摘要:
A system comprises light intensity detection circuitry and pixel data processing circuitry. The light intensity detection circuitry is operable to determine whether a welding arc is present based on an intensity of light incident captured by the light intensity detection circuitry, and generate a control signal indicating a result of the determination. A mode of operation of the image processing circuitry may be selected from a plurality of modes based on the control signal. The light intensity detection circuitry may comprise, for example, a passive infrared sensor, a photodiode, and/or circuitry of a camera. The pixel data processing circuitry may comprise, for example, circuitry of a camera, a special purpose graphics processing unit, and/or a general purpose processing unit.
摘要:
An embodiment of a system includes a marking tool (545) configured to apply one or more markers (543) on a first surface of a workpiece (539) for a live welding session. The one or more markers (543) have known geometric properties that may facilitate determination of the first surface and a weld joint. An embodiment of a method includes applying a first set of one or more markers (543) to a first surface of a workpiece (539), detecting the applied first set of one or more markers with a camera, and determining, via processing circuitry coupled to the camera, at least one of the first surface of the workpiece (539) and a weld joint based at least in part on the detected first set of one or more markers (543).
摘要:
The invention is a sensor (15) for welding and/or cutting systems comprising a generator (4), a welding and/or cutting torch (1) and a connection element (40) comprising one or more power supply cables (lib) of the torch and/or one or more control cables of the torch; the sensor (15) is such that it is suited to detect the passage of current in at least one of said one or more cables of the connection element (40); the sensor (15) is such that it comprises a ferromagnetic circuit (19) that at least partially envelops said at least one of said one or more cables of the connection element (40) and a Hall sensor (18). The invention furthermore concerns a welding and/or cutting unit comprising a current sensor (15).
摘要:
A welding system (10) includes a repositionable temperature sensor (32). The repositionable temperature sensor (32) is configured to detect temperatures corresponding to a workpiece (28) and to provide temperature data corresponding to the detected temperatures. The welding system (10) also includes a power supply (12) configured to receive the temperature data from the temperature sensor. The power supply (12) is configured to modify control of an output of the power supply based on the detected temperature.
摘要:
This invention relates to a welding unit comprising a welding device (1) and a protection unit (28), in particular a protective screen (29) for an operator or a welder. The protection unit (28) has an electrically operable, commandable- and/or controllable visor (31) with a control device (32). The welding device (1) or the welding unit is at least composed of an electrical source (2), a welding torch (10) and a control unit. The protection unit (28) has a transmitter and/or a receiver (33), which is connected to the control device (32). The transmitter and/or receiver (33) is connected to the welding unit or welding device (1) or the welding torch (10) via a connecting cable (35) or by wireless means. Darkening of the protective visor (31) occurs after the control unit or the welding torch sends out a signal to the transmitter and/or receiver (33) which is relayed to the control device (32) after activation of a start switch (27) disposed on a welding torch (10) or on the welding device (1) or by virtue of a start command.
摘要:
A system in accordance with an example implementation of this disclosure comprises welding headwear to be worn by a welder during a live welding operation, the headwear comprising: a camera operable to capture an image of a live welding operation; circuitry operable to analyze the captured image to determine a characteristic of the live welding operation, and associate the characteristic with the captured image; and memory operable to store the captured image and the associated characteristic for later retrieval. The headwear may comprise a communication interface operable to communicate with a remote server. The determined characteristic may comprise a welding parameter of a welding torch in the captured image. The determined characteristic may comprise a setting, or measured output, of welding equipment that powers and/or feeds wire to a torch being used in the live welding operation.
摘要:
An inductive heating (34) is added to a metal working process, such as a welding process, by an induction heating head (36). The induction heating head (36) may be adapted specifically for this purpose, and may include one or more coils to direct and place the inductive energy, protective structures, and so forth. Productivity of a welding process may be improved by the application of heat from the induction heating head (36). The heating is in addition to heat from a welding arc (50), and may facilitate application of welding wire electrode materials into narrow grooves and gaps, as well as make the processes more amenable to the use of certain compositions of welding wire, shielding gasses, flux materials, and so forth. In addition, distortion and stresses are reduced by the application of the induction heating energy in addition to the welding arc source.
摘要:
Inductive heating is added to a metal working process, such as a welding process, by an induction heating head. The induction heating head is adapted specifically for this purpose, and includes one or more coils 36 to direct and place the inductive energy, protective structures, and so forth. Productivity of a welding process may be improved by the application of heat from the induction heating head. The heating is in addition to heat from a welding arc 50, and may facilitate application of welding wire electrode materials into narrow grooves and gaps, as well as make the processes more amenable to the use of certain compositions of welding wire, shielding gasses, flux materials, and so forth. In addition, distortion and stresses are reduced by the application of the induction heating energy in addition to the welding arc source.
摘要:
An automatic-darkening filter 10, 10' that comprises a first polarizer 14, a second polarizer 18, a first liquid-crystal cell 16, and a sensor 64. The first polarizer 14 has a first polarization direction, and the second polarizer 18 has a second polarization direction. The liquid crystal cell 16 is disposed between the first and second polarizers 14, 18 and contains first and second optically-transparent, flexible, glass layers 40 and 42 with the liquid crystal layer 48 being located between these layers. The sensor 64 detects incident light and causes a signal to be sent, which causes molecular rotation within the liquid crystal layer. The inventive automatic-darkening filter is beneficial in that overall product weight can be reduced and the view field can be increased.