CN108098083A - Combined tap and drill - Google Patents
Combined tap and drill Download PDFInfo
- Publication number
- CN108098083A CN108098083A CN201711446482.3A CN201711446482A CN108098083A CN 108098083 A CN108098083 A CN 108098083A CN 201711446482 A CN201711446482 A CN 201711446482A CN 108098083 A CN108098083 A CN 108098083A
- Authority
- CN
- China
- Prior art keywords
- screw tap
- drill
- combined
- tap body
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/06—Taps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/20—Thread-cutting tools; Die-heads combined with other tools, e.g. drills
Abstract
The invention discloses a kind of combined tap and drills, belong to machine tools design and manufacturing technology field.A kind of brill that can guarantee internal thread machining quality is provided and attacks integral combined tap and drill.The combined tap and drill includes screw tap body, and pilot bore hole cutting edge is additionally provided in the leading end portion of the screw tap body, and the bottom outlet before tapping is drilled under the cooperation of the pilot bore hole cutting edge during tapping simultaneously by the screw tap body.
Description
Technical field
The present invention relates to a kind of combined tap and drills, belong to machine tools design and manufacturing technology field.
Background technology
The processing method of traditional internal thread is first to process thread Pilot hole, Ran Houzai with the drill bit that diameter of thread is adapted
Threaded screw thread is removed with screw tap.Its shortcoming is：Required lathe and process is more, and process is disperseed, time of more bit change and screw tap
Number is frequent, and not only productivity is low, but also the concentricity of drill bit and screw tap is difficult to ensure that after tool changing, influences product quality, is being produced
On cause inconvenience.
The content of the invention
The technical problems to be solved by the invention are：A kind of brill that can guarantee internal thread machining quality is provided and attacks integral answer
Plying is bored.
Used technical solution is to solve above-mentioned technical problem：A kind of combined tap and drill, including screw tap body, described
The leading end portion of screw tap body is additionally provided with pilot bore hole cutting edge, and the bottom outlet before tapping is drawn by the screw tap body described
It leads and during tapping while is drilled under the cooperation of drilling cutting edge.
The beneficial effects of the invention are as follows：The application in the leading end portion of existing screw tap body by setting a pilot bore hole
Cutting edge, and make the bottom outlet before tapping by the screw tap body under the cooperation of the pilot bore hole cutting edge in tapping
It is drilled with simultaneously in the process.The concentricity problem occurred when so both having overcome secondary operation, at the same in turn avoid bottom outlet drill with
The frequent replacement of tapping tool, both improves production efficiency, in turn ensures the quality of internal thread machining.
It is further that projection of the pilot bore hole cutting edge in the axial cross section of the screw tap body is in ellipse
Shape, the long axis of the ellipse is perpendicular to the longitudinal center line of screw tap body.
Said program it is preferable that, in the axial centre of the pilot bore hole cutting edge and the screw tap body of ellipse
The infall of line is additionally provided with the guiding sharp to lordosis.
It is further that at least two spiral helicine chip spaces are additionally provided on the lateral wall of the screw tap body, respectively
The sum of the length of chip space described in part in one cross section of same ground account for screw tap body same position perimeter of section 0.55~
0.65。
Said program it is preferable that, chip space described in each item circumferentially on the lateral wall of the screw tap body
Cloth.
It is further that the combined tap and drill further includes connecting taper shank, throwing of the connecting taper shank in its cross section
Shadow is in the square of rounding off.
Description of the drawings
Fig. 1 is the structure diagram of combined tap and drill of the present invention.
In figure mark for：Screw tap body 1, pilot bore hole cutting edge 2, long axis 3, longitudinal center line 4, guiding sharp 5, chip removal
Slot 6, connecting taper shank 7.
Specific embodiment
It is that a kind of brill that can guarantee internal thread machining quality provided by the invention attacks integral combined tap and drill as shown in Figure 1.
The combined tap and drill includes screw tap body 1, and pilot bore hole cutting edge 2, tapping are additionally provided in the leading end portion of the screw tap body
Preceding bottom outlet is bored under the cooperation of the pilot bore hole cutting edge 2 during tapping simultaneously by the screw tap body 1
If.The application makes the bottom before tapping by setting a pilot bore hole cutting edge 2 in the leading end portion of existing screw tap body 1
Hole is drilled under the cooperation of the pilot bore hole cutting edge 2 during tapping simultaneously by the screw tap body 1.So
Both the concentricity problem occurred during secondary operation had been overcome, while has in turn avoided bottom outlet and drills frequent replacement with tapping tool,
Both production efficiency is improved, in turn ensures the quality of internal thread machining.
In the above embodiment, in order to ensure the cutting quality of bottom outlet, while drilling described herein is adapted to again with attacking
The characteristics of silk is carried out at the same time, throwing of the application by the pilot bore hole cutting edge 2 in the axial cross section of the screw tap body 1
Shadow sets ovalisation, and makes the long axis 3 of the ellipse perpendicular to the longitudinal center line 4 of screw tap body 1.It is at this point, preferred
Structure be the longitudinal center line 4 of the pilot bore hole cutting edge 2 and the screw tap body 1 of ellipse infall be additionally provided with to
The guiding sharp 5 of lordosis.
Since drilling while tapping with carrying out, thus need the chip discharged should accordingly can more, while the row of drilling
Bits are easier the chip removal for stopping tapping, for this purpose, the application improves on the basis of existing chip space, i.e., in the screw tap sheet
At least two spiral helicine chip spaces 6 are additionally provided on the lateral wall of body 1, the chip space 6 described in each part is in one cross section of same ground
The sum of interior length accounts for the 0.55~0.65 of 1 same position perimeter of section of screw tap body.The characteristics of using for reference existing chip removal, each item institute
The chip space 6 stated is circumferentially uniformly distributed on the lateral wall of the screw tap body 1.
Further, installation of the herein described combined tap and drill in equipment for convenience, the combined tap and drill also wrap
Connecting taper shank 7 is included, projection of the connecting taper shank 7 in its cross section is in the square of rounding off.
In conclusion the brill of the present invention attacks integral composite screw screw tap by combining augers and spiral tap one
It rises, the work efficiency of machining internal thread can be effectively improved, while product quality is ensured, additionally it is possible to reduce production cost.
Embodiment one
As shown in Figure 1, the brill of this example, which attacks integral composite screw screw tap, includes square connecting taper shank and spiral tap, spiral shell
Rotary drill is formed, and augers carries pilot bore hole cutting edge, is axially set along it by augers and spiral tap same
Spiral slot is integrally formed chip space.
Bore the combining form for attacking the blade of integral composite screw screw tap using augers and spiral tap.Especially in spiral
With guiding sword at the top of drill bit, when drilling, has certralizing ability, and caudal peduncle is equipped with tetragonal structure, to the existing folder of quick-clamping company
Tool plays the role of quick despatch.Threaded screw thread can be realized without tool changing after drilling, scattered process is rationally concentrated, contract
Short process number, simplifies flow, eliminates clamping tool change time, reduce the number of special purpose machine tool and special fixture, contracts
Short production line, simplifies equipment Design, improves production efficiency；And it bores and attacks the essence that integral structure also assures its processing
Degree, so as to ensure that product quality.
Claims (6)
1. a kind of combined tap and drill, including screw tap body (1), it is characterised in that：It is additionally provided in the leading end portion of the screw tap body
Pilot bore hole cutting edge (2), the bottom outlet before tapping is by the screw tap body (1) in the pilot bore hole cutting edge (2)
It is drilled with simultaneously during tapping under cooperation.
2. combined tap and drill according to claim 1, it is characterised in that：The pilot bore hole cutting edge (2) is in the silk
The projection bored in the axial cross section of body (1) is oval, and the long axis (3) of the ellipse is perpendicular to the axis of screw tap body (1)
To center line (4).
3. combined tap and drill according to claim 2, it is characterised in that：In the pilot bore hole cutting edge (2) of ellipse
The guiding sharp (5) to lordosis is additionally provided with the infall of the longitudinal center line (4) of screw tap body (1).
4. according to the combined tap and drill described in claim 1,2 or 3, it is characterised in that：On the lateral wall of the screw tap body (1)
Be additionally provided at least two spiral helicine chip spaces (6), the chip space (6) described in each part it is same ground one cross section in length it
With account for the 0.55~0.65 of screw tap body (1) same position perimeter of section.
5. combined tap and drill according to claim 4, it is characterised in that：Chip space (6) described in each item is circumferentially described
It is uniformly distributed on the lateral wall of screw tap body (1).
6. combined tap and drill according to claim 5, it is characterised in that：The combined tap and drill further includes connecting taper shank (7),
Projection of the connecting taper shank (7) in its cross section is in the square of rounding off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446482.3A CN108098083A (en) | 2017-12-27 | 2017-12-27 | Combined tap and drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446482.3A CN108098083A (en) | 2017-12-27 | 2017-12-27 | Combined tap and drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108098083A true CN108098083A (en) | 2018-06-01 |
Family
ID=62213855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711446482.3A Pending CN108098083A (en) | 2017-12-27 | 2017-12-27 | Combined tap and drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108098083A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614362A (en) * | 2019-10-30 | 2019-12-27 | 扬州苏沃工具有限公司 | Manufacturing method of powder metallurgy composite screw tap |
| CN115041733A (en) * | 2022-07-13 | 2022-09-13 | 北京新风航天装备有限公司 | Tool and method for quickly repairing aluminum alloy threaded through hole thread sliding teeth under battlefield conditions |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1627402A1 (en) * | 1967-07-15 | 1970-12-10 | Stock & Co Spiralbohrer Werkze | Spiral taps |
| DE2015983A1 (en) * | 1970-03-26 | 1971-10-14 | Stock Ag R | Straight taps |
| CN2640670Y (en) * | 2003-08-28 | 2004-09-15 | 周建国 | Bit tap |
| CN201008996Y (en) * | 2007-03-22 | 2008-01-23 | 由光宇 | Multiple edged screw tap drill |
| CN101610868A (en) * | 2007-02-21 | 2009-12-23 | Osg株式会社 | The screw tap of band pilot hole drilling device |
| CN201432154Y (en) * | 2009-06-22 | 2010-03-31 | 铠钜科技股份有限公司 | Internal threading tool |
| CN102275018A (en) * | 2011-07-28 | 2011-12-14 | 锑玛(苏州)精密工具有限公司 | Drilling-tapping integrated composite screw tap |
| CN202963682U (en) * | 2012-12-10 | 2013-06-05 | 常州市海钢工具厂(普通合伙) | Cutter used for machining of threaded hole |
| CN105598509A (en) * | 2016-03-07 | 2016-05-25 | 大连理工大学 | Drill bit special for high-quality drilling of carbon fiber reinforced composite |
-
2017
- 2017-12-27 CN CN201711446482.3A patent/CN108098083A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1627402A1 (en) * | 1967-07-15 | 1970-12-10 | Stock & Co Spiralbohrer Werkze | Spiral taps |
| DE2015983A1 (en) * | 1970-03-26 | 1971-10-14 | Stock Ag R | Straight taps |
| CN2640670Y (en) * | 2003-08-28 | 2004-09-15 | 周建国 | Bit tap |
| CN101610868A (en) * | 2007-02-21 | 2009-12-23 | Osg株式会社 | The screw tap of band pilot hole drilling device |
| CN201008996Y (en) * | 2007-03-22 | 2008-01-23 | 由光宇 | Multiple edged screw tap drill |
| CN201432154Y (en) * | 2009-06-22 | 2010-03-31 | 铠钜科技股份有限公司 | Internal threading tool |
| CN102275018A (en) * | 2011-07-28 | 2011-12-14 | 锑玛(苏州)精密工具有限公司 | Drilling-tapping integrated composite screw tap |
| CN202963682U (en) * | 2012-12-10 | 2013-06-05 | 常州市海钢工具厂(普通合伙) | Cutter used for machining of threaded hole |
| CN105598509A (en) * | 2016-03-07 | 2016-05-25 | 大连理工大学 | Drill bit special for high-quality drilling of carbon fiber reinforced composite |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614362A (en) * | 2019-10-30 | 2019-12-27 | 扬州苏沃工具有限公司 | Manufacturing method of powder metallurgy composite screw tap |
| CN115041733A (en) * | 2022-07-13 | 2022-09-13 | 北京新风航天装备有限公司 | Tool and method for quickly repairing aluminum alloy threaded through hole thread sliding teeth under battlefield conditions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180601 |
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| RJ01 | Rejection of invention patent application after publication |