controlling the welding gas flow of the welding device according to welding parameters and generating welding data in the welding process of the welding device;

[0008] a terminal and a server, the server being in communication connection with the terminal and the welding gas flow control device respectively;

[0009] the server being used for receiving the welding data from the welding gas flow control device and transmitting the welding data to the terminal, and receiving the welding parameters from the terminal and transmitting the welding parameters to the welding gas flow control device;

[0010] The terminal is configured to set the welding parameters, transmit the welding parameters to the server, receive the welding data from the server, and display the welding data.

[0011] In some embodiments, the welding gas flow control device comprises a current detection unit, a gas flow adjustment unit, a gas flow detection unit, and a control processing unit, the control processing unit being connected to the current detection unit, the gas flow detection unit, and the gas flow adjustment unit, respectively.

[0012] The current detection unit is configured to connect to the welding equipment to detect a welding current value of the welding equipment.

[0013] The gas flow detection unit is configured to detect a welding gas flow at an outlet of the gas flow adjustment unit.

[0014] The control processing unit is configured to control the gas flow adjustment unit according to the welding current value and the welding gas flow.

[0015] In some embodiments, the welding gas flow control device further comprises a communication unit electrically connected to the control processing unit, the control processing unit being configured to receive the welding parameters and send the welding data through the communication unit.

[0016] In some embodiments, the control processing unit is specifically configured to:

[0017] obtain a current welding current value of the welding equipment;

[0018] obtain a current target welding gas flow of the welding equipment based on the current welding current value and the welding parameters;

[0019] adjust the gas flow adjustment unit based on the current target welding gas flow.

[0020] In some embodiments, the welding data comprises a welding current value, a welding gas flow, and a device identification code of the welding equipment.

[0021] In some embodiments, the welding data further comprises a welding duration and a device usage rate.

[0022] The welding duration is a total time during which the welding current value is greater than 0 within a first preset duration.

[0023] The device usage rate is a ratio of the welding duration to a welding equipment up time.

[0024] In some embodiments, the server is configured to:

[0025] obtain a target welding gas flow of the welding equipment at the current moment based on the welding current value at any moment and the welding parameter corresponding to the welding current value;

[0026] calculate a difference between the welding gas flow at the current moment and the target welding gas flow at the current moment;

[0027] if the difference corresponding to any moment is greater than a preset threshold value within a second preset time length, send a gas flow alarm indication to the terminal.

[0028] In some embodiments, the server is further configured to:

[0029] if the welding current value is greater than or equal to a preset current threshold value, send a current alarm indication to the terminal.

[0030] In some embodiments, the terminal is further configured to display alarm content and issue an alarm prompt according to the gas flow alarm indication or the current alarm indication.

[0031] In some embodiments, the server is further configured to:

[0032] store the welding current value and the time corresponding to the welding current value;

[0033] store the welding gas flow and the time corresponding to the welding gas flow.

[0034] The present application provides a welding gas flow management system, in which welding parameters are set by a terminal and transmitted to a server, the server receives the welding parameters and then sends them to a welding gas flow control device, which controls the welding gas flow of a welding equipment according to the welding parameters; then the welding gas flow control device generates welding data during the welding process of the welding equipment, the server receives the welding data from the welding gas flow control device and transmits the welding data to the terminal, and the terminal receives the welding data from the server and displays the welding data, realizing intelligent and standardized welding production, thereby reducing welding cost and improving welding production quality. BRIEF DESCRIPTION OF DRAWINGS

[0035] One or more embodiments are illustrated by way of example in the drawings that are not intended to be limiting of the embodiments so as to illustrate exemplary principles of the embodiments. The same reference numbers in different drawings identify the same elements or aspects of embodiments. Drawings are not necessarily to scale and certain features can be exaggerated to show details, which would be the case, for example, with respect to the schematic illustrations.

[0036] Figure 1 is a structural schematic diagram of the welding gas flow management system provided by the embodiments of the present application;

[0037] Figure 2This is a schematic diagram of the structure of a control and processing device provided in an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the welding gas flow control device provided in an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of a welding gas flow control device provided in another embodiment of the present invention;

[0040] Figure 5 This is a schematic diagram of the structure of a welding gas flow control device provided in another embodiment of the present invention;

[0041] Figure 6 This is a schematic flowchart of the control processing unit performing the welding gas flow management method provided in an embodiment of the present invention;

[0042] Figure 7 This is a schematic diagram of the welding gas flow management system provided in another embodiment of the present invention. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] This invention provides a welding gas flow management system, such as... Figure 1 As shown, the welding gas flow control system includes welding equipment 10, welding gas flow control device 20, server 30 and terminal 40. The welding equipment 10 is connected to the welding gas flow control device 20, and the server 30 is communicatively connected to both the terminal 40 and the welding gas flow control device 20.

[0045] Specifically, the welding gas flow control device 20 is used to control the welding gas flow of the welding equipment 10 according to the welding parameters, and to generate welding data during the welding process of the welding equipment; the server 30 is used to receive welding data from the welding gas flow control device 20 and transmit the welding data to the terminal 40, and to receive welding parameters from the terminal 40 and transmit the welding parameters to the welding gas flow control device 20; the terminal 40 is used to set welding parameters and transmit the welding parameters to the server 30, and to receive welding data from the server 30 and display the welding data.

[0046] Taking the terminal 40 as an example, the system WEB end or the mobile phone APP is described. On the system WEB end or the mobile phone APP end, the current segment welding gas flow requirement range and the welding gas flow size matched with each current segment and other parameters are set according to the process requirements, then the set parameters are issued to the data service unit through the application service and interface unit in the server 30, and then the data service unit issues the parameters to the welding gas flow control device 20. Then, the welding gas flow control device 20 controls the welding equipment 10 to execute the welding process according to the received welding parameters. Conversely, the welding gas flow control device 20 can also feed back the actual current or actual gas flow and other data detected in the welding process of the welding equipment 10 to the system WEB end or the mobile phone APP end through the server 30 through the data transmission route opposite to the above, so that the system WEB end or the mobile phone APP end can monitor the welding process in real time.

[0047] Figure 2 is a structural schematic diagram of a control processing device provided by an embodiment of the present application, please refer to Figure 2 The control processing device comprises at least one processor 51, a communication bus 52, a memory 53 and at least one communication interface 54.

[0048] The processor 51 can be a general central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.

[0049] The communication bus 52 can comprise a channel for transmitting information between the above-mentioned components.

[0050] The memory 53 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM), or other type of dynamic storage device that can store information and instructions for execution by the processor 51, an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disk storage, a magnetic disk storage or other magnetic storage devices, or any other medium capable of storing instructions or data that can be accessed by a computer, without limitation.

[0051] The memory 53 can be a stand-alone device or can be integral to the processor 51. The memory 53 can also be integral to the processor 51. The communication interface 54 can use any transceiver-type device to communicate with other devices or communication networks, such as an Ethernet network, a Radio Access Network (RAN), a Wireless Local Area Networks (WLAN), etc. In one embodiment, the processor can include one or more CPUs, such as the processor 51 shown in FIG. 1A. Figure 3 The processor 51 shown in FIG. 1A includes a CPU 0 or the processor 55 includes CPUs 1 and 2. In one embodiment, the control processing device can include multiple processors, such as the processors 51 and 55 shown in FIG. 1B. Each of these processors can be a single-CPU or a multi-CPU. The processor can refer to one or more devices, circuits, and / or processing cores for processing data, such as computer program instructions. The control processing device can be a general purpose computer device or a special purpose computer device. In one embodiment, the control processing device can be a desktop computer, a laptop computer, a network server, a Personal Digital Assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, or an embedded device. The embodiments of the present application do not limit the type of control processing device. The memory 53 is configured to store program code 531 for implementing the embodiments of the present application. The processor 51 is configured to execute the program code 531 stored in the memory 53. Figure 2 The processor can refer to one or more devices, circuits, and / or processing cores for processing data, such as computer program instructions. The control processing device can be a general purpose computer device or a special purpose computer device. In one embodiment, the control processing device can be a desktop computer, a laptop computer, a network server, a Personal Digital Assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device, or an embedded device. The embodiments of the present application do not limit the type of control processing device. The memory 53 is configured to store program code 531 for implementing the embodiments of the present application. The processor 51 is configured to execute the program code 531 stored in the memory 53.

[0052] In an embodiment, as shown in Figure 3 The welding gas flow control device 20 comprises a current detecting unit 21, a gas flow adjusting unit 22, a gas flow detecting unit 23 and a control processing unit 24, wherein the control processing unit 24 is connected with the current detecting unit 21, the gas flow detecting unit 23 and the gas flow adjusting unit 22 respectively. Specifically, the current detecting unit 21 is used to connect the welding equipment 10 to detect the welding current value of the welding equipment 10; the gas flow detecting unit 23 is used to detect the welding gas flow of the gas outlet of the gas flow adjusting unit 22; and the control processing unit 24 controls the gas flow adjusting unit 22 according to the welding current value and the welding gas flow.

[0053] In practical application, first of all, an external gas supply device is needed to provide various gases required for welding, such as a gas storage tank, etc. The gas enters the gas inlet of the gas flow adjusting unit 22, and the gas flow adjusting unit 22 controls the gas flow of the gas, so that the gas flow in actual welding is a controllable gas flow. The gas flow detecting unit 23 needs to detect the output gas flow of the gas flow adjusting unit 22 in real time, that is, to detect the gas flow in actual welding in real time, and then transmit the detected gas flow in actual welding to the control processing unit 24, while the current detecting unit 21 also transmits the detected welding current value to the control processing unit 24, and then the control processing unit 24 outputs an adjusting signal according to the received gas flow in actual welding and the welding current value to adjust the gas flow of the output port of the gas flow adjusting unit, that is, to adjust the gas flow for welding.

[0054] In another embodiment, please refer to Figure 3 The welding gas flow control device 20 further comprises a communication unit 25, which is electrically connected with the control processing unit 24, and the control processing unit 24 receives welding parameters and sends welding data through the communication unit 25.

[0055] In an embodiment, the welding parameters are welding current ranges and preset gas flows corresponding to each welding current range, and the welding data are welding current values and welding gas flows.

[0056] For example, assuming that a mobile phone is used as a terminal, the server 30 can be connected to the communication unit 25 in the welding gas flow control device 20 through WIFI or Bluetooth. In this case, the parameters can be first transmitted from the mobile phone to the server, and then uploaded to the welding gas flow control device 20 through the server 30. Specifically, the welding parameters, including the welding current range and the corresponding preset gas flow for each welding current range, are first set in the mobile phone, and then the server 30 receives the welding parameters and transmits them to the welding gas flow control device 20 through WIFI or Bluetooth. Finally, the welding gas flow control device 20 performs the welding process according to the welding parameters. In other embodiments, the welding gas flow control device 20 can also send the welding data, such as the detected welding current value and welding gas flow, to the server 30 through the communication unit 25, and then transmit them to the mobile phone through the server 30 for display. In this way, the user can easily know the current welding situation. In another example, a touch screen can be used to set and display the parameters, and the welding gas flow control device 20 can be directly connected to the server 30 through a network cable. The data transmission process is similar to the above process, which is easily understood by those skilled in the art and will not be described here.

[0057] Optionally, as shown in Figure 3 The welding gas flow control device 20 further comprises a storage unit 26 electrically connected to the control processing unit 24, and the storage unit 26 is configured to store the welding parameters.

[0058] During the welding process, the welding parameters can be saved in the storage unit 18 when the processing is interrupted due to other tasks or power failure, so that the parameters do not need to be set again when the current task is resumed, thereby improving the processing efficiency.

[0059] In an embodiment, as shown in Figure 3 The welding gas flow control device 20 further comprises a power supply unit 27 configured to provide working voltage for the welding gas flow control device 20.

[0060] Specifically, the power supply unit 27 provides the required working voltage for each unit in the welding gas flow control device 20, such as the control processing unit 24. It can be understood that the power supply unit 27 can be any device capable of providing electrical energy, for example, lithium batteries, lithium batteries, etc.

[0061] In an embodiment, in order to realize intelligent adjustment of the size of the welding gas flow, the gas flow adjusting unit 22 is an adjustable gas flow valve.

[0062] The control processing unit 24 determines the corresponding welding gas flow according to the current welding current value, calculates the required adjustment amount of the adjustable gas flow valve according to the welding gas flow, and sends the adjustment amount to the adjustable gas flow valve. The adjustable gas flow valve automatically adjusts the size of the welding gas flow according to the received adjustment amount, such as by adjusting the opening size of the adjustment valve in the adjustable gas flow valve to adjust the size of the welding gas flow. Of course, the gas flow adjustment unit can also be other components, such as a proportional valve.

[0063] In another embodiment, the gas flow detection unit is a gas flow detector.

[0064] In order to improve the accuracy of detecting the welding gas flow, the gas flow detector needs to be able to monitor the size of the welding gas flow in the welding process of the welding machine in real time, so as to provide a basis for the user to judge whether the welding gas flow is abnormal.

[0065] Optionally, please refer to Figure 1 Referring to Figure 5 The current detection unit 21 includes a current calculation component 211 and a current interface 212. The current calculation component 211 is electrically connected with the current interface 212. The current interface 212 is used to collect the welding current of the welding device 10. The current calculation component 211 is used to calculate the welding current value of the welding current.

[0066] Optionally, the current interface 212 is used to connect the power output line of the welding device.

[0067] Optionally, the current interface 212 is a current Hall sensor.

[0068] Taking the current Hall sensor as the current interface 212 for description, by connecting the current Hall sensor to the power output line of the welding device 10, by passing current through the control current end of the Hall element, a Hall potential will be generated in the direction perpendicular to the current and the magnetic field (i.e. between the Hall output ends), and then the Hall potential is transmitted to the current calculation component 211. In an embodiment, the current calculation component 211 can adopt a single-chip microcomputer. The single-chip microcomputer can calculate the welding current value according to the received voltage value.

[0069] It should be noted that the current interface 212 can be any element that can collect current, such as a current transformer, etc. Similarly, the current calculation component can be any element that can calculate the current value. For example, if the current interface 212 selects a current transformer, the current transformer only converts the large current at the welding device end into a small current, and then a current meter or a sensitive ammeter can be used to measure the welding current value.

[0070] And Figure 3 Or Figure 4 OrFigure 5 or Figure 7 The control processing unit 24 shown in the above embodiments can be implemented by Figure 2 The control processing device can implement the gas flow management method executed by the control processing unit 24 of any of the embodiments of the present application by the processor 51 and the program code 531 in the memory 53, for example, the control processing unit 24 receives the welding parameters through the communication unit 25, and outputs the control signal after analyzing and processing the welding parameters, to control the output welding gas flow of the gas flow adjusting unit 22.

[0071] It should be understood that the hardware structure of the welding gas flow control device shown in the above embodiments is only an example, and the welding gas flow control device can have more or less components than those shown in the figures, can combine two or more components, or can have a different component configuration, and various components shown in the figures can be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application specific integrated circuits. For example, in some embodiments, the gas flow detecting unit 23 can be directly integrated inside the gas flow adjusting unit 22; for another example, in some other embodiments, the server 30 and the terminal 40 are replaced by a display screen that can receive wireless signals, and the welding data sent by the welding gas flow control device is received by the display screen, and the alarm is displayed on the display screen. Figure 3 or Figure 4 or Figure 5 It should be understood that the hardware structure of the welding gas flow control device shown in the above embodiments is only an example, and the welding gas flow control device can have more or less components than those shown in the figures, can combine two or more components, or can have a different component configuration, and various components shown in the figures can be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application specific integrated circuits. For example, in some embodiments, the gas flow detecting unit 23 can be directly integrated inside the gas flow adjusting unit 22; for another example, in some other embodiments, the server 30 and the terminal 40 are replaced by a display screen that can receive wireless signals, and the welding data sent by the welding gas flow control device is received by the display screen, and the alarm is displayed on the display screen.

[0072] Figure 6 is a flowchart of the gas flow management method executed by the control processing unit according to an embodiment of the present application, which can be executed by the welding gas flow control device 20 shown in Figure 1 or Figure 3 or Figure 4 or Figure 5 The welding gas flow control device 20 shown in the above embodiments, please refer to Figure 6 The steps include:

[0073] 241: Obtain the current welding current value of the welding equipment 10.

[0074] The current detecting unit 21 mentioned above will collect the actual current value of the welding equipment 10 in real time and transmit it to the control processing unit 24, of course, other ways can also be used to collect the actual current value of the welding equipment 10, such as setting a sampling resistance, detecting the voltage on the sampling resistance, and then calculating the actual current value.

[0075] 242: Based on the current welding current value and the welding parameters, obtain the current target welding gas flow of the welding equipment 10.

[0076] 243: adjusting the gas flow adjusting unit based on the current target welding gas flow.

[0077] The welding parameter refers to a process parameter used in the welding process, which generally needs to include a target welding gas flow required for welding, and a welding current corresponding to the target welding gas flow. By detecting the welding current value when the welding equipment 10 is actually working, the target welding gas flow can be obtained from the corresponding relationship. Then the welding gas flow control device 20 needs to adjust the welding gas flow supplied to the welding equipment 10 to the target welding gas flow, which matches the setting of the process parameter, so as to have better welding quality and reduce welding quality problems such as too many weld pores or unstable arc caused by inappropriate gas flow size.

[0078] In actual application, after obtaining the welding current, the control processing unit 24 can derive the welding gas flow required for welding under the process according to the welding current value, and then the control processing unit 24 controls the gas flow adjusting unit 22 according to the required welding gas flow and the current actual welding gas flow, thereby realizing the adjustment of the actual welding gas flow. For example, a PID algorithm can be set to control the current actual welding gas flow according to the difference between the required welding gas flow and the current actual welding gas flow, so that the actual welding gas flow can be quickly adjusted to the required welding gas flow. Thus, the welding production quality can be ensured from the source of gas flow control, and the problem of gas waste caused by excessive gas flow can be avoided, the resource waste of protective gas in welding production is reduced, and the production cost of protective gas in the application of gas shielded welding is reduced.

[0079] Further, the server 30 can process the welding data when receiving the welding data.

[0080] It can be understood that Figure 3 or Figure 4 or Figure 5 or Figure 7 The server 30 shown in the figure can be realized by Figure 2 The control processing device can realize the gas flow management method executed by the server 30 in any embodiment of the application through the processor 51 and the program code 531 in the memory 53, for example, the server 30 receives the welding data from the welding gas flow control device 20 and receives the welding parameter from the terminal 40, judges whether the welding data is reasonable according to the welding parameter, and outputs an alarm if it is not reasonable, for example, compares the welding current value set according to the welding parameter with the actual welding current value in the welding data, and outputs an alarm instruction to the terminal 40 if the welding current value set according to the welding parameter and the actual welding current value in the welding data differ by more than a preset threshold value, and the terminal 40 sends an alarm prompt.

[0081] In an embodiment, referring again to Figure 1 , the server 30 can obtain the target welding gas flow rate at the current time of the welding equipment 10 based on the welding current value at any time and its corresponding welding parameters; and calculate the difference between the welding gas flow rate at the current time and the target welding gas flow rate at the current time; if the difference corresponding to any time within the second preset time period is greater than the preset threshold value, the server 30 sends a gas flow alarm indication to the terminal 40.

[0082] For example, it is assumed that the server 30 receives the welding current value detected by the welding gas flow control device 20 at time A, and then queries according to the pre-set process parameters to find the welding current value range corresponding to the welding current value, and then finds the welding gas flow rate corresponding to the welding current value range, which is the welding gas flow rate required by the current process parameters, denoted as the target welding gas flow rate at time A; at the same time, the server 30 receives the welding gas flow rate detected by the welding gas flow control device 20 at time A, denoted as the welding gas flow rate at time A, and uses the target welding gas flow rate at time A minus the welding gas flow rate at time A to obtain the difference between the actual welding gas flow rate and the target welding gas flow rate at time A. If the difference is greater than the preset threshold value, the difference at time B is calculated according to the same calculation scheme, where time B is the next time after time A. In this way, the calculation is continued until time N, where time N is a certain time after time A. If all the differences within the time period from time A to time N are greater than the preset threshold value, the server 30 sends a gas flow alarm indication to the terminal 40, and the terminal 40 displays or triggers an alarm prompt according to the gas flow alarm indication, for example, using the alarm light to flash to prompt. If the time period from time A to time N is referred to as the second preset time period, and the difference corresponding to a certain time within the second preset time period and the time after the certain time is less than the preset threshold value, it means that the welding gas flow control device 20 is running normally at this time, and quickly adjusts the actual welding gas flow rate to the target welding gas flow rate, i.e., the difference is kept at 0 or close to 0, thereby meeting the requirements of the entire process parameters and realizing intelligent management of the welding gas flow rate.

[0083] In actual application, assuming that the time A is the time of just starting, the welding gas flow will certainly experience the process from 0 to the target gas flow, and the adjustment process of the adjusting valve usually needs tens of milliseconds to hundreds of milliseconds, so the second preset time length can be set as 1 minute, that is, if the difference between the actual welding gas flow and the target gas flow is greater than the preset threshold value within 1 minute, it is possible that a fault occurs somewhere, for example, the welding gas flow control device 20 abnormally, causing abnormal detection or abnormal adjustment of the gas flow, for another example, the actual welding gas flow cannot be quickly increased due to pipeline leakage, so the fault can be checked in time, thereby avoiding waste of gas and avoiding possible welding quality abnormality. Of course, if the difference between the actual welding gas flow and the target welding gas flow is too large after welding for a period of time, for example, the process parameters can be set differently for different welding layers, and the specific process parameters of each layer are different, and the difference between the actual welding gas flow and the target welding gas flow can also be large during parameter switching, at this time, the same operation mode as above can be used to determine whether a fault occurs.

[0084] It can be understood that the specific time of the second preset time length can be set according to different on-site use conditions, which is not limited here.

[0085] Optionally, the server 30 is further configured to send a current alarm instruction to the terminal 40 if the current welding current value is greater than or equal to the preset current threshold value at any time.

[0086] By setting a preset current threshold value, the user can be notified in time to handle when the welding current value is too large, which can avoid damage to the welding equipment due to abnormal current, and further protect the personal safety of the user.

[0087] In an embodiment, the server is further configured to store the welding current value and the time corresponding to the welding current value, and store the welding gas flow and the time corresponding to the welding gas flow.

[0088] Specifically, a cache unit is arranged in the server 30, through which old data can be stored while the data is constantly refreshed, which can be viewed by the user later and used as a basis, for example, after a welding is completed, it is found that part of the welding quality is abnormal, for example, there are too many welding pores, then the time table of the historical welding current value and the time table of the historical welding gas flow that have been stored can be checked, if it is found that the welding current value or the welding gas flow has abnormal fluctuation in a certain period of time, the source of the abnormal welding quality can be quickly found, the abnormal source is processed, and the problem is truly solved, thereby improving the stability of the welding process.

[0089] Further, the terminal 40 is also configured to display the alarm content and send an alarm prompt according to the airflow alarm indication or the current alarm indication sent by the server 30. Through the alarm prompt, the user can be timely notified to handle the abnormality, so as to avoid waste of welding gas flow and other abnormal situations.

[0090] In another embodiment, as shown in FIG. 4, the terminal 40 can not only display the alarm, but also display various welding data through various functions. The welding data can be real-time detected welding data or calculated welding data. Figure 7

[0091] For example, in an embodiment, the real-time detected welding data includes welding current value and welding gas flow, as shown in FIG. 5, the terminal 40 is provided with a real-time welding current monitoring function 41 for displaying the welding current value in real time for the user to view, and a real-time welding gas flow monitoring function 42 for displaying the welding gas flow in real time for the user to view. In actual application, usually multiple welding devices 10 work at the same time, so the device identification code of the welding device is needed to distinguish different welding devices 10. Figure 7

[0092] Optionally, the terminal 40 can also use a historical welding current tracking function 43 to display the welding current value stored in the server 30 and the corresponding time, and use a historical welding gas flow tracking function 44 to display the welding gas flow stored in the server 30 and the corresponding time.

[0093] In another embodiment, the welding data also includes welding duration and device usage rate, which are calculated welding data. The total time of the welding current value greater than 0 in the first preset time is recorded as the welding duration, and the ratio of the welding duration to the welding device on time is recorded as the device usage rate.

[0094] Therefore, the terminal 40 also has a corresponding display device welding duration function 45. For example, after the welding task of a day is completed, the terminal 40 can display the welding current value and the corresponding time on the day, add all the time periods with welding current value greater than 0 to obtain the total welding duration of the day, and then know the workload of the user on the day.

[0095] ​​Similarly, the terminal 40 has a function of displaying the equipment usage rate 46. If the equipment usage rate 46 is low on a certain day, the user can determine that the ratio of the welding time on the day to the on-time of the welding equipment is small, so that the user can determine in time whether the welding task amount is not large recently, and then adjust the on-time of the welding equipment, so as to reduce the power consumption, improve the efficiency, and reduce the welding cost.

[0096] Optionally, the terminal 40 can count the gas consumption in a unit of time through the function of gas consumption accurate control statistics 47, and then determine the gas cost to be spent by using the gas consumption. In an embodiment, by checking the gas consumption in a day, the cost of the welding gas to be spent on the day can be determined, and then the total income corresponding to the welding task completed on the day is checked, and by comparing the total income and the cost, whether the welding task on the day has a net income can be determined. If the net income is small, the user needs to consider whether to increase the remuneration to be obtained for completing the welding task, or the user needs to consider how to further improve the utilization rate of the gas to reduce the waste of the welding gas, and in general, reduce the production cost.

[0097] It should be understood that in the present application, the terminal can be referred to as a smart terminal device, a terminal device, a terminal apparatus, an electronic device, or the like. The electronic device can also be referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), or the like. For example, a handheld device with wireless connection function, a vehicle-mounted device, or the like. The electronic device can also include, but is not limited to, a portable electronic device running Android, Microsoft Windows, or other operating systems. The above-mentioned portable electronic device can also be a laptop with a touch-sensitive surface (such as a touch panel), etc. At present, some examples of terminals are: mobile phones, tablet computers, notebook computers, palm computers, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc.

[0098] The application provides a welding gas flow management system, in which welding parameters are set through a terminal first, and the welding parameters are transmitted to a server, the server sends the welding parameters to a welding gas flow control device after receiving the welding parameters, and the welding gas flow control device controls the welding gas flow of a welding device according to the welding parameters; then the welding gas flow control device generates welding data in the welding process of the welding device, the server receives the welding data from the welding gas flow control device and transmits the welding data to the terminal, the terminal receives the welding data from the server and displays the welding data, intelligent and standardized welding production is realized, welding cost is reduced, and welding production quality is improved.

[0099] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, and not to limit them; under the idea of the present application, the technical features of the above examples or different examples can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in detail for simplicity; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A welding gas flow management system, characterized by, The system comprises: a welding device; a welding gas flow control device connected with the welding device, the welding gas flow control device being configured to control welding gas flow of the welding device according to welding parameters and generate welding data during welding of the welding device; a terminal and a server, the server being connected with the terminal and the welding gas flow control device respectively; the server being configured to receive the welding data from the welding gas flow control device and transmit the welding data to the terminal, receive the welding parameters from the terminal and transmit the welding parameters to the welding gas flow control device; the terminal being configured to set the welding parameters and transmit the welding parameters to the server, receive the welding data from the server and display the welding data; the welding data comprising welding current value and welding gas flow; the server being configured to: obtain target welding gas flow of the welding device at the current time based on the welding current value at any time and the welding parameters corresponding to the welding current value; calculate difference between the welding gas flow at the current time and the target welding gas flow at the current time; if the difference corresponding to any time within a second preset time length is greater than a preset threshold, send gas flow alarm indication to the terminal; if the welding current value is greater than or equal to a preset current threshold, send current alarm indication to the terminal.

2. The welding gas flow management system according to claim 1, wherein: the welding gas flow control device comprises a current detection unit, a gas flow adjusting unit, a gas flow detection unit and a control processing unit, the control processing unit being connected with the current detection unit, the gas flow detection unit and the gas flow adjusting unit respectively; the current detection unit is configured to be connected with the welding device to detect welding current value of the welding device; the gas flow detection unit is configured to detect welding gas flow at the gas outlet of the gas flow adjusting unit; the control processing unit is configured to control the gas flow adjusting unit according to the welding current value and the welding gas flow.

3. The welding gas flow management system according to claim 2, wherein: the welding gas flow control device further comprises a communication unit, the communication unit being electrically connected with the control processing unit, the control processing unit receiving the welding parameters and sending the welding data through the communication unit.

4. The welding gas flow management system according to claim 2 or 3, wherein: the control processing unit is specifically configured to: obtain current welding current value of the welding device; obtain current target welding gas flow of the welding device based on the current welding current value and the welding parameters; adjust the gas flow adjusting unit based on the current target welding gas flow.

5. The welding gas flow management system according to claim 1, wherein: the welding data comprises device identification code of the welding device.

6. The welding gas flow management system according to claim 5, wherein: The welding data further comprises a welding duration and a device usage rate; The welding duration is a total time during which the welding current value is greater than 0 within a first preset duration; The device usage rate is a ratio of the welding duration to a welding device boot-up duration.

7. The welding gas flow management system of claim 1, wherein The terminal is further configured to display alarm content and send an alarm prompt according to the gas flow alarm indication or the current alarm indication.

8. The welding gas flow management system of claim 1, wherein The server is further configured to: store the welding current value and a time corresponding to the welding current value; store the welding gas flow and a time corresponding to the welding gas flow.

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