CN202479646U - Screw tap for high-hardness steel - Google Patents
Screw tap for high-hardness steel Download PDFInfo
- Publication number
- CN202479646U CN202479646U CN2012201062622U CN201220106262U CN202479646U CN 202479646 U CN202479646 U CN 202479646U CN 2012201062622 U CN2012201062622 U CN 2012201062622U CN 201220106262 U CN201220106262 U CN 201220106262U CN 202479646 U CN202479646 U CN 202479646U
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- screw tap
- blade
- blades
- angles
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Abstract
The utility model aims to provide a screw tap for high-hardness steel. By the screw tap, the work efficiency of internal thread machining for the high-hardness steel can be improved effectively, and the production cost can also be reduced while the quality of products is ensured. The screw tap comprises a taper shank and a blade part arranged at the end of the taper shank, wherein the blade part is provided with at least three blades; and front angles and rear angles of the blades are less than 5 degrees. According to the screw tap, the strength of the blades is enhanced by using a structure of the small front angles and the small rear angles, and tapping is performed by using multiple blades to reduce the cutting resistance of the single blade, so that the possibility of cutter breaking is reduced. According to the screw tap for the high-hardness steel, due to the adoption of the structural forms of the small front angles, the small rear angles and multiple blades, the cutter breaking is prevented effectively, the production cost is reduced, the production efficiency is improved, and the machining quality is ensured.
Description
Technical field
The utility model belongs to cutter manufacturing technology field, specially refers to a kind of glass hard steel and uses screw tap.
Background technology
Processing method during the glass hard steel machining screw is to process thread Pilot hole with suitable drill bit earlier, and then removes to attack the system screw thread with screw tap, and its difficulty is: workpiece material hardness is higher; Carrying out screw thread adds and is difficult to guarantee its machining accuracy man-hour; And easy breaking causes and does over again and to get the number of times of disconnected awl frequent, and not only productivity ratio is low; Influence the quality of product simultaneously, on producing, cause inconvenience.
The utility model content
The purpose of the utility model is to propose a kind of glass hard steel use screw tap, can effectively improve the operating efficiency when glass hard steel carried out internal thread machining, in the assurance product quality, can also reduce production costs.
The glass hard steel of the utility model comprises taper shank and the blade that is installed in the taper shank end with screw tap, and key is that said blade is provided with at least three blades, and the anterior angle of said blade and relief angle are all less than 5 degree.
Above-mentioned screw tap has increased the intensity of blade through taking the structure of little anterior angle, little relief angle, has adopted the multitool sword to carry out tapping simultaneously simultaneously, has reduced the suffered cutting resistance of monolithic blade, thereby has reduced the possibility of breaking.
Further, hold bits and chip removal situation for the stock-removing efficiency, the improvement that improve screw tap, reduce and collapse tooth and fracture, the head end of said blade is provided with cutting cone, and said cutting taper thread grinding has skewed slot.Skewed slot helps holding bits and chip removal, has reduced the resistance of chad to screw tap, has improved processing quality.
Through little anterior angle, the version of little relief angle and multiple-cutting-edge has prevented breaking to the glass hard steel of the utility model effectively, has reduced production cost, has improved production efficiency, has guaranteed crudy with screw tap.
Description of drawings
Fig. 1 is the structural representation of the glass hard steel of the utility model with screw tap.
Fig. 2 is the front view of the glass hard steel of the utility model with the blade of screw tap.
The specific embodiment
Contrast accompanying drawing below; Through description, the effect of the mutual alignment between the shape of the specific embodiment of the utility model such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are done further to specify to embodiment.
Embodiment 1:
Like Fig. 1, shown in 2, the glass hard steel of present embodiment comprises taper shank 1 and the blade 2 that is installed in taper shank 1 end with screw tap, and blade 2 is provided with four blades 3, and the anterior angle 31 of blade 3 is all spent less than 5 with relief angle 32.
Above-mentioned screw tap has increased the intensity of blade 3 through taking the structure of little anterior angle, little relief angle, has adopted the multitool sword to carry out tapping simultaneously simultaneously, has reduced the suffered cutting resistance of monolithic blade, thereby has reduced the possibility of breaking.
Further, hold bits and chip removal situation for the stock-removing efficiency, the improvement that improve screw tap, reduce and collapse tooth and fracture, the head end of blade 2 is provided with cutting cone 4, and said cutting cone 4 grinds has skewed slot 5.Skewed slot 5 helps holding bits and chip removal, has reduced the resistance of chad to screw tap, has improved processing quality.
Claims (2)
1. a glass hard steel is used screw tap, comprises taper shank and the blade that is installed in the taper shank end, it is characterized in that said blade is provided with at least three blades, and the anterior angle of said blade and relief angle are all less than 5 degree.
2. glass hard steel according to claim 1 is used screw tap, it is characterized in that the head end of said blade is provided with cutting cone, and said cutting taper thread grinding has skewed slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201062622U CN202479646U (en) | 2012-03-21 | 2012-03-21 | Screw tap for high-hardness steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201062622U CN202479646U (en) | 2012-03-21 | 2012-03-21 | Screw tap for high-hardness steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202479646U true CN202479646U (en) | 2012-10-10 |
Family
ID=46954106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201062622U Expired - Lifetime CN202479646U (en) | 2012-03-21 | 2012-03-21 | Screw tap for high-hardness steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202479646U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581395A (en) * | 2012-03-21 | 2012-07-18 | 锑玛(苏州)精密工具有限公司 | Screw tap for high hardness steel |
-
2012
- 2012-03-21 CN CN2012201062622U patent/CN202479646U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581395A (en) * | 2012-03-21 | 2012-07-18 | 锑玛(苏州)精密工具有限公司 | Screw tap for high hardness steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Screw tap for high hardness steel Effective date of registration: 20130201 Granted publication date: 20121010 Pledgee: Bank of Communications Ltd Suzhou branch Pledgor: D & M (Suzhou) Precision Cutting Tools Co., Ltd. Registration number: 2013320010003 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180408 Granted publication date: 20121010 Pledgee: Bank of Communications Ltd Suzhou branch Pledgor: D & M (Suzhou) Precision Cutting Tools Co., Ltd. Registration number: 2013320010003 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180606 Address after: 400000 Qingyan science and technology venture Valley, 4 Xinglong Road, Jiulongpo District, Chongqing Patentee after: Chongqing antimony precision tools Co., Ltd. Address before: 215000 Shuangyang Road Industrial Park 23, Lou Town, Suzhou Industrial Park, Jiangsu Patentee before: D & M (Suzhou) Precision Cutting Tools Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |