CN203621212U - Hole-piercing punch - Google Patents
Hole-piercing punch Download PDFInfo
- Publication number
- CN203621212U CN203621212U CN201320778671.1U CN201320778671U CN203621212U CN 203621212 U CN203621212 U CN 203621212U CN 201320778671 U CN201320778671 U CN 201320778671U CN 203621212 U CN203621212 U CN 203621212U
- Authority
- CN
- China
- Prior art keywords
- punch
- piercing punch
- rubber ring
- hole
- piercing
- 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 - Lifetime
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 26
- 238000004080 punching Methods 0.000 claims abstract description 9
- 244000043261 Hevea brasiliensis Species 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920003052 natural elastomer Polymers 0.000 claims description 3
- 229920001194 natural rubber Polymers 0.000 claims description 3
- 229920003225 polyurethane elastomer Polymers 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model discloses a hole-piercing punch. The hole-piercing punch comprises a punching end (1) and a fixing end (2) fastened with a punch retainer. The hole-piercing punch is characterized in that a groove (3) is formed in a position, which is close to the fixing end, of the hole-piercing punch, and a rubber ring (4), which is matched with the punch retainer, is placed in the groove (3). The hole-piercing punch is tightly matched with the punch retainer through a rubber ring, so that the problem of easiness in dropping of the hole-piercing punch is effectively solved; when the hole-piercing punch is replaced, the hole-piercing punch is very labor-saving to draw, and the hole-piercing punch can be widely applied to the field of stamping dies.
Description
Technical field
The utility model belongs to diel field, especially relates to a kind of novel piercing punch.
Background technology
At present in air-condition heat exchanger fin diel, piercing punch is often directly fixed on punch retainer by allowance control, adopt this fixed form to have following defect: tolerance is difficult to control, in the time that piercing punch and punch retainer gap are larger, after piercing punch installation, easily drop; If otherwise gap is less, due to piercing punch coordinate with punch retainer very tight, changing when piercing punch, very inconvenient.
As Chinese Patent Application No. 200620110617.X discloses a kind of Portable changeable round tube punching device, include the parts such as mould bases, jack, punch retainer, punch, punch guiding trestle, lower platen.Device is take jack as power, and jack upside-down mounting is on mould bases, and the plunger of jack is connected with punch retainer; In the centre of mould bases, punch guiding trestle is installed, punch guiding trestle lower end is provided with top board, top board is processed into being arranged on mould bases bottom lower platen the shape matching with tubing, in punch process, will after Work-sheet pressing, carry out punching by upper and lower pressing plate.Although adopt the screw solid punch on punch retainer in above-mentioned patent, facilitate to a certain extent the replacing to punch, its structure is more complicated.
Utility model content
The purpose of this utility model is to provide a kind of piercing punch, and while having solved existing piercing punch and punch retainer assembling, piercing punch easily drops, changes inconvenient problem.
The utility model solves the technical scheme that its technical problem adopts: a kind of piercing punch, the stiff end that comprises punching press end and fix with punch retainer, described piercing punch is provided with groove near stiff end place, is mounted with the rubber ring matching with punch retainer in groove.Preferably, rubber ring is the rubber ring that natural rubber or polyurethane rubber are made.
In order to improve frictional force between rubber ring and punch retainer, on rubber ring outer wall, be also provided with projection.
For convenient, rubber ring is arranged in groove, rubber ring inwall is provided with guiding screw thread.
In order to blow material by pressure-air, prevent that punched scrap is bonded at the folded punching of appearance on sheet stock, is also provided with pore on punching press punch.
The beneficial effects of the utility model: by adopting elastic tape to closely cooperate with punch retainer, can effectively solve the problem that piercing punch easily drops, and while changing piercing punch, choose also very laborsaving; Further, on rubber ring outer wall, be also provided with projection, improved frictional force between rubber ring and punch retainer; Rubber ring inwall is provided with guiding screw thread, conveniently rubber ring is arranged in groove.
Below with reference to drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is cutaway view of the present utility model.
The specific embodiment
Embodiment, refer to Fig. 1, a kind of piercing punch, the stiff end 2 that comprises punching press end 1 and fix with punch retainer, described piercing punch is provided with groove 3 near stiff end place, in groove 3, be mounted with the rubber ring 4 matching with punch retainer, preferred, rubber ring 4 is the rubber ring that natural rubber or polyurethane rubber are made.
On rubber ring 4 outer walls, be also provided with projection, strengthened the frictional force between rubber ring and punch retainer.Rubber ring 4 inwalls are also provided with guiding screw thread, conveniently rubber ring are arranged in groove.In order to blow material by pressure-air, prevent that punched scrap is bonded at the folded punching of appearance on sheet stock, is also provided with pore 5 on piercing punch.The utility model, by adopting elastic tape to closely cooperate with punch retainer, can effectively solve the problem that piercing punch easily drops, and while changing piercing punch, chooses also very laborsaving, can be widely used in diel field.
Claims (5)
1. a piercing punch, the stiff end (2) that comprises punching press end (1) and fix with punch retainer, it is characterized in that: described piercing punch is provided with groove (3) near stiff end place, in groove (3), be mounted with the rubber ring (4) matching with punch retainer.
2. piercing punch as claimed in claim 1, is characterized in that: on described rubber ring (4) outer wall, be also provided with the projection for improving frictional force between rubber ring and punch retainer.
3. piercing punch as claimed in claim 1, is characterized in that: described rubber ring (4) inwall is provided with the convenient guiding screw thread of installing.
4. the piercing punch as described in claims 1 to 3 any one, is characterized in that: described rubber ring (4) is the rubber ring that natural rubber or polyurethane rubber are made.
5. piercing punch as claimed in claim 4, is characterized in that: also comprise the pore (5) that blows material by pressure-air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778671.1U CN203621212U (en) | 2013-12-02 | 2013-12-02 | Hole-piercing punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320778671.1U CN203621212U (en) | 2013-12-02 | 2013-12-02 | Hole-piercing punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203621212U true CN203621212U (en) | 2014-06-04 |
Family
ID=50807733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320778671.1U Expired - Lifetime CN203621212U (en) | 2013-12-02 | 2013-12-02 | Hole-piercing punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203621212U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363893A (en) * | 2015-12-07 | 2016-03-02 | 吴中区光福良盛机械厂 | Anti-rotation piercing punch |
| CN105363895A (en) * | 2015-12-07 | 2016-03-02 | 吴中区光福良盛机械厂 | Piercing terrace die convenient to dismount |
-
2013
- 2013-12-02 CN CN201320778671.1U patent/CN203621212U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105363893A (en) * | 2015-12-07 | 2016-03-02 | 吴中区光福良盛机械厂 | Anti-rotation piercing punch |
| CN105363895A (en) * | 2015-12-07 | 2016-03-02 | 吴中区光福良盛机械厂 | Piercing terrace die convenient to dismount |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |