CN2230199Y - Tap - Google Patents
Tap Download PDFInfo
- Publication number
- CN2230199Y CN2230199Y CN 95221315 CN95221315U CN2230199Y CN 2230199 Y CN2230199 Y CN 2230199Y CN 95221315 CN95221315 CN 95221315 CN 95221315 U CN95221315 U CN 95221315U CN 2230199 Y CN2230199 Y CN 2230199Y
- Authority
- CN
- China
- Prior art keywords
- screw tap
- tap
- back angle
- big
- angle
- 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
Links
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model relates to a tap, which is characterized in that a zero-degree back angle part connected with a cutting edge is kept with 0.5-2 mm, and the rest back angle parts are all abraded into the angles between 20 DEG and 30 DEG. The tap has the advantages of more than quintuple work efficiency, large chip containing space as compared with the existing taps, little friction resistance, easiness for tapping and long service, and the tap is not easy to be broken.
Description
The utility model relates to the screw tap technology, belongs to internal thread machining cutter class.
Screw tap is the cutting cutlery of using in order to the system screwed hole in the machinery manufacturing industry, this cutting cutlery material hardness height, and fragility is bigger, in making tapping operating process by hand usually, because cutting load is heavier, and manual operations is firmly uneven, and the accident that screw tap is twisted off often has generation, the screw tap that is twisted off is stuck in and is difficult in the hole taking out, even cause product rejection, not only loss screw tap, and inefficiency, both influence production, also caused economic loss.
Through researching and analysing, the reason that causes screw tap to be twisted off is:
1, during screw tap was made, thermal treatment quality was poor, has hardening flaw;
2, tapping method is improper, and is firmly unreasonable;
3, the angle part is too big behind 0 ° on the existing screw tap, certainly leads to friction during tapping, and cutting resistance is big, and screw tap is easily blocked by built-up edge.
The reason of first and second point is not difficult to award solution by method respectively, and just showing thirdly, reason proposes following solution:
Keep 0.5-2mm with angle part after cutting edge contains 0 ° that connects mutually, (big screw tap is got big value, and little screw tap gets the small value), all the other angle parts, back all reconditioning become 20-30 degree angle.
Fig. 1 is the utility model organigram, and wherein A-A is the AA profile.
Embodiment: get tool steel or alloy tool steel (as T12A), be processed into screw tap by Fig. 1 structure, particularly the angle part keeps 0.5-2mm after 0 °, and all the other back angle part reconditionings become 20-30 degree angle.
The utility model with the advantage that existing screw tap is compared is:
Under the screw tap condition of same model as to attack the material of system also identical, this reality Bigger than existing screw tap chip space with Two-end Tap Applied, frictional resistance is little, during tapping Lighter, can improve work efficiency more than five times, and be difficult for being fractureed, the life-span Long, good in economic efficiency.
Claims (1)
1, a kind of screw tap is characterized in that:
Keep 0.5-2mm with angle part after cutting edge contains 0 ° that connects mutually, (big screw tap is got big value, and little screw tap gets the small value), all the other angle parts, back all reconditioning become 20-30 degree angle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 95221315 CN2230199Y (en) | 1995-08-31 | 1995-08-31 | Tap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 95221315 CN2230199Y (en) | 1995-08-31 | 1995-08-31 | Tap |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2230199Y true CN2230199Y (en) | 1996-07-03 |
Family
ID=33868966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 95221315 Expired - Fee Related CN2230199Y (en) | 1995-08-31 | 1995-08-31 | Tap |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2230199Y (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102554373A (en) * | 2012-03-21 | 2012-07-11 | 锑玛(苏州)精密工具有限公司 | Tool cutting edge inclination screw tap |
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 |
CN102744473A (en) * | 2012-07-03 | 2012-10-24 | 南京晨光集团有限责任公司 | Screw tap suitable for numerical control machining for titanium alloy |
CN103831487A (en) * | 2014-02-27 | 2014-06-04 | 汉江工具有限责任公司 | Broaching screw tap and grinding method thereof |
-
1995
- 1995-08-31 CN CN 95221315 patent/CN2230199Y/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102554373A (en) * | 2012-03-21 | 2012-07-11 | 锑玛(苏州)精密工具有限公司 | Tool cutting edge inclination screw tap |
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 |
CN102744473A (en) * | 2012-07-03 | 2012-10-24 | 南京晨光集团有限责任公司 | Screw tap suitable for numerical control machining for titanium alloy |
CN103831487A (en) * | 2014-02-27 | 2014-06-04 | 汉江工具有限责任公司 | Broaching screw tap and grinding method thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2245302C (en) | Thread cutting die and method of manufacturing same | |
CN1945030B (en) | Method for processing high accuracy high strength bolt | |
CN2230199Y (en) | Tap | |
CN212191600U (en) | Multi-tooth multi-tooth threading tool | |
CN213702036U (en) | Hard alloy saw blade | |
JPH11320255A (en) | Chaser | |
CN2761334Y (en) | Saw blade | |
CN2887502Y (en) | Through-hole machine fixed jacking cutter | |
CN2136094Y (en) | Cutting and extruding tap | |
CN2285179Y (en) | Alloy combined reamer | |
CN219881398U (en) | Ultra-precise cutter with improved structure | |
CN1657454A (en) | Dual-purpose saw web for cutting and grinding glass and its manufacturing method | |
CN213944930U (en) | Corrosion-resistant cermet machine presss from both sides cutter | |
CN87208373U (en) | Reamer | |
CN2582800Y (en) | Isoscrew linear type chip breaker V shaped milling cutter | |
CN218903750U (en) | Integrated W-shaped hole pressing plate forming cutter | |
CN2150003Y (en) | Cutting-extruding combined tap | |
CN219852302U (en) | Rough and fine integrated milling cutter | |
CN2208465Y (en) | Protective screw tap | |
CN221454434U (en) | Machining drill bit for machining holes in inclined planes | |
CN205629573U (en) | Coupling thread machining composite cutter bar | |
CN1045404C (en) | Rotary metal cutting tool | |
CN215090906U (en) | Tungsten steel coating end mill | |
CN2347704Y (en) | Deburring combined tools | |
CN111850245B (en) | Method for improving toughness of cutting edge of wire pliers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |