CN110681892A - Cup joint formula pagoda bores - Google Patents
Cup joint formula pagoda bores Download PDFInfo
- Publication number
- CN110681892A CN110681892A CN201911078911.5A CN201911078911A CN110681892A CN 110681892 A CN110681892 A CN 110681892A CN 201911078911 A CN201911078911 A CN 201911078911A CN 110681892 A CN110681892 A CN 110681892A
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- China
- Prior art keywords
- drill
- head
- outer cutting
- pagoda
- cutting body
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- Pending
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- 238000005520 cutting process Methods 0.000 claims abstract description 46
- 238000005553 drilling Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 229910001315 Tool steel Inorganic materials 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/009—Stepped drills
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention relates to a socket joint type pagoda drill, which comprises: a drill body and a drill handle; the drill body comprises a drill head, an outer cutting body and an inner drill body, a connecting part is arranged at the tail of the drill head, the connecting part is provided with a conical boss, the head of the outer cutting body is provided with a through hole, the through hole is provided with a conical surface, the inner part of the outer cutting body is a hollow cavity, a positioning groove is arranged in the hollow cavity, the inner drill body and the drill handle are integrated, the head of the inner drill body is provided with a connecting hole, and the head of the inner drill body is provided with a raised limiting. The invention divides the drill body into a drill head, an outer cutting body and an inner drill body, the drill head and the outer cutting body are replaceable fittings, the new drill head and the new outer cutting body can be detached and replaced after being worn, the drill head and the outer cutting body can also be changed into composite materials with better cutting performance, and the inner drill body and the drill handle adopt common high-speed tool steel, thereby improving the wear performance, prolonging the service life and saving the production cost.
Description
Technical Field
The invention belongs to the technical field of hardware tools, and particularly relates to a sleeved pagoda drill.
Background
The pagoda drill is also called a step drill and is mainly used for drilling and processing thin plates, one drill bit can replace a plurality of drill bits to be used, and holes with different diameters can be processed according to requirements; the abrasion of the cutting edge is large when the drill hole is drilled, and the pagoda drill can be directly scrapped when the pagoda drill can not be sharpened, so that great waste is formed.
Disclosure of Invention
In view of this, the technical problem to be solved by the present invention is to provide a sleeved type pagoda drill, which solves the problem that the existing pagoda drill is not easy to repair after being worn.
In order to solve the technical problem, the invention discloses a socket type pagoda drill, which comprises: a drill body and a drill handle; the drill body comprises a drill head, an outer cutting body and an inner drill body, a connecting part is arranged at the tail of the drill head, the connecting part is provided with a conical boss, the head of the outer cutting body is provided with a through hole, the through hole is provided with a conical surface, the inner part of the outer cutting body is a hollow cavity, a positioning groove is arranged in the hollow cavity, the inner drill body and the drill handle are integrated, the head of the inner drill body is provided with a connecting hole, and the head of the inner drill body is provided with a raised limiting.
Furthermore, the connecting part is provided with an external thread, and the rotation direction of the external thread is left-handed; the connecting hole is provided with an internal thread.
Further, the outer cutting body is provided with four cutting edges, and the cross section of the chip groove is in a hook shape.
Further, the inner drill body is a conical body.
Furthermore, a round block is arranged at the joint of the inner drill body and the drill handle, and the diameter of the round block is larger than that of the tail end of the inner drill body.
Furthermore, the limiting block is provided with a circular arc surface.
Further, the drilling head is provided with a transverse cutting edge chip groove.
Compared with the prior art, the application can obtain the following technical effects:
the invention divides the drill body into a drill head, an outer cutting body and an inner drill body, the drill head and the outer cutting body are replaceable fittings, the new drill head and the new outer cutting body can be detached and replaced after being worn, the drill head and the outer cutting body can also be changed into composite materials with better cutting performance, and the inner drill body and the drill handle adopt common high-speed tool steel, thereby improving the wear performance, prolonging the service life and saving the production cost.
Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a general schematic diagram of a bell socket pagoda drill according to an embodiment of the present invention;
fig. 2 is an exploded view of a bell socket pagoda drill according to an embodiment of the present invention.
Reference symbols of the drawings
The drill comprises a drill handle 1, a drill head 2, an outer cutting body 3, an inner drill body 4, a connecting part 5, a through hole 6, a positioning groove 7, a connecting hole 8, a limiting block 9, a chip groove 10, a circular block 11, a transverse cutting edge chip groove 12, a conical boss 13 and a conical surface 14.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
Referring to fig. 1 and 2, fig. 1 is a schematic overall view of a socket type pagoda drill according to an embodiment of the present invention; fig. 2 is an exploded view of a bell socket pagoda drill according to an embodiment of the present invention. A bell-spigot pagoda drill comprising: a drill body and a drill handle 1; the drill body comprises a drill head 2, an outer cutting body 3 and an inner drill body 4, a connecting part 5 is arranged at the tail part of the drill head 2, the connecting part 5 is provided with a conical boss 13, the head part of the outer cutting body 3 is provided with a through hole 6, the through hole is provided with a conical surface 14, the inner part of the outer cutting body 3 is a hollow cavity and is internally provided with a positioning groove 7, the inner drill body 4 and the drill handle 1 are integrated, the head part of the inner drill body 4 is provided with a connecting hole 8, and the head part of the inner drill body 4 is provided with a raised.
Connecting portion 5 is equipped with the external screw thread, and the external screw thread direction of rotation is the levogyration, and the blade of pagoda brill is towards the right side, and then the direction of rotation of pagoda brill is dextrorotation, and the rotation direction of pagoda brill is opposite with the rotatory fastening direction of drilling head 2: the conical boss 13 is matched with the conical surface 14 for positioning to ensure that the drilling head 2 is coaxial with the outer cutting body 3 and the inner drilling body 4; the connecting hole 8 is provided with an internal thread; the external cutting body 3 is provided with four cutting edges, and the cross section of the chip groove 10 is in a hook shape; the inner drill body 4 is a conical body; the joint of the inner drill body 4 and the drill handle 1 is provided with a circular block 11, the diameter of the circular block 11 is larger than that of the tail end of the inner drill body 4, and when the inner drill body 4 is matched with the outer cutting body 3, the circular block 11 can block the joint of the inner drill body and the outer cutting body to prevent drill cuttings from falling into the joint; the two limiting blocks 9 are provided with arc surfaces, and are separated by 180 degrees and matched with the positioning grooves 7; the drill head 2 is provided with transverse cutting edge chip grooves 12, and the transverse cutting edge chip grooves 12 are symmetrical along a central axis.
The invention divides the drill body into a drill head 2, an outer cutting body 3 and an inner drill body 4, the inner drill body 4 is matched with the outer cutting body 3, a connecting part 5 of the drill head 2 passes through a through hole 6 to be connected and fixed with a connecting hole 8 of the inner drill body 4, the drill head 2 and the outer cutting body 3 are replaceable fittings, the drill head 2 and the outer cutting body 3 which are newly replaced can be detached after being worn, and the drill head 2 and the outer cutting body 3 can also be changed into composite materials with better cutting performance, and the inner drill body 4 and the drill handle 1 adopt common high-speed tool steel, thereby improving the wear performance, prolonging the service life and saving the production cost.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A bell-spigot pagoda drill comprising: a drill body and a drill handle;
the method is characterized in that: the drill body comprises a drill head, an outer cutting body and an inner drill body, a connecting part is arranged at the tail of the drill head and provided with a conical boss, a through hole is formed in the head of the outer cutting body and provided with a conical surface, a hollow cavity is formed in the outer cutting body, a positioning groove is formed in the inner portion of the outer cutting body, the inner drill body and the drill handle are integrated, a connecting hole is formed in the head of the inner drill body, and a protruding limiting block is arranged at the tail of the inner drill body.
2. The socketed pagoda drill of claim 1, wherein: the connecting part is provided with an external thread, and the rotation direction of the external thread is left-handed; the connecting hole is provided with an internal thread.
3. The socketed pagoda drill of claim 1, wherein: the external cutting body is provided with four cutting edges, and the cross section of the chip groove is in a hook shape.
4. The socketed pagoda drill of claim 1, wherein: the inner drill body is a conical body.
5. The socketed pagoda drill of claim 1, wherein: the connection part of the inner drill body and the drill handle is provided with a round block, and the diameter of the round block is larger than that of the tail end of the inner drill body.
6. The socketed pagoda drill of claim 1, wherein: the limiting block is provided with an arc surface.
7. The socketed pagoda drill of claim 1, wherein: the drilling head is provided with a transverse cutting edge chip groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078911.5A CN110681892A (en) | 2019-11-07 | 2019-11-07 | Cup joint formula pagoda bores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911078911.5A CN110681892A (en) | 2019-11-07 | 2019-11-07 | Cup joint formula pagoda bores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110681892A true CN110681892A (en) | 2020-01-14 |
Family
ID=69115584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911078911.5A Pending CN110681892A (en) | 2019-11-07 | 2019-11-07 | Cup joint formula pagoda bores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110681892A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878147A (en) * | 2021-10-25 | 2022-01-04 | 丹阳市奥宏工具有限公司 | Pagoda-shaped drill bit and production process thereof |
| CN114083027A (en) * | 2021-11-02 | 2022-02-25 | 江苏力策工具有限公司 | High-strength combined drill bit structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0811449A2 (en) * | 1996-06-05 | 1997-12-10 | Kabushiki Kaisha Miyanaga | Multistage bit and stopper for said multistage bit |
| JP2007203396A (en) * | 2006-01-31 | 2007-08-16 | Jefcom Kk | Steped drill |
| US20120207557A1 (en) * | 2011-02-15 | 2012-08-16 | Irwin Industrial Tool Company | Step drill bit |
| US8388280B1 (en) * | 2007-10-04 | 2013-03-05 | Orlo Ison | Step drill bit |
| US20140023445A1 (en) * | 2012-07-18 | 2014-01-23 | Milwaukee Electric Tool Corporation | Power tool accessory |
| CN106077765A (en) * | 2016-06-17 | 2016-11-09 | 徐州金港起重机制造有限公司 | A kind of high-speed steel step drill |
| CN206824716U (en) * | 2017-04-18 | 2018-01-02 | 深圳市致尚科技有限公司 | A kind of replaceable blade hair style step drill |
| CN210877723U (en) * | 2019-11-07 | 2020-06-30 | 丹阳市杰锐特种工具制造有限公司 | Cup joint formula pagoda bores |
-
2019
- 2019-11-07 CN CN201911078911.5A patent/CN110681892A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0811449A2 (en) * | 1996-06-05 | 1997-12-10 | Kabushiki Kaisha Miyanaga | Multistage bit and stopper for said multistage bit |
| JP2007203396A (en) * | 2006-01-31 | 2007-08-16 | Jefcom Kk | Steped drill |
| US8388280B1 (en) * | 2007-10-04 | 2013-03-05 | Orlo Ison | Step drill bit |
| US20120207557A1 (en) * | 2011-02-15 | 2012-08-16 | Irwin Industrial Tool Company | Step drill bit |
| US20140023445A1 (en) * | 2012-07-18 | 2014-01-23 | Milwaukee Electric Tool Corporation | Power tool accessory |
| CN106077765A (en) * | 2016-06-17 | 2016-11-09 | 徐州金港起重机制造有限公司 | A kind of high-speed steel step drill |
| CN206824716U (en) * | 2017-04-18 | 2018-01-02 | 深圳市致尚科技有限公司 | A kind of replaceable blade hair style step drill |
| CN210877723U (en) * | 2019-11-07 | 2020-06-30 | 丹阳市杰锐特种工具制造有限公司 | Cup joint formula pagoda bores |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878147A (en) * | 2021-10-25 | 2022-01-04 | 丹阳市奥宏工具有限公司 | Pagoda-shaped drill bit and production process thereof |
| CN114083027A (en) * | 2021-11-02 | 2022-02-25 | 江苏力策工具有限公司 | High-strength combined drill bit structure |
| CN114083027B (en) * | 2021-11-02 | 2022-11-08 | 江苏力策工具有限公司 | High-strength combined drill bit structure |
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