CN104859057A - Drilling tool - Google Patents
Drilling tool Download PDFInfo
- Publication number
- CN104859057A CN104859057A CN201510087146.9A CN201510087146A CN104859057A CN 104859057 A CN104859057 A CN 104859057A CN 201510087146 A CN201510087146 A CN 201510087146A CN 104859057 A CN104859057 A CN 104859057A
- Authority
- CN
- China
- Prior art keywords
- drilling head
- cutting part
- boring bar
- joint face
- bar tool
- 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.)
- Granted
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Classifications
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- 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
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- 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
-
- 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
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- 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 invention relates to a drilling tool, in particular rock drill, comprising a drill head (3) with at least one cutting element (12) and having a handle (5) with at least one groove (9), in particular a helical groove, wherein at least one cutting element (12) againsts the feed direction of the drilling tool (1) behind the cutting element (12) comprises a transport section (7) for removal of drilling dust.
Description
Technical field
The present invention relates to a kind of boring bar tool, be particularly useful for the rock drill bit of toolroom machine, comprise the drilling head with at least one cutting part and the handle bar with at least one groove, especially spiral slot.
Background technology
In DE 10 2,010 042 814 A1, disclose a kind of cutting element, comprise steel body, there is the drilling head of at least one cutting part be made up of hard metal and the bonding layer for engaging matrix and drilling head.First composition surface of matrix and the second composition surface of drilling head are joined together by the bonding layer between matrix and drilling head.Produce bonding layer thickness thus, it is consisted of the first composition surface of drilling head axial distance to the second composition surface of handle bar.Can be made up of the little space of circumferentially side at this bonding layer thickness.Be diffused into inside adjacent drilling head and adjacent handle bar by axial distance minimizing engaging process during the bonding layer of drilling head to matrix at this.
Summary of the invention
The object of the invention is, be configured for the boring bar tool of toolroom machine by simple structural measure like this, make to ensure the drilling result that boring bar tool is as well as possible on long running time.
This object is realized by a kind of boring bar tool, especially rock drill bit, comprises the drilling head with at least one cutting part and the handle bar with at least one groove, especially spiral slot.According to the present invention's suggestion, the direction of feed of described at least one cutting part and boring bar tool has the transportation zones for discharging drillings end on the contrary after cutting part.
The present invention transports drillings end advantageous by additional transportation zones.First be for cold boring bar tool, described groove can not discharge the drillings end fallen in boring procedure enough rapidly from boring, and therefore pressure increases along with drilling depth.From certain drilling depth, the pressure of blocking may raise like this, and throw out from boring with making drillings end impact type, this may be uncomfortable for user.Make pressure in the borehole reduce and cause by additional transportation zones, reduce or no longer include drillings end at all and throw out from boring.
Construct according to boring bar tool at least two body of the present invention and comprise drilling head, there is at least one cutting part, there is at least one circumference and there is at least one transportation zones, also comprising handle bar, there is at least one groove.Described cutting part is radial through at least one circumference restriction of drilling head.At this, described drilling head comprises transportation zones, and it is designed to transport drillings end.Described drilling head and handle bar are connected by joint face and form boring bar tool.Described handle bar has insertion end on the handle boom end deviating from joint face, as such as by the insertion end provided in EP 1 621 274 A1 description.Therefore no longer describe and insert end.
Related to this, " cutting part " is appreciated that to be parts, and it to be placed on drilling head and to have the cutting edge of at least one especially wedge shape, and it is designed by separation and carrys out Forming Workpiece.Especially described cutting part can be formed and extends to the joint face of drilling head and handle bar on the contrary with direction of feed by fan in drilling head.At this, described boring bar tool can have 2, the cutting part of 3,4,5 or more.Described cutting part can be consisted of main cutting parts and/or secondary cutting part.
Described cutting part can have the structure of carrying, and hereinafter referred to bearing structure, it is for supporting or guide for holding capacity and for the power of cutting force (power circulation folding).This at least in part with boring bar tool direction of feed holding capacity on the contrary.Related to this, described bearing structure especially should be buildup of material, and it is arranged on cutting part, especially with direction of feed to be arranged on the contrary after cutting part and to reach the joint face of drilling head always.Power on cutting part, especially cutting force will direct into inside handle bar from drilling head by this bearing structure.This supporting structure is so designed, and this power is guided and is optimized.Cutting force can be directed in the handle bar of boring bar tool and that large stress is departed from is homogenized equably thus.At this, this bearing structure especially can be consisted of inside the drilling head of boring bar tool recessed space.Described recessed space preferably can extend to joint face with reducing with direction of feed is radial at least in part after cutting part on the contrary.
" transportation zones " is appreciated that to be a region, and it joins inside boring bar tool, especially inside drilling head.Described transportation zones forms the additional additional space for discharging drillings end, and it additionally can be arranged at least one groove of handle bar.The direction of feed of described transportation zones and boring bar tool is placed in after the cutting part of drilling head, especially secondary cutting part on the contrary.Described transportation zones can by space or breach, especially convex shoulder and direction of feed be radial at least in part after cutting part on the contrary forms with extending to joint face with reducing.Transportation zones can be formed alternatively or additionally by depression or cutting.If add space inside drilling head, then remove material from drilling head, change the bearing structure of cutting part thus and especially save volume.Described transportation zones can be saved by the volume brought by design bearing structure and produce.Described transportation zones be axially incorporated 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 until in 25%.
" circumference " is appreciated that to be a side, and it extends along the circumference of boring bar tool, especially drilling head at least in part.At this, described circumference can have transportation zones and circumferential area, and they can tangentially towards one or more extensions of boring bar tool circumference.At this, described circumferential area can extend deviously.Described circumferential area can be designed to, and makes boring bar tool, especially drilling head or cutting blade import to boring the inside, and slides along the wall of a borehole.Described circumferential area can be designed to, at least around the longitudinal axis restriction cutting part of boring bar tool or the radial development length of cutting edge of cutting part.Described circumferential area can strut a face by multiple point and/or line, the circumference especially on circumference side.Described circumferential area is the region different from transportation zones.Increase along with transportation zones axial length makes circumferential area reduce and is therefore used in pilot bore instrument to reduce at the circumference of boring the inside formation.
Thus with common, its circumference until compared with the cutting part of drilling head joint face, obtain at least one short cutting part, its circumference does not extend to the joint face of drilling head and handle bar in the longitudinal axis of boring bar tool by transportation zones.This brings volume to save and reduces drilling head weight thus.
Dependent claims provides suitable improvement project.
The transportation zones of described at least one cutting part is at least basic to be formed in drilling head region.The transportation zones of at least one cutting part is arranged in the region of drilling head, between the circumference seamed edge and the joint face between drilling head and handle bar at the rear portion of the circumference of the cutting part seen in feed direction.This reduce radial direction join boring bar tool circumferentially and the circumference contacted when holing and running with the wall of a borehole or contact surface, especially wear surface, reduce frictional resistance thus.Penetration rate can be improved thus.In addition, the pressure at the drillings end fallen when holing is reduced by additional transportation zones volume.
The transportation zones of described at least one cutting part preferably extends on the handle boom end in the face of drilling head.Be transported to the transportation zones of handle bar with can making the last transportation zones lower resistance from drilling head of drillings thus.
The transportation zones of preferred described at least one cutting part is transitioned into inside groove, the especially spiral slot of handle bar.Can transportation zones be strengthened thus and transport drillings end equably by the drilling head of boring bar tool and handle bar.In addition to realize from boring along drilling head and handle bar fast and lower resistance transport drillings end.Especially described transportation zones can transit directly to inside the groove of handle bar.
Described at least one cutting part is radially given prominence to relative to longitudinal axis, especially in drill bit and the region between the drilling head end of handle bar.Described cutting part especially can be given prominence to relative to longitudinal axis on radial wing ground.The drilling head of at least described boring bar tool can form transportation zones thus, and its volume is for discharging drillings end.Said transportation zones has loss of weight portion, can improve drilling depth thus and realize the cost advantage of boring bar tool.
" radially giving prominence to " related to this is interpreted as at least one cutting part, and it is at least radially given prominence to relative to the longitudinal axis of boring bar tool piecewise.At this, give prominence to, especially the cutting part of wing form inside drilling head and radially especially from drill bit, with direction of feed on the contrary until circumference is risen by one characterizes, and afterwards at least in part, especially until the spaced radial of handle bar groove is by a decline sign.Especially can decline from circumference constantly.Recessed curved surface can be formed at this.Alternatively can suddenly and/or step ground decline.Reduce circumference thus, affect frictional behavior energetically thus.
The transportation zones of described drilling head can have at least one seamed edge, second seamed edge same form ground of it and handle bar groove, especially as one man or without transition to extend, preferably directly, at least local be mutually transitioned in the other side and/or there is at least one gradient identical with longitudinal axis.
Can desirably, described drilling head has the first joint face for being connected with handle bar, and its polygon ground is formed, and/or described handle bar has the second joint face for being connected with drilling head, and its same polygon ground is formed.Be interpreted as a geometry at this polygon joint face, it is interconnected by seamed edge on joint face by least three angles different from each other.Polygonal joint face can have four, five or six angles.Especially polygon joint face can be consisted of eight, nine or ten angles.Polygon first joint face alternatively also can be made to have angle more than ten.At this, described joint face can be formed deviously.The angle of the joint face that polygon is formed also can be formed deviously, that is, have at least one radius.The seamed edge of the joint face that polygon is formed can be consisted of bending seamed edge, and wherein said seamed edge not only can be protruding but also can form recessedly.
Preferably described first joint face and/or the second joint face polygon, especially quadrangle, preferably rectangular area are formed.Also it is contemplated that, described first joint face and the/the second joint face polygon, to form especially with star.Can arrange with mutually staggering at least in part at these two joint faces.Compared with the circular cross section of boring, form a space by incomplete superimposed polygonal joint face outwardly, it is suitable for transporting drillings end.Drillings end can be transported to transportation zones from operating space at once thus, especially when the second joint face also quadrangle, preferably rectangle or star are formed time.Therefore the transportation zones on joint face can such as be consisted of at least one sector by fan.Can have by having around the circular arc of the central point of the boring bar tool longitudinal axis round section closed with circle string at this sector.At least substantially, dimetric, best rectangle or the second joint face of star can be advantageously complete superimposedly directed outwardly with the first joint face, the continuous print material transfer at drillings end can be realized thus.
In addition described first joint face and the second joint face can be connected congruently at least substantially.Alternatively make the first joint face and the second joint face not be form congruently.But two joint faces are especially less than 95% and are interconnected congruently.Alternatively each profile of two joint faces can be aimed on congruence ground substantially mutually.Smooth and easy and lower resistance ground conveying material can be realized thus.
Described drilling head can be advantageously made up of hard metal.The durability that the cutting part of drilling head, especially drilling head is longer can be ensured and the boring bar tool service life of therefore improving by using hard metal.
Accompanying drawing explanation
Described by accompanying drawing below and provide other advantage.Embodiments of the invention shown in the drawings.Accompanying drawing, description and claim contain a large amount of Feature Combination.Professional considers feature separately in an adequate manner and forms other combination significant.At this illustrate:
The stereogram 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 embodiment selected of Fig. 5 boring bar tool drilling head,
The embodiment selected of Fig. 6 boring bar tool drilling head.
Parts identical are in the accompanying drawings furnished with identical Reference numeral.
Detailed description of the invention
Accompanying drawing below illustrates boring bar tool 1 respectively, is particularly useful for toolroom machine, has the work done campaign of rotation and the feeding of translation.Boring bar tool 1 is particularly useful for holing in rock.Described toolroom machine is cordless power tool, especially hammer drill, percussion drill or the rotary rig for processing solid material preferably.
According to boring bar tool 1 local of Fig. 1, there is handle bar 5 and drilling head 3.The end pointing to drilling head 3 at engaging zones 25 at it at this handle bar 5 is connected with drilling head 3.Handle bar 5 is formed microsclerly and longitudinal axis a along boring bar tool 1 extends.Handle bar 5 can be made up of steel.Significant raw material can be considered as by special steel, pottery, cermet or professional alternatively or additionally and make handle bar.Handle bar 5 has at least one groove 9, best two grooves 9, their spiralitys, extends along the longitudinal axis a of boring bar tool 1 especially spirally.Spiral groove 9 has the dextrorotation extended in handle bar 5 direction from the drilling head 3 of boring bar tool 1.At least one groove 9 can join on the end deviating from boring bar tool 1 drilling head 3 on handle bar 5.At least one groove 9 can axially to extend and for clamping boring bar tool 1 inside toolroom machine along handle bar 5.Extend two galianconism 10 adjacently, especially abreast with spiral slot 9, they equally spirally extend along the longitudinal axis of boring bar tool 1.Galianconism 10 can be furnished with the radius relative to boring bar tool 1 longitudinal axis a, and it substantially equals or is at least less than the maximum radius of drilling head 3 and longitudinal axis a.The radius of galianconism 10 also selectively can be greater than the radius of boring bar tool drilling head 3 at least in part.Galianconism 10 forms columniform shape substantially along handle bar 5 in cross-section.
Drilling head 3 has drill bit 15, four cutting parts 12 and transportation zones 7.Drilling head 3 also can selectively have less, such as two or three cutting parts or more, such as five cutting parts 12.Drilling head 3 to extend to the engaging zones 25 between handle bar 5 and drilling head 3 along longitudinal axis a from drill bit 15 in handle bar 5 direction.Drilling head 3 has the first joint face 19 of polygon, especially quadrangle, preferably rectangle to the engaging zones 25 of handle bar 5.Handle bar 5 is equally at second joint face 21 to the engaging zones 25 of drilling head 3 with polygon, especially quadrangle, preferably rectangle.First joint face 19 is connected with the second joint face 21 of the handle bar 5 of boring bar tool 1.First joint face 19 and the second joint face 21 especially can be considered as favourable connected mode by welding or other professional and be interconnected.
Drill bit 15 passes through four cutting parts 12, forms particularly by two main cutting parts 12a and two secondary cutting part 12b.Can shrink towards drill bit 15 at this cutting part 12 and therefore form drill bit 15.Two main cutting parts 12a can each other symmetrically, especially point symmetry ground, preferably arrange with the angle of 160 ° to about 180 °.。Two secondary cutting part 12b can each other symmetrically, especially point symmetry ground, preferably arrange with the angle of 160 ° to about 180 °.Cutting part 12, especially cutting edge 13 work around the longitudinal axis a of boring bar tool in a rotational direction in other words, that is, cutting part 12 has at least one cutting edge 13, and it works on dextrorotation gyratory directions.At least one cutting edge 13 can work alternatively or additionally on left-handed gyratory directions.Cutting part 12, especially cutting edge 13 radial direction from the circumferential area 17 of the circumference side 16 of drilling head 3 extend to boring bar tool 1 longitudinal axis a and at least local or be directly retracted to drill bit 15.
At least one circumferential area 17 is formed on the circumference side 16 of the drilling head 3 of boring bar tool 1.Circumferential area 17 is especially formed in this embodiment on each cutting part 12.The circumferential area 17 of cutting part 12 especially can be consisted of periphery 17, the radial development length of its restriction cutting part 12.In this periphery 17 radial direction with longitudinal axis a with a radius separately, the half of its at least basic representation boring bar tool diameter.At least one periphery 17 is strutted by circular sector and at least basic direction extended along longitudinal axis a.Construct with selectively can making periphery arching, especially with a radius around or construct with being transverse to longitudinal axis a.
Transportation zones 7 joins on the contrary after secondary cutting part 12b with direction of feed inside drilling head 3.Especially transportation zones 7 on the circumference side 16 of secondary cutting part 12b by radially with respect to longitudinal axis a and at least local contrary with direction of feed extend space 6, preferably transport groove and form.Can be recessed in this transportation zones 7 form.The engaging zones 25 of drilling head 3 is not extended to by the periphery 17 of transportation zones cutting part 12.Space 6 can be formed thus, especially partly remove the material of the drilling head 3 of the cutting part 12 of adjacent boring bar tool 1 handle bar 5, produce the cutting part 12 of wing thus.Advantageously can make the mutual transition in the face that transports 8 of the groove 9 of handle bar 5 and transportation zones 7, especially transportation zones 7 in the other side at this.Transportation zones 7 selectively can have and transports groove, inside the groove 9 that it is transitioned into handle bar 5.
From drill bit 15 on handle bar 5 direction along longitudinal axis a, the cutting part 12 of drilling head 3, especially drilling head 3 has the trend of the rising at least substantially radially pointed to from longitudinal axis a, and it rises to the circumferential area 17 of cutting part 12 at least always.This cutting part 12 circumferential area 17 at least substantially axially with and the constant interval of longitudinal axis a along longitudinal axis a and/or circumferentially extend.And then the circumferential area 17 of at least one cutting part 12, especially secondary cutting part 12b can connect transportation zones 7, and it reduces to obtain with the distance of longitudinal axis a by least local radial.The engaging zones 25 extending to boring bar tool 1 is reduced in the radial direction of this distance.This can continuously and/or sudden change realize this distance radial direction reduce.
Find out the first joint face 19 of the drilling head 3 of boring bar tool 1 in fig. 2.This first joint face 19 polygon, especially hexagon ground is formed and preferably quadrangle, particularly preferably rectangular area extend.Second joint face 21 forms alternatively or additionally same polygon, especially hexagon and quadrangle, preferably rectangular area extend.
Polygonal first joint face 19 is furnished with two seamed edge 40a at least locally extended parallel to each other, and they are connected with the seamed edge 40b of another local arching or bending respectively by least one turning 47a.At least one seamed edge 40b can pass through one, form particularly by two seamed edges.Two seamed edges of such as seamed edge 40b can be interconnected by a turning 47b.Adjoin the first joint face 19 at this seamed edge 40a and seamed edge 40b and strut this joint face in the plane being transverse to longitudinal axis a extension.Two seamed edge 40a to be separately positioned in direction of feed and radially outward, especially wing ground cutting part 12 outwardly.Especially the circumference seamed edge 18 of the periphery 17 of cutting part 12 can be seen.Especially the face that transports 8 of transportation zones 7 is limited at the circumference seamed edge 18 of this seamed edge 40a and periphery 17.Seamed edge 40a can be designed to, and transportation zones is transitioned into inside at least one groove 9 of handle bar 5 equably.
In this transportation zones 7, especially transporting face 8, to be transverse to and/or to favour the longitudinal axis a ground of boring bar tool 1 at least in part directed and especially form to arching.Make transportation zones 7 can carry drillings end from working region when rotating around longitudinal axis a by the trend in the face that transports 8 of rising contrary to direction of feed thus.
Fig. 3 illustrates the drilling head 3 of the boring bar tool 1 of Fig. 2 with cutting part 12 view.The layout of main cutting parts 12a can be found out, they can point symmetry ground, such as mutually aim at 180 ° of angles, and secondary cutting part 12b can be found out, they equally can point symmetry ground, such as mutually arrange with 180 ° of angles.Main cutting parts 12a and secondary cutting part 12b is especially arranged mutually with the angle being less than 90 °.Because the power that may reduce particularly by the transportation zones 7 added in the direction of feed against secondary cutting part 12b during secondary cutting part 12b boring procedure is born, therefore compensate again this power particularly by the adjacent bearing structure of main cutting parts 12a and bear.
Fig. 4 illustrates the drilling head 3 of the boring bar tool 1 illustrated by side perspective.The circumferential area 17 of drill bit 15, main cutting parts 12a and secondary cutting part 12b and drilling head 3 can be found out.As provided by Fig. 2 and obviously illustrate again in this view, extend radially outward outstanding secondary cutting part 12b from drill bit 15 towards two sides.Find out the face that transports 8 of the transportation zones 7 of the secondary cutting part 12b that wing is formed equally.Especially the face that transports 8 of transportation zones 7 continue on the contrary with direction of feed from circumferential area 17 radial reduces, preferably recessed extend to bonding land 25.Therefore at least one circumferential area 17 of secondary cutting part 12b does not reach all the way to the bonding land 25 of drilling head.Alternatively, can suddenly, especially suddenly change ground, preferably step of the face that transports 8 of transportation zones 7 is formed with reducing.
In the alternative of first joint face 19 of Fig. 5, especially similar with the joint face 19 of Fig. 2, the first joint face 19 is consisted of polygon joint face 18 equally, and it struts in this embodiment with star.Can have star centre point in this Y-connection face 19, it such as can be characterized by the longitudinal axis a of drilling head 3.Can for other some formation each connecting line be always positioned on joint face 19 at this this point, wherein this connecting line is positioned at inside joint face 19 completely.Y-connection face 19 is consisted of four galianconism 45.Galianconism 45 radially extends from star centre point or longitudinal axis a, until limited by periphery 17.Strut at the periphery 17 of this galianconism 45 by two lateral edges 46 and circumferential area 17.Be interconnected by the turning 47b of rounding in the lateral edges 46 of this adjacent galianconism 45.At least one lateral edges 46 of at least one galianconism 45 is interconnected by turning 47a.
Fig. 6 illustrates another the selectable embodiment with the joint face 19 of Fig. 6 joint face 19 similarly.This joint face 19 has three galianconism, and its lateral edges 46 is transitioned in the other side especially mutually.But joint face 19 is formed with the same hexagon of joint face 19 of Fig. 2 in this embodiment equally with star.
Claims (11)
1. a boring bar tool, especially rock drill bit, comprise the drilling head (3) with at least one cutting part (12) and the handle bar (5) with at least one groove (9), especially spiral slot, it is characterized in that, described at least one cutting part (12) has the transportation zones (7) for discharging drillings end below at cutting part (12) on the contrary with the direction of feed of boring bar tool (1).
2. boring bar tool as claimed in claim 1, it is characterized in that, the transportation zones (7) of described at least one cutting part (12) is formed substantially in the region of drilling head (3).
3. the boring bar tool according to any one of the claims, is characterized in that, the transportation zones (7) of described at least one cutting part (12) extends to the end in the face of drilling head (3) of handle bar (5).
4. the boring bar tool according to any one of the claims, is characterized in that, the transportation zones (7) of described at least one cutting part (12) is transitioned into groove (9) the inside of handle bar (5).
5. the boring bar tool according to any one of the claims, is characterized in that, described at least one cutting part (12) is radially given prominence to relative to longitudinal axis (a).
6. the boring bar tool according to any one of the claims, is characterized in that, described drilling head (3) has the first joint face (19) for being connected with handle bar (5), and its polygon ground is formed.
7. the boring bar tool according to any one of the claims, is characterized in that, described handle bar (5) has the second joint face (21) for being connected with drilling head (3), and its polygon ground is formed.
8. boring bar tool as claimed in claims 6 or 7, is characterized in that, described first joint face (19) and/or the second joint face (21) hexagon, especially tetragonal to form.
9. the boring bar tool as described in item at least one in claim 6 to 8, is characterized in that, described first joint face (19) and/the second joint face (21) are formed with star.
10. the boring bar tool as described in item at least one in claim 6 to 9, is characterized in that, described first joint face (19) and/or the second joint face (21) at least local connect congruently.
11. boring bar tools according to any one of the claims, it is characterized in that, described drilling head (3) is made up of hard metal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014203327.6A DE102014203327A1 (en) | 2014-02-25 | 2014-02-25 | drilling |
| DE102014203327.6 | 2014-02-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104859057A true CN104859057A (en) | 2015-08-26 |
| CN104859057B CN104859057B (en) | 2019-06-18 |
Family
ID=53782425
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 (2)
| 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 |
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|---|---|---|---|---|
| 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, De | |
| 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, De | |
| 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 |
|---|---|
| DE102014203327A1 (en) | 2015-08-27 |
| CN104859057B (en) | 2019-06-18 |
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