CN111168165A - An indexable thread insert - Google Patents
An indexable thread insert Download PDFInfo
- Publication number
- CN111168165A CN111168165A CN202010182756.8A CN202010182756A CN111168165A CN 111168165 A CN111168165 A CN 111168165A CN 202010182756 A CN202010182756 A CN 202010182756A CN 111168165 A CN111168165 A CN 111168165A
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- Prior art keywords
- chip breaking
- chip
- insert
- cut
- boss
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- 238000005520 cutting process Methods 0.000 claims abstract description 33
- 230000007704 transition Effects 0.000 claims description 6
- 238000003754 machining Methods 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 description 2
- 239000002173 cutting fluid Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
本发明公开了一种可转位螺纹刀片，包括刀体，刀体设有中心孔，且刀体上均匀设有三个切削刃，每个切削刃包括刀片切出工件侧和刀片切入工件侧，且刀片切出工件侧和刀片切入工件侧连接处设为刃尖，刃尖的内侧设有断屑凹槽，断屑凹槽的内侧依次设有第一断屑凸台和第二断屑凸台，且第一断屑凸台小于第二断屑凸台；第二断屑凸台的周边设有导屑槽。本发明提供了一种可转位螺纹刀片，通过设置断屑凹槽、第一断屑凸台、第二断屑凸台和导屑槽，能够将加工过程中的切屑及时排出，避免刮花已加工工件，提高了螺纹加工质量。
The invention discloses an indexable thread insert, which comprises a cutter body, the cutter body is provided with a central hole, and the cutter body is evenly provided with three cutting edges, each cutting edge includes a side where the blade cuts out of a workpiece and a side where the blade cuts into the workpiece, And the connection between the side of the blade cutting out of the workpiece and the side of the blade cutting into the workpiece is set as a cutting edge, the inner side of the cutting edge is provided with a chip breaking groove, and the inner side of the chip breaking groove is sequentially provided with a first chip breaking boss and a second chip breaking boss. The first chip breaking boss is smaller than the second chip breaking boss; the periphery of the second chip breaking boss is provided with a chip guide groove. The invention provides an indexable thread insert, which can discharge the chips in the machining process in time and avoid scratches by arranging a chip breaking groove, a first chip breaking boss, a second chip breaking boss and a chip guide groove. The workpiece has been processed to improve the quality of thread processing.
Description
Technical Field
The invention relates to the technical field of thread processing machinery equipment, in particular to an indexable threaded blade.
Background
At present, the traditional thread processing method mainly adopts a threading tool to turn threads or adopts a screw tap and a die to manually tap and sleeve and buckle. In the machining process of the thread blade in the prior art, scraps generated in the cutting process cannot be discharged in time, and the thread blade is extremely easy to wind workpieces and scrape the workpieces, so that the machining quality of threads is influenced.
Therefore, how to provide an indexable threaded insert capable of improving the thread machining quality is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides an indexable threading insert, which can discharge chips in a machining process in time by arranging a chip breaking groove, a first chip breaking boss, a second chip breaking boss and a chip guide groove, so that a machined workpiece is prevented from being scratched, and the thread machining quality is improved.
In order to achieve the purpose, the invention adopts the following technical scheme: an indexable threaded blade comprises a blade body, wherein the blade body is provided with a central hole, three cutting edges are uniformly arranged on the blade body, each cutting edge comprises a blade cut-in workpiece side and a blade cut-out workpiece side, the joint of the blade cut-in workpiece side and the blade cut-out workpiece side is set as a blade tip, the inner side of the blade tip is provided with a chip breaking groove, the inner side of the chip breaking groove is sequentially provided with a first chip breaking boss and a second chip breaking boss, and the first chip breaking boss is smaller than the second chip breaking boss; and chip guide grooves are formed in the periphery of the second chip breaking boss.
The indexable threaded blade disclosed by the invention has the advantages that firstly, the chip containing space on the side of the cut workpiece of the blade is increased by arranging the chip breaking groove, the friction resistance of chips on the side of the cut workpiece of the blade is reduced, the heat dissipation space is increased, the cutting fluid can fully enter the groove area for cooling and lubricating, secondly, the first chip breaking boss close to the blade tip can ensure that the chips can be effectively broken when the cutting depth of the blade body is small, and the chips can be timely picked up and curled to reduce the curvature radius when the cutting depth is large; finally, with the increase of the cutting depth, the chips generated by cutting become thin and wide, when the thin and wide chips flow from the blade tip to the side of the workpiece cut by the blade, the chips can be curled to a certain extent and continuously move backwards through the picking of the first chip breaking boss, when the chips reach the second chip breaking boss, the chips are blocked to be curled secondarily, the curvature radius is further reduced, the chips are smoothly discharged, the chips are prevented from winding the workpiece or scraping the workpiece, and the thread machining quality is improved.
Preferably, the first chip breaking boss is peak-shaped, and the first chip breaking boss and the chip breaking groove are in smooth transition.
Preferably, the second chip breaking boss is peak-shaped, and the second chip breaking boss and the chip guide groove are in smooth transition.
Preferably, the second chip breaking boss comprises a first curved surface, a second curved surface and a ridge, wherein the first curved surface and the second curved surface are integrally connected, and the ridge is arranged between the first curved surface and the second curved surface.
preferably, the first curved surface is the side close to the side of the blade for cutting the workpiece, the included angle between the first curved surface and the vertical line of the cutter body is α, the second curved surface is the side far away from the side of the blade for cutting the workpiece, the included angle between the second curved surface and the vertical line of the cutter body is set to be β, and alpha is larger than β.
preferably, 80 DEG- α + β -120 deg.
preferably, α is 59 ° and β is 40 °.
Preferably, the length along the line where the blade cuts out of the workpiece side is greater than the length along the line where the blade cuts into the workpiece side.
Preferably, the chip guide groove extends downwards and outwards along the side of the blade cutting workpiece, and chip discharge is facilitated.
According to the technical scheme, compared with the prior art, the indexable thread machining is provided, chips in the machining process can be timely discharged by arranging the chip breaking groove, the first chip breaking boss, the second chip breaking boss and the chip guide groove, the machined workpiece is prevented from being scratched, and the thread machining quality is improved.
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, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram provided by the present invention.
Figure 2 the accompanying drawing is an enlarged view of the cutting edge provided by the present invention.
Figure 3 is a cross-sectional view of H-H provided by the present invention.
FIG. 4 is a sectional view of the invention providing G-G.
Wherein the reference symbols are:
1-cutter body, 2-center hole, 3-cutting edge, 31-cutter cut-out workpiece side, 32-cutter cut-in workpiece side, 33-cutting edge, 34-chip breaking groove, 35-first chip breaking boss, 36-second chip breaking boss, 37-chip guide groove, 361-first curved surface, 362-second curved surface and 363-ridge.
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.
As shown in fig. 1, the embodiment of the invention discloses an indexable threaded insert, which comprises a cutter body 1, wherein the cutter body 1 is provided with a central hole 2, three cutting edges 3 are uniformly arranged on the cutter body 1, each cutting edge 3 comprises an insert cut-out workpiece side 31 and an insert cut-in workpiece side 32, the joint of the insert cut-out workpiece side 31 and the insert cut-in workpiece side 32 is provided with an edge 33, the inner side of the edge 33 is provided with a chip breaking groove 34, the inner side of the chip breaking groove 34 is sequentially provided with a first chip breaking boss 35 and a second chip breaking boss 36, and the first chip breaking boss 35 is smaller than the second chip breaking boss 36; the periphery of the second chip breaking boss 36 is provided with a chip guide groove 37.
The indexable threaded insert disclosed in the embodiment has the advantages that firstly, the chip containing space of the cut workpiece side 31 of the insert is increased by arranging the chip breaking groove 34, the frictional resistance of chips on the cut workpiece side 31 of the insert is reduced, the heat dissipation space is increased, the cutting fluid can fully enter the chip breaking groove 34 area for cooling and lubricating, secondly, the first chip breaking boss 35 close to the blade tip 33 can ensure that the cutter body 1 can effectively break chips when the cutting depth is small, and can timely pick up the chips and promote the chips to curl to reduce the curvature radius when the cutting depth is large; finally, the chips generated by cutting become thin and wide along with the increase of the cutting depth, when the thin and wide chips flow from the blade tip to the side of the blade for cutting the workpiece, the chips are picked up by the first chip breaking boss to generate certain curling and continuously move backwards, when the chips reach the second chip breaking boss 36, the chips are blocked to generate secondary curling, the curvature radius is further reduced, the chips are smoothly discharged, the chips are prevented from winding the workpiece or scraping the workpiece, and the thread machining quality is improved.
the first chip breaking boss 35 is in a mountain peak shape, the first chip breaking boss 35 is in smooth transition with the chip breaking groove 34, the second chip breaking boss 36 is in a mountain peak shape, the second chip breaking boss 36 is in smooth transition with the chip guide groove 37, the second chip breaking boss 36 comprises a first curved surface 361, a second curved surface 362 and a ridge 363 arranged between the first curved surface 361 and the second curved surface 362 which are integrally connected, the first curved surface 361 is close to the side of the blade cutting workpiece side 31, an included angle between the first curved surface 361 and a vertical line of the cutter body 1 is set to be alpha, the second curved surface 362 is far away from the side 31 of the blade cutting workpiece, an included angle between the second curved surface 362 and the vertical line of the cutter body 1 is set to be β, alpha is 59 degrees and β is 40 degrees, the second chip breaking boss 36 is in an asymmetric structure, a chip containing space at the second curved surface far away from the side of the blade cutting workpiece side is larger, chips are guided to move to the second curved surface, the length along the line of the workpiece side 31 is larger than the blade side 32, and the chip guide groove 37 extends to the outer side of the blade to facilitate the chip cutting and the chip cutting.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An indexable threaded insert is characterized by comprising an insert body (1), wherein the insert body (1) is provided with a central hole (2), three cutting edges (3) are uniformly arranged on the insert body (1), each cutting edge (3) comprises an insert cut-in workpiece side (32) and an insert cut-out workpiece side (31), a connecting part of the insert cut-in workpiece side (32) and the insert cut-out workpiece side (31) is provided with an edge tip (33), one side, close to the central hole (2), of the edge tip (33) is provided with a chip breaking groove (34), the other side of the chip breaking groove (34) is sequentially provided with a first chip breaking boss (35) and a second chip breaking boss (36), and the area of the first chip breaking boss (35) is smaller than that of the second chip breaking boss (36); and the periphery of the second chip breaking boss (36) is provided with a chip guide groove (37).
2. An indexable threaded insert according to claim 1, characterized in that the first chip breaking projection (35) is mountain-shaped and the first chip breaking projection (35) transitions smoothly with the chip breaking groove (34).
3. An indexable threaded insert according to claim 2, characterized in that the second chip breaking projection (36) is peak-shaped and the second chip breaking projection (36) transitions smoothly with the chip guide groove (37).
4. An indexable threaded insert according to claim 3, wherein the second chip breaking projection (36) comprises a first curved surface (361), a second curved surface (362) and a ridge (363) arranged between the first curved surface (361) and the second curved surface (362) which are integrally connected.
5. an indexable threaded insert according to claim 4, characterized in that the first curved surface (361) is the side near the side (31) of the insert where the work piece is cut out and the angle to the vertical of the body (1) is set to α, the second curved surface (362) is the side near the side (32) where the insert is cut into the work piece and the angle to the vertical of the body (1) is set to β, and α is larger than β.
6. an indexable threaded insert according to claim 5, wherein 80 ° ≦ α + β ≦ 120 °.
7. an indexable threaded insert according to claim 6, wherein α is 59 ° and β is 40 °.
8. An indexable threaded insert according to claim 7, wherein the cut-out workpiece side (31) of the insert is of greater linear length than the cut-in workpiece side (32) of the insert.
9. An indexable threaded insert according to claim 8, characterized in that the chip flutes (37) extend outwardly and downwardly along the cut-out workpiece side (31) of the insert.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010182756.8A CN111168165A (en) | 2020-03-16 | 2020-03-16 | An indexable thread insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010182756.8A CN111168165A (en) | 2020-03-16 | 2020-03-16 | An indexable thread insert |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111168165A true CN111168165A (en) | 2020-05-19 |
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ID=70648498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010182756.8A Pending CN111168165A (en) | 2020-03-16 | 2020-03-16 | An indexable thread insert |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111168165A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116213772A (en) * | 2021-12-06 | 2023-06-06 | 台州市锐安硬质合金工具有限公司 | A precision grooving blade |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5044839A (en) * | 1989-08-31 | 1991-09-03 | Sumitomo Electric Industries, Ltd. | Throw away insert |
| US6293738B1 (en) * | 1997-09-03 | 2001-09-25 | Kennametal Pc Inc. | Thread cutting bit |
| CN1557594A (en) * | 2004-01-30 | 2004-12-29 | 株洲硬质合金集团有限公司 | Cutting blade for machining screw thread |
| CN102006954A (en) * | 2008-04-17 | 2011-04-06 | 株式会社钨钛合金 | Cutting insert |
| CN211966221U (en) * | 2020-03-16 | 2020-11-20 | 台州市锐安硬质合金工具有限公司 | Indexable threaded blade |
-
2020
- 2020-03-16 CN CN202010182756.8A patent/CN111168165A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5044839A (en) * | 1989-08-31 | 1991-09-03 | Sumitomo Electric Industries, Ltd. | Throw away insert |
| US6293738B1 (en) * | 1997-09-03 | 2001-09-25 | Kennametal Pc Inc. | Thread cutting bit |
| CN1557594A (en) * | 2004-01-30 | 2004-12-29 | 株洲硬质合金集团有限公司 | Cutting blade for machining screw thread |
| CN102006954A (en) * | 2008-04-17 | 2011-04-06 | 株式会社钨钛合金 | Cutting insert |
| CN211966221U (en) * | 2020-03-16 | 2020-11-20 | 台州市锐安硬质合金工具有限公司 | Indexable threaded blade |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116213772A (en) * | 2021-12-06 | 2023-06-06 | 台州市锐安硬质合金工具有限公司 | A precision grooving blade |
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