CN204234583U - A kind of automobile B-pillar inner plate stretching die - Google Patents
A kind of automobile B-pillar inner plate stretching die Download PDFInfo
- Publication number
- CN204234583U CN204234583U CN201420669816.9U CN201420669816U CN204234583U CN 204234583 U CN204234583 U CN 204234583U CN 201420669816 U CN201420669816 U CN 201420669816U CN 204234583 U CN204234583 U CN 204234583U
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- Prior art keywords
- punch
- automobile
- pillar inner
- inner plate
- stretching die
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Abstract
The utility model discloses a kind of automobile B-pillar inner plate stretching die, comprise patrix, blank holder, lower bolster and two punch, the working face of patrix is provided with the matrix cavity matched with two punch, between two punch, the position of corresponding plate garbage area is provided with puncture knife, and the inwall of matrix cavity is provided with the upper holding tank holding puncture knife.Automobile B-pillar inner plate stretching die of the present utility model, by arranging two punch on lower bolster, relative set matrix cavity in patrix, thus two B post inner panels can be gone out by disposable draw forming, production efficiency is high; In addition, between two punch, puncture knife is set, in drawing process, plate garbage area is cut off one openning by puncture knife, be convenient to material internal flowing, deep drawing of sheet is not fully ftractureed again, thus this sequence of drawing can be operated in just can complete what originally need two operations to complete, therefore save die manufacturing cost and cost of stamping.
Description
Technical field
The utility model belongs to technical field of mold, and specifically, the utility model relates to a kind of automobile B-pillar inner plate stretching die.
Background technology
Along with the fast development of car industry, the particularly production efficiency requiring to improve product in the urgent need to, Ge great main engine plants that expands of household small-size automobile market.
At present, the B post inner panel on automobile, needs to carry out draw forming on stretching die.Because current drawing die once can only be shaped a B post inner panel, cause production efficiency low, production capacity can not meet the demands, if improve production capacity, certainly will will strengthen hardware to drop into, hardware cost occupies very large ratio in production cost, and cost of goods manufactured will be caused to rise.
Because automobile B-pillar inner plate is complex-shaped, shaping difficulty is large.During drawing plate because the moulding degree of depth is deep, drawing time the more difficult plate finished product district that causes of material flowing occur breaking.Normal practice is reduced by Forming depth in drawing operation, thus reduce the amount of flow of material in drawing sequence, then by follow-up die reshaping to final product; But the increase of operation content adds the cost of Making mold and later maintenance undoubtedly.
Utility model content
The utility model provides a kind of automobile B-pillar inner plate stretching die, and object improves the production efficiency of B post inner panel, and is convenient to material internal flowing when drawing, deep drawing of sheet is not fully ftractureed again.
To achieve these goals, the technical scheme that the utility model is taked is: a kind of automobile B-pillar inner plate stretching die, comprise patrix, blank holder, lower bolster and be located at punch on lower bolster and identical with automobile B-pillar inner plate shape, and punch is provided with two, the working face of patrix is provided with the matrix cavity matched with two punch, between two punch, the position of corresponding plate garbage area is provided with puncture knife, and the inwall of matrix cavity is provided with the upper holding tank holding puncture knife.
Described two punch are arranged along lower bolster width on described lower bolster, and are symmetrical.
Described two punch link into an integrated entity structure, and described puncture knife is located at the join domain between two punch.
Described puncture knife is provided with two altogether, and two puncture knifes are linearly arranged along the length direction of stretching die.
Described join domain is provided with the lower holding tank holding described puncture knife.
Described puncture knife is pointed puncture knife.
Described blank holder two ends have guide pad, and the two ends of described patrix have the first chute allowing guide pad insert.
The other two ends of described patrix have the second chute allowing two of described blank holder relative frames insert.
Described blank holder is vertically provided with the locator for positioning plate.
Described blank holder is slidably connected by breaker bolt and described lower bolster.
Automobile B-pillar inner plate stretching die of the present utility model, by arranging two punch on lower bolster, relative set matrix cavity in patrix, thus two B post inner panels can be gone out by disposable draw forming, production efficiency is high; In addition, between two punch, puncture knife is set, in drawing process, plate garbage area is cut off one openning by puncture knife, be convenient to material internal flowing, deep drawing of sheet is not fully ftractureed again, thus this sequence of drawing can be operated in just can complete what originally need two operations to complete, therefore save die manufacturing cost and cost of stamping.
Accompanying drawing explanation
This description comprises the following drawings, shown content respectively:
Fig. 1 is the structural representation of automobile B-pillar inner plate stretching die;
Fig. 2 is the structural representation of patrix;
Fig. 3 is the front view of patrix;
Fig. 4 is the mould structure schematic diagram after removing patrix;
Fig. 5 is the top view of Fig. 4 structure;
Fig. 6 is the top view after Fig. 4 structure removes blank holder and puncture knife;
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 puncture knife;
Figure 11 is the sectional view of puncture knife and patrix;
Figure 12 is the structural representation of locator;
Be labeled as in figure:
1, locator; 2, breaker bolt; 3, patrix; 31, matrix cavity; 32, bead; 33, hole is dodged; 34, the first chute; 35, the second chute; 36, upper holding tank; 37, traveller; 4, blank holder; 41, frame; 42, groove; 43, guide pad; 44, the first guide plate; 45, the second guide plate; 5, lower bolster; 6, punch; 61, join domain; 62, lower holding tank; 7, puncture knife.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, be described in further detail detailed description of the invention of the present utility model, object helps those skilled in the art to have more complete, accurate and deep understanding to design of the present utility model, technical scheme, and contribute to its enforcement.
As shown in Figures 1 to 12, a kind of automobile B-pillar inner plate stretching die of the utility model, comprise patrix 3, blank holder 4, lower bolster 5 and be located at punch 6 on lower bolster 5 and identical with automobile B-pillar inner plate shape, punch 6 is provided with two, the working face of patrix 3 is provided with the matrix cavity 31 matched with two punch 6, punch 6 and matrix cavity 31 match and carry out draw forming to plate, and once-forming two B post inner panels, punch 6 is identical with the shape of automobile B-pillar inner plate with the shape of the forming surface of matrix cavity 31.In this B post inner panel 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 respectively corresponding punch 6, thus two the identical automobile B-pillar inner plate that can disposablely be shaped, significantly improve production efficiency.As shown in Figure 1, blank holder 4 is between patrix 3 and lower bolster 5, two punch 6 in the through hole arranged in wedge pressure flange 4, and protrude upward from through hole insert patrix 3 matrix cavity 31 in.
Specifically, automobile B-pillar inner plate is microscler, and along its length from one end to the width of the other end be what reduce gradually, the shape of the forming surface in corresponding punch 6 and matrix cavity 31 and automobile B-pillar inner plate mating shapes, also for along its length from one end to the width of the other end be what reduce gradually, as shown in Figure 3 and Figure 6.In this B post inner panel stretching die, the shape of patrix 3 and lower bolster 5 is also rectangle, the medium position that punch 6 and matrix cavity 31 concentrate on lower bolster 5 and patrix 3 length direction is respectively arranged, as shown in Figure 6, two punch 6 are arranged along the width of lower bolster 5 at the end face of lower bolster 5, and be arranged symmetrically with for line of symmetry with the medium line of the width mid point crossing lower bolster 5, and the large end of two punch 6 width is positioned at the same side.Two punch 6 for be arranged symmetrically with in the width direction, thus can make mold integral compact conformation on lower bolster 5, take up room little.Accordingly, the forming surface in the matrix cavity 31 of patrix 3 also adopts the mode identical with two punch 6 to arrange, as shown in Figure 3.
As preferably, two punch 6 link into an integrated entity structure, and forming the protuberance that of being positioned on lower bolster 5 is overall, is join domain 61 between two punch 6, the corresponding plate garbage area of join domain 61.And punch 6 and lower bolster 5 also can be integrated casting, be not only convenient to processing and manufacturing, and intensity are high.
As shown in Fig. 5 and Figure 11, the join domain 61 between two punch 6 is provided with puncture knife 7, and the position of the corresponding plate garbage area of inner roof wall of corresponding female die cavity 31 is provided with the upper holding tank 36 holding puncture knife 7.Puncture knife 7 is set between two punch 6, in drawing process, plate garbage area is cut off one openning by puncture knife 7, be convenient to material internal flowing, deep drawing of sheet is not fully ftractureed again, thus this sequence of drawing can be operated in just can complete what originally need two operations to complete, therefore can save die manufacturing cost and cost of stamping.
As preferably, puncture knife 7 is provided with two altogether, and two puncture knifes 7 are linearly arranged along the length direction of stretching die, and is provided with a lower holding tank 62 of accommodation two puncture knifes 7 at the end face of join domain 61.Lower holding tank 62 is straight-line groove, and its length is equal with the overall length of two puncture knifes 7, and its width is equal with the width of two puncture knifes 7, and the width of upper holding tank 36 is slightly larger than the width of two puncture knifes 7.Lower holding tank 62 is extend to from one end that two punch 6 width are large the middle position being roughly positioned at punch 6, guarantees that puncture knife 7 cuts off openning larger together plate garbage area in drawing process.
As preferably, as shown in Figure 10, two puncture knifes 7 are pointed puncture knife, and its tip is protruded upward, stretch out in lower holding tank 62, and plate garbage area can be cut off by pointed puncture knife easily.
The face that two puncture knifes 7 contact with the bottom surface of lower holding tank 62 is plane, as variant embodiment, between puncture knife 7 and the bottom surface of lower holding tank 62, can cushion block be set, by the cushion block that this die puncture knife 7 is arranged, can the height of rapid adjustment die puncture knife 7, only need be ground by general-purpose grinder when adjusting, milling machine is holed, technique is simple, and the process-cycle is short, and cost is low.
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 around the overall protuberance of two punch 6 formation, and the medial surface of each frame 41 is fitted with a side profile of protuberance respectively.As shown in Figure 3, the working face of patrix 3 is provided with bead 32, bead 32 is for increasing charging resistance, controls the speed of material.Bead 32 is the structure towards lower convexity on the working face of patrix 3, correspondingly on the binder surface of blank holder 4, is provided with the groove 42 coordinated with bead 32, and when draw forming, bead 32 will embed in groove 42.
As shown in Figure 3, bead 32 is along the enclosed construction that the profile of the punch mouth of matrix cavity 31 extends on the working face of patrix 3, the structure of bead 32 roughly in a rectangular loop.As preferably, as shown in Figure 9, the bead 32 on the working face of patrix 3 is provided with two, and two beads 32 are closed structure, and wherein the bead 32 of inner side is between the punch mouth and the bead 32 in outside of matrix cavity 31.
This automobile B-pillar inner plate stretching die is on the basis of computer simulation model, adopts numerical control device processing, the working face of punch and matrix is reached " minute surface ", bead 32 on processing patrix 3, the bead 32 on patrix 3 arranges two, ensures that drawn component has enough percentage elongation.Therefore during draw forming, punch 6 is large with flitch contact surface, charging drag uniform between blank holder 4 and patrix 3, thus ensures that punch 6 can enter matrix cavity 31 smoothly, makes bottom and periphery each position charging drag uniform; Improve rigidity and the intensity of B post inner panel, decrease and recover due to elasticity and the defect such as concave surface, pinch plane, lax and ripple that produces, the formability of B post inner panel can reach best simultaneously.
As shown in Figure 9, be spaced a distance between two beads 32 on patrix 3, the height being positioned at the bead 32 of inner side is greater than the height of the bead 32 being positioned at outside, to adapt to the change of pressure-plate-force.
As shown in Figure 9, the section configuration of the bead 32 on patrix 3 is semicircle, and the bead 32 of formation is semicircle muscle.
As shown in Figure 7, there is at the two ends of the length direction of blank holder 4 guide pad 43 respectively, guide pad 43 is arranged on the short frame 41 of blank holder 4 two ends length, and guide pad 43 is positioned at the center position of frame 41 width, the two ends of corresponding patrix 3 length direction have first chute 34 allowing the guide pad 43 of blank holder 4 one end insert respectively.As preferably, the shape of guide pad 43 is rectangle, corresponding first chute 34 is also rectangular channel, two relative sides of guide pad 43 are provided with the first guide plate 44, first guide plate 44 contacts for the inner surface that two with the first chute 34 are relative, the effect of guiding can be played on the one hand, patrix 3 can be avoided directly directly to contact with blank holder 4 on the other hand, reduce the wearing and tearing of patrix 3 and blank holder 4.First guide plate 44 is arranged on guide pad 43 by bolt, is convenient for changing.
As shown in Figure 2, there is at the two ends of the width of patrix 3 length of the second chute 35, second chute 35 that allows the long frame 41 of two length of blank holder 4 insert respectively and be greater than the length of the first chute 34.The shape of frame 41 is rectangle, corresponding second chute 35 is also rectangular channel, the second guide plate 45 is provided with at the two ends of the length direction of frame 41, second guide plate 45 contacts for the inner surface that two with the second chute 35 are relative, the effect of guiding can be played on the one hand to blank holder 4, the frame 41 of blank holder 4 can be avoided directly directly to contact with lower bolster 5 on the other hand, reduce the wearing and tearing of blank holder 4 and patrix 3 further.Second guide plate 45 is arranged on frame 41 by bolt, is convenient for changing.
This stretching die is when to Sheet Metals Under Tensile Stresses, patrix 3 will press down, guide pad 43 and the first chute 34 match, frame 41 and the second chute 35 match, guarantee the guiding accuracy of patrix 3 and blank holder 4 moving linearly, thus the forming quality of B post inner panel can be improved, improve the forming property of B post inner panel further.
As shown in Figure 2, patrix 3 is arranged the first chute 34 and the second chute 35, be formed with a vertical traveller 37 respectively at four angles place, traveller 37 inserts between guide pad 43 end and frame 41 end, contacts with the second guide plate 45 with the first guide plate 44.
As shown in Figure 4, each frame 41 of blank holder 4 is provided with the locator 1 for positioning plate, locator 1 is vertically arrange, and the structure of locator 1 as shown in Figure 10.Because the height of locator 1 is higher, corresponding be provided with on patrix 3 dodge locator 1 dodge hole 33, dodging hole 33 is the through hole vertically running through patrix 3.In the present embodiment, locator 1 is provided with eight altogether, and each frame 41 is respectively equipped with two, dodges hole 33 accordingly and is also provided with eight.
As shown in Figure 1 and Figure 4; blank holder 4 is 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 fixedly connected with lower bolster 5; its upper end is through the circular hole arranged bottom blank holder 4; when blank holder 4 is up, this breaker bolt 2 can play safeguard protection effect.
Below by reference to the accompanying drawings the utility model is exemplarily described.Obviously, the utility model specific implementation is not subject to the restrictions described above.As long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; Or without improvement, above-mentioned design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model.
Claims (10)
1. an automobile B-pillar inner plate stretching die, it is characterized in that: comprise patrix, blank holder, lower bolster and be located at punch on lower bolster and identical with automobile B-pillar inner plate shape, and punch is provided with two, the working face of patrix is provided with the matrix cavity matched with two punch, between two punch, the position of corresponding plate garbage area is provided with puncture knife, and the inwall of matrix cavity is provided with the upper holding tank holding puncture knife.
2. automobile B-pillar inner plate stretching die according to claim 1, is characterized in that: described two punch are arranged along lower bolster width on described lower bolster, and are symmetrical.
3. automobile B-pillar inner plate stretching die according to claim 1 and 2, is characterized in that: described two punch link into an integrated entity structure, and described puncture knife is located at the join domain between two punch.
4. automobile B-pillar inner plate stretching die according to claim 3, is characterized in that: described puncture knife is provided with two altogether, and two puncture knifes are linearly arranged along the length direction of stretching die.
5. automobile B-pillar inner plate stretching die according to claim 4, is characterized in that: described join domain is provided with the lower holding tank holding described puncture knife.
6. automobile B-pillar inner plate stretching die according to claim 5, is characterized in that: described puncture knife is pointed puncture knife.
7. automobile B-pillar inner plate stretching die according to claim 6, is characterized in that: described blank holder two ends have guide pad, and the two ends of described patrix have the first chute allowing guide pad insert.
8. automobile B-pillar inner plate stretching die according to claim 7, is characterized in that: the other two ends of described patrix have the second chute allowing two of described blank holder relative frames insert.
9. automobile B-pillar inner plate stretching die according to claim 8, is characterized in that: described blank holder is vertically provided with the locator for positioning plate.
10. automobile B-pillar inner plate stretching die according to claim 9, is characterized in that: described blank holder is slidably connected by breaker bolt and described lower bolster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669816.9U CN204234583U (en) | 2014-11-11 | 2014-11-11 | A kind of automobile B-pillar inner plate stretching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420669816.9U CN204234583U (en) | 2014-11-11 | 2014-11-11 | A kind of automobile B-pillar inner plate stretching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204234583U true CN204234583U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420669816.9U Expired - Fee Related CN204234583U (en) | 2014-11-11 | 2014-11-11 | A kind of automobile B-pillar inner plate stretching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204234583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136474A (en) * | 2015-09-28 | 2018-06-08 | 新日铁住金株式会社 | Utilize the cutting off processing method of stamping die |
-
2014
- 2014-11-11 CN CN201420669816.9U patent/CN204234583U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108136474A (en) * | 2015-09-28 | 2018-06-08 | 新日铁住金株式会社 | Utilize the cutting off processing method of stamping die |
| CN108136474B (en) * | 2015-09-28 | 2019-12-06 | 日本制铁株式会社 | Cutting method using press die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20151111 |
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| EXPY | Termination of patent right or utility model |