Abstract: A spot welding apparatus includes a stationary frame having a housing formed therein. An upper welding gun is mounted to a length direction of a pressing unit disposed in the housing of the stationary frame. A plurality of lower welding guns are mounted on an outside of the stationary frame and ends of the plurality of lower welding guns selectively face one end of the upper welding gun in a length direction of the lower welding guns by the plurality of lower welding guns. A plurality of actuators are mounted on the outside of the stationary frame. A plurality of link units are disposed between the actuators and the lower welding guns, connect the actuators and the lower welding guns, respectively, and rotate as the actuators are operated.

Abstract: An all-in-one jigless projection loading system for a vehicle is adapted to load and assemble a body component to a vehicle body. The all-in-one jigless projection loading system may include: a fixing bracket fixed to an arm of a robot; a position adjusting member rotatably mounted to the fixing bracket; a gripper mounted to the fixing bracket to be movable backward and forward, and gripping the body component; an array unit mounted to the position adjusting member, and arraying the body component; and a welding unit mounted to the fixing bracket, and projection-welding the body component to a vehicle body.

Abstract: A spot welding apparatus includes a stationary frame having a housing formed therein. An upper welding gun is mounted to a length direction of a pressing unit disposed in the housing of the stationary frame. A plurality of lower welding guns are mounted on an outside of the stationary frame and ends of the plurality of lower welding guns selectively face one end of the upper welding gun in a length direction of the lower welding guns by the plurality of lower welding guns. A plurality of actuators are mounted on the outside of the stationary frame. A plurality of link units are disposed between the actuators and the lower welding guns, connect the actuators and the lower welding guns, respectively, and rotate as the actuators are operated.

Abstract: An all-in-one jigless projection loading system for a vehicle is adapted to load and assemble a body component to a vehicle body. The all-in-one jigless projection loading system may include: a fixing bracket fixed to an arm of a robot; a position adjusting member rotatably mounted to the fixing bracket; a gripper mounted to the fixing bracket to be movable backward and forward, and gripping the body component; an array unit mounted to the position adjusting member, and arraying the body component; and a welding unit mounted to the fixing bracket, and projection-welding the body component to a vehicle body.

Abstract: A spot welding apparatus includes a stationary frame having a housing formed therein. An upper welding gun is mounted to a length direction of a pressing unit disposed in the housing of the stationary frame. A plurality of lower welding guns are mounted on an outside of the stationary frame and ends of the plurality of lower welding guns selectively face one end of the upper welding gun in a length direction of the lower welding guns by the plurality of lower welding guns. A plurality of actuators are mounted on the outside of the stationary frame. A plurality of link units are disposed between the actuators and the lower welding guns, connect the actuators and the lower welding guns, respectively, and rotate as the actuators are operated.

Abstract: 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.

Abstract: A spot welding apparatus may include a fixed welding machine coupled to a fixing frame having a mounting portion mounted on an arm of a robot, a guide plate mounted on the fixing frame, one or more moving welding machines mounted to be selectively and slidingly movable along a longitudinal direction of the guide plate, and an operating unit configured to selectively move the moving welding machine.

Abstract: 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.

Abstract: 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.

Abstract: A device for adhering different kinds of materials is configured to adhere a metal material and a composite material having an adhering hole. The device includes a frame having first and second free ends that face each other. A laser head is provided at the first free end of the frame and irradiates a laser beam to an adhering point of the metal material. An upper tool moves back and forth at the first free end of the frame and presses the metal material. A lower tool is fixed to the second free end of the frame so as to correspond to the upper tool and supports an adhering point of the composite material. An air suction member is connected to the lower tool to suck air between the lower tool and the adhering hole of the composite material.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A spot welding apparatus is provided that includes a fixation panel mounted on an arm of a robot. An upper welding gun is vertically installed on a front of the fixation panel, reciprocatesvertically through a pressing unit and moves horizontally toward the fixation panel. A left and right moving unitis installed between the fixation panel and the pressing unit to move the upper welding gun horizontally. Further, two or more lower welding guns are horizontally disposed to correspond to the upper welding gun, and an upper and lower moving unit are installed on the fixation panel to reciprocate the lower welding gun vertically.

Abstract: A spot welding apparatus is provided that includes a fixation panel mounted on an arm of a robot. An upper welding gun is vertically installed on a front of the fixation panel, reciprocatesvertically through a pressing unit and moves horizontally toward the fixation panel. A left and right moving unitis installed between the fixation panel and the pressing unit to move the upper welding gun horizontally. Further, two or more lower welding guns are horizontally disposed to correspond to the upper welding gun, and an upper and lower moving unit are installed on the fixation panel to reciprocate the lower welding gun vertically.

Abstract: An all-in-one jigless projection loading system for a vehicle is adapted to load and assemble a body component to a vehicle body. The all-in-one jigless projection loading system may include: a fixing bracket fixed to an arm of a robot; a position adjusting member rotatably mounted to the fixing bracket; a gripper mounted to the fixing bracket to be movable backward and forward, and gripping the body component; an array unit mounted to the position adjusting member, and arraying the body component; and a welding unit mounted to the fixing bracket, and projection-welding the body component to a vehicle body.

Abstract: 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.

Abstract: A spot welding apparatus includes a stationary frame having a housing formed therein. An upper welding gun is mounted to a length direction of a pressing unit disposed in the housing of the stationary frame. A plurality of lower welding guns are mounted on an outside of the stationary frame and ends of the plurality of lower welding guns selectively face one end of the upper welding gun in a length direction of the lower welding guns by the plurality of lower welding guns. A plurality of actuators are mounted on the outside of the stationary frame. A plurality of link units are disposed between the actuators and the lower welding guns, connect the actuators and the lower welding guns, respectively, and rotate as the actuators are operated.

Abstract: A spot welding apparatus is provided that includes a fixation panel mounted on an arm of a robot. An upper welding gun is vertically installed on a front of the fixation panel, reciprocatesvertically through a pressing unit and moves horizontally toward the fixation panel. A left and right moving unitis installed between the fixation panel and the pressing unit to move the upper welding gun horizontally. Further, two or more lower welding guns are horizontally disposed to correspond to the upper welding gun, and an upper and lower moving unit are installed on the fixation panel to reciprocate the lower welding gun vertically.

Abstract: A mounting position variation apparatus for an assembly device is an apparatus used in a vehicle assembly line for changing the mounting position and angle of an assembly device on a carrying unit that can move is several axial directions, and includes i) a first mounting part mounted on the carrying unit, ii) a second mounting part rotatably disposed on the first mounting part and mounted on the assembly device, and iii) a driving unit mounted on the first mounting part to rotate the second mounting part at predetermined angles, and connected with the second mounting part.