CN106312140A - Deep-hole drill with guide block - Google Patents
Deep-hole drill with guide block Download PDFInfo
- Publication number
- CN106312140A CN106312140A CN201610431287.2A CN201610431287A CN106312140A CN 106312140 A CN106312140 A CN 106312140A CN 201610431287 A CN201610431287 A CN 201610431287A CN 106312140 A CN106312140 A CN 106312140A
- Authority
- CN
- China
- Prior art keywords
- guide pad
- cutter hub
- liquid bath
- cooling liquid
- guide
- 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.)
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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
- B23B51/0054—Drill guiding devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention relates to a machining tool, and particularly relates to a deep-hole drill with a guide block. The deep-hole drill comprises a tool body and a tool handle connected with the tool body, wherein the tool body is cylindrical and comprises a cylindrical bottom surface and a cylindrical side surface; a blade is installed on the cylindrical bottom surface of the tool body; at least one guide block I and two guide blocks II are fixed on the cylindrical side surface of the tool body; the guide block I is close to one end of the tool handle, and the guide blocks II are close to one end of the blade; and the two guide blocks II are distributed in a staggered manner along the circumferential direction of the cylindrical side surface and have the same height in the axis direction of the tool body. The deep-hole drill disclosed by the invention has the characteristics of being simple in structure, good in use effect, long in service life, high in cutting stability, convenient to cool, and the like.
Description
Technical field
The present invention relates to a kind of machining tool, a kind of depth drill with guide pad.
Background technology
In existing more deep hole machining, the quality problems major part of appearance is that hole wall surface has decorative pattern or claims cutter
Flower, this decorative pattern helically shape, bored when producing the factor predominantly boring of this decorative pattern after certain depth due to
The active force of sliver makes drill bit be slightly slanted, and occurs that outer cutting insert cutting instability produces.
One entitled a kind of depth drill, the Chinese invention patent of Publication No. CN104400080A, including matrix,
The some blades being arranged on base end and the some guide pads being arranged on the outer peripheral face of matrix, matrix is circle
Cylindricality includes installation portion, connecting portion and the cutting portion being sequentially connected with, and offers chip-removal hole along axis on matrix,
Installation portion is provided with the screw-shaped connection tooth that some row are parallel to each other, and protrudes shape between connecting portion and installation portion
Becoming to have retainer ring, the external diameter of retainer ring, more than or equal to the external diameter of connection tooth, offers two in the end of cutting portion
Cutting slot, cutting slot is communicated to chip-removal hole, and guide pad is arranged on the outer peripheral face of cutting portion, at two cutting slots
Between cutting portion outer peripheral face on offer some cooling baths, cooling bath is parallel to the axis of matrix；Described
Inserts from cemented carbide material is made, and described hard alloy contains metal carbide powders and metal adhesive.
This depth drill has a good cooling results, and chip removal is smooth, service life length advantage.But drill bit rigidity is poor,
Especially have cooling bath at cutting portion, affect cutting precision, weaken the rigidity of drill bit.
Another entitled deep hole drill, the Chinese utility model patent of Publication No. CN203679359U, including
Cutter hub, blade, guide pad, circular arc lock-screw and cone locking screw.It is provided with on the excircle of cutter hub
Installing the locating slot of guide pad, the front end of cutter hub is provided with cutter spacing groove, and cutter hub is internally provided with the row's of being exclusively used in ferrum
The hole of bits；Blade is provided with circular hole, and guide pad is provided with bellmouth；Blade is arranged in cutter spacing groove, and leads to
Cross circular arc lock-screw to fasten with cutter hub；Blade is fastened with cutter hub by circular arc lock-screw by threaded engagement；
Cone locking screw is directed to block by threaded engagement and fastens with cutter hub.Blade uses screw-type cutting edge, cutting
" brisk ", the chip of generation is easily drained, and guide pad makes to be not easy during drilling to bore the essence partially improving hole in piece part
Degree.This deep hole drill energy deep hole processing, chip removal is effective, and precision is high, and cutting resistance is little, has higher
Intensity and good heat dispersion.Can only rely on natural cooling in working angles, heat dispersion is more single
One, poor than the cold mode of liquid on heat dispersion.
Summary of the invention
Present invention is generally directed to the structure existing for prior art complicated, using effect is poor, and service life is relatively
The technical problems such as short, cutting stability is poor, cooling inconvenience, it is provided that a kind of simple in construction, using effect is good,
Service life is long, and cutting stability is preferable, and cooling is easily with the depth drill of guide pad.
For achieving the above object, present invention employs following technical scheme:
A kind of depth drill with guide pad, the handle of a knife being connected with described cutter hub including cutter hub, described cutter hub
For cylindric and include bottom cylindrical face and cylindrical side, the bottom cylindrical face of cutter hub is provided with blade, cutter hub
Cylindrical side on be fixed with two guide pads two, guide pad two near blade one end, two described guide pads
Two are in staggered distribution along the circumferencial direction of cylindrical side and highly consistent, further on cutter hub direction of axis line
, described cylindrical side is further fixed at least one guide pad one, and described guide pad one is near handle of a knife one end.
Owing to depth drill is when boring, a piece of blade at the cylindrical of cutter hub, is only had to cut, such drill bit
Stress is asymmetrical, can produce when drilling and rock, and is therefore setting on the cylindrical side of blade one end
Having put two guide pads two to be supported, produce in time balancing blade cut rocks.
After drill bit pierces certain depth, due to factors such as drilling rod rigidity, the cutting force of drill bit own so that deep
Hole drill produces slight inclination, and then causes the linearity of hole and the workpiece got out to produce deviation.In order to solve
This problem, is being provided with at least one guide pad one on the cylindrical side of handle of a knife one end, is being used for balancing
The inclination that when holing deeper, drill bit produces.This guide pad one on the direction of axis line of cutter hub with guide pad two it
Between there is difference in height, the perpendicularity of cutter hub when guide pad one and guide pad two common guarantee drilling deep hole.
As preferably, described cylindrical side is provided with and described guide pad one and the shape of guide pad two and quantity
Mounting groove one to one, and described guide pad one and guide pad two be fixedly installed in correspondence mounting groove in.
As preferably, guide pad two near blade one end to away from the center on direction, place, blade one end
Angle between line and cutter hub axial line is that α, α are in the range of 0 °～30 °.When α is in above-mentioned scope,
The angle that guide pad two supports at circumferencial direction is relatively big, and rigidity of support is also the biggest.
As preferably, guide pad one is one, and guide pad one is not positioned at any one in two guide pads two
On same cutter hub bus, and, the center of guide pad one is relative to the radial direction at cutter hub place and blade
Angle between the straight line of cutting edge place is that β, β are in the range of 30 °～100 °.
Guide pad one increases the drill bit rigidity of support when drilling feeding, is used for preventing drill bit run-off the straight, when
When β is in the range of 30 °～100 °, support effect is preferable, and when wherein β is 90 °, support effect is optimal.
Guide pad one and one of them guide pad two are positioned at mutually corresponding surface, play the effect of support.
As preferably, described guide pad one is N number of, wherein N=2 or 3 or 4；With one of them guide pad
One is not positioned at same as the first guide pad one, this first guide pad one with any one in two guide pads two
On bar cutter hub bus, and, the center of this first guide pad one is relative to the radial direction at cutter hub place and cutter
Angle between the straight line of sheet cutting edge place is that β, β are in the range of 30 °～100 °；N number of guide pad one is certainly
First guide pad is sequentially distributed along the circumferencial direction of cylindrical side and at the beginning clockwise at cutter hub direction of axis line
On highly consistent, the central angle between adjacent two guide pads one is 90 °.
As N=2,2 pieces of guide pad one positions are corresponding with the position of 2 pieces of guide pads two, with guide pad two
Common effect ensures perpendicularity during cutter hub cutting.As N=3, close when effect and N=2.Work as N=4
Time, due to the uniform circumferencial direction being distributed in cutter hub of guide pad one, the inclination that cutter hub produces in any direction is all
Can be corrected, the best results now support, guided.
Present invention also offers a kind of self cooled depth drill, including the above-mentioned depth drill with guide pad, with
And the outer surface of described guide pad two is provided with cooling liquid bath, the outer surface of described guide pad two is provided with cooling
Liquid bath, and the top of described cooling liquid bath and bottom communicate with the external world respectively；Or described guide pad two and leading
On the outer surface of block one, be equipped with cooling liquid bath, and the top of described cooling liquid bath and bottom respectively with the external world
Communicate.
Drill bit when boring, guide pad one and guide pad two because with the wall of a borehole contact friction, particularly lead
Contact friction with the wall of a borehole to block two the most, cause contact friction spot temperature high and local blackout, make
Obtain supporting gap and become big, cause cutter hub to rock.By arranging cooling liquid bath on guide pad two and guide pad one,
And the top and the bottom that cool down liquid bath communicate with the external world respectively, coolant obtains space and flows to cutter at handle of a knife
Body, makes drill bit be preferably minimized at the heat adding on guide pad in man-hour, it is to avoid the appearance of guide pad thermal expansion, no
Only ensure that the perpendicularity of drilling metapore, during for improving drilling, hole wall quality also functions to the biggest effect, energy
Enough adapt to the deep hole machining industry in various field.
As preferably, described cooling liquid bath is shaped form groove.Shaped form groove makes coolant at cooling liquid bath
Middle stop the longer time, and add the contact area of coolant and hole wall, so lifting cooling effect and
Machining accuracy.
As preferably, described cooling liquid bath is linear type groove, the most close blade one of described linear type groove
End is to away from the model that angle is γ, γ between the centrage on direction, place, blade one end and cutter hub axial line
Enclose is 1 °～30 °.Linear type groove slant is arranged, equally increases coolant in cooling liquid bath
The contact area of the time of staying and coolant and hole wall, and then promote cooling effect and machining accuracy.
To sum up, the present invention has simple in construction, and using effect is good, and service life is long, and cutting stability is preferable,
The features such as cooling is convenient.
Accompanying drawing explanation
Fig. 1 is the first embodiment overall structure schematic diagram of the present invention；
Fig. 2 is the second embodiment overall structure schematic diagram of the present invention；
Fig. 3 is the plan structure schematic diagram of Fig. 1；
Fig. 4 is the third embodiment overall structure schematic diagram of the present invention.
Description of reference numerals: 1-cutter hub, 2-handle of a knife, 3-blade, 4-guide pad one, 5-guide pad two, 6-is cold
But liquid bath, 11-bottom cylindrical face, 12-cylindrical side, α-guide pad two Zi near blade one end to away from cutter
The angle between centrage and cutter hub axial line on direction, place, sheet one end, the center of β-guide pad one is relative
The angle between radial direction and blade cutting edge place straight line in cutter hub place, γ-cooling liquid bath from close
Blade one end is to away from the angle between the centrage on direction, place, blade one end and cutter hub axial line.
Detailed description of the invention
In order to be further appreciated by the present invention, below in conjunction with embodiment, the preferred embodiment of the invention is described,
It is understood that these describe simply for further illustrating the features and advantages of the present invention rather than to this
The restriction of invention claim.
Present embodiments provide a kind of depth drill with guide pad, as shown in Figure 1, including cutter hub 1 He
The handle of a knife 2 that cutter hub 1 is connected, cutter hub 1 is cylindric and includes bottom cylindrical face 11 and cylindrical side 12,
Blade 3 is installed on the bottom cylindrical face 11 of cutter hub 1, the cylindrical side 12 of cutter hub 1 is fixed with a guiding
Block 1 and two guide pads 25, guide pad 1 is arranged on cylindrical side 12 and near cutter hub 1 and cutter
The connecting portion of handle 3, guide pad 25 arranges the position of neighbouring blade 3, and two guide pads 25 are along cylinder
The circumferencial direction of side 12 is in staggered distribution, and the height that two guide pads 25 are on cutter hub 1 direction of axis line
Spend identical.
For more preferable fixed guide block, cutter hub cylindrical side 12 is additionally provided with three mounting grooves, described installation
The shape of groove matches with guide pad 1 and guide pad 25 respectively, and a mounting groove is used for installing guide pad
One 4, another two mounting groove is respectively used to install guide pad 25.The guide pad 1 of the present embodiment, guide pad
25 is the shape of cuboid or similar cuboid.Guide pad 1 and guide pad 25 can use welding or spiral shell
The mode connect is fixedly mounted in mounting groove, and the depth drill build of the present embodiment is less, it is preferred to use welding is solid
Fixed.
As shown in Figure 2, for making guide pad 25 the best at circumferencial direction support effect, the present embodiment is led
To block 25 near blade 3 one end to away from the centrage on direction, place, blade 3 one end and cutter hub 1
Being provided with angle α between axial line, α ranges preferably from 1 °～30 °, as α is set to 15 °.When
α is when above-mentioned scope, and the angle that guide pad 25 supports at circumferencial direction is relatively big, and rigidity of support is also the most relatively
Greatly.
Described guide pad one and the guide pad two distributing position on cylindrical side need to meet following condition: bore
The perpendicularity of cutter hub is ensured during hole.The quantity of the present embodiment guide pad 1 can be with more than one, preferably 1-4
Individual.
When the quantity of guide pad 1 is one, as shown in Figure 3, guide pad 1 and two guide pads
It is positioned in 25 on different cutter hub buses.For increasing the drill bit rigidity of support when drilling feeding further,
The center of the present embodiment guide pad 1 is relative to radial direction and the blade 3 cutting edge place straight line at cutter hub place
Between be provided with angle β, β ranges preferably from 30 °～100 °, as β angle is set to 80 °.
When the quantity of guide pad 1 is two, on the basis of the position of first guide pad 1, around cutter
The axial line up time of body 1 rotates 90 ° and adds second guide pad 1, two guide pads 1 at cutter hub 1
Height on direction of axis line is identical.Now two guide pads 1 and two guide pads 25 act on guarantor jointly
Perpendicularity during card cutter hub cutting.
When the quantity of guide pad 1 is three, on the basis of the position of first guide pad 1, around cutter
The axial line up time of body 1 rotates 90 °, 180 ° and adds second, the 3rd guide pad 1, three guiding
The height on cutter hub 1 direction of axis line of block 1 is identical.Effect now and upper two guide pads 1
Time effect close.
When the quantity of guide pad 1 is four, on the basis of the position of first guide pad 1, around cutter
The axial line up time of body 1 rotates 90 °, 180 °, 270 ° and adds second, the 3rd, the 4th guiding
Block 1, the height on cutter hub 1 direction of axis line of four guide pads 1 is identical.Now, four guiding
Block 1 is distributed on the circumference of cutter hub 1, and the inclination that cutter hub 1 produces in any direction can be corrected,
The best results now support, guided.Meanwhile, also the cutting feed direction of cutter hub can be given the axle of auxiliary
To location, reduce cutter hub 1 in cutting feed and shake the mismachining tolerance brought, increase machining accuracy.
During work, cutter hub, before boring, provided circumferentially about plays positioning action when having guide pin bushing to cutter hub 1 drilling,
Ensure that cutter hub 1 processes the linearity in hole and workpiece, owing to cutter hub 1 is adding man-hour, 3, the blade at cylindrical
Having a piece of, the blade 3 on cutter hub 1 does not has symmetry, uses two guide pads 25 to be supported, makes brill
Head steadily drilling feeding；And after cutter hub 1 pierces certain depth, owing to cutter hub 1 by the rigidity of itself and is cut
Cut the factor impact of power etc., make processing hole produce deviation with the linearity of workpiece；After increasing guide pad 1,
Cutter hub 1 is limited, prevents, to improve the linearity in processing hole.
Invention further provides a kind of depth drill embodiment with guide pad, as shown in Figure 4, this enforcement
The outer surface of the guide pad 25 of example depth drill is provided with cooling liquid bath 6.When working due to cutter hub 1, guide pad
1 and guide pad 25 and the wall of a borehole contact friction, particularly more with the friction of guide pad 25, hold
It is easily caused contact friction spot temperature height and local blackout so that supporting gap becomes big, causes cutter hub to rock.
Therefore, the present embodiment uses the outer surface at guide pad 1 and guide pad 25 to arrange cooling liquid bath, so that
Obtain guide pad can faster cool down.
Described cooling liquid bath 6 can be curvilinear shaped recesses, it is also possible to be linear type groove.Cooling liquid bath 6 is
During linear type groove, linear type groove near blade one end to away from direction, place, blade one end
Angle between heart line and cutter hub axial line be γ, γ in the range of 1 °～30 °, e.g., γ is set to
15°.By being set to cooling liquid bath 6 tilt, can avoid cooling down the subvertical trend of liquid bath 6, anti-
Only cutting oil is too fast in the Surface runoff of groove 6, affects radiating effect.
The cross section of described cooling liquid bath 6 can be circular arc or V-type.When using cutting oil, cooling profit
Lubricating oil is difficult to stick on cooling liquid bath 6, had both ensured machining accuracy, and can automatically cool down again cutter hub 1.
In order to make coolant enter groove smoothly, and make guide pad top, i.e. contact with the wall of a borehole most
The cooling effect that position has reached, preferably cooling liquid bath 6 two ends are through, and top and bottom are respectively with outward
Boundary communicates.Coolant flows into cooling liquid bath 6 from handle of a knife periphery, then flows into chip-removal hole, is discharged together with iron filings
Outside processing hole, guide pad caloric value is made quickly to reduce, it is to avoid thermal expansion occurs in guide pad, it is ensured that processing essence
Degree, improves the perpendicularity in processing hole, it is possible to adapt to the deep hole machining industry in various field.
The present invention also provides for another kind of embodiment, and will cool down liquid bath 6 can be replaced by the pit of surface imperfection,
Annular knurl etc. is processed as being directed to the outer surface of block 1 or guide pad 25, or at guide pad 1 or lead
To the outer surface hollow out processing etc. of block 25.Can be interconnected between described pit, it is possible to mutually block.Institute
State pit and be similar to the most tiny pore.The cooling liquid bath using bowl configurations to arrange, equally increases cold
But liquid is in guide pad 1 and the holdup time on guide pad 25 surface, fully absorbs the produced heat of processing,
Meanwhile, the fancy processing of guide pad 1 or guide pad 25 outer surface adds area of dissipation, promotes heat radiation
Effect.
The explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.Should refer to
Go out, for those skilled in the art, under the premise without departing from the principles of the invention, also
The present invention can be carried out some improvement and modification, these improve and modify and also fall into the claims in the present invention
In protection domain.
Claims (10)
1. with a depth drill for guide pad, the cutter being connected with described cutter hub (1) including cutter hub (1)
Handle (2), it is characterised in that: described cutter hub (1) is cylindric and includes bottom cylindrical face (11) and cylindrical side
Face (12), is provided with blade (3), the cylinder of cutter hub (1) on the bottom cylindrical face (11) of cutter hub (1)
Be fixed with two guide pads two (5) on side (12), described guide pad two (5) near blade one end, and
Said two guide pad two (5) is in staggered distribution and on cutter hub direction of axis line along the circumferencial direction of cylindrical side
Highly consistent, further, described cylindrical side (12) is further fixed at least one guide pad one (4),
Described guide pad one (4) is near handle of a knife (2) one end.
Depth drill with guide pad the most according to claim 1, it is characterised in that: described cylindrical side
Face (12) is provided with mates one by one with described guide pad one (4) and the shape of guide pad two (5) and quantity
Mounting groove, described guide pad one (4) and guide pad two (5) be fixedly installed in correspondence mounting groove in.
Depth drill with guide pad the most according to claim 1 and 2, it is characterised in that: guide pad
Two (5) near blade one end to away from the centrage on direction, place, blade one end and cutter hub axial line it
Between angle be that α, α are in the range of 0 °～30 °.
Depth drill with guide pad the most according to claim 1 and 2, it is characterised in that: guide pad
One (4) is one, and guide pad one (4) is not positioned at same with any one in two guide pads two (5)
On cutter hub bus, and, the center of guide pad one (4) is relative to radial direction and the blade (3) at cutter hub place
Angle between the straight line of cutting edge place is that β, β are in the range of 30 °～100 °.
Depth drill with guide pad the most according to claim 1 and 2, it is characterised in that lead described in:
It is N number of to block one (4), wherein N=2 or 3 or 4；Using one of them guide pad one (4) as first
Guide pad one, this first guide pad one (4) is not positioned at same with any one in two guide pads two (5)
On bar cutter hub bus, and, the center of this first guide pad one is relative to the radial direction at cutter hub place and cutter
Angle between the straight line of sheet (3) cutting edge place is that β, β are in the range of 30 °～100 °；N number of guide pad
One (4) is sequentially distributed along the circumferencial direction of cylindrical side and at cutter hub axle at the beginning clockwise from the first guide pad
Highly consistent on heart line direction, the central angle between adjacent two guide pads one (4) is 90 °.
6. a self cooled depth drill, it is characterised in that: include the band described in any one of claim 1-6
The depth drill of guide pad, the outer surface of described guide pad two (5) is had to be provided with cooling liquid bath (6), and described
Top and the bottom of cooling liquid bath communicate with the external world respectively；Or described guide pad two (5) and guide pad one (4)
Outer surface on be equipped with cooling liquid bath (6), and the top of described cooling liquid bath and bottom respectively with extraneous phase
Logical.
Self cooled depth drill the most according to claim 6, it is characterised in that: described cooling liquid bath is
Shaped form groove.
Self cooled depth drill the most according to claim 6, it is characterised in that: described cooling liquid bath is
Linear type groove, described linear type groove near blade one end to away from direction, place, blade one end
Angle between centrage and cutter hub axial line is that γ, γ are in the range of 1 °～30 °.
9. according to the self cooled depth drill described in claim 6 or 7 or 8, it is characterised in that: described
The cross sectional shape of cooling liquid bath (6) is V-type or circular arc.
10. a self cooled depth drill, it is characterised in that: include the band described in any one of claim 1-6
The depth drill of guide pad, the outer surface of described guide pad two (5) is had to be provided with cooling liquid bath (6) or institute
Stating and be equipped with cooling liquid bath (6) on the outer surface of guide pad two (5) and guide pad one (4), described is cold
But liquid bath (6) is some irregular pits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610431287.2A CN106312140A (en) | 2016-06-16 | 2016-06-16 | Deep-hole drill with guide block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610431287.2A CN106312140A (en) | 2016-06-16 | 2016-06-16 | Deep-hole drill with guide block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106312140A true CN106312140A (en) | 2017-01-11 |
Family
ID=57726314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610431287.2A Pending CN106312140A (en) | 2016-06-16 | 2016-06-16 | Deep-hole drill with guide block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106312140A (en) |
Cited By (1)
| 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 |
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| CN201168805Y (en) * | 2008-03-19 | 2008-12-24 | 西安理工大学 | Soft metal ultralong deep hole processing tool bit |
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| CN102528129A (en) * | 2010-11-29 | 2012-07-04 | 钴碳化钨硬质合金公司 | Rotating cutting tool and guide insert therefor |
| US20130051944A1 (en) * | 2010-03-05 | 2013-02-28 | Botek Praezisionsbohrtechnik Gmbh | Guide pad |
| CN205702581U (en) * | 2016-06-16 | 2016-11-23 | 浙江欣兴工具有限公司 | Depth drill with cooling bath |
| CN206276949U (en) * | 2016-06-16 | 2017-06-27 | 浙江欣兴工具有限公司 | Depth drill with guide pad |
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2016
- 2016-06-16 CN CN201610431287.2A patent/CN106312140A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19728157A1 (en) * | 1997-07-03 | 1999-01-07 | Beck August Gmbh Co | Rotating shanked tool |
| CN1356932A (en) * | 1999-06-21 | 2002-07-03 | 桑德维克公司 | Support pad |
| CN101652212A (en) * | 2007-04-02 | 2010-02-17 | 犹尼达克株式会社 | Deep hole cutting apparatus |
| CN201168805Y (en) * | 2008-03-19 | 2008-12-24 | 西安理工大学 | Soft metal ultralong deep hole processing tool bit |
| US20130051944A1 (en) * | 2010-03-05 | 2013-02-28 | Botek Praezisionsbohrtechnik Gmbh | Guide pad |
| CN102528129A (en) * | 2010-11-29 | 2012-07-04 | 钴碳化钨硬质合金公司 | Rotating cutting tool and guide insert therefor |
| CN102430781A (en) * | 2011-10-27 | 2012-05-02 | 成都工具研究所有限公司 | Inner chip removal deep hole drilling tool for hard alloys |
| CN205702581U (en) * | 2016-06-16 | 2016-11-23 | 浙江欣兴工具有限公司 | Depth drill with cooling bath |
| CN206276949U (en) * | 2016-06-16 | 2017-06-27 | 浙江欣兴工具有限公司 | Depth drill with guide pad |
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| 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 |
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Application publication date: 20170111 |
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