CN105618575A - Drawing die for automobile fenders - Google Patents
Drawing die for automobile fenders Download PDFInfo
- Publication number
- CN105618575A CN105618575A CN201410606378.6A CN201410606378A CN105618575A CN 105618575 A CN105618575 A CN 105618575A CN 201410606378 A CN201410606378 A CN 201410606378A CN 105618575 A CN105618575 A CN 105618575A
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- China
- Prior art keywords
- blank holder
- guide pad
- punch
- stretching die
- chute
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Abstract
The invention discloses a drawing die for automobile fenders. The drawing die comprises an upper die body, a blank holder, a lower die plate and male dies. The number of the male dies is two. The blank holder is of a square-frame-shaped structure formed by connecting a plurality of frames. The two ends of the upper die body are each provided with a first guide block. The two ends of the blank holder are each provided with a second guide block. Each second guide block is provided with a first sliding groove, and each first guide block is inserted into the corresponding first sliding groove. The two ends of the lower die plate are each provided a second sliding groove, and each second guide block is inserted into the corresponding second sliding groove. According to the drawing die, the lower die plate is provided with the two male dies, the upper die body is provided with female die cavities correspondingly, and thus the two fenders can be subjected to stamping at one time, and accordingly the production efficiency is high. Each first guide block and the corresponding first sliding groove are matched with each other, so that the effect that the upper die body does linear motion is ensured. Each second guide block and the corresponding second sliding groove are matched with each other, and each frame and a corresponding third sliding groove are matched with each other, so that the effect that the blank holder does linear motion is ensured. The guidance property is good, the stability of the upper die body and the blank holder is good when a plate is subjected to drawing forming through the drawing die, and thus the forming quality of the fenders can be improved.
Description
Technical field
The invention belongs to technical field of mold, specifically, the present invention relates to a kind of fender stretching die.
Background technology
Along with the fast development of car industry, particularly household small-size automobile market expand in the urgent need to, Ge great main engine plants require to improve the production efficiency of product.
Beater or beat-up on automobile, being the vehicle-body outer panel for hiding wheel, because gaining the name like pinion in this component shape of old-fashioned vehicle body and position, beater or beat-up is installed rigging position and is divided into again wing and rear fender, wing is arranged on front-wheel place, and rear fender is arranged on trailing wheel place.
At present, fender is processed into by punching press on stretching die. Due to current stretching die once can only one beater or beat-up of punching press, cause that production efficiency is low, production capacity can not meet requirement, if improving production capacity, certainly will strengthening hardware to put into, hardware cost occupies very big ratio in production cost, will result in cost of goods manufactured and rises.
Owing to fender is typically with having certain thickness steel plate material, the defect such as concave surface that the fender so produced mainly there is also plate elastic return and produces, pinch plane, lax and ripple, the forming property of beater or beat-up is poor.
Summary of the invention
The present invention provides a kind of fender stretching die, it is therefore an objective to improve production efficiency and the forming property of beater or beat-up.
To achieve these goals, the technical scheme that the present invention takes is: a kind of fender stretching die, including upper mould, blank holder, lower bolster be located on lower bolster and the punch identical with fender shape, punch is provided with two, the work surface of upper mould is provided with the matrix cavity matched with two punch, the blank holder of square frame-like structure is between upper mould and lower bolster, in two punch wedge pressure flanges, and is provided with two beads of protrusion on the binder surface of each frame of blank holder.
The curved side portions of said two punch is relatively, and two punch link into an integrated entity at curved side portions place structure.
Described blank holder has four described frames, and adjacent two frames are vertical connection.
The machined surface profile that described bead contacts along described punch with described blank holder extends.
Described two beads on described frame are for being arranged side by side, and the height of the bead inside being positioned at is more than the height of the bead being positioned at outside, and the length of the bead inside being positioned at is more than the length of the bead being positioned at outside.
The section configuration of described bead is semicircle.
Described upper mould two ends have the first guide pad, and the two ends of described blank holder have the first chute allowing the first guide pad insert.
Described blank holder two ends have the second guide pad, and described first chute is located on the second guide pad, and the two ends of described lower bolster have the second chute allowing the second guide pad insert.
Described blank holder is vertically provided with the localizer for plate is positioned.
Described blank holder is slidably connected by breaker bolt and described lower bolster.
The fender stretching die of the present invention, by arranging two punch on lower bolster, relative set matrix cavity in upper mould, such that it is able to two beater or beat-ups of disposable punching press, production efficiency is high; Two punch are in a rotationally symmetrical arrangement on lower bolster so that mould compact overall structure, take up room little; Additionally, each frame of blank holder arranges two beads, ensure that drawn component has enough elongation percentage, during draw forming, punch is big with flitch contact surface, charging drag uniform between blank holder and upper mould, thus ensureing that punch can enter matrix cavity smoothly, make bottom and periphery each position charging drag uniform, improve rigidity and the intensity of beater or beat-up simultaneously, reach A level curve quality requirement, decrease produce due to elastic return concave surface, pinch plane, the defect such as lax and ripple, it is possible to enable the forming property of beater or beat-up to reach best.
Accompanying drawing explanation
This specification includes the following drawings, it is shown that content respectively:
Fig. 1 is the structural representation of fender stretching die;
Fig. 2 is the structural representation of upper mould;
Fig. 3 is the front view of upper mould;
Fig. 4 is the mould structure schematic diagram on removing after mould;
Fig. 5 is the structural representation after removing blank holder on Fig. 4 basis;
Fig. 6 is the top view in Fig. 5 structure;
Fig. 7 is the structural representation of blank holder;
Fig. 8 is the top view of blank holder;
Fig. 9 is the structural representation at bead place;
Figure 10 is the structural representation of localizer;
Figure is labeled as:
1, localizer; 2, breaker bolt; 3, upper mould; 31, matrix cavity; 32, the first guide pad; 33, groove; 34, the first guide plate; 4, blank holder; 41, frame; 42, bead; 43, the second guide pad; 44, the first chute; 45, the second guide plate; 46, the 3rd guide plate; 5, lower bolster; 51, the second chute; 52, the 3rd chute; 6, punch.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the specific embodiment of the present invention is described in further detail, it is therefore an objective to help those skilled in the art that the design of the present invention, technical scheme are had more complete, accurate and deep understanding, and contribute to its enforcement.
As shown in Figures 1 to 10, one fender stretching die of the present invention, including upper mould 3, blank holder 4, lower bolster 5 be located on lower bolster 5 and the punch 6 identical with fender shape, punch 6 is provided with two, two punch 6 on lower bolster 5 mutually each other 180 degree rotationally symmetrical, the work surface of upper mould 3 is provided with the matrix cavity 31 matched with two punch 6, punch 6 and matrix cavity 31 match and plate are carried out punching press, forming two beater or beat-ups, punch 6 is identical with the shape of the shape of the forming surface of matrix cavity 31 Yu fender. In this beater or beat-up stretching die, punch 6 arranges two on lower bolster 5, and matrix cavity 31 can hold two punch 6, there are in matrix cavity 31 two forming surface, a corresponding punch 6, stamps out two identical fenders such that it is able to disposable, hence it is evident that improve production efficiency respectively; And two punch 6 are in a rotationally symmetrical arrangement on lower bolster 5, so that mould compact overall structure, take up room little. As it is shown in figure 1, blank holder 4 is between mould 3 and lower bolster 5, in the through hole arranged in two punch 6 wedge pressure flange 4, and protrude upward in the matrix cavity 31 inserting mould 3 from through hole.
Specifically, fender side in the longitudinal direction generally all has the segmental arc for holding automotive wheel, and the edge of the forming surface of punch 6 has one section of circular arc accordingly. In this beater or beat-up stretching die, the shape of upper mould 3 and lower bolster 5 is also rectangle, punch 6 and matrix cavity 31 concentrate on the medium position on mould 3 and lower bolster 5 length direction respectively and arrange, as shown in Figure 6, took the straight line of mould 3 and lower bolster 5 central point as rotation centerline, this rotation centerline and the end face of lower bolster 5 and vertical. Two punch 6 on lower bolster 5 are using rotation centerline as rotation axis, according to mutually each other 180 degree of rotational symmetric modes be arranged (by one of them punch 6 with rotation centerline for installation site that the postrotational position of axis degree of carrying out is another punch 6), additionally, the arcuate flanks of two punch 6 is relative, and the both ends of each punch 6 lay respectively at, the both sides of axis. Arranging through these, making on lower bolster 5 two punch 6 is what stagger, as shown in Figure 6. Accordingly, the forming surface in the matrix cavity 31 of upper mould 3 is also adopted by the mode identical with two punch 6 and is arranged, as shown in Figure 3.
As preferably, the curved side portions of two punch 6 is relatively, and two punch 6 link into an integrated entity at curved side portions place structure, form one entirety, between two punch 6 and be arc transition, and the groove of one S shape of formation between two punch 6. And, punch 6 and lower bolster 5 can also be integrated casting, be not only convenient for processing and manufacturing, and intensity is high.
As shown in Figure 7 and Figure 8, blank holder 4 is square frame-like structure, has four frames 41, perpendicular between adjacent two frames 41. Four frames 41 are centered around the integrally-built surrounding that two punch 6 are formed, and the medial surface of each frame 41 is fitted with a sidepiece profile of punch 6 respectively. Being equipped with bead 42 on the binder surface of each frame 41, bead 42 is the structure on binder surface towards projection, has certain length, is provided with the groove 33 matched with bead 42 accordingly at the work surface of upper mould 3. Bead 42 is for increasing charging resistance, controls to walk the speed of material.
As preferably, as shown in Figure 7 and Figure 8, bead 42 on each frame 41 of blank holder 4 is respectively equipped with two, as shown in Figure 9, article two, bead 42 is for being arranged side by side, wherein the bead 42 of inner side is between the bead 42 in punch 6 and outside, and the bead 42 on each frame 41 is the profile extension of the profile contacted with blank holder 4 along corresponding punch 6 sidepiece, and the two ends of bead 42 extend respectively to the integrally-built adjacent Liang Ge corner that two punch 6 are formed.
This fender stretching die, it is on the basis of computer simulation model, employing numerical control device is processed, the work surface making punch and matrix reaches " minute surface ", bead 42 on processing blank holder 4, bead 42 on each frame 41 of blank holder 4 arranges two, it is ensured that drawn component has enough elongation percentage. Therefore during draw forming, punch 6 is big with flitch contact surface, charging drag uniform between blank holder 4 and upper mould 3, thus ensureing that punch 6 can enter matrix cavity 31 smoothly, makes bottom and periphery each position charging drag uniform; Improve rigidity and the intensity of beater or beat-up simultaneously, reach A level curve quality requirement, decrease produce due to elastic return concave surface, pinch plane, the defect such as lax and ripple, the forming property of beater or beat-up can reach best.
As shown in Figure 9, it is spaced a distance between two beads 42 on each frame 41 of blank holder 4, the height of the bead 42 inside being positioned at is more than the height of the bead 42 being positioned at outside, and the length of the bead 42 inside being positioned at is more than the length of the bead 42 being positioned at outside, to adapt to the change of pressure-plate-force.
As it is shown in figure 9, the section configuration of the bead 42 on each frame 41 of blank holder 4 is semicircle, the bead 42 of formation is semicircle muscle.
As shown in Figure 1, first guide pad 32 it is respectively provided with at the two ends of the length direction of upper mould 3, and first guide pad 32 be positioned at the center position in end portion width direction, the two ends of corresponding blank holder 4 are respectively provided with the first chute 44 that first guide pad 32 allowing mould 3 one end inserts. As shown in Figure 7, second guide pad 43 it is respectively provided with at the two ends of the length direction of blank holder 4, second guide pad 43 is arranged on the frame 41 at blank holder 4 two ends, and second guide pad 43 be positioned at the center position of frame 41 width, first chute 44 is located on the second guide pad 43, and the first chute 44 length direction along blank holder 4 run through the second guide pad 43. As preferably, first guide pad 32 be shaped as rectangle, corresponding first chute 44 is also rectangular channel, wherein three sides of the first guide pad 32 are provided with the first guide plate 34, first guide plate 34 is for frame 41 contacts side surfaces with two relative inner surfacies and blank holder 4 of the first chute 44, the effect of guiding can be played on the one hand, mould 3 can be avoided directly directly to contact with blank holder 4 on the other hand, the abrasion of mould 3 in minimizing.
As it is shown in figure 5, be respectively provided with second chute 51 allowing the second guide pad 43 insert at the two ends of the length direction of lower bolster 5. As preferably, second guide pad 43 be shaped as rectangle, corresponding second chute 51 is also rectangular channel, relative two side of the second guide pad 43 is provided with the second guide plate 45, second guide plate 45 is to contact for two relative inner surfacies with the second chute 51, blank holder 4 can be played the effect of guiding on the one hand, blank holder 4 can be avoided directly directly to contact with lower bolster 5 on the other hand, reduce the abrasion of blank holder 4.
As shown in Figure 5, the 3rd chute 52 that two the relative frames 41 allowing blank holder 4 insert it is respectively provided with at the two ends of the width of lower bolster 5, the two frame 41 is the frame 41 of length length, second guide pad 43 is located on the frame 41 that the length of blank holder 4 is short, the length of the 3rd chute 52 length more than the second chute 51. Frame 41 be shaped as rectangle, corresponding 3rd chute 52 is also rectangular channel, it is provided with the 3rd guide plate 46 at the two ends of the length direction of frame 41,3rd guide plate 46 is to contact for two relative inner surfacies with the 3rd chute 52, blank holder 4 can be played the effect of guiding on the one hand, the frame 41 of blank holder 4 can be avoided directly directly to contact with lower bolster 5 on the other hand, reduce the abrasion of blank holder 4 further.
This stretching die is when to Sheet Metals Under Tensile Stresses, upper mould 3 to be pressed down, first guide pad 32 and the first chute 44 match, guaranteeing that upper mould 3 is for linear motion, blank holder 4 is up, the second guide pad 43 and the second chute 51 matches, frame 41 matches with the 3rd chute 52, guarantee that blank holder 4 is for linear motion, guidance quality is good, such that it is able to improve the forming quality of beater or beat-up, improves the forming property of beater or beat-up further.
As shown in Figure 7 and Figure 8, being provided with the localizer 1 for plate is positioned on each frame 41 of blank holder 4, localizer 1 is for being vertically arranged, and the overhead height of localizer 1 is higher than the height of binder surface, and the structure of localizer 1 is as shown in Figure 10. In the present embodiment, localizer 1 is provided with eight altogether, and each frame 41 is respectively equipped with two.
As shown in Figure 4; blank holder 4 is to be slidably connected with lower bolster 5 by several breaker bolts 2; breaker bolt 2 is for be vertically located on lower bolster 5; the lower end of breaker bolt 2 is fixing with lower bolster 5 to be connected; the circular hole arranged bottom blank holder 4 is rushed across in its upper end; when blank holder 4 is up, this breaker bolt 2 can play safeguard protection effect.
Above in association with accompanying drawing, the present invention is exemplarily described. Obviously, the present invention implements and is not subject to the restrictions described above. As long as have employed the improvement of the various unsubstantialities that the design of the method for the present invention carries out with technical scheme; Or not improved, the above-mentioned design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (10)
1. a fender stretching die, including upper mould, blank holder, lower bolster be located on lower bolster and the punch identical with fender shape, it is characterized in that: described punch is provided with two, the work surface of described upper mould is provided with the matrix cavity matched with two punch, described blank holder is the square frame-like structure connected and composed by multiple frames, upper mould two ends have the first guide pad, blank holder two ends have the second guide pad, second guide pad is provided with the first chute allowing the first guide pad insert, the two ends of described lower bolster have the second chute allowing the second guide pad insert.
2. fender stretching die according to claim 1, it is characterised in that: the other two ends of described lower bolster have the 3rd chute allowing two relative frames of described blank holder insert.
3. fender stretching die according to claim 1 and 2, it is characterised in that: described second guide pad is located on two relative frames of described blank holder.
4. fender stretching die according to claim 3, it is characterized in that: described first guide pad be shaped as rectangle, described first chute is rectangular channel, and wherein three sides of the first guide pad are provided with the first guide plate of the frame contacts side surfaces with the inner surface of the first chute and described blank holder.
5. fender stretching die according to claim 4, it is characterized in that: described second guide pad be shaped as rectangle, described second chute is rectangular channel, and relative two side of the second guide pad is provided with the second guide plate that the inner surface with the second chute contacts.
6. fender stretching die according to claim 5, it is characterised in that: the curved side portions of said two punch is relatively, and two punch link into an integrated entity at curved side portions place structure.
7. fender stretching die according to claim 6, it is characterised in that: the binder surface of each frame of described blank holder is provided with two beads of protrusion.
8. fender stretching die according to claim 7, it is characterized in that: described two beads on described frame are for being arranged side by side, the height of the bead inside being positioned at is more than the height of the bead being positioned at outside, and the length of the bead inside being positioned at is more than the length of the bead being positioned at outside.
9. fender stretching die according to claim 8, it is characterised in that: the section configuration of described bead is semicircle.
10. fender stretching die according to claim 9, it is characterised in that: described blank holder is vertically provided with the localizer for plate is positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606378.6A CN105618575A (en) | 2014-10-31 | 2014-10-31 | Drawing die for automobile fenders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606378.6A CN105618575A (en) | 2014-10-31 | 2014-10-31 | Drawing die for automobile fenders |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105618575A true CN105618575A (en) | 2016-06-01 |
Family
ID=56034137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410606378.6A Withdrawn CN105618575A (en) | 2014-10-31 | 2014-10-31 | Drawing die for automobile fenders |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105618575A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798100A (en) * | 2016-06-03 | 2016-07-27 | 昆山达亚汽车零部件有限公司 | Forming method for vehicle secondary bracket |
| CN105855398A (en) * | 2016-06-03 | 2016-08-17 | 昆山威特亿模具有限公司 | Draw forming die structure |
| CN105945151A (en) * | 2016-06-03 | 2016-09-21 | 昆山达亚汽车零部件有限公司 | Forming technology of automobile part |
| CN106077281A (en) * | 2016-06-03 | 2016-11-09 | 昆山威特亿模具有限公司 | Drawing and shaping mold for automobile metal plate work |
| CN114346045A (en) * | 2021-12-24 | 2022-04-15 | 安徽江淮福臻车体装备有限公司 | Processing die surface treatment method for drawing die |
-
2014
- 2014-10-31 CN CN201410606378.6A patent/CN105618575A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105798100A (en) * | 2016-06-03 | 2016-07-27 | 昆山达亚汽车零部件有限公司 | Forming method for vehicle secondary bracket |
| CN105855398A (en) * | 2016-06-03 | 2016-08-17 | 昆山威特亿模具有限公司 | Draw forming die structure |
| CN105945151A (en) * | 2016-06-03 | 2016-09-21 | 昆山达亚汽车零部件有限公司 | Forming technology of automobile part |
| CN106077281A (en) * | 2016-06-03 | 2016-11-09 | 昆山威特亿模具有限公司 | Drawing and shaping mold for automobile metal plate work |
| CN114346045A (en) * | 2021-12-24 | 2022-04-15 | 安徽江淮福臻车体装备有限公司 | Processing die surface treatment method for drawing die |
| CN114346045B (en) * | 2021-12-24 | 2023-08-29 | 安徽江福科技有限公司 | Processing die surface treatment method of drawing die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20160601 |