CN108311829A - Method, device and system for controlling protective gas in welding process - Google Patents
Method, device and system for controlling protective gas in welding process Download PDFInfo
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- CN108311829A CN108311829A CN201810320989.2A CN201810320989A CN108311829A CN 108311829 A CN108311829 A CN 108311829A CN 201810320989 A CN201810320989 A CN 201810320989A CN 108311829 A CN108311829 A CN 108311829A
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- 238000003466 welding Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 71
- 230000001681 protective effect Effects 0.000 title claims description 102
- 239000007789 gas Substances 0.000 claims description 207
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 238000012512 characterization method Methods 0.000 claims 1
- 230000005693 optoelectronics Effects 0.000 claims 1
- 230000005622 photoelectricity Effects 0.000 claims 1
- 230000006870 function Effects 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/054—Input/output
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
本申请提供一种焊接过程中保护气体控制方法、装置和系统，方法包括：获取保护气体管路中保护气体的压力信号；获取用于表征焊接工位是否有待焊接工件的工件信号；判断所述压力信号的值是否位于预设范围之内，如果否，输出告警信号，如果是，判断所述工件信号是否为预设参考信号；当压力信号的值位于预设范围之内且所述工件信号为预设参考信号时，控制保护气体填充系统工作，从而能够保证为焊接过程提供足够的保护气体。
The present application provides a shielding gas control method, device and system in the welding process. The method includes: obtaining the pressure signal of the shielding gas in the shielding gas pipeline; obtaining the workpiece signal used to indicate whether there is a workpiece to be welded at the welding station; Whether the value of the pressure signal is within the preset range, if not, output an alarm signal, if yes, judge whether the workpiece signal is a preset reference signal; when the value of the pressure signal is within the preset range and the workpiece signal When the reference signal is preset, the shielding gas filling system is controlled to ensure sufficient shielding gas for the welding process.
Description
技术领域technical field
本发明涉及安全控制技术领域，具体涉及一种用于提高焊接质量的焊接过程中保护气体控制方法、装置和焊接系统。The invention relates to the technical field of safety control, in particular to a method, device and welding system for controlling shielding gas during welding for improving welding quality.
背景技术Background technique
由于氧化的金属非常容易脱落掉在管道中，如果在管程(氟侧)如果存在效大颗粒的话会堵住压缩机，导致压缩机烧坏，所以氟侧的清洁度控制是相当严格的，需要严格保证管道中的清洁。因此空调设备在焊接铜管时通常通入氮气、二氧化碳或者惰性气体等保护气体，采用保护气体辅助焊接能够防止金属在焊接高温下氧化。焊接时焊接件内部充保护气体进行保护，保护气体是流动的，因此可以将铜管内的氧气挤出来，防止铜管内壁在加热过程中氧化生成氧化皮。Since the oxidized metal is very easy to fall off in the pipeline, if there are large particles in the tube side (fluorine side), it will block the compressor and cause the compressor to burn out, so the cleanliness control of the fluorine side is quite strict. Cleanliness in the pipeline needs to be strictly guaranteed. Therefore, when welding copper pipes, air-conditioning equipment usually passes protective gases such as nitrogen, carbon dioxide or inert gases, and the use of protective gases to assist welding can prevent metal oxidation at high welding temperatures. When welding, the inside of the weldment is filled with protective gas for protection. The protective gas is flowing, so the oxygen in the copper tube can be squeezed out to prevent the inner wall of the copper tube from being oxidized to form scale during heating.
由此可见，焊接质量是保证空调质量的重中之重，而提高焊接质量的重要方法之一是改善保护气体的填充效果，目前使用的保护气体控制方法为直接一些细管直接由保护气体储气罐中提供保护气体，在焊接过程中用户无法判断填充的保护气体是否能够满足需求，如果焊接时，保护气体储气罐内的气体已经耗尽或气压过低，无法提供足够的保护气体量时，会直接影响焊接质量，因此，如何保证保护气体填充系统能够在焊接过程中提供充足的保护气体的量，成为本领域技术人员亟待解决的技术问题之一。It can be seen that the welding quality is the most important thing to ensure the quality of the air conditioner, and one of the important methods to improve the welding quality is to improve the filling effect of the shielding gas. The shielding gas is provided in the gas tank. During the welding process, the user cannot judge whether the filled shielding gas can meet the demand. If the gas in the shielding gas storage tank has been exhausted or the air pressure is too low during welding, it cannot provide enough shielding gas. , it will directly affect the welding quality, therefore, how to ensure that the shielding gas filling system can provide sufficient amount of shielding gas during the welding process has become one of the technical problems to be solved urgently by those skilled in the art.
发明内容Contents of the invention
有鉴于此，本发明实施例提供一种焊接过程中保护气体控制方法和系统，以保证保护气体填充系统能够在焊接过程中提供充足的保护气体的量。In view of this, embodiments of the present invention provide a shielding gas control method and system during welding, so as to ensure that the shielding gas filling system can provide sufficient amount of shielding gas during welding.
为实现上述目的，本发明实施例提供如下技术方案：In order to achieve the above purpose, embodiments of the present invention provide the following technical solutions:
一种焊接过程中保护气体控制方法，包括：A method for controlling shielding gas during welding, comprising:
获取保护气体管路中保护气体的压力信号；Obtain the pressure signal of the shielding gas in the shielding gas pipeline;
获取用于表征焊接工位是否有待焊接工件的工件信号；Obtaining a workpiece signal used to indicate whether there is a workpiece to be welded at the welding station;
判断所述压力信号的值是否位于预设范围之内，如果否，输出告警信号，如果是，判断所述工件信号是否为预设参考信号；judging whether the value of the pressure signal is within a preset range, if not, outputting an alarm signal, and if yes, judging whether the workpiece signal is a preset reference signal;
当压力信号的值位于预设范围之内且所述工件信号为预设参考信号时，控制保护气体填充系统工作。When the value of the pressure signal is within a preset range and the workpiece signal is a preset reference signal, the protective gas filling system is controlled to work.
可选的，上述焊接过程中保护气体控制方法中，获取用于表征焊接工位是否有待焊接工件的工件信号，具体包括：Optionally, in the above shielding gas control method during the welding process, the workpiece signal used to indicate whether there is a workpiece to be welded at the welding station is obtained, specifically including:
获取位于保护气体填充工位的工件检测器的输出信号，记为工件信号，当所述工件信号为预设参考信号时，表明焊接工位有待焊接工件，否则，表明焊接工位无待焊接工件。Obtain the output signal of the workpiece detector located at the shielding gas filling station, and record it as the workpiece signal. When the workpiece signal is a preset reference signal, it indicates that the welding station has a workpiece to be welded, otherwise, it indicates that the welding station has no workpiece to be welded .
可选的，上述焊接过程中保护气体控制方法中，所述获取保护气体管路中保护气体的压力信号之后，还用于：Optionally, in the above shielding gas control method during the welding process, after the pressure signal of the shielding gas in the shielding gas pipeline is obtained, it is also used for:
输出用于表征所述保护气体的压力状态的提示信号。Outputting a prompt signal for characterizing the pressure state of the shielding gas.
可选的，上述焊接过程中保护气体控制方法中，当压力信号的值位于预设范围之内且所述工件信号为预设参考信号时，还包括：Optionally, in the above method for controlling shielding gas during welding, when the value of the pressure signal is within a preset range and the workpiece signal is a preset reference signal, the method further includes:
控制位于保护气体输出管路出口的电磁阀开启，使得所述保护气体输出管路出口处于开启状态。The electromagnetic valve located at the outlet of the protective gas output pipeline is controlled to be opened, so that the outlet of the protective gas output pipeline is in an open state.
可选的，上述焊接过程中保护气体控制方法中，所述获取保护气体管路中保护气体的压力信号，具体为：Optionally, in the above shielding gas control method during the welding process, the acquisition of the pressure signal of the shielding gas in the shielding gas pipeline is specifically:
获取保护气体管路中氮气的压力信号，所述氮气作为焊接过程中的保护气体。The pressure signal of nitrogen in the shielding gas pipeline is obtained, and the nitrogen is used as the shielding gas in the welding process.
一种焊接过程中保护气体控制装置，包括：A shielding gas control device during welding, comprising:
存储器和处理器；memory and processor;
所述存储器用于存储程序代码，所述处理器用于调用所述程序代码，当所述程序代码被执行时，用于执行以下操作：The memory is used to store program code, the processor is used to call the program code, and when the program code is executed, it is used to perform the following operations:
获取保护气体管路中保护气体的压力信号；Obtain the pressure signal of the shielding gas in the shielding gas pipeline;
获取用于表征焊接工位是否有待焊接工件的工件信号；Obtaining a workpiece signal used to indicate whether there is a workpiece to be welded at the welding station;
判断所述压力信号的值是否位于预设范围之内，如果否，输出告警信号，如果是，判断所述工件信号是否为预设参考信号；judging whether the value of the pressure signal is within a preset range, if not, outputting an alarm signal, and if yes, judging whether the workpiece signal is a preset reference signal;
当压力信号的值位于预设范围之内且所述工件信号为预设参考信号时，控制保护气体填充系统工作。When the value of the pressure signal is within a preset range and the workpiece signal is a preset reference signal, the protective gas filling system is controlled to work.
一种保护气体控制系统，应用于焊接系统中，包括：A shielding gas control system applied in a welding system, comprising:
设置于保护气体输出管路中的压力传感器，所述压力传感器用于检测并输出保护气体输出管路中的保护气体的压力信号；A pressure sensor arranged in the protective gas output pipeline, the pressure sensor is used to detect and output the pressure signal of the protective gas in the protective gas output pipeline;
用于检测焊接工位是否有待焊接工件的工件检测器，所述工件检测器用于输出表征焊接工位上是否存在待焊接工件的工件信号；A workpiece detector for detecting whether there is a workpiece to be welded at the welding station, and the workpiece detector is used to output a workpiece signal representing whether there is a workpiece to be welded on the welding station;
与所述压力传感器和工件检测器相连的控制器；a controller connected to the pressure sensor and workpiece detector;
与所述控制器相连的告警系统；an alarm system connected to said controller;
与所述控制器相连的保护气体输出继电器；a shielding gas output relay connected to the controller;
与所述充氮输出继电器相连的保护气体填充夹爪；A protective gas filling jaw connected to the nitrogen filling output relay;
所述控制器具有：The controller has:
与告警系统相连、当压力传感器输出的压力信号的值没有位于预设范围之内时，向告警系统输出告警信号的第一接口；A first interface that is connected to the alarm system and outputs an alarm signal to the alarm system when the value of the pressure signal output by the pressure sensor is not within the preset range;
与保护气体输出继电器相连、当所述压力信号的值位于预设范围之内且所述工件检测器输出的工件信号为预设参考信号时，通过所述保护气体输出继电器控制保护气体充入保护气体填充夹爪的第二接口。Connected to the protective gas output relay, when the value of the pressure signal is within the preset range and the workpiece signal output by the workpiece detector is a preset reference signal, the protective gas is controlled by the protective gas output relay to fill the protection Gas fills the second port of the jaw.
可选的，上述保护气体控制系统中，所述告警系统包括：Optionally, in the above protective gas control system, the alarm system includes:
蜂鸣器和故障指示灯。Buzzer and fault indicator light.
可选的，上述保护气体控制系统中，所述工件检测器为光电开关，当所述光电开关被待焊接件遮挡时，输出大小为预设参考信号的工件信号。Optionally, in the above shielding gas control system, the workpiece detector is a photoelectric switch, and when the photoelectric switch is blocked by the workpiece to be welded, it outputs a workpiece signal whose magnitude is a preset reference signal.
可选的，上述保护气体控制系统中，还包括：Optionally, the above protective gas control system also includes:
与所述控制器相连的保护气体状态指示器，所述保护气体状态指示器用于显示与所述压力传感器的输出信号相匹配的保护气体的压力状态。A shielding gas state indicator connected to the controller, the shielding gas state indicator is used to display the pressure state of the shielding gas matching the output signal of the pressure sensor.
可选的，上述保护气体控制系统中，所述保护气体为氮气。Optionally, in the above protection gas control system, the protection gas is nitrogen.
可选的，上述保护气体控制系统中，还包括：Optionally, the above protective gas control system also includes:
设置于保护气体输出管路出口的电磁阀，所述电磁阀用于控制保护气体输出管路出口的开启状态。A solenoid valve arranged at the outlet of the protective gas output pipeline, the solenoid valve is used to control the opening state of the outlet of the protective gas output pipeline.
基于上述技术方案，本发明实施例提供的上述方案，能够自行检测保护气体存储罐内的保护气体的压力信号，当检测到所述压力信号位于预设范围之内时，表明保护气体充足，能够满足需求，此时继续通过所述工件信号判断待焊接工件是否就位，当所述工件信号为预设参考信号时，表明待焊接工件也已经就位，此时，控制保护气体填充系统工作，为焊接过程提供足够的保护气体。Based on the above technical solution, the above solution provided by the embodiment of the present invention can automatically detect the pressure signal of the protective gas in the protective gas storage tank. When the pressure signal is detected to be within the preset range, it indicates that the protective gas is sufficient and can To meet the requirements, continue to use the workpiece signal to judge whether the workpiece to be welded is in place. When the workpiece signal is a preset reference signal, it indicates that the workpiece to be welded is also in place. At this time, the protective gas filling system is controlled to work. Provide adequate shielding gas for the welding process.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据提供的附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.
图1为本申请实施例公开的一种焊接过程中保护气体控制方法的流程示意图；FIG. 1 is a schematic flow diagram of a shielding gas control method in a welding process disclosed in an embodiment of the present application;
图2为本申请另一实施例公开的一种焊接过程中保护气体控制方法的流程示意图；Fig. 2 is a schematic flow chart of a shielding gas control method in the welding process disclosed in another embodiment of the present application;
图3为本申请实施例公开的一种焊接过程中保护气体控制装置的结构示意图；Fig. 3 is a schematic structural diagram of a shielding gas control device in a welding process disclosed in an embodiment of the present application;
图4为本申请实施例公开的一种保护气体控制系统的结构示意图；Fig. 4 is a schematic structural diagram of a shielding gas control system disclosed in an embodiment of the present application;
图5为本申请实施例公开的保护气体控制系统中压力传感器、充气管路、电磁阀以及填充夹爪之间的连接关系示意图。Fig. 5 is a schematic diagram of the connection relationship between the pressure sensor, the inflation pipeline, the solenoid valve and the filling jaw in the shielding gas control system disclosed in the embodiment of the present application.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
针对于现有技术中保护气体的填充质量无法得到保证而造成的焊接质量差的问题，本申请公开了一种焊接过程中保护气体控制方法，以检测保护气体的参数是否达标，当保护气体的参数未达标时，输出告警信号。Aiming at the problem of poor welding quality caused by the inability to guarantee the filling quality of shielding gas in the prior art, this application discloses a shielding gas control method in the welding process to detect whether the parameters of the shielding gas meet the standards. When the shielding gas When the parameters are not up to standard, an alarm signal will be output.
具体的，参见图1，本申请实施例公开的焊接过程中保护气体控制方法，可以包括：Specifically, referring to Fig. 1, the shielding gas control method in the welding process disclosed in the embodiment of the present application may include:
步骤S101：获取保护气体管路中保护气体的压力信号；Step S101: Obtain the pressure signal of the shielding gas in the shielding gas pipeline;
在本申请实施例提供的技术方案中，可以通过压力传感器检测保护气体的压力值，在执行本申请实施例公开的方法之前，可以于现在保护气体管路或者保护气体储存罐中设置压力传感器，当存储罐内的保护气体较少时，罐内或管路中的压力传感器检测到的压力值就会较低，而当存储罐内的保护气体较多时，罐内或管路中的压力传感器检测到的压力值就会较高，通过传感器检测到的压力信号的大小可以直接确定保护气体是否可以有效保证焊接质量。In the technical solution provided by the embodiment of the present application, the pressure value of the shielding gas can be detected by a pressure sensor. Before performing the method disclosed in the embodiment of the present application, a pressure sensor can be installed in the current shielding gas pipeline or the shielding gas storage tank. When there is less protective gas in the storage tank, the pressure value detected by the pressure sensor in the tank or in the pipeline will be lower, and when there is more protective gas in the storage tank, the pressure sensor in the tank or in the pipeline will The detected pressure value will be higher, and the size of the pressure signal detected by the sensor can directly determine whether the shielding gas can effectively guarantee the welding quality.
步骤S102：获取用于表征焊接工位是否有待焊接工件的工件信号；Step S102: Obtain a workpiece signal used to indicate whether there is a workpiece to be welded at the welding station;
当需要有工件焊接时，会将焊接工件放置于焊接工位，本申请可以通过传感器或开关器件直接判定焊接工位是否具有带焊接工件，例如，可以直接在所述焊接工位用于放置工件的位置处设置一按压开关，当在焊接工位放置工件时，放置的工件必然会压住所述按压开关，使得开关导通，此时可将按压开关的状态信号作为所述工件信号，当开关导通时，将表征按压开关的状态信号的值设置为预设参考信号，此时，即可直接通过所述按压开关的状态信号直接判断焊接工位上是否存在待焊接工件。When a workpiece needs to be welded, the welding workpiece will be placed on the welding station. The application can directly determine whether the welding station has a welding workpiece through a sensor or a switch device. For example, it can be used to place the workpiece directly at the welding station. A push switch is set at the position of the welding station. When the workpiece is placed at the welding station, the placed workpiece will inevitably press the push switch to make the switch conduction. At this time, the state signal of the push switch can be used as the workpiece signal. When the switch is turned on, the value representing the state signal of the push switch is set as a preset reference signal. At this time, it can be directly judged whether there is a workpiece to be welded on the welding station through the state signal of the push switch.
当然除了按压开关之外，也可以采用光电开关，将所述光电开关设置在焊接工位上，焊接工位上光电开关之间的区域用于放置焊接件，当该区域放置有待焊接件时，所述待焊接件必然会将光电开关的两部分相隔离，使得光电开关的输出信号发生变化，将变化后的信号的值作为预设参考信号，通过检测所述光电开关的输出信号即可直接判断焊接工位上是否具有待焊接件。Of course, in addition to pressing the switch, a photoelectric switch can also be used, and the photoelectric switch is arranged on the welding station. The area between the photoelectric switches on the welding station is used to place the weldment. When the area is placed to be welded, The parts to be welded will inevitably isolate the two parts of the photoelectric switch, so that the output signal of the photoelectric switch changes, and the value of the changed signal is used as a preset reference signal, and the output signal of the photoelectric switch can be directly detected. Determine whether there is a piece to be welded on the welding station.
在采用传感器判断焊接工位是否有待焊接工件时，可以采用距离传感器、红外传感器或压力传感器等，具体的如何设置这些传感器的位置，可以依据实际需求自行设定，只要其能够在焊接工位有待焊接工件时，能够输出以特定的信号即可。此时获取用于表征焊接工位是否有待焊接工件的工件信号具体为：获取位于保护气体填充工位的工件检测器的输出信号，记为工件信号，当所述工件信号为预设参考信号时，表明焊接工位有待焊接工件，否则，表明焊接工位无待焊接工件。When sensors are used to judge whether there are workpieces to be welded at the welding station, distance sensors, infrared sensors or pressure sensors can be used. How to set the positions of these sensors can be set according to actual needs, as long as they can be welded at the welding station. When welding the workpiece, it is enough to output a specific signal. At this time, obtaining the workpiece signal used to indicate whether the welding station has a workpiece to be welded is specifically: obtaining the output signal of the workpiece detector located at the shielding gas filling station, which is recorded as the workpiece signal, when the workpiece signal is a preset reference signal , indicating that the welding station has a workpiece to be welded, otherwise, it indicates that the welding station has no workpiece to be welded.
步骤S103：判断所述压力信号的值是否位于预设范围之内，如果否，执行步骤S104，如果是，执行步骤S105；Step S103: judging whether the value of the pressure signal is within a preset range, if not, execute step S104, if yes, execute step S105;
在本步骤中，所述预设范围为用户预先设定的一个范围，当保护气体的压力值在该范围之能时，表明保护气体存储罐内的保护气体的量充足，能够保证焊接质量，当其不再预设范围之内时，表明保护气体存储罐内的保护气体量过少，不能为焊接过程提供足够的保护气体，此时需要执行步骤S104，输出用于提示用户保护气体不足的告警信号。In this step, the preset range is a range preset by the user. When the pressure value of the shielding gas is within this range, it indicates that the amount of shielding gas in the shielding gas storage tank is sufficient to ensure the welding quality. When it is no longer within the preset range, it indicates that the amount of shielding gas in the shielding gas storage tank is too small to provide enough shielding gas for the welding process. At this time, step S104 needs to be executed to output a message for prompting the user that the shielding gas is insufficient. warning signal.
步骤S104：输出告警信号；Step S104: outputting an alarm signal;
本步骤的目的主要用于通过所述告警信号提示用户保护气体不足，或保护气体欠压，具体的告警形式可以依据用户需求自行选择，例如，在本申请实施例公开的技术方案中，可以通过蜂鸣器集合灯光告警的方式输出告警信号。其具体过程为：The purpose of this step is mainly to remind the user that the protective gas is insufficient or the protective gas is undervoltage through the alarm signal. The specific alarm form can be selected according to the user's needs. The buzzer outputs the alarm signal in the form of integrated light alarm. The specific process is:
当需要告警时，控制灯光指示电路上的红色警报灯点亮，同时控制蜂鸣器工作。When an alarm is required, the red alarm light on the control light indicating circuit is lit, and the buzzer is controlled to work at the same time.
步骤S105：判断所述工件信号是否为预设参考信号，如果否，继续执行本步骤，如果是，执行步骤S106；Step S105: judging whether the workpiece signal is a preset reference signal, if not, continue to execute this step, if yes, execute step S106;
在本步骤中，所述预设参考信号的具体类型可以指的是焊接工位有待焊接工件的工件信号，其具体形式和大小依据上文中工件信号而定，在本步骤中，当所述工件信号不为预设参考信号时，表明所述焊接工位上没有待焊接工件，此时可继续对所述工件信号进行检测，当检测到所述工件信号为预设参考信号时，表明焊接工位上存在带焊接工件，此时，执行步骤S106。In this step, the specific type of the preset reference signal may refer to the workpiece signal of the workpiece to be welded at the welding station, and its specific form and size are determined according to the workpiece signal above. In this step, when the workpiece When the signal is not a preset reference signal, it indicates that there is no workpiece to be welded on the welding station. At this time, the workpiece signal can continue to be detected. When it is detected that the workpiece signal is a preset reference signal, it indicates that the welder There is a welding workpiece on the position, at this time, step S106 is executed.
步骤S106：当压力信号的值位于预设范围之内且所述工件信号为预设参考信号时，控制保护气体填充系统工作，使得保护气体填充系统为焊接过程提供足够的保护气体；Step S106: When the value of the pressure signal is within a preset range and the workpiece signal is a preset reference signal, control the shielding gas filling system to work so that the shielding gas filling system provides enough shielding gas for the welding process;
在本步骤中，压力信号的值位于预设范围之内表明保护气体量充足，所述工件信号为预设参考信号表明焊接工位上的待焊接工件已经就位，当满足这两个条件是，控制保护气体填充系统工作，使得保护气体填充系统输出保护气体，以保证焊接质量。In this step, if the value of the pressure signal is within the preset range, it indicates that the amount of shielding gas is sufficient, and the workpiece signal is a preset reference signal, indicating that the workpiece to be welded on the welding station is in place. When these two conditions are met, , control the work of the shielding gas filling system, so that the shielding gas filling system outputs shielding gas to ensure welding quality.
通过本申请上述实施例公开的技术方案可见，上述方案能够自行检测保护气体存储罐内的保护气体的压力信号，当检测到所述压力信号位于预设范围之内时，表明保护气体充足，能够满足需求，此时继续通过所述工件信号判断待焊接工件是否就位，当所述工件信号为预设参考信号时，表明待焊接工件也已经就位，此时，控制保护气体填充系统工作，为焊接过程提供足够的保护气体。It can be seen from the technical solutions disclosed in the above embodiments of the present application that the above solutions can automatically detect the pressure signal of the protective gas in the protective gas storage tank. When the pressure signal is detected to be within the preset range, it indicates that the protective gas is sufficient and can To meet the requirements, continue to use the workpiece signal to judge whether the workpiece to be welded is in place. When the workpiece signal is a preset reference signal, it indicates that the workpiece to be welded is also in place. At this time, the protective gas filling system is controlled to work. Provide adequate shielding gas for the welding process.
在本申请实施例公开的技术方案中，为了方便用户及时了解保护气体储气罐中的气体状态，在本申请实施例公开的技术方案中还可以输出用于表征保护气体的压力状态的提示信号，该提示信号也可以以通过指示灯的输出，检测到的所述压力信号的值不同，电量的指示灯不同，用户可以通过点亮的指示灯直接判断保护气体存储罐内的保护气体的量。In the technical solution disclosed in the embodiment of the application, in order to facilitate the user to know the gas state in the protective gas storage tank in time, in the technical solution disclosed in the embodiment of the application, a prompt signal for representing the pressure state of the protective gas can also be output , the prompt signal can also be output through the indicator light, the value of the detected pressure signal is different, the indicator light of the power is different, the user can directly judge the amount of protective gas in the protective gas storage tank through the lighted indicator light .
在本申请另一实施例公开的技术方案中，为了保证保护气体管路出气口的清洁度，防止杂质进入保护气体管路，上述方案中，还可以在所述保护气体管路的管口设置一电磁阀，该电磁阀在断电时处于关闭状态，此时所述保护气体的管路的管口关闭，该电磁阀上电时处于开启状态，此时所述保护气体的管口开启。因此，上述方法中，当压力信号的值位于预设范围之内且所述工件信号为预设参考信号时，还还包括：In the technical solution disclosed in another embodiment of the present application, in order to ensure the cleanliness of the gas outlet of the protective gas pipeline and prevent impurities from entering the protective gas pipeline, in the above solution, it is also possible to set A solenoid valve, the solenoid valve is in the closed state when the power is off, at this time the nozzle of the protective gas pipeline is closed, and the solenoid valve is in the open state when the power is turned on, and the nozzle of the protective gas is opened at this time. Therefore, in the above method, when the value of the pressure signal is within a preset range and the workpiece signal is a preset reference signal, it further includes:
控制位于保护气体输出管路出口的电磁阀开启，使得所述保护气体输出管路出口处于开启状态。The electromagnetic valve located at the outlet of the protective gas output pipeline is controlled to be opened, so that the outlet of the protective gas output pipeline is in an open state.
在本申请实施例公开的技术方案中，所述保护气体的类型可以依据用户需求自行选择，例如，其可以为氮气、二氧化碳或者惰性气体，在本申请实施例公开的技术方案中，所述保护气体优选为氮气，即，上述方法中所述获取保护气体管路中保护气体的压力信号，具体为：In the technical solution disclosed in the embodiment of the present application, the type of the protective gas can be selected according to user needs, for example, it can be nitrogen, carbon dioxide or an inert gas. In the technical solution disclosed in the embodiment of the present application, the protective gas The gas is preferably nitrogen, that is, to obtain the pressure signal of the protective gas in the protective gas pipeline as described in the above method, specifically:
获取保护气体管路中氮气的压力信号，所述氮气作为焊接过程中的保护气体。The pressure signal of nitrogen in the shielding gas pipeline is obtained, and the nitrogen is used as the shielding gas in the welding process.
综合上述各个实施例，本申请还公开了优选的保护气体控制方法，参见图2，该方法可以包括：Based on the various embodiments above, the present application also discloses a preferred protective gas control method, see Figure 2, the method may include:
步骤S201：获取保护气体管路中保护气体的压力信号，执行步骤S202和S203；Step S201: Obtain the pressure signal of the shielding gas in the shielding gas pipeline, and execute steps S202 and S203;
步骤S202：获取用于表征焊接工位是否有待焊接工件的工件信号，执行步骤S204；Step S202: Obtain a workpiece signal used to indicate whether there is a workpiece to be welded at the welding station, and perform step S204;
步骤S203：输出与所述压力信号相匹配的用于表征保护气体存储罐内的气体量的提示信号；Step S203: Outputting a prompt signal matching the pressure signal for representing the gas volume in the protective gas storage tank;
步骤S204：判断所述压力信号的值是否位于预设范围之内，如果否，执行步骤S205，如果是，执行步骤S206；Step S204: judge whether the value of the pressure signal is within a preset range, if not, execute step S205, and if yes, execute step S206;
步骤S205：输出告警信号；Step S205: outputting an alarm signal;
步骤S206：判断所述工件信号是否为预设参考信号，如果否，继续执行本步骤，如果是，执行步骤S207和S208；Step S206: judging whether the workpiece signal is a preset reference signal, if not, continue to execute this step, if yes, execute steps S207 and S208;
步骤S207：控制保护气体填充系统工作，使得保护气体填充系统为焊接过程提供足够的保护气体；Step S207: Control the shielding gas filling system to work so that the shielding gas filling system provides enough shielding gas for the welding process;
步骤S208：控制位于保护气体输出管路出口的电磁阀开启，使得所述保护气体输出管路出口处于开启状态。Step S208: Control the solenoid valve located at the outlet of the protective gas output pipeline to open, so that the outlet of the protective gas output pipeline is in an open state.
针对于上述方法，本申请实施例还提供了包含与上述保护气体控制方法对应的保护气体控制设备，如图3所示，为本申请实施例提供的保护气体控制设备，该设备可以包括：存储器100和处理器200；For the above method, the embodiment of the present application also provides a shielding gas control device corresponding to the above shielding gas control method, as shown in Figure 3, which is the shielding gas control device provided in the embodiment of the present application, the device may include: memory 100 and processor 200;
所述干扰设备还包括通信接口300以及通信总线400，其中，存储器100、处理器200以及通信接口300通信均通过通信总线400实现相互间的通信。The interference device further includes a communication interface 300 and a communication bus 400 , wherein the memory 100 , the processor 200 and the communication interface 300 communicate with each other through the communication bus 400 .
所述存储器100用于存储程序代码；所述程序代码包括计算机操作指令。The memory 100 is used to store program codes; the program codes include computer operation instructions.
存储器100可能包含高速RAM存储器，也可能还包括非易失性存储器(non-volatile memory)，例如至少一个磁盘存储器。The memory 100 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory.
所述处理器200可以是一个中央处理器CPU，或者是特定集成电路ASIC(Application Specific Integrated Circuit)，或者是被配置成实施本发明实施例的一个或多个集成电路。所述处理器200用于调用所述程序代码，当所述程序代码被执行时，用于执行以下操作：The processor 200 may be a central processing unit CPU, or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention. The processor 200 is configured to call the program code, and when the program code is executed, to perform the following operations:
获取保护气体管路中保护气体的压力信号；Obtain the pressure signal of the shielding gas in the shielding gas pipeline;
获取用于表征焊接工位是否有待焊接工件的工件信号；Obtaining a workpiece signal used to indicate whether there is a workpiece to be welded at the welding station;
判断所述压力信号的值是否位于预设范围之内，如果否，输出告警信号，如果是，判断所述工件信号是否为预设参考信号；judging whether the value of the pressure signal is within a preset range, if not, outputting an alarm signal, and if yes, judging whether the workpiece signal is a preset reference signal;
当压力信号的值位于预设范围之内且所述工件信号为预设参考信号时，控制保护气体填充系统工作。When the value of the pressure signal is within a preset range and the workpiece signal is a preset reference signal, the protective gas filling system is controlled to work.
可选的，所述处理器200在执行获取用于表征焊接工位是否有待焊接工件的工件信号时，具体用于：Optionally, when the processor 200 executes acquiring the workpiece signal used to indicate whether there is a workpiece to be welded at the welding station, it is specifically used for:
获取位于保护气体填充工位的工件检测器的输出信号，记为工件信号，当所述工件信号为预设参考信号时，表明焊接工位有待焊接工件，否则，表明焊接工位无待焊接工件。Obtain the output signal of the workpiece detector located at the shielding gas filling station, and record it as the workpiece signal. When the workpiece signal is a preset reference signal, it indicates that the welding station has a workpiece to be welded, otherwise, it indicates that the welding station has no workpiece to be welded .
可选的，在获取保护气体管路中保护气体的压力信号之后所述处理器200还用于执行以下动作：Optionally, after acquiring the pressure signal of the shielding gas in the shielding gas pipeline, the processor 200 is further configured to perform the following actions:
输出用于表征所述保护气体的压力状态的提示信号。Outputting a prompt signal for characterizing the pressure state of the shielding gas.
可选的，在压力信号的值位于预设范围之内且所述工件信号为预设参考信号时，所述处理器还用于执行以下动作：Optionally, when the value of the pressure signal is within a preset range and the workpiece signal is a preset reference signal, the processor is further configured to perform the following actions:
控制位于保护气体输出管路出口的电磁阀开启，使得所述保护气体输出管路出口处于开启状态。The electromagnetic valve located at the outlet of the protective gas output pipeline is controlled to be opened, so that the outlet of the protective gas output pipeline is in an open state.
对应于上述方法和装置，参见图4，本申请还公开了一种保护气体控制系统，该系统应用于焊接系统中，包括：Corresponding to the above method and device, referring to Fig. 4, the present application also discloses a shielding gas control system, which is applied in a welding system, including:
设置于保护气体输出管路中的压力传感器001，所述压力传感器001用于检测并输出保护气体输出管路中的保护气体的压力信号；A pressure sensor 001 arranged in the protective gas output pipeline, the pressure sensor 001 is used to detect and output the pressure signal of the protective gas in the protective gas output pipeline;
用于检测焊接工位是否有待焊接工件的工件检测器002，所述工件检测器002用于输出表征焊接工位上是否存在待焊接工件的工件信号；A workpiece detector 002 for detecting whether there is a workpiece to be welded at the welding station, and the workpiece detector 002 is used to output a workpiece signal indicating whether there is a workpiece to be welded on the welding station;
与所述压力传感器001和工件检测器002相连的控制器003，在本申请实施例公开的技术方案中，所述控制器003的类型可以依据用户需求自行选择，例如，其可以为微处理器或PLC编程控制器等；The controller 003 connected to the pressure sensor 001 and the workpiece detector 002, in the technical solution disclosed in the embodiment of the present application, the type of the controller 003 can be selected according to user needs, for example, it can be a microprocessor Or PLC programming controller, etc.;
与所述控制器003相连的告警系统004；An alarm system 004 connected to the controller 003;
与所述控制器003相连的保护气体输出继电器005；A protective gas output relay 005 connected to the controller 003;
与所述充氮输出继电器005相连的保护气体填充夹爪006；The protective gas filling jaw 006 connected with the nitrogen charging output relay 005;
所述控制器100具有：The controller 100 has:
与告警系统004相连、当压力传感器001输出的压力信号的值没有位于预设范围之内时，向告警系统004输出告警信号的第一接口；A first interface that is connected to the alarm system 004 and outputs an alarm signal to the alarm system 004 when the value of the pressure signal output by the pressure sensor 001 is not within the preset range;
与保护气体输出继电器005相连、当所述压力信号的值位于预设范围之内且所述工件检测器输出的工件信号为预设参考信号时，通过所述保护气体输出继电器005控制保护气体充入保护气体填充夹爪006的第二接口。Connected to the protective gas output relay 005, when the value of the pressure signal is within the preset range and the workpiece signal output by the workpiece detector is a preset reference signal, the protective gas charging is controlled through the protective gas output relay 005 Fill the second port of the jaw 006 with protective gas.
上述系统在工作时，通过压力传感器001检测保护气体存储罐内的保护气体的压力信号，通过工件检测器002检测焊接工位上是否存在待焊接工件，当判定所述压力信号位于预设范围之内且焊接工位上存在待焊接工件时，通过保护气体输出继电器005控制保护气体输出管路中的保护气体充入保护气体填充夹爪006，为焊接过程提供足够的保护气体。When the above system is working, the pressure sensor 001 detects the pressure signal of the protective gas in the protective gas storage tank, and the workpiece detector 002 detects whether there is a workpiece to be welded on the welding station. When it is determined that the pressure signal is within the preset range When there are workpieces to be welded in the welding station, the shielding gas in the shielding gas output pipeline is controlled by the shielding gas output relay 005 to be filled into the shielding gas filling jaws 006 to provide sufficient shielding gas for the welding process.
与上述方法相对应，所述告警系统包括：Corresponding to the above method, the warning system includes:
蜂鸣器和故障指示灯，所述故障指示灯在未收到告警信号时不点亮，当收到告警信号时显示红色，所述蜂鸣器在收到告警信号时蜂鸣报警，否则其不动作。A buzzer and a fault indicator light, the fault indicator light does not light up when no warning signal is received, and displays red when an alarm signal is received, and the buzzer buzzes an alarm when it receives an alarm signal, otherwise its no action.
与上述方法相对应，所述工件检测器为具体可以为按压开关、光电开关、距离传感器、红外传感器或压力传感器等，当工件检测器为按压开关时，按压开关设置于焊接工位上用于放置焊接件的位置处，当在焊接工位放置工件时，放置的工件必然会压住所述按压开关，使得开关导通。当所述工件检测器为光电开关时，将所述光电开关设置在焊接工位上，所述光电开关的两部分通过所述焊接工位上放置焊接件的区域隔离，当放置待焊接工件时，将所述带焊接工件放置在所述光电开关的中间区域，此时光电开关被隔离，当所述光电开关被待焊接件遮挡时，输出大小为预设参考信号的工件信号。Corresponding to the above method, the workpiece detector can be specifically a push switch, a photoelectric switch, a distance sensor, an infrared sensor or a pressure sensor, etc. When the workpiece detector is a push switch, the push switch is set on the welding station for At the position where the weldment is placed, when the workpiece is placed at the welding station, the placed workpiece will inevitably press the push switch, so that the switch is turned on. When the workpiece detector is a photoelectric switch, the photoelectric switch is arranged on the welding station, and the two parts of the photoelectric switch are separated by the area where the weldment is placed on the welding station, when the workpiece to be welded is placed , placing the strip welding workpiece in the middle area of the photoelectric switch, at this time the photoelectric switch is isolated, and when the photoelectric switch is blocked by the piece to be welded, a workpiece signal whose magnitude is a preset reference signal is output.
与上述方法相对应，上述系统还可以包括：Corresponding to the above method, the above system may also include:
与所述控制器相连的保护气体状态指示器，所述保护气体状态指示器用于显示与所述压力传感器的输出信号相匹配的保护气体的压力状态。A shielding gas state indicator connected to the controller, the shielding gas state indicator is used to display the pressure state of the shielding gas matching the output signal of the pressure sensor.
在本申请实施例公开的方案中，所述气体状态指示器可以为灯光指示器，当所述压力信号位于预设范围之内且大于第一预设值时，所述灯光指示器绿灯点亮，当所述压力信号位于预设范围之内且小于第一预设值时，所述灯光指示器黄灯点亮。其中，上文所述的告警系统中的故障指示灯也可以指的是于所述灯光指示器中的指示灯，即，例如，将灯光指示器中的红灯作为故障指示灯，当所述压力信号没有位于预设范围之内时，控制所述灯光指示器中的故障指示灯(红灯)点亮。In the solution disclosed in the embodiment of the present application, the gas status indicator may be a light indicator, and when the pressure signal is within a preset range and greater than a first preset value, the green light of the light indicator is on , when the pressure signal is within a preset range and less than a first preset value, the yellow light of the light indicator is turned on. Wherein, the fault indicator light in the above-mentioned warning system can also refer to the indicator light in the light indicator, that is, for example, the red light in the light indicator is used as the fault indicator light, when the When the pressure signal is not within the preset range, the fault indicator light (red light) in the light indicator is controlled to light up.
与上述方法相对应，本申请实施例公开的技术方案中，所述保护气体为氮气。Corresponding to the above method, in the technical solutions disclosed in the embodiments of the present application, the protective gas is nitrogen.
与上述方法相对应，参见图5，上述系统还可以包括：Corresponding to the above method, referring to Figure 5, the above system may also include:
设置于保护气体输出管路出口的电磁阀007，所述电磁阀用于控制保护气体输出管路出口的开启状态。The electromagnetic valve 007 is arranged at the outlet of the protective gas output pipeline, and the electromagnetic valve is used to control the opening state of the outlet of the protective gas output pipeline.
为了描述的方便，描述以上系统时以功能分为各种模块分别描述。当然，在实施本申请时可以把各模块的功能在同一个或多个软件和/或硬件中实现。For the convenience of description, when describing the above system, the functions are divided into various modules and described separately. Of course, when implementing the present application, the functions of each module can be realized in one or more pieces of software and/or hardware.
本说明书中的各个实施例均采用递进的方式描述，各个实施例之间相同相似的部分互相参见即可，每个实施例重点说明的都是与其他实施例的不同之处。尤其，对于系统或系统实施例而言，由于其基本相似于方法实施例，所以描述得比较简单，相关之处参见方法实施例的部分说明即可。以上所描述的系统及系统实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。Each embodiment in this specification is described in a progressive manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment. The systems and system embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is It can be located in one place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without creative effort.
专业人员还可以进一步意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各示例的组成及步骤。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。Professionals can further realize that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, computer software or a combination of the two. In order to clearly illustrate the possible For interchangeability, in the above description, the composition and steps of each example have been generally described according to their functions. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.
结合本文中所公开的实施例描述的方法或算法的步骤可以直接用硬件、处理器执行的软件模块，或者二者的结合来实施。软件模块可以置于随机存储器(RAM)、内存、只读存储器(ROM)、电可编程ROM、电可擦除可编程ROM、寄存器、硬盘、可移动磁盘、CD-ROM、或技术领域内所公知的任意其它形式的存储介质中。The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be directly implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known storage medium.
还需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。而且，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。It should also be noted that in this article, relational terms such as first and second etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations Any such actual relationship or order exists between. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
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