CN203171099U - Drilling and milling screw tap - Google Patents
Drilling and milling screw tap Download PDFInfo
- Publication number
- CN203171099U CN203171099U CN 201320199815 CN201320199815U CN203171099U CN 203171099 U CN203171099 U CN 203171099U CN 201320199815 CN201320199815 CN 201320199815 CN 201320199815 U CN201320199815 U CN 201320199815U CN 203171099 U CN203171099 U CN 203171099U
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- blade
- drilling
- machining
- screw tap
- workpiece
- 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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Abstract
The utility model aims at providing a drilling and milling screw tap which can improve product quality while effectively improving working efficiency of machining of inner threads. The drilling and milling screw tap comprises a handle portion and a blade portion installed on the end portion of the handle portion. The key point is that the blade portion is formed by a spiral drilling blade on the end portion, a lateral blade with threads and close to the handle portion and a plate cutting blade arranged between the drilling blade and the lateral blade. The cutting blade is parallel to the axis of the blade portion. In machining of the inner threads, first the drilling blade is in contact with a workpiece to drill the workpiece, then the cutting blade is utilized to conduct fine machining on the inner wall of a hole to enable the inner wall of the hole to be smooth, and finally the lateral blade with the threads and at the rear end is in contact with the workpiece to conduct thread milling on the drilled hole. Blade change is not required in the whole working process, coaxiality of the drilling process and the thread milling process is ensured, and machining efficiency and machining quality are improved accordingly.
Description
Technical field
The utility model belongs to cutter manufacturing technology field, specially refers to a kind of brill and mills screw tap.
Background technology
The processing method of tradition internal thread is to process thread Pilot hole with suitable drill bit earlier, the aperture also needs chamfering, go thread milling with milling cutter more at last, its shortcoming is: operation is disperseed, and required lathe and operation are more, and more the number of times of bit change and milling cutter is frequent, not only productivity ratio is low, and the axiality of drill bit and milling cutter is difficult to guarantee after the tool changing, influence product quality, causes inconvenience in production.
Have a kind of brill to mill screw tap now, its blade has boring sword and screw thread sword simultaneously, can tapping immediately after boring, and need not more bit change, therefore improved operating efficiency, but because after the boring, internal surface of hole is more coarse, so is difficult to guarantee the quality of tapping during tapping.
The utility model content
The purpose of this utility model is to propose a kind of brill to mill screw tap, can improve the quality of products when effectively improving the operating efficiency of machining internal thread.
Brill of the present utility model mills the blade that screw tap comprises shank and is installed in the shank end, key is that described blade is made of the side edge with screw thread of the helical form boring sword of its end, close shank and the tabular cutting edge between boring sword and the side edge, and described cutting edge is parallel to the blade axis.
When machining internal thread, at first be that the boring sword contacts with workpiece, workpiece is holed, cutting edge carries out retrofit to the inwall in hole then, makes the inwall in hole become smooth, and the side edge with screw thread of last rear end contacts with workpiece, can carry out thread milling to the hole of boring, in entire work process, need not to carry out tool changing, guaranteed the axiality of boring procedure and thread milling process, thereby improved working (machining) efficiency and crudy.
Further, the external diameter of described boring sword, cutting edge, side edge increases gradually, and can guarantee like this to hole sword, cutting edge, side edge all can play a role.
It is ingenious that brill of the present utility model mills the screw tap structural design, by drill bit, cutting drilling and milling cutter are combined, can effectively improve the operating efficiency of machining internal thread, and can improve the quality of products, and reduces production costs.
Description of drawings
Fig. 1 is the structural representation that brill of the present utility model mills screw tap.
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 brill of present embodiment mills the blade 2 that screw tap comprises shank 1 and is installed in shank 1 end, described blade 2 is made of the side edge with screw thread 5 of the helical form boring sword 3 of its end, close shank and the tabular cutting edge 4 between boring sword 3 and the side edge 5, and described cutting edge 4 is parallel to the axis of blade 2.
When machining internal thread, at first be that boring sword 3 contacts with workpiece, workpiece is holed, the inwall in 4 pairs of holes of cutting edge carries out retrofit then, makes the inwall in hole become smooth, and the side edge with screw thread 5 of last rear end contacts with workpiece, can carry out thread milling to the hole of boring, in entire work process, need not to carry out tool changing, guaranteed the axiality of boring procedure and thread milling process, thereby improved working (machining) efficiency and crudy.
Further, the external diameter of described boring sword 3, cutting edge 4, side edge 5 increases gradually, and the sword 3 that can guarantee like this to hole, cutting edge 4, side edge 5 all can play a role.
Claims (2)
1. a brill mills screw tap, comprise shank and the blade that is installed in the shank end, it is characterized in that described blade is made of the side edge with screw thread of the helical form boring sword of its end, close shank and the tabular cutting edge between boring sword and the side edge, described cutting edge is parallel to the blade axis.
2. brill according to claim 1 mills screw tap, it is characterized in that the external diameter of described boring sword, cutting edge, side edge increases gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320199815 CN203171099U (en) | 2013-04-19 | 2013-04-19 | Drilling and milling screw tap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320199815 CN203171099U (en) | 2013-04-19 | 2013-04-19 | Drilling and milling screw tap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203171099U true CN203171099U (en) | 2013-09-04 |
Family
ID=49067852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320199815 Expired - Fee Related CN203171099U (en) | 2013-04-19 | 2013-04-19 | Drilling and milling screw tap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203171099U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107965A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Drilling and milling screw tap |
| CN109562471A (en) * | 2016-08-10 | 2019-04-02 | 奥迪股份公司 | For manufacturing the cutter of internal screw thread in workpiece pre-manufactured hole |
-
2013
- 2013-04-19 CN CN 201320199815 patent/CN203171099U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107965A (en) * | 2013-04-19 | 2014-10-22 | 苏州文鼎模具有限公司 | Drilling and milling screw tap |
| CN109562471A (en) * | 2016-08-10 | 2019-04-02 | 奥迪股份公司 | For manufacturing the cutter of internal screw thread in workpiece pre-manufactured hole |
| CN109562471B (en) * | 2016-08-10 | 2019-12-10 | 奥迪股份公司 | Tool for producing an internal thread in a preformed hole in a workpiece |
| US10525542B2 (en) | 2016-08-10 | 2020-01-07 | Audi Ag | Tool for producing an internal thread in a workpiece pilot hole |
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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 |