CN202779388U - Burr-free punching mold - Google Patents
Burr-free punching mold Download PDFInfo
- Publication number
- CN202779388U CN202779388U CN 201220478641 CN201220478641U CN202779388U CN 202779388 U CN202779388 U CN 202779388U CN 201220478641 CN201220478641 CN 201220478641 CN 201220478641 U CN201220478641 U CN 201220478641U CN 202779388 U CN202779388 U CN 202779388U
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- CN
- China
- Prior art keywords
- die
- conical surface
- punching
- burr
- upper mounted
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a burr-free punching mold which consists of a concave mold fixing plate, a convex mold and a concave mold, wherein the outer surface of the concave mold is divided into an upper section of circular conical surface and a lower section of circular conical surface, the upper section of circular conical surface is a cutting edge, the cutting edge has the cutting-off function of a sharp knife edge, and the lower section of circular conical surface is a positioning surface. The burr-free punching mold has the characteristics of being high in machining efficiency, free from burr in the process of punching, high in machining quality, and simple in structure.
Description
Technical field
The utility model belongs to machining cold punching die technical field, especially relates to the special-purpose punching without burr mould of a kind of copper bar.
Background technology
In the punch process field, especially at power transmission and distribution voltage switchgear copper bar manufacture field, existing processing technology is by the bus processing machine punching, finishes the processing in hole by the deburring of radial drilling machine chamfering afterwards; But how many population size in the aperture on the copper bar and pitch-row and hole differs, and the length of copper bar is very long, reaches 4-5 rice, and the chamfering deburring needs two people operation, takes a lot of work and requires great effort.
Summary of the invention
The purpose of this utility model be to improve existing technical deficiency and provide that a kind of working (machining) efficiency is high, punching is without burr, punching without burr mould that crudy is high, simple in structure.
The utility model is to realize like this, a kind of punching without burr mould, formed by die block, punch and die, be characterized in that the die outer surface is divided into the two sections outer conical surface, the epimere outer conical surface is cutting edge, cutting edge is the cutting edge with sharp knife edges cutting function, and the hypomere outer conical surface is locating surface.
In order further to realize the purpose of this utility model, can be that die block is to be bolted by die upper mounted plate and die bottom plate to consist of, die is installed between die upper mounted plate and the die bottom plate and locates.
In order further to realize the purpose of this utility model, can be that the die upper mounted plate is provided with endoporus, endoporus has the inner conical surface that matches with die locating surface outer conical surface.
In order further to realize the purpose of this utility model, can be that the die bottom plate is provided with holding screw, die is held out against on the inner conical surface that leans against the die upper mounted plate and guarantees whether die moves down in the blanking pressure effect by holding screw.
In order further to realize the purpose of this utility model, can be that die block is provided with the seam locating hole, push piece spring and push rod are housed in it.
In order further to realize the purpose of this utility model, can be that die bottom plate and die upper mounted plate are provided with locating hole, push piece spring and push rod are housed in it.
The utility model is compared in prior art has following distinguishing feature and good effect: the utility model adopts a kind of die of the sharp cutting edge with cutting function, the outer surface of die has two sections outer conical surface, the epimere outer conical surface consists of the keen edge of die, to realize the purpose of incision copper bar, the hypomere outer conical surface matches with the inner conical surface of die block, with realize die radially with the effect of longitudinal register and more protection cutting edge of die; Die block is to be bolted by die upper mounted plate and die bottom plate to consist of, and die is installed between die upper mounted plate and the die bottom plate and locates, and is convenient to change die, and is simultaneously easy to process; The die upper mounted plate is provided with endoporus, endoporus has the inner conical surface that matches with die locating surface male cone (strobilus masculinus), die hypomere outer conical surface cooperates better with the inner conical surface of die upper mounted plate like this, further realize die radially with the effect of longitudinal register and more protection cutting edge of die; The die bottom plate is provided with holding screw, and die is held out against on the inner conical surface that leans against the die upper mounted plate and guarantees whether die moves down in the blanking pressure effect by holding screw, prevents from moving down the underproof problem of punching press that causes at the effect lower cavity die of blanking pressure; Die block is provided with the seam locating hole, push piece spring and push rod are housed in it, or die bottom plate and die upper mounted plate are provided with locating hole, push piece spring and push rod are housed in it, by the spring ejection push rod, be used for holding up copper bar, mobile smoothly in process to guarantee copper bar, prevent surface damage.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is another kind of structural representation of the present utility model.
Fig. 3 is another structural representation of the present utility model.
The specific embodiment
Embodiment 1, a kind of punching without burr mould, with reference to Fig. 1, be to be mounted with die 6 in die block 9, punch 5 is installed on the correspondence position of die 6 tops, and the outer surface of die 6 is divided into the two sections outer conical surface, the epimere outer conical surface is cutting edge, cutting edge is the cutting edge with sharp knife edges cutting function, and the hypomere outer conical surface is locating surface, and this consists of a kind of structure of the present utility model.
Embodiment 2, a kind of punching without burr mould, with reference to Fig. 2, on the basis of embodiment 1, die block 9 is to be bolted by die upper mounted plate 3 and die bottom plate 7 to consist of, and die 6 is installed in location between die upper mounted plate 3 and the die bottom plate 7, and die upper mounted plate 3 is provided with endoporus 8, endoporus 8 has the inner conical surface that matches with die 6 locating surface male cone (strobilus masculinus)s, and other and embodiment 1 are identical.
Embodiment 3, a kind of punching without burr mould, with reference to Fig. 3, on the basis of embodiment 2, die bottom plate 7 is provided with holding screw 4, and die 6 is held out against on the inner conical surface that leans against die upper mounted plate 3 and guarantees whether die moves down in the blanking pressure effect by holding screw 4, and die bottom plate 7 is provided with locating hole 10 with die upper mounted plate 3, push piece spring 1 and push rod 2 are housed in it, and other and embodiment 2 are identical.
When using the utility model punching, punch 5 moves down, copper bar moves down thereupon, at first the keen edge of die 6 is cut copper bar 2mm, burr layer and copper bar are cut off, rear copper bar stops to move down under the stopping of die upper mounted plate 3, punch 5 continues to move down, and realizes punching processing, process elasticity under the effect of blanking pressure, plastic deformation is to shear fracture and moulding, because the burr layer ruptures, and concentrate at the tip of fracture belt height of formation stress, so, in the process of shearing, at first form along fracture belt and cut off, according to Theory of Fracture Mechanics, produce brittle failure under the effect far below theoretical shear stress, like this, the condition that burr produces does not just exist, realized punching without burr, push piece spring 1 and push rod 2 are housed in mould upper mounted plate 3 and the die bottom plate 7, make it smoothly mobile to hold up copper bar, not scratch surface, the utility model has been opened up the copper bar punching and has been processed without burr, has reached high-quality and efficient purpose.
Claims (6)
1. punching without burr mould, formed by die block (9), punch (5) and die (6), it is characterized in that die (6) outer surface is divided into the two sections outer conical surface, the epimere outer conical surface is cutting edge, cutting edge is the cutting edge with sharp knife edges cutting function, and the hypomere outer conical surface is locating surface.
2. a kind of punching without burr mould according to claim 1, it is characterized in that die block (9) is to be bolted formation by die upper mounted plate (3) and die bottom plate (7), die (6) is installed in location between die upper mounted plate (3) and the die bottom plate (7).
3. a kind of punching without burr mould according to claim 2 is characterized in that die upper mounted plate (3) is provided with endoporus (8), and endoporus (8) has the inner conical surface that matches with die (6) locating surface outer conical surface.
4. a kind of punching without burr mould according to claim 2, it is characterized in that die bottom plate (7) is provided with holding screw (4), die (6) holds out against on the inner conical surface that leans against die upper mounted plate (3) by holding screw (4) and guarantees whether die moves down in the blanking pressure effect.
5. a kind of punching without burr mould according to claim 1 is characterized in that die block (9) is provided with seam locating hole (10), and push piece spring (1) and push rod (2) are housed in it.
6. a kind of punching without burr mould according to claim 2 is characterized in that die bottom plate (7) and die upper mounted plate (3) are provided with locating hole (10), are equipped with push piece spring (1) and push rod (2) in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478641 CN202779388U (en) | 2012-09-19 | 2012-09-19 | Burr-free punching mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478641 CN202779388U (en) | 2012-09-19 | 2012-09-19 | Burr-free punching mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202779388U true CN202779388U (en) | 2013-03-13 |
Family
ID=47806730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220478641 Expired - Fee Related CN202779388U (en) | 2012-09-19 | 2012-09-19 | Burr-free punching mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202779388U (en) |
-
2012
- 2012-09-19 CN CN 201220478641 patent/CN202779388U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210919 |