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| Number | Title | Issue Date |
| 7498542 | Control method and system for a trackless autonomous crawling all-position arc welding robot with wheels and permanent magnet caterpillar belts A method and system are provided for a trackless autonomous crawling all-position arc welding robot with wheels and permanent magnet caterpillar belts. A sensor detects a welding seam position and transmits the position to a tracking controller. The tracking control... | 03/03/2009 |
| 7130718 | Pathcorrection for an industrial robot A method for an industrial robot to increase accuracy in movements of the robot. A first path is formed by bringing a tool supported by the robot to adopt a plurality of generated positions. A plurality of observed positions of the tool moving along the first path a... | 10/31/2006 |
| 6903300 | Method for thermally working a workpiece, thermal working machine therefor, and cutting or welding tool suited for use in the working machine A thermal working tool (1) is movable along a workpiece surface (7) and includes a torch head (2) which has exchangeably mounted thereon cutting or welding tools (3; 4; 5) extending between the torch head (2) and the workpiece surf... | 06/07/2005 |
| 6617547 | Arc stray controlling welding apparatus A welding apparatus controlling a position of a welding arc, having a welding head housing an electrode producing the welding arc in a working zone. The apparatus has an electromagnet compensating a magnetic field in the working zone and at least two phot... | 09/09/2003 |
| 5783921 | Welding robot with base stand having self contained welding power source A robot body has an articulated manipulator arm having a welding tool. The robot body is installed on a base stand housing electric circuits including a welding power source. The electric circuits provide for driving and controlling the welding tool. The ... | 07/21/1998 |
| 5728991 | Plasma arc welding apparatus and welding method using the same There is provided a plasma arc welding apparatus which comprises a plasma torch and a spacing retention member which is securely fixed to the plasma torch and whose frontal end is located between a frontal end of the plasma torch and a weld workpiece and ... | 03/17/1998 |
| 5572102 | Method and apparatus for vision control of welding robots A vision system for controlling welding robots and a method of controlling a welding robot using a vision system are disclosed. The vision system includes an ordinary unoriented light source, such as a fluorescent light source, to illuminate a part to be ... | 11/05/1996 |
| 5468929 | Apparatus for adjusting the stand-off height of a plasma arc torch or the like The stand-off height of a plasma arc torch relative to an underlying workpiece is adjusted by rotating a collar on an adaptor to which the torch is affixed. When the collar is rotated, a camming action occurs to effect upward or downward movement of the t... | 11/21/1995 |
| 5225658 | Stopping a plasma arc cutter upon completion of cutting In a plasma arc cutter and a method of controlling the same, a rise compensating circuit (39) and a shift compensating circuit (44) both composed of a charging and discharging capacitor and a resistor are respectively inserted in parallel between an elect... | 07/06/1993 |
| 5043554 | Plasma-arc cutting apparatus having means for deflecting plasma arc A plasma-arc cutting apparatus having a plasma torch producing a plasma arc and cutting a workpiece with the plasma arc, the plasma torch including a nozzle from whcih the plasma arc is ejected toward the workpiece; a feed device moving the plasma torch r... | 08/27/1991 |
| 4876432 | Method for controlling a penetration bead A method for controlling a penetration bead, in an automatic one-side gas shielded arc welding wherein the backing material is adhered to the back of work pieces along a weld line and the welding is effected automatically from the surface side of the work... | 10/24/1989 |
| 4827101 | Method for controlling a bead A method for controlling a bead, in one-side automatic welding wherein a backing metal strip is adhered to the back side of a pair of work pieces through an inorganic material and arc welding is applied to the work pieces on the surface side thereof, comp... | 05/02/1989 |
| 4764657 | Automatic tab plate welding apparatus An automatic tab plate welding apparatus welds a tab plate to the predetermined corner of a plate. A tab plate table supports the tab plate and determines the position of the tab plate relative to the forward direction of the plate, the widthwise directio... | 08/16/1988 |
| 4745259 | Automatic corner welding adapter A device to which may be attached plates to be welded along a common corner line edge and a welding torch driven by a lead screw such that the plates are fuze welded together beginning and ending at arbitrary preset locations.... | 05/17/1988 |
| 4677275 | Method and sensor arrangement for tool/workpiece spacing control in electric arc processing machines In a processing machine which operates with an arc, for example, a burning cutting installation, the arc current is measured and regulating signals are derived from the measurement value for the purposes of regulating the tool-workpiece spacing. In that p... | 06/30/1987 |
| 4664587 | Robotics tool carrier assembly A high response servodriven robotics tool carrier assembly is especially well adapted for carrying a tool, such as an arc welding torch. The robotics tool carrier assembly mounts the torch such that its tip is on the center line of the arm rotation axis o... | 05/12/1987 |
| 4570049 | Band welding installation for joining plates, sheet bars, and bands A band welding installation includes a welding machine having a control device and a welding torch for joining ends of pieces in a band processing line transverse to the direction of the band run. At least two sensor units are coupled ahead of the torch f... | 02/11/1986 |
| 4562391 | Robotic positioning system A robotic positioning system is provided which comprises a base portion; a plurality of interconnected arm members mounted on the base portion and having respective axes of movement; a hand member carried at a distal end of the arm members for supporting ... | 12/31/1985 |
| 4538046 | Precise positioning for a welding electrode which follows a three dimensional weld path A welding apparatus which includes a welding electrode and a filler wire assembly. The welding electrode and the filler wire assembly are fixed together and are to move along a weld path on a workpiece. The weld path may either take a regular or an irregu... | 08/27/1985 |
| 4515521 | Welding torch apparatus A welding torch is disclosed in combination with an industrial robot, the industrial robot having an arm and a wrist at one end thereof, the wrist including a rotary casing having a rotary shaft extending in a direction along the axis of the arm and a pai... | 05/07/1985 |
| 4491715 | Apparatus for gas-shielded arc welding An apparatus for gas-shielded arc welding comprises a mechanism (1) for guiding and feeding an electrode to a welding zone (3), a nozzle (4) for feeding a protective gas medium to the welding zone (3) and a TV transmission camera (6) for realtime monitori... | 01/01/1985 |
| 4446353 | Center tracking welder unit with floating reference A floating reference voltage is generated in response to the low frequency components of weld current and is utilized in the control of the width of travel of a welding arc back and forth across a gap to be filled with weld metal. The arc current is integ... | 05/01/1984 |
| 4378483 | Device for moving a welding torch during the welding of seams, especially of circumferential seams A device for moving a welding torch during the welding of seams, particularly circumferential seams, includes a chassis driven by a feed motor with a feed motor control unit and includes a decelerating/accelerating device for the feed motor.... | 03/29/1983 |
| 4368375 | Welding torch oscillating mechanical apparatus Apparatus for manipulating a welding torch independently along two axes. A torch support is provided to carry a welding torch or the like, and a motor is operatively coupled to position the torch support along a first path of travel relative to the weld j... | 01/11/1983 |
| 4356378 | Apparatus for automatically guiding a welding gun along a programmed welding seam A welding robot having an elongated arm pivotally mounted on an upright turret which is movable about the upright axis thereof. As a result, the arm is swingable about the aforesaid upright axis. A fine movement control device or commuter is mounted on an... | 10/26/1982 |
| 4284871 | Automatic adjustment of the initial height of a flame cutter to a workpiece The initial height of a flame cutter to a workpiece located under a liquid is automatically adjusted by jointly moving the flame cutter and a sensor toward the workpiece before the cutting operation until the sensor touches the workpiece surface whereupon... | 08/18/1981 |
| 4270037 | Arc welding machine using non-consumable electrode An arc welding machine using non-consumable electrode comprises a welding head the body of which accommodates two non-consumable electrodes arranged at an angle to a passage formed therein and intended for a filler wire to extend therethrough. The welding... | 05/26/1981 |
| 4233489 | Method of and device for plasma MIG-welding Plasma-MIG welding wherein a plasma arc is initially established between a non-consumable electrode and a workpiece to initate and sustain a non-deviated plasma flow therebetween, welding wire is supplied along a path generally parallel to but laterally d... | 11/11/1980 |
| 4229642 | Automatic welding apparatus for long workpieces An automatic welding apparatus including a movable welding torch carried by a composite frame adapted to control the relative position of the torch with respect to a workpiece holder. Either the workpiece holder or composite frame may be supported on a mo... | 10/21/1980 |
| 4225770 | Welding tubular armature tabs using TIG Non-continuous forms are welded on an automatic device using a continuous welding process (e.g., Tungsten Inert Gas Process (TIG) with a continuous welding arc. The noise level of the welding system is below that which is prescribed by the Operational Saf... | 09/30/1980 |
| 4219723 | Automatic welding machine with three-dimensional cam driven motion An automatic welding machine of a type, in which a welding torch is subjected to predetermined three-dimensional locus motions by means of three profile cams for controlling movement of the torch in the left-and-right, up-and-down, and front-and-back dire... | 08/26/1980 |
| 4194106 | Methods and devices for cutting, eroding, welding and depositing metallic and non-metallic materials by means of an electric arc The trajectory and speed of a turning electric arc in a device for cutting, eroding, welding or depositing material are controlled by varying the voltage and frequency of a polyphase current supplied to pole pieces disposed about the arc. The arc may be f... | 03/18/1980 |
| 4186480 | Method of manufacturing a rotatable magnetic head arrangement A method of manufacturing a rotatable magnetic head arrangement in which at least one magnetic head provided on a disc-shaped carrier in a given position with respect to a reference surface provided on the carrier is laser machined to form a gap width of ... | 02/05/1980 |
| 4169224 | Apparatus for obtaining feedback signals for controlling a parameter of an arc welding machine Apparatus is provided for controlling a parameter of an arc welding machine, such as the height and/or the lateral position of the welding tool. The apparatus includes a parallel circuit having first and second branches connected to a source of voltage, w... | 09/25/1979 |
| 4161640 | Orbital welding torch The orbital welding torch described herein has a horse-shoe shaped body arranged to engage partially around the tubes to be butt welded when inserted from one side of the tubes, and a crescent shaped table carrying a welding head which is rotatably carrie... | 07/17/1979 |
| 4151390 | Tool holder head, particularly for welding yokes and guns A tool holder head, particularly for supporting a welding yoke or gun in a welding machine, enables the welding gun to be moved in three degrees of freedom. The head comprises a bushing rigidly mounted on a movable support member of the machine and three ... | 04/24/1979 |
| 4119828 | Method of plasma multiarc welding by permanently burning direct-current arcs A method of plasma multiarc welding by permanently burning direct-current arcs of different polarities makes use of a plasma forming gas and shielding mediums and the arcs are located so that the adjacent arcs have opposite polarities, consisting, accordi... | 10/10/1978 |
| 4037077 | Battery welding method A welding method for joining lead parts together in a lead-based battery is disclosed using an inert gas-shielded, non-consumable electrode and an ingot-like mold surrounding the lead parts to be fused. The electrode arc is struck substantially directly o... | 07/19/1977 |
| 4021840 | Seam tracking welding system A welding system in which a welder automatically tracks the seam to be welded. This is an automatic servo-driven tracking system employing a raster-scan television camera as an optical sensor. The camera is aimed at the seam area in advance of a cross-sli... | 05/03/1977 |
| 3993889 | Seam tracking method improvement This invention is for a method for controlling the motion of an electron beam gun with respect to a workpiece so that the electron beam will follow the path along the seam between the two parts which are to be welded. The electron beam scans the seam in a... | 11/23/1976 |
