SUNGWOO HITECH CO., LTD. Patent applications |
Patent application number | Title | Published |
20150226253 | RIVET STUD BOLT AND PANEL JOINT STRUCTURE OF THE SAME - A rivet stud bolt is disclosed. A rivet stud bolt for mounting an element to at least one panel includes a bolt portion to which the panel is assembled, a flange integrally formed to an end of the bolt portion, and a rivet portion integrally connected to the flange, in which at least two slits are formed, and the rivet portion is plastically deformed and connected to the panel. | 08-13-2015 |
20150202711 | DEVICE AND METHOD OF VIBRO-SPOT WELDING - A device of vibro-spot welding may include: a vibration cylinder housing formed of first and second piston chambers divided by a dividing wall; a first piston rod being an annular rod, integrally connected with a first piston disposed in the first piston chamber, and having one end penetrating a side of the vibration cylinder housing; a second piston rod being a circular rod penetrating the annular rod, integrally connected to a second piston disposed in the second piston chamber, and having one end penetrating the side of the vibration cylinder housing; a leading-in housing wrapping an exterior surface of the vibration cylinder housing and receiving current from a power source; an electrode supporter threaded with one end of the leading-in housing; a heating electrode threaded with one end of the electrode supporter; a first vibration electrode threaded with the one end of the first piston rod and penetrating the electrode supporter and the heating electrode; and a second vibration electrode threaded with the one end of the second piston rod and penetrating the first vibration electrode. | 07-23-2015 |
20150183046 | STUD WELDING DEVICE AND WELDING METHOD USING THE SAME - A stud welding device may include: a gun frame; a transformer disposed at a side of a rear portion of the gun frame and supplying welding current; a pressing cylinder mounted at a front portion of the gun frame and including an operating rod; a cooling holder mounted at a front end of the operating rod of the pressing cylinder; a stud welding tip mounted at a front end of the cooling holder and formed of an inserting hole in which negative pressure is applied; and an electric cable connected to one side of the operating rod of the pressing cylinder and applying the current of the transformer to the stud welding tip, wherein the stud welding device is adapted to execute resistance welding by applying pressure and the current to the base metal in a state of mounting a stud bolt at the stud welding tip using the negative pressure in the inserting hole. | 07-02-2015 |
20150151698 | METHOD FOR MANUFACTURING BUMPER BEAM UNIT FOR VEHICLE AND BUMPER BEAM UNIT MANUFRCTURED THEREBY - A method of manufacturing a bumper beam unit of a vehicle, wherein the bumper beam unit includes a bumper beam formed through a roll forming process and a stay mounted at an end portion of the bumper beam is disclosed. The method may include: a cutout section forming step in which a cutout section is formed by cutting out an end portion of a rear portion of the bumper beam partially; a cutout section bonding step in which a bonding section is formed by bonding both cutout surfaces in a state of contacting the both cutout surfaces; and a stay bonding step in which a stay is bonded to end portions of a rear surface of the bumper beam corresponding to the bonding section. | 06-04-2015 |
20150043995 | RIVET NUT UNIT - Disclosed is a rivet nut unit. The rivet nut unit may comprise a rivet nut including a flange of which a lower surface is supported by a upper surface of a plate while riveting the plate by a riveter, a body part of which the inside of a lower part is worked to have screw threads and which is integrally formed in a cylindrical shape with a lower portion of the flange, and a hole-making head which is disengageably located on a lower end of the body part to rotate together with the rivet nut and bore an insertion hole in the plate while the riveter rotates in order to insert the body part into the plate. | 02-12-2015 |
20150027641 | FLEXIBLE ROLL FORMING DEVICE - Disclosed is a flexible roll forming device including bases respectively disposed on opposite sides with respect to a process direction center line in a left/right direction of which rails are configured thereon along a lateral direction of the process, forward/backward moving means having a slide plate provided to be movable along the rails on the base, turning means rotatably provided to the slide plate, and roll forming means provided on the turning means to include an upper forming roll and a lower forming roll inclined with respect to the upper forming roll for subjecting a material fed thereto to flexible roll forming by using the upper and lower forming rolls while varying positions in the lateral direction of processing with the forward/backward moving means, and angles from a process direction with the turning means. | 01-29-2015 |
20150027192 | FLEXIBLE ROLL FORMING DEVICE, BLANK GUIDE DEVICE, BLANK FEEDING DEVICE, AND FLEXIBLE ROLL FORMING SYSTEM HAVING THE SAME - Disclosed is a flexible roll forming device including: bases respectively disposed on opposite sides with respect to a process direction center line in a left/right direction, each having an opening formed in an upper side thereof connected to an inside thereof, and rails configured thereon on opposite sides of the opening in a lateral direction of the process; forward/backward moving means having a slide plate provided to be movable along the rails on the base; turning means rotatably provided to the slide plate; and roll forming means provided on the turning means to include upper and lower forming rolls for subjecting a material fed thereto to flexible roll forming by using the upper and lower forming rolls while varying positions in the lateral direction of processing with the forward/backward moving means, and angles from a process direction with the turning means. | 01-29-2015 |
20150027189 | FLEXIBLE ROLL FORMING METHOD - In accordance with an exemplary embodiment of the present invention, a flexible roll forming method for roll forming a beam of a predetermined shape by bending a material fed to a plurality of roll forming units each having upper and lower forming rolls in succession, and for roll forming the beam by feeding the material to a flexible roll forming unit having upper and lower forming rolls disposed on left/right sides of a process direction and both side upper and lower forming rolls disposed to vary positions in a lateral direction of the process and angles from a process direction, respectively, to cause flexible bending of the material in succession over multiple stages, is provided. | 01-29-2015 |
20140165752 | ROTATION JIG DEVICE OF PROCESSING MACHINE - A rotation jig device may include both side housings that are disposed at both sides, a reverse gear that is disposed inside both side housings, a groove portion, front and rear side connection gears that are engaged with the reverse gear in both side housings, front and rear side pinion gears that are disposed at the front/rear side connection gear to be rotated, a rack gear that penetrates both side housings to be engaged with the front and rear side pinion gears, an advanced/retreat cylinder that is connected to each rack gear of both side housings to move each rack gear backward or forward, and a clamping portion that is disposed at the reverse gear and rotates with the reverse gear to clamp the workpiece. | 06-19-2014 |
20140165687 | CLAMPING DEVICE FOR BENDING PRESS AND BENDING PRESS PROVIDED WITH THE SAME - A clamping device for a bending press includes a clamping die with a space formed therein, a clamping holder rotatably disposed within the space of the clamping die around a rotation shaft formed thereto, an upper cam block and a lower cam block respectively disposed within the clamping holder and slidable along the horizontal direction, and of which a cam slant surface is formed at a front side of the upper cam block and the lower cam block respectively, an upper clamping block and a lower clamping block contacting each cam slant surface of the upper cam block and the lower cam block, and clamping an end of a pipe disposed therebetween by sliding along a slant direction of the clamping holder, and a pressing unit selectively pressing the upper cam block and the lower cam block. | 06-19-2014 |
20140159432 | ROOF SIDE RAIL - A roof side rail is connected to a roof panel and includes a multi-sectional rail having a plurality of integrally formed ribs and bent along a shape of an upper portion of a side surface of a vehicle body, and a reinforcement rail that is combined with an inner side surface of the rail, an upper side flange is connected to the roof panel, and a lower side flange is engaged with a weather strip. | 06-12-2014 |
20140159411 | MOUNTING UNIT FOR SUB-FRAME IN VEHICLE - A mounting unit for a sub-frame of a vehicle is provided. The mounting unit is used for engaging a front side member with the vehicle's sub-frame. The mounting unit includes a welding seat that is formed as a groove on a lower side of the front side member. The mounting unit further includes a mounting nut assembled with the front side member, a welding flange integrated with an external circumference and a head of the mounting nut and inserted into the welding seat to be combined with the welding seat, and a member seat that is formed outside the welding flange and with which a fender upper connecting member is combined. | 06-12-2014 |
20140157853 | BENDING PRESS SYSTEM - A bending press system is disclosed. The bending press system may include: a base; a slider disposed above the base and moving downwardly toward the base or moving upwardly from the base; a curvature die mounted at the base and the slider, and integrated by descent of the slider such that a pipe member inserted in the curvature die is formed to have a predetermined curvature; and a pair of clamping units disposed to be rotatable by a predetermined angle corresponding to the curvature die at both sides of the base, and clamping both end portions of the pipe member. | 06-12-2014 |
20140157603 | METHOD OF ASSEMBLING SUB-FRAME AND FRONT SIDE END IN VEHICLE - A method of assembling a sub-frame of a vehicle with the front side member of the vehicle includes integrally forming a supporting end of a mounting nut that protrudes in a radial direction in a center of an external circumference of the mounting nut, forming a through hole in a lower surface of the front side member, forming a seat as a groove in an internal surface of the through hole, inserting a lower end of the mounting nut into the through hole so that the supporting end is supported by a circumference of the through hole, settling a head of the mounting nut in the seat, and welding the supporting end and the head along the circumference of the through hole and a side of the seat to assemble the sub-frame to the front side member. | 06-12-2014 |
20140125025 | REAR SUSPENSION SYSTEM OF COUPLED TORSION BEAM AXLE - The present invention relates to a rear suspension system of a coupled torsion beam which comprises a torsion beam and trailing arms connected to ends of the torsion beam by welding, wherein a gap with a predetermined length is formed between the torsion beam and the trailing arm. | 05-08-2014 |
20140124488 | METHOD OF LASER WELDING - A method of laser welding is disclosed. The method may be performed after an upper steel plate and a lower steel plate are overlapped. The method may include: forming a molten pool at the upper steel plate and the lower steel plate and welding the upper steel plate and the lower steel plate by irradiating a laser beam of focal region to a welding portion of the upper steel plate and the lower steel plate along a main welding pattern; and melting a peripheral portion of a keyhole formed at an end of the main welding pattern and welding the upper steel plate and the lower steel plate by irradiating the laser beam of the focal region along a fine welding pattern added to an end portion of the main welding pattern. | 05-08-2014 |
20140091067 | SOOT PREVENTING DEVICE OF STUD WELDER - A device that prevents soot in a stud welding machine. In particular, the device includes a cap holder that is fitted on a stud chuck of a stud gun for a stud welding machine and has extenders at the sides thereof. In addition, fixing rods attach the cap holder to the stud gun by connecting the extenders of the cap holder with the sides of the stud gun and a cap that is inserted in the cap holder from below is movably combined with the cap holder by a cap nut, and has an end that comes in contact with an edge of a welding portion of a base material during stud welding. Further, a shock-absorbing member is disposed between the cap and the cap holder, inside the cap holder, and provides an elastic force to the cap. | 04-03-2014 |
20140034620 | CLAMPING DEVICE AND LASER WELDING APPARATUS USING THE SAME - A clamping device and a laser welding apparatus using the same are disclosed. The clamping device may include: an upper clamping link mounted rotatably upwardly or downwardly by a hinge shaft; a lower clamping link mounted rotatably in an opposite direction of the upper clamping link by the hinge shaft and corresponding to the upper clamping link; at least two upper rollers rotatably mounted at the upper clamping link; at least two lower rollers rotatably mounted at the lower clamping link, corresponding to the upper roller, and fixing a welding object together with the upper rollers; and an operating cylinder configured to rotate the upper clamping link and the lower clamping link in opposite directions to each other. | 02-06-2014 |
20130322987 | SELF-PIERCING RIVET - A self-piercing rivet is disclosed. The self-piercing rivet integrally joins an upper plate member and a lower plate member overlapping each other. The self-piercing rivet includes a head portion, a shank portion integrally connected with the head portion, a plurality of ribs formed to an external circumferential surface of the shank portion along a length direction of the shank portion in a spiral form, and at least one stopper protrusion protruded from a lower portion of the head portion. | 12-05-2013 |
20130322986 | SELF-PIERCING RIVET - A self-piercing rivet is disclosed. The self-piercing rivet integrally joins an upper plate member and a lower plate member overlapping each other. The self-piercing rivet includes a head portion, a shank portion integrally connected with the head portion and a plurality of ribs formed to an external circumferential surface of the shank portion along a length direction of the shank portion in a spiral form, wherein a drive slot is formed to upper portion of the head portion. | 12-05-2013 |
20130315690 | SELF-PIERCING RIVET - A self-piercing rivet is disclosed. The self-piercing rivet integrally joins an upper plate member and a lower plate member overlapping each other. The self-piercing rivet includes a head portion, a shank portion integrally connected with the head portion, and a plurality of ribs formed to an external circumferential surface of the shank portion along a length direction of the shank portion in a spiral form. | 11-28-2013 |
20130305802 | MOLD FOR HOT STAMPING - A mold for hot stamping is disclosed. The mold for hot stamping according to an exemplary embodiment of the present invention may include an upper mold and a lower mold so as to stamp a heated blank having a welding portion. A recess may be formed at an upper forming surface in the upper mold corresponding to the welding portion of the blank and may define a cooling space between the recess and the blank such that a cooling fluid directly cools the welding portion of the blank after the blank is stamped. | 11-21-2013 |
20130305798 | ROUND BENDER - A round bender is disclosed. The round bender may include a plurality of bending roll units disposed along a process line between a pair of bender frames so as to bend a straight shaped beam to have a curvature. Each of the plurality of bending roll units may include upper and lower bending rolls rotating between the pair of bender frames and may be adapted to bend the shaped beam to have the curvature when the shaped beam passes between the upper and lower bending rolls. A lower bending roll of a rearmost bending roll unit disposed on a rearmost part of the process line may be configured to be rotatable with reference to an upper bending roll of the rearmost bending roll unit so as to change a curvature radius of some portion of the shaped beam. | 11-21-2013 |
20130255349 | BENDING PRESS SYSTEM - A bending press system is disclosed. The bending press system may include: at least one guide post; a slide plate mounted at a slider so as to be slidable upwardly or downwardly along the guide post; a bending die including a lower die having an upper surface and an upper die having a lower surface corresponding to the upper surface of the lower die and mounted on a lower surface of the slide plate, and adapted to bend an object supplied between the lower die and the upper die to have a predetermined curvature; and a pair of clamping means mounted respectively at both sides of the bending die corresponding to the bending die and adapted to clamp both end portions of the object. | 10-03-2013 |
20130136942 | ROLL FORMING METHOD AND SHAPED BEAM PRODUCED BY USING THE SAME - A roll forming method including a roll forming step performed by a plurality of roll formers and a bending step performed by a round bender provided with a plurality of bending roll units is disclosed. After a concave surface is formed at a surface of a shaped beam sequentially bent so as to have a closed section at the roll forming step, the concave surface is disposed so as to face toward an inward of a curvature of the shaped beam in the round bender and the shaped beam is formed to have the curvature through multiple steps at the bending step. | 05-30-2013 |
20130133389 | MAGNETIC PULSE FORMING DEVICE FOR ROLL FORMING SYSTEM AND CONTROL METHOD FOR THE SAME - A magnetic pulse forming device for a roll forming system includes forward and rearward guide rolling means, a guiding means including guiding rails disposed on the base between the forward and rearward guide rolling means and guide frames movably disposed on the guiding rails, a magnetic forming means including an upper plate connecting the guide frames corresponding to an upper surface of the forming beam, a coil housing assembled to the upper plate and a coil disposed within the coil housing and electrically connected to a pulse generator to generate a magnetic pulse by input current, a movement detector, a synchronizing motor connected to the lead screw to rotate the lead screw and a screw housing engaged with the lead screw and moving the guide frames with the forming beam in the process direction by rotation of the lead screw, and a forming mold. | 05-30-2013 |
20130119025 | METHOD OF LASER WELDING - A method of laser welding where two steel sheets are welded by a laser beam after the two steel sheets are overlapped with a predetermined gap is disclosed. | 05-16-2013 |
20130112665 | DEVICE AND METHOD OF VIBRO-SPOT WELDING - A device and a method of vibro-spot welding which weld overlapped metal plates by heating welding portions of the overlapped metal plates and applying linear and repetitive load to the welding portions are disclosed. The device of vibro-spot welding may include a pair of vibration welders facing each other with respect to overlapped metal plates, wherein at least one of the pair of vibration welders heats welding portions of the metal plates, generates plastic flow at the welding portions by moving the welding portions reciprocally between the pair of vibration welders, and joining the welding portions by applying pressure to the welding portions at which the plastic flow occurs. | 05-09-2013 |
20130094924 | SELF-PIERCING RIVET - A self-piercing rivet is disclosed. The self-piercing rivet integrally joins an upper plate member and a lower plate member overlapped with each other. The self-piercing rivet includes: a head portion; and a shank portion integrally connected to the head portion and provided with more than two slits. | 04-18-2013 |
20120312794 | WELDING DEVICE FOR STRETCH BENDER - A welding device for a stretch bender is disclosed. The welding device for the stretch bender may include: an operating unit adapted to move forward toward or rearward from a bending die for shaping a shaped beam and mounted in front of the bending die; and a welding unit mounted at the operating unit and welding flange portions of the shaped beam that is completely formed by the bending die so as to prevent the flange portions from being overlapped with each other when extracting the shaped beam, the welding unit being movable forward or rearward against the operating unit. | 12-13-2012 |
20120168414 | DEVICE FOR CONNECTING WELDING WIRE FOR CO2 GAS WELDING - A device for connecting welding wires for CO | 07-05-2012 |
20120125898 | LASER WELDING DEVICE FOR ROLL FORMING SYSTEM AND CONTROL METHOD THEREOF - A roll forming system which roll-forms a shaped beam by a roll forming unit including a plurality of roll formers is disclosed. A laser welding device for the roll forming system may include: front and rear guide means disposed apart from each other at the rear of the roll forming unit, and guiding movement of the shaped beam; laser welding means mounted above and between the front and rear guide means, reciprocatedly rotating a mirror by controlling a mirror motor so as to irradiate a laser beam to a welding position of the shaped beam, and thereby forming a welding bead having a predetermined welding pattern; forming speed detecting means detecting a forming speed of the shaped beam and transmitting a signal corresponding thereto to a controller; a camera disposed at the rear of the laser welding means, photographing a welding portion of the shaped beam, and transmitting an image signal corresponding thereto to the controller. | 05-24-2012 |
20120125065 | ROLL FORMING SYSTEM AND ROLL FORMING METHOD - A roll forming system and a roll forming method are disclosed. The roll forming system according to an exemplary embodiment of the present invention includes a bending unit provided with synchronizing means moving a synchronizing table in keeping pace with a forming speed of a shaped beam along a process line, clamping means clamping both sides of the shaped beam, position conversion means converting a position of the shaped beam between a cutting position and a bending position, cutting means cutting one side of the shaped beam by a cutting wheel, and a bending means stretch-bending the shaped beam to have a predetermined curvature. | 05-24-2012 |
20110285152 | BUMPER BEAM ASSEMBLY FOR VEHICLE - A bumper beam assembly for a vehicle may include a bumper beam having a horizontal support plate, front and rear vertical support plates attached to the horizontal support plate, wherein the rear vertical support plate includes an insertion hole, a partition formed along the horizontal support plate between the front and rear vertical support plates, and a stay, an end portion of which may be inserted into the insertion hole. | 11-24-2011 |
20110155325 | BENDING DEVICE - The present invention relates to a bending device of which a beam is inserted between laminated moldings formed by slidably layering a plurality of molding plates, and the bending device of which deformation of the laminated moldings may simultaneously realize bending of up and down directions and side directions of a curved portion of a beam, and thus the bending device may realize a 3-dimensional bending process at once. | 06-30-2011 |
20110139753 | LASER WELDING METHOD FOR STEEL SHEET - The present invention provides a laser welding method for steel sheets. The laser welding method includes irradiating a low heat input laser beam to a weld zone with a uniform welding pattern of a zigzag shape, with a constant pitch, and with a constant welding speed, so that autogenous welding may be achieved without a feed wire, such that cost of material may be reduced and joinability and performance may be improved. | 06-16-2011 |
20090165520 | ROLL-FORMING SYSTEM AND METHOD THEREOF - The present invention relates to a roll-forming system and a method thereof that enables both ends of a panel to be formed attractively by roll-forming the panel after cutting grooves are formed at both ends of the panel by using a blanking press. | 07-02-2009 |
20090134131 | LASER WELDING METHOD FOR GALVANIZED STEEL SHEETS - The present invention relates to a laser welding method for galvanized steel sheets where galvanized steel sheets are lap-welded by using a laser beam of a keyhole welding zone in a state in which a gap for exhausting zinc fumes is formed by embossing a plurality of protrusions along a welding line on one galvanized steel sheet among the galvanized steel sheets by using a laser beam of a conducting welding region. | 05-28-2009 |