CN203541280U - Pawl blanking die structure - Google Patents
Pawl blanking die structure Download PDFInfo
- Publication number
- CN203541280U CN203541280U CN201320695471.XU CN201320695471U CN203541280U CN 203541280 U CN203541280 U CN 203541280U CN 201320695471 U CN201320695471 U CN 201320695471U CN 203541280 U CN203541280 U CN 203541280U
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- CN
- China
- Prior art keywords
- die
- ratchet
- pawl
- blanking
- die sleeve
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Abstract
The utility model relates to a pawl blanking die structure which comprises a stamping die and a concave die. The concave die comprises a die sleeve, a shrinkage rod alloy die is arranged on the inner side of the upper portion of the die sleeve, a forming cavity is formed in the center of the shrinkage rod alloy die, a scroll is arranged at the bottom of the die sleeve, an upper stamping bar is arranged on the head portion of the stamping die, a pawl seat is arranged on the scroll in the die sleeve, blanking through holes allowing the upper stamping bar to be inserted into and penetrate through are formed in the center of the scroll and the center of the pawl seat, pawl units are arranged between the pawl seat and the shrinkage rod alloy die, each pawl unit comprises a pawl and a spring in the pawl and the die sleeve, and inclined faces are arranged at the positions, close to the shrinkage rod alloy die, of the heads of the pawls. Due to the adoption of the structure, the problem of using a material returning pipe for material returning is solved through the pawl units, the structure of the material returning pipe is not used any more, material returning is facilitated when an ultra-thin pipe-shaped product is machined, labor force and machining time are saved, and the production cost of enterprises is lowered.
Description
Technical field
The utility model relates to a kind of mould structure in machining manufacturing, especially relates to a kind of ratchet blanking die structure.
Background technology
In machining manufacturing, at production pull and stretch, there is end tubular piece product, the tubular piece of ultra-thin wall thickness is produced and be there will be a great problem that is difficult to pull and stretch and cannot exits, particularly when product wall thickness dimension only has 0.3 millimeter, if adopt the mode of material returned pipe to realize blanking, material returned pipe is difficult to processing, only has 0.3 millimeters thick, hardness must reach HRC60-63, and material returned pipe is flimsy, and service life is low, substantially cannot normally produce, after machining, need to carry out in addition material returned operation, cause the cost that dispatches from the factory of artificial and product to increase.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of ratchet blanking die structure that can facilitate the tubular piece material returned of ultra-thin wall thickness.
The technical scheme in the invention for solving the technical problem is: a kind of ratchet blanking die structure, comprise punch die and die, described die comprises die sleeve, die sleeve upper inner is provided with contracting bar alloy mould, contracting bar alloy mould center is provided with die cavity, in die sleeve bottom, be provided with wire tray, described punch die head is provided with upper punch rod, the wire tray of described die sleeve inside is provided with pawl base, described wire tray and the center of pawl base are provided with a blanking through hole that inserts and run through for upper punch rod, between pawl base and contracting bar alloy mould, be provided with ratchet unit, described ratchet unit comprises the spring being provided with between a ratchet and ratchet and die sleeve inwall, the head of ratchet is provided with inclined-plane near the position of contracting bar alloy mould.
Further, for guarantee product in the material returned stressed evenly, at least two described of ratchet unit and being uniformly distributed centered by die sleeve axle core.
Further concrete, described ratchet unit is four.
Further, in order to facilitate product that ratchet compression is retreated, the inclined-plane angle of described ratchet head is at 45 °～60 °.
Further, for convenient, spring is positioned, described ratchet afterbody is provided with one for placing the cavity of spring.
Further, in order to protect upper punch rod surface injury-free and can be good at laminating, described ratchet head is the semi arch concaving.
Further, in order to guarantee that the head of ratchet can not be in contact with one another, the blanking through hole at described pawl base center is provided with an annular boss, on ratchet, is provided with a step with annular boss correspondence position, and annular boss blocks step radial motion.
The beneficial effects of the utility model are: after adopting said structure, by adopting ratchet unit to solve the problem that realizes de-material with material returned pipe, do not re-use material returned tubular construction, at the ultra-thin tubular piece product of processing, facilitate the material returned, save artificial and process time, reduced the production cost of enterprise.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional structure schematic diagram of the utility model ratchet unit;
Fig. 3 is the main TV structure schematic diagram of the utility model ratchet.
In figure: 1, punch die; 2, contracting bar alloy mould; 3, die sleeve; 4, spring; 5, ratchet; 6, pawl base; 7, wire tray; 8, upper punch rod; 9, annular projection; 51, cavity; 52, inclined-plane; 53, step; 54, semi arch.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
A kind of ratchet blanking die structure as shown in Figure 1, comprise punch die 1 and die, described die comprises die sleeve 3, die sleeve 3 upper inner are provided with contracting bar alloy mould 2, contracting bar alloy mould 2 centers are provided with die cavity, in die sleeve 3 bottoms, be provided with wire tray 7, described punch die 1 head is provided with upper punch rod 8, the wire tray 7 of described die sleeve 3 inside is provided with pawl base 6, described wire tray 7 is provided with one for the upper punch rod 8 blanking through holes that insert and run through with the center of pawl base 6, between pawl base 6 and contracting bar alloy mould 2, be provided with ratchet unit, ratchet unit comprises the spring 4 being provided with between a ratchet 5 and ratchet 5 and die sleeve 3 inwalls as shown in Figures 2 and 3, the head of ratchet 5 is provided with inclined-plane 52 near the position of contracting bar alloy mould 2, its inclined-plane 52 angles are at 45 °～60 °, described ratchet unit is four and is uniformly distributed centered by die sleeve 3 axle cores, described ratchet 5 afterbodys are provided with one for placing the cavity 51 of spring 4, described ratchet 5 heads are the semi arch 54 concaving, the blanking through hole at described pawl base 6 centers is provided with an annular boss 9, on ratchet 5, is provided with a step 53 with annular boss 9 correspondence positions, and annular boss 9 blocks step 53 radial motions.
When using, first punch die 1 drives upper punch rod 8 to do matched moulds motion, upper punch rod 8 stretches tubular piece to pass through die cavity, the inclined-plane 52 that the tubular piece of upper punch rod 8 heads promotes ratchet 5 makes ratchet 5 to two lateral movements, ratchet 5 Compress Springs 4 make the space between ratchet 5 can pass through upper punch rod 8 and tubular piece, when upper punch rod 8 puts in place with tubular piece motion, tubular piece is through the space forming between ratchet 5, now, because spring 4 effects are blocked upper punch rod 8 by ratchet 5 along moving radially of upper punch rod 8, punch die 1 drives upper punch rod 8 to make drawback movement, upper punch rod 8 retreats and drives tubular piece to retreat, now, ratchet 5 blocks tubular piece and does not do setback, and upper punch rod 8 continues setback, when upper punch rod 8 falls back on a side of ratchet 5 completely, tubular piece departs from upper punch rod 8, tubular piece is stayed in blanking through hole, again repeating second tubular piece of above-mentioned steps comes in, repeatedly and eject tubular piece above, drop out mould, form and produce.
By present ratchet blanking die structure, front station provides the corresponding wall thickness 1-1.2mm blank of left and right, transfer to this station, utilize the upper punch rod 8 of punch die 1 to head into tubular piece endoporus than the little 0.08-0.15mm of tubular piece endoporus, be the function that the realization that heads into action plays again inner die and endoporus sizing rod, tubular piece outer wall enters resultant metal flow deformation from the die cavity of contracting bar alloy mould 2, and contracting bar becomes required size.
It is emphasized that: be only preferred embodiment of the present utility model above, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. a ratchet blanking die structure, comprise punch die (1) and die, described die comprises die sleeve (3), die sleeve (3) upper inner is provided with contracting bar alloy mould (2), contracting bar alloy mould (2) center is provided with die cavity, in die sleeve (3) bottom, be provided with wire tray (7), it is characterized in that: described punch die (1) head is provided with upper punch rod (8), the inner wire tray (7) of described die sleeve (3) is provided with pawl base (6), described wire tray (7) is provided with a blanking through hole that inserts and run through for upper punch rod (8) with the center of pawl base (6), between pawl base (6) and contracting bar alloy mould (2), be provided with ratchet unit, described ratchet unit comprises the spring (4) being provided with between a ratchet (5) and ratchet (5) and die sleeve (3) inwall, the head of ratchet (5) is provided with inclined-plane (52) near the position of contracting bar alloy mould (2).
2. ratchet blanking die structure according to claim 1, is characterized in that: at least two described of ratchet unit and being uniformly distributed centered by die sleeve (3) axle core.
3. ratchet blanking die structure according to claim 2, is characterized in that: described ratchet unit is four.
4. ratchet blanking die structure according to claim 1, is characterized in that: inclined-plane (52) angle of described ratchet (5) head is at 45 °～60 °.
5. ratchet blanking die structure according to claim 1, is characterized in that: described ratchet (5) afterbody is provided with one for placing the cavity (51) of spring (4).
6. ratchet blanking die structure according to claim 1, is characterized in that: described ratchet (5) head is the semi arch (54) concaving.
7. ratchet blanking die structure according to claim 1, it is characterized in that: the blanking through hole at described pawl base (6) center is provided with an annular boss (9), at ratchet (5), upper and annular boss (9) correspondence position is provided with a step (53), and annular boss (9) blocks step (53) radial motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695471.XU CN203541280U (en) | 2013-11-06 | 2013-11-06 | Pawl blanking die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695471.XU CN203541280U (en) | 2013-11-06 | 2013-11-06 | Pawl blanking die structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203541280U true CN203541280U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320695471.XU Expired - Fee Related CN203541280U (en) | 2013-11-06 | 2013-11-06 | Pawl blanking die structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203541280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586347A (en) * | 2013-11-06 | 2014-02-19 | 苏州工业园区新凯精密五金有限公司 | Detent blanking die structure |
-
2013
- 2013-11-06 CN CN201320695471.XU patent/CN203541280U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103586347A (en) * | 2013-11-06 | 2014-02-19 | 苏州工业园区新凯精密五金有限公司 | Detent blanking die structure |
| 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 |
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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: 20140416 Termination date: 20161106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |