COMAU, INC. Patent applications |
Patent application number | Title | Published |
20150285313 | Multiple Natural Frequency Coupling Apparatus - A multiple natural frequency coupling apparatus for connecting a rotatable driving member to a rotatable driven member of a drive line. The coupling apparatus of the present invention provides a substantially cylindrical housing having a longitudinal axis with a substantially cylindrical outer shaft coaxially aligned with and connected to the housing. A substantially cylindrical inner shaft is coaxially aligned with the outer shaft and the housing. A substantially cylindrical chuck housing is coaxially aligned with the housing, the outer shaft, and the inner shaft wherein the fluid chuck housing is connected to the inner shaft. A substantially cylindrical collapsible sleeve is coaxially aligned with and between the fluid chuck housing and the outer shaft, wherein the collapsible sleeve may move between a non-actuated position, wherein the collapsible sleeve does not engage the outer shaft thereby providing the coupling apparatus with a first torsional stiffness corresponding to a first natural frequency, and an actuated position, wherein the collapsible sleeve engages the outer shaft thereby providing the coupling apparatus with a second torsional stiffness corresponding to a second natural frequency. | 10-08-2015 |
20140259600 | PROCESS AND APPARATUS FOR INSPECTING A HIGH VOLUME MATERIAL JOINTING OPERATION - A method of sequentially performing a plurality of jointing operations includes positioning an automated device to form a mechanical joint into a workpiece and forming a mechanical joint into the workpiece. Once the mechanical joint is formed, the workpiece is scanned to generate data indicating the surface geometry of the workpiece at a location including the mechanical joint. One or more geometric features of the surface geometry are identified, and if the identified geometric features are within respective predetermined specification thresholds, the automated device is repositioned to form a subsequent mechanical joint into the workpiece. | 09-18-2014 |
20140217155 | High Density Welding - Methods for welding motor vehicle body component subassemblies at a weld stations are disclosed. First and second pallets may be arranged for reciprocal movement between a load/unload station and the weld station and the pallets are alternately moved from a load/unload station to the weld station while the other pallet is moved from the weld station to a load/unload station. Each pallet may have a plurality of substations for receipt of component subassemblies and, while each pallet is at the load/unload station, the component subassembly at each substation is moved to the next successive substation and a further component is added to the moved component. | 08-07-2014 |
20130325159 | METHODS FOR USING AN AUTOMATED GUIDED CART - An automated guided cart (AGC) that is configured to travel along a cart path according to generally non-precision movements is implemented to support a build process requiring precise positioning of vehicle build devices. In an example of a method of use, a vehicle build device for the build process is engaged with the AGC. When the AGC travels proximate a build operation area, the AGC can be secured in a dimensionally fixed position, with the result that both the AGC and a vehicle build device engaged with the AGC are located in precise positions. Based on the precise location of the vehicle build device, the vehicle build device can be interfaced with robots or other automated equipment according to preprogrammed and/or precise movements to carry out a build process. | 12-05-2013 |
20130158696 | Method and Apparatus for Assembling a Complex Product in a Parallel Process System - A method and apparatus for assembling a complex product in a parallel process system wherein a collection of components are provided for assembling the complex product. The present invention involves transferring the collection of components to one of a plurality of similar computerized assembly cells through the use of a transport system. The collection of components is automatically assembled into the complex product through the use of the computerized assembly cells. The complex product is then transferred from one of the assembly cells to a computerized test cell, where the complex product is tested to ensure for the proper dimensioning and functioning of the complex product. The complex product is then transferred from the test cell via the transport system to either a part reject area or conveyor, if the product is defective, or to an automatic dunnage load or part return system, if the product is not defective. | 06-20-2013 |
20130082169 | DIRECT VEHICLE BODY LOCKING SENSOR APPARATUS AND METHOD - Disclosed herein is a sensing device for use in providing positive feedback of the position of a vehicle body securing device used to selectively secure a vehicle body to a vehicle body support movable along a path of travel. A vehicle body securing device is selectively movable between a locked position and an unlocked position. An indicator is connected to the securing device and is reciprocally movable to and from a target area when the securing device is in one of the locked position and the unlocked position. A sensor has a field of view selectively alignable with the target area. The sensor is operable to detect when the indicator is positioned at the target area to provide a positive indication of the position of the securing device. | 04-04-2013 |
20130074584 | FLEXIBLE LEAK TEST APPARATUS AND METHOD - A flexible leak test apparatus and method for leak testing a variety of workpieces having various multiple configurations with at least one internal cavity and at least one aperture leading therefrom. The flexible leak test apparatus and method provide a plurality of leak test fixtures adaptable to receive the workpieces. Each leak test fixture has a bottom portion and a top portion that engage one another when the workpieces are loaded in the bottom portion of the leak test fixture. The leak test fixtures are shuttled in and out of the workstation, and a manipulator loads and unloads the workpieces into and out of the bottom portion of the leak test fixtures. The leak test fixtures seal the apertures in the workpieces so that the workpieces can be leak tested by pressurizing the internal cavity of the workpiece. | 03-28-2013 |
20130067740 | WELD GUN PART CLAMP DEVICE AND METHOD - A combination component handling and connecting device connectable to a multi-axis robot for use in moving and connecting components and subassemblies includes a housing and an actuator fixedly connected to the housing. The actuator includes an actuating link movable from a first position to a second position. Connected to the actuating link is an end effector for concurrent movement with the actuating link. The component handling and connecting device includes a clamp having a first jaw and a second jaw. The second jaw is connected to the actuating link for selectively moving the second jaw toward the first jaw operative to engage a component. | 03-21-2013 |
20130000550 | Thermal Metal Spraying Apparatus - A thermal metal spraying apparatus for use with a thermal metal spraying torch for applying a metal coating to a workpiece through a torch spraying nozzle having a spraying orifice. The thermal metal spraying apparatus provides a substantially tubular shroud having a first end and a second end adaptable to concentrically receive the torch spraying nozzle. The shroud has an opening at the second end, wherein the opening is selectably alignable with the spraying orifice. A drive mechanism is connected to the shroud and is operable to translate the shroud between a first position, wherein the opening at the second end is not aligned with the spraying orifice, thereby preventing the spraying of the metal coating on the workpiece, and a second position, wherein the opening at the second end is aligned with the spraying orifice permitting the spraying of the metal coating toward the workpiece. | 01-03-2013 |
20120304446 | INTEGRATED VEHICLE PART DELIVERY AND BUILD SYSTEM - A device and method for assembling parts, products or machines in a random build order that integrates or combines the delivery of loose components to be assembled on a carriage that itself supports the device being assembled along an assembly line path of travel. The loose parts onboard the carriage that also supports the device being progressively assembled substantially improves the logistics in an assembly plant and efficiency in building the part, product or device, for example a vehicle sheet metal body. | 12-06-2012 |
20120297854 | HEMMING HEAD DEVICE AND METHOD - A hemming head device and method for hem forming one or more edges of deformable material. The hemming head device includes dual biasing spring members which provide a resistive force whether the hemming wheel is in a push hemming operation on an exterior joint edge or in a pull hemming operation on an interior joint edge. The device further includes a quick connect device for selectively connecting hemming wheels and other forming devices to the head and a gauge to measure the relative position or resistive force applied on the forming member by the biasing members. A method for hem forming a workpiece using dual biasing spring members is also disclosed. | 11-29-2012 |
20120297614 | ROBOTIC HIGH DENSITY WELDING BODY SHOP - A method and apparatus for managing the delivery of component parts and tooling to a robotic welding assembly positioned on a motor vehicle body assembly line. Automatic guided vehicles deliver component parts from a source of parts to a parts staging area on the robotic welding assembly including a substage awaiting area, a substage in-use area and a substage empty area, and further automatic guided vehicles deliver tooling from a tooling management area to the robotic welding assembly whereafter the tooling, upon model changeover, is moved to a tooling use area proximate the assembly line whereafter, upon further model changeover, the tooling is removed from the tooling use area and loaded onto an automatic guided vehicle for return to the tooling management area. | 11-29-2012 |
20120260482 | METHOD AND APPARATUS FOR ASSEMBLING A CLUTCH - A method and apparatus for automatically assembling a clutch of an automatic transmission of a motor vehicle. The method and apparatus includes providing an assembly station having an assembly table with a clutch fixture connected to the assembly table and adaptable to receive a clutch housing. At least one tray is connected to the assembly table and is adaptable to receive clutch components of the clutch. At least one robotic arm is engageable with the clutch housing and the clutch components for loading and unloading the clutch housing onto and from the clutch fixture and the clutch components from at least one tray. A manipulator connected to and in communication with the at least one robotic arm automatically engages an appropriate tool for assembling the clutch components into the clutch housing. At least one assembly fixture is removably connected to the clutch fixture and connectable to the clutch housing for assisting in the assembly of the clutch components to the clutch housing. | 10-18-2012 |
20120111948 | PRECISED TRANSPORT POSITIONING APPARATUS USING A CLOSED LOOP CONTROLLED, NON-DIRECT OR FRICTION DRIVE SYSTEM WITH ABSOLUTE POSITIONING ENCODER - An apparatus for positioning a workpiece carrier with respect to a workstation can include a workpiece carrier movable relative to the workstation and having an encoder strip, at least one encoder reader located at the workstation for generating a signal in response to interaction with at least one encoder strip, and a drive engaging the workpiece carrier for moving the carrier relative to the workstation, the drive responsive to the signal from the encoder reader. A closed loop feedback control system can be provided for receiving the signal from the encoder reader, and for generating an output signal in response to the signal from the encoder reader in accordance with a program stored in memory. | 05-10-2012 |
20120066885 | SINGLE RETAINER MOUNTED RISER - A fastening device and method for mounting equipment to a framing member. The invention includes a single breakaway fastener that is pretentioned using a biasing member to fracture on a predetermined force applied to the fastened joint to avoid damage to the secured equipment. In one example the device and method includes the fastener having a reduced diameter portion that is positioned between an annular plate and the framing member. | 03-22-2012 |
20120036701 | MOTOR VEHICLE BODY ASSEMBLY APPARATUS - A method and apparatus for providing motor vehicle sub-assemblies with unrestricted model mix and quick changeover between models. The apparatus includes a track; a carriage mounted for longitudinal movement along the track between first and second positions; and first and second turrets rotatably mounted on the carriage at longitudinally spaced locations and each including a plurality of circumferentially spaced individual faces and unique tooling fixtures on the respective faces for receiving unique work piece components corresponding to a plurality of motor vehicle body styles. | 02-16-2012 |
20120030924 | VEHICULAR BODY ASSEMBLY LOCKING APPARATUS AND METHOD - A vehicle body positioning and locking devices for use in assembling a vehicle body positioned on a movable vehicle support positioned at a vehicle build station. The locking device includes a remote vehicle locking device for selectively securing and locking a vehicle body to a support pallet. The support pallet is accurately and precisely positioned at a build station through alignment and inserting engagement of locating pads in at least one four-way and at least one two way receiver mounted to a build station foundation. A compliant body clamp design is included to provide a desired clamping force between the pallet and a vehicle body across a range of motion of the body clamp to accommodate vehicle build variances. | 02-09-2012 |
20110314665 | SEQUENCED PART DELIVERY SYSTEM - A system and method for sequencing component part delivery for use in assembling vehicle bodies arranged in a substantially random assembly sequence. The system and method includes a plurality of kit carts that are loaded or stocked with vehicle specific parts in a sequence or staging area of an assembly facility. The vehicle specific stocked carts are arranged and positioned to a coordinated vehicle to assemble the vehicle using the kit carts that move along in sequence with the vehicle as the vehicle is assembled along an assembly line. As the carts are depleted of parts, the carts are returned for restocking and assigned to a subsequent vehicle. | 12-29-2011 |
20110265301 | VARIABLE VEHICLE BODY FIXED FRAMER AND METHOD - An vehicle body framing apparatus and method for use in assembling vehicle body structures of varying vehicle types in a framing station positioned along an assembly line. The apparatus includes an overhead bridge frame that is connected to two pairs of vertical pillars positioned at a build station. One pair of the pillars is moveable to accommodate different lengths of vehicle bodies. The spaced pillars and overhead bridge provide substantially unobstructed access openings to the body sides of the vehicle to increase efficiency and quality of build. The device and method may include a bridge frame storage and transport system for remotely storing the different bridge frames not in use and then transporting a selected bridge frame to the build station for use. | 11-03-2011 |
20110209321 | MODULAR MANUFACTURING FACILITY AND METHOD - A modular manufacturing facility and method of construction includes a plurality of service and equipment modules which are readily sized and oriented to be packaged, shipped to a desired location, assembled and connected to local resources to form a fully operational assembly or build facility substantially or wholly independent of any resident building structure at the selected site. | 09-01-2011 |
20110192007 | ROBOTIC HIGH DENSITY WELDING BODY SHOP - A method and apparatus for managing the delivery of component parts and tooling to a robotic welding assembly positioned on a motor vehicle body assembly line. Automatic guided vehicles deliver component parts from a source of parts to a parts staging area on the robotic welding assembly including a substage awaiting area, a substage in-use area and a substage empty area, and further automatic guided vehicles deliver tooling from a tooling management area to the robotic welding assembly whereafter the tooling, upon model changeover, is moved to a tooling use area proximate the assembly line whereafter, upon further model changeover, the tooling is removed from the tooling use area and loaded onto an automatic guided vehicle for return to the tooling management area. | 08-11-2011 |
20110172788 | DISTRIBUTED CONTROL SYSTEM - Disclosed is a method for controlling a plurality of machines. The method includes identifying a first prerequisite operating condition for a first machine in the plurality of machines, the first machine having at least one control unit and configured to perform at least a first operation, obtaining at least one current operating condition corresponding to a second machine in the plurality of machines and if the at least one current operating condition meets the first prerequisite operating condition, performing the first operation. | 07-14-2011 |
20110162191 | Welding Station Framing Apparatus with Breakaway Provision - A motor vehicle car body framing apparatus for use at a welding station, the apparatus including a gate having a frame structure and a plurality of tooling members carried by the frame structure for use in positioning components of the vehicle body at the welding station for welding. The tooling members are mounted on the frame structure by a plurality of mounting brackets. Each mounting bracket includes a base member mounted on the frame structure and a riser mounted on the base and mounting a respective tooling member. The riser is fixedly mounted on the base by a single central fastener bolt which may include a reduced diameter portion sized to break away in response to predetermined impact against the riser. Each mounting bracket further includes means defining a triangulated mounting interface between the base and the riser arranged in concentric relation to the fastener bolt. The triangulated mounting interface may comprise a raised ring surface on one of the base and the riser centered on the axis of the fastener bolt and positioned at the mounting interface of the base and the riser. Each mounting bracket further includes two dowels received in aligned apertures in the base and in the riser at locations flanking the axis of the fastener bolt. | 07-07-2011 |
20110153034 | UNIVERSAL HUMAN MACHINE INTERFACE FOR AUTOMATION INSTALLATION - Disclosed herein is a method for operating a user interface in an automation installation. The method includes identifying at least one control device, establishing a connection between the user interface and the at least one control device, obtaining at least one user interface parameter from the at least one control device and generating at least one display screen on the user interface using the at least one user interface parameter. | 06-23-2011 |
20110138601 | VEHICULAR BODY ASSEMBLY LOCKING APPARATUS AND METHOD - A vehicle body positioning and locking devices for use in assembling a vehicle body positioned on a movable vehicle support positioned at a vehicle build station. The locking device includes a remote vehicle locking device for selectively securing and locking a vehicle body to a support pallet. The support pallet is accurately and precisely positioned at a build station through alignment and inserting engagement of locating pads in at least one four-way and at least one two way receiver mounted to a build station foundation. | 06-16-2011 |
20110099788 | FINAL ASSEMBLY MACHINE AND METHOD OF USE - A final assembly machine and method of using the final assembly machine for the sequential building and assembly of a passenger vehicle. The final assembly machine includes a frame, body support and lifting device for receiving, supporting and selectively and independently raising and lowering a vehicle body along a production assembly line while additional components are installed on the vehicle. Component carts may be removably attached to the assembly machines to provide the necessary components to be installed along the assembly line eliminating storage of build components next to the assembly lines. In one example, the final assembly machines may be independently powered, and guided along an assembly line through a plurality of build stations for increased efficiency and use of assembly plant resources. | 05-05-2011 |
20100329820 | SINGLE RETAINER MOUNTED RISER - A motor vehicle car body framing apparatus for use at a welding station, the apparatus including a gate having a frame structure and a plurality of tooling members carried by the frame structure for use in positioning components of the vehicle body at the welding station for welding. The tooling members are mounted on the frame structure by a plurality of mounting brackets. Each mounting bracket includes a base member mounted on the frame structure and a riser mounted on the base and mounting a respective tooling member. The riser is fixedly mounted on the base by a single central fastener bolt which may include a reduced diameter portion sized to breakaway in response to predetermined impact against the riser. The interface between the riser and the base comprises a plurality of contact points arranged in concentric relation with respect to the fastener bolt. The contact points may comprise a plurality of circumferentially spaced balls mounted on the base for coaction with circumferentially spaced grooves defined on the riser. A breakaway bolt assembly replacement kit is also disclosed as well as an arrangement wherein the riser is constituted by an integral extension arm of the tooling member. | 12-30-2010 |
20100263191 | VEHICLE BODY ASSEMBLY AND SEQUENCING SYSTEM - A vehicle body assembly and sequencing system includes the advantages of a batch vehicle body build sequence with the advantages of a random sequence of vehicle body styles transferred to a painting area. The build system includes using automated guided vehicles which transfer and store assembled, un-painted vehicle bodies in a storage area and sequentially transfers selected bodies from the storage area to the painting area achieving a random or variable supply of different vehicle bodies to be painted a certain color. | 10-21-2010 |
20100241260 | INDUSTRIAL COMMUNICATION SYSTEM AND METHOD - Disclosed here is a method for controlling at least one industrial device using a remote infrastructure environment having at least one computing resource and a cloud communication network. The method includes establishing communication between the at least one industrial device and the remote infrastructure environment, transmitting data from the at least one computing resource using the cloud communication network to a plant communication network, the at least one industrial device configured to perform at least one predetermined function in response to at least a portion of the transmitted data and receiving data from the at least one industrial device by the at least one computing resource using the cloud communication network, the received data generated in response to performance of the at least one predetermined function. | 09-23-2010 |
20100180711 | ROBOTIC END EFFECTOR SYSTEM AND METHOD - A robotic end effector system and method having a plurality of end effectors which are selectively suitable for particular applications on a workpiece. The end effectors include a resident controller adapted to execute tasks specific to the end effector and are rapidly attachable and removable from the robot for easy change over to different workpieces. | 07-22-2010 |
20100126293 | ROBOTIC RADIAL TOOL POSITIONING SYSTEM - A robotic tool positioning system for positioning a first tool and a second tool. The system includes an inner shaft, a first tool arm and a first drive assembly. The first tool arm is connected to the lower portion of the inner shaft at the lower end thereof and extends radially outward therefrom, and has a first tool supporting surface disposed at a tool elevation for supporting the first tool thereon. The system further includes a tubular outer shaft, a second tool arm and a second drive assembly. A lower portion of the inner shaft extends through the tubular outer shaft. The second tool arm is connected to the tubular outer shaft at the lower end thereof, and has a second tool supporting surface disposed at the tool elevation for supporting the second tool thereon. | 05-27-2010 |
20100107789 | Elevator Assembly for Robotic Positioning of a Workpiece - An elevator assembly includes a carrier, a first arm, and a second arm. Each arm has a primary portion pivotally connected to the carrier and a secondary portion pivotally connected to the primary portion. A first gear system interconnects the first arm and the second arm for synchronous rotation with respect to the carrier in opposite directions. A pair of second gear systems establish a geared relationship between the secondary portions of the arms and the carrier. A support member is connected to the secondary portions of the arms, wherein rotation of the primary portions of the arms with respect to the carrier drives the support member between a neutral position and at least a first extended position. | 05-06-2010 |
20100021051 | Automated Guidance and Recognition System and Method of the Same - Disclosed herein are embodiments and methods of a visual guidance and recognition system requiring no calibration. One embodiment of the system comprises a servo actuated manipulator configured to perform a function, a camera mounted on the face plate of the manipulator, and a recognition controller configured to acquire a two dimensional image of the work piece. The manipulator controller is configured to receive and store the face plate position at a distance “A” between the reference work piece and the manipulator along an axis of the reference work piece when the reference work piece is in the camera's region of interest. The recognition controller is configured to learn the work piece from the image and the distance “A”. During operation, a work piece is recognized with the system, and the manipulator is accurately positioned with respect to the work piece so that the manipulator can accurately perform its function. | 01-28-2010 |
20090289043 | SINGLE GEOMETRY PALLETIZED FRAMING SYSTEM - A palletized framing system for a motor vehicle body assembly system in which the pallet with a body structure positioned thereon is positioned at the framing station on balls to establish the vertical Z dimension with the pallet free to float on the balls in longitudinal X and lateral Y dimensions, whereafter positioners carried by one of the gates of the framing station engage and lock onto the pallet to precisely position the pallet and the body structure at the framing station at X and Y dimensions corresponding to the precisely attainable X and Y positioning of the gate. | 11-26-2009 |
20090285666 | High Density Welding Subassembly Machine - A method and apparatus for welding motor vehicle body component subassemblies at a weld station. First and second pallets are arranged for reciprocal movement between a load/unload station and the weld station and the pallets are alternately moved from a load/unload station to the weld station while the other pallet is moved from the weld station to a load/unload station. Each pallet has a plurality of substations for receipt of component subassemblies and, while each pallet is at the load/unload station, the component subassembly at each substation is moved to the next successive substation and a further component is added to the moved component. | 11-19-2009 |
20090230100 | Method and Device for Robot-Aided Remote Laser Welding with Simplified Control of Focusing Direction of Laser Beam - device for remote laser welding of metal sheet structures comprises an anthropomorphous robot onto whose wrist is mounted an accessory device carrying a focusing head for the laser beam coming from a laser source, as well as means for oscillating the pointing direction of the focused laser beam around one oscillation axis. During welding the robot shifts the accessory device along a given trajectory and at a given speed, while the pointing direction of the focused beam is oscillated to as to allow the area of structure that is lighted by the laser beam to shift at a speed and/or along a trajectory not depending directly on the shifting trajectory and speed of the accessory device carried by the robot. | 09-17-2009 |
20090118858 | METHOD AND APPARATUS FORASSEMBLING A COMPLEX PRODUCT INA PARRALLEL PROCESS SYSTEM - A method and apparatus for assembling a complex product in a parallel process system wherein a collection of components are provided for assembling the complex product. The present invention involves transferring the collection of the components to one of a plurality of similar computerized assembly cells through the use of a transport system. The collection of components is automatically assembled into the complex product through the use of the computerized assembly cells. The complex product is then transferred from one of the assembly cells to a computerized test cell, where the complex product is tested to ensure for the proper dimensioning and functioning of the complex product. The complex product is then transferred from the test cell via the transport system to either a part reject area or conveyor, if the complex product is defective, or to an automatic dunnage load or part return system, if the complex product is not defective. | 05-07-2009 |
20090071943 | UNIVERSAL WELD GUN CONFIGURATION - A weld gun in which the first weld arm is fixedly but removably connected to the weld gun body and the second weld arm includes a first arm segment, pivotally mounted at one end thereof on the gun body and pivotally connected at another end thereof to the gun actuator, and a second arm segment fixedly but removably connected atone end thereof to an intermediate portion of the first arm segment. Conversion of the gun from an X axis configuration to a Y axis configuration is achieved by removing the second arm segment from the first arm segment, removing the first weld arm from the body, rotating the second arm segment and the first weld arm through 90°, attaching the first arm to the first arm segment, and connecting the second arm segment to the body. | 03-19-2009 |
20090008457 | PRECISE TRANSPORT POSITIONING APPARATUS USING A CLOSED LOOP CONTROLLED, NON-DIRECT DRIVE OR FRICTION DRIVE SYSTEM WITH ABSOLUTE POSITIONING ENCODER - An apparatus for positioning a workpiece carrier with respect to a workstation can include a workpiece carrier movable relative to the workstation and having an encoder strip, at least one encoder reader located at the workstation for generating a signal in response to interaction with at least one encoder strip, and a drive engaging the workpiece carrier for moving the carrier relative to the workstation, the drive responsive to the signal from the encoder reader. The encoder reader can be selected from a group consisting of an optical encoder reader, a magnetic encoder reader, and any other absolute positioning encoder reader. A closed loop feedback control system can be provided for receiving the signal from the encoder reader, and for generating an output signal in response to the signal from the encoder reader in accordance with a program stored in memory. The encoder reader can be used for generating a signal corresponding to at least one of a position identification signal, a workpiece carrier identification signal, and a workpiece configuration identification signal. | 01-08-2009 |
20080295335 | VEHICLE FRAMING SYSTEM FOR PLURALITY OF VEHICLE BODY STYLES - A method for randomly interchanging up to four pairs of side framing gates at a framing station of a vehicle for randomly interchanging up to four pairs of side framing gates at a framing station of a vehicle assembly line while maintaining a predetermined build cycle time interval of the assembly line. The method includes positioning first and second carousels on opposite sides of the assembly line upstream of the framing station and third and fourth carousels on opposite sides of the production line downstream of the framing station. The method further includes providing a first linear track structure extending from the first carousel to a first side of the framing station, a second linear track structure extending from the second carousel to a second, opposite side of the framing station, a third linear track structure extending from the third carousel to the first side of the framing station, a third linear track structure extending from the third carousel to the first side of the framing station, and a fourth linear track structure extending from the fourth carousel to the second side of the framing station. The carousel are provided with at least two sides, possibly three sides, four sides or more, each side capable of receiving a framing gate. The method includes randomly interchanging framing gates positioned at the framing station by a combination of rotary movements of the carousels and linear movements of framing gates along the linear track structures. | 12-04-2008 |