CN201702247U - Punch for punching metal sheet threaded bottom hole - Google Patents
Punch for punching metal sheet threaded bottom hole Download PDFInfo
- Publication number
- CN201702247U CN201702247U CN2010201772321U CN201020177232U CN201702247U CN 201702247 U CN201702247 U CN 201702247U CN 2010201772321 U CN2010201772321 U CN 2010201772321U CN 201020177232 U CN201020177232 U CN 201020177232U CN 201702247 U CN201702247 U CN 201702247U
- Authority
- CN
- China
- Prior art keywords
- die head
- punch
- bottom hole
- threaded bottom
- pilot hole
- 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
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Abstract
The utility model relates to a punch for punching a metal sheet threaded bottom hole, which comprises a die rod. Besides, a stamping die head is arranged at the lower end of the die rod. The punch is characterized in that the stamping die head axially includes two sections, a front section is a small-diameter die head, a rear section is a large-diameter die head, the outer diameter of the large-diameter die head is the same with that of the threaded bottom hole, and the outer diameter of the small-diameter die head is 60%-85% of that of the large-diameter die head. The punch has the advantages that 1 the threaded bottom hole meeting the requirement of shape-position precision can be punched on a common punching machine and formed by one step in a punched manner by adopting the punch, the processed threaded bottom hole is fine in precision, and bellmouth orifices easily caused by original common punching is avoided, and 2 the punch is simple in structure and high in production efficiency, is much lower in manufacturing and maintenance costs than those of a processing method employing precise punching, effectively reduces processing cost, and is suitable for mass production.
Description
Technical field
The utility model relates to a kind of drift that is used for punching out metal blank thread Pilot hole.
Background technology
Hole processing on the metal blank was divided into for two steps usually, carried out thread Pilot hole processing earlier, carried out the screw tap tapping then.For making the screw that processes satisfy the certain precision requirement, thread Pilot hole will meet certain size and Geometrical Tolerance Principle.Thread Pilot hole processing method commonly used at present has drilling machine boring and fine-edge blanking.Wherein drilling machine is not suitable for producing in enormous quantities because working (machining) efficiency is low; Fine-edge blanking needs precision die and punch press, mould structure complexity, processing cost height.
Summary of the invention
Technical problem to be solved in the utility model be the deficiency that exists at above-mentioned prior art and provide a kind of simple in structure, machining accuracy is higher and the drift of the punching out metal blank thread Pilot hole that can be suitable for using on the common punch press.
The utility model is that the technical scheme that problem adopted of the above-mentioned proposition of solution is: include tringle, the tringle lower end is a stamping head, it is characterized in that described stamping head is divided into two joints vertically, prosthomere is the path die head, deutomerite is a big footpath die head, and described big footpath die head external diameter is identical with thread Pilot hole.
Press such scheme, described path die head external diameter is 60～85% of a big footpath die head external diameter.
Press such scheme, described big footpath die head and path die head are cylindrical.
Press such scheme, described big footpath die head front end periphery is provided with chamfering.
Press such scheme, described tringle upper end is provided with chuck.
The beneficial effects of the utility model are: 1, adopt drift of the present utility model can punching out go out to meet the thread Pilot hole that the accuracy of form and position requires on common punch press, and punch forming of energy, thread Pilot hole precision after the processing is good, avoids original common stamping to be prone to the situation of bellmouth orifice; 2, this punch structure is simple, the production efficiency height, and it is more much lower than the processing method with fine-edge blanking that it makes maintenance cost, effectively reduces processing cost, can be fit to produce in enormous quantities.
Description of drawings
Fig. 1 is the structure chart of an embodiment of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Include tringle 2, the upper end of tringle is provided with chuck 1, and drift is connected with punch press with chuck by tringle, and the tringle lower end is a stamping head, described stamping head is divided into two joints vertically, prosthomere is a path die head 6, and deutomerite is a big footpath die head 3, and described big footpath die head external diameter is identical with thread Pilot hole, path die head external diameter is 80% of a big footpath die head external diameter, big footpath die head and path die head are cylindrical, and at their intersection formation step 5, die head front end periphery also is provided with chamfering 4 in big footpath.
During the utility model punching, at first by the path die head punching of front end, it is tubaeform to go out being shaped as of hole, and drift continues to move downward the bellmouth orifice that utilizes the die head finishing of big footpath to go out then, the hole of horn shape can be trimmed to columniform thread Pilot hole.
Claims (5)
1. a drift that is used for punching out metal blank thread Pilot hole includes tringle, and the tringle lower end is a stamping head, it is characterized in that described stamping head is divided into two joints vertically, prosthomere is the path die head, and deutomerite is a big footpath die head, and described big footpath die head external diameter is identical with thread Pilot hole.
2. by the described drift that is used for punching out metal blank thread Pilot hole of claim 1, it is characterized in that described path die head external diameter is 60～85% of big footpath die head external diameter.
3. by claim 1 or the 2 described drifts that are used for punching out metal blank thread Pilot hole, it is characterized in that described big footpath die head and path die head are cylindrical.
4. by claim 1 or the 2 described drifts that are used for punching out metal blank thread Pilot hole, it is characterized in that described big footpath die head front end periphery is provided with chamfering.
5. by claim 1 or the 2 described drifts that are used for punching out metal blank thread Pilot hole, it is characterized in that described tringle upper end is provided with chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201772321U CN201702247U (en) | 2010-04-27 | 2010-04-27 | Punch for punching metal sheet threaded bottom hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201772321U CN201702247U (en) | 2010-04-27 | 2010-04-27 | Punch for punching metal sheet threaded bottom hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201702247U true CN201702247U (en) | 2011-01-12 |
Family
ID=43439395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201772321U Expired - Lifetime CN201702247U (en) | 2010-04-27 | 2010-04-27 | Punch for punching metal sheet threaded bottom hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201702247U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214254A (en) * | 2017-07-31 | 2017-09-29 | 昆山信杰汽车部件有限公司 | A kind of front wing panel bracket assembly mould |
| CN109647969A (en) * | 2019-01-02 | 2019-04-19 | 天津锦泰勤业精密电子有限公司 | Punch device, stamping equipment and hole-punching method |
| CN111729967A (en) * | 2020-06-16 | 2020-10-02 | 深圳市亿和精密科技集团有限公司 | Stamping die-based salad hole punching method and device |
-
2010
- 2010-04-27 CN CN2010201772321U patent/CN201702247U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214254A (en) * | 2017-07-31 | 2017-09-29 | 昆山信杰汽车部件有限公司 | A kind of front wing panel bracket assembly mould |
| CN109647969A (en) * | 2019-01-02 | 2019-04-19 | 天津锦泰勤业精密电子有限公司 | Punch device, stamping equipment and hole-punching method |
| CN111729967A (en) * | 2020-06-16 | 2020-10-02 | 深圳市亿和精密科技集团有限公司 | Stamping die-based salad hole punching method and device |
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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 |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |