Patent application number | Description | Published |
20090014497 | APPARATUS FOR WELDING UPPER AND LOWER PLATES OF METAL SEPARATING PLATE OF FUEL CELL - Provided is an apparatus for welding upper and lower plates of a metal separating plate of a fuel cell which can simplify the welding of a separating plate, improve welding and watertight performance, and prevent the thermal deformation of a separating plate. The apparatus includes a supporting unit which is disposed below a main body and on which the metal separating plate is safely seated; a friction stir unit which faces the supporting unit, and welds the metal separating plate using a friction stir welding method; and a temperature control unit which is disposed either at the friction stir unit or at the supporting unit, measures a temperature of at least a portion of the metal separating plate during the welding, and controls an operation of the friction stir unit so that the temperature of the metal separating plate can be maintained within a predetermined range. | 01-15-2009 |
20140166628 | TWIN SPOT WELDING APPARATUS - A twin spot welding apparatus includes a fixed welder in a fixed frame on a top of which a mounting unit of a robot arm is integrally formed, a guide plate mounted on the fixed frame, an angle control plate movably installed in the guide plate, a servo actuator mounted on the fixed frame to move the angle control plate on the guide plate, and a moving welder formed so that a slope of the moving welder may be controlled by an angle control unit on the angle control plate and formed in a moving frame so that, when the servo actuator and the angle control unit are operated, movement from the fixed welder and the slope of the moving welder are controlled so that a pitch and a slope between welding points of the fixed welder and the moving welder vary. | 06-19-2014 |
20140183167 | WELDING DEVICE FOR PANEL SHEETS AND WELDING METHOD FOR THE SAME - A method of welding panels overlapping each other includes a one-directional clamping step that performs one-directional clamping by positioning electrodes of a pair of one-directional spot welding guns with respect to an upper panel and a lower panel overlapping each other, a pressure welding step that forms a plurality of pressure welding portions in a zero gap status by pressure-welding the upper panel to the lower panel in a temporary welding status, by pressing and supplying electricity to the upper panel with the electrodes of the one-directional spot welding guns, plasma spot step that forms a molten portion between the pressure welding portions by performing plasma welding on the pressure welding portions with a plasma welding machine, and a cooling step that forms a welded portion by overlapping the pressure welding portions and the molten portion between the upper panel and the lower panel by cooling the molten portion. | 07-03-2014 |
20140298636 | JOINT GUARANTEE SYSTEM FOR VEHICLE ASSEMBLY AND CONTROL METHOD OF THE SAME - A system and method for vehicle assembly may include a vehicle body sensing unit sensing positions of vehicle bodies conveyed at regular intervals along a vehicle body convey line, a tool sensing unit disposed on a fastening tool for assembling parts to a vehicle body and sensing movement displacement of the fastening tool with respect to an origin of the fastening tool, a tool controller that transmits a fastening torque value of a predetermined part to the fastening tool in accordance with the movement displacement of the fastening tool and records an accumulated value of the movement displacement of the fastening tool, and a main controller that stores a result value of fastening the part, corresponding to a vehicle number of the vehicle body, on the basis of the accumulated value of the movement displacement of the fastening tool and positional information of the vehicle body. | 10-09-2014 |
20150018999 | JOINT GUARANTEE SYSTEM FOR VEHICLE ASSEMBLY AND CONTROL METHOD OF THE SAME - A joint guarantee system for vehicle assembly is applied to a vehicle assembly line that assembles an assembling object to a vehicle carried through on a conveyer line as an assembling element, and includes a vehicle detector that detects the vehicle entering the conveyer line, tool detectors disposed along the conveyer line that detect a position of an assembling tool on the conveyer line, an inertial sensor module installed in the assembling tool that detects an angle and a displacement of the assembling tool for an assembling point of the vehicle and the assembling object, a tool controller that applies control signals corresponding to a predetermined assembling point of the vehicle and the assembling object, a kind of assembling element, and assembling torque of the assembling tool, to the assembling tool, and a main controller that processes and stores the above information. | 01-15-2015 |
20150045929 | JOINT GUARANTEE SYSTEM FOR VEHICLE ASSEMBLY AND CONTROL METHOD OF THE SAME - A fastening guarantee system for vehicle assembly is used in a vehicle assembly line for assembling a fastening object to a vehicle body conveyed on a conveyer line with fastening members. The system may include i) a vehicle body sensing unit that senses a vehicle body entering the conveyer line and the distance to the vehicle body, ii) a plurality of tool sensing units at predetermined intervals along the conveyer line that senses the position of a fastening tool, iii) an inertia sensor module that senses the angle and the displacement of the fastening tool, iv) a tool controller, and v) the fastening tool. | 02-12-2015 |
20150090699 | SPOT WELDING APPARATUS - A spot welding apparatus includes: a fixed frame installed in an arm of a robot; an upper welding gun installed in one side of the fixed frame and reciprocating up and down through a pressurization unit; a rotary unit rotatably installed in a lower side of the fixed frame; and a plurality of lower welding guns installed through the rotary unit to correspond to the upper welding gun. | 04-02-2015 |
20150102018 | SPOT WELDING APPARATUS - A spot welding apparatus according to is provided that includes an upper and lower moving unit, an upper welding gun, a left and right moving unit and a lower welding gun. In particular, the upper and lower moving unit includes a slide block that is provided at one side of an arm of a robot to move vertically by actuation of an actuator. The upper welding gun is mounted on the slide block and the left and right moving unit is installed at one side of the upper welding gun to horizontally move the upper welding gun by actuation of the actuator. Additionally, the lower welding gun is mounted to correspond to a lower side of the upper welding gun. | 04-16-2015 |