CN113458462A - Stepped drill tool - Google Patents
Stepped drill tool Download PDFInfo
- Publication number
- CN113458462A CN113458462A CN202010235787.5A CN202010235787A CN113458462A CN 113458462 A CN113458462 A CN 113458462A CN 202010235787 A CN202010235787 A CN 202010235787A CN 113458462 A CN113458462 A CN 113458462A
- Authority
- CN
- China
- Prior art keywords
- cutting edge
- drilling block
- drill
- drilling
- machining
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 53
- 230000000630 rising effect Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 22
- 230000001174 ascending effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention provides a stepped drill tool which comprises a tool handle, a first drilling block and a second drilling block, wherein the first drilling block is fixedly arranged at one end of the tool handle, the second drilling block is fixedly arranged at one end of the first drilling block, which is far away from the tool handle, the diameter of the first drilling block is larger than that of the second drilling block, a first cutting edge is arranged on the first drilling block, a first chip removal groove is formed in the first drilling block from the second drilling block to one end, which is far away from the second drilling block, a second cutting edge is arranged on the second drilling block, a drill tip is arranged at one end of the second cutting edge, and a second chip removal groove is formed in the second drilling block from the drill tip to one end, which is far away from the drill tip. The stepped drill tool is used for machining a stepped hole, is different from the traditional mode of machining by using two drill bits with different outer diameters, is formed by one-step machining, and does not need to replace the drill bits, so that the coaxial precision of the stepped hole is improved, the machining error is reduced, and the machining cost is reduced.
Description
Technical Field
The invention relates to the technical field of machine tool cutters, in particular to a stepped drill cutter.
Background
At present, in some cavity machining parts, a stepped hole is a common composite hole (stepped hole) structure, the structure is widely applied, in some previous machining schemes, two drill bits are usually adopted to drill holes successively to complete machining, and the machining method is low in efficiency and low in machining coaxial precision.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a step drill tool.
The invention is realized by the following technical scheme:
the invention discloses a stepped drill tool which comprises a tool handle, a first drilling block and a second drilling block, wherein the first drilling block is fixedly arranged at one end of the tool handle, the second drilling block is fixedly arranged at one end of the first drilling block, which is far away from the tool handle, the diameter of the first drilling block is larger than that of the second drilling block, a first cutting edge is arranged on the first drilling block, a first chip removal groove is formed in the first drilling block from the second drilling block to one end, which is far away from the second drilling block, a second cutting edge is arranged on the second drilling block, a drill tip is arranged at one end of the second cutting edge, and a second chip removal groove is formed in the second drilling block from the drill tip to one end, which is far away from the drill tip.
Furthermore, one end, far away from the tool holder, of the first drilling block is provided with a transverse cutting edge.
Furthermore, one end of the transverse cutting edge is provided with a chamfer edge.
Furthermore, the first cutting edge is spirally raised from the end far away from the knife handle to the knife handle, and the first chip discharge groove and the first cutting edge are synchronously arranged in a spiral mode.
Furthermore, the second cutting edge is spiral ascending form setting from the drill bit tip to the one end of keeping away from the drill bit tip, just the spiral mode synchronization setting of second chip groove and second cutting edge.
The stepped drill tool has the following technical characteristics and beneficial technical effects:
the stepped drill tool is used for machining a stepped hole, is different from the traditional mode of machining by using two drill bits with different outer diameters, is formed by one-step machining, and does not need to replace the drill bits, so that the coaxial precision of the stepped hole is improved, the machining error is reduced, and the machining cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a stepped drill tool according to an embodiment of the present invention;
FIG. 2 is a schematic view of another perspective structure of a stepped drill tool according to an embodiment of the present invention;
the cutting tool comprises a tool shank 1, a first drilling block 2, a first cutting edge 21, a first chip removal groove 22, a transverse cutting edge 23, a chamfer edge 24, a second drilling block 3, a second cutting edge 31, a drill tip 32 and a second chip removal groove 33.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, in a preferred embodiment of the present invention, a step drill tool includes a holder 1, a first drilling block 2 fixedly disposed at one end of the holder 1, and a second drilling block 3 fixedly disposed at one end of the first drilling block 2 away from the holder 1, wherein a diameter of the first drilling block 2 is larger than a diameter of the second drilling block 3, the first drilling block 2 is provided with a first cutting edge 21, the first drilling block 2 is provided with a first chip removal groove 22 from the second drilling block 3 to the end away from the second drilling block 3, the second drilling block 3 is provided with a second cutting edge 31, one end of the second cutting edge 31 is provided with a drill tip 32, and the second drilling block 3 is provided with a second chip removal groove 33 from the drill tip 32 to the end away from the drill tip 32.
According to a specific embodiment, the first drilling block 2 is provided with a transverse cutting edge 23 at the end remote from the holder 1.
According to a particular embodiment, the transverse cutting edge 23 is provided at one end with a chamfer edge 24.
According to a specific embodiment, the first cutting edge 21 is spirally raised from one end away from the shank 1 in the direction of the shank 1, and the first chip groove 22 and the first cutting edge 21 are arranged in synchronization with each other in a spiral manner.
According to a specific embodiment, the second cutting edge 31 is arranged in a spiral ascending shape from the drill tip 32 to the end far away from the drill tip 32, and the second chip flutes 33 are arranged in synchronization with the spiral of the second cutting edge 31.
Further explaining the working principle of the embodiment is as follows:
in practice, for the machining of a single through hole, the operator may first drill a through hole in the workpiece through the drill tip 32 and the second cutting edge 31, and then may deburr the aperture of the through hole through the transverse cutting edge 23. For machining the trapezoidal hole, an operator can firstly drill a first through hole on the workpiece through the drill tip 32 and the second cutting edge 31, and then drill a second through hole on the workpiece through the transverse cutting edge 23, the chamfering edge 24 and the first cutting edge 21, wherein the first through hole and the second through hole are machined at one time, and the coaxial precision is high.
The stepped drill tool has the following technical characteristics and beneficial technical effects:
the stepped drill tool is used for machining a stepped hole, is different from the traditional mode of machining by using two drill bits with different outer diameters, is formed by one-step machining, and does not need to replace the drill bits, so that the coaxial precision of the stepped hole is improved, the machining error is reduced, and the machining cost is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. The utility model provides a step drill cutter, its characterized in that, includes handle of a knife, the fixed first drilling piece of locating handle of a knife one end and the fixed first drilling piece of locating of handle of a knife one end and keeps away from the second drilling piece of handle of a knife one end, first drilling piece diameter is greater than second drilling piece diameter, be equipped with first cutting edge on the first drilling piece, first drilling piece is equipped with first chip groove to keeping away from second drilling piece one end from the second drilling piece, be equipped with the second cutting edge on the second drilling piece, second cutting edge one end is equipped with the drill bit pointed end, the second chip groove has been seted up to the one end of keeping away from the drill bit pointed end to the second drilling piece.
2. The stepped drill tool of claim 1, wherein the first drilling block has a transverse cutting edge at an end remote from the shank.
3. The stepped drill tool of claim 2, wherein the transverse cutting edge is provided with a chamfer edge at one end.
4. The step drill tool according to claim 1, wherein the first cutting edge is provided in a spirally rising manner from an end thereof away from the holder in the direction of the holder, and the first chip groove is provided in synchronization with the first cutting edge in a spiral manner.
5. The step drill tool according to claim 1, wherein the second cutting edge is spirally raised from the drill tip to an end away from the drill tip, and the second chip flutes are arranged in synchronization with the spiral pattern of the second cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235787.5A CN113458462A (en) | 2020-03-30 | 2020-03-30 | Stepped drill tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010235787.5A CN113458462A (en) | 2020-03-30 | 2020-03-30 | Stepped drill tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113458462A true CN113458462A (en) | 2021-10-01 |
Family
ID=77864821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010235787.5A Pending CN113458462A (en) | 2020-03-30 | 2020-03-30 | Stepped drill tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113458462A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4299221A1 (en) * | 2022-06-28 | 2024-01-03 | Hilti Aktiengesellschaft | Metal drill bit and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617814U (en) * | 1992-08-06 | 1994-03-08 | 孝喜 堂田 | Step drill for hexagon socket head cap bolt |
| JP2007007831A (en) * | 2005-07-04 | 2007-01-18 | Osg Corp | Stepped drill |
| CN201988772U (en) * | 2010-11-27 | 2011-09-28 | 单小宁 | Drill for machining step holes |
| CN102489753A (en) * | 2011-12-07 | 2012-06-13 | 苏州阿诺精密切削技术股份有限公司 | Non-cogrooved step drill |
| CN203918039U (en) * | 2014-06-30 | 2014-11-05 | 江苏恒锋工具有限公司 | Combination subland drill |
| CN204171410U (en) * | 2014-08-28 | 2015-02-25 | 阳山县联合铸锻有限公司 | A kind of compound fluted drill |
| CN104607700A (en) * | 2015-02-02 | 2015-05-13 | 苏州阿诺精密切削技术股份有限公司 | Step hole forming drill |
| CN204396999U (en) * | 2015-01-20 | 2015-06-17 | 浙江新亚工具有限公司 | A kind of Double-head twist drill |
| CN211840295U (en) * | 2020-03-30 | 2020-11-03 | 深圳市西科技术有限公司 | Stepped drill tool |
-
2020
- 2020-03-30 CN CN202010235787.5A patent/CN113458462A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617814U (en) * | 1992-08-06 | 1994-03-08 | 孝喜 堂田 | Step drill for hexagon socket head cap bolt |
| JP2007007831A (en) * | 2005-07-04 | 2007-01-18 | Osg Corp | Stepped drill |
| CN201988772U (en) * | 2010-11-27 | 2011-09-28 | 单小宁 | Drill for machining step holes |
| CN102489753A (en) * | 2011-12-07 | 2012-06-13 | 苏州阿诺精密切削技术股份有限公司 | Non-cogrooved step drill |
| CN203918039U (en) * | 2014-06-30 | 2014-11-05 | 江苏恒锋工具有限公司 | Combination subland drill |
| CN204171410U (en) * | 2014-08-28 | 2015-02-25 | 阳山县联合铸锻有限公司 | A kind of compound fluted drill |
| CN204396999U (en) * | 2015-01-20 | 2015-06-17 | 浙江新亚工具有限公司 | A kind of Double-head twist drill |
| CN104607700A (en) * | 2015-02-02 | 2015-05-13 | 苏州阿诺精密切削技术股份有限公司 | Step hole forming drill |
| CN211840295U (en) * | 2020-03-30 | 2020-11-03 | 深圳市西科技术有限公司 | Stepped drill tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4299221A1 (en) * | 2022-06-28 | 2024-01-03 | Hilti Aktiengesellschaft | Metal drill bit and method |
| WO2024002673A1 (en) * | 2022-06-28 | 2024-01-04 | Hilti Aktiengesellschaft | Metal drill and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204639254U (en) | A kind of carbide drill reaming and milling composite cutter | |
| CN208067391U (en) | A kind of brill milling compound tool | |
| CN207239240U (en) | A kind of quick drill and functions of reaming, chamfering knife | |
| CN113458462A (en) | Stepped drill tool | |
| CN113210648A (en) | Automobile hub composite cutter and air hole one-step forming method | |
| CN211840295U (en) | Stepped drill tool | |
| CN216176857U (en) | High-efficiency spiral groove multi-aperture cutting drilling tool | |
| CN207414440U (en) | A kind of hard alloy drills and reams integrated knife | |
| CN216028148U (en) | Combined tool for machining exhaust manifold of automobile engine | |
| CN205218138U (en) | Flat brill milling cutter | |
| CN213672029U (en) | Hole machining cutter for numerical control machine tool | |
| CN201320625Y (en) | Spiral drill reamer | |
| CN209830377U (en) | Wire clamping drill | |
| CN216938577U (en) | Inner-cooling forming drill for machining inner hole of stainless steel valve seat | |
| CN105252089A (en) | Precision cutting tool for high-hardness die steel | |
| CN216541013U (en) | Composite drill bit for lathe | |
| CN218964137U (en) | Novel bore reamer | |
| CN217727373U (en) | Diamond reamer | |
| CN220612411U (en) | Efficient drilling and milling chamfering tool | |
| CN216325582U (en) | Reamer for processing circular arc | |
| CN220387991U (en) | Inner cooling step forming drill for processing inner hole of aluminum alloy motor shell | |
| CN217749496U (en) | Cutter for machining valve taper hole | |
| CN216176919U (en) | Composite cutter for processing axial hole of camshaft | |
| CN213674575U (en) | Novel three-edge woodworking step drill | |
| CN212823117U (en) | Shaping reamer |
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 |