CN104859057B - Boring bar tool - Google Patents
Boring bar tool Download PDFInfo
- Publication number
- CN104859057B CN104859057B CN201510087146.9A CN201510087146A CN104859057B CN 104859057 B CN104859057 B CN 104859057B CN 201510087146 A CN201510087146 A CN 201510087146A CN 104859057 B CN104859057 B CN 104859057B
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- CN
- China
- Prior art keywords
- boring bar
- bar tool
- joint face
- drilling head
- cutting part
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- 238000005553 drilling Methods 0.000 claims abstract description 124
- 238000005520 cutting process Methods 0.000 claims abstract description 102
- 239000011435 rock Substances 0.000 claims abstract description 6
- 230000032258 transport Effects 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011195 cermet Substances 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000000109 continuous material Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
- B28D1/146—Tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2226/00—Materials of tools or workpieces not comprising a metal
- B23B2226/75—Stone, rock or concrete
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/40—Flutes, i.e. chip conveying grooves
- B23B2251/406—Flutes, i.e. chip conveying grooves of special form not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The present invention relates to a kind of boring bar tool, especially rock drill bits, including the drilling head (3) at least a cutting part part (12) and the shank (5) with an at least slot (9), especially spiral slot, wherein, the direction of feed of at least a cutting part part (12) and boring bar tool (1) has the transportation zones (7) for drillings end to be discharged in cutting part (12) on the contrary below.
Description
Technical field
The present invention relates to a kind of boring bar tools, particularly for the rock drill bit of toolroom machine, including have at least a cutting part
The drilling head of part and shank at least a slot, especially spiral slot.
Background technique
Disclose a kind of cutting element in 10 2,010 042 814 A1 of DE, including steel body, have at least one by
The drilling head of cutting part made of hard metal and bonding layer for engaging matrix and drilling head.Matrix and drilling head it
Between bonding layer second joint surface on the first joint surface of matrix and drilling head is joined together.Thus engagement thickness is generated
Degree, it is made up of the axial distance on the first joint surface to the second joint surface of shank of drilling head.This bonding layer thickness can
To be made of the small gap of circumferentially side.It is reduced by the axial distance of drilling head to matrix and is connect during engaging process herein
Layer is closed to be diffused into inside adjacent drilling head and adjacent shank.
Summary of the invention
The object of the present invention is to the boring bar tool for toolroom machine is constituted by simple structural measure in this way, so that
Guarantee boring bar tool drilling result as well as possible in long runing time.
This purpose is realized by a kind of boring bar tool, especially rock drill bit, including having the brill of at least a cutting part part
Cut head and the shank at least a slot, especially spiral slot.According to it is proposed that, at least a cutting part part and drilling
The direction of feed of tool has the transportation zones for drillings end to be discharged behind cutting part on the contrary.
The present invention transports drillings end advantageous by additional transportation zones.Be first for cold boring bar tool, it is described
Slot cannot be sufficiently rapidly from being discharged the drillings end fallen in boring procedure in drilling, therefore pressure increases with drilling depth
Add.The pressure begun to block up from certain drilling depth may increase in this way so that drillings end impact type thrown away from drilling
It goes, this may be uncomfortable for user.Reduce pressure in the borehole by additional transportation zones and cause,
It reduces or there is no drillings ends to throw out from drilling at all.
Boring bar tool according to the invention at least constructs to two bodies and including drilling head, has at least a cutting part part,
With an at least circumference and there are an at least transportation zones, further include shank, there is an at least slot.The cutting part diameter
It is limited to by an at least circumference for drilling head.Here, the drilling head includes transportation zones, it is designed to transport drillings
End.The drilling head is connected by joint face with shank and constitutes boring bar tool.The shank is in the shank for deviating from joint face
There is insertion end, as example as the insertion end provided in 1 621 274 A1 specification of EP on end.Therefore not
Insertion end is described again.
Related to this, " cutting part " is understood to a component, it is placed on drilling head and has at least one especially
The cutting edge of wedge shape, it is designed to by separating come Forming Workpiece.The especially described cutting part can be with fan in drilling head
Constitute and extend on the contrary with direction of feed the joint face of drilling head and shank.Here, the boring bar tool can be with
With 2,3,4,5 or more cutting part.The cutting part can pass through main cutting component and/or secondary cutting part structure
At.
The cutting part can have the structure of carrying, hereinafter referred to as bearing structure, it is for supporting or for holding
Stress and the power guiding (force flow turnover) for being used for cutting force.It is at least partly held on the contrary with boring bar tool direction of feed herein
Stress.Related to this, the bearing structure especially should be buildup of material, it be arranged on cutting part, especially with feeding side
To the joint face being arranged on the contrary behind cutting part and particular up to drilling head.This bearing structure is by cutting part
On power, especially cutting force directs into inside shank from drilling head.The supporting structure is so designed, so that the power guides to obtain
Optimization.Thus cutting force can equably be directed in the shank of boring bar tool and big stress is deviateed and be homogenized.
Here, this bearing structure can be especially made up of inside the drilling head of boring bar tool concave gap.The concave gap
Preferably joint face can be extended to at least partially radially reducing behind cutting part on the contrary with direction of feed.
" transportation zones " are understood to a region, it is added to inside boring bar tool the inside, especially drilling head.It is described to transport
Region forms the additional additional space for being used to be discharged drillings end, it can be additionally provided in for an at least slot for shank.Institute
State transportation zones and boring bar tool direction of feed be placed in the cutting part of drilling head, especially secondary cutting part on the contrary after
Face.The transportation zones can by gap or notch, especially convex shoulder and direction of feed on the contrary behind cutting part at least
It constitutes with extending to joint face with being partially radially reduction.It can alternatively or additionally be transported by depression or cutting composition
Region.If gap is added inside drilling head, material is removed from drilling head, thus changes the bearing structure of cutting part simultaneously
And especially save volume.The transportation zones can be generated by being saved by design bearing structure bring volume.It is described defeated
Fortune region initially axially be introduced into from the joint face of drilling head the longitudinal extent of the circumference of drilling head until 90%,
Preferably until 75%, especially until 50%, preferably up to 25% in.
" circumference " is understood to one side, it extends at least partially along the circumference of boring bar tool, especially drilling head.
Here, the circumference can have transportation zones and circumferential area, they can be tangentially towards boring bar tool circumference
One or more points extends.Here, the circumferential area can extend deviously.The circumferential area is it can be designed so that bore
Hole tool, especially drilling head or cutting blade imported into drilling the inside, and slide along the wall of a borehole.The circumferential area can be set
It counts into, the cutting edge of longitudinal axis limitation cutting part or cutting part at least about boring bar tool radially extends length.Institute
A face, the especially circumference on circumference side can be strutted by multiple points and/or line by stating circumferential area.The circumference area
Domain is the region different from transportation zones.As the increase of transportation zones axial length reduces circumferential area and is therefore used in
The circumference that pilot bore tool is constituted inside drilling reduces.
Thus with common, its circumference until it is short to obtain at least one compared with the cutting part of drilling head joint face
Cutting part, circumference do not extend to drilling head and shank in the longitudinal axis of boring bar tool by transportation zones
Joint face.This brings volume to save and thus reduces drilling head weight.
Suitable improvement project includes: that the transportation zones of at least a cutting part part are constituted in the region of drilling head；
The transportation zones of at least a cutting part part extend to the end in face of drilling head of shank；At least a cutting part part
Transportation zones are transitioned into inside the slot of shank；The drilling head has the first joint face for connecting with shank, its polygon
Ground is constituted；The shank has the second joint face for connecting with drilling head, constitutes to its polygon；First joint face
And/or second joint face hexagon constitute；First joint face and the/the second joint face are constituted with star；Described first connects
Junction and/or the second joint face at least part connect congruently；The drilling head is made of hard metal；The boring bar tool is
Rock drill bit；The slot is spiral slot；First joint face and/or the second joint face are constituted tetragonally.
The transportation zones of at least a cutting part part are at least constituted in drilling head region substantially.At least a cutting part part
Transportation zones be arranged in the region of drilling head, the circle positioned at the rear portion of the circumference for the cutting part seen in feed direction
Between all seamed edges and joint face between drilling head and shank.This reduce it is radial being added on boring bar tool circumference and with
The wall of a borehole circumference that contacts or contact surface, especially wear surface when drilling operation, thus reduce frictional resistance.It is possible thereby to mention
High penetration rate.In addition, reducing the pressure at the drillings end fallen in drilling by additional transportation zones volume.
The transportation zones of at least a cutting part part preferably extend on the shank end in face of drilling head.It is possible thereby to
Drillings end can be made to be transported to the transportation zones of shank from the transportation zones lower resistance of drilling head.
It is preferred that the transportation zones of at least a cutting part part are transitioned into the slot of shank, especially inside spiral slot.Thus
Transportation zones can be increased and drillings end is equably transported by the drilling head of boring bar tool and shank.Furthermore it realizes from drilling
Drillings end is transported to quick and lower resistance along drilling head and shank.The especially described transportation zones can transit directly to shank
Inside slot.
At least a cutting part part is radially protruded relative to longitudinal axis, especially in drill bit and the drilling for facing shank
Region between cephalic par.The cutting part can especially be protruded relative to longitudinal axis to radial wing.Thus at least described
The drilling head of boring bar tool may be constructed transportation zones, and volume is for being discharged drillings end.Transportation zones described herein, which have, to be subtracted
Weight portion, it is possible thereby to improve drilling depth and realize the cost advantage of boring bar tool.
" radially protruding " related to this is interpreted as at least a cutting part part, its at least piecewise is relative to boring bar tool
Longitudinal axis radially protrudes.Here, outstanding, especially wing cutting part is constituted and radially especially inside drilling head
It is characterized on the contrary until circumference passes through a rising since drill bit, with direction of feed, and later at least partly, especially
It passes through a decline characterization until the spaced radial of shank slot.Especially can constantly it decline from circumference.It herein can be with structure
At concave curved surface.Alternatively can suddenly and/or step decline.Thus reduce circumference, thus energetically
Influence frictional behavior.
The transportation zones of the drilling head can have an at least seamed edge, the second seamed edge same form of it and shank slot
Ground especially consistently or without transition extends, and preferably directly, at least part is mutually transitioned into other side and/or at least one
A gradient identical with longitudinal axis.
Can appropriately, the drilling head has the first joint face for connecting with shank, constitutes to its polygon,
And/or the shank has the second joint face for connecting with drilling head, constitutes to its same polygon.Connect in this polygon
Junction is interpreted as a geometry, it is connected with each other on joint face by seamed edge by least three angles different from each other.It is more
The joint face of side shape can have four, five or six angles.Especially polygon joint face can pass through eight, nine or ten
Angle is constituted.It alternatively can also make the first joint face of polygon that there is the angle more than ten.Here, the joint face can be bent
Ground is constituted.The angle for the joint face that polygon is constituted can also be constituted deviously, that is, have at least one radius.Polygon is constituted
The seamed edge of joint face can be made up of curved seamed edge, wherein the seamed edge not only can protrusion but also can concave ground structure
At.
It is preferred that first joint face and/or the second joint face polygon, especially quadrangle, constituting to best rectangle.?
It is contemplated that first joint face and the/the second joint face polygon, especially constituting with star.This two joint faces can be with
At least partly it is arranged mutually staggered.Compared with the circular cross section of drilling, polygon is outwardly overlapped by incomplete
Joint face constitutes a space, it is suitable for transporting drillings end.Thus drillings end can be transported to transportation zones from operating space at once,
Especially when the second joint face also quadrangle, best rectangle or star are constituted.Therefore the transportation zones on joint face
It can be for example made up of an at least sector with fan.It can have in this sector by having around boring bar tool longitudinal axis
The closed round section of the circular arc and circle string of central point.At least substantially dimetric, best rectangle or star-shaped second joint face
It advantageously outwardly can superimposedly be oriented entirely with the first joint face, it is possible thereby to realize the continuous material transfer at drillings end.
Furthermore first joint face and the second joint face at least basic can connect congruently.Alternatively make the first connection
Face and the second joint face are not to constitute congruently.But two joint faces, which are especially less than 95%, to be connected with each other congruently.Alternatively
Each profile of two joint faces can be mutually aligned congruently substantially.It is possible thereby to transport material with realizing smooth and lower resistance
Material.
The drilling head can be advantageously made of hard metal.Drilling head, outstanding can be guaranteed by using hard metal
The longer durability of the cutting part of its drilling head and the boring bar tool service life therefore improved.
Detailed description of the invention
Further advantage is provided by following attached drawing description.The embodiment of the present invention is shown in the accompanying drawings.Attached drawing, specification contain
There is big measure feature to combine.Professional individually considers feature and the significant other combinations of composition in an adequate manner.Show herein
Out:
The perspective view of Fig. 1 boring bar tool,
The drilling head view of Fig. 2 boring bar tool,
The axial of Fig. 3 boring bar tool drilling head,
The side view of Fig. 4 boring bar tool drilling head,
The optional embodiment of Fig. 5 boring bar tool drilling head,
The optional embodiment of Fig. 6 boring bar tool drilling head.
Identical component is furnished with identical appended drawing reference in the accompanying drawings.
Specific embodiment
Boring bar tool 1 is shown respectively, particularly for toolroom machine in following attached drawing, work done campaign and translation with rotation
Feeding.Boring bar tool 1 is particularly suitable for drilling in rock.The toolroom machine is preferably cordless power tool, especially hammer drill, punching
Hit brill or the rotary rig for processing solid material.
There is shank 5 and drilling head 3 according to 1 part of boring bar tool of Fig. 1.Refer in engaging zones 25 at it in this shank 5
It is connect to the end of drilling head 3 with drilling head 3.Shank 5 constitutes elongatedly and extends along the longitudinal axis a of boring bar tool 1.Handle
Bar 5 can be made of steel.It can be alternatively or additionally considered as by special steel, ceramics, cermet or professional significant
Shank is made in raw material.Shank 5 has at least a slot 9, preferably two slot 9, their spiral shapes, especially spirally along boring bar tool
1 longitudinal axis a extends.Spiral slot 9 has the dextrorotation upwardly extended from the drilling head 3 of boring bar tool 1 in 5 side of shank.Extremely
A few slot 9 can be added in shank 5 on the end of 1 drilling head 3 of boring bar tool.An at least slot 9 can be axially along
Shank 5 extend and for clamping boring bar tool 1 inside toolroom machine.It adjacently, is especially extended parallel to spiral slot 9
Two galianconism 10, they equally spirally extend along the longitudinal axis of boring bar tool 1.Galianconism 10 can be equipped with relative to drilling
The radius of 1 longitudinal axis a of tool, it be substantially equal to or at least below drilling head 3 and longitudinal axis a maximum radius.The half of galianconism 10
Diameter is at least partly greater than the radius of boring bar tool drilling head 3 in which also can choose.Galianconism 10 is in cross-section along 5 structure of shank
At substantially cylindrical shape.
Drilling head 3 has drill bit 15, four cutting parts 12 and transportation zones 7.Drilling head 3 has in which also can choose
Have it is less, for example two or three cutting parts or more, such as five cutting parts 12.Drilling head 3 is from drill bit
15 start the engaging zones 25 extended on 5 direction of shank between shank 5 and drilling head 3 along longitudinal axis a.Drilling head
3 have the first joint face 19 of polygon, especially quadrangle, best rectangle on the engaging zones 25 to shank 5.Shank 5 is same
Sample has the second joint face 21 of polygon, especially quadrangle, best rectangle on the engaging zones 25 to drilling head 3.First
Joint face 19 is connect with the second joint face 21 of the shank 5 of boring bar tool 1.First joint face 19 and the second joint face 21 especially may be used
It is connected with each other with being considered as advantageous connection type by welding or other professionals.
Drill bit 15 passes through four cutting parts 12, particularly by two main cutting component 12a and two secondary cutting parts
12b is constituted.It can be shunk towards drill bit 15 in this cutting part 12 and therefore constitute drill bit 15.Two main cutting components
12a can each other symmetrically, especially point symmetry, be preferably arranged with 160 ° to about 180 ° of angle.Two secondary cutting parts
12b can each other symmetrically, especially point symmetry, be preferably arranged with 160 ° to about 180 ° of angle.Cutting part 12, especially
Cutting edge 13 works around the longitudinal axis a of boring bar tool in other words in a rotational direction, that is, cutting part 12 has at least one
Cutting edge 13, it works on dextrorotation gyratory directions.An at least cutting edge 13 can be alternatively or additionally in left-handed revolution side
It works upwards.Cutting part 12, especially cutting edge 13 are radial since the circumferential area 17 of the circumference side 16 of drilling head 3 to be prolonged
It reaches the longitudinal axis a of boring bar tool 1 and at least part or is directly retracted to drill bit 15.
At least a circumferential area 17 is constituted on the circumference side 16 of the drilling head 3 of boring bar tool 1.Circumferential area 17 is at this
It is especially constituted on each cutting part 12 in a embodiment.The circumferential area 17 of cutting part 12 can especially pass through periphery
17 are constituted, its limitation cutting part 12 radially extends length.In this periphery 17 radially with longitudinal axis a with a radius phase
Interval, it at least basically represents the half of boring bar tool diameter.An at least periphery 17 by circular sector and at least substantially along
The direction that longitudinal axis a extends struts.It make periphery arching with can choose constructs, especially surrounds or be transverse to a radius
Construct to longitudinal axis a.
Transportation zones 7 are added to behind secondary cutting part 12b in 3 the inside of drilling head with direction of feed on the contrary.It is especially defeated
Region 7 is transported on the circumference side 16 of secondary cutting part 12b by radially with respect to longitudinal axis a and at least part and direction of feed
The gap 6 that extends on the contrary preferably transports slot composition.It can be constituted concavely in this transportation zones 7.Pass through transportation zones cutting portion
The periphery 17 of part 12 does not extend to the engaging zones 25 of drilling head 3.It is possible thereby to constitute gap 6, especially partly go
Fall the material of the drilling head 3 of the cutting part 12 of adjacent 1 shank 5 of boring bar tool, thus generates the cutting part 12 of wing.Herein
The slot 9 and transportation zones 7, especially transportation zones 7 that shank 5 can advantageously be made transport the mutual transition in face 8 in other side.It transports
Region 7 has in which can choose transports slot, it is transitioned into 9 the inside of slot of shank 5.
Along longitudinal axis a, the cutting part of drilling head 3, especially drilling head 3 on 5 direction of shank since drill bit 15
12 have at least substantially radially from the trend of the longitudinal axis a rising being directed toward, it at least rises to always cutting part 12
Circumferential area 17.This cutting part 12 circumferential area 17 at least substantially axially with the interval edge constant with longitudinal axis a
Longitudinal axis a and/or circumferentially extend.And then at least circumference of a cutting part part 12, especially secondary cutting part 12b
Region 17 can connect transportation zones 7, it is reduced by least local radial obtains at a distance from longitudinal axis a.Distance herein
Radially reduce the engaging zones 25 for extending to boring bar tool 1.Continuously and/or with being mutated it can realize the distance herein
It radially reduces.
The first joint face 19 of the drilling head 3 of boring bar tool 1 is found out in Fig. 2.It is this 19 polygon of the first joint face, outstanding
It constitutes to its hexagon and preferably extends to quadrangle, particularly preferred rectangle.Second joint face 21 is alternatively or additionally same
Constitute to polygon, especially hexagon and quadrangle, best rectangle extend.
First joint face 19 of polygon is matched there are two the seamed edge 40a at least locally extended parallel to each other, they lead to respectively
An at least turning 47a is crossed to connect with the seamed edge 40b of another local arching or bending.An at least seamed edge 40b can by one, it is outstanding
It is made up of two seamed edges.Such as two seamed edges of seamed edge 40b can be connected with each other by a turning 47b.In this seamed edge
40a and seamed edge 40b abuts the first joint face 19 and struts this joint face in the plane for being transverse to longitudinal axis a extension.?
Be respectively set on two seamed edge 40a in feed direction and radially outward, the especially outwardly projecting cutting part 12 in wing ground.Especially
The circumference seamed edge 18 of its periphery 17 that can see cutting part 12.In the circumference seamed edge 18 of this seamed edge 40a and periphery 17
Especially limit transportation zones 7 transports face 8.Seamed edge 40a is it can be designed so that transportation zones are equably transitioned into shank 5 extremely
Few 9 the inside of a slot.
In this transportation zones 7, especially transport the longitudinal axis that face 8 was at least partly transverse to and/or favoured boring bar tool 1
It orients to a and especially constitutes to arching.Thus enable transportation zones 7 by it is opposite with direction of feed rise transport face 8
Trend around longitudinal axis a rotation when from working region conveying drillings end.
Fig. 3 shows the drilling head 3 of the boring bar tool 1 of Fig. 2 with 12 view of cutting part.It can be seen that main cutting component 12a
Arrangement, they with point symmetry, for example can be mutually aligned with 180 ° of angles, and can be seen that secondary cutting part 12b, they are same
Sample with point symmetry, for example can be mutually arranged with 180 ° of angles.Main cutting component 12a and pair cutting part 12b are especially less than 90 °
Angle be mutually arranged.Due to that may subtract particularly by the transportation zones 7 of the direction of feed addition against secondary cutting part 12b
The small power during secondary cutting part 12b boring procedure is born, therefore particularly by the adjacent carrying knot of main cutting component 12a
Structure compensates power receiving again.
Fig. 4 shows the drilling head 3 of the boring bar tool 1 illustrated by side perspective.It can be seen that drill bit 15, main cutting portion
The circumferential area 17 of part 12a and pair cutting part 12b and drilling head 3.As provided via Fig. 2 and another in this view
It is secondary be expressly shown as, extend the secondary cutting part 12b projected radially outwardly from drill bit 15 towards two sides.Equally see
The transportation zones 7 for the secondary cutting part 12b that wing is constituted out transport face 8.Especially transportation zones 7 transport face 8 from circumference area
Domain 17 starts persistently to radially reduce ground on the contrary with direction of feed, preferably extends to bonding land 25 concavely.Therefore pair is cut
At least circumferential area 17 for cutting component 12b does not reach all the way to the bonding land 25 of drilling head.Alternatively, transportation zones 7 transport
Face 8 can suddenly, especially be mutated ground, best step is constituted with reducing.
In the alternative embodiment of the first joint face 19 of Fig. 5, especially similar with the joint face of Fig. 2 19, the first joint face
19 are equally made up of polygon joint face 18, it is strutted with star in this embodiment.It can be in this star-like connection face 19
With star centre point, it can for example be characterized by the longitudinal axis a of drilling head 3.The point can be for being located at joint face herein
Other points constitute connecting line always each of on 19, and wherein this connecting line is fully located at 19 the inside of joint face.Star-like connection
Face 19 is made up of four galianconism 45.Galianconism 45 radially extends since star centre point or longitudinal axis a, until by circumference
Face 17 limits.It is strutted in this galianconism 45 by the periphery 17 of two lateral edges 46 and circumferential area 17.Adjacent galianconism 45 herein
Lateral edges 46 be connected with each other by the turning 47b of rounding.An at least lateral edges 46 for an at least galianconism 45 pass through turning 47a phase
It connects.
Fig. 6 shows another selectable embodiment that face 19 is connected similarly with the joint face 19 of Fig. 6.This joint face 19
There are three galianconism, lateral edges 46 to be especially mutually transitioned into other side for tool.Joint face 19 is in this embodiment equally with Fig. 2's
The same hexagon of joint face 19 is still constituted with star.
Claims (13)
1. a kind of boring bar tool, including the drilling head (3) at least a cutting part part (12) and with the handle of an at least slot (9)
Bar (5), which is characterized in that the direction of feed of at least a cutting part part (12) and boring bar tool (1) is on the contrary in cutting portion
Part (12) has the transportation zones (7) for drillings end to be discharged below, wherein the transportation zones are opened from the joint face of drilling head
Begin the longitudinal extent for being introduced axially into the circumference of drilling head until 90%, wherein at least a cutting part part
(12) radially wing it is prominent relative to longitudinal axis (a), and wherein the cutting part of wing outstanding radially from drill bit
Point starts to characterize until circumference passes through a rising on the contrary with direction of feed, and later at least partially through under one
Petition of surrender sign.
2. boring bar tool as described in claim 1, which is characterized in that the transportation zones of at least a cutting part part (12)
(7) it is constituted in the region of drilling head (3).
3. boring bar tool as claimed in claim 1 or 2, which is characterized in that at least a cutting part part (12) transports area
Domain (7) extends to the end in face of drilling head (3) of shank (5).
4. boring bar tool as claimed in claim 1 or 2, which is characterized in that at least a cutting part part (12) transports area
Domain (7) is transitioned into inside the slot (9) of shank (5).
5. boring bar tool as claimed in claim 1 or 2, which is characterized in that the drilling head (3) have for shank (5)
The first joint face (19) of connection, is constituted to the first joint face polygon.
6. boring bar tool as claimed in claim 5, which is characterized in that the shank (5) has for connecting with drilling head (3)
The second joint face (21), constitute to the second joint face polygon.
7. boring bar tool as claimed in claim 6, which is characterized in that first joint face (19) and/or the second joint face
(21) it constitutes to hexagon.
8. boring bar tool as claimed in claim 6, which is characterized in that first joint face (19) and/the second joint face
(21) it constitutes with star.
9. boring bar tool as claimed in claim 6, which is characterized in that first joint face (19) and/or the second joint face
(21) at least part connects congruently.
10. boring bar tool as claimed in claim 1 or 2, which is characterized in that the drilling head (3) is made of hard metal.
11. boring bar tool as described in claim 1, which is characterized in that the boring bar tool is rock drill bit.
12. boring bar tool as described in claim 1, which is characterized in that the slot (9) is spiral slot.
13. boring bar tool as claimed in claim 6, which is characterized in that first joint face (19) and/or the second joint face
(21) it constitutes tetragonally.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014203327.6 | 2014-02-25 | ||
| DE102014203327.6A DE102014203327A1 (en) | 2014-02-25 | 2014-02-25 | drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104859057A CN104859057A (en) | 2015-08-26 |
| CN104859057B true CN104859057B (en) | 2019-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510087146.9A Active CN104859057B (en) | 2014-02-25 | 2015-02-25 | Boring bar tool |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104859057B (en) |
| DE (1) | DE102014203327A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3082236B1 (en) | 2018-06-11 | 2021-04-16 | Psa Automobiles Sa | DETECTION PROCESS OF AN OXIDATION CATALYST IN THE EXHAUST LINE OF A DIESEL ENGINE AND USE OF THE SAID PROCESS FOR MOTOR VEHICLES EQUIPPED WITH DIESEL ENGINES |
| DE102021202559A1 (en) | 2021-03-16 | 2022-09-22 | Robert Bosch Gesellschaft mit beschränkter Haftung | Cutting body and drilling tool with a cutting body |
| EP4375476A1 (en) * | 2022-11-22 | 2024-05-29 | Hilti Aktiengesellschaft | Rock drill with five cutters |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE832379C (en) * | 1950-06-06 | 1952-02-25 | Carl Sauer | Wall and concrete auger bits and process for their manufacture |
| DE3436365A1 (en) * | 1983-12-23 | 1985-07-04 | Veb Werkzeugkombinat Schmalkalden, Ddr 6080 Schmalkalden | Drilling tool, especially for stone-working |
| DE9211782U1 (en) * | 1991-11-19 | 1993-03-18 | Eischeid, Karl, 5250 Engelskirchen | drill |
| CN1116683A (en) * | 1994-06-04 | 1996-02-14 | 希尔蒂股份公司 | Core bits |
| CN1652910A (en) * | 2002-06-06 | 2005-08-10 | 株式会社宫永 | Drill bit |
| EP1621274A1 (en) * | 2004-07-27 | 2006-02-01 | BLACK & DECKER INC. | A drill bit |
| EP2444184A1 (en) * | 2010-10-22 | 2012-04-25 | HILTI Aktiengesellschaft | Cutting tool and method for its production |
| CN103358404A (en) * | 2012-03-28 | 2013-10-23 | 博世电动工具（中国）有限公司 | Drilling tool and drilling bit thereof |
-
2014
- 2014-02-25 DE DE102014203327.6A patent/DE102014203327A1/en not_active Ceased
-
2015
- 2015-02-25 CN CN201510087146.9A patent/CN104859057B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE832379C (en) * | 1950-06-06 | 1952-02-25 | Carl Sauer | Wall and concrete auger bits and process for their manufacture |
| DE3436365A1 (en) * | 1983-12-23 | 1985-07-04 | Veb Werkzeugkombinat Schmalkalden, Ddr 6080 Schmalkalden | Drilling tool, especially for stone-working |
| DE9211782U1 (en) * | 1991-11-19 | 1993-03-18 | Eischeid, Karl, 5250 Engelskirchen | drill |
| CN1116683A (en) * | 1994-06-04 | 1996-02-14 | 希尔蒂股份公司 | Core bits |
| CN1652910A (en) * | 2002-06-06 | 2005-08-10 | 株式会社宫永 | Drill bit |
| EP1621274A1 (en) * | 2004-07-27 | 2006-02-01 | BLACK & DECKER INC. | A drill bit |
| EP2444184A1 (en) * | 2010-10-22 | 2012-04-25 | HILTI Aktiengesellschaft | Cutting tool and method for its production |
| CN103358404A (en) * | 2012-03-28 | 2013-10-23 | 博世电动工具（中国）有限公司 | Drilling tool and drilling bit thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104859057A (en) | 2015-08-26 |
| DE102014203327A1 (en) | 2015-08-27 |
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