CN104191000B - Staggered teeth-structured four-blade hole expanding drill - Google Patents
Staggered teeth-structured four-blade hole expanding drill Download PDFInfo
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- CN104191000B CN104191000B CN201410507174.7A CN201410507174A CN104191000B CN 104191000 B CN104191000 B CN 104191000B CN 201410507174 A CN201410507174 A CN 201410507174A CN 104191000 B CN104191000 B CN 104191000B
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- knife bar
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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
- B23B51/0018—Drills for enlarging a hole
- B23B51/0027—Drills for enlarging a hole by tool swivelling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention provides a staggered teeth-structured four-blade hole expanding drill. The staggered teeth-structured four-blade hole expanding drill is characterized by comprising a cutter arbor, two centrosymmetric first knife edges taking the axle center of the cutter arbor as the central point and two centrosymmetric second knife edge taking the axle center of the cutter arbor as the central point, wherein a front knife face of the first knife edges is perpendicular to the front knife face of the second knife edges; a cutting surface formed by the rotation of a cutting edge on the first knife edges around the central shaft of the cutter arbor is crossed and partially superposed with a cutting surface formed by the rotation of a cutting edge on the second knife edges around the central shaft of the cutter arbor.
Description
Technical field
The present invention relates to the cutting tool field of industrial processes, particularly to a kind of four sword reamers of side set structure.
Background technology
Reamer is a kind of cutter being specifically used to and being processed for the hole of given shape, and it is special to be commonly used for processing
Shape hole and step surface etc., the blade type of molding cutter cutting edge is typically adapted with the appearance profile of workpiece, in order to by once
Processing forms required given shape on workpiece.When needs process two surfaces being connected on workpiece, and this two
When surface connection is seamed edge outwardly, if using traditional method design, the i.e. blade type of the cutting edge of molding cutter
Need to be consistent with workpiece configurations, the cutting edge that thus be accordingly used in this two surfaces of molding intersects and is formed to cutter hub inner-concave in intersection
Sunken sharp concave corners.However, in the manufacturing process of cutter it is more difficult on cutter grinding formed sharp to cutter hub inner recess
Angle, and the sharp comer of cutter hub inner recess cutting resistance in concrete converted productss is excessive, also easily by the seamed edge on product
Cut blunt, do not reach due effect.
Traditional to above-mentioned on workpiece two faces junction be seamed edge outwardly processing method usually first plus
Work goes out first surface, then again clamping workpiece or adjustment tool position, the base material forming first surface processes
Second surface, and so that first surface is intersected with second surface, thus can be formed in the junction of first surface and second surface
Required seamed edge.However, this processing mode whenever process single plane when, all can cause this plane edge clout to
Another side flange produces burr, sawtooth, therefore subsequently also needs to carry out polish of polishing further, the production of impact product is qualified
Rate, and easily cause the accumulation of mismachining tolerance, reduce the precision of processing；In addition said method need to be processed through twice, and needs again
Clamping workpiece or replacing, adjustment tool position, work efficiency is relatively low.
The cutting tool of prior art therefore as above for shortcoming present on curved face processing substantially, has into one very much
Walk improved necessity.
Content of the invention
It is an object of the invention to provide a kind of four sword reamers of side set structure, its technical problem to be solved exists
In: traditional for workpiece on there is the structure that two surfaces are crossed to form seamed edge be processed when, the usual face one by one adopting
Processing, makes the structure that two faces are crossed to form seamed edge easily form clout flange, burr on seamed edge, needs polish, and by
The processing of individual face is also required to adjust clamping or the tool position of workpiece, and therefore efficiency is low, and precision is also subject to the shadow that mismachining tolerance adds up
Ring.
For solve above-mentioned technical problem, the present invention provide a kind of side set structure four sword reamers, it include knife bar, two
Point centered on putting the first blade being centrosymmetric and two axle center by described knife bar centered on the axle center of described knife bar
The second blade being centrosymmetric, the rake face of described first blade is vertical with the rake face of described second blade, and described first
Cutting edge on blade is enclosed around the cutting face of the central shaft rotation formation of described knife bar with the cutting edge on described second blade
The cutting face being formed around the central shaft rotation of described knife bar is intersected and is partially overlapped.
It is preferable over: the cutting edge on described first blade includes some annular end face swords, some circumferential cutting edge and first
End sword, between described annular end face sword and circumferential cutting edge, alternate connection is at right angles step-like, on described first blade one by one
Some annular end face swords are straight line sword and the central axis upright with described knife bar, and some circumference on described first blade are cut
Cut sword and be straight line sword and the centerline axis parallel with described knife bar, described first end sword be located at described first blade on described
The top of the corresponding other end of knife bar, is provided with the first chamfering between described first end sword and adjacent circumferential cutting edge
Sword；
Cutting edge on described second blade includes the conical surface cutting edge, some all swords and second that some cutting faces are the conical surface
End sword, between described conical surface cutting edge and Zhou Ren one by one alternate connect trapezoidal step-like, some on described second blade
Conical surface cutting edge be straight line sword and and the central axis of described knife bar between angle at an acute angle, some on described second blade
Zhou Ren is straight line sword and the centerline axis parallel with described knife bar, described second end sword be located at described second blade on described
It is provided with the second chamfering blades between the top of the corresponding other end of knife bar, and described second end sword and adjacent Zhou Ren；
The cone on step series and the second blade that annular end face sword on described first blade is constituted with circumferential cutting edge
The step series that face cutting edge is constituted with all swords is identical, and the circumferential cutting edge on described first blade is corresponding with the second blade
The diameter in the circumference cutting face around the central shaft rotation formation of described knife bar for the Zhou Ren of series is identical, every on described first blade
The circumferential cutting edge of one-level is covered each by described second blade around the circumference cutting face of the central shaft rotation formation of described knife bar
The Zhou Ren of upper corresponding series is around the circumference cutting face of the central shaft rotation formation of described knife bar, the end sword on described first blade
And first chamfering blades formed cutting face with described second blade end sword and the second chamfering blades formation cutting face overlap, institute
State annular end face sword on the first blade around the phase on the cutting face that formed of central shaft rotation and second blade of described knife bar
The conical surface cutting edge of corresponding series intersects around the cutting face of the central shaft rotation formation of described knife bar.
It is preferable over: the anterior angle of the rake face of described first blade and the second blade is 3 ° -5 °, the ring of described first blade
First relief angle of the conical surface cutting edge of shape end face sword and the second blade be 12 ° -15 °, the second relief angle be 22 °, 25 °, described
The relief angle of the Zhou Ren of the circumferential cutting edge of the first blade and the second blade is 20 ° -25 °, and the circumference of described first blade is cut
Cut and all leave circumference land between the Zhou Ren of sword and the second blade and rear knife face.
It is preferable over: some conical surface cutting edges on described second blade are equal to become 30 ° and the central axis of described knife bar between
Angle.
It is preferable over: described first end sword and the second end sword are straight line sword and the central axis upright with described knife bar, institute
State angle all at 45 ° between the first chamfering blades and the central axis of the second chamfering blades and described knife bar；
It is preferable over: often all offer chip area between adjacent described first blade and the second blade, described chip area
Angle is 85 °, and the bottom land angle of described chip area is rounding corner structure.
It is preferable over: the rake face of described first blade and the second blade is plane, and surface polishing, described first blade
And second blade rake face surface roughness be less than 0.2 micron.
It is preferable over: the circumferential cutting edge of the step first order and afterbody ratio described the respectively is located on described first blade
The step first order and one unit length of all sword length of afterbody are located on two blades；In addition, described second blade
On all swords all corresponding described first blades of circumference of other series on corresponding series circumferential cutting edge axial direction center position,
And then the axial two ends of the circumferential cutting edge on described first blade of corresponding series are all beyond the week on described second blade
One unit length of sword.
It is preferable over: on the step series and the second blade that on described first blade, annular end face sword is constituted with circumferential cutting edge
The step series that conical surface cutting edge is constituted with all swords is identical, is three-level step, wherein, described first blade is located at step the
The circumferential cutting edge of one-level and afterbody is respectively than the Zhou Ren being located at the step first order and afterbody on described second blade
Long 1mm；In addition, corresponding stage on corresponding described first blade of all swords of the other series on described second blade all circumferences
The axial direction of the circumferential cutting edge of number hits exactly the axial direction of the circumferential cutting edge on position, and then described first blade of corresponding series
Two ends are all beyond all sword 1mm on described second blade.
Compared with prior art, the invention has the beneficial effects as follows:
First, intersecting cutting face is formed by the rotation cross structure of the first blade and the second blade, using intersecting two
Individual cutting face two faces of one product of machining simultaneously, and then two faces intersecting composition rib can be formed on the surface of the product
Side structure, need to cut respectively at twice, with tradition, the cumbersome process that two faces Shi Liangge face is intersected using cutter compared with, can
One-shot forming, without multistep operation；
2nd, face one by one can be prevented in traditional handicraft process and cause the position that two faces are intersected to produce flange, burr
Phenomenon, and then eliminate follow-up finishing step, also eliminate the deviation accumulation impact causing because multi-section operation adds up；
3rd, reduce processing cutting resistance, more prevent traditional utilization molding indent wedge angle converted productss on cutter
During seamed edge resistance excessive easily by the phenomenon of product seamed edge blunt.
Brief description
Fig. 1 is cutter the first blade group side structure schematic diagram of the present invention.
Fig. 2 is cutter the second blade group side structure schematic diagram of the present invention.
Fig. 3 is the stage property cutter head end face structure schematic diagram of the present invention.
Fig. 4 is the cross section structure diagram of a-a in Fig. 3.
Fig. 5 is the cross section structure diagram of b-b in Fig. 3.
Fig. 6 is the contour structure schematic diagram in the cutting face of cutter rotation composition of the present invention.
Specific embodiment
Below with reference to the four sword reamings to a kind of side set structure proposed by the present invention of accompanying drawing 1 to 6 and preferred embodiment
Bore and be described in greater detail.
The present invention provides a kind of four sword reamers of side set structure, and it includes 1, two axle center with described knife bar 1 of knife bar
Centered on put the first blade 2 being centrosymmetric and two axle center by described knife bar 1 centered on put being centrosymmetric
Two blades 3, the rake face 21 of described first blade 2 is vertical with the rake face 31 of described second blade 3, on described first blade 2
Cutting edge around the cutting edge on central shaft the rotation cutting face and described second blade 3 that are formed of described knife bar 1 around institute
The cutting face stating the central shaft rotation formation of knife bar 1 is intersected and is partially overlapped.The present invention passes through the first blade 2 and second of side set
Blade 3 forms intersecting cutting face around a central shaft rotation, and then by a knife, intersecting face on product can be entered
Row is processed and formed at one time, and makes on product surface the seamed edge molding that two faces are crossed to form accurately, so that converted productss surface is had good
Good fineness, and the resistance that two faces of time processing are brought is reduced by side set, eliminate the seamed edge that two faces are crossed to form
Burr are routed up at position, reach impulse- free robustness phenomenon；Described first blade 2 and the second blade 3 can make up mutually when processing at the same time
Deficiency on cutting angle, face domain, therefore can complete the polish of whole product using a knife, improve machining accuracy and
Working (machining) efficiency, reduces production cost, extends cutting-tool's used life.
Preferred embodiment: the cutting edge on described first blade 2 includes some annular end face swords 22, some circumferential cutting edge
23 and first end sword 24, at right angles step-like, the institute of alternate connection one by one between described annular end face sword 22 and circumferential cutting edge 23
State some annular end face swords 22 in the first blade 2 and be straight line sword and the central axis upright with described knife bar 1, described first
Some circumferential cutting edge 23 in blade 2 are straight line sword and the centerline axis parallel with described knife bar 1, described first end sword 24
The top of the other end corresponding with described knife bar 1 on described first blade 2, described first end sword 24 with adjacent one
It is provided with the first chamfering blades 25 between circumferential cutting edge 23；
Cutting edge on described second blade 3 includes the conical surface cutting edge 32, some all swords 33 that some cutting faces are the conical surface
And the second end sword 34, between described conical surface cutting edge 32 and all swords 33 one by one alternate connect trapezoidal step-like, described second
Some conical surface cutting edges 32 in blade 3 be straight line sword and and the central axis of described knife bar 1 between angle at an acute angle, described
Some weeks sword 33 in second blade 3 is straight line sword and the centerline axis parallel with described knife bar 1, described second end sword 34
The top of the other end corresponding with described knife bar 1 on described second blade 3, and described second end sword 34 with adjacent one
It is provided with the second chamfering blades 35 between all swords 33；
On the step series and the second blade that on described first blade 2, annular end face sword 22 is constituted with circumferential cutting edge 23
The step series that conical surface cutting edge 32 is constituted with all swords 33 is identical, the circumferential cutting edge 23 on described first blade 2 and the second knife
On sword 3, the diameter in the circumference cutting face around the central shaft rotation formation of described knife bar 1 for all swords 33 of corresponding series is identical, institute
The circumferential cutting edge 23 stating every one-level on the first blade 2 divides around the circumference cutting face of the central shaft rotation formation of described knife bar 1
Do not cover the circumference cutting of all swords 33 of corresponding series on described second blade 3 around the central shaft rotation formation of described knife bar 1
The end sword 34 on cutting face and described second blade 3 that face, the end sword on described first blade 2 and the first chamfering blades 25 are formed and
The cutting face that second chamfering blades 35 are formed overlaps, and the annular end face sword 22 on described first blade 2 is around the center of described knife bar 1
The conical surface cutting edge 32 of cutting face and the corresponding series on the second blade 3 that axle rotation is formed is around the center of described knife bar 1
The cutting face that axle rotation is formed is intersected.
In the specific implementation, on described first blade 2 and the second blade 3, cutting face identical cutting edge can use the present embodiment
In processing same face to be processed, intersecting annular end face sword 22 can be used for the different face of staggered processing from conical surface cutting edge 32,
Make the seamed edge that two faces to be processed are crossed to form bright and clean accurately.
Preferred embodiment: the anterior angle of the rake face (21,31) of described first blade 2 and the second blade 3 is 3 ° -5 °, institute
State the annular end face sword 22 of the first blade 2 and the conical surface cutting edge 32 of the second blade 3 the first relief angle be 12 ° -15 °, second
Relief angle is 22 °, 25 °, the relief angle of the circumferential cutting edge 23 of described first blade 2 and all swords 33 of the second blade 3 be 20 °-
25 °, and all swords 33 of the rear knife face 231 of circumferential cutting edge 23 of described first blade 2 and the second blade 3 and rear knife face 331 it
Between all leave circumference land (232,332).
Preferred embodiment: some conical surface cutting edges 32 on described second blade 3 all with the central axis of described knife bar 1 it
Between become 30 ° of angle, and then for processing the workpiece of special angle shape.
Preferred embodiment: described first end sword 24 and the second end sword 34 are straight line sword and the central shaft with described knife bar 1
Line is vertical, angle all at 45 ° between described first chamfering blades 25 and the second chamfering blades 35 and the central axis of described knife bar 1, this
Embodiment in order to shoot the less hole in aperture embryo, and can be entered in the follow-up bottom to the hole processing in the reaming course of processing
Row edge chamfer；
Preferred embodiment: often all offer chip area 4, described row between adjacent described first blade 2 and the second blade 3
The angle of bits groove 4 is 85 °, and the bottom land angle of described chip area 4 is rounding corner structure.The angle rounding corner structure of bottom land can
Ensure that chip removal is smooth and increased while do not block bits the structural strength of cutter.
Preferred embodiment: the rake face (21,31) of described first blade 2 and the second blade 3 is plane, and surface throwing
Light, the surface roughness of the rake face (21,31) of described first blade 2 and the second blade 3 is less than 0.2 micron, described front knife
Face (21,31) polishing is also beneficial to smooth chip removal.
Preferred embodiment: the step first order and circumferential cutting edge 23 difference of afterbody are located on described first blade 2
Long unit length l than all swords 33 that the step first order and afterbody are located on described second blade 3；In addition institute
State the circumferential cutting edge of corresponding series on corresponding described first blade 2 of the equal circumference of all swords 33 of the other series on the second blade 3
The axial two ends that 23 axial direction hits exactly the circumferential cutting edge 23 on position, and then described first blade 2 of corresponding series are all super
Go out 33 1 unit lengths l of all swords on described second blade 3.
Preferred embodiment: the step series that the annular end face sword 22 on described first blade 2 is constituted with circumferential cutting edge 23
Identical with the step series that all swords 33 are constituted with the conical surface cutting edge 32 on the second blade 3, it is three-level step, wherein, described
Ratio is located at platform on described second blade 3 respectively to be located at the circumferential cutting edge 23 of the step first order and afterbody on first blade 2
The long 1mm of all swords 33 of the rank first order and afterbody；All swords 33 of the other series on described second blade 3 in addition are equal
The axial direction center position of the circumferential cutting edge 23 of corresponding series on corresponding described first blade 2 of circumference, and then corresponding series
The axial two ends of the circumferential cutting edge 23 on described first blade 2 are all beyond 33 1 millimeters of all swords on described second blade 3.
In experimentation: on dmg Digit Control Machine Tool, clamping needs the material of processing, it is 8000 r/ min in rotating speed
(min-1), feed the four sword reamers for a kind of side set structure using the present invention under conditions of 1000mm/min and start to process this
Product, cuts as wet cutting, is cooled to water-cooled, solves the problems, such as jagged at chamfering and small round corner in the course of processing, processing
The each item data of product going out all meets the requirements.
Described in synthesis, technical scheme sufficiently effective can complete foregoing invention purpose, and the present invention
Structural principle and principle of work and power are all sufficiently verified in an embodiment, and can reach expected effect and purpose, and
Embodiments of the invention can also enter line translation according to these principles, and therefore, the present invention includes all in claim
All replacement contents in the range of being previously mentioned.Any equivalence changes made in scope of the present invention patent, all belong to this case
Within the scope of the claims of application.
Claims (9)
1. a kind of side set structure four sword reamers it is characterised in that: include knife bar, centered on two axle center by described knife bar
Put, centered on putting the first blade being centrosymmetric and two axle center by described knife bar, the second blade being centrosymmetric, institute
The rake face stating the first blade is vertical with the rake face of described second blade, and the cutting edge on described first blade is around described knife
The cutting edge on cutting face and described second blade that the central shaft rotation of bar is formed is around the central shaft rotary of described knife bar
The cutting face becoming is intersected and is partially overlapped.
2. as claimed in claim 1 a kind of side set structure four sword reamers it is characterised in that: cutting on described first blade
Cut sword and include some annular end face swords, some circumferential cutting edge and first end sword, described annular end face sword and circumferential cutting edge it
Between one by one alternate connect at right angles step-like, some annular end face swords on described first blade be straight line sword and with described knife
The central axis upright of bar, some circumferential cutting edge on described first blade are straight line sword and the central shaft with described knife bar
Line is parallel, the top of described first end sword other end corresponding with described knife bar on described first blade, and described first
It is provided with the first chamfering blades between end sword and adjacent circumferential cutting edge；
Cutting edge on described second blade includes conical surface cutting edge, some all swords and the second end that some cutting faces are the conical surface
Sword, alternate one by one between described conical surface cutting edge and Zhou Ren connects trapezoidal step-like, some cones on described second blade
Face cutting edge be straight line sword and and the central axis of described knife bar between angle at an acute angle, some weeks on described second blade
Sword is straight line sword and the centerline axis parallel with described knife bar, described second end sword be located at described second blade on described knife
It is provided with the second chamfering blades between the top of the corresponding other end of bar, and described second end sword and adjacent Zhou Ren；
The step series that annular end face sword on described first blade is constituted with circumferential cutting edge and the conical surface on the second blade are cut
It is identical with the step series that all swords are constituted to cut sword, the circumferential cutting edge on described first blade and corresponding series on the second blade
Zhou Ren around described knife bar central shaft rotation formed circumference cutting face diameter identical, every one-level on described first blade
Circumferential cutting edge around described knife bar central shaft rotation formed circumference cutting face be covered each by phase on described second blade
Answer the Zhou Ren of series around the circumference cutting face that formed of central shaft rotation of described knife bar, the end sword on described first blade and the
The cutting face that one chamfering blades are formed is overlapped with the cutting face of the end sword on described second blade and the formation of the second chamfering blades, and described the
Annular end face sword on one blade around described knife bar central shaft rotation formed cutting face with corresponding on the second blade
The conical surface cutting edge of series intersects around the cutting face of the central shaft rotation formation of described knife bar.
3. as claimed in claim 2 a kind of side set structure four sword reamers it is characterised in that: described first blade and second
The anterior angle of the rake face of blade is 3 ° -5 °, the annular end face sword of described first blade and the conical surface cutting edge of the second blade
First relief angle be 12 ° -15 °, the second relief angle be 22 °, 25 °, the circumferential cutting edge of described first blade and the second blade
The relief angle of Zhou Ren is 20 ° -25 °, and between the circumferential cutting edge of described first blade and the Zhou Ren of the second blade and rear knife face
All leave circumference land.
4. as claimed in claim 3 a kind of side set structure four sword reamers it is characterised in that: if on described second blade
The equal angle becoming 30 ° and the central axis of described knife bar between of dry conical surface cutting edge.
5. as claimed in claim 4 a kind of side set structure four sword reamers it is characterised in that: described first end sword and second
End sword is straight line sword and the central axis upright with described knife bar, described first chamfering blades and the second chamfering blades and described knife bar
Central axis between angle all at 45 °.
6. as claimed in claim 5 a kind of side set structure four sword reamers it is characterised in that: often adjacent described first knife
All offer chip area between sword and the second blade, the angle of described chip area is 85 °, and the bottom land angle of described chip area is
Rounding corner structure.
7. as claimed in claim 6 a kind of side set structure four sword reamers it is characterised in that: described first blade and second
The rake face of blade is plane, and surface polishing, and the surface roughness of the rake face of described first blade and the second blade is not
More than 0.2 micron.
8. as claimed in claim 7 a kind of side set structure four sword reamers it is characterised in that: be located on described first blade
Ratio is located at the step first order and afterbody to the circumferential cutting edge of the step first order and afterbody on described second blade respectively
One unit length of all sword length；In addition, all swords of the other series on described second blade all circumferences are corresponding described
On axial direction the center position, and then described first blade of corresponding series of the circumferential cutting edge of corresponding series on first blade
The axial two ends of circumferential cutting edge are all beyond one unit length of all swords on described second blade.
9. as claimed in claim 8 a kind of side set structure four sword reamers it is characterised in that: on described first blade annular
The step series phase that on step series that end face sword is constituted with circumferential cutting edge and the second blade, conical surface cutting edge is constituted with all swords
With, be three-level step, wherein, described first blade is located at the circumferential cutting edge of the step first order and afterbody respectively than
The long 1mm of all swords of the step first order and afterbody is located on described second blade；In addition, on described second blade
The axial direction center position of the circumferential cutting edge of corresponding series on corresponding described first blade of all swords of other series all circumferences, and then
The axial two ends of the circumferential cutting edge on described first blade of corresponding series are all beyond the Zhou Ren on described second blade
1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410507174.7A CN104191000B (en) | 2014-09-28 | 2014-09-28 | Staggered teeth-structured four-blade hole expanding drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410507174.7A CN104191000B (en) | 2014-09-28 | 2014-09-28 | Staggered teeth-structured four-blade hole expanding drill |
Publications (2)
| Publication Number | Publication Date |
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| CN104191000A CN104191000A (en) | 2014-12-10 |
| CN104191000B true CN104191000B (en) | 2017-01-25 |
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| CN201410507174.7A Active CN104191000B (en) | 2014-09-28 | 2014-09-28 | Staggered teeth-structured four-blade hole expanding drill |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424858A (en) * | 2016-12-23 | 2017-02-22 | 广东鼎泰精密刀具技术有限公司 | Staggered tooth forming tool with drill tip |
| CN107116269B (en) * | 2017-06-22 | 2023-08-01 | 广东刀父精工科技有限公司 | Novel staggered tooth step forming cutter |
| CN107695402A (en) * | 2017-11-20 | 2018-02-16 | 中山市园丰精密刃具有限公司 | A kind of outward appearance forming cutter |
| CN107695404B (en) * | 2017-11-20 | 2019-07-19 | 中山市园丰精密刃具有限公司 | A kind of high ray machine forming cutter |
| DE102018114139A1 (en) * | 2018-06-13 | 2019-12-19 | Botek Präzisionsbohrtechnik Gmbh | Deep hole drill and drilling tool with one or more recesses in the rake face |
| CN111945809B (en) * | 2020-08-19 | 2022-02-18 | 山东交通职业学院 | Hole digging device for measuring pavement compactness by sand filling method |
| CN113182563A (en) * | 2021-05-10 | 2021-07-30 | 中航西安飞机工业集团股份有限公司 | Hole expanding cutter for machining thin skin of airplane |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04101708A (en) * | 1990-08-15 | 1992-04-03 | Masao Kubota | Drill |
| SE507842C2 (en) * | 1992-09-24 | 1998-07-20 | Sandvik Ab | Drill |
| JP3176877B2 (en) * | 1997-11-06 | 2001-06-18 | 愛三工業株式会社 | Rotary cutting tool |
| JP2004034202A (en) * | 2002-07-02 | 2004-02-05 | Toshiba Tungaloy Co Ltd | Drill for machining deep hole |
| SE530823C2 (en) * | 2007-01-29 | 2008-09-16 | Sandvik Intellectual Property | Lathe cutter and center cutter for this |
| CN202180241U (en) * | 2011-07-11 | 2012-04-04 | 宁波华刃工具有限公司 | Universal type multi-blade pointed drill |
| CN202411491U (en) * | 2011-12-02 | 2012-09-05 | 朱红梅 | Spade drill blade |
| CN204182988U (en) * | 2014-09-28 | 2015-03-04 | 江西杰浩硬质合金工具有限公司 | A kind of four sword reamers of side set structure |
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2014
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| CN104191000A (en) | 2014-12-10 |
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Denomination of invention: Staggered teeth-structured four-blade hole expanding drill Effective date of registration: 20171226 Granted publication date: 20170125 Pledgee: Agricultural Bank Chinese Jingan County branch of Limited by Share Ltd Pledgor: JIANGXI JIEHAO CARBIDE TOOL CO., LTD. Registration number: 2017360000048 |
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