CN102728740B - Pawl jacking device and mould thereof - Google Patents
Pawl jacking device and mould thereof Download PDFInfo
- Publication number
- CN102728740B CN102728740B CN201210187134.XA CN201210187134A CN102728740B CN 102728740 B CN102728740 B CN 102728740B CN 201210187134 A CN201210187134 A CN 201210187134A CN 102728740 B CN102728740 B CN 102728740B
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- Prior art keywords
- ratchet
- guide pin
- pin bushing
- ejector
- mounting blocks
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- 239000000463 material Substances 0.000 claims description 74
- 238000009434 installation Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 239000003607 modifier Substances 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to a pawl jacking device and a mould thereof. The pawl jacking device comprises an upper jacking mechanism and a lower stretching mechanism, wherein the upper jacking mechanism is fixedly connected with the lower stretching mechanism through a fixing plate (9); the upper jacking mechanism comprises a driving plate (3), a material-retreating pawl (4), a jacking pin (6), a first spring (7) and a mounting block (8); the material-retreating pawl (4) is rotatably connected in a U-shaped groove of the mounting block (8) through a rotating pin (5); the jacking pin (6) and the first spring (7) are arranged in a jacking pin hole (81) at the U-shaped bottom of the mounting block (8) in turn; a lateral force is applied to the material-retreating pawl (4) by the jacking pin (6) and the first spring (7) all the time, so that the material-retreating pawl (4) is in contact with a side wall of a convex mould (1); the lower stretching mechanism comprises a fixedly connecting guide sleeve (10) and a fixedly mounting guide sleeve (13); a second spring (12) is arranged at the bottom of an inner cavity of the fixedly mounting guide sleeve (13); and the lower part of the fixedly connecting guide sleeve (10) is inserted into the fixedly mounting guide sleeve (13).
Description
Technical field
The invention belongs to cold punching die technical field of structures, be specifically related to a kind of ratchet ejector and mould thereof.
Background technology
Current automobile exterior panel part flanging die adopts the elastic scraper of standard usually, and its effect realizes along product flange height direction liftout the effect that product is separated with die ontology.This elastic scraper ejection block and die ontology when die assembly are fitted and are realized liftout function, after product enters batch production state, the ejection block of this elastic scraper and punch produce rub, long term accumulation causes ejection block and punch product produces gap, during liftout, ejection block and product flange part produce and extrude, scratch, even the material returned was lost efficacy, and cannot realize material returned function.Have a strong impact on the flange quality of product, and then affect the bound edge quality of postorder.
Summary of the invention
The present invention devises a kind of ratchet ejector and mould thereof, which solves in prior art and easily produces gap between ejection block and flanging die, thus cause that flange product is extruded, problem that scratch etc. has a strong impact on the flange quality of product.
In order to solve the technical problem of above-mentioned existence, present invention employs following scheme:
A kind of ratchet ejector, comprise top material jacking mechanism and bottom telescoping mechanism, described top material jacking mechanism and described bottom telescoping mechanism are connected, and it is characterized in that: described top material jacking mechanism keep in touch with punch (1) sidewall all the time and in the process moved up jack-up product; The driving force that described bottom telescoping mechanism moves up to described top material jacking mechanism and described product.
Further, described top material jacking mechanism comprises material returned ratchet (4), mounting blocks (8) and hold down gag, described material returned ratchet (4) is rotating to be connected on mounting blocks (8), hold down gag all the time to described material returned ratchet (4) apply a side force make described material returned ratchet (4) with punch (1) sidewall contact and in the process moved up jack-up product.
Further, described mounting blocks (8) is a U-shaped groove structure, and described material returned ratchet (4) is by the rotating U-shaped groove being arranged on mounting blocks (8) of rotating dog (5).
Further, described hold down gag comprises ejector pin (6) and the first spring (7), described first spring (7) and described ejector pin (6) are pressed into knock hole (81) successively, described knock hole (81) is positioned at the U-shaped bottom portion of groove of described mounting blocks (8), and described ejector pin (6) outer end and described material returned ratchet (4) keep in touch.
Further, described hold down gag also comprises screw plug (21) and one or more pad (19), described screw plug (21) is arranged on described mounting blocks (8) outside and is spirally connected with described knock hole (81), described pad (19) is arranged between described screw plug (21) and described mounting blocks (8), and screw plug (21) and pad (19) adjust the size of the first spring (7) thrust.
Further, described top material jacking mechanism also comprises drive block (3), described drive block (3) and described mounting blocks (8) are fastenedly connected by connecting bolt (16), the upper surface of described drive block (3) higher than the upper surface of described mounting blocks (8), the driving force that patrix drive block is moved down to top material jacking mechanism by the described drive block of compressing (3).
Further, described drive block (3) has two pieces, is separately positioned on mounting blocks (8) two sides.
Further, described bottom telescoping mechanism comprise be fixedly connected with guide pin bushing (10) and fixed installation guide pin bushing (13), the intracavity bottom of described fixed installation guide pin bushing (13) is provided with flexible member, is fixedly connected with on guide pin bushing (10) described in described top material jacking mechanism is fixedly connected on; The described bottom being fixedly connected with guide pin bushing (10) to be inserted in described fixed installation guide pin bushing (13) and to be positioned at above described flexible member.
Further, described flexible member is the second spring (12).
Further, described guide pin bushing (10) bottom that is fixedly connected with is connected with the first guide pin bushing wall (131) of described fixed installation guide pin bushing (13) by stop screw (11), described the second guide pin bushing wall (101) being fixedly connected with guide pin bushing (10) bottom has long slide opening (102), described stop screw (11) inserts in long slide opening (102), is fixedly connected with the distance that guide pin bushing (10) moves up and moves down described in described stop screw (11) restriction.
Further, described top material jacking mechanism by fixed head (9) be connected in described in be fixedly connected with on guide pin bushing (10).
Further, described fixed installation guide pin bushing (13) is fixed on counterdie matrix.
Further, described material returned ratchet (4) material of selecting material hard through modifier treatment.
A kind of automobile exterior panel part flanging die, is characterized in that: be provided with above-mentioned arbitrary described ratchet ejector.
This ratchet ejector and mould thereof have following beneficial effect:
(1) ratchet ejector of the present invention and mould thereof provide the side direction thrust of material returned ratchet, material returned ratchet is made to be in fit-state with the sidewall of flanging die all the time, avoid the risk that material jacking mechanism and flanging die produce gap, thus evaded that flange product is extruded, the scratch even appearance of the defect such as material returned inefficacy.
(2) ratchet ejector of the present invention and mould thereof utilize ejector pin and spring to provide side direction thrust for material returned ratchet, reduce the assembly difficulty of whole mechanism and the requirement to assembly precision, mechanism's stable and reliable operation.
(3) utilize screw plug and pad to regulate ejector pin and spring to the side direction thrust of material returned ratchet in the present invention, structure be simple, use flexibly, dependable performance, with low cost.
(4) material that in the present invention, material returned ratchet selects material harder through modifier treatment, the hardness and the wearability that add ratchet make the overall durability of mechanism be strengthened, mechanism runs more stable, reliable.
(5) ratchet ejector of the present invention and mold integral is easy to use, dependable performance and cost low, be easy to promote.
Accompanying drawing explanation
Fig. 1: the structural representation of ratchet ejector of the present invention;
Fig. 2: front view during ratchet ejector lower dead center of the present invention;
Fig. 3: top view during ratchet ejector lower dead center of the present invention;
Fig. 4: structural representation during ratchet ejector top dead centre of the present invention;
A place partial enlarged drawing in Fig. 5: Fig. 4;
Fig. 6: the structural representation of material returned ratchet in the present invention;
Fig. 7: the structural representation of mounting blocks in the present invention;
Fig. 8: the rearview of mounting blocks in the present invention.
Description of reference numerals:
1-punch; 2-product; 3-drive plate; 4-material returned ratchet; 5-rotating dog; 6-ejector pin; 7-the first spring; 8-mounting blocks; 81-knock hole; 82-pin-and-hole; 83-the first connecting hole; 84-the second connecting hole; 9-fixed head; 10-be fixedly connected with guide pin bushing; 101-the second guide pin bushing wall; 102-long slide opening; 11-stop screw; 12-the second spring; 13-fixed installation guide pin bushing; 131-the first guide pin bushing wall; 14-the first screw; 15-pin; 16-connecting bolt; 17-construction bolt; 18-the second screw; 19-pad; 20-the three screw; 21-screw plug.
Detailed description of the invention
Below in conjunction with accompanying drawing 1 to accompanying drawing 8, the present invention will be further described:
Fig. 1 to Fig. 8 shows a kind of ratchet ejector, is arranged on the side of punch 1; Ratchet ejector comprises top material jacking mechanism and bottom telescoping mechanism.
As shown in Figures 2 to 5, top material jacking mechanism comprises drive plate 3, material returned ratchet 4, rotating dog 5, ejector pin 6, first spring 7 and mounting blocks 8.The structure of mounting blocks 8 as shown in Figure 7 and Figure 8, mounting blocks 8 is U-shaped structures, the knock hole 81 perpendicular to U-shaped bottom is provided with in U-shaped bottom, the front lower portion of U-shaped structure is provided with pin-and-hole 82 coordinate with rotating dog 5, mounting blocks 8 is also provided with the first connecting hole 83 and the second connecting hole 84, first connecting hole 83 and construction bolt 17 cooperating, the second connecting hole 84 and connecting bolt 16 cooperating.Mounting blocks 8 is fastenedly connected by the connecting bolt 16 through the second connecting hole 84 with drive block 3, and drive block 3 has two pieces, lays respectively at the both sides on mounting blocks 8X direction of principal axis; Material returned ratchet 4 is arranged in the U-shaped groove of mounting blocks 8 by rotating dog 5 is rotating, and rotating dog 5 is arranged on mounting blocks 8 by pin-and-hole 82; Ejector pin 6 and the first spring 7 are successively set in the knock hole 81 of the U-shaped bottom of mounting blocks 8, be positioned on the right side of material returned ratchet 4, ejector pin 6 and the first spring 7 apply a side force to material returned ratchet 4 all the time, make material returned ratchet 4 all the time with punch 1 sidewall contact, the size of this side force regulates by the screw plug 21 and pad 19 being arranged on the first spring 7 right-hand member, and pad 19 can be one or more.The structure of material returned ratchet 4 as shown in Figure 6; The material that material returned ratchet 4 selects material harder through modifier treatment, the hardness and the wearability that increase ratchet make the overall durability of mechanism be strengthened, and mechanism runs more stable, reliable.
Bottom telescoping mechanism comprises and is fixedly connected with guide pin bushing 10, second spring 12 and fixed installation guide pin bushing 13, second spring 12 is arranged on fixed installation guide pin bushing 13 intracavity bottom.Top material jacking mechanism is fastenedly connected by two construction bolts 17 and fixed head 9; Fixed head 9 by four the 3rd screws 20 be fixedly connected with transverse plane on guide pin bushing 10 and be fastenedly connected, top entirety is all fixed on and is fixedly connected with on guide pin bushing 10, then fixed installation guide pin bushing 13 is inserted and the top being positioned at the second spring 12 by being fixedly connected with guide pin bushing 10 bottom, be fixedly connected with guide pin bushing 10 bottom to be connected by stop screw 11 with the first guide pin bushing wall 131 of fixed installation guide pin bushing 13, the the second guide pin bushing wall 101 being fixedly connected with guide pin bushing 10 bottom has long slide opening 102, with stop screw 11 cooperating.Last whole ratchet ejector is fixed on flanging lower die matrix by the first screw 14 and pin 15.
During work, the drive block 3 of patrix drive block compressing top material jacking mechanism, top material jacking mechanism drives to be fixedly connected with while guide pin bushing 10 moves downward and compresses the second spring 12, and stop screw 11 restriction is fixedly connected with the stroke that guide pin bushing 10 moves downward; Until die flanging complete mould up time, under the effect of the second spring 12 restoring force, upwards jack-up is fixedly connected with guide pin bushing 10 and promotes top material jacking mechanism and moves upward, the material jacking mechanism material returned ratchet 4 jack-up product 2 that moves upward in top realizes being separated of product 2 and punch 1, and stop screw 11 restriction is fixedly connected with the stroke that guide pin bushing 10 moves upward.
If Fig. 2 is that drive block 3 is in the duty of lower dead center by patrix drive block compressing ratchet ejector, material returned ratchet 4 is fixed on rotating dog 5 and also can rotates around rotating dog 5, ejector pin 6 and the first spring 7 pairs of material returned ratchets 4 apply a side force make material returned ratchet 4 all the time with punch 1 sidewall contact, avoid product 2 and liftout ratchet 4 to there is gap, cause unnecessary article surface defect.
If Fig. 4 is that ratchet ejector is in the duty of top dead centre by patrix drive block compressing ratchet ejector, mould is up, top material jacking mechanism upwards jack-up under the elastic force effect of the second spring 12, the jack-up stroke controlled upwards by stop screw 11 reaches liftout function; In the process that ratchet ejector is up, material returned ratchet 4 keeps in touch with punch 1 sidewall all the time, product 2 jack-up is separated with punch 1, and during arrival top dead centre, the top point of material returned ratchet 4 is lower than plane on the punch 1 of flanging die.Even if the top point of material returned ratchet 4 is higher than plane on the described punch 1 of flanging die, and to act on lower swing to punch 1 in plane at ejector pin 6 and the first spring 7, reset that yet can be good smoothly in the process that mechanism is descending, does not affect the serviceability using this material jacking mechanism.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious realization of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all in protection scope of the present invention without to improve.
Claims (10)
1. a ratchet ejector, comprise top material jacking mechanism and bottom telescoping mechanism, described top material jacking mechanism and described bottom telescoping mechanism are connected, and it is characterized in that: described top material jacking mechanism keep in touch with punch (1) sidewall all the time and in the process moved up jack-up product; The driving force that described bottom telescoping mechanism moves up to described top material jacking mechanism and described product;
Described top material jacking mechanism comprises material returned ratchet (4), mounting blocks (8) and hold down gag, described material returned ratchet (4) is rotating to be connected on mounting blocks (8), hold down gag all the time to described material returned ratchet (4) apply a side force make described material returned ratchet (4) with punch (1) sidewall contact and in the process moved up jack-up product;
Described mounting blocks (8) is a U-shaped groove structure, and described material returned ratchet (4) is by the rotating U-shaped groove being arranged on mounting blocks (8) of rotating dog (5);
Described hold down gag comprises ejector pin (6) and the first spring (7), described first spring (7) and described ejector pin (6) are pressed into knock hole (81) successively, described knock hole (81) is positioned at the U-shaped bottom portion of groove of described mounting blocks (8), and described ejector pin (6) outer end and described material returned ratchet (4) keep in touch;
Described hold down gag also comprises screw plug (21) and one or more pad (19), described screw plug (21) is arranged on described mounting blocks (8) outside and is spirally connected with described knock hole (81), described pad (19) is arranged between described screw plug (21) and described mounting blocks (8), and screw plug (21) and pad (19) adjust the size of the first spring (7) thrust.
2. ratchet ejector according to claim 1, it is characterized in that: described top material jacking mechanism also comprises drive block (3), described drive block (3) and described mounting blocks (8) are fastenedly connected by connecting bolt (16), the upper surface of described drive block (3) higher than the upper surface of described mounting blocks (8), the driving force that patrix drive block is moved down to top material jacking mechanism by the described drive block of compressing (3).
3. ratchet ejector according to claim 2, is characterized in that: described drive block (3) has two pieces, is separately positioned on mounting blocks (8) two sides.
4. according to the arbitrary described ratchet ejector of claims 1 to 3, it is characterized in that: described bottom telescoping mechanism comprise be fixedly connected with guide pin bushing (10) and fixed installation guide pin bushing (13), the intracavity bottom of described fixed installation guide pin bushing (13) is provided with flexible member, is fixedly connected with on guide pin bushing (10) described in described top material jacking mechanism is fixedly connected on; The described bottom being fixedly connected with guide pin bushing (10) to be inserted in described fixed installation guide pin bushing (13) and to be positioned at above described flexible member.
5. ratchet ejector according to claim 4, is characterized in that: described flexible member is the second spring (12).
6. ratchet ejector according to claim 5, it is characterized in that: described in be fixedly connected with guide pin bushing (10) bottom by stop screw (11) and be connected with the first guide pin bushing wall (131) of described fixed installation guide pin bushing (13), described the second guide pin bushing wall (101) being fixedly connected with guide pin bushing (10) bottom has long slide opening (102), described stop screw (11) inserts in long slide opening (102), is fixedly connected with the distance that guide pin bushing (10) moves up and moves down described in described stop screw (11) restriction.
7. the ratchet ejector according to claim 5 or 6, is characterized in that: be fixedly connected with on guide pin bushing (10) described in described top material jacking mechanism is connected in by fixed head (9).
8. ratchet ejector according to claim 7, is characterized in that: described fixed installation guide pin bushing (13) is fixed on counterdie matrix.
9. the ratchet ejector according to claim 1,2,3,5,6 or 8, is characterized in that: the material that described material returned ratchet (4) selects material hard through modifier treatment.
10. an automobile exterior panel part flanging die, is characterized in that: be provided with the arbitrary described ratchet ejector of the claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187134.XA CN102728740B (en) | 2012-06-08 | 2012-06-08 | Pawl jacking device and mould thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210187134.XA CN102728740B (en) | 2012-06-08 | 2012-06-08 | Pawl jacking device and mould thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102728740A CN102728740A (en) | 2012-10-17 |
| CN102728740B true CN102728740B (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210187134.XA Active CN102728740B (en) | 2012-06-08 | 2012-06-08 | Pawl jacking device and mould thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102728740B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103240354B (en) * | 2013-05-29 | 2016-06-29 | 长城汽车股份有限公司 | Flange liftout attachment and flanging and restriking mould |
| CN103586347B (en) * | 2013-11-06 | 2016-03-02 | 苏州工业园区新凯精密五金有限公司 | A kind of ratchet blanking die structure |
| CN112605264B (en) * | 2020-11-30 | 2021-07-20 | 广州中益机械有限公司 | All-around edge covering die structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58209429A (en) * | 1982-05-31 | 1983-12-06 | Nissan Motor Co Ltd | Press die |
| JPH0947821A (en) * | 1995-08-02 | 1997-02-18 | Kanto Auto Works Ltd | Auxiliary work take out device for pressing device |
| CN201702259U (en) * | 2010-04-28 | 2011-01-12 | 柳州广菱模具技术有限公司 | Flanged die with flanged overall ejector |
| CN101947600A (en) * | 2009-12-22 | 2011-01-19 | 浙江吉利汽车有限公司 | Flanging and ejecting device |
| CN201735707U (en) * | 2010-05-27 | 2011-02-09 | 湖南长沙北山汽车模具制造厂 | Mould ejection device |
-
2012
- 2012-06-08 CN CN201210187134.XA patent/CN102728740B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58209429A (en) * | 1982-05-31 | 1983-12-06 | Nissan Motor Co Ltd | Press die |
| JPH0947821A (en) * | 1995-08-02 | 1997-02-18 | Kanto Auto Works Ltd | Auxiliary work take out device for pressing device |
| CN101947600A (en) * | 2009-12-22 | 2011-01-19 | 浙江吉利汽车有限公司 | Flanging and ejecting device |
| CN201702259U (en) * | 2010-04-28 | 2011-01-12 | 柳州广菱模具技术有限公司 | Flanged die with flanged overall ejector |
| CN201735707U (en) * | 2010-05-27 | 2011-02-09 | 湖南长沙北山汽车模具制造厂 | Mould ejection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102728740A (en) | 2012-10-17 |
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