CN208743768U - Novel deep hole drill head - Google Patents
Novel deep hole drill head Download PDFInfo
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- CN208743768U CN208743768U CN201821434735.5U CN201821434735U CN208743768U CN 208743768 U CN208743768 U CN 208743768U CN 201821434735 U CN201821434735 U CN 201821434735U CN 208743768 U CN208743768 U CN 208743768U
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- guide pin
- cutter hub
- cutting knife
- deep hole
- knife
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Abstract
The utility model discloses a kind of Novel deep hole drill heads, it includes a cutter hub, cutter hub is made of the connecting pin of bottom and the cutting end at top, the top of cutting end is taper design, there are two material returned slots for its top setting, at the top center of cutter hub, diagonally it is arranged along two material returned groove sidewalls there are two central cutting knife, an edge bite is provided in same material returned groove sidewall with the central cutting knife of front side, central cutting knife is identical with edge bite structure, and top is provided with a pusher protrusion；Central cutting knife close to front side, is provided with first guide pin on the outer diameter of cutting end, and clockwise, the angle between the first guide pin and the second guide pin is 25~30 degree, and third guide pin and the first guide pin are arranged at 180 degree angle.The utility model effectively avoids the generation that cutter hub trembles at work, avoids the generation of revolution mark, improves the internal diameter smoothness for being cut object.
Description
Technical field
The utility model relates to deep hole processing cutter technical fields, more particularly to one kind can improve deep hole machining precision
Novel deep hole drill head.
Background technique
Known, deep hole drill is mainly used for the deep hole machining of workpiece.Such deep hole drill must rigidity with higher
And stability will keep good stability when processing to deeper inner hole.
Currently, in deep hole drill technical field, by the technological innovation of many years, structure that common deep hole drill mostly uses
Be: cutter hub is interior chip removal two-edged structure, and such structure is that there are two conducting bar and two cutting edges, conducting bars for fixed setting on cutter hub
And the outer rim of cutting edge is on same cylindrical surface, by the guiding of conducting bar, is limited cutting edge cutter hub in rotation and is generated self-excitation
Vibration.
So-called self-excited vibration is a kind of week under the effect of no external periodic force, exciting feedback to generate by internal system
The vibration of phase property, commonly referred to as cutting is trembled in metal cutting process for such vibration, and trembling to directly result in is cut object surface
The shape of threads microscratch of generation rule can reduce such problem of trembling using the deep hole drill of double conducting bars at present to a certain extent
It generates, but as depicted in figs. 1 and 2, still the lesser microscratch of screw pitch can be generated being cut inside object.
Can further to reduce such generation trembled, there is part of the manufacturer three can be arranged on deep hole drill at present and lead
Item, as shown in figure 3, these three conducting bars are to be spaced apart from each other an angle of 90 degrees setting, such deep hole drill can be by the screw pitch of shape of threads microscratch
Increase, surface roughness is practical to be improved less, as shown in Figure 4.
How to be improved by technology, designed a novel as industry technical staff for the drawback in the prior art
Deep hole drill, the generation that cutter hub trembles can be reduced, reduction is cut object surface tool marks, and it is existing for improving its surface roughness
The technical problem for having industry technical staff urgently to be resolved.
Summary of the invention
To achieve the goals above, the technical scheme adopted is as follows for the utility model: a kind of Novel deep hole drill head, packet
A cutter hub is included, cutter hub is made of the connecting pin of bottom and the cutting end at top, the company of being provided on the connecting pin of the bottom
Screw thread is connect, connection screw thread is external screw thread or internal screw thread；The top of cutting end is taper design, and there are two the materials returned for top setting
Slot, material returned slot run through cutter hub from top to bottom, and two material returned slots are diagonally arranged, at the top center of cutter hub, along two
A material returned groove sidewall is diagonally arranged there are two central cutting knife, is arranged in same material returned groove sidewall with the central cutting knife of front side
There is an edge bite, the central cutting knife is identical with edge bite structure, and top is provided with one and pushes away
Material protrusion；Central cutting knife close to front side, is provided with first guide pin on the outer diameter of cutting end, clockwise, leans on
Nearly first guide pin is provided with second guide pin, and the angle between first guide pin and the second guide pin is A, institute
The included angle A stated is 25~30 degree；On the outer diameter of cutting end, corresponding first guide pin is provided with third guide pin, the third
Guide pin and the first guide pin are arranged at 180 degree angle.
First guide pin and the second guide pin is identical with third guiding plate shape, is all provided on lateral surface
One layer of wearing layer, the wearing layer use titanium nitride material wear-resistant coating；The guide pin be it is abnormally-structured, among it and
Bottom width is greater than top width.
The structure of the central cutting knife and edge bite is identical, is all provided with pusher protrusion, institute at top
The height B for the pusher protrusion stated is 2~3 millimeters；The point of a knife of pusher raised brim distance center bite and edge bite
The distance C at place is 3 millimeters.
The maximum outside diameter of all guide pins is and edge bite point of a knife is on same outside diameter.
It is designed above the beneficial effects of the utility model are: the utility model passes through, by the way that two are arranged on cutting end
A central cutting knife and an edge bite are used cooperatively, and pusher protrusion is arranged at all points of a knife, can will be cut
Cutting swarf directly pushed in material returned slot by pusher protrusion, effectively reduce cutting resistance, raising chip removal performance, then lead to
Three special-shaped guide pins of setting on the top outer diameter of cutting end are crossed, and the second guide pin is led with first in the clockwise direction
It must not exceed 30 degree to the interval angles between piece, effectively avoid the generation that cutter hub trembles at work, avoid cutting
The generation of trace improves the internal diameter smoothness for being cut object；The guide pin of abnormally-structured design can effectively prevent guide pin
To ensure guide pin the operation is stable, while wear-resistant coating is arranged in the external of guide pin, further in displacement vertically
The wear-resisting stability of guide pin is improved, to sum up, the utility model improves structure on the basis of existing product, no
Only reinforced on service life, the precision of work piece is also made to be greatly improved, is a kind of ideal novel
Deep hole drill.
Detailed description of the invention
Fig. 1 is the cutter hub schematic diagram of the double conducting bars of existing product；
Fig. 2 is the workpiece surface schematic diagram that double conducting bar structure cutter hubs are cut；
Fig. 3 is the cutter hub schematic diagram of three conducting bar of existing product；
Fig. 4 is the workpiece surface schematic diagram that three conducting bar structure cutter hubs are cut；
Fig. 5 is the utility model antero-lateral perspective structural representation；
Fig. 6 is the utility model rear perspective structural representation；
Fig. 7 be in Fig. 6 A to structure enlargement diagram；
Fig. 8 is that the utility model lays flat rear schematic view of the front view；
Fig. 9 is the utility model overlooking structure diagram；
Figure 10 is overlooking structure diagram under utility model works state；
Figure 11 is to be cut object schematic surface using after the utility model bore hole；
Appended drawing reference: 1, cutter hub, 2, cutting edge, 3, conducting bar, 4, connecting pin, 5, cutting end, 6, material returned slot, 7, third guiding
Piece, 8, central cutting knife, the 9, second guide pin, the 10, first guide pin, 11, edge bite, 12, pusher protrusion, 13, wear-resisting
Layer, 14, connection screw thread, 15, cutting swarf, 16, be cut object.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.It should be appreciated that the specific embodiments described herein are only used to explain that this is practical
It is novel, it is not used to limit the utility model.
A kind of Novel deep hole drill head, as shown in Figure 5 and Figure 6 comprising a cutter hub 1, cutter hub 1 by bottom connecting pin 4
Formed with the cutting end 5 at top, be provided with connection screw thread 14 on the connecting pin 4 of the bottom, connection screw thread be external screw thread or
Person's internal screw thread, depending on external screw thread or internal screw thread are interior connection with the design form of connecting pin or connect outside herein；Cutting end 5
Top be taper design, top setting is there are two material returned slot 6, and material returned slot 6 runs through cutter hub from top to bottom, and described two are moved back
Hopper 6 is diagonally arranged, and is taper design at the top of the cutter hub 1, is below cylindric via design, cutting swarf is through material returned slot
It can be exited along the circular hole through-hole at 1 inside center of cutter hub after 6 export.
At the top center of cutter hub 1, diagonally it is arranged along two material returned groove sidewalls there are two central cutting knife 8, and it is preceding
The central cutting knife 8 of side is provided with an edge bite 11, the central cutting knife 8 and side in same material returned groove sidewall
11 structure of edge bite is identical, and top is provided with a pusher protrusion 12；Central cutting knife 8 close to front side, is cutting
It cuts and is provided with first guide pin 10 on 5 outer diameters of end, clockwise, the first guide pin 10 is provided with one second and leads
To piece 9, the angle between first guide pin 10 and the second guide pin 9 is A, and the included angle A is 25~30 degree, is owned
Guide pin maximum outside diameter and 11 point of a knife of edge bite on same outside diameter；During bore hole, the shake of cutter
Quivering is the presence of delay, and after edge bite 11 is with the cutting of 16 inner wall of object is cut, cutting resistance is acted on cutter hub 1, knife
Body 1 can be obtained by itself reaction force acts on being cut 16 inner wall of object by the applicant's many experiments after stress,
The reaction force and cutting resistance of cutter hub 1 are different, and cutter hub 1 will appear a small range and tremble, the effect of the first guide pin 10
It is that cutter hub 1 is prevented to tremble, by the effect of the first guide pin 10, trembling for cutter hub 1 has certain reduction, still, prolongs
When tremble and a little appear in 25~30 degree of angular ranges of the first guide pin of distance, pass through the blocking again of the second guide pin 9, meeting
To directly tremble an elimination, but with the lasting cutting of cutter hub 1, second delay of trembling appears in third guide pin
At 7, by the effect of third guide pin 7, it can effectively inhibit the appearance trembled, cutter hub 1 goes to first by third guide pin 7 and leads
To after piece 10, second circulation continues, and by designing above, repeatedly tests through applicant, is cut surface such as Figure 11 of object 16
It is shown.
Further, in order to improve the wearability of the utility model, first guide pin 10 and the second guide pin 9
It is identical with 7 shape of third guide pin, one layer of wearing layer 13 is all provided on lateral surface, the wearing layer 13 uses titanium nitride
Material wear-resistant coating；Three guide pins be all it is abnormally-structured, among it and bottom width be greater than top width, Ci Zhongshe
Counting purpose is effectively to prevent the displacement of guide pin vertically, to ensure guide pin the operation is stable.
Further, the structure of the central cutting knife 8 and edge bite 11 is identical, is all arranged at top
There is pusher protrusion 12, as shown in figure 9, the height B of the pusher protrusion 12 is 2~3 millimeters；In pusher 12 Edge Distances of protrusion
Distance C at the point of a knife of anxious sharpener 8 and edge bite 11 is 3 millimeters, as shown in Figure 10, is cut when cutter hub acts on
When on object 16, cutting swarf 15 is fractureed and is pushed in material returned slot 6 and is discharged by pusher protrusion 12.
To sum up, the utility model improves structure on the basis of existing product, not only on service life
Reinforcement has been arrived, the precision of work piece is also made to be greatly improved, has been a kind of ideal Novel deep hole drill head.
Claims (4)
1. a kind of Novel deep hole drill head comprising a cutter hub, cutter hub are made of the connecting pin of bottom and the cutting end at top, institute
Connection screw thread is provided on the connecting pin for the bottom stated, it is characterised in that: connection screw thread is external screw thread or internal screw thread；Cutting end
Top be taper design, there are two material returned slot, material returned slot runs through cutter hub, two materials returned from top to bottom for top setting
Slot is diagonally arranged, and at the top center of cutter hub, is diagonally arranged along two material returned groove sidewalls there are two central cutting knife, and preceding
The central cutting knife of side is provided with an edge bite in same material returned groove sidewall, and the central cutting knife and edge are cut
Sharpener structure is identical, and top is provided with a pusher protrusion；Central cutting knife close to front side, on the outer diameter of cutting end
It is provided with first guide pin, clockwise, the first guide pin is provided with second guide pin, described first
Angle between guide pin and the second guide pin is A, and the included angle A is 25~30 degree；On the outer diameter of cutting end, corresponding first
Guide pin is provided with third guide pin, the third guide pin and the first guide pin and is arranged at 180 degree angle.
2. Novel deep hole drill head according to claim 1, it is characterised in that: first guide pin and the second guiding
Piece is identical with third guiding plate shape, one layer of wearing layer is all provided on lateral surface, the wearing layer is using nitridation titanium
Matter wear-resistant coating；The guide pin be it is abnormally-structured, among it and bottom width be greater than top width.
3. Novel deep hole drill head according to claim 1, it is characterised in that: the central cutting knife and edge cutting
The structure of knife is identical, is all provided with pusher protrusion at top, the height B of the pusher protrusion is 2~3 millimeters；Pusher is convex
Playing the distance C at the point of a knife of Edge Distance central cutting knife and edge bite is 3 millimeters.
4. Novel deep hole drill head according to claim 1, it is characterised in that: the maximum outside diameters of all guide pins is and edge
Bite point of a knife is on same outside diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821434735.5U CN208743768U (en) | 2018-09-03 | 2018-09-03 | Novel deep hole drill head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821434735.5U CN208743768U (en) | 2018-09-03 | 2018-09-03 | Novel deep hole drill head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208743768U true CN208743768U (en) | 2019-04-16 |
Family
ID=66082903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821434735.5U Active CN208743768U (en) | 2018-09-03 | 2018-09-03 | Novel deep hole drill head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208743768U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605426A (en) * | 2019-09-23 | 2019-12-24 | 浙江甬岭数控刀具有限公司 | High-precision U drill |
| CN111390755A (en) * | 2020-03-25 | 2020-07-10 | 宣城军焊焊接科技有限公司 | High-precision grinding drill bit |
-
2018
- 2018-09-03 CN CN201821434735.5U patent/CN208743768U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605426A (en) * | 2019-09-23 | 2019-12-24 | 浙江甬岭数控刀具有限公司 | High-precision U drill |
| CN111390755A (en) * | 2020-03-25 | 2020-07-10 | 宣城军焊焊接科技有限公司 | High-precision grinding drill bit |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 253000 No. 1, haowangzhuang Industrial Park, Wucheng County, De Zhou City, Shandong Province Patentee after: Shandong JingZhan Precision Machinery Co.,Ltd. Address before: 253000 east of Chuangye Road, Qizhong village, Xinhua sub district office, Decheng District, De Zhou City, Shandong Province Patentee before: DEZHOU JINGZUAN MACHINERY Co.,Ltd. |