CN202781313U - Thin material blanking die with lower convex die - Google Patents
Thin material blanking die with lower convex die Download PDFInfo
- Publication number
- CN202781313U CN202781313U CN 201220345066 CN201220345066U CN202781313U CN 202781313 U CN202781313 U CN 202781313U CN 201220345066 CN201220345066 CN 201220345066 CN 201220345066 U CN201220345066 U CN 201220345066U CN 202781313 U CN202781313 U CN 202781313U
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- CN
- China
- Prior art keywords
- die
- punch
- rubber
- cushion
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a thin material blanking die with a lower convex die and relates to a punching die. The thin material blanking die comprises an upper die base, a lower die base and a die shank. The convex die is arranged on the upper surface of the lower die base, a containing frame which is a hollow cylinder with two ends open is arranged on the lower surface of the upper die base, a rubber die cushion is arranged in a cavity of the containing frame, and two forming rods are arranged between the rubber die cushion and the upper die base and symmetrically arranged close to the left and right of the inner wall of the containing frame. The lower surface of the rubber die cushion is flushed to the lower surface of the containing frame, and a triangular reinforcing rib is arranged on the outer surface of the side wall of the containing frame. The thin material blanking die with the lower convex die is simple in manufacturing process and low in cost, workpieces can be kept smooth constantly during punching, burrs are reduced, turned edges are avoided, and product quality is improved.
Description
Technical field
The utility model relates to a kind of diel, relate in particular to a kind of punch under thin material blanking die.
Background technology
In punching production, when the thin material of stamping-out (expecting metal material below the thick 0.3mm and nonmetallic materials such as polyester film, woollen blanket, leather etc.), the blade clearance of these materials all below 0.01mm, is commonly referred to the gapless punching press.Require working portion dimensional accuracy and the surface quality of stamping die high, difficulty is very large when making mould like this, and the cost of mfg. moulding die is high, and the workpiece of going out when carrying out the gapless punching press with existing stamping die can be with larger burr, even edge-curl phenomenon appears, affect the quality of product.
Summary of the invention
For the problem that above-mentioned prior art exists, the utility model provide a kind of punch under thin material blanking die, its manufacture craft is simple, die cost is low, and makes workpiece be in all the time formation state in punching course, reduces burr, avoid edge-curl phenomenon, improved the quality of product.
The technical solution of the utility model is: a kind of punch under thin material blanking die, comprise upper bolster, die shoe and die shank, the die shoe upper surface is provided with punch, described upper bolster lower surface is provided with the appearance frame, described appearance frame is the cylindrical shell of both ends open, hollow, is provided with the rubber die-cushion in the cavity of appearance frame, is provided with the rod that is shaped between rubber die-cushion and the upper bolster, described shaping rod is two, is symmetrical set near the inwall that holds frame; Rubber die-cushion lower surface flushes with the lower surface that holds frame; Hold frame sidewall outer surface and be provided with the triangle ribs.
As preferably, punch is fixedly connected on the die shoe upper surface by punch retainer, is socketed with stripper on the punch, and stripper is flexibly connected by unloading bolt and die shoe, and unloading bolt is socketed with rubber blanket outward.
As preferably, upper bolster and die shoe adopt the Q235 steel to make, and punch is up-small and down-big stairstepping, and upper bolster is provided with backing plate with holding between the frame, and rubber die-cushion employing polyurethane rubber is made.
The beneficial effects of the utility model are: the utility model adopts and holds frame and be arranged on the die that the rubber die-cushion that holds in the frame has replaced traditional stamping die, reduced die manufacturing cost, polyurethane rubber is a kind of elastomer, in punching course, hold in the frame and be in closed state, thereby the rubber die-cushion has liquid static pressure after stressed, and namely the suffered unit pressure of rubber die-cushion all directions equates.When the descending drive die shank of press ram downward, punch, rubber die-cushion and stripper compress the material that is rushed, the rubber die-cushion is subject to the pressure of punch, force and rushed material along punch and hold the stretching that bends of in-out-snap outline perimeter, and produce impression at punch and the cutting edge place that holds frame, descending with upper bolster, when being rushed rubber pressure that material is subject to constantly increasing and surpassing the material shearing strength, material cracks at the cutting edge place, and workpiece separates with periphery material.In whole punching course, workpiece is in formation state all the time, therefore can not produce burr and crimping, has improved the quality of product.When backing plate can be avoided punching press to the damage of upper bolster.The triangle ribs has improved the intensity of holding frame, has avoided the horizontal play of appearance frame, and is very convenient and practical.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As a kind of embodiment of the present utility model, as shown in Figure 1, a kind of punch under thin material blanking die, comprise upper bolster 6, die shoe 1 and die shank 8, in the present embodiment, as preferably, described upper bolster 6 and die shoe 1 adopt the Q235 steel to make good combination property, long service life.Die shoe 1 upper surface is provided with punch 4, and described upper bolster 6 lower surfaces are provided with and hold frame 10, and described appearance frame 10 is the cylindrical shell of both ends open, hollow, in the present embodiment, holds frame 10 and adopts the Q235 steel to make.Hold in the cavity of frame 10 being provided with rubber die-cushion 5, be provided with the rod 9 that is shaped between rubber die-cushion 5 and the upper bolster 6, described shapings rod 9 is two, be symmetrical set near the inwall that holds frame 10, when shaping excellent 9 can increase punching press to the pressure of workpiece.Rubber die-cushion 5 lower surfaces flush with the lower surface that holds frame 10; Hold frame 10 sidewall outer surfaces and be provided with triangle ribs 11, triangle ribs 11 has improved the intensity of holding frame 10, has avoided appearance frame 10 horizontal plaies.
In the present embodiment, as preferably, punch 4 is fixedly connected on die shoe 1 upper surface by punch retainer 13, is socketed with stripper 12 on the punch 4, and stripper 12 is flexibly connected by unloading bolt 2 and die shoe 1, the unloading bolt 2 outer rubber blankets 3 that are socketed with.When rubber blanket 3 does not compress, the upper surface flush of the upper surface of stripper 12 and punch 4 or exceed punch 4 upper surface 2-3mm.When punch forming, stripper 12 can workpiece pressing, guarantees the positioning accuracy of workpiece, avoids workpiece wrinkling, and after punching press was finished, stripper 12 helped punch 4 dischargings under the effect of rubber blanket 3.
In the present embodiment, as preferably, punch 4 is up-small and down-big stairstepping, has improved the intensity of punch 4.Be provided with backing plate 7 between upper bolster 6 and the appearance frame 10, backing plate 7 can prevent the direct impact to upper bolster 6, is shaped rod 9 between rubber die-cushion 5 and backing plate 7.Rubber die-cushion 5 adopts polyurethane rubber to make.
The above only is a kind of embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and obvious mode of texturing etc., all should be included within the protection domain of the present utility model.
Claims (3)
- A punch under thin material blanking die, comprise upper bolster, die shoe and die shank, the die shoe upper surface is provided with punch, it is characterized in that: described upper bolster lower surface is provided with the appearance frame, described appearance frame is the cylindrical shell of both ends open, hollow, is provided with the rubber die-cushion in the cavity of appearance frame, is provided with the rod that is shaped between rubber die-cushion and the upper bolster, described shaping rod is two, is symmetrical set near the inwall that holds frame; Rubber die-cushion lower surface flushes with the lower surface that holds frame; Hold frame sidewall outer surface and be provided with the triangle ribs.
- Punch according to claim 1 under thin material blanking die, it is characterized in that: punch is fixedly connected on the die shoe upper surface by punch retainer, be socketed with stripper on the punch, stripper is flexibly connected by unloading bolt and die shoe, and unloading bolt is socketed with rubber blanket outward.
- Punch according to claim 1 and 2 under thin material blanking die, it is characterized in that: upper bolster and die shoe adopt the Q235 steel to make, punch is up-small and down-big stairstepping, is provided with backing plate between upper bolster and the appearance frame, and the rubber die-cushion adopts polyurethane rubber to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345066 CN202781313U (en) | 2012-07-17 | 2012-07-17 | Thin material blanking die with lower convex die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345066 CN202781313U (en) | 2012-07-17 | 2012-07-17 | Thin material blanking die with lower convex die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202781313U true CN202781313U (en) | 2013-03-13 |
Family
ID=47808645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220345066 Expired - Fee Related CN202781313U (en) | 2012-07-17 | 2012-07-17 | Thin material blanking die with lower convex die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202781313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109433902A (en) * | 2018-12-10 | 2019-03-08 | 西安微电机研究所 | A kind of thin type complex parts processing method |
-
2012
- 2012-07-17 CN CN 201220345066 patent/CN202781313U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109433902A (en) * | 2018-12-10 | 2019-03-08 | 西安微电机研究所 | A kind of thin type complex parts processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20130717 |