CN203171097U - Stepped tap - Google Patents
Stepped tap Download PDFInfo
- Publication number
- CN203171097U CN203171097U CN 201320200229 CN201320200229U CN203171097U CN 203171097 U CN203171097 U CN 203171097U CN 201320200229 CN201320200229 CN 201320200229 CN 201320200229 U CN201320200229 U CN 201320200229U CN 203171097 U CN203171097 U CN 203171097U
- Authority
- CN
- China
- Prior art keywords
- stepped
- side edges
- machining
- edge portion
- tap
- 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
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- Drilling Tools (AREA)
Abstract
The utility model aims to provide a stepped tap which is capable of improving the product quality while effectively improving the work efficiency for machining of stepped internal threads. The stepped tap comprises a handle portion and an edge portion which is mounted at the end of the handle. The stepped tap is characterized in that a plurality of sections of side edges with threads are arranged successively at positions from the end of the edge portion to the connection position between the edge portion and the handle portion, and diameters of the adjacent side edges increase successively from the end of the edge portion to the handle portion. During machining of the stepped internal threads, thread milling can be performed on pre-machined stepped holes through the plurality of sections of side edges with the threads, cutter changing in the whole working process is not needed, the coaxiality of the thread milling process is guaranteed, and the machining efficiency and the machining quality are improved.
Description
Technical field
The utility model belongs to cutter manufacturing technology field, specially refers to a species stage screw tap.
Background technology
The processing method of the internal thread in tradition notch cuttype hole is to carry out the segmentation tapping with two different screw taps of diameter respectively, in tapping process, must change screw tap like this, had a strong impact on operating efficiency, and because successively the axiality of two screw taps of company may be different, therefore there are two sections risks that the internal thread hole axiality is different that process, may influence follow-up use.
The utility model content
The purpose of this utility model is to propose a species stage screw tap, can improve the quality of products when effectively improving the operating efficiency of the stepped internal thread of processing.
Ladder screw tap of the present utility model comprises shank and is installed in the blade of shank end, the end that key is described blade to the joint of blade and shank is disposed with the several sections side edges with screw thread, and the diameter of adjacent side edge is increased successively by the end of the blade direction to shank.
When the stepped internal thread of processing, the several sections side edges with screw thread can carry out thread milling to the good ladder sky of preprocessing simultaneously, in entire work process, need not to carry out tool changing, guaranteed the axiality of thread milling process, thereby improved working (machining) efficiency and crudy.
Further, the flight pitch of described all side edges is identical, so that each internal thread hole all can keep synchronous thread milling, and then guarantees crudy.
Ladder screw tap of the present utility model can be processed the stepped hole internal thread simultaneously according to the side edge by several sections different-diameters, effectively increases work efficiency, and can improve the quality of products, and reduces production costs.
Description of drawings
Fig. 1 is the structural representation of ladder screw tap of the present utility model.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are described in further detail.
Embodiment 1:
As shown in Figure 1, the ladder screw tap of present embodiment comprises shank 1 and is installed in the blade 2 of shank 1 end, the end of described blade 2 to the joint of blade 2 and shank 1 is disposed with two sections side edges 3,4 with screw thread, and the diameter of side edge 3 is less than the diameter of side edge 4.
When the stepped internal thread of processing, two sections side edges 3,4 with screw thread can carry out thread milling to the good ladder sky of preprocessing simultaneously, in entire work process, need not to carry out tool changing, guaranteed the axiality of thread milling process, thereby improved working (machining) efficiency and crudy.
Further, side edge 3,4 flight pitch are identical, so that each internal thread hole all can keep synchronous thread milling, and then guarantee crudy.
Claims (2)
1. a species stage screw tap, comprise shank and the blade that is installed in the shank end, the end that it is characterized in that described blade to the joint of blade and shank is disposed with the several sections side edges with screw thread, and the diameter of adjacent side edge is increased successively by the end of the blade direction to shank.
2. ladder screw tap according to claim 1 is characterized in that the flight pitch of described all side edges is identical.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320200229 CN203171097U (en) | 2013-04-19 | 2013-04-19 | Stepped tap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320200229 CN203171097U (en) | 2013-04-19 | 2013-04-19 | Stepped tap |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203171097U true CN203171097U (en) | 2013-09-04 |
Family
ID=49067850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201320200229 Expired - Fee Related CN203171097U (en) | 2013-04-19 | 2013-04-19 | Stepped tap |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203171097U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104107962A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Stepped screw tap |
WO2016033855A1 (en) * | 2014-09-01 | 2016-03-10 | 四川省外贸机械进出口有限责任公司 | Screw tap with double-head stepped quick-changing shank |
-
2013
- 2013-04-19 CN CN 201320200229 patent/CN203171097U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104107962A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Stepped screw tap |
WO2016033855A1 (en) * | 2014-09-01 | 2016-03-10 | 四川省外贸机械进出口有限责任公司 | Screw tap with double-head stepped quick-changing shank |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140419 |