CN103480747A - Fender double-drawing die - Google Patents

Fender double-drawing die Download PDF

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Publication number
CN103480747A
CN103480747A CN201310470348.2A CN201310470348A CN103480747A CN 103480747 A CN103480747 A CN 103480747A CN 201310470348 A CN201310470348 A CN 201310470348A CN 103480747 A CN103480747 A CN 103480747A
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CN
China
Prior art keywords
lappet
punch
die
dies
fender
Prior art date
Application number
CN201310470348.2A
Other languages
Chinese (zh)
Inventor
阚道峰
阮泽军
Original Assignee
义乌赵龙重工有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 义乌赵龙重工有限公司 filed Critical 义乌赵龙重工有限公司
Priority to CN201310470348.2A priority Critical patent/CN103480747A/en
Publication of CN103480747A publication Critical patent/CN103480747A/en

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Abstract

The invention provides a fender double-drawing die which saves materials for use and is free of a cracking or subfissure phenomenon in the drawing process. The fender double-drawing die comprises an upper die, a lower die and a blank holder, wherein the upper die is provided with pressing materials; a fender terrace die is formed by combining two fender terrace die pieces, wherein one fender terrace die piece rotates 180 degrees to be arranged symmetrical with the other fender terrace die piece, the two fender terrace die pieces are not in contact with each other, and a trimming die stripper plate is arranged between the fender terrace die pieces. By means of the design of the fender double-drawing die, two fenders can be formed at the same time, and the utilization rate of the materials is increased at the same time. Besides, a product produced through the fender double-drawing die can improve the efficiency of follow-up operation, and the height arrangement of a binder surface, a flange face and the fender terrace die pieces ensures that the cracking or subfissure phenomenon does not occur when the product is formed.

Description

The two drawing dies of a kind of lappet

Technical field

The present invention relates to mould, particularly a kind of mould of lappet.

Background technology

Lappet is the outer covering piece of automobile, so lappet is to the considerable part of the outward appearance of automobile.In the designing and developing of existing lappet mould, the basic single-piece that adopts is drawn or the left side and the right matched moulds seat but do not conform to die, draw with tablet be also two independent.As shown in Figure 1 be that single-piece is drawn.Because the most shape of lappet is suitable asymmetric type, in order better to pull out qualified product, tend to do a pre-blanking before drawing, as two angles of Fig. 1-1 and Fig. 1-2, just need to first do pre-blanking, what have simply directly makees a shear knife on drawing die.

Technological deficiency or the deficiency of the aspects such as the structure that existing background technology exists, function:

1, the efficiency of the utilization of single production board and production is low.

2, the cost of single production board is high.

3, in drawing process, the position of die can be because many material can ftracture or the hidden defect of drawing of splitting phenomenon herein.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of materials and economizes, nothing cracking or the hidden two drawing dies of lappet that split phenomenon in drawing process, for this reason, the present invention is by the following technical solutions: it comprises patrix, counterdie and blank holder, described patrix arranges binder, the lappet punch is set on described counterdie, described blank holder is set on counterdie, and be looped around lappet punch surrounding, it is characterized in that described lappet punch is that two lappet punch parts are combined, one of them lappet punch part is symmetrical set with another lappet punch part after Rotate 180 °, two lappet punch parts do not contact, and between lappet punch part, the edger stripper is set.

On the basis that adopts above technical scheme, the present invention can also adopt following further scheme:

The joint of two lappet punch adopts circular arc or surface blending, and the minimum widith of the stripper formed between two lappet punch is more than or equal to 70mm.

Be provided with material returned spring and breaker bolt on described stripper.

The both ends of described stripper and middle part respectively arrange a breaker bolt, and the two ends of stripper respectively arrange 2-3 material returned spring, are evenly equipped with 5-7 material returned spring between both ends.

The die parting line of mould, in surrounding and the crossing bottom, R angle of blank holder face of lappet punch, forms and is similar to rectangular shape.

Described lappet punch two side flanging places (the follow-up material flange that draws) are provided with the storing bag, and lappet draws the material flanging process in follow-up technique, and the setting of storing bag is that described storing inter-packet gap 100mm is arranged in order to prevent the flange cracking.

Described blank holder formed blank holder after being inserted in counterdie contacts the binder surface that forms and is more than or equal to 20mm lower than the height of the flange face minimum point of lappet punch with patrix, around the lappet punch, highest point is more than or equal to 40mm higher than the height of binder surface.

The edger stripper exceeds lappet trimming line 20-30mm in the joint of lappet punch, the empty avoiding of falling profile 15mm is done in all the other positions, joint, reduces processing capacity and bedding-in amount.

For the position of flange is arranged in the lappet subsequent process, the lappet technical face will surpass the width 5mm at the R of lappet angle own.

Owing to having adopted technical scheme of the present invention, the present invention has designed double leaf daughter board drawing die, and two lappets of moulding have simultaneously improved the utilization rate of material simultaneously.In addition, the efficiency that the product that the present invention is produced also can successor operation, the height setting of its binder surface and lappet punch not there will be while having guaranteed formed product yet splits or the hidden phenomenon of splitting.

The accompanying drawing explanation

Fig. 1 is counterdie schematic diagram of the present invention.

Fig. 2 is blank holder schematic diagram of the present invention.

Fig. 3 is patrix schematic diagram of the present invention.

Fig. 4 is the front view after die assembly of the present invention.

Fig. 5 is the top view after die assembly of the present invention.

The schematic diagram that Fig. 6 is stripper of the present invention.

The schematic diagram that Fig. 7 is binder of the present invention.

The schematic top plan view that Fig. 8 is the lappet punch after die assembly of the present invention.

101: patrix, 102: blank holder, 103: counterdie, 301: the first wearing plates,, 302: the second wearing plates, 401: stroke bolt, 402: balance weight, 403: adjustment block, 404: handling block, 405: location tool, 406 lifting rods.

The specific embodiment

With reference to Figure of description.

With reference to figure 1, Fig. 2, Fig. 3, it comprises patrix 101, counterdie 103 and blank holder 102 the present invention, and described patrix arranges binder 501, on described counterdie 101, the lappet punch is set, and is illustrated in figure 8 the schematic top plan view of lappet punch.Described blank holder 102 is set on counterdie, and is looped around lappet punch surrounding, and described counterdie 103 is provided with handling block 404, stroke bolt 401, balance weight 402 and lifting rod 406.Described patrix also is provided with the first wearing plate 301 and lifting rod 406.

Described ring mould is provided with the first wearing plate 301 and the second wearing plate 302, ring mould surrounding stationary positioned tool 405, and balance weight 406, as shown in Figure 2,

Described lappet punch is that two lappet punch parts are combined, one of them lappet punch part is symmetrical set with another lappet punch part after Rotate 180 °, two lappet punch parts do not contact, and between lappet punch part, edger stripper 500 are set.Described lappet punch comprises two lappet punch parts, one of them docks with another lappet punch part after Rotate 180 °, single-piece of the prior art is drawn to improve and become two drawing of the present invention, can realize that two of moulds draw, produce two lappets, it is not only to produce a product compared to prior art in the one-shot forming drawing process more, has also improved the utilization rate of material.Because the bending curvature part of lappet is larger, during the single-piece moulding, the material of this part is a lot of as waste material (material returned) waste, but of the present invention pair of drawing process is that two lappets of placing are in correspondence with each other produced simultaneously, its mould also has two lappet punch, has utilized lappet sweep material simultaneously, reaches the dual purpose that improves stock utilization and production efficiency, economic benefit is obvious, generally can draw the stock utilization that improves 20% left and right than single-piece.Simultaneously, because black soy sauce both sides symmetry is drawn, relative like this four limits stressed relatively even, the die parting line of mould is in the surrounding of lappet punch, formation is similar to rectangular shape, when the die parting line in technical solution of the present invention just can single-piece of the prior art draw, die parting line does not vary widely like that, can more be conducive to draw, and in drawing process, the position of die is not prone to cracking or the hidden phenomenon of splitting.

The joint of two lappet punch parts adopts circular arc or surface blending, two lappet punch docking location height that draw must be close, can not there is difference in height sharply to change, therefore, in the arc transition of docking location left and right fairing, be conducive to drawing of whole product.The minimum widith of the stripper formed between two lappet punch is more than or equal to 70mm.Be provided with material returned spring and breaker bolt on described stripper.

Further, the both ends of described stripper and middle part respectively arrange a breaker bolt, and the two ends of stripper respectively arrange 2-3 material returned spring, are evenly equipped with 5-7 material returned spring between both ends.

The 70mm minimum widith the intensity that can guarantee whole stripper is set, but can not be excessive, excessive rear whole main product technical face will strengthen, corresponding use material also will strengthen, and also will guarantee the installation of material returned spring and breaker bolt simultaneously.

110 liang of side flanging places of described lappet punch (the follow-up material flanging process that draws in the technique of lappet) are provided with the storing bag, and described storing inter-packet gap 100mm is arranged, and arranging of storing bag guaranteed can not split because of flange in follow-up work.

Described blank holder formed blank holder 102 after being inserted in counterdie contacts the binder surface that forms and is more than or equal to 20mm lower than the height of the flange face minimum point of lappet punch with patrix, around lappet punch 110, highest point is more than or equal to 40mm higher than the height of binder surface.For the height of binder surface to most important in whole product drawing process, it is the key point that affects the product quality quality, the binder surface height can not be too high, therefore, being provided with above-mentioned two highly limits, guaranteed the roughly retinue of binder surface, the condition that just can ensure is extracted qualified part product, i.e. lappet out.

The edger stripper exceeds lappet trimming line 20-30mm in the joint of lappet punch, the empty avoiding of falling profile 15mm is done in all the other positions, guaranteed on the one hand the quality of production of lappet, processing capacity while also having reduced operation and the bedding-in amount of pincers worker simultaneously, realize the further minimizing of cost, shortened the construction cycle.

For the position of flange is arranged in the lappet subsequent process, the lappet technical face will surpass the width 5mm at lappet R angle, guarantees the twolip line not occur in this flange position in follow-up flanging process, has further guaranteed product quality.

Claims (9)

1. two drawing dies of a lappet, it comprises upper die and lower die and blank holder, described patrix arranges binder, the lappet punch is set on described counterdie, described blank holder is set on counterdie, and be looped around lappet punch surrounding, it is characterized in that described lappet punch is that two lappet punch parts are combined, one of them lappet punch part is symmetrical set with another lappet punch part after Rotate 180 °, two lappet punch parts do not contact, and between lappet punch part, the edger stripper are set.
2. the two drawing dies of a kind of lappet according to claim 1, is characterized in that the joint of two lappet punch adopts circular arc or surface blending, answer >=70mm of circular arc or surface blending in the middle of two lappets.
3. the two drawing dies of a kind of lappet according to claim 1, is characterized in that being provided with material returned spring and breaker bolt on described edger stripper.
4. the two drawing dies of a kind of lappet according to claim 3, is characterized in that the both ends of described stripper and middle part respectively arrange a breaker bolt, and the two ends of stripper respectively arrange 2-3 material returned spring, are evenly equipped with 5-7 material returned spring between both ends.
5. the two drawing dies of a kind of lappet according to claim 1, is characterized in that the die parting line of mould, in lappet punch and the crossing bottom, R angle of blank holder face, forms and is similar to rectangular shape.
6. the two drawing dies of a kind of lappet according to claim 1, is characterized in that described lappet punch two side flanging places are provided with the storing bag, prevents the flange cracking, and described storing inter-packet gap 100mm is arranged.
7. two drawing dies of a kind of lappet according to claim 1, it is characterized in that described blank holder formed blank holder after being inserted in counterdie contacts the binder surface that forms and is more than or equal to 20mm lower than the height of the flange face minimum point of lappet punch with patrix, around the lappet punch, highest point is more than or equal to 40mm higher than the height of binder surface.
8. the two drawing dies of a kind of lappet according to claim 7, is characterized in that the edger stripper exceeds lappet trimming line 20-30mm in the joint of lappet punch, and the empty avoiding of falling profile 15mm is done in all the other positions, joint.
9. the two drawing dies of a kind of lappet according to claim 1, is characterized in that for the position of flange is arranged in lappet outward appearance part subsequent process, and the lappet technical face will surpass the width 5mm at the R of lappet angle own.
CN201310470348.2A 2013-10-10 2013-10-10 Fender double-drawing die CN103480747A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310470348.2A CN103480747A (en) 2013-10-10 2013-10-10 Fender double-drawing die

Publications (1)

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CN103480747A true CN103480747A (en) 2014-01-01

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104353712A (en) * 2014-11-09 2015-02-18 沈阳黎明航空发动机(集团)有限责任公司 Process for controlling resilience of asymmetrically bent stamping parts
CN104492944A (en) * 2014-11-25 2015-04-08 重庆市天益模具有限公司 Drawing die of automobile taillight mounting plate
CN106040812A (en) * 2016-08-09 2016-10-26 中国第汽车股份有限公司 Preflanging equipment and preflanging method
CN107552645A (en) * 2017-09-22 2018-01-09 安徽江淮汽车集团股份有限公司 Automobile tail gate inner panel forming technology
CN107570586A (en) * 2017-09-07 2018-01-12 安徽江淮汽车集团股份有限公司 A kind of process and mould structure for solving the high flange cracking such as arc

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003200297A (en) * 2001-12-28 2003-07-15 Suzuko Seisakusho:Kk Multistage forming die
CN101406917A (en) * 2008-11-21 2009-04-15 四川成飞集成科技股份有限公司 General-purpose drawing mold of single/double action press
CN101869946A (en) * 2010-06-30 2010-10-27 奇瑞汽车股份有限公司 Drawing and shaping mold structure
CN102294432A (en) * 2010-06-22 2011-12-28 鑫鸿交通工业(安徽)有限公司 Method for manufacturing automobile engine cover and mould and material plate used in method
CN102294433A (en) * 2010-06-22 2011-12-28 鑫鸿交通工业(安徽)有限公司 Method for manufacturing automobile fender and mould used in method
CN203737822U (en) * 2013-10-10 2014-07-30 义乌赵龙重工有限公司 Fender double-drawing mould

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003200297A (en) * 2001-12-28 2003-07-15 Suzuko Seisakusho:Kk Multistage forming die
CN101406917A (en) * 2008-11-21 2009-04-15 四川成飞集成科技股份有限公司 General-purpose drawing mold of single/double action press
CN102294432A (en) * 2010-06-22 2011-12-28 鑫鸿交通工业(安徽)有限公司 Method for manufacturing automobile engine cover and mould and material plate used in method
CN102294433A (en) * 2010-06-22 2011-12-28 鑫鸿交通工业(安徽)有限公司 Method for manufacturing automobile fender and mould used in method
CN101869946A (en) * 2010-06-30 2010-10-27 奇瑞汽车股份有限公司 Drawing and shaping mold structure
CN203737822U (en) * 2013-10-10 2014-07-30 义乌赵龙重工有限公司 Fender double-drawing mould

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104353712A (en) * 2014-11-09 2015-02-18 沈阳黎明航空发动机(集团)有限责任公司 Process for controlling resilience of asymmetrically bent stamping parts
CN104492944A (en) * 2014-11-25 2015-04-08 重庆市天益模具有限公司 Drawing die of automobile taillight mounting plate
CN106040812A (en) * 2016-08-09 2016-10-26 中国第汽车股份有限公司 Preflanging equipment and preflanging method
CN106040812B (en) * 2016-08-09 2018-01-16 中国第一汽车股份有限公司 Pre- flanging device and pre- method for flanging
CN107570586A (en) * 2017-09-07 2018-01-12 安徽江淮汽车集团股份有限公司 A kind of process and mould structure for solving the high flange cracking such as arc
CN107552645A (en) * 2017-09-22 2018-01-09 安徽江淮汽车集团股份有限公司 Automobile tail gate inner panel forming technology
CN107552645B (en) * 2017-09-22 2018-12-21 安徽江淮汽车集团股份有限公司 Automobile tail gate inner panel forming technology

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Application publication date: 20140101