CN101530881B - Robot rolling hemming molding feature die covering a plurality of hemming methods - Google Patents
Robot rolling hemming molding feature die covering a plurality of hemming methods Download PDFInfo
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- CN101530881B CN101530881B CN2009100493991A CN200910049399A CN101530881B CN 101530881 B CN101530881 B CN 101530881B CN 2009100493991 A CN2009100493991 A CN 2009100493991A CN 200910049399 A CN200910049399 A CN 200910049399A CN 101530881 B CN101530881 B CN 101530881B
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Abstract
The invention relates to a robot rolling hemming molding feature die covering a plurality of hemming methods, belonging to the technical field of plastic forming and comprising a lower die, a base, a pressure plate and a clamping device. The upper surface of the lower die has a structure surface the same as the lower surface of the pressure plate, and the structural surface comprises a plane and a surface which are tangential, the external edge of the surface has all together three hemming lines, wherein, surface curves are opposite to each other, a surface straight line is connected with two surface curves; two hemming lines by the tangential connection of the plane and the surface curves are a long straight edge and a middle straight edge, the other hemming line opposite to the surface straight line and vertically connected with the long straight edge is a short straight edge, and the hemming feature of the transition part between the long straight edge and the short straight edge simultaneously possess the hemming shapes of outward convex and inward concave plane curves, etc. the invention basically covers the main deformation characteristics of hemming molding of most covering parts, can obtain more hemming properties of deformation sheet under deformation pattern and can satisfy the requirement of auto sheet rolling hemming performance studies.
Description
Technical field
The present invention relates to the mould in a kind of plastic forming technology field, specifically is a kind of robot rolling bound edge molding feature die of containing multiple bound edge mode.
Background technology
Bound edge is a kind of common processing method that connects automobile exterior panel and inner panel, is meant a kind of manufacturing process that the good outside plate of flange is carried out wrapping after the progressively bending inner panel, is last one forming process of stamping parts.Flexibility from the bodywork parts drawing to assembling process becomes the development trend of automobile making; Robot rolling bound edge technology is to realize the state-of-the-art technology of sub-unit bound edge flexibilities such as vehicle body four-door two-lid; Compare the conventional molds wrapping process; Greatly reduce mould development time and cost, greatly improve the flexibility of production line.But rolling pressing edge covering is because distortion is complicated; Forming defects is various informative; Defect diagonsis and dimensional accuracy control is difficulty more, is necessary to invent the robot rolling bound edge molding feature die that a cover is contained multiple bound edge mode, carries out rolling pressing edge covering research; Understand the principle that defective produces, the control generation of defects.
Literature search through to prior art is found; People from France such as S.Thuillier on periodical " Journal of Materials Processing Technology ", published thesis in 2008 " Numericalsimulation of the roll hemming process " (" numerical simulation of rolling pressing edge covering process "); This article has carried out simulation study to the plane curve rolling pressing edge covering; This research does not relate to the defective of other bound edge modes mainly corresponding to the dimensional defects of plane curve bound edge form.Guohua Zhang, Jack Hu etc. study for the plane and straight line of mold pressing bound edge and the dimensional defects of curved surface curve and the mechanism of warpage defective, and in experiment, have realized simulation, but geometric properties also has tangible limitation.For the various automobile panel of geometry; Its formed features is contained polytype bound edge; The bound edge characteristic that comprises all kinds straight line or curve form so adopt simple curve to simulate rolling pressing edge covering, has bigger limitation for the application and the research of vehicle plate surface mass property.
Summary of the invention
The present invention is directed to the deficiency of prior art; A kind of robot rolling bound edge molding feature die of containing multiple bound edge mode is provided; The rolling pressing edge covering drip molding is realized and the corresponding to 3 D deformation of actual bound edge part, can be satisfied the requirement of research Automobile Plate rolling pressing edge covering performance study.
The present invention realizes through following technical scheme, the present invention includes counterdie, base, pressing plate, clamping device.Counterdie places on the base, and base fixes on the ground, and pressing plate is arranged on the counterdie through clamping device.The counterdie lower surface keeps level; The pressing plate upper surface keeps level; The counterdie upper surface has identical structure shape face with the pressing plate lower surface, and this structure shape face comprises two parts: plane and curved surface, plane and curved surface keep tangent; Counterdie upper surface curved surface is concave upright, and pressing plate lower surface curved surface concave surface is downward.
Said counterdie upper surface, its curved surface is concave upright, and the edge is a chamfering.
Said curved surface remove with the coupling part, plane outside, outward flange has three bound edge lines, it is relative that two bound edge lines are wherein arranged, these two bound edge lines are the curved surface curve; There is straight line to connect above-mentioned two curved surface curves in said three bound edge lines, is the curved surface straight line.
Said plane is meant the part tangent with curved surface; Two bound edge lines that are connected with the curved surface contact of a curve are straight line; Be a long straight flange and a middle straight flange; Vertical what be connected is a short straight flange relatively and with long straight flange with the curved surface straight line, long straight flange, middle straight flange and lack these three straight flanges formation plane and straight line bound edge parts of straight flange.
Straight flange and short straight flange in said, the transition portion between them is provided with evagination and indent plane curve.The evagination plane curve comprises minor radius evagination circular arc, long radius evagination circular arc; Interior concave plane song is interior concave arc; Radius is tangent is connected for interior concave arc and long radius evagination circular arc etc., is connected this straight line and short straight flange and curved surface straight line parallel through straight line is tangent with minor radius evagination circular arc.
Said minor radius evagination circular arc, for the tangent evagination quadrant arc that is connected of middle straight flange, its radius of curvature is less, generally is taken as 20 to 50mm; Said long radius evagination circular arc, for the tangent evagination quadrant arc that is connected of short straight flange, its radius of curvature is bigger, generally is taken as 60 to 100mm.
Said base upper surface maintenance level is installed, and is connected with the counterdie lower surface through screw thread, and lower surface links to each other with ground through foundation bolt, and the inner integral body downwards of base is cavity, wall thickness 10mm to 15mm.
Said pressing plate and counterdie cooperate to be installed, and pressing plate lower surface curved surface concave surface is downward, relatively counterdie upper surface pressing plate lower surface shape towards interior biasing 12 to 15mm; Upper surface keeps level, carries out the centre and empties, and after emptying, intermediate transverse girder is divided into two big frames with pressing plate.
When the present invention uses; To treat that bound edge outside plate and inner panel be in the same place through glue bond; Place on the counterdie, counterdie places on the base, and base fixes on the ground through anchoring bolt; Pressing plate is pressed in plate on the counterdie through clamping device, and the outline of final formation of parts is by the profile decision of counterdie upper surface.
Vehicle body bound edge part since the specific (special) requirements of outward appearance and rigidity and general experienced over stampings all have material thin, complex-shaped, be mostly characteristics such as complex space curved surface, surface quality requirement height.Body outer skin bound edge forming mode is not the shaping of single curve form often, but it is together compound and be shaped to comprise deformation patterns such as plane and straight line, plane curve, curved surface straight line, curved surface curve.
The shaping mode more complicated that mould of the present invention produces, contained the characteristic of most of rolling pressing edge covering shaping covering basically: the curved surface curved portion has two curved surface curves that radius of curvature is bigger with reference to the curve bound edge characteristic about front and rear covers; The curved surface straight line portion is a curved surface straight line that two sections curved surface curves are linked to each other with reference to the straight line bound edge characteristic of front and rear covers front and rear part; The plane and straight line partial reference bound edge characteristic of the outer peripheral straight line portion in the car door left and right sides; Have a long straight flange, a middle straight flange and a short straight flange; Long straight flange is connected with the curved surface contact of a curve with middle straight flange, and short straight flange is relative with the curved surface straight line, is connected with long straight flange is vertical; The plane curve partial reference bound edge characteristic of car door near the wheel place; Have minor radius evagination circular arc, long radius evagination circular arc and interior concave arc; Radius is tangent is connected for interior concave arc and long radius evagination circular arc etc., is connected through straight line is tangent with minor radius evagination circular arc.
The various automobile panel bound edge deformational behavior of the present invention and shape is more close; Can obtain distortion panel surface bound edge characteristic under the more changeable shape pattern; Can satisfy the requirement of Automobile Plate rolling pressing edge covering performance study; Broken through the limitation that simple part manufacturing process had that the Automobile Plate rolling pressing edge covering adopted: (1) bound edge track has comprised four kinds of geometric properties such as plane and straight line, plane curve, curved surface straight line, curved surface curve, can realize bringing out under the changeable shape pattern plate bound edge defective; (2) mould structure is simple, relies on alignment pin and quick chuck to realize locating and stepping up; (3), can study the relation between the bound edge performance and each factor in the body outer skin rolling pressing edge covering through changing material, bound edge type, bound edge speed, flange parameter and other process conditions comprehensively.
Description of drawings
Fig. 1 is a unitary mould structural representation of the present invention
Fig. 2 is the counterdie structural representation
Fig. 3 is the understructure sketch map
Fig. 4 is the pressure plate structure sketch map
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
As shown in Figure 1, present embodiment relates to a kind of robot rolling bound edge molding feature die of containing multiple bound edge mode, comprising: clamping device 1, pressing plate 2, counterdie 3, base 4.Treat that bound edge outside plate and inner panel place on the bound edge counterdie 3 through glue bond together, counterdie 3 places on the base 4, and base 4 is connected with ground through anchoring bolt, and pressing plate 2 is pressed in plate on the counterdie 3 through clamping device 1.Rolling pressing edge covering machine people sets the roller movement locus outside plate flange edge is carried out bound edge, accomplishes being connected of inner panel and outside plate, and the outline of final formation of parts is by the profile decision of counterdie 3 upper surfaces.For guaranteeing that the die clearance is even in the forming process, pressing plate 2 cooperates with counterdie 3 to be installed.Counterdie 3 lower surfaces keep level, and pressing plate 2 upper surfaces keep level, because 2 of pressing plates clamp part edge; Manual work for ease grasps pressing plate and installs, and makes things convenient for clamping device 1 to apply clamping, and pressing plate 2 has been carried out emptying processing; Through intermediate transverse girder pressing plate 2 is divided into two big frames; Counterdie 3 upper surfaces have identical structure shape face with pressing plate 2 lower surfaces, are divided into two parts: plane and curved surface, plane and curved surface keep tangent; Counterdie 3 upper surface curved surfaces are concave upright, and pressing plate 2 lower surface curved surface concave surfaces are downward.For outside plate flange edge and pressing plate 2 in the assurance robot rolling bound edge process do not interfere; Size with reference to flange height and roller; The relative counterdie 3 upper surface shapes of pressing plate 2 lower surface shape faces to 15mm, guarantee that the rolling pressing edge covering process carries out smoothly towards interior biasing 12.
As shown in Figure 2, the lower surface of counterdie 3 keeps level, and upper surface is divided into plane and two parts of curved surface, and it is tangent that plane and curved surface keep, and curved surface is concave upright, and the edge carries out 30 ° of chamferings.
Curvature portion is with reference to the geometry of most car front and rear covers; Curvature of curved surface is compared coverings such as car door and top cover and is wanted big, and the curvature of curved surface radius is 200mm, and the curved surface central angle is 30 °; Curved surface remove with the coupling part, plane outside; Outward flange has three bound edge lines, and it is relative that two bound edge lines are wherein arranged, and these two bound edge lines 5 and 7 are the curved surface curve; Article three, have straight line 6 to connect above-mentioned two curved surface curves 5 and 7 bound edge characteristics in the bound edge line, be curved surface straight line 6, the bound edge line length is 400mm.
As shown in Figure 2, planar section is and the tangent position of counterdie 3 upper surface curvature portions, and this partial geometry characteristic has contained two kinds of bound edge modes such as plane and straight line and plane curve with reference to the bound edge characteristics of most of car doors.Two bound edge lines that the plane is connected with the curved surface contact of a curve are straight line; Article one, long straight flange 8 and a middle straight flange 13; With curved surface curve 5,7 relatively and long straight flange 8 vertical what be connected is a short straight flange 9, wherein long straight flange 8 length are 500mm, middle straight flange 13 length are 320mm; Short straight flange 9 length are 150mm, and these three straight flanges are the plane and straight line part of characteristic wrapping mold; The bound edge characteristic of middle straight flange 13 and short straight flange 9 transition portions; With reference to the bound edge characteristics of most car doors near the wheel place, have bound edge forms such as evagination and indent plane curve simultaneously, the evagination plane curve comprises minor radius evagination circular arc 12, long radius evagination circular arc 10; Interior concave plane song is interior concave arc 11; Interior concave arc 11 and 10 tangent connections such as radius such as grade of long radius evagination circular arc are connected through straight line is tangent with minor radius evagination circular arc 12, and this straight line is parallel with curved surface straight line 6 with short straight flange.
Said minor radius evagination circular arc 12 is and the middle straight flange 13 tangent evagination quadrant arcs that are connected that its radius of curvature is less, generally is taken as 20 to 50mm; Said long radius evagination circular arc 10, for the short straight flange 9 tangent evagination quadrant arcs that are connected, its radius of curvature is bigger, generally is taken as 60 to 100mm.
Said base upper surface maintenance level is installed, and is connected with the counterdie lower surface through screw thread, and lower surface links to each other with ground through foundation bolt, and the inner integral body downwards of base is cavity, wall thickness 10mm to 15mm.
In the present embodiment, minor radius evagination circular arc 12 radius of curvature are 40mm, and long radius evagination circular arc 10 radius of curvature are 70mm; Interior concave arc 11 and 10 tangent connections such as radius such as grade of long radius evagination circular arc; Radius of corner also is 70mm; Be connected through straight line is tangent with minor radius evagination circular arc 12; This straight line is parallel with curved surface straight line 6 with short straight flange 9, and indent fillet and evagination fillet is connected with reference to the sharply design at place of covering curvature variation here.
As shown in Figure 3, said base 4 upper surface maintenance levels are installed, and are connected with counterdie 3 lower surfaces through screw thread, and lower surface links to each other with ground through foundation bolt, the downward hollow of base 4 inner body, and wall thickness 10mm to 15mm, wall thickness is got 12mm in the present embodiment.
As shown in Figure 4, said pressing plate 2 cooperates with counterdie 3 to be installed, and pressing plate 2 lower surfaces have identical structure shape face with counterdie 3 upper surfaces, and the curved surface concave surface is downward, and counterdie 3 upper surface pressing plates 2 lower surface shapes are towards interior biasing 12mm relatively; Upper surface keeps level, and the centre is emptied, and intermediate transverse girder is divided into two big frames with pressing plate 2.
Said clamping device 1 is made up of quick chuck; Be divided into along the roll extrusion edge and be furnished with 14 quick chucks; Quick chuck is installed in through screw on the plane of counterdie 3 upper surfaces, chuck clamping platen during clamping, and single quick chuck maximum can apply the clamping force of 2KN size.
According to the robot rolling bound edge molding feature die of containing multiple bound edge mode that obtains; Designing and preparing is treated the bound edge inner and outer plates; The bound edge part is assembled clamping, confirm experiment and rolling pressing edge covering forming parameter, robot roller movement locus is programmed through off-line programming software; Working procedure carries out the simulated experiment of robot rolling bound edge.
From above-mentioned result of implementation, the robot rolling bound edge feature die that obtains is contained the main deformation behaviour that most of covering bound edges are shaped basically: curved surface curve bound edge, curved surface straight line bound edge, plane and straight line bound edge, plane curve bound edge.Can simulate covering different parts bound edge shaping situation more all sidedly with this wrapping mold; And the automobile panel bound edge deformational behavior various with shape is more close; Distortion panel surface bound edge characteristic under the more changeable shape pattern can be obtained, the requirement of research Automobile Plate rolling pressing edge covering performance study can be satisfied.
Claims (9)
1. a robot rolling bound edge molding feature die of containing multiple bound edge mode comprises counterdie, base, pressing plate, clamping device, and counterdie places on the base; Base fixes on the ground, and pressing plate is arranged on the counterdie through clamping device, it is characterized in that: the counterdie lower surface keeps level; The pressing plate upper surface keeps level, and the counterdie upper surface has identical structure shape face with the pressing plate lower surface, and this structure shape face comprises two parts: plane and curved surface; It is tangent that plane and curved surface keep; Counterdie upper surface curved surface is concave upright, and pressing plate lower surface curved surface concave surface is downward, wherein:
Said curved surface except that with the coupling part, plane, outward flange has three bound edge lines, it is relative that two bound edge lines are wherein arranged, these two bound edge lines are the curved surface curve; There is straight line to connect above-mentioned two curved surface curves in said three bound edge lines, is the curved surface straight line;
Two bound edge lines that said plane is connected with the curved surface contact of a curve are straight line; Be a long straight flange and a middle straight flange; Vertical what be connected is a short straight flange relatively and with long straight flange with the curved surface straight line, long straight flange, middle straight flange and lack these three straight flanges formation plane and straight line bound edge parts of straight flange; Straight flange and short straight flange in said; Transition portion between them is provided with evagination and indent plane curve; The evagination plane curve comprises minor radius evagination circular arc, long radius evagination circular arc, and interior concave plane song is interior concave arc, and radius is tangent is connected for interior concave arc and long radius evagination circular arc etc.; Interior concave arc is connected through straight line is tangent with minor radius evagination circular arc, this straight line and short straight flange and curved surface straight line parallel.
2. the robot rolling bound edge molding feature die of containing multiple bound edge mode according to claim 1 is characterized in that said counterdie upper surface, its edge are chamfering.
3. the robot rolling bound edge molding feature die of containing multiple bound edge mode according to claim 1 is characterized in that, said minor radius evagination circular arc is and the tangent evagination quadrant arc that is connected of middle straight flange; Said long radius evagination circular arc is and the tangent evagination quadrant arc that is connected of short straight flange.
4. the robot rolling bound edge molding feature die of containing multiple bound edge mode according to claim 3 is characterized in that, said minor radius evagination circular arc, and its radius of curvature is 20 to 50mm.
5. the robot rolling bound edge molding feature die of containing multiple bound edge mode according to claim 3 is characterized in that, said long radius evagination circular arc, and its radius of curvature is 60 to 100mm.
6. the robot rolling bound edge molding feature die of containing multiple bound edge mode according to claim 1 is characterized in that, said base upper surface keeps level, is connected with the counterdie lower surface through screw thread, and lower surface links to each other with ground through foundation bolt.
7. according to claim 1 or the 6 described robot rolling bound edge molding feature dies of containing multiple bound edge mode, it is characterized in that the inner integral body downwards of said base is cavity, wall thickness is 10mm to 15mm.
8. the robot rolling bound edge molding feature die of containing multiple bound edge mode according to claim 1; It is characterized in that; Said pressing plate lower surface, relative counterdie upper surface, pressing plate lower surface shape towards interior biasing 12 to 15mm; Empties in the middle of the pressing plate upper surface, and be provided with intermediate transverse girder pressing plate is divided into two big frames.
9. the robot rolling bound edge molding feature die of containing multiple bound edge mode according to claim 1 is characterized in that said clamping device is made up of quick chuck, and quick chuck is arranged on the counterdie upper surface through screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100493991A CN101530881B (en) | 2009-04-16 | 2009-04-16 | Robot rolling hemming molding feature die covering a plurality of hemming methods |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100493991A CN101530881B (en) | 2009-04-16 | 2009-04-16 | Robot rolling hemming molding feature die covering a plurality of hemming methods |
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| Publication Number | Publication Date |
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| CN101530881A CN101530881A (en) | 2009-09-16 |
| CN101530881B true CN101530881B (en) | 2012-05-23 |
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| CN110421640B (en) * | 2019-07-10 | 2024-03-19 | 杭州中亚机械股份有限公司 | Prefabricated cup |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003037541A1 (en) * | 2001-10-31 | 2003-05-08 | Tri Engineering Company Limited | Device and method for hemming processing |
| CN1669694A (en) * | 2005-03-31 | 2005-09-21 | 上海交通大学 | Parallel robot edge-coating system with a rotary table |
| CN2732384Y (en) * | 2004-09-29 | 2005-10-12 | 中国重型汽车集团有限公司 | Car door edge covering device |
| CN2865908Y (en) * | 2005-12-20 | 2007-02-07 | 中国重型汽车集团有限公司 | Stamping parts tie-in tyre |
| CN201094978Y (en) * | 2007-08-28 | 2008-08-06 | 南京康达机械设备有限公司 | Edge wrapping machine for car door |
-
2009
- 2009-04-16 CN CN2009100493991A patent/CN101530881B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003037541A1 (en) * | 2001-10-31 | 2003-05-08 | Tri Engineering Company Limited | Device and method for hemming processing |
| CN2732384Y (en) * | 2004-09-29 | 2005-10-12 | 中国重型汽车集团有限公司 | Car door edge covering device |
| CN1669694A (en) * | 2005-03-31 | 2005-09-21 | 上海交通大学 | Parallel robot edge-coating system with a rotary table |
| CN2865908Y (en) * | 2005-12-20 | 2007-02-07 | 中国重型汽车集团有限公司 | Stamping parts tie-in tyre |
| CN201094978Y (en) * | 2007-08-28 | 2008-08-06 | 南京康达机械设备有限公司 | Edge wrapping machine for car door |
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| CN101530881A (en) | 2009-09-16 |
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