WO2008013436A1 - Poste flexible de travail d'assemblage de multiples modèles de châssis d'automobiles - Google Patents

Poste flexible de travail d'assemblage de multiples modèles de châssis d'automobiles Download PDF

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Publication number
WO2008013436A1
WO2008013436A1 PCT/MX2006/000082 MX2006000082W WO2008013436A1 WO 2008013436 A1 WO2008013436 A1 WO 2008013436A1 MX 2006000082 W MX2006000082 W MX 2006000082W WO 2008013436 A1 WO2008013436 A1 WO 2008013436A1
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WO
WIPO (PCT)
Prior art keywords
supports
central
chassis
lateral
chassis model
Prior art date
Application number
PCT/MX2006/000082
Other languages
English (en)
Spanish (es)
Inventor
Humberto Molina Ruiz
Gilberto Montalvo Zapata
Original Assignee
Metalsa Servicios, S. De R. L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metalsa Servicios, S. De R. L. filed Critical Metalsa Servicios, S. De R. L.
Priority to PCT/MX2006/000082 priority Critical patent/WO2008013436A1/fr
Publication of WO2008013436A1 publication Critical patent/WO2008013436A1/fr
Priority to MX2009001117A priority patent/MX2009001117A/es

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines

Definitions

  • This invention relates to workstations for the assembly of automotive components and more precisely, to a flexible workstation applicable to multi-chassis automotive models for the marriage of structural chassis components and to a flexible workstation.
  • a flexible workstation applicable to automotive multi-chassis models for assembly processes to pre-assembled chassis models, as well as to a method to match structural components of chassis and a method to perform assembly-manufacturing processes to pre-chassis models assembled
  • the workstation includes a base and a series of programmable locators (small simplified robot arms) spaced apart from each other that are mounted and located in predetermined locations on the base defining a coordinate base platform, each of the programmable locators have a specific job and are adapted to receive and support components or parts in specific locations, so that all components for assembly are cooperatively supported by programmable locators in locations relative to the coordinate base platform;
  • the system has means to control each of the programmable locators that move independently and cooperatively with each other, under the orders of a feedback control program of at least one sensor located in at least one programmable locator, to a desired location within the coordinate base platform in order to receive and support at least one component to be assembled and which has a critical location within an assembly.
  • Each programmable locator has means to retain each component in its desired location relative to the coordinate base platform and to the same assembly to allow the welding or joining equipment to complete at least a partial process in order to obtain the final assembly.
  • the solution described above offers greater flexibility than fixed workstations, however, these are very high-cost workstations due to their complete automation, which presents the disadvantage of generally requiring constant updates of data and corrections of software to the control programs of the programmable locators according to the changes of structures models to be assembled.
  • Another limitation is that generally these workstations are used for the assembly of automotive parts of relatively low weight, such as body parts such as doors or chests, so they are impractical and robust for the assembly of structures. chassis type.
  • the station has a base that longitudinally includes at least one central zone and two lateral zones; a plurality of central supports in the central area that are located a desired coordinate position and are adapted to support a plurality of crossbars according to the chassis model to be pre-assembled or assembled, such that at least two of the central supports maintain the reference of transverse alignment for the chassis model; and two or more lateral supports in each of the lateral zones that are located a desired coordinate position and are adapted to support stringers according to the chassis model to be pre-assembled or assembled, such that at least one of the lateral supports of each one of the lateral zones maintains the reference of longitudinal alignment for the chassis model and where at least two of any of the lateral supports of each one the zones laterals maintain the reference of vertical alignment for the assembly of the chassis model.
  • the flexible work station has a base, a plurality of central supports and a plurality of supports lateral, where the central and lateral supports are located in a desired coordinate position on the base according to the chassis model being pre-assembled or assembled, the method comprises the steps of locating the central supports in a desired coordinate position on the base; load each of the central supports with at least one crossbar; align the crossbars with respect to a cross-alignment reference of the chassis model; retain the crossbars in the central supports; locate the lateral supports in a desired coordinate position on the base; load at least one pair of side beams into the side supports; align the stringers with respect to a longitudinal alignment reference and a vertical alignment reference of the chassis model; retain at least the pair of lateral stringers in the lateral supports; and move the lateral supports with the stringers in order to make the stringers marry the crossbars.
  • Another object of the invention is to offer a flexible work station applicable to multi-models of automotive chassis to carry out assembly-manufacturing processes to a pre-assembled chassis model
  • the station has a base that longitudinally includes at least one central area and two lateral zones; at least one pair of central supports located in the central zone, which are located in a desired coordinate position and are adapted to support the chassis model through at least two of its crossbars, such that the central supports maintain the transverse alignment of the chassis model; and two or more lateral supports located in each of the lateral zones that are located in a desired coordinate position and are adapted to support the chassis model through its stringers, such that at least two of any of the lateral supports of each One of the lateral areas maintains the vertical alignment reference of the chassis model.
  • the flexible workstation has a base, a plurality of central supports and a plurality of lateral supports, such that said central and lateral supports are located in a desired coordinate position on the base according to the supported chassis model, the method has the steps of locating the central supports in a desired coordinate position on the base; locate the lateral supports in a desired coordinate position on the base; load the central supports and the lateral supports with the chassis model; maintain the transverse alignment and the vertical alignment of the supported chassis model with respect to its transverse alignment reference and vertical reference; and retain the chassis model on the central and lateral supports.
  • Figure 1 illustrates a perspective view of a flexible workstation for the marriage of structural chassis components according to the invention.
  • Figure 2 illustrates a perspective view of a support according to the invention.
  • Figure 3 illustrates a side and sectional view of a support with manual mechanism according to the invention.
  • Figure 4 illustrates a front view of a multiple jaw of a fastener according to the invention.
  • Figure 5 illustrates a perspective view of a flexible workstation for assembly-manufacturing processes to a pre-assembled chassis model, all according to the invention.
  • Figure 6 illustrates a block diagram of a method for marrying structural components of the chassis using a flexible work station of Figure 1, all according to the invention.
  • Figure 7 illustrates a block diagram of a method for performing assembly-manufacturing processes, in a flexible workstation of Figure 5, to a pre-assembled chassis model, all according to the invention.
  • flexible denotes the capacity of a system, apparatus, device or object to be adaptable or modifiable by the user or by itself, within a certain parameters, to fit each of the different configurations, dimensions, shapes, materials or standards that can be presented in a series of related structures.
  • pre-assembled chassis means a structure, commonly called chassis frame or frame, which is generally formed from the assembly of stringers and crossbars which may be complete or partially united or soldiers.
  • assembled chassis means a finished chassis structure and which is formed by the assembly of a pre-assembled chassis with structural accessories, such that the assembly is completely attached or soldier.
  • a perspective view of a flexible work station 10 is shown, used in this case for the marriage of structural chassis components, such as crossbars and stringers, for the pre-assembly or complete assembly of at least one chassis model 15.
  • the workstation 10 is formed by a base 20 and a plurality of supports
  • the chassis model 15, shown in Figure 1 is for illustrative purposes only, in order to show the function, described below, of each of the supports 30 to 42 of the flexible work station 10 during the assembly of each of the structural components of the chassis that will form together, once assembled, the chassis model 15.
  • the central supports 30, 31, 32, 33 and 34 are located along the central area 50 of the base 20, which can be located in a desired coordinate position, within the central zone 50, by controlled movements in the axes coordinate X, Y and Z with respect to a coordinate vehicle reference point for assembly, commonly referred to as vehicle zero, which may be a reference point at base 20 or a reference point located outside the flexible work station 10 , but whose location of said vehicular zero depends on the chassis model 15 being assembled.
  • vehicle zero a coordinate vehicle reference point for assembly
  • Each of the central supports 30, 31, 32, 33 and 34 are adapted to support a plurality of structural components of the chassis called cross-pieces of different sizes and geometries for the chassis model 15 to be assembled.
  • the support of said crossbars, on each of the aforementioned central supports, is achieved by means of tools such as fasteners.
  • the tooling can have controlled angular displacements with respect to its central support and even with respect to vehicle zero.
  • each of the mentioned central supports have independent movement in the three coordinate axes, and that their respective tooling can have freedom of angular displacement in any direction
  • the central supports allow to support each of the crossings in various configurations such as, for example, supporting the crossings generally parallel to each other, supporting the crossings at different heights and / or supporting the crossings with variations in their inclination or rotation in any of the three coordinate axes, thus allowing to form geometric variants of the chassis such as, for example, the chassis model 15 shown and other chassis models where the crossbars can go, for example, married in the form of X or intersected.
  • the central support 30 supports the front suspension traverse and motor 80, while the central support
  • the central zone 50 may have other central supports (not shown) that support optional crossbars such as, for example, the front defense crossbar, the rear defense crossbar, the pull crossbar and the crossbars lateral deformation resistance to impact.
  • the lateral supports 35, 36, 37 and 38 are located along the left lateral area 60 of the base 20; while in the right lateral zone 70 are the lateral supports 39, 40, 41 and 42. These lateral supports 35 to 42 can be located in a desired coordinate position, within the left lateral zone 60 or right lateral zone 70 respectively, by controlled displacements in at least two coordinate axes and preferably in the three coordinate axes X, Y and Z with respect to the vehicle zero described above.
  • Each of the lateral supports 35, 36, 37, 38, 39, 40, 41 and 42 are adapted to support a plurality of structural components of the chassis called stringers that can be of different sizes and geometries according to the chassis model 15 to be assembly.
  • the support of said stringers, on the mentioned lateral supports, is achieved by means of tools such as, for example, fasteners.
  • the tooling can have controlled angular displacements with respect to its lateral support and even with respect to vehicle zero.
  • each of the mentioned lateral supports have independent movement in the three coordinate axes, and that their respective tooling can have freedom of angular displacement in any direction
  • the lateral supports allow to support the stringers in various configurations such as, for example, supporting the stringers generally parallel to each other, supporting the stringers at different heights and / or supporting the stringers in an inclined manner with variations in inclination in any of the three coordinate axes, thus allowing to form geometric variants of chassis as, for example, the chassis model 15 shown and other chassis models where, for example, the stringers are married to the crossbars to form triangular structures.
  • the lateral supports 35 and 36 are responsible for supporting the left lateral beam 130 of the chassis at its ends, while optionally the lateral support 37 Io supports on its central part, in order to avoid the buckling of left lateral stringer 130 during assembly; and similarly the side supports 39 and 40 are responsible for supporting the right side beam 140 of the chassis at its ends, while optionally the side support 41 Io supports on its central part, in order to avoid buckling of right side beam 140 during assembly.
  • the side supports 35, 36 and 37, and 39, 40 and 41 place the left side member 130 and right side member 140 respectively in the desired coordinate position according to the chassis model 15 being assembled.
  • the left and right side zones 60 and 70 may have other side supports (not shown) that can support optional stringers at different height levels, in order to form chassis models that have cage-like structures. , that is, chassis models with stringers placed at different heights and married by cross-linked or not.
  • the central zone 50 of the base 20 can in turn have central supports enabled to also support stringers.
  • the work station 10 In order to maintain the quadrature of the chassis model 15 during its assembly, that is, to maintain its longitudinal, transverse and vertical alignment, it is necessary that the work station 10 allows to maintain a longitudinal alignment reference L-L ', a reference of TT 'transverse alignment and a vertical alignment reference VV with respect to the vehicle zero described above and which depend on the chassis model 15 being assembled.
  • the lateral supports 38 and 42 by means of registration points that are introduced into the stringers, maintain the longitudinal alignment reference LL 'by avoiding displacements of the structural components (stringers) on the X axis.
  • the reference of longitudinal alignment LL ' can be maintain by means of stops that can be located in the left lateral zone 60 and the right lateral zone 70.
  • the reference of transverse alignment T-T ' is maintained by means of the central supports 30 and 34, which can have registration points that are introduced in the crossings they support, such central supports 30 and 34 prevent displacements on the Y axis of said structural components.
  • the supports 35 and 36 located in the left lateral zone 60 and the supports 39 and 40 located in the right lateral zone 70 allow, as a whole, to maintain the vertical alignment reference V-V by avoiding displacements in the Z axis of structural components.
  • the supports 30, 34, 35, 36, 38, 39, 40 and 42 have controlled displacements in at least two coordinate axes and preferably in the three coordinate axes X, Y and Z and even their respective tools can have angular displacement with with respect to vehicular zero. It should be mentioned that the longitudinal, transverse and vertical alignment can be achieved with the help or not of other supports (not shown).
  • the supports 30, 31, 35, 38, 39, 42 are mounted on a front platform 150 that travels in a coordinated manner on at least one coordinate axis, in particular on the X axis, with respect to the vehicle zero or the base 20, while the supports 34, 36 and 40 are mounted on a rear platform 160 that also moves coordinate in at least one coordinate axis, in particular in the X axis, with respect to the vehicle zero or the base 20.
  • the coordinate movement in at least one coordinate axis (in this case in the X axis) with respect to the vehicle zero or to the base 20 of the front 150 and rear 160 platforms can be achieved by using manual, semi-automatic or automatic mechanisms .
  • the flexible work station 10 can have at least one lateral platform (not shown) with lateral supports that can be coordinated in at least one coordinate axis.
  • Each of the brackets 30 to 42 not only provide a support point for the structural components of the chassis during assembly, but each can be adapted to carry one or several tools, such as fasteners or clamps that can be fixed or removable. allow complete support and confinement of the structural component of the chassis during the assembly of the chassis model 15. It is worth mentioning that by using, for example, manual, semi-automatic or automatic mechanisms, each of the brackets 30 to 42 can move in a coordinated manner in the X, Y and Z axes with respect to the vehicle zero and in turn their respective tools have angular displacements with respect to their respective support or to the vehicle zero. Each of the structural components of the chassis can be fed to each of the supports 30 to 42 of the flexible work station 10 manually or by means of manual, semi-automatic or automatic material manipulators, such as robots.
  • the workstation 10 can be used for any method of chassis assembly, for example, the method of assembly by stringers consisting of marrying stringers with crossbars as described in the embodiment of the invention, or the method of assembling modules of stairs that are based primarily on marrying crossbars with portions of stringers to form portions of chassis, commonly called stairs, which are then married to form a complete chassis.
  • the front platform 150 is very useful for the method of assembling stair modules.
  • the work station 10 can have supports (not shown) placed in the left side area 60 and the right side area 70, which allow the chassis model 15 to be attached being assembled through the beams 130 and 140 in order to avoid twisting it during assembly. It is worth mentioning that the workstation 10 can also be used to completely finish the assembly of the chassis model 15, since in the same terminal assembly-manufacturing process can be carried out, for example, placement of structural accessories, terminal welding, punching , riveted, cut, to the chassis model 15.
  • the lateral support 35 has a vertical structure 170 with freedom of movement in the three coordinate axes X, Y and Z to be positioned in the desired location according to the chassis model 15 to be assembled, this is achieved through the use of manual mechanisms , semi-automatic or automatic, considering for this, the degree of intervention of the operator to carry out its operation.
  • manual, semi-automatic or automatic mechanisms that can be used in the lateral support 35 are rail-servo-motor mechanisms, telescopic mechanisms and / or rack-and-pinion mechanisms (see Figure 3, references 200 and 210) , all of which can be operated by hydraulic, pneumatic, servo-motors, servo-pistons or combinations thereof.
  • each of the supports 30 to 42 can be controlled by means of scales fixed 180 which are useful when manual or semi-automatic mechanisms are used; or by programmable control instructions for the case where semi-automatic or automatic mechanisms controlled by a computer are used.
  • each of the supports 30 to 42 can be removed from their respective base 20 or from the front 150 and rear 160 platforms by having a mechanism that allows easy connection or disconnection for the purpose of being exchanged.
  • the tooling On the vertical structure 170 there is a tooling that has freedom of angular displacement to be positioned in the desired location or position according to the chassis model 15 to be assembled.
  • the tooling can be removed from its support and can be, for example, a fastener 190 provided with a mechanism that allows its easy connection or disconnection of the vertical structure 170 in order to allow its exchange for another tooling when necessary or simply to give it maintenance.
  • the fastener 190 has a multiple jaw 220 and guide surfaces 230 which together allow to confine, seat and fasten the structural component 140 of the chassis model 15 being assembled.
  • a multiple jaw 220 is shown that has a plurality of contact surfaces 240 of different sizes and configurations, which, when exchanged by means of a rotary mechanism, allow to adapt to the geometry of the structural component 140.
  • an alternative embodiment of a flexible work station 10 ' is used, in this case, for. place 250 structural accessories, such as cab, box, engine mounts, suspension, hose clamps and wiring, and / or for subsequent assembly-manufacturing work, for example, punching, drilling, laser cutting, inspection, to the chassis model 15 once it has been pre-assembled, either in a flexible IO workstation or another workstation.
  • structural accessories such as cab, box, engine mounts, suspension, hose clamps and wiring, and / or for subsequent assembly-manufacturing work, for example, punching, drilling, laser cutting, inspection, to the chassis model 15 once it has been pre-assembled, either in a flexible IO workstation or another workstation.
  • the flexible work station 10 ' is formed by a base 20' and a plurality of supports 30 ', 34', 35 ', 36', 37 ', 39', 40 'and 41', in turn the base 20 ' , which functions as a platform, is longitudinally divided into a central zone 50 'and at least two lateral zones (a left lateral zone 60' and a right lateral zone 70 '); while the supports 30 'to 42' have the particularity of being able to configure their location on the base 20 ', in order to support the pre-assembled chassis model 15.
  • the chassis model 15, shown in Figure 5 is for illustrative purposes only, in order to show the function (described below) of each of the supports 30 ', 34', 35 ', 36' , 37 ', 39', 40 'and 41' of the flexible work station 10 'during the assembly of each of the structural accessories to be placed to the pre-assembled chassis model 15.
  • the central supports 30 'and 34' that can be located in a desired coordinate position, within the central zone 50 ', by controlled displacements in any of the coordinate axes X, Y and Z, and are adapted to support the chassis model 15 pre-assembled by the suspension-front and engine crossbar 80 and the spare tire cross member 120.
  • the lateral supports 35 ', 36 * and 37' are located along the left side zone 60 'of the base 20'; while in the right lateral zone 70 are the lateral supports 39 ', 40' and 41 '.
  • These side supports 35 ', 36', 37 ', 39', 40 'and 41' can be located in a desired coordinate position, within the left side zone 60 'or right side zone 70' respectively, by controlled displacements in at least two coordinate axes and preferably in the three coordinate axes X, Y and Z with respect to the base 20 ', and are adapted to support the chassis model 15 pre-assembled by its stringers.
  • the lateral supports 35 'and 36' are responsible for supporting the chassis model 15 pre-assembled by the ends of the left side beam 130, while optionally the lateral support 37 'Io supports on its central part, in order to avoid buckling of left lateral stringer 130 during the later stages of the assembly; and similarly the side supports 39 'and 40' are responsible for supporting the chassis model 15 pre-assembled by the ends of the right side beam 140, while optionally the side support 41 'Io supports on its central part, in order avoid buckling right side member 140 during any subsequent stage of the assembly.
  • Each of the brackets 30 ', 34', 35 ', 36', 37 ', 39', 40 'and 41' have a tooling, for example, a fastener that can in turn have freedom of angular displacement.
  • the alignment reference Longitudinal LL ' can be maintained by means of stops that can be located in the left lateral zone 60' and the right lateral zone 70 '.
  • transverse alignment T-T ' is maintained by means of the central supports 30' and 34 ', which can have registration points that are introduced in the supporting crossbars, such central supports 30' and 34 'prevent displacements in the Y axis of the pre-assembled chassis model 15.
  • the supports 35 'and 36' located in the left lateral zone 60 'and the supports 39' and 40 'located in the right lateral zone 70' allow, as a whole, to maintain the vertical alignment reference VV by avoiding displacements in the Z axis of the pre-assembled chassis model 15.
  • the flexible work station 10 'can have a series of supports (not shown) distributed in the central zone 50', the left side zone 60 'and the right side zone 70' that allow it to support a model of pre-assembled chassis 15 regardless of its configuration type, for example, a conventional chassis 15 or cage type chassis (not shown), and at the same time maintain its longitudinal, transverse and vertical squaring.
  • the supports 34 ', 36' and 40 ' can be mounted on a rear platform 160' that moves in a coordinated manner in at least one coordinate axis, in particular in the X axis with respect to the base 20 '.
  • the coordinate movement in at least one coordinate axis (in this case in the X axis), with respect to the base 20 'of the rear platform 160', can be achieved by using manual, semi-automatic or automatic mechanisms.
  • only lateral or central supports or a combination of both can be found on the rear platforms 160 '.
  • the flexible work station 10 'can have at least one side and / or front platform (not shown) that can be coordinated in at least one coordinate axis and that can include one or more supports (not shown) .
  • Each of the brackets 30 ', 34', 35 ', 36', 37 ', 39', 40 'and 41' not only provide a support point to the pre-assembled chassis model 15, but each can be adapted to carry one or several tools with freedom of angular displacement in a fixed or removable way, such as fasteners or clamps that allow a complete support and confinement of the pre-assembled chassis model 15, in order to place the structural accessories 250 and / or make subsequent manufacturing jobs.
  • each of the supports 30 'to 42' can be coordinated in the X, Y and Z axes with respect to the base 20 'by using manual, semi-automatic or automatic mechanisms.
  • Each of the structural accessories 250 can be fed and placed in position within the chassis model 15 pre-assembled manually or by means of manual, semi-automatic or automatic material handlers, such as robots.
  • each of the supports 30 ', 34', 35 ', 36', 37 ', 39', 40 'and 41' can be removed from their respective base 20 'or from platform 160' with the purpose of being exchanged with each other or by other supports (not shown) that have defined or flexible features according to the pre-assembled chassis model to be supported, or simply to leave the free space within the base 20 'or platform 160 'to have better maneuverability during assembly, all this in order to provide a much more flexible work station.
  • FIG. 6 an embodiment of a method for matching structural chassis components using a flexible work station 10 to pre-assemble or assemble the chassis model 15.
  • the method starts in step 260, where each of the central supports 30, 31, 32, 33 and 34 are placed simultaneously or discontinuously in a desired coordinate position, according to the chassis model 15 to be assembled, by controlled displacements in any of the coordinate axes X, Y and Z and with or without angular controlled displacements of its tooling (fasteners 190). All these displacements are made with respect to vehicle zero.
  • central supports 30, 31, 32, 33 and 34 are located, in step 270, with their fasteners 190 open, they are loaded simultaneously or discontinuously with the front suspension and engine crossbar 80, the transmission crossbar 90, the cabin support cross member 100, the fuel tank cross member 110 and the spare tire cross member 120, respectively, as well as other optional cross members (crossbar front fender, rear fender crossbar, pull crossbar and crossbars of resistance to lateral impact deformation) that are loaded into their respective fasteners (not shown).
  • step 280 in order to maintain the transverse alignment of the chassis model 15 being assembled and thus retain its quadrature, the crosspieces are aligned with respect to the transverse alignment reference T-T '. This is achieved, for example, by locating and passing the guide devices (not shown) of the brackets 30 and 34 through the alignment registers (not shown) located in the front suspension and motor 80 traverse and in the cross traverse spare tire 120, respectively. Subsequently, once the cross members are aligned, in step 290, the fasteners 190 of each central support 30, 31, 32, 33 and 34 are closed simultaneously or discontinuously to retain each cross member in its position.
  • each of the central supports 30, 31, 32, 33 and 34 may be different, depending on whether the crossbar that it supports will be placed above, below or at the level of the left and right side beams 130 and 140.
  • step 300 the lateral supports 35, 36, 37, 39, 40 and
  • lateral supports 35, 36, 37, 39, 40 and 41 are located and with their fasteners 190 open, at step 310, these lateral fasteners are cooperatively loaded with the left lateral stringer 130, while the lateral supports 39, 40 and 41 cooperatively are loaded with the right side beam 140.
  • the left and right side beams 130 and 140 are longitudinally and vertically aligned with respect to the longitudinal alignment reference LL 'and vertical alignment reference VV of the chassis model 15 being assembled, in order of maintaining his square.
  • Longitudinal alignment is achieved, for example, by locating and passing the guide devices (not shown) of the lateral supports 38 and 42 (opposite lateral supports) through the alignment registers (not shown) located on each stringer 130 and 140
  • the longitudinal alignment is carried out by means of stops located in the front part of the flexible work station 10. With respect to the vertical alignment, this is achieved, for example, by maintaining at least the supports laterals 35, 36, 39 and 40 (extreme lateral supports) in the correct location on the coordinate axis Z with respect to the vehicle zero.
  • step 330 the fasteners 190 of each of the side supports 35, 36, 37, 39, 40 and 41 are simultaneously or discontinuously closed. retain each stringer.
  • step 340 the lateral supports 35, 36, 37, 39, 40 and 41 are simultaneously or discontinuously displaced on the coordinate axis Y, in order to position the left side member 130 and the right side member 140 in the desired position according to to the chassis model 15 being assembled, in order to make them marry the ends of the crossbars, whether the crossbars are butt married, above or below the stringers.
  • step 350 Once each of the structural components are married in their correct position, in step 350, they are welded by manual, semi-automatic or automatic means in order to form the chassis model 15.
  • step 360 the pre-assembled or assembled chassis model 15 is released from fasteners 190 and ejected to be moved to the next manufacturing stage.
  • the method described above can be used for any method of chassis assembly, for example, the method of assembly by stringers consisting of marrying stringers with crossbars, or the method of assembly of stairs that is based on marrying crossbars with portions of stringers for form portions of the chassis (stairs) that are then married to form a complete chassis.
  • step 380 the lateral supports 35 ', 36', 37 ', 39', 40 'and 41', which are retracted on the coordinate axis Y with respect to the longitudinal axis of the base 20 ', are located in a desired coordinate position, according to the pre-assembled chassis model 15, by controlled displacements on the coordinate axes X, Y and Z and with or without angular controlled displacements of their tooling (fasteners 190). All these displacements are made with respect to vehicle zero.
  • brackets with their fasteners 190 open, are loaded with the pre-assembled chassis model 15 of such that the chassis model 15 is supported on at least two of its crossbars and by the ends and center of its stringers.
  • step 400 the transverse, longitudinal vertical alignment of the pre-assembled chassis model 15 is maintained to preserve its quadrature.
  • the transverse alignment is maintained with respect to the reference of transverse alignment TT 'when locating and passing the guide devices (not shown) of the supports 30' and 34 'through the alignment registers (not shown) located in the crossbar of front suspension and engine 80 and on the cross-section of spare tire 120, respectively. While the longitudinal alignment and
  • step 410 the fasteners 170 of each of the central supports 30 'and 34' and lateral supports 35 ', 36', 37 ', 39', 40 'and 41' are simultaneously or discontinuously closed to retain the Pre-assembled chassis model 15.
  • the accessories are welded or manufacturing processes performed, for example, punching, drilling, laser cutting, inspection, and brushing, by manual, semi-automatic or automatic means in order to shape the chassis model
  • step 430 the fully assembled chassis model 15 is released from fasteners 190 and ejected to be moved to the next manufacturing stage.

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  • Automatic Assembly (AREA)

Abstract

Un poste flexible de travail applicable à de multiples modèles de châssis d'automobiles pour le couplage de composants structuraux ou de châssis. Le poste comprend une base comportant longitudinalement au moins une zone centrale et deux zones latérales; une pluralité de supports centraux dans la zone centrale coordonnés selon les besoins et aptes à supporter une pluralité de traverses selon le modèle de châssis devant être pré-assemblé ou assemblé, de manière qu'au moins deux des supports centraux maintiennent la référence d'alignement transversal pour le modèle de châssis; et qu'au moins deux supports latéraux sur chacune des zones latérales coordonnés selon les besoins et aptes à supporter les montants selon le modèle de châssis devant être prê-assemblé ou assemblé, de sorte qu'au moins un des supports latéraux de chaque zone latérale maintienne la référence d'alignement longitudinal pour le modèle de châssis et qu'au moins un parmi les supports latéraux de chaque zone latérale maintienne la référence d'alignement vertical pour le modèle de châssis.
PCT/MX2006/000082 2006-07-28 2006-07-28 Poste flexible de travail d'assemblage de multiples modèles de châssis d'automobiles WO2008013436A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/MX2006/000082 WO2008013436A1 (fr) 2006-07-28 2006-07-28 Poste flexible de travail d'assemblage de multiples modèles de châssis d'automobiles
MX2009001117A MX2009001117A (es) 2006-07-28 2009-01-28 Estacion flexible de trabajo para el ensamble de multi-modelos de chasis automotrices.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/MX2006/000082 WO2008013436A1 (fr) 2006-07-28 2006-07-28 Poste flexible de travail d'assemblage de multiples modèles de châssis d'automobiles

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WO2008013436A1 true WO2008013436A1 (fr) 2008-01-31

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102019528A (zh) * 2010-12-28 2011-04-20 唐山轨道客车有限责任公司 车辆底架焊接工装和焊接方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239739A (en) * 1991-04-01 1993-08-31 Gmfanc Robotics Corporation Method for the flexible assembly of assemblies
JPH09193859A (ja) * 1996-01-17 1997-07-29 Honda Motor Co Ltd 自動車のアンダーフレーム組付方法
JP2002037156A (ja) * 2000-07-31 2002-02-06 Techno Hirata:Kk 汎用治具装置及び汎用治具装置を用いたフレーム組立て治具システムの制御方法並びに記憶媒体
JP2005319969A (ja) * 2004-05-11 2005-11-17 Toyota Motor Corp シャシフレームの溶接補助装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239739A (en) * 1991-04-01 1993-08-31 Gmfanc Robotics Corporation Method for the flexible assembly of assemblies
JPH09193859A (ja) * 1996-01-17 1997-07-29 Honda Motor Co Ltd 自動車のアンダーフレーム組付方法
JP2002037156A (ja) * 2000-07-31 2002-02-06 Techno Hirata:Kk 汎用治具装置及び汎用治具装置を用いたフレーム組立て治具システムの制御方法並びに記憶媒体
JP2005319969A (ja) * 2004-05-11 2005-11-17 Toyota Motor Corp シャシフレームの溶接補助装置

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PATENT ABSTRACTS OF JAPAN vol. 1997, no. 11 *
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 6 *
PATENT ABSTRACTS OF JAPAN vol. 2005, no. 12 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102019528A (zh) * 2010-12-28 2011-04-20 唐山轨道客车有限责任公司 车辆底架焊接工装和焊接方法

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