CN104209406A - Novel automobile beam forming process and stamping die structure - Google Patents
Novel automobile beam forming process and stamping die structure Download PDFInfo
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- CN104209406A CN104209406A CN201310220923.3A CN201310220923A CN104209406A CN 104209406 A CN104209406 A CN 104209406A CN 201310220923 A CN201310220923 A CN 201310220923A CN 104209406 A CN104209406 A CN 104209406A
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Abstract
The invention provides a novel automobile beam forming process and a stamping die structure. The stamping die structure comprises a material pressing core, a material pressing mechanism and a forming and side shaping mechanism. When the stamping die structure works, a workpiece is placed on the material pressing core, the material pressing mechanism makes contact with the workpiece firstly and then presses and fixes the workpiece, and then the forming and side shaping mechanism begins to make contact with the workpiece and works. The forming process includes a blanking procedure, a forming and side shaping procedure and a hole stamping and edge trimming procedure, wherein in the forming and side shaping procedure, wrinkling, cracking, unstability and surface quality of the workpiece are debugged, all profiles are shaped, and resilience of the side wall of the workpiece is controlled; in the hole stamping and edge trimming procedure, hole stamping and edge trimming are carried out on the workpiece. According to the stamping die structure, wrinkles of parts are reduced, resilience of the parts is effectively controlled, beam forming parts do not excessively rely on production equipment any longer, and the production mode that two workpieces can be produced through one die is achieved. By means of the process, an automobile beam can be formed through the three procedures, and production efficiency is improved. The process and the stamping die structure are suitable for production of the automobile beam parts.
Description
Technical field
The present invention relates to Sheet Metal Forming Technology and mould structure, relate in particular to a kind of Novel automotive girder moulding process and punching die structure.
Background technology
For the large beam-like part of automobile, generally can be divided into two types: a kind of for complicated structure, in width, short transverse, all there is drop; Another kind is that structure is relatively simple, substantially there is no the straight beam of drop in width, short transverse, for example crossbeam after the front crossbeam of automobile and automobile.The general process program that we take of automotive frame for the second type is: blanking (plate)-moulding-shaping-punching, totally four procedures complete.This process program is comparatively ubiquitous technical scheme for many years.This kind of process program, in molding procedure, do not taked product and is fixed mechanism due to mould, and material is not secured in a press, and material can flow immediately, and forming process material is not controlled, easily forms wrinkling defect; In trimming, because material is in molding procedure after plastic deformation for the first time, in trimming, will overcome surrender and the stress of plastic deformation for the first time, so the material after shaping all can there be the mass defects such as resilience of appropriate section, be shaped the resilience of part sidewall not controlled; Relatively high to the requirement of forcing press, if appointed condition changes, the aggravation of part unstability, easily produces waste product; Before automobile, after crossbeam and automobile, crossbeam is respectively produced with a production line, shares 6 press and produces, and utilizes equipment many, and production efficiency is low.
Summary of the invention
For above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of Novel automotive girder moulding process and punching die structure, and this punching die structure has reduced the wrinkling of part; Effectively control the resilience of part, reduced waste product; Solve girder forming class part the transition of production equipment has been relied on, promoted qualification rate; Realize the mode of production of two of moulds, utilized equipment few, promoted production efficiency.Adopt the moulding process scheme of this kind of punching die structure, realized three process formed automobile crossbeam, utilize equipment few, promoted production efficiency.
In order to solve the problems of the technologies described above, the invention provides a kind of punching die structure, comprise upper bolster, die shoe, with the fixing material pressing core of described die shoe, the feeding pressure mechanism being connected with described upper bolster, moulding/side the reshaping device being connected respectively with die shoe with described upper bolster, work schedule part is placed on described material pressing core, described upper bolster drives described feeding pressure mechanism and moulding/side reshaping device to move to described die shoe direction, first described feeding pressure mechanism touches described product and is fixed, described upper bolster and moulding/side reshaping device continue motion, then described moulding/side reshaping device is started working.This kind of automobile beam plate moulding mould unites two into one moulding-trimming, with feeding pressure mechanism, is fixed product, utilizes moulding/side reshaping device one time-completion shaping; This punching die structure has reduced the wrinkling of part, has effectively controlled the resilience of part, has reduced waste product, and joint eliminates one step from the process, and has reduced production equipment; Adopt feeding pressure mechanism to be fixed product, solved girder forming class part the transition of production equipment is relied on, product qualified rate is high.
As a further improvement on the present invention, described feeding pressure mechanism comprises guide plate and holding pad lower guide plate on holding pad, nitrogen spring, holding pad; Described nitrogen spring is connected with holding pad with described upper bolster respectively; On described holding pad, guide plate and described upper bolster are fixed, and described holding pad lower guide plate and described holding pad are fixed.The motion of holding pad realizes by the elastic force of nitrogen spring.Adopt nitrogen spring, elastic force pressure is constant, the mould features compact structure, and stamping parts quality is more stable.On holding pad, guide plate and holding pad lower guide plate are for holding pad guiding.
As a further improvement on the present invention, described moulding/side reshaping device comprises that patrix side is wholely tiltedly carved, counterdie side is wholely tiltedly carved, moulding/side dressing blade piece, whole guide plate and the whole guide plate of tiltedly carving of counterdie side tiltedly carved of patrix side; Described moulding/side dressing blade piece and described patrix side be whole tiltedly carves fixingly, and whole tiltedly the carving with described upper bolster of described patrix side is slidably connected, and whole tiltedly the carving with described die shoe of described counterdie side fixed; Described patrix side is whole tiltedly carve guide plate and described patrix side whole tiltedly carve fixing, described counterdie side is whole tiltedly carve guide plate and described counterdie side whole tiltedly carve fixing.Patrix side is whole tiltedly carves guide plate and the whole guide plate of tiltedly carving of counterdie side is tiltedly carved and the whole guiding of tiltedly carving of counterdie side for patrix side is whole.Adopt moulding/side reshaping device, original moulding-trimming is united two into one, two original molds are changed into a mold, effectively control the resilience of part, reduced waste product, saved a procedure, save a mold, reduced production equipment.
As a further improvement on the present invention, this punching die structure also comprises die holder guiding mechanism, and described die holder guiding mechanism comprises patrix guide plate and counterdie guide plate; Described patrix guide plate and described upper bolster are fixed, and described counterdie guide plate and described die shoe are fixed.Patrix guide plate and counterdie guide plate are for upper and lower die holder guiding.
As a further improvement on the present invention, described punching die structure goes out two caves, and the front crossbeam of automobile and rear crossbeam respectively go out a cave.This mould one goes out two caves, and the front crossbeam of automobile and rear crossbeam are produced simultaneously, original front crossbeam and two production lines of rear crossbeam, changes a production line into and produces, and has saved mould, has saved equipment, has saved production cost, has improved production efficiency.
As a further improvement on the present invention, the Novel automotive girder moulding process that the punching die structure described in the above-mentioned any one of a kind of use completes, this technique comprises following operation:
Operation one, blanking operation: product material launches, and draws material original dimension roughly, is controlled in 1 to 5 millimeter, debugs with the original material of this shape, draws product blanking line, discharges blanking stock layout according to shape, produces blanking die;
Operation two, moulding/side trimming: debugging product wrinkle, split, unstable, surface quality; All profile shapings, control the resilience of product sidewall;
Operation three, punching trimming process step: the hole of stamped part and deburring.
By original blanking-moulding-side shaping-punching deburring four procedures, change present blanking-moulding/side shaping-punching deburring three process into, reduced equipment, promoted production efficiency.
As a further improvement on the present invention, in operation two, wrinkling, the cracking method of described debugging product is to adopt feeding pressure mechanism first product to be fixed, and then the shaping of moulding/side.Can effectively control so wrinkling, the cracking of product.
As a further improvement on the present invention, in operation two, the unsettled method of described debugging product is to adopt alignment pin location, in peak position, material pressing core two ends, adds alignment pin.
As a further improvement on the present invention, in operation two, the whole profile shapings of described product, control the resilience of product sidewall, employing be suspention zero degree wedge.
As a further improvement on the present invention, in operation three, punching comprises positive punching and side punching, and deburring is for just repairing.
Compared to prior art, punching die structure of the present invention, unites two into one moulding-trimming, with feeding pressure mechanism, is fixed product, utilizes moulding/side reshaping device one time-completion shaping; This punching die structure has reduced the wrinkling of part, has effectively controlled the resilience of part, has reduced waste product, and joint eliminates one step from the process, and has reduced production equipment; Feeding pressure mechanism is fixed product, has solved girder forming class part the transition of production equipment is relied on, and product qualified rate is high.This punching die structure one goes out two caves, and the front crossbeam of automobile and rear crossbeam are produced simultaneously, original front crossbeam and two production lines of rear crossbeam, changes a production line into and produces, and has saved mould, has saved equipment, has saved production cost, has improved production efficiency.Novel automotive girder moulding process, original blanking-moulding-shaping-punching four procedures are changed into present blanking-moulding/side shaping-punching three process, reduced equipment, saved mould, shortened the adjustment time of changing board mould, save production cost, improved production efficiency.
Accompanying drawing explanation
Fig. 1 is that in the present invention, punching die structure solid is analysed and observe expansion schematic diagram;
Fig. 2 is punching die structure matched moulds state perspective view in the present invention;
Fig. 3 is punching die structure die opening state perspective view in the present invention;
Fig. 4 is the local enlarged diagram of the A-A of punching die structure in the present invention;
Fig. 5 is moulding/side reshaping device matched moulds state perspective view in the present invention;
Fig. 6 is moulding/side reshaping device die opening state perspective view in the present invention;
Fig. 7 is die holder guiding mechanism perspective view in the present invention;
Fig. 8 is feeding pressure mechanism perspective view in the present invention;
Fig. 9 is material removing mechanism perspective view in the present invention;
Figure 10 is upper bolster perspective view in the present invention;
Figure 11 is die shoe perspective view in the present invention;
Figure 12 is the local enlarged diagram of the B-B of punching die structure in the present invention;
Figure 13 is the local enlarged diagram of the C-C of punching die structure in the present invention.
In figure, each component names is as follows:
1--upper bolster
11--rectangle boss
2--die shoe
21--rectangle breach
3--die holder guiding mechanism
31--patrix guide plate
32--counterdie guide plate
4--material pressing core
41--alignment pin
5--feeding pressure mechanism
Guide plate on 51--holding pad
52--holding pad lower guide plate
53--nitrogen spring
54--holding pad
6--moulding/side reshaping device
61--counterdie side is whole tiltedly carves
The whole inclined-plane of 611--downside
62--patrix side is whole tiltedly carves
The whole inclined-plane of 621--upside
63--moulding/side dressing blade piece
The whole guide plate of tiltedly carving of 64--counterdie side
The whole guide plate of tiltedly carving of 65--patrix side
7--buffer unit
71--spring
72--buffer stopper
8--material removing mechanism
81--cylinder
82--material discharging rod
the specific embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Below in conjunction with accompanying drawing, punching die structure of the present invention is described in detail.
As shown in Figure 1, Figure 2 and Figure 3, described punching die structure, it comprises upper bolster 1, die shoe 2, the die holder guiding mechanism 3 being connected respectively with die shoe 2 with described upper bolster 1, the material pressing core 4 that is used for placing product, the material removing mechanism 8 being connected respectively with die shoe 2 with described material pressing core 4, the feeding pressure mechanism 5 being connected with described upper bolster 1, the moulding/side reshaping device 6 being connected respectively with die shoe 2 with described upper bolster 1, and described material pressing core 4 is fixing with described die shoe 2; On material pressing core 4, place the product of moulding automotive frame required size, described upper bolster 1 moves to described die shoe 2 directions by described die holder guiding mechanism 3 under the driving of forcing press, described feeding pressure mechanism 5 exceeds other parts in mould, first touch described product and be fixed, then described upper bolster 1 continues motion, described moulding/side reshaping device 6 starts to contact described product and works until matched moulds completes, after die sinking, material removing mechanism 8 work, take off the part after moulding from material pressing core 4 tops.
As shown in Fig. 1, Fig. 7, Figure 10 and Figure 11, die holder guiding mechanism 3 comprises patrix guide plate 31 and counterdie guide plate 32; Described patrix guide plate 31 and described upper bolster 1 structure that is fixed as one; described counterdie guide plate 32 and described die shoe 2 structure that is fixed as one; patrix guide plate 31 and counterdie guide plate 32, for guiding upper bolster 1 and the smooth matched moulds of die shoe 2 or die sinking, improve the degree of accuracy and the precision of mould matched moulds or die sinking.The positive both sides of upper bolster 1 are respectively provided with a block length square boss 11, rectangle boss 11 and upper bolster 1 structure that is fixed as one, and a long limit of rectangle boss 11 is concordant with a side of upper bolster 1, and rectangle boss 11 is 265mm from the distance in upper bolster 1 front; Square protruding 11 peripheries of every block length are also provided with four patrix guide plates 31, another long side direction of rectangle boss 11 is provided with two patrix guide plates 31, another two short side directions of rectangle boss 11 are respectively provided with the described patrix guide plates 31 of 31, four of patrix guide plates and rectangle boss 11 structure that is fixed as one.Die shoe 2 fronts are provided with the rectangle breach 21 that holds described rectangle boss 11, and the quantity of rectangle breach 21 is two, and die shoe 2 both sides are respectively established one, position and described rectangle boss 11 over against; Rectangle breach 21 long side directions be provided with two with described patrix guide plate 31 positions over against counterdie guide plate 32, rectangle breach 21 short side directions be equipped with one with described patrix guide plate 31 positions over against counterdie guide plate 32, described patrix guide plate 31 forms inserting structure with counterdie guide plate 32, and the gap forming when inserting is between 0.02mm-0.05mm.Described patrix guide plate 31 and counterdie guide plate 32 form inserting structure are provided with to 8 groups altogether.During matched moulds, upper bolster 1 drives patrix guide plate 31 to die shoe 2 and the 32 direction motions of counterdie guide plate, first patrix guide plate 31 forms inserting with counterdie guide plate 32, guarantees diel closing precision and accuracy, and then miscellaneous part is worked until matched moulds completes again; During die sinking in contrast.
As shown in Fig. 1, Fig. 5, Fig. 6 and Fig. 9, described material pressing core 4 use screws and die shoe 2 are fixing, are used for placing the product of moulding automotive frame required size.The interior shape of the imitated automotive frame of material pressing core 4 profiles is similar " protruding " shape with respect to die shoe 2 projections, and both sides are provided with alignment pin 41, and work schedule part is directly placed on material pressing core 4 and by alignment pin 41 and locates.The quantity of this material pressing core 4 can arrange 2 groups as required: before car, crossbeam is one group, and after automobile, crossbeam is one group.Material pressing core 4 is arranged at two whole tiltedly carving between 61 of counterdie side, and material pressing core 4 left and right respectively arrange that counterdie side is whole tiltedly carves 61, and it is separated by a distance between tiltedly carving 61 that two the counterdie sides in material pressing core 4 and left and right are whole; Material pressing core 4 both sides are respectively provided with an alignment pin 41, and alignment pin 41 is fixing by pin-and-hole and material pressing core 4; Material pressing core 4 both sides are respectively provided with a material discharging rod 82, material pressing core 4 is provided with circular hole (not shown), material discharging rod 82 is arranged in described circular hole and can be slidably matched, and topmost face is a little less than material pressing core 4 the top faces for material discharging rod 82, and material discharging rod 82 is screwed and is connected with the piston rod of cylinder 81; Material pressing core 4 use screws and die shoe 2 are fixing, and position is just relative with holding pad 54.
As shown in Fig. 1, Fig. 9, described material removing mechanism 8 comprises and cylinder 81 and material discharging rod 82 that can be flexible under cylinder 81 drives, and the piston rod (not shown) of cylinder 81 is screwed and is connected with material discharging rod 82; Can gas production cylinder 81, also can adopt hydraulic cylinder, preferably adopt single-acting cylinder or single-action hydraulic cylinder, four screws of cylinder 81 and die shoe 2 use are fixedly connected with, material pressing core 4 is provided with circular hole (not shown), material discharging rod 82 is arranged in described circular hole and can be slidably matched, and material discharging rod 82 the top faces are a little less than material pressing core 4 the top faces.After die sinking, cylinder 81 is worked under gas pressure, and piston rod protrudes upward, and drive material discharging rod 82 to protrude upward, thereby the part after the moulding being attached on material pressing core 4 is taken off on top.The quantity of this material removing mechanism 8 can arrange 4 groups: before automobile, crossbeam is two groups, and after automobile, crossbeam is two groups.
As shown in Fig. 1, Fig. 5, Fig. 6 and Fig. 8, described feeding pressure mechanism 5 comprises guide plate 51 and holding pad lower guide plate 52 on holding pad 54, nitrogen spring 53, holding pad; Guide plate 51 and upper bolster 1 structure that is connected to one on holding pad, holding pad lower guide plate 52 and holding pad 54 structure that is connected to one.Holding pad 54 length directions are provided with 6 holding pad lower guide plates 52, and the every side in both sides of holding pad 54 length directions arranges 3, and the dual-side of holding pad 54 is respectively provided with a holding pad lower guide plate 52; On upper bolster 1, be provided with two places for holding the cavity (not shown) of holding pad 54, the position of described cavity is just relative with material pressing core 4, the length direction of described cavity is provided with guide plate 51 on 6 holding pads, the length direction both sides of described cavity are respectively provided with 3, the dual-side of described cavity is respectively provided with guide plate 51 on a holding pad, guide plate 51 and upper bolster 1 52 one-tenth one-to-one relationships of structure and position and holding pad lower guide plate that are connected to one on described 6 holding pads; 52 one-tenth matched in clearance of guide plate 51 and holding pad lower guide plate on described holding pad, fit clearance is between 0.02-0.05mm, when holding pad 54 packs the cavity of upper bolster into, can slide up and down smoothly.On holding pad, guide plate 51 and holding pad lower guide plate 52 be for guiding holding pad 54 to move up and down smoothly, and prevent holding pad 54 skews, improves precision; The shape at the imitated automotive frame profile top, position that holding pad 54 contacts with product, spring preferably adopts nitrogen spring 53, and quantity is 12, on every holding pad 54, arranges 6, on the length direction of holding pad 54, arranges successively, and dredge close centre, two; The cylinder base of nitrogen spring 53 is fixedly connected with the fixed head of upper bolster 1 with screw, and the plunger rod (not shown) of nitrogen spring 53 is screwed and is connected with holding pad 54.During matched moulds, the plunger rod of nitrogen spring 53 is not freely, do not have compressed, the working face of holding pad 54 than patrix side whole tiltedly carve 62 and the working face of moulding/side dressing blade piece 63 all exceed about 20 ~ 50mm left and right; During matched moulds, first the working face of holding pad 54 touches described product and is fixed, then upper bolster continues motion, motionless and the plunger rod of oppressing nitrogen spring 53 of holding pad 54 is toward retraction, the plunger rod of nitrogen spring 53 produces certain pressure and compresses described product, then described upper bolster 1 continues motion, and described moulding/side reshaping device 6 starts to contact described product and works until matched moulds completes.During die sinking, upper bolster 1 drives that patrix side is whole tiltedly carves 62, the cylinder body of nitrogen spring 53 and moulding/side dressing blade piece 63 move upward, when the nitrogen of nitrogen spring 53 is compressed, produce pressure, holding pad 54 is temporarily motionless under the effect of the plunger rod pressure of nitrogen spring 53, the cylinder body of nitrogen spring 53 moves upward and the plunger rod of nitrogen spring 53 is motionless, then die holder 1 drives that patrix side is whole tiltedly carves 62, the cylinder body of nitrogen spring 53 and moulding/side dressing blade piece 63 move upward to a certain extent, the pressure of the compressed generation of nitrogen of nitrogen spring 53 all discharges, the plunger rod of nitrogen spring 53 moves until die sinking completes together with upper bolster 1 with holding pad 54 subsequently.The quantity of this feeding pressure mechanism 5 can arrange 2 groups: before automobile, crossbeam is one group, and after automobile, crossbeam is one group.Nitrogen spring 53 is compared with conventional springs following advantage: (1), in less space, can produce larger initial elastic force pressure, does not need pretension, and power transmission module is as soon as start to contact and just have elastic force pressure with nitrogen spring plunger.A nitrogen spring can replace a plurality of springs, for the identical mould of impulse stroke, adopts the mold height of nitrogen spring little more a lot of than the mold height that adopts spring; (2) elastic force pressure, in whole stroke, can keep constant substantially; (3) according to different cold stamping operation requirements, the size of its elastic force pressure, the position of stress point can regulate at any time, and it is accurate, convenient to regulate, and in Design of Dies and debugging, can easily realize and suppress equilibrium of forces; (4) simplify the structures such as die pressure, discharging, simplify Design of Dies, shorten die manufacturing cycle; (5) improve stamping parts quality, guarantee pressing product steady quality, shorten on forcing press the more mold exchange time, raise labour productivity, reduce costs; (6) long service life, safety, reliable, installation and easy to maintenance, reliable, convenient; (7) be applicable to as the air-cushion device that does not need additionaling power source.
As shown in Fig. 1, Fig. 5, Fig. 6, Figure 12 and Figure 13, described moulding/side reshaping device 6 comprises that patrix side wholely tiltedly carves 62, counterdie side wholely tiltedly carves 61, moulding/side dressing blade piece 63, whole guide plate 65 and the whole guide plate 64 of tiltedly carving of counterdie side tiltedly carved of patrix side; Patrix side is whole tiltedly carves whole 62 the whole inclined-plane 621 of upside tiltedly carved of guide plate 65 use screws and patrix side and is fixedly connected with, counterdie side is whole tiltedly carves whole 61 the whole inclined-plane 611 of downside tiltedly carved of guide plate 64 use screws and counterdie side and is fixedly connected with, patrix side is whole tiltedly carves guide plate 64 and counterdie side is whole tiltedly carves guide plate 65 patrix side is whole tiltedly carves 62 and tiltedly carve 61 directions motions to counterdie side is whole for guiding, and prevents skew; Material pressing core 4 left and right respectively arrange that counterdie side is whole tiltedly carves 61, and it is separated by a distance between tiltedly carving 61 that two the counterdie sides in material pressing core 4 and left and right are whole, and two whole 61 use screws of tiltedly carving of counterdie side are fixedly connected with die shoe 2; Described holding pad 54 each side arranges that patrix side is whole tiltedly carves 62, position just in time with counterdie side whole tiltedly carve 61 relative, patrix side is whole tiltedly carves 2 pull bars of 62 use and upper bolster 1 is slidably connected, patrix side is whole tiltedly carve 62 with upper bolster 1 contact can be along the parallel upper bolster direction segment distance that slides, described holding pad 54 moves up and down with whole 62 the sliding motion tiltedly carved of two of left and right patrix side without interference; The shape of imitated automotive frame profile both sides, the punching press die cavity position of moulding/side dressing blade piece 63, and tiltedly carve 62 and be screwed and be connected with patrix side is whole, or tiltedly carve 62 and be made as integrative-structure with patrix side is whole; Counterdie side is whole tiltedly carves the shape that 61 sides are similar right-angled trapezium, and hypotenuse inwardly, is fixedly connected with die shoe 2 with screw; Whole 62 sides of tiltedly carving of patrix side are the trapezoidal shape of similar chamfer, whole tiltedly to carve 61 hypotenuses relative with counterdie side outwardly for hypotenuse, preferably to be slidably connected with 2 pull bars and upper bolster 1, patrix side is whole tiltedly carve 62 with upper bolster 1 contact can be along the parallel upper bolster direction segment distance that slides.Not during matched moulds, described patrix side is whole tiltedly carve 62 and moulding/side dressing blade piece 63 split in the left and right sides of holding pad 54 and separated by a distance, described product is placed on material pressing core 4, and locates with alignment pin 41, during matched moulds, upper bolster drive patrix side is whole tiltedly carves 62, moulding/side dressing blade piece 63 moves downward together with holding pad 54, while moving to certain distance, while preferably dropping to before the end 110mm, first holding pad 54 touches described product and is fixed, then upper bolster drive patrix side whole tiltedly carve 62 and moulding/side dressing blade piece 63 continue to move downward, moulding starts, upper bolster drives that patrix side is whole tiltedly carves 62 and moulding/side dressing blade piece 63 while continuing to move downward a segment distance, while preferably dropping to before the end 40mm, the whole guide plate 65 of tiltedly carving of patrix side contacts and leads along inclined-plane with the whole guide plate 64 of tiltedly carving of counterdie subsequently, apply side shaping power, patrix side is whole tiltedly carves 62 in the whole direction linear slide of tiltedly carving under guide plate 64 and the whole common side shaping power effect of tiltedly carving guide plate 65 of patrix side to described material pressing core 4 of counterdie, side shaping starts, then upper bolster continues to move downward, progressively unshaped product is on earth applied to side direction shaping power to the complete closure state of mould, product moulding and side shaping process complete.During die sinking in contrast.The quantity of this moulding/side reshaping device 6 can arrange 4 groups: before automobile, crossbeam is two groups, and after automobile, crossbeam is two groups.
As shown in Figure 1, Figure 3, described punching die structure, a mould is done two caves, and the front crossbeam of automobile and rear crossbeam are respectively done a cave, produce simultaneously.The front crossbeam of automobile originally and rear crossbeam are respectively with a production line, and different moulds, changes a production line sharing die now into, has saved equipment, has reduced mould, realizes the mode of production of two of moulds, has greatly promoted production efficiency.
As Figure 1 and Figure 4, described upper bolster is also provided with buffer unit 7, and this buffer unit 7 comprises spring 71 and buffer stopper 72; Described buffer stopper 72 is block part, and is fixedly connected with described upper bolster 1 with screw; Described spring 71 tiltedly carves 62 and be installed on described buffer stopper 72 over against described patrix side is whole, and spring 71 one end are fixedly connected with buffer stopper 72, and the other end is free end.This buffer unit 7 prevents patrix side, and whole tiltedly to carve 62 drawback movements too fast, reduces impulsive force, anticollision.The quantity of this buffer unit 7 can arrange 8 groups: before automobile, crossbeam is 4 groups, and after automobile, crossbeam is 4 groups.
The crossbeam before automobile of take is example, the Novel automotive girder moulding process that the present invention completes with punching die structure described above, and it comprises following operation:
Operation one, blanking operation: product material launches, and draws material original dimension roughly, is controlled in 1 to 5 millimeter, debugs with the original material of this shape, draws product blanking line, discharges blanking stock layout according to shape, produces blanking die.After the trimming line of product is determined by die trial, rationally stock layout is to save material.
Operation two, moulding/side trimming: debugging product wrinkle, split, unstable, surface quality; All profile shapings, control the resilience of product sidewall.As shown in Figure 1, the three-dimensional sectional stretch-out view of mould structure using in moulding process of the present invention.This mould structure comprises that upper bolster 1, die shoe 2, nitrogen spring 53, holding pad 54, material pressing core 4, patrix side wholely tiltedly carve 62, counterdie side wholely tiltedly carves 61, moulding/side dressing blade piece 63 etc.; Nitrogen spring 53, holding pad 54, patrix side be whole tiltedly carve 62 and moulding/side dressing blade piece 63 be arranged on upper bolster 1, material pressing core 4 and counterdie side be whole tiltedly carves 61 and is arranged on die shoe 2.Mould is when lathe open position, when initial, patrix side is whole tiltedly carves 62 and moulding/side dressing blade piece 63 and holding pad 4 segment distance of being separated by, holding pad 54 exceeds that patrix side is whole tiltedly carves 62 and moulding/side dressing blade piece 63 1 segment distances (being approximately 20 ~ 50mm), product is placed on material pressing core 4 and with alignment pin 41 and fixes, during matched moulds, upper bolster 2 moves downward, first holding pad 54 touches product, holding pad 54 starts binder in the position of front 110 millimeter on earth, upper bolster 1 is intermittently descending, product is in the situation that holding pad 54 is fixed, the work of forming cutter BOB(beginning of block), forming process starts, the forming process of product is in slave mode, product wrinkling, cracking, unstable quilt is effectively contained.Upper bolster 1 is when continuing to come downwards on earth front 40 millimeter, and patrix side is whole tiltedly carves 62 and start working, and progressively to not being molded into the product at the end, to apply side direction shaping power completely closed to mould, and product moulding and side shaping process complete.Due to the side shaping that product carries out under unshaped state on earth, therefore avoided the secondary plastic deformation of product, thereby effectively contained the sidewall resilience of material.Wrinkling, the cracking of part while adopting the form of nitrogen spring 53 auxiliary holding pads 54 can solve well automotive frame class forming parts, the problem such as unstable, can reach optimum efficiency by adjusting the stroke of holding pad 54 aborning.The whole mode of tiltedly carving 62 employing zero degree suspentions of patrix side, can slide along upper bolster, and taking and placing part is convenient, easily debugging.
Operation three, punching trimming process step: the hole of stamped part and deburring.Positive punching and side punching complete in same operation, guarantee tolerance and the position degree in hole, and the limit of having relatively high expectations is adopted to refine, guarantee that product is qualified in the margin of tolerance.
Two products are crossbeam after the front crossbeam of automobile and automobile, and structural difference is little, and just shape has a difference, and before automobile, after crossbeam and automobile, crossbeam is both suitable for the manufacture of this technique.What originally adopt is front crossbeam and two production lines of rear crossbeam, and process program is: blanking (plate)-moulding-shaping-punching, and totally four procedures complete, and this process program is comparatively ubiquitous technical scheme for many years.The key that changes this process program is the improvement of diel.Through long die improvement, product testing, now moulding-trimming can be merged into a procedure: moulding/side trimming, mould structure changes one into and goes out two caves, the front crossbeam of automobile and rear crossbeam respectively go out a cave, original front crossbeam and two production lines of rear crossbeam, change a production line into and produce.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a punching die structure, comprise upper bolster (1), die shoe (2), with the fixing material pressing core (4) of described die shoe (2), it is characterized in that: also comprise the feeding pressure mechanism (5) being connected with described upper bolster (1), moulding/side the reshaping device (6) being connected respectively with die shoe (2) with described upper bolster (1), work schedule part is placed on described material pressing core (4), described upper bolster (1) drives described feeding pressure mechanism (5) and moulding/side reshaping device (6) to move to described die shoe (2) direction, described feeding pressure mechanism (5) first touches described product and is fixed, described upper bolster (1) and moulding/side reshaping device (6) continue motion, then described moulding/side reshaping device (6) is started working.
2. punching die structure according to claim 1, is characterized in that: described feeding pressure mechanism (5) comprises guide plate (51) and holding pad lower guide plate (52) on holding pad (54), nitrogen spring (53), holding pad; Described nitrogen spring (53) is connected with holding pad (54) with described upper bolster (1) respectively; Guide plate on described holding pad (51) is fixing with described upper bolster (1), and described holding pad lower guide plate (52) is fixing with described holding pad (54).
3. punching die structure according to claim 1, is characterized in that: described moulding/side reshaping device (6) comprises that patrix side is whole tiltedly carves (62), counterdie side is whole tiltedly carves (61), moulding/side dressing blade piece (63), whole guide plate (65) and the whole guide plate (64) of tiltedly carving of counterdie side tiltedly carved of patrix side; Described moulding/side dressing blade piece (63) is fixing with whole tiltedly carve (62) of described patrix side, whole tiltedly carve (62) of described patrix side are slidably connected with described upper bolster (1), and whole tiltedly carve (61) of described counterdie side are fixing with described die shoe (2); The whole guide plate (65) of tiltedly carving of described patrix side is fixed with whole tiltedly carve (62) of described patrix side, and the whole guide plate (64) of tiltedly carving of described counterdie side is fixed with whole tiltedly carve (61) of described counterdie side.
4. according to the punching die structure described in claims 1 to 3 any one, it is characterized in that: this mould structure also comprises die holder guiding mechanism (3), described die holder guiding mechanism (3) comprises patrix guide plate (31) and counterdie guide plate (32); Described patrix guide plate (31) is fixing with described upper bolster (1), and described counterdie guide plate (32) is fixing with described die shoe (2).
5. according to the punching die structure described in claims 1 to 3 any one, it is characterized in that: described punching die structure goes out two caves, the front crossbeam of automobile and rear crossbeam respectively go out a cave.
6. the Novel automotive girder moulding process completing with the punching die structure described in claim 1 to 5 any one, comprises following operation:
Operation one, blanking operation: product material launches, and draws material original dimension roughly, is controlled in 1 to 5 millimeter, debugs with the original material of this shape, draws product blanking line, discharges blanking stock layout according to shape, produces blanking die;
Operation two, moulding/side trimming: debugging product wrinkle, split, unstable, surface quality; All profile shapings, control the resilience of product sidewall;
Operation three, punching trimming process step: the hole of stamped part and deburring.
7. Novel automotive girder moulding process according to claim 6, is characterized in that: in operation two, wrinkling, the cracking method of described debugging product is to adopt feeding pressure mechanism (5) first product to be fixed, and then the shaping of moulding/side.
8. Novel automotive girder moulding process according to claim 6, is characterized in that: in operation two, the unsettled method of described debugging product is to adopt alignment pin (41) location, in peak position, material pressing core two ends, adds alignment pin (41).
9. Novel automotive girder moulding process according to claim 6, is characterized in that: in operation two, the whole profile shapings of described product, control the resilience of product sidewall, employing be suspention zero degree wedge.
10. Novel automotive girder moulding process according to claim 6, is characterized in that: in operation three, punching comprises positive punching and side punching, and deburring is for just repairing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310220923.3A CN104209406A (en) | 2013-06-05 | 2013-06-05 | Novel automobile beam forming process and stamping die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310220923.3A CN104209406A (en) | 2013-06-05 | 2013-06-05 | Novel automobile beam forming process and stamping die structure |
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| Publication Number | Publication Date |
|---|---|
| CN104209406A true CN104209406A (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310220923.3A Pending CN104209406A (en) | 2013-06-05 | 2013-06-05 | Novel automobile beam forming process and stamping die structure |
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| CN (1) | CN104209406A (en) |
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| CN105880372A (en) * | 2016-05-05 | 2016-08-24 | 安徽江淮汽车股份有限公司 | Inclined wedge mechanism with lateral material pressing function |
| CN106270006A (en) * | 2016-08-10 | 2017-01-04 | 上海实树汽车工程技术有限公司 | For manufacturing experimently the frock of automobile side shaping |
| CN107234174A (en) * | 2017-06-29 | 2017-10-10 | 奇瑞汽车股份有限公司 | The forming process of automobile longitudinal girder |
| CN107597975A (en) * | 2017-09-22 | 2018-01-19 | 安徽江淮汽车集团股份有限公司 | Plate forming mold in automobile tail gate |
| CN109079050A (en) * | 2018-09-28 | 2018-12-25 | 安徽江淮汽车集团股份有限公司 | A kind of truck girder forming die automation positioning system structure |
| CN109807215A (en) * | 2019-03-07 | 2019-05-28 | 天津希利汽车部品有限公司 | A kind of stamping equipment of panoramic skylight crossbeam mold |
| CN111203478A (en) * | 2018-11-22 | 2020-05-29 | 浙江舜仕汽车技术有限公司 | Blanking and shaping die for automobile A-pillar sheet metal part |
| CN111842763A (en) * | 2020-07-28 | 2020-10-30 | 湖北大成名匠锻造科技有限公司 | Aluminum alloy forging heating heat preservation die holder |
| CN112642940A (en) * | 2020-12-24 | 2021-04-13 | 航天海鹰(哈尔滨)钛业有限公司 | Sheet metal part forming die with guide structure and automatic alignment method thereof |
| CN113385582A (en) * | 2021-06-11 | 2021-09-14 | 鹤壁天淇汽车模具有限公司 | Multi-range automobile panel die trimming device |
| CN114011972A (en) * | 2021-10-27 | 2022-02-08 | 苏州金鸿顺汽车部件股份有限公司 | Punch forming die for side beam of automobile front floor |
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| CN105880372A (en) * | 2016-05-05 | 2016-08-24 | 安徽江淮汽车股份有限公司 | Inclined wedge mechanism with lateral material pressing function |
| CN106270006A (en) * | 2016-08-10 | 2017-01-04 | 上海实树汽车工程技术有限公司 | For manufacturing experimently the frock of automobile side shaping |
| CN106270006B (en) * | 2016-08-10 | 2018-08-14 | 上海实树汽车工程技术有限公司 | Tooling for manufacturing experimently automobile side shaping |
| CN107234174A (en) * | 2017-06-29 | 2017-10-10 | 奇瑞汽车股份有限公司 | The forming process of automobile longitudinal girder |
| CN107597975A (en) * | 2017-09-22 | 2018-01-19 | 安徽江淮汽车集团股份有限公司 | Plate forming mold in automobile tail gate |
| CN109079050B (en) * | 2018-09-28 | 2019-10-25 | 安徽江淮汽车集团股份有限公司 | A kind of truck girder forming die automation positioning system structure |
| CN109079050A (en) * | 2018-09-28 | 2018-12-25 | 安徽江淮汽车集团股份有限公司 | A kind of truck girder forming die automation positioning system structure |
| CN111203478A (en) * | 2018-11-22 | 2020-05-29 | 浙江舜仕汽车技术有限公司 | Blanking and shaping die for automobile A-pillar sheet metal part |
| CN111203478B (en) * | 2018-11-22 | 2024-04-30 | 浙江舜仕汽车技术有限公司 | Blanking and shaping die for automobile A column sheet metal part |
| CN109807215A (en) * | 2019-03-07 | 2019-05-28 | 天津希利汽车部品有限公司 | A kind of stamping equipment of panoramic skylight crossbeam mold |
| CN111842763A (en) * | 2020-07-28 | 2020-10-30 | 湖北大成名匠锻造科技有限公司 | Aluminum alloy forging heating heat preservation die holder |
| CN112642940A (en) * | 2020-12-24 | 2021-04-13 | 航天海鹰(哈尔滨)钛业有限公司 | Sheet metal part forming die with guide structure and automatic alignment method thereof |
| CN113385582A (en) * | 2021-06-11 | 2021-09-14 | 鹤壁天淇汽车模具有限公司 | Multi-range automobile panel die trimming device |
| CN113385582B (en) * | 2021-06-11 | 2022-08-30 | 鹤壁天淇汽车模具有限公司 | Multi-range automobile panel die trimming device |
| CN114011972A (en) * | 2021-10-27 | 2022-02-08 | 苏州金鸿顺汽车部件股份有限公司 | Punch forming die for side beam of automobile front floor |
| CN114733973A (en) * | 2022-04-06 | 2022-07-12 | 无锡曙光精密工业有限公司 | Processing technology and processing die for automobile armrest frame |
| CN114733973B (en) * | 2022-04-06 | 2023-08-04 | 无锡曙光精密工业有限公司 | Processing technology and processing die for automobile armrest frame |
| CN115229047A (en) * | 2022-07-21 | 2022-10-25 | 上汽通用五菱汽车股份有限公司 | Rear wheel cover inner plate stamping method |
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Application publication date: 20141217 |
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