CN201544307U - Punching needle - Google Patents
Punching needle Download PDFInfo
- Publication number
- CN201544307U CN201544307U CN 200920309466 CN200920309466U CN201544307U CN 201544307 U CN201544307 U CN 201544307U CN 200920309466 CN200920309466 CN 200920309466 CN 200920309466 U CN200920309466 U CN 200920309466U CN 201544307 U CN201544307 U CN 201544307U
- Authority
- CN
- China
- Prior art keywords
- needle
- punching
- needle body
- section
- syringe needle
- 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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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model relates to a punching device, in particular to a punching needle, which mainly solves the technical problems that the punching method and device of the prior art only can punch circular small holes and can not punch long slots or small holes with V-shaped openings, two working procedures are needed if processing is needed, the processing cost is higher and the like. The punching needle comprises a needle body (1) and is characterized in that the cross section of the needle body (1) is in a rectangle or inverted cone shape, the lower end of the inverted cone is connected with a punchable needle head (2) with a circular cross section, the diameter of the needle head is 0.1-0.5mm, and the width L of the connection point of the needle head (2) and the lower end of the needle body (1) is 0.06-0.4mm.
Description
Technical field
The utility model relates to a kind of hole punched device, especially relates to the isostructural improvement of a kind of punching pin.
Background technology
Carry out at present perforate and generally adopt stamping technology to carry out punching to form on less parts, but because the diameter in hole own is less, so its inner rim can stay burr, influence is used.Chinese patent discloses another kind of micro-aperture does not have burr hole-punching method and device (publication number: CN 1962109A) less, the steps include: to adopt the elastic fluid punching, at pre-periphery, prefabricated wide 0.01mm～0.06mm, the continuous groove of difference in height 0.06mm～0.15mm towards the part micro-aperture; At the reverse side of prefabricated continuous groove, an also prefabricated mirror image groove; Utilize special-purpose hole punched device, finish the few carrot-free punching technology of micro-aperture; Its device comprises briquetting, holds frame, elastomeric material and counterdie, places the pre-punched hole workpiece on the counterdie, and its pre-punched hole position periphery is shaped on continuous groove in advance, and the prefabricated mirror image groove of its reverse side is provided with the appearance frame on this workpiece, hold in the frame and install elastomeric material, installs briquetting on it.But the aperture that this hole-punching method and device can only the punching press circles can not punching press belt length groove or the aperture of v-shaped openings, then needs two procedures as processing, and processing cost is bigger.
The utility model content
The utility model technical issues that need to address provide a kind of punching pin, it mainly is to solve the aperture that existing in prior technology hole-punching method and device can only the punching press circles, can not punching press belt length groove or the aperture of v-shaped openings, then need two procedures as processing, the technical problem of the bigger grade of processing cost.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of punching pin of the present utility model, comprise needle body, it is characterized in that described needle body section is rectangle or back taper, but the lower end of back taper is connected with the syringe needle of section for circular punching, the diameter of syringe needle is 0.1～0.5mm, and the width L of the junction of syringe needle and needle body lower end is 0.06～0.4mm.Needle body integral body can be the triangular prism type, and its lower end is connected with the columniform syringe needle of whole one-tenth, and the shape of syringe needle and the hole shape of workpiece to be punched adapt.
As preferably, the junction of described syringe needle and needle body lower end is provided with the arc transition section, and the radius of arc transition section is 0.02～0.5mm.The arc transition section is the circular arc of indent, and it can be convenient to syringe needle and pass in and out comparatively steadily when carrying out punching, and the little hole bur of going out is less.
As preferably, the conicity angles alpha of described back taper needle body is 20～70 °.Taper angle the best can be 60 °, can guarantee the intensity of whole needle body, again can economical with materials.
As preferably, be connected with the mounting blocks that section is a rectangle on the described needle body.Needle body and mounting blocks integral body are made, and needle body can be installed on the stamping machine by mounting blocks.
Therefore, the utlity model has can disposable punching press belt length groove or the aperture of v-shaped openings, need not multiple working procedure, characteristics such as simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is the structural representations of looking up of Fig. 1.
Parts, position and numbering among the figure: needle body 1, syringe needle 2, arc transition section 3, mounting blocks 4.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of punching pin of this example, as Fig. 1, Fig. 2, there is an integral body to become the needle body 1 of triangular column type, promptly the section of needle body is a back taper, its taper angle is 60 °.The lower end of back taper needle body is connected with cylindrical, the conglobate syringe needle 2 of section of whole one-tenth, and the diameter of syringe needle is 40.18mm.The junction of syringe needle and needle body 1 lower end is provided with arc transition section 3, and the radius of arc transition section is 0.03mm.And syringe needle 2 is 0.1mm with the width L of the junction of needle body 1 lower end.Needle body 1 upper end is connected with the mounting blocks 4 that section is a rectangle.
During use, needle body 1 is installed on the stamping machine by mounting blocks 4 can carries out work.
Claims (4)
1. punching pin, comprise needle body (1), it is characterized in that described needle body (1) section is rectangle or back taper, but the lower end of back taper is connected with the syringe needle (2) of section for circular punching, the diameter of syringe needle is 0.1～0.5mm, and syringe needle (2) is 0.06～0.4mm with the width L of the junction of needle body (1) lower end.
2. a kind of punching pin according to claim 1 is characterized in that the described syringe needle (2) and the junction of needle body (1) lower end are provided with arc transition section (3), and the radius of arc transition section is 0.02～0.5mm.
3. a kind of punching pin according to claim 1 and 2, the conicity angles alpha that it is characterized in that described back taper needle body (1) is 20～70 °.
4. a kind of punching pin according to claim 1 and 2 is characterized in that described needle body (1) upper end is connected with the mounting blocks that section is a rectangle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920309466 CN201544307U (en) | 2009-09-02 | 2009-09-02 | Punching needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920309466 CN201544307U (en) | 2009-09-02 | 2009-09-02 | Punching needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201544307U true CN201544307U (en) | 2010-08-11 |
Family
ID=42599466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920309466 Expired - Fee Related CN201544307U (en) | 2009-09-02 | 2009-09-02 | Punching needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201544307U (en) |
-
2009
- 2009-09-02 CN CN 200920309466 patent/CN201544307U/en not_active Expired - Fee Related
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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: 20100811 Termination date: 20140902 |
|
| EXPY | Termination of patent right or utility model |