CN101906937A - Compound drill - Google Patents
Compound drill Download PDFInfo
- Publication number
- CN101906937A CN101906937A CN 201010181539 CN201010181539A CN101906937A CN 101906937 A CN101906937 A CN 101906937A CN 201010181539 CN201010181539 CN 201010181539 CN 201010181539 A CN201010181539 A CN 201010181539A CN 101906937 A CN101906937 A CN 101906937A
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- cutting
- face
- cutting edge
- little
- drill bit
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- 150000001875 compounds Chemical class 0.000 title claims abstract 4
- 230000005855 radiation Effects 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims description 45
- 238000003466 welding Methods 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims 1
- 230000003467 diminishing effect Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000010354 integration Effects 0.000 description 5
- 238000005553 drilling Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a compound drill, which has high radiation efficiency, high strength, a long service life and an obvious energy-saving effect. The compound drill comprises a tool head, wherein the tool head is integrally provided with a plurality of small drills; each small drill is provided with a tool bit with relatively high rigidity; the face, facing a cutting direction, of the tool bit is a cutting face; a top edge of the tool bit is a cutting edge; the extension direction of the bottom cutting edge of the cutting face is a feeding direction; the rear part of the cutting face is a rear cutting face, while the outside part is a secondary cutting face; the intersecting line of the cutting face and the secondary cutting face is a secondary cutting edge; the tool head is distributed like a stage on the rear cutting face or the cutting face in the feeding direction and the cutting direction; a groove is formed on the cutting face or the rear cutting edge; the cutting edges are also distributed stepwise or like cutting edges with a concave edge; the original cutting edge is decomposed into a plurality of small cutting edges which have a cutting platform or a radiation platform or the groove to improve cutting strength and resolve a cutting force; and thus, the cutting efficiency of the tool head is improved and the service life of the tool bit is prolonged.
Description
Technical field
The present invention relates to a kind of composite drill bit, this composite drill bit is used for the headwork that mine boring is blown out.
At present, bore in the mining excavation work and blow out composite drill bit that the hole uses by two or three little drill bits, higher cutter head such as the cutter heads such as wolfram steel or carbide alloy or diamond of welding hardness on each little drill bit, and the drilling cutting edge of cutter head is generally circle, and pointed or rectangle cutter head, the drill bit of this type of shape resistance when boring is big, the boring effort, swing is big, is difficult to grasp rig, the generation of the accidents such as the ore particles Da Yi extruding drilling rod that gets off causes that the rig counter-rotating is hurted sb.'s feelings of cutting.
Summary of the invention:
The present invention proposes in view of the above-mentioned problems, is purpose so that a kind of novel composite drill bit to be provided, this kind cutter radiating efficiency height, and good energy-conserving effect, the life-span is long, and cutting is Powdered easy discharge when drilling.
In order to achieve the above object, the present invention adopts following technical proposals;
A kind of composite drill bit, comprise cutterhead, it is characterized in that, cutterhead is provided with a plurality of little drill bits integratedly, the cutting of each little drill bit is crept into the position and is welded the higher cutter head of a hardness, the face towards cutting direction of cutter head is the cutting face, the top cutting edge of cutter head is a cutting edge, the bottom in cutting face is a direction of feed to the direction that cutting edge extends, the back side portion in cutting face is that the rear face of cutting edge is the cutting face, back, the outer side edges in cutting face is a front cutting edge, front cutting edge extends rearward to be secondary cutting face, the cutting edge of cutter head is stepped and extend to the cutting face that to make the cutting face also be stepped distribution on cutting direction, is one-level heat radiation platform at least, and cutting edge is decomposed into the combined cut sword.
Preferably the cutting edge of the cutter head that on the little drill bit of described composite drill bit, welds in the cutting face on the direction of feed of cutting edge, stepped and the cutting face extension backward of cutting edge, make the also stepped cutting platform that is distributed as in cutting face, back, cutting edge is decomposed into the combined cut sword.
Preferably the cutting edge of the sword head that welds on the little drill bit of described composite drill bit has the recess sword on direction of feed, and extends back and be distributed in back cutting face upper shed and amplify gradually and form groove, and cutting edge is decomposed into the combined cut sword.
Preferably the cutting edge of the cutter head that welds on the little drill bit of described composite drill bit has the recess sword on cutting direction, and extends to the cutting face and to be opening and to amplify row gradually and become groove, and cutting edge is decomposed into the combined cut sword.
Preferably the cutter head that welds on the little drill bit of described composite drill bit is the cutting edge that stair-stepping cutting edge and band recess sword are arranged, the combined cut sword that combines.
Preferably the cutting edge of the cutter head that welds on the little drill bit of described composite drill bit is the triangle that sharp sword makes progress, Yi Bian the cutting edge on triangle both sides is the combined cut sword at least.
Preferably the cutting edge of the cutter head that welds on the little drill bit of described composite drill bit is semicircle cutting edge, and semicircular cutting edge is split into combined type semicircle cutting edge.
Preferably the cutting edge of the cutter head that welds on the little drill bit of described composite drill bit is trapezoidal cutting edge, and trapezoidal cutting edge cutting edge at least on one side is the combined cut sword.
Cutting edge at least a portion of the arbitrary shape of the cutter head of the arbitrary shape that on the little drill bit of described composite drill bit, welds or all be the combined cut sword preferably.
Description of drawings
Technical scheme of the present invention and advantage will be described in detail in conjunction with the drawings, in this accompanying drawing:
Fig. 1 is the schematic diagram of the composite drill bit of first embodiment of the present invention.
Fig. 2 is the schematic diagram of the composite drill bit of second embodiment of the present invention.
Fig. 3 is the schematic diagram of the composite drill bit of the 3rd embodiment of the present invention.
Fig. 4 is the schematic diagram of the composite drill bit of the 4th embodiment of the present invention.
Fig. 5 is the schematic diagram of the composite drill bit of the 5th embodiment of the present invention.
The specific embodiment
To explain the preferred implementation of composite drill bit of the present invention in conjunction with the drawings below, main in embodiment 1-7 is that example describes with the cutter with two little drill bits.In the following description, identical parts use identical symbol and omission to its specific description.
As shown in Figure 1, the composite drill bit of first embodiment of the present invention comprises little drill bit and cutter head, at least two little drill bits are set on the composite drill bit integratedly, one cutter head 3 towards cutting direction is set on each little drill bit, each cutter head 3 form front cutting edge 4 towards cutting direction, the face towards cutting direction at front cutting edge 4 places forms cutting face 5, the face of the rear side in cutting face 5 forms cutting face 6, back, on the end face 7 of sword head, be formed with one-level stage portion 71, two stage steps portion 72, three grades of stage portion 73, the intersection in every cutting face 5 forms cutting edge 8, cutting edge 8 by stage portion 7 resolve into one-level cutting edge 81 ', 81, secondary cutting edge 82, three grades of cutting edges 83, the outer peripheral edges of every grade of step tilt with respect to the outer bead of cutter head 3, described cutting face 5 is formed with fillet surface 9 with the intersection of this stage portion 7 and cutterhead end face 6, intilted one-level stage portion 71 ' and the intersection of outward-dipping one-level stage portion 71 form top sword 10, the center of drillstock is water hole or pore, with the outward-dipping chip area 12. in bradawl head 2 centers
According to said structure, owing on the cutter head 3 of bradawl head 2, be formed with stage portion 7, this stage portion 7 is formed with one or more levels step 71 from the mode that 10 beginnings of cutter head 3 top swords reduce gradually to the both sides height ... 7N, the outer peripheral edges of every grade of step have an angle with respect to the outer peripheral edges of composite drill bit, described cutting face 5 forms main cutting edge 8 with the branch line of this stage portion 7 and cutterhead end face 6, therefore compare with cutter head in the past and increased the side 13 that erects between step, enlarged the area of dissipation appearance of step simultaneously cutting edge has been resolved into different little cutting edges, when cutting, destroyed thing the integration power that is cut thing by each the little cutting edge after decomposing to being cut, integration power has unity, simultaneity, drag maximum when therefore cutting, promptly have the sharp of good heat-radiation effect maintenance cutting edge and be cut after thing is decomposed cutting by little cutting edge, again working angles is decomposed thereby laborsaving saving time.
As described in Figure 2, the composite drill bit of second embodiment of the present invention, in the structure of first embodiment, stage portion 7 is on the end face 6 of cutter head 3, in the present embodiment, stage portion 14 is formed with first step portion 141 laterally on the cutting face of cutting direction, second step portion 142, the 3rd stage portion 143, extend to direction of feed in the cutting face of stage portion makes cutting edge also form first cutting edge, 81, the second cutting edges, 82, the three cutting edges 83, the inboard of cutter head 3 also resolve into first cutting edge, 81 ' the second cutting edges 82 ', side edge also increases to first side edge, 171, the second side edges, 172, the three side edges 173 on the cutting face, back.Inboard first side edge 171 ', second side edge 172 ', the 3rd side edge 173 ' and first front cutting edge, 41, the second front cutting edges 42 and the 3rd front cutting edge 43 etc.
By so constituting, cutting edge resolves into several little cutting edges increases the integration power that several little side edges, front cutting edge, secondary cutting face destroy the cutting tip that is cut thing, and the area of dissipation that has increased the cutting face again prolongs cutter life and keep high strength always in process.
As described in Figure 3, the composite drill bit of the 3rd embodiment of the present invention comprises bradawl head 2 and cutter head 3, at least two bradawl heads 2 are set on the composite drill bit integratedly, one cutter head 3 towards cutting direction is set on each bradawl head 2, the face towards cutting direction of each cutter head 3 forms cutting face 5, the rear side in cutting face 5 has recess sword 15 for their angle of cutting face 6, back is a cutting edge 8 on the cutting edge 8 in cutting face 5, amplify gradually to extend to form to after-opening to be groove 16 on cutting face 6, back.
According to said structure, owing to be formed with recess sword 15 on the cutter head of bradawl head 2, this recess sword 15 extends back to amplify gradually from cutting edge 8 upper sheds and in cutting face 6, back and forms groove 16.
By so constituting, the area of dissipation that cutting edge resolves into integration power that several little cutting edges and several little recess swords destroy the cutting tip that is cut thing and increased again cutting edge and cutting face, back prolongs the application life of cutter and keep high strength always in process.
As shown in Figure 4, the composite drill bit of the 4th embodiment of the present invention comprises bradawl head 2 and cutter head 3, at least two bradawl heads 2 are set on the composite drill bit 1 integratedly, the one semicircle sword head 3 towards cutting direction is set on each bradawl head 2, recess 15 is set on the cutting edge 8 and is and open gradually the groove 16. that amplifies in cutting face 6, back
According to said structure, groove 16 also can change into being on cutting face 5 opens the distribution of amplifying gradually, in conjunction with the setting of first and second embodiment semicircular in shape on the cutting face.
Decompose the intensity that the cutting edge be several little cutting edges or increase the heat radiation platform improves the sword head and increase the service life by so constituting cutting edge.
As described in Figure 5, the composite drill bit of the 5th embodiment of the present invention is that the composite drill bit of the present embodiment on the basis of first, second and third embodiment comprises bradawl head 2 and cutter head 3, at least two bradawl heads 2 are set on the composite drill bit 1 integratedly, one cutter head 3 towards cutting direction is set on each bradawl head 2, extend and be the groove 16 that opening amplifies gradually in cutting face 6 backward at the recess sword 15 of back on the cutting face 6, cutting edge 7 is stepped on cutting direction and 5 extend downwards and make cutting face 5 also stepped along the cutting face.
By so constituting, about cutting edge resolves into several little cutting edges and is, the integration power of decomposing the cutting tip that makes cutting object repeatedly of front and back and recess sword 15, reach after being decomposed repeatedly or near minimum value, thereby the cutting of composite drill bit is more laborsaving more durable.
Though more than be that example is illustrated with composite drill bit with two little drill bits, cutter of the present invention also can have a plurality of little drill bits, can adopt on each cutter head as the structure of the respective embodiments described above and the combination of other arbitrary forms.
Above-described preferred implementation is illustrative and not restrictive, the present invention can also otherwise implement and specialize under the situation that does not break away from purport of the present invention and essential characteristic, scope of the present invention is limited by claim, and all distortion in the claim limited range all fall within the scope of the present invention.
Claims (9)
1. composite drill bit, comprise cutterhead, handle of a knife, be provided with a plurality of little drill bits on the handle of a knife integratedly, welding one cutter head on cutting direction of each little drill bit, the face towards cutting direction of cutter head is the cutting face, and the top cutting edge of cutter head is a cutting edge on the cutting face, and the bottom in cutting face is a direction of feed to the direction that cutting edge extends.The rear face of the cutting edge on the direction of feed is the cutting face, back, the outside in cutting face is that front cutting edge extends rearward to be secondary cutting face, it is characterized in that on the little drill bit of composite drill bit that cutting edge towards the cutter head of the welded top of cutting direction is projection in the cutting face stepped amplification extends to cutting edge, the stepped ladder sword of cutting edge is distributed in forms one-level heat radiation platform at least on the cutting face, back, cutting edge is broken down into some little cutting edges and increases some little side edges.
2. between the stepped cutting edge that composite drill bit as claimed in claim 1 is characterized in that being decomposed on the cutter head of welding of little drill bit, at least one little side edge is arranged, extend in downwards and form the just little secondary cutting face of one-level heat radiation platform at least on the cutting face.
3. composite drill bit, comprise cutterhead, handle of a knife, be provided with a plurality of little drill bits on the handle of a knife integratedly, welding one cutter head on cutting direction of each little drill bit, the face towards cutting direction of cutter head is the cutting face, and the top cutting edge of cutter head is a cutting edge on the cutting face, and the bottom in cutting face is a direction of feed to the direction that cutting edge extends.The rear face of the cutting edge on the direction of feed is the cutting face, back, the outside in cutting face is that front cutting edge extends rearward to be secondary cutting face, the cutting edge that it is characterized in that the cutter head that welds on the little drill bit of composite drill bit, stepped being distributed on the cutting face that is projection at cutting edge on the direction of feed, and at the diminishing ladder that extends back that on the back cutting face of direction of feed, distributes, between the little cutting edge that is decomposed relatively the sword holded up of cutting edge be to have a little front cutting edge at least and the stairstepping that extends on the cutting face, back becomes positioning table, cutting edge is broken down into the some little cutting edges and the some little front cutting edge of increase.
4. between the little cutting edge that composite drill bit as claimed in claim 1 is characterized in that being decomposed by the ladder sword on the cutter head of welding of little drill bit at least one front cutting edge is arranged, front cutting edge extends back on the cutting face, back and forms at least one positioning table and that is to say at least one secondary cutting face.
5. composite drill bit, comprise cutterhead, handle of a knife, be provided with a plurality of little drill bits on the handle of a knife integratedly, welding one cutter head on cutting direction of each little drill bit, the face towards cutting direction of cutter head is the cutting face, and the top cutting edge of cutter head is a cutting edge on the cutting face, and the bottom in cutting face is a direction of feed to the direction that cutting edge extends.The rear face of the cutting edge on the direction of feed is the cutting face, back, the outside in cutting face is that front cutting edge extends rearward to be secondary cutting face, the cutting edge of cutter head that it is characterized in that the welding of little drill bit is having at least one recess sword to be distributed on the cutting edge in cutting face on the direction of feed, be opening and amplify shape gradually and be distributed on the cutting face, back and form groove.Cutting edge is broken down into some little cutting edges and some little recess swords.
6. composite drill bit, comprise cutterhead, handle of a knife, be provided with a plurality of little drill bits on the handle of a knife integratedly, welding one cutter head on cutting direction of each little drill bit, the face towards cutting direction of cutter head is the cutting face, and the top cutting edge of cutter head is a cutting edge on the cutting face, and the bottom in cutting face is a direction of feed to the direction that cutting edge extends.The rear face of the cutting edge on the direction of feed is the cutting face, back, the outside in cutting face is that front cutting edge extends rearward to be secondary cutting face, the cutting edge of cutter head that it is characterized in that the welding of little drill bit, there is being at least one recess sword to be distributed on the cutting edge in cutting face, back on the cutting direction, is being opening and amplifies shape gradually and be distributed in and form groove on the cutting face.Cutting edge is broken down into some little cutting edges and some little recess swords.
7. it is characterized in that as the described composite drill bit of claim 1-6 the cutter head that welds on the little drill bit of composite drill bit is cutting edge and is resolved at least two little cutting edges by the ladder sword on cutting face or cutting face, back, at least one little front cutting edge or side edge that at least one is little are arranged between two little cutting edges; Cutting edge is in the cutting face or the recess sword is arranged on the cutting face in the back and cutting face or cutting face are opening and amplify shape gradually and extend that four kinds of different cutting ways being distributed as groove combine arbitrarily backward.
8. it is characterized in that as the described composite drill bit of claim 1-7 the cutter head that welds on the little drill bit of composite drill bit is an arbitrary shape.
9. be that the cutting edge of the arbitrary shape on the cutter head of the arbitrary shape that welds on the little drill bit of handle of a knife has increased ladder sword or four kinds of different cutting ways of recess sword of being distributed on cutting face or the cutting face, back and makes up arbitrarily as the described compound tool bit of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010181539 CN101906937A (en) | 2010-05-25 | 2010-05-25 | Compound drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010181539 CN101906937A (en) | 2010-05-25 | 2010-05-25 | Compound drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101906937A true CN101906937A (en) | 2010-12-08 |
Family
ID=43262504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010181539 Pending CN101906937A (en) | 2010-05-25 | 2010-05-25 | Compound drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101906937A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102126039A (en) * | 2011-01-22 | 2011-07-20 | 李仕清 | Spiral cutter for composite positioned cutting |
| WO2012094795A1 (en) * | 2011-01-10 | 2012-07-19 | Li Shiqing | Composite gear shaping cutter, composite gear shaving cutter, or composite plane cutter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB593622A (en) * | 1944-11-08 | 1947-10-22 | Gullick Ltd | Improvements in or relating to drill bits, cutting tools and the like |
| US6200077B1 (en) * | 1998-08-13 | 2001-03-13 | Sandvik Ab | Twist drill having multiple flank surfaces for each cutting edge |
| US6447218B1 (en) * | 1998-02-03 | 2002-09-10 | Sandvik Aktiebolag | Cutting insert with cooling channel |
| JP2006326720A (en) * | 2005-05-24 | 2006-12-07 | Kyocera Corp | Throwaway inserts and cutting tools |
| US20090110501A1 (en) * | 2007-10-30 | 2009-04-30 | Iscar, Ltd. | Cutting tool |
| CN101513680A (en) * | 2004-09-29 | 2009-08-26 | 京瓷株式会社 | Throw-away insert and rotary cutting tool having the same |
-
2010
- 2010-05-25 CN CN 201010181539 patent/CN101906937A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB593622A (en) * | 1944-11-08 | 1947-10-22 | Gullick Ltd | Improvements in or relating to drill bits, cutting tools and the like |
| US6447218B1 (en) * | 1998-02-03 | 2002-09-10 | Sandvik Aktiebolag | Cutting insert with cooling channel |
| US6200077B1 (en) * | 1998-08-13 | 2001-03-13 | Sandvik Ab | Twist drill having multiple flank surfaces for each cutting edge |
| CN101513680A (en) * | 2004-09-29 | 2009-08-26 | 京瓷株式会社 | Throw-away insert and rotary cutting tool having the same |
| JP2006326720A (en) * | 2005-05-24 | 2006-12-07 | Kyocera Corp | Throwaway inserts and cutting tools |
| US20090110501A1 (en) * | 2007-10-30 | 2009-04-30 | Iscar, Ltd. | Cutting tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012094795A1 (en) * | 2011-01-10 | 2012-07-19 | Li Shiqing | Composite gear shaping cutter, composite gear shaving cutter, or composite plane cutter |
| CN102126039A (en) * | 2011-01-22 | 2011-07-20 | 李仕清 | Spiral cutter for composite positioned cutting |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101208 |