CN1301616A - Hard alloy screw driver head - Google Patents
Hard alloy screw driver head Download PDFInfo
- Publication number
- CN1301616A CN1301616A CN 99127559 CN99127559A CN1301616A CN 1301616 A CN1301616 A CN 1301616A CN 99127559 CN99127559 CN 99127559 CN 99127559 A CN99127559 A CN 99127559A CN 1301616 A CN1301616 A CN 1301616A
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- CN
- China
- Prior art keywords
- hard alloy
- screw driver
- driver head
- driver bit
- alloy screw
- 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.)
- Granted
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
A hard alloy screw driver head has long service life and high bending strength and is made of hard alloy, especially that of YG series. It is manufactured through powder metallurgical process and may be in different required shapes, such as cross, flat, square, star, etc. After being machined into required shape, it is fixed to the shaft of screw driver. The high hardness, high strength and high wear-resistance of the hard alloy make the screw driver head possess long service life. In addition, using relatively little hard alloy results in no essential increase on the whole cost of the screw driver.
Description
Hard alloy screw driver head of the present invention is the driver bit that a kind of employing carbide alloy that is used on the screwdriver is made.
At present, the screwdriver of market sale mostly is cutter head and knife bar integrative-structure and employing common metal and makes, this driver bit hardness is low, wear no resistance, cutter head often occurring damages and the intact situation of screwdriver rod, thereby make the service life of driver bit not consistent service life with screwdriver rod, caused certain waste of material, sometimes also owing to the driver bit poor quality makes screw head impaired
In view of the objective of the invention is to design a kind of and screwdriver rod, above-mentioned existing in prior technology problem is complementary and robust hard alloy screw driver head service life.
Hard alloy screw driver head of the present invention, its structure are that driver bit is a monomer, can with the intercalation of the screwdriver body of rod after be loaded into one, driver bit adopts Hardmetal materials to make; Driver bit of the present invention can adopt welding, screw thread or slot mode to be connected with the screwdriver body of rod; Driver bit of the present invention can be made shapes such as cross, in-line, square, hexagon, star; YG20 or YG20C material in the optional YG series of the material of driver bit of the present invention.
Hard alloy screw driver head of the present invention is because it adopts Hardmetal materials to make, and Hardmetal materials has characteristics such as high rigidity, high strength and wearability are good, therefore adopt increase greatly the service life of the helical cutter head that this material makes, also can satisfy the requirement of intensity simultaneously.In addition, this product material therefor is less so can not increase the cost of screwdriver largely.It is fragile that the present invention has fundamentally solved the existing cutter head of original technology, cutter head and knife bar inconsistent problem in service life.
Accompanying drawing of the present invention is: among the structural representation figure of the hard alloy screw driver head and the screwdriver body of rod: 1, driver bit 2, the screwdriver body of rod
Specific embodiments of the invention are as follows: helical cutter head 1 adopts the YG serial carbide alloy to make, and the intensity of YG serial carbide alloy can reach 1700-2600N/mm
2, and driver bit 1 preferably selects for use YG20 or YG20C material to make; Driver bit 1 adopts powder metallurgy method to make cross, in-line, square, star etc., the afterbody of driver bit 1 can be made into the plush copper structure, the external end head of the screwdriver body of rod 2 is made the groove type structure that is complementary with it, and is integrally welded after driver bit 1 and 2 intercalations of the screwdriver body of rod.Driver bit also can be with the connected mode of screwdriver rod and is threaded.
Claims (4)
1, a kind of hard alloy screw driver head is characterized in that driver bit 1 is monomer, can with 2 intercalations of the screwdriver body of rod after be loaded into one, driver bit 1 adopts Hardmetal materials to make.
2,, it is characterized in that driver bit 1 can adopt welding, screw thread or slot mode to be connected with the screwdriver body of rod 2 according to described tin of hard alloy screw driver head of claim 1.
3, hard alloy screw driver head according to claim 1 is characterized in that driver bit 1 can make shapes such as cross, in-line, square, hexagon, star.
4, hard alloy screw driver head according to claim 1 is characterized in that YG20 or YG20C material in the optional YG series of material of driver bit 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99127559A CN1095419C (en) | 1999-12-29 | 1999-12-29 | Hard alloy screw driver head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99127559A CN1095419C (en) | 1999-12-29 | 1999-12-29 | Hard alloy screw driver head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1301616A true CN1301616A (en) | 2001-07-04 |
| CN1095419C CN1095419C (en) | 2002-12-04 |
Family
ID=5284915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99127559A Expired - Fee Related CN1095419C (en) | 1999-12-29 | 1999-12-29 | Hard alloy screw driver head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1095419C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11541516B2 (en) | 2019-09-25 | 2023-01-03 | Snap-On Incorporated | Fastener retention and anti-camout tool bit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064293C (en) * | 1996-10-16 | 2001-04-11 | 刀具制造有限公司 | Tool bit jointing device |
-
1999
- 1999-12-29 CN CN99127559A patent/CN1095419C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1095419C (en) | 2002-12-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |