Metal fusion bonding – Process – With condition responsive – program – or timing control
Reexamination Certificate
2000-08-04
2001-11-13
Dunn, Tom (Department: 1725)
Metal fusion bonding
Process
With condition responsive, program, or timing control
C219S130100
Reexamination Certificate
active
06315186
ABSTRACT:
The invention relates to a control device for a welding apparatus.
Control devices for welding devices are already known, in which an input device and a display device are provided on the welding torch. The individual operating elements of the input device and the display device are directly connected via lines to the control device, in particular the microprocessor of the welding torch, so that a control procedure can be initiated from the welding torch by operating one of the operating elements of the welding torch. Any changes or adjustments activated are displayed on the display device on the welding torch so that the user can take a reading of the changes from the display device at any time. The disadvantage of this arrangement is that a plurality of lines are needed to connect the individual operating elements to the control device, which means that a correspondingly thick conduit pack is needed to connect the welding apparatus to the welding torch, thereby restricting the flexibility of the welding torch during use.
The underlying objective of this invention is to provide a control device which allows a simple transmission of data between the welding torch and the welding apparatus.
This objective of the invention is achieved by providing a data bus or a field bus, a serial data transmission can be operated with any number of control sequences or control procedures between the welding torch and the welding apparatus. Another advantage resides in the fact that by using a data bus, many welding torches of different types can be connected to the welding apparatus since there is no longer any need to modify the hardware to suit the different welding torches because the welding apparatus can be extended by making simple adjustments to the software.
Another embodiment offers advantages because the lines between the active and passive components and the input device and output device are kept short, thereby keeping external influences on the lines to a minimum.
An advantage is to be gained by using a standardised data bus, a connection with external control devices or with PCs can be set up at any time.
The advantage is that the number of lines needed for the data transmission can be reduced whilst simultaneously operating several components by means of the bus line system.
An advantageous embodiment is because any number of different control sequences can be transmitted to the welding apparatus via the input device or output device.
Another advantage is because any number of operating elements can be provided on the welding torch whilst requiring only a small number of lines for the data bus in order to transmit data.
An advantage is also to be had by using a standardised data bus, any number of welding torches can be connected to the welding apparatus, offering the user a high degree of flexibility.
An embodiment offers an advantage in that the control device can be automatically adapted to the respective welding torch.
An advantageous embodiment provides a welding apparatus with an appropriate data bus that is inexpensive to manufacture.
Also of advantage is when new developments emerge in welding torches or if a different welding torch is used, the software in the welding apparatus simply has to be changed in order to be able to connect the welding torch to a welding apparatus of an older design.
The advantage to be gained from an embodiment is that it offers the option of networking several control devices with the control device of the welding apparatus so that a production sequence can be accessed through the control device of the welding apparatus.
An embodiment is also advantageous because it offers a simple means of providing a data transmission in which external effects can be largely be avoided by using an optical conductor.
The advantage is that it provides the user with an additional input option.
An embodiment is of advantage because the lines needed for data transmission can be reduced.
Finally, an embodiment is of advantage because it allows the user to change at least one welding parameter during the welding process, thereby enabling optimum adaptation of the welding process to the most varied of conditions.
REFERENCES:
patent: 4144992 (1979-03-01), Omae et al.
patent: 5458048 (1995-10-01), Hohner
patent: 5717385 (1998-02-01), Kogure
patent: 5837968 (1998-11-01), Rohrberg et al.
patent: 5941966 (1999-08-01), Gotze et al.
patent: 5966308 (1999-10-01), Kazirskis et al.
patent: 5978593 (1999-11-01), Sexton
patent: 0 463 489 (1991-06-01), None
patent: WO 91/01842 (1991-02-01), None
X.M. Zeng et al, “High-frequency TIG-welding Power Supply with Microprocessor Control”, IEEE Proceedings A, vol. 137, No. 4, Jul. 1990, XP000132845 (Herts, GB).
Friedl Helmut
Niedereder Franz
Collard & Roe P.C.
Dunn Tom
FROMIUS Schweissmaschinen Produktion GmbH & Co. KG
Johnson Jonathan
LandOfFree
Control device for a welding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control device for a welding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control device for a welding apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2603621