CN105397155A - Two-tooth countersinking tool - Google Patents
Two-tooth countersinking tool Download PDFInfo
- Publication number
- CN105397155A CN105397155A CN201510861205.3A CN201510861205A CN105397155A CN 105397155 A CN105397155 A CN 105397155A CN 201510861205 A CN201510861205 A CN 201510861205A CN 105397155 A CN105397155 A CN 105397155A
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- CN
- China
- Prior art keywords
- tool
- face
- cutter
- processed
- cylinder
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- 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
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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
Abstract
The invention belongs to the field of machining, and provides a two-tooth countersinking tool which comprises a tool body and a guiding cylinder. A cylinder body is located at the front end of the guiding cylinder, and a tapered cylinder body is located at the rear end of the guiding cylinder. A rectangular groove face is machined at the front end of the tool body, a tapered hole is formed in the center of the rectangular groove face, and the tapered cylinder body is inserted into the tapered hole from the front portion. A reverse slope is machined at the front end of a front tool face at each side of the tool body to form a rear tool face of a corresponding tool tooth, a cambered face is machined on the upper surface of the tool body to form the front tool faces of the tool teeth, and cambered faces are machined on the side faces of the tool body to form sub rear tool faces of the tool teeth; the rear tool faces and the front tool faces intersect to form main cutting edges, and the front tool faces and the sub rear tool faces intersect to form sub cutting edges. A step is further machined on the upper face of the tool body. A tool handle is machined at the rear end of the tool body and coaxial with the tapered hole, and the tool handle stretches backwards to be connected with a pneumatic tool.
Description
Technical field
The invention belongs to field of machining, relate to a kind of two teeth and draw spot facing cutter.
Background technology
When composite material parts is processed the aperture size hole larger than flood dragon, we use a kind of annular to draw hole drill usually, and this stroke of hole drill is made up of the cutter head of annular tooth and knife bar.Because the usual physical dimension of composite material parts is larger, its thickness is general all at 8 ~ 3MM, and meanwhile, the surface also often running into composite material parts is made up of irregular curved surface, therefore, use this annular to draw hole drill and just add certain difficulty when the Surface Machining hole of part.Especially when the circular hole that processing aperture size is larger, often run into the situation that annular draws hole drill cisco unity malfunction on pneumatic tools, as: because the machining hole of part is larger, the cutting output of cutter is excessive, produces larger resistance to cutting and pneumatic tools can not be rotated.Sometimes, in working angles, the serrate slot that annular also may be drawn hole drill by the chip of composite fills up and affects the normal work of cutter.
Summary of the invention
The technical problem to be solved in the present invention: provide a kind of two teeth to draw spot facing cutter, can all there will not be stifled cutter phenomenon under different operating conditions, and can smooth and easy chip removal, improve working (machining) efficiency simultaneously.
Technical scheme of the present invention: a kind of two teeth draw spot facing cutter, comprising:
Cutter hub (1) and guide cylinder (2), guide cylinder (2) front end is cylinder (12) rear end is tapering cylinder (13), cutter hub (1) front end is processed with rectangle groove face (3), tapered hole (11) is opened at rectangle groove face (3) center, and tapering cylinder (13) inserts tapered hole (11) from front and tapering cylinder (13) and tapered hole (11) interference fit;
The every rake face front end, side of cutter hub (1) is processed with the rear knife face (4) that reverse slope forms cutter tooth, the rake face (5) of Surface forming cutter tooth is processed with at the upper surface of cutter hub, the minor flank (6) of Surface forming cutter tooth is processed with in the side of cutter hub, rear knife face (4) and rake face (5) intersect, form main cutting edge (7), rake face (5) and minor flank (6) intersect, form front cutting edge (8), on cutter hub, be also processed with step (9); The rear end of cutter hub is processed with handle of a knife (10), and handle of a knife (10) is coaxial with tapered hole (11), and described handle of a knife (10) is connected with pneumatic tools backward.
Further, rear knife face (4) and cutting speed direction form °-15 °, relief angle α=10, rake face (5) and cutting speed vertical direction form °-15 °, anterior angle γ=10, and minor flank (6) and cutting speed direction form °-10 °, front clearance β=8.
Beneficial effect of the present invention: can ensure that pneumatic tools can rotate freely, all there will not be stifled cutter phenomenon under different conditions of work when processing the larger composite material parts in aperture, and can smooth and easy chip removal, working (machining) efficiency more than 2 times can be improved simultaneously.
Accompanying drawing explanation
Fig. 1 is that the present invention draws spot facing cutter perspective view.
Fig. 2 is cutter hub of the present invention (1) perspective view.
Fig. 3 is the structural representation of guide cylinder of the present invention (2).
Fig. 4 is the structural representation of cutter hub of the present invention (1).
Fig. 5 is the D-D cross-sectional schematic of Fig. 4.
Fig. 6 is the A direction view schematic diagram of Fig. 4.
Fig. 7 is the E-E cross-sectional schematic of Fig. 6.
Detailed description of the invention
Technical scheme of the present invention comprises:
Cutter hub (1) and guide cylinder (2), guide cylinder (2) front end is cylinder (12) rear end is tapering cylinder (13), cutter hub (1) front end is processed with rectangle groove face (3), tapered hole (11) is opened at rectangle groove face (3) center, and tapering cylinder (13) inserts tapered hole (11) from front and tapering cylinder (13) and tapered hole (11) interference fit;
The every rake face front end, side of cutter hub (1) is processed with the rear knife face (4) that reverse slope forms cutter tooth, the rake face (5) of Surface forming cutter tooth is processed with at the upper surface of cutter hub, the minor flank (6) of Surface forming cutter tooth is processed with in the side of cutter hub, rear knife face (4) and rake face (5) intersect, form main cutting edge (7), rake face (5) and minor flank (6) intersect, form front cutting edge (8), on cutter hub, be also processed with step (9); The rear end of cutter hub is processed with handle of a knife (10), and handle of a knife (10) is coaxial with tapered hole (11), and described handle of a knife (10) is connected with pneumatic tools backward.
Further, rear knife face (4) and cutting speed direction form °-15 °, relief angle α=10, rake face (5) and cutting speed vertical direction form °-15 °, anterior angle γ=10, and minor flank (6) and cutting speed direction form °-10 °, front clearance β=8.
Below by embodiment, the present invention is described in further details.
Embodiment
See Fig. 1 ~ Fig. 7, a kind of two teeth draw spot facing cutter, and it is made up of cutter hub (1) and guide cylinder (2).One end of cutter hub (1) is processed with cutter tooth, for cutting workpiece.The other end of cutter hub is processed with handle of a knife (10), and handle of a knife (10) is for the installation of pneumatic tools.Guide cylinder (2) is arranged in the tapered hole (11) of cutter hub (1).Form two complete teeth and draw spot facing cutter.One end of cutter hub (1) is processed with the length (H) of rectangle groove face (3) for the effective width (B) and cutter tooth that ensure cutter tooth, and be processed with the rear knife face (4) that inclined-plane forms cutter tooth, the rake face (5) of Surface forming cutter tooth is processed with at the upper surface of cutter hub.The minor flank (6) of Surface forming cutter tooth is processed with in the side of cutter hub.Rear knife face (4) and rake face (5) intersect, and form main cutting edge (7), and rake face (5) and minor flank (6) intersect, and form front cutting edge (8).On cutter hub, be also processed with step (9), be the effective thickness forming cutter tooth.Being processed with cylinder at the other end of cutter hub is handle of a knife (10).The rectangle groove face (3) of cutter hub is processed with tapered hole (11) and coaxial with the axle center of handle of a knife (10), the purposes of tapered hole (11) matches with the tapering cylinder (13) above guide cylinder (2).One end of guide cylinder (2) is the cylinder (12) with cup head, and the other end is tapering cylinder (13), and this end matches with tapered hole (11).
Rear knife face (4) and cutting speed direction form °-15 °, relief angle α=10, rake face (5) and cutting speed vertical direction form °-15 °, anterior angle γ=10, and minor flank (6) and cutting speed direction form °-10 °, front clearance β=8.
Operation principle of the present invention is:
Guide cylinder (2) is arranged in the tapered hole (11) of cutter hub (1).Form two complete teeth and draw spot facing cutter.All larger owing to drawing spot facing cutter processing aperture size, in order to ensure the stationarity of cutter when processing parts or product, necessary first locating and machining just hole on part or product, the diameter dimension in first hole, this location should be corresponding with the cup head cylinder (12) drawn in spot facing cutter guide cylinder (2).When using this stroke of tool processes hole, hole, first the cup head cylinder (12) in guide cylinder (2) is stretched in the locating hole of part or product, spot facing cutter location will be drawn by locating hole, ensure that the hole of drawing spot facing cutter processing is concentric in the locating hole of part or product.
Following table provides the parameter of 3 embodiments of the present invention
| Example 1 | Example 2 | Example 3 | |
| A | 50 | 70 | 90 |
| K | 15 | 20 | 25 |
| H | 8 | 9 | 10 |
| B | 8 | 9 | 12 |
| γ | 10° | 12° | 13° |
| β | 10° | 8° | 10° |
| α | 10° | 8° | 10° |
Claims (2)
1. two teeth draw a spot facing cutter, it is characterized in that, comprising:
Cutter hub (1) and guide cylinder (2), guide cylinder (2) front end is cylinder (12) rear end is tapering cylinder (13), cutter hub (1) front end is processed with rectangle groove face (3), tapered hole (11) is opened at rectangle groove face (3) center, and tapering cylinder (13) inserts tapered hole (11) from front and tapering cylinder (13) and tapered hole (11) interference fit;
The every rake face front end, side of cutter hub (1) is processed with the rear knife face (4) that reverse slope forms cutter tooth, the rake face (5) of Surface forming cutter tooth is processed with at the upper surface of cutter hub, the minor flank (6) of Surface forming cutter tooth is processed with in the side of cutter hub, rear knife face (4) and rake face (5) intersect, form main cutting edge (7), rake face (5) and minor flank (6) intersect, form front cutting edge (8), on cutter hub, be also processed with step (9); The rear end of cutter hub is processed with handle of a knife (10), and handle of a knife (10) is coaxial with tapered hole (11), and described handle of a knife (10) is connected with pneumatic tools backward.
2. a kind of two teeth draw spot facing cutter as claimed in claim 1, it is characterized in that, rear knife face (4) and cutting speed direction form °-15 °, relief angle α=10, rake face (5) and cutting speed vertical direction form °-15 °, anterior angle γ=10, and minor flank (6) and cutting speed direction form °-10 °, front clearance β=8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861205.3A CN105397155A (en) | 2015-11-30 | 2015-11-30 | Two-tooth countersinking tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861205.3A CN105397155A (en) | 2015-11-30 | 2015-11-30 | Two-tooth countersinking tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105397155A true CN105397155A (en) | 2016-03-16 |
Family
ID=55463092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510861205.3A Pending CN105397155A (en) | 2015-11-30 | 2015-11-30 | Two-tooth countersinking tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105397155A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1418485A (en) * | 1920-09-20 | 1922-06-06 | Eclipse Interchangeable Counte | Boring tool |
| US2444099A (en) * | 1945-06-26 | 1948-06-29 | Camloc Fastener Corp | Hole-cutting saw |
| DE1752372A1 (en) * | 1968-05-16 | 1971-07-08 | Daimler Benz Ag | Hole cutter, especially for sheet metal |
| US4012970A (en) * | 1976-04-19 | 1977-03-22 | Hintz Doran M | Method of forming a wood boring tool |
| US6354773B1 (en) * | 2000-07-27 | 2002-03-12 | Ideal Industries, Inc. | Wood boring drill bit |
| CN202447725U (en) * | 2012-02-27 | 2012-09-26 | 江西耀升工贸发展有限公司 | Abnormal-shape hard alloy drill bit |
| US8388280B1 (en) * | 2007-10-04 | 2013-03-05 | Orlo Ison | Step drill bit |
| CN203109304U (en) * | 2013-01-05 | 2013-08-07 | 郑州市钻石精密制造有限公司 | Split type hole forming drill |
| DE102013206573A1 (en) * | 2013-04-12 | 2014-10-16 | Hilti Aktiengesellschaft | stepper |
-
2015
- 2015-11-30 CN CN201510861205.3A patent/CN105397155A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1418485A (en) * | 1920-09-20 | 1922-06-06 | Eclipse Interchangeable Counte | Boring tool |
| US2444099A (en) * | 1945-06-26 | 1948-06-29 | Camloc Fastener Corp | Hole-cutting saw |
| DE1752372A1 (en) * | 1968-05-16 | 1971-07-08 | Daimler Benz Ag | Hole cutter, especially for sheet metal |
| US4012970A (en) * | 1976-04-19 | 1977-03-22 | Hintz Doran M | Method of forming a wood boring tool |
| US6354773B1 (en) * | 2000-07-27 | 2002-03-12 | Ideal Industries, Inc. | Wood boring drill bit |
| US8388280B1 (en) * | 2007-10-04 | 2013-03-05 | Orlo Ison | Step drill bit |
| CN202447725U (en) * | 2012-02-27 | 2012-09-26 | 江西耀升工贸发展有限公司 | Abnormal-shape hard alloy drill bit |
| CN203109304U (en) * | 2013-01-05 | 2013-08-07 | 郑州市钻石精密制造有限公司 | Split type hole forming drill |
| DE102013206573A1 (en) * | 2013-04-12 | 2014-10-16 | Hilti Aktiengesellschaft | stepper |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160316 |