CN113102907A - Heating control method and device of electric hot melting machine - Google Patents
Heating control method and device of electric hot melting machine Download PDFInfo
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- CN113102907A CN113102907A CN202110421911.1A CN202110421911A CN113102907A CN 113102907 A CN113102907 A CN 113102907A CN 202110421911 A CN202110421911 A CN 202110421911A CN 113102907 A CN113102907 A CN 113102907A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
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Abstract
The invention provides a heating control method and a device of an electric hot melting machine, comprising the following steps: determining welding parameters, wherein the welding parameters comprise preheating parameters and welding parameters; heating the load according to the preheating parameters, and detecting whether the current preheating temperature is normal; if the current preheating temperature is abnormal, switching to a time sequence control mode to heat the load; if the current preheating temperature is normal, continuing to heat the load according to the welding parameters, and detecting whether the current welding temperature is normal; if the current welding temperature is abnormal, switching to a time sequence control mode to heat the load; if the current welding temperature is normal, heating the load according to the welding parameters and then stopping heating; welding requirements under different working conditions are met through the determined welding parameters, and welding quality is improved; and a temperature control mode and a time sequence control mode are adopted, and if the current preheating temperature or the current welding temperature collected by the temperature measuring element is abnormal, the temperature control is switched to the time sequence control, so that the normal work of the equipment is ensured.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a heating control method and a heating control device of an electric melting machine.
Background
At present, the heating of the electric heating net adopts two modes of manual control and automatic control. The manual control is that current or voltage is input and loaded at two ends of the electric heating net. Adjusting current or voltage through a knob to heat the heating net; because different operating modes heating effect is different, so need adjust the electric current size according to the operating mode, the regulation of electric current size is that different technical staff adjusts according to the experience, may cause welding quality's difference.
The automatic control is automatically executed by adopting a heating-heat preservation fixed mode by acquiring temperature signals on a heating net through a temperature measuring element. When the temperature signal collected by the temperature measuring element is abnormal, the equipment can not work normally.
In addition, when different specifications of electric hot melting machines exist, the corresponding welding parameters under different working conditions are different. And manual control and automatic control cannot meet the welding requirements of all working conditions.
Disclosure of Invention
In view of the above, the present invention aims to provide a heating control method and device for an electric melting machine, which can meet welding requirements under different working conditions and improve welding quality by continuously learning machine intelligence and determining welding parameters from a quality certification database; the temperature control mode and the time sequence control mode are adopted, if the current preheating temperature or the current welding temperature collected by the temperature measuring element is abnormal, the temperature control mode is switched to the time sequence control mode, automatic switching is achieved, and the device is guaranteed to achieve intelligent normal work.
In a first aspect, an embodiment of the present invention provides a heating control method for an electrothermal welding machine, where the method includes:
determining welding parameters, wherein the welding parameters comprise preheating parameters and welding parameters;
heating the load according to the preheating parameters, and detecting whether the current preheating temperature is normal;
if the current preheating temperature is abnormal, switching to a time sequence control mode to heat the load;
if the current preheating temperature is normal, continuing to heat the load according to the welding parameters, and detecting whether the current welding temperature is normal;
if the current welding temperature is abnormal, switching to the time sequence control mode to heat the load;
and if the current welding temperature is normal, stopping heating after the load is heated according to the welding parameters.
Further, the determining the welding parameters comprises:
acquiring current welding parameters;
welding according to the current welding parameters to obtain a first welding result;
judging whether the first welding result meets qualified conditions or not;
if so, taking the current welding parameters as the welding parameters corresponding to the current working condition and the current specification;
if not, adjusting the current welding parameter to obtain an adjusted welding parameter;
welding the adjusted welding parameters to obtain a second welding result;
judging whether the second welding result meets the qualified condition;
and if so, taking the adjusted welding parameters as the welding parameters corresponding to the current working condition and the current specification.
Further, preheating parameters comprise preheating current setting, preheating temperature setting and preheating time setting, and welding parameters comprise welding current setting, welding temperature setting and welding time setting.
Further, the heating the load according to the preheating parameter and detecting whether the current preheating temperature is normal includes:
and in the preheating stage, heating the load according to the set preheating current, and detecting whether the current preheating temperature reaches the set preheating temperature.
Further, if the current preheating temperature is abnormal, switching to a time sequence control mode to heat the load includes:
if the current preheating temperature is larger than the set preheating temperature, obtaining first time according to the set preheating current and the set preheating temperature;
heating the load according to the set preheating current and the first time.
Further, if the current preheating temperature is normal, continuing to heat the load according to the welding parameters, and detecting whether the current welding temperature is normal, including:
if the current preheating temperature reaches the set preheating temperature, stopping heating and keeping the set preheating time;
and in the welding stage, heating the load according to the set welding current, and detecting whether the current welding temperature reaches the set welding temperature.
Further, if the current welding temperature is abnormal, switching to the time sequence control mode to heat the load includes:
if the current welding temperature is larger than the set welding temperature, obtaining second time according to the current welding current and the set welding temperature;
heating the load according to the set welding current and the second time.
Further, the method further comprises:
and adjusting the set preheating current or the set welding current according to the heating rate to obtain the adjusted preheating current or the adjusted welding current.
In a second aspect, an embodiment of the present invention provides a heating control device for an electric melting machine, where the device includes:
the device comprises a determining unit, a control unit and a control unit, wherein the determining unit is used for determining welding parameters which comprise preheating parameters and welding parameters;
the first detection unit is used for heating the load according to the preheating parameters and detecting whether the current preheating temperature is normal or not;
the first switching unit is used for switching to a time sequence control mode to heat the load under the condition that the current preheating temperature is abnormal;
the second detection unit is used for continuously heating the load according to the welding parameters under the condition that the current preheating temperature is normal, and detecting whether the current welding temperature is normal or not;
the second switching unit is used for switching to the time sequence control mode to heat the load under the condition that the current welding temperature is abnormal;
and the heating stopping unit is used for stopping heating after the load is heated according to the welding parameters under the condition that the current welding temperature is normal.
In a third aspect, an embodiment of the present invention provides an electronic device, including a memory and a processor, where the memory stores a computer program operable on the processor, and the processor implements the method described above when executing the computer program.
The embodiment of the invention provides a heating control method and a device of an electric hot melting machine, comprising the following steps: determining welding parameters, wherein the welding parameters comprise preheating parameters and welding parameters; heating the load according to the preheating parameters, and detecting whether the current preheating temperature is normal; if the current preheating temperature is abnormal, switching to a time sequence control mode to heat the load; if the current preheating temperature is normal, continuing to heat the load according to the welding parameters, and detecting whether the current welding temperature is normal; if the current welding temperature is abnormal, switching to a time sequence control mode to heat the load; if the current welding temperature is normal, heating the load according to the welding parameters and then stopping heating; welding requirements under different working conditions are met through the determined welding parameters, and welding quality is improved; and a temperature control mode and a time sequence control mode are adopted, and if the current preheating temperature or the current welding temperature collected by the temperature measuring element is abnormal, the temperature control is switched to the time sequence control, so that the normal work of the equipment is ensured.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a heating control method of an electrothermal welding machine according to an embodiment of the present invention;
FIG. 2 is a schematic view of a welding parameter setting interface according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a temperature rise rate curve according to an embodiment of the present invention;
fig. 4 is a schematic view of a heating control device of an electrothermal melting machine according to a second embodiment of the present invention.
Icon:
1-a determination unit; 2-a first detection unit; 3-a first switching unit; 4-a second detection unit; 5-a second switching unit; 6-stop the heating unit.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the understanding of the present embodiment, the following detailed description will be given of the embodiment of the present invention.
The first embodiment is as follows:
fig. 1 is a flowchart of a heating control method of an electrothermal welding machine according to an embodiment of the present invention.
Referring to fig. 1, the method includes the steps of:
step S101, determining welding parameters, wherein the welding parameters comprise preheating parameters and welding parameters;
here, the welding parameters under various working conditions are determined through quality certification so as to be suitable for different specifications, and then intelligent control is realized according to the determined welding parameters.
The acquisition of the welding parameters can be obtained by the following method: a user clicks an automatic matching parameter button on a touch screen of the equipment, and the equipment can match corresponding welding parameters according to the current working condition; the two-dimensional code on the code scanning gun scanning device can be scanned, the code scanning gun sends the specification information included in the identification code to the device, and the device matches the corresponding welding parameters according to the specification information. The equipment is a heating control device of the electric melting machine, and the identification code comprises but is not limited to a bar code and a two-dimensional code. In addition, the welding parameters may also be obtained via a conventional-temperature control button on the interface.
Step S102, heating the load according to the preheating parameters, and detecting whether the current preheating temperature is normal;
step S103, if the current preheating temperature is abnormal, switching to a time sequence control mode to heat a load;
step S104, if the current preheating temperature is normal, continuing to heat the load according to the welding parameters, and detecting whether the current welding temperature is normal;
step S105, if the current welding temperature is abnormal, switching to a time sequence control mode to heat a load;
and step S106, if the current welding temperature is normal, heating the load according to the welding parameters and then stopping heating.
Specifically, when the intelligent control mode is entered, the heating process is automatically completed by the equipment without manual intervention, and the fault is automatically processed. The intelligent control is selected via an intelligent conventional selection button on the interface.
During the heating process of the equipment, the default working mode is temperature control. Heating the load according to the preheating parameters, and detecting whether the current preheating temperature is normal; if the abnormal state exists, switching to a time sequence control mode; if the welding process is normal, the preheating stage is started to be the welding stage; after entering a welding stage, continuously heating the load according to welding parameters, and detecting whether the current welding temperature is normal; if the welding parameters are normal, the heating is stopped after the heating of the load is finished according to the welding parameters; and if the abnormal condition exists, switching to the time sequence control module to heat the load. Wherein the load is a heating net, a heating wire or a heating material.
Further, step S101 includes the steps of:
step S201, obtaining current welding parameters;
step S202, welding is carried out according to the current welding parameters to obtain a first welding result;
step S203, judging whether the first welding result meets qualified conditions; if yes, executing step S204; if not, go to step S205;
step S204, taking the current welding parameters as the welding parameters corresponding to the current working condition and the current specification;
step S205, adjusting the current welding parameters to obtain adjusted welding parameters;
step S206, welding the adjusted welding parameters to obtain a second welding result;
step S207, judging whether the second welding result meets qualified conditions; if yes, go to step S208;
and S208, taking the adjusted welding parameters as the welding parameters corresponding to the current working condition and the current specification.
Specifically, due to the fact that polyethylene welding has thicknesses and materials of various specifications, a user can establish a quality certification database according to the various specifications, namely welding is carried out according to current welding parameters to obtain a first welding result; judging whether the first welding result meets the qualified conditions, and if so, saving the welding parameters; if the welding parameter does not meet the requirement, the current welding parameter needs to be readjusted, the adjusted welding parameter is welded to obtain a second welding result, the second welding result is detected again, whether the second welding result meets the qualified condition or not is judged, and if the second welding result meets the qualified condition, the adjusted welding parameter is stored.
And after the welding parameters corresponding to each working condition are stored, directly matching the welding parameters corresponding to the working conditions according to the working conditions of engineering site construction.
Further, preheating parameters comprise preheating current setting, preheating temperature setting and preheating time setting, and welding parameters comprise welding current setting, welding temperature setting and welding time setting.
Specifically, referring to fig. 2, the heating process of the electric melting machine includes two stages, the first stage is a preheating stage, and the second stage is a welding stage. Setting preheating current, preheating temperature and preheating time in the process of a preheating stage, wherein the preheating current is set to be 17.2A, the preheating temperature is set to be 110 ℃, and the preheating time is set to be 80 seconds; in the welding stage, a set welding current, a set welding temperature and a set welding time are set, wherein the set welding current is 20.1A, the set welding temperature is 200 ℃ and the set welding time is 60 seconds.
Further, step S102 includes:
in the preheating stage, the load is heated according to the set preheating current, and whether the current preheating temperature reaches the set preheating temperature is detected.
Further, step S103 includes:
step S301, if the current preheating temperature is higher than the set preheating temperature, obtaining a first time according to the set preheating current and the set preheating temperature;
step S302, heating the load according to the set preheating current and the first time.
Further, step S104 includes the steps of:
step S401, if the current preheating temperature reaches the set preheating temperature, stopping heating and keeping the set preheating time;
step S402, in the welding stage, the load is heated according to the set welding current, and whether the current welding temperature reaches the set welding temperature is detected.
Further, step S105 includes the steps of:
step S501, if the current welding temperature is larger than the set welding temperature, obtaining second time according to the current welding current and the set welding temperature;
step S502, heating the load according to the set welding current and the second time.
Further, the method further comprises:
and adjusting the set preheating current or the set welding current according to the heating rate to obtain the adjusted preheating current or the adjusted welding current.
Specifically, the temperature difference exists between the light surface and the non-light surface welded by the electric hot melting machine. The heat loss varies depending on the use environment. Factors affecting heat loss include ambient temperature, moderation, wind pressure, etc., and thus, the current during heating needs to be adjusted to compensate for heat loss. The difference of heat loss is mainly reflected in the rate of the temperature rising process, when the heat loss is increased, the temperature rising rate is reduced, and at the moment, the current needs to be increased; when the heat loss is reduced, the temperature rise rate becomes large, and at this time, the current needs to be reduced.
In the same environment, when the current of the heating process is not changed, the heating temperature rise rate is also fixed. The rate of temperature rise is expressed in ℃/S. The electric hot melting process needs to ensure certain heat, the temperature rising rate needs to be kept within a certain range, and when the temperature rising rate is within a preset range, the temperature rising is judged to be normal. Referring to fig. 3, a1 and a2 are different temperature increase rates, and when the current is constant, the temperature increase rate is in the interval between a1 and a2, and if this interval is exceeded, it is determined to be abnormal. When the temperature measurement sensor is not placed at the right position or the temperature measurement sensor has a fault (short circuit or disconnection), the current preheating temperature acquired by the temperature measurement sensor is higher than the set preheating temperature, and at the moment, the temperature rise process is considered to be abnormal, and the time sequence control mode needs to be switched.
The embodiment of the invention provides a heating control method of an electric hot melting machine, which comprises the following steps: determining welding parameters, wherein the welding parameters comprise preheating parameters and welding parameters; heating the load according to the preheating parameters, and detecting whether the current preheating temperature is normal; if the current preheating temperature is abnormal, switching to a time sequence control mode to heat the load; if the current preheating temperature is normal, continuing to heat the load according to the welding parameters, and detecting whether the current welding temperature is normal; if the current welding temperature is abnormal, switching to a time sequence control mode to heat the load; if the current welding temperature is normal, heating the load according to the welding parameters and then stopping heating; welding requirements under different working conditions are met through the determined welding parameters, and welding quality is improved; and a temperature control mode and a time sequence control mode are adopted, and if the current preheating temperature or the current welding temperature collected by the temperature measuring element is abnormal, the temperature control is switched to the time sequence control, so that the normal work of the equipment is ensured.
Example two:
fig. 4 is a schematic view of a heating control device of an electrothermal melting machine according to a second embodiment of the present invention.
Referring to fig. 4, the apparatus includes:
the device comprises a determining unit 1, a control unit and a control unit, wherein the determining unit is used for determining welding parameters which comprise preheating parameters and welding parameters;
the first detection unit 2 is used for heating the load according to the preheating parameters and detecting whether the current preheating temperature is normal;
the first switching unit 3 is used for switching to a time sequence control mode to heat the load under the condition that the current preheating temperature is abnormal;
the second detection unit 4 is used for continuing to heat the load according to the welding parameters under the condition that the current preheating temperature is normal, and detecting whether the current welding temperature is normal or not;
the second switching unit 5 is used for switching to a time sequence control mode to heat the load under the condition that the current welding temperature is abnormal;
and the heating stopping unit 6 is used for stopping heating after the load is heated according to the welding parameters under the condition that the current welding temperature is normal.
The embodiment of the invention provides a heating control device of an electric hot melting machine, which comprises: determining welding parameters, wherein the welding parameters comprise preheating parameters and welding parameters; heating the load according to the preheating parameters, and detecting whether the current preheating temperature is normal; if the current preheating temperature is abnormal, switching to a time sequence control mode to heat the load; if the current preheating temperature is normal, continuing to heat the load according to the welding parameters, and detecting whether the current welding temperature is normal; if the current welding temperature is abnormal, switching to a time sequence control mode to heat the load; if the current welding temperature is normal, heating the load according to the welding parameters and then stopping heating; welding requirements under different working conditions are met through the determined welding parameters, and welding quality is improved; and a temperature control mode and a time sequence control mode are adopted, and if the current preheating temperature or the current welding temperature collected by the temperature measuring element is abnormal, the temperature control is switched to the time sequence control, so that the normal work of the equipment is ensured.
The embodiment of the invention further provides an electronic device, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the steps of the heating control method of the electric melting machine provided by the embodiment are realized when the processor executes the computer program.
The embodiment of the present invention further provides a computer readable medium having a non-volatile program code executable by a processor, where the computer readable medium stores a computer program, and the computer program is executed by the processor to perform the steps of the heating control method of the electric melting machine of the above embodiment.
The computer program product provided in the embodiment of the present invention includes a computer-readable storage medium storing a program code, where instructions included in the program code may be used to execute the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment, which is not described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A heating control method of an electric melting machine is characterized by comprising the following steps:
determining welding parameters, wherein the welding parameters comprise preheating parameters and welding parameters;
heating the load according to the preheating parameters, and detecting whether the current preheating temperature is normal;
if the current preheating temperature is abnormal, switching to a time sequence control mode to heat the load;
if the current preheating temperature is normal, continuing to heat the load according to the welding parameters, and detecting whether the current welding temperature is normal;
if the current welding temperature is abnormal, switching to the time sequence control mode to heat the load;
and if the current welding temperature is normal, stopping heating after the load is heated according to the welding parameters.
2. The method of claim 1 wherein said determining welding parameters comprises:
acquiring current welding parameters;
welding according to the current welding parameters to obtain a first welding result;
judging whether the first welding result meets qualified conditions or not;
if so, taking the current welding parameters as the welding parameters corresponding to the current working condition and the current specification;
if not, adjusting the current welding parameter to obtain an adjusted welding parameter;
welding the adjusted welding parameters to obtain a second welding result;
judging whether the second welding result meets the qualified condition;
and if so, taking the adjusted welding parameters as the welding parameters corresponding to the current working condition and the current specification.
3. The method of claim 1 wherein the preheating parameters include a set preheating current, a set preheating temperature, and a set preheating time, and the welding parameters include a set welding current, a set welding temperature, and a set welding time.
4. The heating control method of the electric hot melt machine according to claim 3, wherein the heating the load according to the preheating parameter and detecting whether the current preheating temperature is normal comprises:
and in the preheating stage, heating the load according to the set preheating current, and detecting whether the current preheating temperature reaches the set preheating temperature.
5. The heating control method of the electric hot melt machine according to claim 4, wherein the switching to a time sequence control mode to heat the load if the current preheating temperature is abnormal includes:
if the current preheating temperature is larger than the set preheating temperature, obtaining first time according to the set preheating current and the set preheating temperature;
heating the load according to the set preheating current and the first time.
6. The method of claim 5, wherein if the current preheating temperature is normal, continuing to heat the load according to the welding parameters and detecting whether the current welding temperature is normal comprises:
if the current preheating temperature reaches the set preheating temperature, stopping heating and keeping the set preheating time;
and in the welding stage, heating the load according to the set welding current, and detecting whether the current welding temperature reaches the set welding temperature.
7. The method of claim 6, wherein the switching to the time-sequential control mode to heat the load if the current fusing temperature is abnormal comprises:
if the current welding temperature is larger than the set welding temperature, obtaining second time according to the current welding current and the set welding temperature;
heating the load according to the set welding current and the second time.
8. The method of claim 3, further comprising:
and adjusting the set preheating current or the set welding current according to the heating rate to obtain the adjusted preheating current or the adjusted welding current.
9. A heating control device of an electric melting machine, characterized in that the device comprises:
the device comprises a determining unit, a control unit and a control unit, wherein the determining unit is used for determining welding parameters which comprise preheating parameters and welding parameters;
the first detection unit is used for heating the load according to the preheating parameters and detecting whether the current preheating temperature is normal or not;
the first switching unit is used for switching to a time sequence control mode to heat the load under the condition that the current preheating temperature is abnormal;
the second detection unit is used for continuously heating the load according to the welding parameters under the condition that the current preheating temperature is normal, and detecting whether the current welding temperature is normal or not;
the second switching unit is used for switching to the time sequence control mode to heat the load under the condition that the current welding temperature is abnormal;
and the heating stopping unit is used for stopping heating after the load is heated according to the welding parameters under the condition that the current welding temperature is normal.
10. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any of claims 1 to 8 when executing the computer program.
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