CN1882401A - Tool and method for joining sheet material - Google Patents
Tool and method for joining sheet material Download PDFInfo
- Publication number
- CN1882401A CN1882401A CN 200480034314 CN200480034314A CN1882401A CN 1882401 A CN1882401 A CN 1882401A CN 200480034314 CN200480034314 CN 200480034314 CN 200480034314 A CN200480034314 A CN 200480034314A CN 1882401 A CN1882401 A CN 1882401A
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- sheet material
- roller
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- manipulator
- pressure roller
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- 239000000463 material Substances 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007493 shaping process Methods 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 208000034189 Sclerosis Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
An apparatus and method for forming and joining a first sheet material disposed in a nest (30) and a second sheet material (B) positioned on top of the first sheet material. The apparatus includes a positional pressure roller tool or positional pressure varying unit (50) for performing the forming and joining operations. The PPVU (50) is operatively associated with a programmable positioning device in the form of a robotic arm (52), such that the position of the robotic arm (52) relative to the socket (30) determines the pressure applied at the interface between the roller (72) and the socket (30).
Description
Technical field
The present invention relates to be used to be shaped and engage the system of first sheet material and second sheet material.More particularly, the present invention relates to a kind of pressurized control roller instrument and be used to be shaped and the method for the joining sheet material.
The explanation of correlation technique
Required a kind of operation the earliest is that an inner panel is engaged with an outside plate to form various body parts on the assembling history of automobile, comprising door, hood, fuel cell door and luggage-boot lid, all these all are called as " rotor plate " that embeds in the vehicle frame.Be used to be shaped and the known machine of the joining sheet material comprises pressurization-die apparatus, desktop (tabletop) and roller forming tool, the latter is the nearest device of researching and developing.
But the shortcoming by shaping of roller forming tool and grafting material is to be difficult to the desired change pressure of control tool.Adopted a kind of scheme to overcome this problem.
But a kind of known trial that is used for the required change pressure of control roll forming tool is: make to be folded in being used between manipulator panel and the roller instrument and to realize mechanical plastic air bag and can combine with the pressure feedback loop, closed-loop path of dynamic control gasbag pressure.This technology is to carry out during the stage of online manipulator programming and low-speed handing.
But manipulator is handled air bag and roller instrument along the excursion of sheet material, simultaneously, keeps constant distance between the panel of manipulator and sheet surface.When the pressure that is controlled at roller instrument place changed or detect imbalance in pressure feedback loop, closed-loop path, the pressure that should change air bag was to proofread and correct.
But it is limited being used to stablize the required gas compression and the reaction time of decompression, thereby the speed that the roller forming tool of baric systerm is housed can be limited in 200mm/sec.This speed restriction only allows to carry out low yield production as known in the art.
The servo motor current feedback of directly taking a sample from the controller of manipulator has been used in the trial of the variable pressure of another kind of known control existing system.But this sampling does not allow the mechanical checkout of forming tool or servo positioning system.This scheme of back obviously is least desirable.
Therefore, existing scheme can not solve be shaped greater than the speed of 200mm/sec and during the joining sheet material required variable pressure control relevant speed restricted problem.
Summary of the invention
Therefore, main purpose of the present invention is to provide a kind of equipment and method, and this equipment and method can overcome and be shaped and engage the problem that exists in first sheet material and second sheet material known technology with the rotor plate that forms vehicle.
A specific purpose of the present invention is to provide a kind of positioning pressure roller instrument of be shaped and engage first sheet material and second sheet material, but it comprises the effective ways of the change pressure that is used for control tool.
Another object of the present invention is to provide this positioning pressure roller instrument, and it can comprise that one is lived roller and a finishing roller.
Another object of the present invention is to provide this positioning pressure roller instrument, and its flexibility is enough to hold the plate of various sizes, shape and profile.
Another object of the present invention is to provide this positioning pressure roller instrument, and it can be used in combination with the manipulator of working with various machines.
These and other objects of the present invention realize by a kind of positioning pressure roller instrument is set, this positioning pressure roller instrument operably interrelates with programmable device that is the manipulator form and machine, wherein, described machine comprises the fixator that is used for first plate that is downside seat form, and the fixator that is used for second plate of presenting the side frame form.Positioning pressure roller instrument or positioning pressure change unit [" PPVU "] comprise that has a cylinder cap of catching reciprocating-piston and axle.On the top of cylinder interior and piston, be provided with and be the bias piece that compresses form of springs.Bias piece is pushed into extended position with piston.Shaping steel and roller forming tool also are fixed on the end of axle.
Make the sheet material A of a pair of combination, B is near the downside seat.Subsequently, accurately locate the first sheet material A by aligner.Afterwards, by known methods, make side frame, aim at the second sheet material B with respect to the first sheet material A.Subsequently, by known methods or by in PCT/US04/34238, disclosing and the vacuum system (it can be used in combination in this application) of protection, reliably with the first sheet material A fix in position.
Behind fix in position in this way, carry out the seam operation, be shaped and engage the first sheet material A and the second sheet material B by being fixed to roller forming tool on the PPVU.At roller shaping contact point place, the finder of manipulator is with the attitude location PPVU with respect to the surperficial vertical line approximate vertical of downside seat shape.The distance decision of location able to programme is applied to the pressure on the sheet surface between the panel of manipulator and the downside seat.This distance should be able to be guaranteed the spring compression and oppositely apply a certain amount of power by the roller forming tool.
Offset the power that is applied by PPVU by manipulator, it can show the flexible and intermittent motion in the gear drive that comprises its mechanical steering joint of the steel construction that comprises its main body inherently.
The location mistake can be caused in the flexibility of manipulator and gap.This mistake is the deviation between the physical location of the physical location of PPVU and program point.Therefore, need the error correction of program.
Write down total error and when manipulator departs from itself with temporal order and with the sequential pressure tabulation of the sheet material that is used to be shaped.Make this table form a kind of algorithm and use it for deviation in the positioning pressure program of proofreading and correct PPVU.
In case formation pressure, finder are just controlled manipulator, so as can to change distance between ground control panel and the downside seat, simultaneously, the roller forming tool drives along the seam of the sheet material A that is formed and engages.Roller forming tool press molding materials A simultaneously, supports it by the downside seat, thereby finishes bonding operation so that it is overlapped on the material B.
By providing equipment and the method that is used for sheet material shaping and combination recited above to realize these and other objects.
Brief description of drawings
With reference to below in conjunction with the detailed description of accompanying drawing to most preferred embodiment, can understand the present invention more fully, wherein, in all accompanying drawings, identical reference number is represented identical parts, wherein:
Fig. 1 is the perspective view of the machine that positioning pressure roller instrument is housed of most preferred embodiment of the present invention;
Fig. 2 is that this figure has illustrated that piston is in the position of the abundant extension of its essence unloading by the profile of roller tool assembly of the present invention shown in the side of home roll, shown in the 2-2 along the line;
Fig. 3 is the profile of of the present invention central roll tool assembly similar to Fig. 2, but it has shown that piston is in the position that extend part that its essence loads;
Fig. 4 has shown the profile of the roll assembly shown in the 4-4 along the line, and it has shown home roll and finishing roller, and these two rollers all have parallel axle, and these axles are installed by the axis of the piston rotationally, and this figure is with shown in axial along parallel axle;
Fig. 5 is the profile along the sheet material shown in Fig. 1 center line 4-4, the figure illustrates to be in to finish the material of position before that is shaped; And
Fig. 6 is the view similar to Fig. 5, the figure illustrates the material at their shaping position place.
Detailed description to most preferred embodiment of the present invention
Description of drawings most preferred embodiment of the present invention.Though the structure of illustrated embodiment is preferred, should expect: not breaking away under the described situation of the present invention, can adopt alternative structure of the present invention.
At first, referring to Fig. 1, shown that with the form of perspective view common label is 10 machine.Machine 10 comprises a side frame 20 and a downside seat 30 on one.The structure that it is to be understood that illustrated machine 10 is preferred, it should be interpreted as the restriction of other structure that can expect those skilled in the art.
Machine 10 is fixed with two sheet material parts, so that can carry out joint technology sheet material partly being offset or moving under the situation at out of position place.Two sheet materials partly comprise the first sheet material part A and the second sheet material part B.Two the sheet material A and the B that are bonded together by seam form a global facility, and wherein, the first sheet material part A forms outside or top layer, and the second sheet material part B forms inside or supporting structure.(as described below, in Fig. 6, having shown sheet material A and B) with combining form.As described, the first sheet material part A and the second sheet material part B have the general square shape structure, and this structure can form general square shape global facility.However, it should be understood that: in the present invention, also be suitable for adopting other shape.
Sheet material A and B are remained fixed between side frame 20 and the downside seat 30.In brief, sheet material A, B is near downside seat 30.Downside seat 30 comprises a seating face 32 that fluidly links to each other with a vacuum source (not shown).Subsequently, accurately locate by 34 couples first sheet material A of aligner.Afterwards, make side frame 20 drop to accurate position by a manipulator or linear slide.Engage the alignment pin that main locating hole stretches out by the frame from material B, described frame makes the first sheet material A locate with respect to the second sheet material B.Subsequently, by being applicable to the vacuum plant of its downside, with the first sheet material A fix in position.
In this way behind the fix in position, carry out the seam operation, so that be shaped and the first sheet material A is engaged with the second sheet material B by the roller instrument.Fig. 1 has shown that PPVU is as handling the assembly 50 that combines with manipulator 52.On the manipulator panel 54 that PPVU assembly 50 rigidity are mounted to rotationally with manipulator 52 links to each other.Manipulator 52 itself operationally links to each other with computer 56.Computer 56 is preferably by below realizing the specific program that further specifies the motion of manipulator 52.PPVU assembly 50 comprises a home roll instrument 58 and a finishing roller instrument 60.In this way, be installed on the rotatable fixing panel 54,, select home roll instrument 58 and finishing roller instrument 60 rotationally according to desired procedure by PPVU assembly 50.
The section that in Fig. 2 and 3, has shown home roll instrument 58.The section of roll assembly 50 as shown in Figure 4, and it has shown home roll instrument 58 and finishing roller instrument 60.According to these accompanying drawings,, home roll instrument 58 is installed on the panel 54 by a reciprocating type wheel hub 62 with the piston end 64 that is installed in the cylinder 66.The road is such as known in the art, and cylinder 66 rigidity act on the panel 54 of manipulator.Bias piece or spring 68 biases piston ends 64 leave the end wall of cylinder 66.But the selection scheme as using illustrated spring bias piece 68 can be provided with a pneumatic cylinder in the position of spring 68, to realize essential bias voltage.In this way, PPVU assembly 50 provides positioning pressure roller instrument, thus manipulator panel 54 with respect to the determining positions of downside seat 30 place, the interface applied pressure between the wear surface 78 of seam S and roller 72.
Referring to Fig. 4, home roll 72 has sclerosis wear surface 78 especially.Panel 80 is screwed to home roll 72, thereby with respect to base bearing 74, with wear surface 78 locks in place of sclerosis.
Finishing roller instrument 60 comprises a single mandrel 82, and this axle is by a row bearing 84, by hub 62 rotatably supports.Bearing 84 is arranged in the cavity 86 that is defined in the hub 62.Locking piece 88 is fixed on an end of axle 82 by screw thread, thereby bearing 84 is clamped between them.Bearing 84 itself is maintained in the hub 62 by the panel 90 of screwing to the hub 62.
Instrument insert 92 is positioned to be limited in the hole 94 of an end of axle 82 slidably, and the end of the axle of this qualification porose 94 is opposite with the end of thread that is fixed with locking piece 88.Instrument insert 92 is slidedly assemblied in the hole 94 and delimits face 96 by a ball catch and selectively is locked in due position.Spherical locking piece has adopted industrial standard architectures, and this structure allowed before removing the instrument insert, pushes back ball bearing 98 and spring 102 is pressed on the stop plug 104 by hole 100 on inspection, thereby can remove the instrument insert.Though the external diameter of instrument 92 can adopt various sizes, still, preferably adopt standard size 20mm known in the art.As known in the art, instrument insert 92 can be stair-stepping, and can have the surface that two or more have different-diameter.
The bias voltage of parts (or pneumatic cylinder) 68 and piston end 64 linear direct ratios.Each unit of the piston end 64 of rectilinear path all moves in the cylinder 66, and it increases the bias voltage of parts 68 with linear scale.Replacing spring 68 to use under the situation of pneumatic cylinder 68, inflation and piston end 64 move in the cylinder 64 therein.This linear relationship is the basis that manipulator duty allocation pressure changes program.
Operation
Below, will carry out the generality explanation to the operation of machine 10.When beginning to operate, last side frame 20 has been in its raised position, thereby supposes that having finished seam operates and removed by the part of seam, therefore, keeps 30 emptyings of downside seat.
At first, the adhesive (as shown in Figure 5 " M ") of known quantity is applied to approaching surf zone, at this place, the first sheet material A engages with the second sheet material B.Utilize adhesive to guarantee that sheet material connects more completely.If wish, adhesive is engaged with a sheet material or two sheet materials.Known adhesive can comprise the goods that are filled with bead known in the art.
Subsequently, operate machine 10 by personnel operation person or by programmable logic controller known in the art.Regardless of operator's type, all it is referred to as below " operator ".
In case adhesive is selected to be applied on sheet material A and the B, the operator then makes the first sheet material A and the second sheet material B combine, subsequently, the sheet material of combination is placed on the seating face 32, and, make the first sheet material A (that is, the outer surface with the first sheet material A places on the seating face 32) down.Subsequently, by handling second pneumatic supply starting aligner assembly, 34 (, it is to be understood that each side preferably has one or two aligner), so that the location refers to advance to their joint and place, position location though shown two aligner.After engaging in this way, the first sheet material A is with respect to seating face 32 location.This layout can promote the reliable micro-positioning of the first sheet material A.
Subsequently, operator's engage mechanical hand or linear slide (all not shown) drop to the position that engages with material B so that go up side frame 20.The control section of manipulator is guaranteed to go up side frame 20 and is moved with accurate attitude.
In case the first sheet material A is in place, just start vacuum source between surperficial and a plurality of vacuum tank (not shown) of the first sheet material A, to form vacuum.Therefore, fix the first sheet material A.By being fixed on the first sheet material A and the coupling unit of the second sheet material B in the machine 10, the illustrated position location that starting pneumatic supply (not shown) and the finger of drawing aligner 34 are left them reaches the position of approximate horizontal.After locating in this way, finger will can not interfere with shaping operation subsequently.
Subsequently, form seam, form operation by periphery around the combination of the first sheet material A and the second sheet material B.Referring to Fig. 5 and 6, shaping operation is carried out in two steps.At first, form flange F from roughly upright position A to final shaping position A '.Then, from the extremely final shaping position A of roughly upright position A ' " the formation flange F.Then, from the extremely final shaping position A of preform position A ' " the formation flange F.Form described seam S to lock and to engage first and second sheet material A and the B.As top emphasizing, the seam of the first sheet material A and the second sheet material B realizes by home roll instrument 58 or finishing roller instrument 60.Selection between two rollers 58,60 is according to being realized by the proximity of joint filler.Particularly, excessive so that cause that the second sheet material B produces under the situation of undesirable distortion or show the tight radial form (tight radial form) that flows between inside and outside with respect to frame at the surf zone of the sheet material of combination for actual turning round at home roll instrument 58, thereby cause all can selecting to repair roller instrument 60 under the unpractical situation of use of big home roll instrument 58.
An advantage provided by the invention is: the offline programming that can control the manipulator 52 of home roll instrument 58 and finishing roller instrument 60.When joint home roll instrument 58 was operated to carry out seam, should consider in advance: manipulator 52 meeting generations itself can cause a certain amount of structural deviation and the fit clearance thereof of position error.The present invention can proofread and correct this error during offline programming and programming subsequently originally, thereby can form the accurate seam of the high duplication that can not lose accuracy.Correction program by the computer 56 of packing into can be eliminated error, and this program can be controlled the locating hinge axle and the roller 58 of manipulator 52 when the shaping sheet material, but 60 change pressure.
In case finish the shaping of the first sheet material A and the second sheet material B and engage, just remove side frame 20 from the second sheet material B, and, cut off vacuum source 208, thereby the first sheet material A is moved from seating face 32 once more.Unload sheet material A and the B that is combined into from the top of seating face 32 and install down a pair of sheet material A and B additional.Thus, repeat the operation of joint and seam.
Those skilled in the art should understand from the description of front: general technique instruction of the present invention can adopt various forms to realize.Therefore, though describe the present invention in conjunction with specific embodiment of the present invention,, because by research accompanying drawing, specification and following claim, those skilled in the art can understand other improved form, and therefore, actual range of the present invention should not be restricted.
Claims (22)
1. equipment that is used to be shaped and engages first sheet material and second sheet material, this equipment comprises:
A seat that is used for fixing first sheet material;
A manipulator that operably interrelates with described seat;
A positioning pressure roller instrument, it is used for being shaped and engaging first sheet material and second sheet material, and described positioning pressure roller instrument operably interrelates with described manipulator.
2. equipment according to claim 1, it also comprises: the computer with roller tool drives program, this computer operably interrelate with described manipulator and described positioning pressure roller instrument.
3. equipment according to claim 1, it also comprises: a bias piece, it is used for during being shaped and engaging first sheet material and second sheet material described positioning pressure roller instrument being biased on second sheet material and first sheet material.
4. equipment according to claim 3, wherein: described bias piece is a spring.
5. equipment according to claim 3, wherein: described bias piece comprises a pneumatic cylinder.
6. equipment according to claim 1, wherein: described positioning pressure roller instrument comprises a home roll and a finishing roller.
7. equipment according to claim 6, wherein: described home roll and described finishing roller have a public hub, and described public hub is rotatably mounted on the described manipulator.
8. equipment according to claim 1, wherein: described seat comprises that a side face, described first sheet material and second sheet material are arranged on this side face so that form and engage by described positioning pressure roller instrument.
9. equipment that is used to be shaped and engages first sheet material and second sheet material, described first sheet material has periphery, and described periphery has certain profile, and described equipment comprises:
A seat that is used for fixing first sheet material, described seat comprises a material contact portion, described material contact portion cooperates with the peripheral profile of described first sheet material basically;
A shaping and a conjugative component that operably interrelates with described seat, this assembly comprises a manipulator and a positioning pressure roller instrument, described positioning pressure roller instrument comprises a roller, this roller is used for by described first sheet material of roll extrusion and second sheet material between present and the described roller, is shaped and engages first sheet material and second sheet material; And
Computer with roller tool drives program, this computer operably interrelate with described manipulator and described positioning pressure roller instrument.
10. equipment according to claim 9, it also comprises: a bias piece, it is used for during being shaped and engaging first sheet material and second sheet material described positioning pressure roller instrument being biased on second sheet material and first sheet material.
11. equipment according to claim 10, wherein: described bias piece is a spring.
12. equipment according to claim 10, wherein: described bias piece comprises a pneumatic cylinder.
13. equipment according to claim 9, wherein: described positioning pressure roller instrument comprises a home roll and a finishing roller.
14. equipment according to claim 13, wherein: described home roll and described finishing roller have a public hub, and this public hub is rotatably mounted on the described manipulator.
15. equipment according to claim 13, wherein: described finishing roller comprises a tool insert hole and an interchangeable instrument insert.
16. equipment according to claim 15, wherein: described finishing roller also comprises a spherical locking piece that is used for selectively engaging described interchangeable instrument insert.
17. a method that is used to be shaped and engages first sheet material and second sheet material, described first sheet material has periphery, and described periphery has certain profile, and this method comprises:
First sheet material is fixed in the seat, so that the periphery supporting that makes described first sheet material is on the material contact portion of described seat;
Second sheet material is placed on the top of described first sheet material;
Locate the manipulator with positioning pressure roller instrument with respect to described seat, wherein, described positioning pressure roller instrument has a roller, so that described roller engages from the described flange that stretches out; And
Handle described manipulator so that described positioning pressure roller instrument moves along tool path, so that described roller forms described flange at the periphery of described second sheet material, wherein, described manipulator with respect to the determining positions of seat applied pressure between described roller and the described material contact portion.
18. method according to claim 17, it also comprises: the roller tool drives program of carrying out the controller be used for handling described manipulator, so that by along perpendicular to the direction of described tool path, locate described positioning pressure roller instrument, thereby change described applied pressure along described tool path with respect to the material contact portion.
19. method according to claim 17, wherein: described local pressure roller has one second roller, and this described method also comprises:
Reorientate described manipulator, so that described second roller engages the flange that stretches out from described periphery; And
Handle described manipulator so that described positioning pressure roller instrument moves along second tool path, so that described second roller forms described flange at the periphery of described second sheet material.
20. method according to claim 19, wherein: the part of the part of described first tool path and second tool path is overlapping, so that carry out initial shaping operation, and described second roller is carried out shaping operation subsequently.
21. method according to claim 19, wherein: described first tool path and described second tool path are at a distance of certain distance, so that described roller forms the first of described flange, described second roller forms the second portion of described flange.
22. method according to claim 17, it also comprises: adhesive coating at least one of described first sheet material and second sheet material, so that when being shaped and engage, described first sheet material is bonded on second sheet material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52396103P | 2003-11-21 | 2003-11-21 | |
| US60/523,961 | 2003-11-21 | ||
| US60/524,080 | 2003-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1882401A true CN1882401A (en) | 2006-12-20 |
Family
ID=37520160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480034314 Pending CN1882401A (en) | 2003-11-21 | 2004-11-19 | Tool and method for joining sheet material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1882401A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259139A (en) * | 2011-01-10 | 2011-11-30 | 无锡美誉金属复合新材料有限公司 | Splicing machine for two-sided metal composite board |
| CN101687245B (en) * | 2007-06-01 | 2012-07-18 | Fftedag生产有限公司 | Edge curling tool |
| CN103128186A (en) * | 2011-12-01 | 2013-06-05 | 现代自动车株式会社 | Panel hanger apparatus for roller hemming |
| CN108602108A (en) * | 2016-02-02 | 2018-09-28 | 本田技研工业株式会社 | Workpiece bending method and workpiece strip bending device |
| CN114101500A (en) * | 2020-08-27 | 2022-03-01 | 江苏怡通控制系统有限公司 | Thermal protector bimetallic strip processing equipment |
-
2004
- 2004-11-19 CN CN 200480034314 patent/CN1882401A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101687245B (en) * | 2007-06-01 | 2012-07-18 | Fftedag生产有限公司 | Edge curling tool |
| CN102259139A (en) * | 2011-01-10 | 2011-11-30 | 无锡美誉金属复合新材料有限公司 | Splicing machine for two-sided metal composite board |
| CN103128186A (en) * | 2011-12-01 | 2013-06-05 | 现代自动车株式会社 | Panel hanger apparatus for roller hemming |
| US9457855B2 (en) | 2011-12-01 | 2016-10-04 | Hyundai Motor Company | Panel hanger apparatus for roller hemming |
| CN108602108A (en) * | 2016-02-02 | 2018-09-28 | 本田技研工业株式会社 | Workpiece bending method and workpiece strip bending device |
| CN108602108B (en) * | 2016-02-02 | 2020-01-07 | 本田技研工业株式会社 | Workpiece bending method and workpiece bending device |
| CN114101500A (en) * | 2020-08-27 | 2022-03-01 | 江苏怡通控制系统有限公司 | Thermal protector bimetallic strip processing equipment |
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Open date: 20061220 |