CN103302496A - Upsetting formed automobile framework piece progressive die and using method thereof - Google Patents
Upsetting formed automobile framework piece progressive die and using method thereof Download PDFInfo
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- CN103302496A CN103302496A CN2013102236809A CN201310223680A CN103302496A CN 103302496 A CN103302496 A CN 103302496A CN 2013102236809 A CN2013102236809 A CN 2013102236809A CN 201310223680 A CN201310223680 A CN 201310223680A CN 103302496 A CN103302496 A CN 103302496A
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Abstract
The invention relates to an automobile die, in particular to an upsetting formed automobile framework piece progressive die and the using method thereof. The structure of the progressive die enables a panel veneer to form a required automobile framework piece, the process totally comprises nine times of drawing, two times of edge cutting, three times of shaping (upsetting), two times of bending as well as final punching, edge cutting and waste material cutting; the two times of edge cutting are respectively combined with the seventh drawing and the eighth drawing in the nine times of drawing to be one procedure, independent edge cutting is not performed, two times of bending are respectively combined with the front two times of shaping in the three times of shaping into one procedure, and independent bending is not performed. The die and the method have the advantages that the complexity of the die is simplified so as to improve the production efficiency of the automobile framework piece; the problem of incapability of tapping on the outer side of the drawing end part of a thin plate drawing piece is solved; further, the possibility of cracking of a middle panel veneer during the shaping (upsetting) process is further lowered; and the replacement efficiency of a damaged female die is reduced during the drawing and shaping (upsetting) process.
Description
Technical field
Patent of the present invention relates to automobile skeleton progressive die, belongs to the automobile die technical field.
Background technology
Multi-station progressive die is a kind of high accuracy, high efficiency, the long-life mould that grows up on the basis of regular grade progressive die, is the important representative of technology-intensive mould, is one of punch die developing direction; This mould also can be finished beading according to characteristics and the shaping properties of design of part, towards forming processes such as nest, bending, pull and stretch except carrying out punching and blanking work, even can also finish assembly process in mould; During pressure, will be with material or after billot sent to by the die entrance end, under the condition of strictness control stepping accuracy, order according to the forming technology arrangement, by the continuous punching press of each station, in the end station is through stamping-out or after cutting off, but just punching out goes out to meet the stamping parts of product requirement; Be to guarantee the operate as normal of multi-station progressive die, mould must have high-precision guiding and spacing system accurately, is equipped with self-feeding, goes out devices such as part, safety detection automatically.
Yet in the existing progressive die, the material of product thick with just expect thick identical, in subsequent treatment, if initial sheet thickness does not satisfy the condition of tapping, then need to weld boss tapping again, thereby both increased cost of goods manufactured, and the product accuracy of manufacture and quality reduction; Die adopts monolithic construction, if any damage, then needs integral replacing; When carrying out punching, directly plate is carried out punching.
This patent increases sheet thickness by the method for shaping (it is thick to upset), then can directly attack internal thread, and bottom and the sidewall corner of product become the right angle from fillet, and the internal thread that processes has higher quality; The die of pull and stretch and shaping (it is thick to upset) technology adopts the bottom to go into the structure of son and the cooperation of outer cover piece, when damaging, only needs to change the part of damage; Before punching, earlier by the bottom attenuation of shaping with product, punching is more prone to and more all even rigidity raisings of sidewall thickness.
Summary of the invention
The invention provides a kind of automobile skeleton progressive die and using method defective and the problem that solves existing progressive die and method thereof of the thick shaping of upsetting.
Progressive die of the present invention makes the operation of sheet forming comprise nine pull and stretch, twice side cut, three shapings (it is thick to upset), twice bending and last punching, cut edge, cut waste material; Wherein with twice side cut respectively with nine pull and stretch in the 7th order be incorporated on the procedure for eight times, do not cut edge separately, twice bending also respectively with three shapings (it is thick to upset) in be incorporated on the procedure for preceding twice, do not carry out bending separately;
Three shapings (it is thick to upset) process is: in the progressive die drawing sequence in front with the excessive pull and stretch of plate, again by dwindling die die orifice size and shortening drawing depth, make the thickness of the drawing and forming sidewall of product increase to 2.6mm by 2.0mm, then can directly attack internal thread, no longer need to weld boss tapping again;
In order to guarantee that the process of sheet forming part is not broken in shaping (it the is thick to upset) process, in the design of shaping (it is thick to upset) die, die hole sidewall design is the gradient of oval arc, when carrying out shaping (it is thick to upset), the process of sheet forming part is advanced in the sidewall of the oval arc gradient of die in shaping (it is thick to upset) punch-die closure, play the effect of its pre-mated, the plate that is conducive to the drawing and forming partial sidewall flows, and reduces the break possibility of plate in shaping (it is thick to upset) process.
Because the production in enormous quantities of workpiece, progressive die need be used by high-frequency ground, damage in this high-frequency is used in order to reduce the progressive die die, thereby cause economic loss, die adopts the bottom to go into the structure that son matches with the outer cover piece, when the die inefficacy needs to change, can go into the concrete condition of son and outer cover piece according to the bottom, selection is changed.
When punching was carried out in product drawing and forming bottom, shaping for the third time (it is thick to upset) made the attenuation of product bottom thickness, and sidewall thickness more all even rigidity improves, and bottom and the sidewall corner of product becomes the right angle from fillet after the shaping, is conducive to attack internal thread.
The invention has the advantages that: 1) this progressive die has improved the production efficiency of sheet forming automobile skeleton; 2) product that passes through the thick processing of rammer can save a lot of extra processing and handle in follow-up processing, has simplified production process; 3) the die structure of son and outer cover piece is gone in the bottom, has reduced the progressive die die and damage the economic loss that causes in high-frequency is used; 4) shaping (it is thick to upset) die sidewall design growth circular arc gradient has reduced the possibility that plate breaks; 5) shaping for the third time (it is thick to upset) makes the attenuation of product bottom thickness, and sidewall thickness more all even rigidity improves, and bottom and the sidewall corner of product becomes the right angle from fillet after the shaping, is conducive to attack internal thread.
Description of drawings
Fig. 1 is the progressive die installation diagram;
Fig. 2 is the stock layout figure of automobile skeleton;
Fig. 3 is that sub-two-dimensional representation and three-dimensional assembling schematic diagram are gone in outer cover piece and the bottom of die;
Fig. 4 is that shaping (it is thick to upset) punch die cooperates figure;
Fig. 5 is the product schematic diagram;
In the accompanying drawing: the 1-die shoe; 2-stock guide cushion block; The 5-stock guide; The 3-lower bolster; The 4-lower bolster; The 6-stripper; 7-discharging backboard; The 8-cope match-plate pattern; The 9-upper padding plate; The 10-upper bolster; 11-square-section spring; 12-bullport punch; 13-is towards the waste material punch; The 14-first blanking profile punch; The 15-second blanking profile punch; 16-is the pull and stretch punch for the first time; The 17-hexagon socket cap head screw; 18-is the pull and stretch punch for the second time; 19-is the pull and stretch punch for the third time; The 4th pull and stretch punch of 20-; The 5th pull and stretch punch of 21-; The 6th pull and stretch punch of 22-; The 7th pull and stretch punch of 23-; 24-side cut punch; The 8th pull and stretch punch of 25-; 26-side cut punch; The 9th pull and stretch punch of 27-; 28-45 ° of bending punch; 29-shaping (it is thick to upset) for the first time punch; 30-45 ° of bending punch; 31-90 ° of bending punch; 32-shaping (it is thick to upset) for the second time punch; 33-90 ° of bending punch; The 34-set screw; 35-punch spring; The contour sleeve of 36-; The 37-hexagon socket cap head screw; 38-shaping for the third time (it is thick to upset) punch; The 39-piercing punch; 40-side cut punch; The 41-hexagon socket cap head screw; 42-cuts the waste material punch; The 43-dowel pin; 44-liftout floating block; 45-liftout spring; 46-shaping for the third time (it is thick to upset) die; 47-90 ° of bending die; 48-shaping (it is thick to upset) for the second time die; 49-45 ° of bending die; 50-shaping (it is thick to upset) for the first time die; The 9th pull and stretch die of 51-; The 8th pull and stretch die of 52-; The 7th pull and stretch die of 53-; The 6th pull and stretch die of 54-; The 5th pull and stretch die of 55-; The 4th pull and stretch die of 56-; 57-is the pull and stretch die for the third time; 58-is the pull and stretch die for the second time; 59-die spring; 60-is the pull and stretch die for the first time; The 61-pilot pin; 62-guide spring; 63-guide pin; 64-liftout spring; The 65-jigger pin; The 66-dowel pin.
The specific embodiment
As shown in Figure 1, the critical piece of patent automobile skeleton progressive die of the present invention comprises: upper die component and following membrane module, and wherein upper die component comprises stripper 6, discharging backboard 7, cope match-plate pattern 8, upper padding plate 9, upper bolster 10, square-section spring 11, bullport punch 12, towards waste material punch 13, the first blanking profile punch 14, the second blanking profile punch 15, nine pull and stretch punch 16 of corresponding nine pull and stretch, 18,19,20,21,22,23,25,27, hexagon socket cap head screw 17, hexagon socket cap head screw 37, three side cut punch 24 of corresponding three side cuts, 26,40, the bending punch 28 of corresponding 45 ° of bendings, 30, the bending punch 31 of corresponding 90 ° of bendings, 33, three shapings (it is thick to upset) punch 29 of corresponding three shapings (it is thick to upset), 32,38, set screw 34, punch spring 35, contour sleeve 36, piercing punch 39, cut waste material punch 42, dowel pin 43, pilot pin 61; Following membrane module comprises die shoe 1, stock guide backing plate 2, stock guide 5, lower bolster 3, lower bolster 4, liftout floating block 44, liftout spring 45, liftout spring 64, three shapings (it is thick to upset) die 46 of corresponding three shapings (it is thick to upset), 48,50, the bending die 49 of corresponding 45 ° of bendings, the bending die 47 of corresponding 90 ° of bendings, nine pull and stretch dies 51 of corresponding nine pull and stretch, 52,53,54,55,56,57,58,60, die spring 59, guide spring 62, guide pin 63, jigger pin 65.
The installation method of upper die component is: the bottom that cope match-plate pattern 8 and upper padding plate 9 is fixed on upper bolster 10, stripper 6 and discharging backboard 7 are fixed on the upper bolster 10 with square-section spring 11, be positioned at the upper padding plate bottom, bullport punch 12, towards waste material punch 13, blanking profile punch 14, blanking profile punch 15, nine pull and stretch punch 16,18,19,20,21,22,23,25,27, side cut punch 24, side cut punch 26, side cut punch 40, bending punch 28, bending punch 30, bending punch 31, bending punch 33, shaping (it is thick to upset) punch 29, shaping (it is thick to upset) punch 32, shaping (it is thick to upset) punch 38, piercing punch 39, cut waste material punch 42 and punch spring 35, contour sleeve 36 is fixed on the bottom of upper bolster 10; The installation method of following membrane module is: the top that stock guide backing plate 2 and stock guide 5 is fixed on die shoe 1, lower bolster 3 and lower bolster 4 are fixed on the edge of die shoe 1, liftout floating block 44 and liftout spring 45 are fixed on the lower bolster 4, shaping (it is thick to upset) die 46, shaping (it is thick to upset) die 48, shaping (it is thick to upset) die 50, bending die 47, bending die 49, pull and stretch die 51,52,53,54,55,56,57,58,60 and die spring 59 be fixed on the lower bolster 4, guide pin 63 and guide spring 62 are fixed on the die shoe 1.
By Fig. 1 and Fig. 2 as can be known, the using method of mould is:
1, plate is put into the groove of guide pin 63, carried out Primary Location; Bullport punch 12 is towards the correcting pin-and-hole, and pilot pin 61 accurate control feeding step pitches are accurately located.
2, plate is pushed ahead, 13 pairs of plates of progressive die otch punch carry out otch, cut 14,15 pairs of plates of waste material shape punch and cut the waste material shape, and this two step is for the structure of last side cut punch 40 is simpler, is easier to operation.
3, plate is pushed ahead in continuation, nine pull and stretch punch 16 of progressive die, 18,19,20,21,22,23,25,27 and nine pull and stretch dies 51,52,53,54,55,56,57,58,60 pairs of plates carry out pull and stretch nine times, in the 7th time and the 8th time of these nine pull and stretch, the 7th pull and stretch punch 23 just, the 7th pull and stretch die 53 and the 8th pull and stretch punch 25, during the 8th pull and stretch die 52 work, two side cut punch 24 of progressive die, 26 pairs of plates are cut edge simultaneously, namely the 7th pull and stretch carries out with station with cutting edge for the first time, and the 8th time pull and stretch carries out with station with side cut for the second time; Pull and stretch punch 16,18,19,20,21,22,23,25,27 and stripper 6 descending, contact earlier with plate, stripper 6 plays blank holder and pushes down plate, it is up after upper die component is finished the work, spring 11 pairs of strippers 6 in square-section have active force, make stripper 6 dischargings, simultaneously liftout spring 45,64 and liftout floating block 44, jigger pin 65 and die spring 59 eject die with plate; 34 position-limiting actions of set screw.
4, plate is after pull and stretch is cut edge, and plate continues to push ahead, three shapings of progressive die (it is thick to upset) punch 29,32,38 under the guiding of contour sleeve 36 is protected and three whole (it is thick to upset) dies 46,48,50 pairs of plates carry out shaping (it is thick to upset); Stripper 6 contacts with plate earlier, drawing and forming partly is pressed in shaping (it is thick to upset) die 46,48,50 the sidewall length circular arc gradient, as shown in Figure 3, then shaping (it is thick to upset) punch 29,32,38 continues descending, cooperate with shaping (it is thick to upset) die 46,48,50, make sheet metal deformation, the diameter of drawing and forming part diminishes, contraction in length, the thickness thickening; Meanwhile, the bending punch 28 of progressive die, 30 bending dies 49 cooperate, with plate both sides elder generations bending to 45 °, the bending punch 31 of progressive die, 33 cooperates with bending die 47, with the bending to 90 ° again of plate both sides, wherein shaping for the third time (it is thick to upset) makes the attenuation of product bottom thickness, and sidewall thickness more all even rigidity improves, and the bottom of product and sidewall corner become the right angle from fillet after the shaping, as shown in Figure 4.
5, plate continues to push ahead, progressive die piercing punch 39, side cut punch 40 and cut 42 pairs of plates of waste material punch and carry out punching, cut edge and cut waste material; Piercing punch 39 is in process of sheet forming bottom punching; Side cut punch 40 according to cutting the waste material shape cut-out that waste material shape punch 14,15 cuts out, is cut plate then waste material punch 42 remaining waste material is cut off again.
6, patrix is up, and compressed spring recovers gradually, and stripper 6, jigger pin 65 and guide pin 63 return to initial position, obtain the product that is shaped, as shown in Figure 5.
Claims (6)
1. the automobile skeleton progressive die of thick shaping of upsetting comprises upper die component and following membrane module, it is characterized in that:
Described upper die component comprises stripper, the discharging backboard, cope match-plate pattern, upper padding plate, upper bolster, the square-section spring, the bullport punch, towards the waste material punch, two blanking profile punch, nine pull and stretch punch of corresponding nine pull and stretch, three side cut punch of corresponding three side cuts, two bending punch of corresponding 45 ° of bendings, two bending punch of corresponding 90 ° of bendings, three shapings (it is thick to upset) punch of corresponding three shapings (it is thick to upset), set screw, the punch spring, contour sleeve, piercing punch, cut the waste material punch, dowel pin, pilot pin;
Following membrane module comprises die shoe, stock guide cushion block, stock guide, lower bolster, lower bolster, liftout floating block, two liftout springs, three shapings (it is thick to upset) die of corresponding three shapings (it is thick to upset), the bending die of corresponding 45 ° of bendings, the bending die of 90 ° of bendings of correspondence, nine pull and stretch dies, die spring, guide spring, guide pin, the jigger pin of nine pull and stretch of correspondence;
The installation method of upper die component is: cope match-plate pattern and upper padding plate are fixed on the bottom of upper bolster, and stripper and discharging backboard and square-section spring are fixed on the upper bolster, are positioned at the upper padding plate bottom; The bullport punch, towards three shapings (it is thick to upset) punch, the piercing punch of two bending punch of waste material punch, two blanking profile punch, nine pull and stretch punch, three side cut punch, two bending punch of corresponding 45 ° of bendings, corresponding 90 ° of bendings, corresponding three shapings (it is thick to upset), cut the bottom that waste material punch and punch spring, contour sleeve are fixed on upper bolster;
The installation method of following membrane module is: the top that stock guide cushion block and stock guide is fixed on die shoe, lower bolster and lower bolster are fixed on the edge of die shoe, liftout floating block and liftout spring are fixed on the lower bolster, nine pull and stretch dies and the die spring of the bending die of the bending die of three shapings (it is thick to upset) die of corresponding three shapings (it is thick to upset), corresponding 45 ° of bendings, 90 ° of bendings of correspondence, nine pull and stretch of correspondence are fixed on the lower bolster, and guide pin and guide spring are fixed on the die shoe.
2. the automobile skeleton progressive die of a kind of thick shaping of upsetting as claimed in claim 1, it is characterized in that: the die of pull and stretch and shaping (it is thick to upset) technology adopts the bottom to go into the structure that son matches with the outer cover piece, go into concrete failure conditions sub and the outer cover piece according to the bottom, select to change; The die hole sidewall of shaping (it is thick to upset) technology is the gradient of oval arc, the process of sheet forming part is advanced in the sidewall of the oval arc gradient of die in shaping (it is thick to upset) punch-die closure, play the effect of its pre-mated, the plate that is conducive to the drawing and forming partial sidewall flows, and reduces the break possibility of plate in shaping (it is thick to upset) process.
3. the using method of the automobile skeleton progressive die of a kind of thick shaping of upsetting as claimed in claim 1 is characterized in that: use the be shaped process of required automobile skeleton of progressive die to comprise nine pull and stretch, twice side cut, three shapings (it is thick to upset), twice bending and last punching altogether, cut edge and cut waste material; Twice side cut respectively with nine pull and stretch in the 7th order be incorporated on the procedure for eight times, do not cut edge separately, twice bending also respectively with three shapings in be incorporated on the procedure for preceding twice, do not carry out bending separately.
4. the using method of the automobile skeleton progressive die of a kind of thick shaping of upsetting as claimed in claim 3, it is characterized in that: for the material that obtains product drawing and forming sidewall thick in the plate original depth, progressive die to plate earlier excessively pull and stretch to 16mm, by three shapings (it is thick to upset) drawing depth is foreshortened to 13mm successively by 16mm then, 11.5mm, 10.5mm, die die orifice size is contracted to 10.5mm by 11.5mm, thereby the thickness of product drawing and forming sidewall is thickened to 2.3mm successively by 2.0mm, 2.5mm, 2.6mm, after sheet thickness increases to 2.6mm, can directly attack internal thread, no longer need to weld boss tapping again.
5. the using method of the automobile skeleton progressive die of a kind of thick shaping of upsetting as claimed in claim 3, it is characterized in that: when shaping for the third time, by the product bottom thickness is thinned to 1.5mm by 2.5mm next step punching is more prone to, make more all even rigidity raisings of sidewall thickness, and the bottom of product and sidewall corner become the right angle from fillet after the shaping, are conducive to attack internal thread.
6. the using method of the automobile skeleton progressive die of a kind of thick shaping of upsetting as claimed in claim 3 is characterized in that comprising the steps:
(1) plate is put into the groove of guide pin, carried out Primary Location; The bullport punch is towards the correcting pin-and-hole, and the accurate control of pilot pin feeding step pitch is accurately located;
(2) plate is pushed ahead, towards the waste material punch plate is carried out otch, the first blanking profile punch and the second blanking profile punch are cut the waste material shape to plate;
(3) continue plate is pushed ahead, nine pull and stretch punch and nine pull and stretch dies of progressive die carry out pull and stretch nine times to plate; In the 7th time and the 8th time of these nine pull and stretch, during the 7th pull and stretch punch, the 7th pull and stretch die and the 8th pull and stretch punch, the 8th pull and stretch die work just, two side cut punch of progressive die are cut edge simultaneously to plate, namely the 7th pull and stretch carries out with station with cutting edge for the first time, and the 8th time pull and stretch carries out with station with side cut for the second time; Nine pull and stretch punch and stripper are descending, contact earlier with plate, stripper plays blank holder and pushes down plate, it is up after upper die component is finished the work, the square-section spring has active force to stripper, make the stripper discharging, liftout spring and liftout floating block, jigger pin and die spring eject die with plate simultaneously; Set screw plays position-limiting action;
(4) plate is after pull and stretch is cut edge, and plate continues to push ahead, and three shapings of progressive die (it is thick to upset) punch carries out shaping (it is thick to upset) with three whole (it is thick to upset) dies to plate under the guiding protection of contour sleeve 36; Stripper contacts with plate earlier, drawing and forming partly is pressed in the sidewall length circular arc gradient of shaping (it is thick to upset) die, and then shaping (it is thick to upset) punch continues descending, cooperate with shaping (it is thick to upset) die, make sheet metal deformation, the diameter of drawing and forming part diminishes, contraction in length, the thickness thickening; Meanwhile, two bending punch of 45 ° of bendings of correspondence of progressive die cooperate with 45 ° of bending dies, with plate both sides elder generations bending to 45 °, two bending punch of 90 ° of bendings of correspondence of progressive die cooperate with 90 ° of bending dies, with the bending to 90 ° again of plate both sides, wherein shaping for the third time (it is thick to upset) makes the attenuation of product bottom thickness, and sidewall thickness more all even rigidity improves, and bottom and the sidewall corner of product becomes the right angle from fillet after the shaping;
(5) plate continues to push ahead, progressive die piercing punch, the punch and cut the waste material punch plate is carried out punching, cuts edge and cuts waste material of cutting edge; Piercing punch is in process of sheet forming bottom punching; The side cut punch cuts off plate according to the waste material shape that the first blanking profile punch and the second blanking profile punch cut out, cut the waste material punch then remaining waste material is cut off again;
(6) patrix is up, and compressed spring recovers gradually, and stripper, jigger pin and guide pin return to initial position, obtain the product that is shaped.
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| 许斌: "轿车骨架件级进模开发技术研究与应用", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
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| CN106563730A (en) * | 2016-10-25 | 2017-04-19 | 宁海永业汽车零部件有限公司 | Progressive die and method for machining harness supports |
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Application publication date: 20130918 |