CN108994140B - Deep drawing mechanism - Google Patents

Deep drawing mechanism Download PDF

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Publication number
CN108994140B
CN108994140B CN201811007646.7A CN201811007646A CN108994140B CN 108994140 B CN108994140 B CN 108994140B CN 201811007646 A CN201811007646 A CN 201811007646A CN 108994140 B CN108994140 B CN 108994140B
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CN
China
Prior art keywords
stripping
upper die
deep drawing
deep
assembly
Prior art date
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Active
Application number
CN201811007646.7A
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Chinese (zh)
Other versions
CN108994140A (en
Inventor
吴永丰
陈晓敏
朱纯傲
戴小祥
马驰
任军平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Ruima Precision Industry Group Co ltd
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Suzhou Cheersson Precision Industry Co ltd
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Priority to CN201811007646.7A priority Critical patent/CN108994140B/en
Publication of CN108994140A publication Critical patent/CN108994140A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/22—Deep-drawing with devices for holding the edge of the blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/02—Ejecting devices
    • B21D45/04—Ejecting devices interrelated with motion of tool

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The invention discloses a deep drawing mechanism, which comprises an upper die assembly, a lower die assembly and deep drawing parts, wherein each deep drawing part comprises an upper deep drawing assembly and a lower deep drawing assembly which are respectively arranged in the upper die assembly and the lower die assembly, each upper deep drawing assembly comprises an upper die stripping mechanism arranged in the upper die assembly and a deep drawing ring sleeved on the upper die stripping mechanism and fixed in the upper die assembly, an inner hole of the deep drawing ring is provided with a deep drawing fillet connecting area with arc transition, the inner side wall of the deep drawing ring is sequentially provided with a straight cylindrical forming area, a stripping fillet area which extends outwards in an arc manner, a straight wall area with a diameter larger than that of the forming area, a first fillet connecting area which extends inwards in an arc manner and a stripping ejector rod matching area which extends outwards in an arc manner, so that better deep drawing performance is ensured, the processing technology of a stripping rod is simplified, the service life of the deep drawing ring is prolonged, and the stripping process is more suitable for wide popularization and use.

Description

Deep drawing mechanism
Technical Field
The invention relates to a press riveting device, in particular to a deep drawing mechanism.
Background
In the field of stamping, a continuous drawing die is a common die type, wherein a drawing ring is an indispensable drawing part, how to reasonably design the shape of the drawing ring has important influence on a drawing mechanism, the service life of the drawing ring and stability, a taper angle is generally connected behind a traditional drawing ring forming area, and the drawing ring is unfavorable for the exertion of the material forming performance and the stability of stripping. Therefore, we have devised a new drawing ring structure, and a drawing mechanism corresponding thereto.
Disclosure of Invention
The invention aims to provide a drawing mechanism which simplifies the processing technology of a stripping rod, prolongs the service life of a drawing ring and enables the stripping process to be more stable.
In order to achieve the above purpose, the invention adopts the following technical scheme: the deep drawing mechanism is used for deep drawing a plate into a product with a cylindrical groove, the groove is cylindrical and has a certain depth and an inner diameter, the deep drawing mechanism comprises an upper die assembly, a lower die assembly and deep drawing parts arranged in the upper die assembly and the lower die assembly, each deep drawing part comprises an upper deep drawing assembly and a lower deep drawing assembly which are respectively arranged in the upper die assembly and the lower die assembly, each upper deep drawing assembly comprises an upper die stripping mechanism arranged in the upper die assembly and a deep drawing ring sleeved on the upper die stripping mechanism and fixed in the upper die assembly, a deep drawing fillet connecting region with arc transition is arranged between the lower end surface of the deep drawing ring and the inner side wall of the deep drawing ring, the inner side wall of the deep drawing ring is sequentially a straight cylindrical forming region, a stripping fillet region extending outwards in arc, a region with the diameter larger than that of the forming region, a first connecting region extending inwards in arc shape, and a stripping ejector rod matching region extending outwards in arc shape; the lower drawing assembly comprises a lower die stripping mechanism at least partially positioned in the lower die assembly and a drawing punch penetrating through the lower die stripping mechanism.
Preferably, the upper die stripping mechanism comprises an upper die stripping spring fixed in the upper die assembly, an upper die spring switching block connected in the upper die assembly in a vertical sliding manner and fixedly connected with the upper die stripping spring, and a stripping rod fixed below the upper die spring switching block and positioned in the upper die assembly.
Preferably, the upper drawing assembly further comprises a drawing ring fixing block and a drawing ring fixing bolt, wherein the drawing ring fixing block and the drawing ring fixing bolt are fixed in the upper die assembly and used for fixing the drawing ring in the upper die assembly.
Further, the lower die stripping mechanism comprises a stripping rod, and the stripping rod is excessively matched with the stripping ejector rod matching area.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the invention is similar to the traditional deep drawing mechanism through the basic structure of the multi-pass deep drawing part, and the deep drawing part mainly comprises a stripping spring, a stripping rod, a deep drawing ring, a stripping block, a deep drawing punch, a push rod and other auxiliary structural parts.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a drawing die;
FIG. 2 is a schematic view of a first drawing part mold closing state structure;
FIG. 3 is a schematic view of a first drawing part in a die-open state;
FIG. 4 is a schematic view of a second drawing part mold closing state structure;
FIG. 5 is a schematic view of a second drawing part in a mold opening state;
FIG. 6 is a schematic view of a third drawing part mold closing state structure;
FIG. 7 is a schematic view of a third drawing part die-opening state structure;
FIG. 8 is a schematic view of a fourth drawing section die-closing state;
FIG. 9 is a schematic view of a fourth drawing part die-opening state structure;
FIG. 10 is a schematic view of a fifth drawing section die-closing state;
FIG. 11 is a schematic view of a fifth drawing part die-opening state structure;
FIG. 12 is a schematic view showing a sixth drawing section in a closed state;
FIG. 13 is a schematic view showing a sixth drawing portion in a mold-open state;
Fig. 14 is a schematic view of a novel drawing ring structure.
In the following figures: 1. a first drawing section; 1-1, a first upper die stripping spring; 1-2, a first upper die spring adapter block; 1-3, a first stripping rod; 1-4, a first deep drawing ring; 1-5, a first drawing ring fixing block; 1-6, fixing bolts of the first deep drawing ring; 1-7, a first stripping block; 1-8, a first stripping block limiting gasket; 1-9, a first stripping block limit bolt; 1-10, a first deep drawing punch; 1-11, a first deep drawing punch mounting block; 1-12, a first cushion block; 1-13, a first ejector rod; 1-14, a first lower die spring adapter block; 1-15, a first lower die stripping spring; 2. a second drawing section; 2-1, a second upper die stripping spring; 2-2, a second upper die spring switching block; 2-3, a second stripping rod; 2-4, a second deep drawing ring cushion block; 2-5, a second deep drawing ring; 2-6, a second drawing ring fixing block; 2-7, fixing bolts by the second deep drawing ring; 2-8, a second stripping block limiting gasket; 2-9, a second stripping block limit bolt; 2-10, a second stripping block; 2-11, a second deep drawing punch; 2-12, a second deep drawing punch mounting block; 2-13, a second cushion block; 2-14, a second ejector rod; 2-15, a second lower die spring adapter block; 2-16, a second lower die stripping spring; 3. a third drawing section; 3-1, a third upper die stripping spring; 3-2, a third upper die spring switching block; 3-3, a third stripping rod; 3-4, a third deep drawing ring cushion block; 3-5, a third deep drawing ring; 3-5-1, deep drawing the fillet area; 3-5-2, forming area; 3-5-3, a material removing fillet area; 3-5-4, straight wall region; 3-5-5, a first rounded corner junction; 3-5-6, a stripping ejector rod matching area; 3-5-7, a second rounded corner junction; 3-6, a third drawing ring fixing block; 3-7, fixing bolts by the third deep drawing ring; 3-8, a third stripping block limiting gasket; 3-9, a third stripping block limit bolt; 3-10, a third stripping block; 3-11, a third deep drawing punch; 3-12, a third deep drawing punch mounting block; 3-13, a third cushion block; 3-14, a third ejector rod; 3-15, a third lower die spring adapter block; 3-16, a third lower die stripping spring; 4. a fourth drawing section; 4-1, a fourth upper die stripping spring; 4-2, a fourth upper die spring adapter block; 4-3, a fourth stripping rod; 4-4, a fourth deep drawing ring cushion block; 4-5, a fourth deep drawing ring; 4-6, a fourth drawing ring fixing block; 4-7, fixing bolts by a fourth deep drawing ring; 4-8, a fourth stripping block limiting gasket; 4-9, a fourth stripping block limit bolt; 4-10, fourth stripping block; 4-11, a fourth deep drawing punch; 4-12, a fourth deep drawing punch mounting block; 4-13, a fourth cushion block; 4-14, a fourth ejector rod; 4-15, a fourth lower die spring adapter block; 4-16, a fourth lower die stripping spring; 5. a fifth drawing section; 5-1, a fifth upper die stripping spring; 5-2, a fifth upper die spring adapter block; 5-3, a fifth stripping rod; 5-4, a fifth deep drawing ring cushion block; 5-5, a fifth drawing ring; 5-6, a fifth drawing ring fixing block; 5-7, fixing bolts by a fifth deep drawing ring; 5-8, a fifth stripping block limiting gasket; 5-9, a fifth stripping block limit bolt; 5-10, fifth stripping block; 5-11, a fifth deep drawing punch; 5-12, a fifth deep drawing punch mounting block; 5-13, a fifth cushion block; 5-14, a fifth ejector rod; 5-15, a fifth lower die spring adapter block; 5-16, a fifth lower die stripping spring; 6. a sixth drawing section; 6-1, a sixth upper die stripping spring; 6-2, a sixth upper die spring switching block; 6-3, a sixth stripping rod; 6-4, a sixth deep drawing ring cushion block; 6-5, a sixth deep drawing ring; 6-6, a sixth drawing ring fixing block; 6-7, fixing bolts by a sixth deep drawing ring; 6-8, a sixth stripping block limiting gasket; 6-9, sixth stripping block limit bolts; 6-10, a sixth stripping block; 6-11, a sixth deep drawing punch; 6-12, a sixth deep drawing punch mounting block; 6-13, a sixth cushion block; 6-14, a sixth ejector rod; 6-15, a sixth lower die spring adapter block; 6-16, a sixth lower die stripping spring; 7. an upper cover plate; 8. an upper die holder; 9. an upper backing plate; 10. an upper clamping plate; 11. an upper backboard; 12. a stripper plate; 13. a material belt; 14. a lower template; 15. a lower backing plate; 16. a lower back plate; 17. a lower die holder; 18. a mold foot; 19. and a lower supporting plate.
Detailed Description
The invention will be further described with reference to examples shown in the drawings.
The deep drawing mechanism is used for deep drawing a plate into a product with a cylindrical groove, the groove is columnar and has a certain depth and an inner diameter, the deep drawing mechanism comprises an upper die assembly, a lower die assembly and deep drawing parts arranged in the upper die assembly and the lower die assembly, each deep drawing part comprises an upper deep drawing assembly and a lower deep drawing assembly which are respectively arranged in the upper die assembly and the lower die assembly, each upper deep drawing assembly comprises an upper die stripping mechanism arranged in the upper die assembly and a deep drawing ring sleeved on the upper die stripping mechanism and fixed in the upper die assembly, a deep drawing fillet connecting region with arc transition is arranged between the lower end face of the deep drawing ring and the inner side wall of the deep drawing ring, and the inner side wall of the deep drawing ring is sequentially a straight cylindrical forming region, a stripping fillet region with arc extension outwards, a stripping ejector rod matching region with the diameter larger than the diameter of the forming region, a first straight wall connecting region with arc extension inwards, and a stripping ejector rod matching region with arc extension outwards; the lower drawing assembly comprises a lower die stripping mechanism at least partially positioned in the lower die assembly and a drawing punch penetrating through the lower die stripping mechanism. The upper die stripping mechanism comprises an upper die stripping spring fixed in the upper die assembly, an upper die spring switching block which is connected in the upper die assembly in a vertical sliding way and fixedly connected with the upper die stripping spring, and a stripping rod fixed below the upper die spring switching block and positioned in the upper die assembly. The upper drawing assembly further comprises a drawing ring fixing block and a drawing ring fixing bolt, wherein the drawing ring fixing block is fixed in the upper die assembly and used for fixing the drawing ring in the upper die assembly. The lower die stripping mechanism comprises a stripping rod, and the stripping rod is excessively matched with the stripping ejector rod matching area.
The upper die assembly comprises an upper cover plate, an upper die holder, an upper base plate, an upper clamping plate, an upper back plate and a stripper plate which are fixedly connected from top to bottom. The lower die assembly comprises a lower die plate, a lower backing plate, a lower back plate, a lower die holder, die feet and a lower supporting plate which are fixedly connected from top to bottom.
In this embodiment, there are six deep-drawing portions, namely, a first deep-drawing portion, a second deep-drawing portion, a third deep-drawing portion, a fourth deep-drawing portion, a fifth deep-drawing portion, and a sixth deep-drawing portion, where the first deep-drawing portion is different from the other deep-drawing portions in that it has two lower die stripper springs and fewer deep-ring pads, and the differences between the deep-drawing rings, the deep-drawing punches, the deep-drawing rings, and the related parts of the first deep-drawing portion, the second deep-drawing portion, the third deep-drawing portion, the fourth deep-drawing portion, the fifth deep-drawing portion, and the sixth deep-drawing portion are only gradually reduced in size, and will not be further described herein.
In the stamping production process, the upper die descends under the action of a punch press, the stripper plate 12 firstly contacts the third stripper block 3-10, the third stripper block 3-10 is pressed into the lower die plate 14 due to the fact that the strength of the third upper stripper spring 3-1 is far greater than that of the third lower die stripper spring 3-16, meanwhile, force is transmitted to the third ejector rod 3-14 and the third lower die spring switching block 3-15, the third lower die stripper spring 3-16 is stressed and compressed, the third deep-drawing punch 3-11 exposes the third stripper block 3-10, along with the descending of the upper die, the third product 13-3 is sleeved into the third deep-drawing punch 3-11, when the stripper plate 12, the material belt 13 and the lower die plate 14 are completely closed, the stripper plate 13 and the upper back plate 11 do not move relative to the lower die, the third deep-drawing ring 3-5 fixed in the upper die plate 10 continues to move downwards and contact the third product 13-3, deep-drawing forming is started, the third product 13-3 sequentially enters the deep-5 and the third die spring 3-5-3-2, and simultaneously, the third product 13-3 is transferred to the third stripper spring 3-1 is subjected to deep-drawing forming, and the third product is compressed and the third stripper spring 3-1 is subjected to die-contact with the third stripper spring 3-2. When the upper die moves to a bottom dead center, the upper die moves upwards, at the beginning stage, under the action of a stripper plate spring, the stripper plate 12, the material belt 13 and the lower die plate 14 are kept completely closed, the third upper die stripper spring 3-1 releases elastic force to push the third stripper rod 3-3 to push a product out of the third deep drawing ring 3-5, and it is required to say that the third deep drawing ring 3-5 is provided with a deep drawing round corner region 3-5-1, a forming region 3-5-2, a stripper round corner region 3-5-3, a straight wall region 3-5-4, a first round corner connecting region 3-5-5, a stripper ejector rod matching region 3-5-6 and a second round corner connecting region 3-5-7, and the deep drawing round corner region 3-5-1 and the forming region 3-5-2 mainly play roles in facilitating stripping, and meanwhile, the third stripper rod 3-3 and the stripper ejector rod matching region 3-5-6 are in transition fit, so that the stability of the product during stripping can be well ensured. And then the third product 13-3 is separated from the third drawing ring 3-5, the stripper plate 12 is separated from the material belt 13 along with the continuous ascending of the upper die, the third lower die stripper spring 3-16 starts to release elastic force to push the third ejector rod 3-14 to ascend, and further the third stripper block 3-10 is pushed to ascend, the third stripper block 3-10 contacts with the flange surface of the third product 13-3 to separate the product from the third drawing punch 3-11, and the drawing forming is finished.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims (2)

1. The utility model provides a deep-drawing mechanism, its is used for drawing panel into the product that has the cylindricality recess, and the recess is the column, and it has certain degree of depth and internal diameter, deep-drawing mechanism includes last mould subassembly, lower mould subassembly and locates deep-drawing portion in last mould subassembly and the lower mould subassembly, every deep-drawing portion is including locating respectively go up the upper drawing subassembly and the lower deep-drawing subassembly in mould subassembly, its characterized in that: each upper drawing assembly comprises an upper die stripping mechanism arranged in the upper die assembly and a drawing ring sleeved on the upper die stripping mechanism and fixed in the upper die assembly, wherein a drawing fillet connecting region with arc transition is arranged between the lower end face of the drawing ring and the inner side wall of the drawing ring, the inner side wall of the drawing fillet connecting region is a straight cylindrical forming region, a stripping fillet region extending outwards in an arc manner, a straight wall region with diameter larger than that of the forming region, a first fillet connecting region extending inwards in an arc manner and a stripping ejector rod matching region extending outwards in an arc manner from the drawing fillet connecting region upwards; the lower drawing assembly comprises a lower die stripping mechanism at least partially positioned in the lower die assembly and a drawing punch penetrating through the lower die stripping mechanism; the upper die stripping mechanism comprises an upper die stripping spring fixed in the upper die assembly, an upper die spring switching block which is connected in the upper die assembly in a vertical sliding way and fixedly connected with the upper die stripping spring, and a stripping rod fixed below the upper die spring switching block and positioned in the upper die assembly; the lower die stripping mechanism comprises a stripping rod, and the stripping rod is excessively matched with the stripping ejector rod matching area.
2. The deep drawing mechanism according to claim 1, wherein: the upper drawing assembly further comprises a drawing ring fixing block and a drawing ring fixing bolt, wherein the drawing ring fixing block is fixed in the upper die assembly and used for fixing the drawing ring in the upper die assembly.
CN201811007646.7A 2018-08-31 2018-08-31 Deep drawing mechanism Active CN108994140B (en)

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CN108994140A CN108994140A (en) 2018-12-14
CN108994140B true CN108994140B (en) 2024-04-19

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CN206550221U (en) * 2017-03-13 2017-10-13 泰兴市济源电气有限公司 A kind of Thin-wall battery case stretch die lamps structure
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