CN112605440B - Novel cooling back-pull type tooth crown cutter head - Google Patents
Novel cooling back-pull type tooth crown cutter head Download PDFInfo
- Publication number
- CN112605440B CN112605440B CN202110023490.7A CN202110023490A CN112605440B CN 112605440 B CN112605440 B CN 112605440B CN 202110023490 A CN202110023490 A CN 202110023490A CN 112605440 B CN112605440 B CN 112605440B
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- tooth crown
- tool bit
- cavity
- tooth
- cutter
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- 210000000332 tooth crown Anatomy 0.000 title claims abstract description 82
- 238000001816 cooling Methods 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims description 43
- 238000005553 drilling Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 208000002925 dental caries Diseases 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000007704 transition Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000110 cooling liquid Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 11
- 241001391944 Commicarpus scandens Species 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012761 high-performance material Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a novel cooling back-pull type tooth crown tool bit, which ensures that the tooth crown tool bit is locked through a back-pull type structure and a drill rod, ensures that the locking is stable and reliable, and ensures that cooling liquid directly cools a cutting edge of the tooth crown tool bit, and has good cooling effect. The periphery of the working part of the drill rod is provided with a spiral chip groove and a cutter back, a tooth crown cutter head positioning cavity is formed by the concave shape of the center position of the front end of the working part, the tooth crown cutter head is embedded in the tooth crown cutter head positioning cavity, the tooth crown cutter head comprises a locking threaded hole with the concave rear end, the locking threaded hole of the tooth crown cutter head is connected with the front end thread of a tensioning screw, the axial inner end of the tooth crown cutter head positioning cavity of the working part is provided with a concave center threaded hole, the rear end thread of the tensioning screw is connected with the concave center threaded hole, the rotation directions of the front end thread and the rear end thread of the tensioning screw are opposite, and the axial center position of the drill rod is provided with a main cooling hole which is communicated with the main cooling hole.
Description
Technical Field
The invention relates to the technical field of cutting tool structures, in particular to a novel cooling back-pull type crown tool bit.
Background
With the rapid development of industries such as engineering machinery, heat exchangers, wind power and the like, large-diameter hole processing is more and more, the whole hard alloy drill bit is high in cost and processing cost, the crown bit is made of hard alloy or other high-performance materials, and the drill rod is made of a combined drill bit made of alloy steel materials, so that the combined drill bit is suitable for large-diameter hole processing and has the advantages of low use cost and large processing range.
The head of the existing crown bit and the drill rod are in various combination modes, the cooling mode is that the cooling holes spray to the inclined planes at two sides, the cutting edge of the crown bit cannot be cooled directly, and the cooling effect is poor.
Disclosure of Invention
Aiming at the problems, the invention provides a novel cooling back-pull type crown cutter head, which ensures that the crown cutter head is locked through a back-pull structure and a drill rod, ensures that the locking is stable and reliable, and ensures that cooling liquid directly cools the cutting edge of the crown cutter head, and has good cooling effect.
Novel cooling back-pull type crown tool bit, its characterized in that: the drilling rod comprises a drilling rod and a tooth crown tool bit, wherein the drilling rod comprises a working part, a neck part and a handle part, a spiral chip groove and a tool back are arranged on the periphery of the working part of the drilling rod, a tooth crown tool bit positioning cavity is formed by inwards concave front end center positions of the working part, the tooth crown tool bit is embedded in the tooth crown tool bit positioning cavity, the tooth crown tool bit comprises a locking threaded hole with inwards concave rear end, the locking threaded hole of the tooth crown tool bit is connected with the front end threads of a tension screw, the axial inner ends of the tooth crown tool bit positioning cavity of the working part are provided with inwards concave center threaded holes, the rear end threads of the tension screw are connected with the inwards concave center threaded holes, the axial center positions of the drilling rod are provided with main cooling holes, the inwards concave center threaded holes are communicated with the main cooling holes, the periphery of the front end of the main cooling holes facing the working part is provided with at least two bypass pipelines, the positions of stop faces of the tooth crown tool bit positioning cavity are provided with two crown liquid outlets, the rear end faces of the tooth crown tool bit positioning cavity are provided with the two side-by-pass pipelines, the axial inner end faces of the tooth crown tool bit positioning cavity are provided with the two side liquid outlet holes, the axial inner end faces of the tooth crown tool bit positioning cavity are respectively, the tooth crown tool bit positioning cavity is provided with the liquid outlet holes, the axial end faces of the tooth crown tool bit positioning cavity are respectively, the tooth crown tool bit positioning cavity is provided with a liquid outlet cavity and the liquid outlet cavity is assembled in a position, the assembly structure, the tooth cavity is formed by the position of the tooth cavity, and the tooth cavity is assembled with a liquid outlet cavity, and a position groove is formed by the tooth cavity, and a front cavity, and a position structure, the obtuse angle locating surfaces on the two sides are respectively located at the stop positions of the profiling locating inner wall of the tooth crown cutter head locating cavity.
It is further characterized by:
Two bypass pipelines are arranged on the periphery of the front end of the main cooling hole, which faces the working part, and Y-shaped passage outlets are formed and are respectively communicated with the liquid outlet through branches;
The central lines formed by the obtuse angle positioning surfaces at two sides are overlapped with the central lines of the locking threaded holes, the angle of the obtuse angle positioning surfaces is 100-154 degrees, and the liquid outlet notch grooves are concavely arranged in the area of the obtuse angle positioning surfaces;
The front end screw thread of the tensioning screw is tightly screwed with the inner ring screw thread of the steel wire screw sleeve, so that the tooth crown tool bit can be repeatedly assembled and disassembled for many times, and the screw thread of the locking screw hole of the tooth crown tool bit is not easy to break and collapse;
the obtuse angle locating surfaces on two sides are of a clearance structure, and the obtuse angle locating surfaces on two sides are guided into the drill rod along the profiling locating inner wall during installation, so that the installation is simple and reliable, the precision is high, the clearance surface is arranged at the joint of the obtuse angle locating surfaces on each side, and each locating surface is in independent contact during installation and cannot be mutually influenced;
The tooth crown tool bit comprises a rear end plane, a cylindrical peripheral surface and a vertex angle, wherein after the rear end plane is ground in advance, the locking threaded hole is formed in the center of the rear end plane, the steel wire thread sleeve is fixedly inserted into the locking threaded hole, the vertex angle is ground, the cylindrical peripheral surface is ground by taking the vertex angle and the locking threaded hole as references, and then the cylindrical peripheral surface is ground to form obtuse angle positioning surfaces on two sides and liquid notch grooves on two sides, so that the center lines of the obtuse angle positioning surfaces on two sides are overlapped with the center line of the locking threaded hole; grinding cylindrical surface parts of the chip removal groove and the back to form edges, wherein the spiral angle of the chip removal groove is 0-35 degrees; and then grinding the rear cutter surface and the chip flute to form a main cutter and an inner cutter, wherein a transition cutter is formed between the main cutter and the inner cutter, the inner cutter is 1/4-1/2 of the main cutter, the arc radius R of the transition cutter is 0.1-3 mm, the two groups of inner cutters are combined to form a chisel edge, and the crown cutter comprises a rear end plane and a guide surface which is arranged on the periphery of the bottom of the positioning cavity.
After the invention is adopted, the locking threaded hole of the tooth crown bit is connected with at least one part of the front end threads of the tension screw, a certain front end thread screwing installation clearance is reserved during preassembly, then the tooth crown bit is positioned in the tooth crown bit positioning cavity, the rear end threads of the tension screw are connected with the concave central threaded hole, the inner hexagonal wrench penetrates through the main cooling hole and then screws the tension screw, so that the rear end threads of the tension screw are connected with the concave central threaded hole, the rear end surface of the tooth crown bit and the plane of the end stop surface of the tooth crown bit positioning cavity are tightly attached to complete tensioning and locking, the tooth crown bit is locked through a back-pull structure and a drill rod, so that locking is stable and reliable, in addition, two liquid outlets are formed in the position of the main cooling hole, which faces the end stop surface of the tooth crown bit positioning cavity, a liquid outlet notch groove is formed in the position, which corresponds to the position of the liquid outlet port, the inner wall of the tooth crown bit positioning cavity, a liquid outlet notch groove and a liquid outlet inner groove are formed in the position, and a liquid outlet channel are spliced in the position, so that the tooth crown cooling liquid is cooled directly, and the cooling blade is good in cooling effect.
Drawings
FIG. 1 is a schematic view (partially cut away) of the crown head and drill stem of the present invention separated;
FIG. 2 is a schematic front view of the crown head of the present invention;
FIG. 3 is a schematic view of the structure of section A-A of FIG. 2;
FIG. 4 is a schematic view of the B-B cross-section structure of FIG. 2;
FIG. 5 is a schematic top view of FIG. 2;
FIG. 6 is a left side view of the schematic diagram of FIG. 2;
The names corresponding to the serial numbers in the figures are as follows:
The drill rod 1, a working part 101, a neck part 102, a handle part 103, a spiral chip groove 104, a tool back 105, a tooth crown bit positioning cavity 106, a concave center threaded hole 107, a main cooling hole 108, a bypass pipeline 109, a liquid outlet 110, a liquid outlet inner groove 111, a branch 112, a tooth crown bit 2, a tensioning screw 3, a front end thread 31, a rear end thread 32, a liquid outlet notch groove 4, a rear end plane 5, an obtuse angle positioning surface 6, a locking threaded hole 7, a wire thread insert 8, a clearance surface 9, a cylindrical peripheral surface 10, a top angle 11, a chip groove 12, a back 13, an edge 14, a rear tool surface 15, a chip groove 16, a main blade 17, an inner blade 18, a transition blade 19, a chisel 20 and a guide surface 21.
Detailed Description
Novel cooling back-drawing type tooth crown cutter head is shown in fig. 1-6: the drill rod 1 comprises a drill rod 1 and a crown bit 2, wherein the drill rod 1 comprises a working part 101, a neck part 102 and a handle part 103, a spiral chip groove 104 and a tool back 105 are arranged on the periphery of the working part 101 of the drill rod 1, a crown bit positioning cavity 106 is formed by concave in the central position of the front end of the working part 101, the crown bit 2 is embedded in the crown bit positioning cavity 106, the crown bit 200 comprises a locking threaded hole 7 with concave rear end, the locking threaded hole 7 of the crown bit 2 is connected with a front end thread 31 of a tensioning screw 3, an inner concave central threaded hole 107 is formed in the axial inner end of the crown bit positioning cavity 106 of the working part 101, the rear end thread 32 of the tensioning screw 3 is connected with the inner concave central threaded hole 107, a main cooling hole 108 is formed in the axial central position of the drill rod 1, the inner concave central threaded hole 107 is communicated with the main cooling hole 108, at least two bypass pipelines 109 are arranged on the periphery of the front end of the main cooling hole 108 facing the working part 101, two liquid outlets 110 are arranged on the position of the main cooling hole 108 facing the end stop surface of the tooth crown bit positioning cavity 106, a liquid outlet notch groove 4 is arranged on the periphery of the tooth crown bit 2 corresponding to the liquid outlet 110, a liquid outlet inner groove 111 is arranged on the inner wall of the tooth crown bit positioning cavity 106 corresponding to the liquid outlet 110, the rear end plane 5 of the tooth crown bit 2 in the assembled state is closely arranged with the end stop surface plane of the tooth crown bit positioning cavity 106, the liquid outlet notch groove 4 and the liquid outlet inner groove 111 at the corresponding positions are spliced to form a liquid outlet channel, the tooth crown bit 2 and the working part 101 of the drill rod 1 are assembled in place to form an integral structure, the obtuse angle positioning surfaces 6 on two sides of the tooth crown bit 2 are symmetrical structures, the obtuse angle locating surfaces 6 on the two sides are respectively located at the stop positions of the profiling locating inner wall of the tooth crown bit locating cavity 106.
Two bypass pipelines 109 are arranged on the periphery of the front end of the main cooling hole 108, which faces the working part 101, and Y-shaped passage outlets are formed and are respectively communicated to a liquid outlet 110 through branches 112;
The central lines formed by the obtuse angle positioning surfaces 6 on the two sides are overlapped with the central lines of the locking threaded holes 7, the angle of the obtuse angle positioning surfaces 6 is 100-154 degrees, and the liquid outlet notch grooves 4 are concavely arranged in the area of the obtuse angle positioning surfaces 6;
The outer circumference of the steel wire thread insert 8 is sleeved in the inner thread of the locking threaded hole 7, and the front end thread 31 of the tensioning screw 3 is tightly and threadedly connected with the inner thread of the steel wire thread insert 8, so that the tooth crown cutter head 2 can be repeatedly assembled and disassembled for many times, and the thread of the locking threaded hole 7 of the tooth crown cutter head 2 is not easy to break and collapse;
the obtuse angle locating surfaces 6 on two sides are of a clearance structure, the obtuse angle locating surfaces 6 on two sides are guided into the drill rod 1 along the profiling locating inner wall during installation, the installation is simple and reliable, the precision is high, the clearance surface 9 is arranged at the joint of the obtuse angle locating surfaces 6 on each side, and each locating surface is in independent contact during installation and cannot be affected by each other;
The specific machining of the crown bit 2 is as follows: the tooth crown tool bit 2 comprises a rear end plane 5, a cylindrical peripheral surface 10 and a vertex angle 11, wherein after the rear end plane 5 is ground in advance, a locking threaded hole 7 is formed in the center position of the rear end plane 5, a steel wire threaded sleeve 8 is fixedly inserted into the locking threaded hole, the vertex angle 11 is ground, the cylindrical peripheral surface 10 is ground by taking the vertex angle 11 and the locking threaded hole 7 as references, and then the cylindrical peripheral surface 10 is ground to form obtuse angle positioning surfaces 6 on two sides and liquid notch grooves 4 on two sides, so that the center lines of the obtuse angle positioning surfaces 6 on two sides are overlapped with the center line of the locking threaded hole 7; then grinding cylindrical surface parts of the chip removal groove 12 and the back 13 to form an edge 14, wherein the helix angle alpha of the chip removal groove 12 is 0-35 degrees; the rear cutter face 15 and the chip flute 16 are ground to form a main cutter blade 17 and an inner cutter blade 18, a transition cutter blade 19 is formed between the main cutter blade 17 and the inner cutter blade 18, the size of the inner cutter blade 18 is 1/4-1/2 of that of the main cutter blade 17, the arc radius R of the transition cutter blade 19 is 0.1-3 mm, the two groups of inner cutter blades 18 are combined to form a chisel edge 20, and when the tooth crown cutter head 2 is concretely implemented, the outer periphery of the rear end plane 5 corresponding to the bottom of the positioning cavity is further provided with a guide surface 21, so that the rapid and convenient assembly is ensured.
The assembly process and the working principle are as follows: the locking threaded hole of the tooth crown tool bit is connected with at least one part of the front end threads of the tension screw, a certain front end thread screwing installation clearance is reserved during preassembly, then the tooth crown tool bit is positioned in a tooth crown tool bit positioning cavity, the rear end threads of the tension screw are connected with the concave central threaded hole, the tension screw is screwed after the inner hexagonal wrench penetrates through the main cooling hole, the rear end threads of the tension screw are connected with the concave central threaded hole, meanwhile, the rear end face of the tooth crown tool bit and the plane of the end stop face of the tooth crown tool bit positioning cavity are tightly attached, tensioning and locking are completed, the tooth crown tool bit is locked through a rear pull structure and a drill rod, so that locking is stable and reliable, in addition, two liquid outlets are formed in the position of the main cooling hole, which faces the end stop face of the tooth crown tool bit positioning cavity, a liquid notch groove is formed in the position of the tooth crown tool bit positioning cavity, a liquid outlet inner groove is formed in the position of the inner wall of the tooth crown tool bit positioning cavity, and a liquid outlet notch groove formed in the position corresponding to the position in the assembled state are spliced to form a liquid outlet channel, and the cooling liquid cooling effect is achieved, and the cutting edge of the tooth crown tool bit is cooled directly, and the cooling effect is good.
The obtuse angle locating surfaces on two sides are symmetrically designed, the tool bit and the tool bar are locked in an interference fit mode, the center of the tightening screw is pulled back, the locking force is super strong, the center locking thread of the tooth crown tool bit is designed by adopting a machine body threaded hole and an alloy steel threaded sleeve, the machine body thread can be repeatedly assembled and disassembled, the machine body thread is not easy to break and collapse, the joint contact area of the rear end plane of the tooth crown tool bit and a drill rod is large, the stability is high during drilling, the noise is low, the obtuse angle locating surfaces on two sides of the tooth crown tool bit are designed to avoid the air, and the self-guiding tool bit enters the drill rod during installation, so that the installation is simple and reliable, and the precision is high. The clearance surface is processed at the joint of the two positioning surfaces, and each positioning surface is in independent contact during installation, so that the two positioning surfaces cannot be mutually influenced.
The beneficial effects are as follows: the crown tool bit and the drill rod are in clearance-free fit, so that the rigidity is good; the positioning surface of the cutter head is simple and reliable, and the universality is strong; the back section area of the cutter head is large, the strength of the cutter head is high, and the cutter head can be suitable for processing under various working conditions; the cutter head blade part can be designed into various blade parts, and is suitable for processing different materials; the cutter heads are installed in a gapless fit way, and the service life of the cutter heads is long; the cooling hole is directly sprayed out from the cutter head and directly acts on the cutting edge, so that the cooling effect is good.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (3)
1. Novel cooling back-pull type crown tool bit, its characterized in that: the drilling rod comprises a drilling rod and a tooth crown tool bit, wherein the drilling rod comprises a working part, a neck part and a handle part, a spiral chip groove and a tool back are arranged on the periphery of the working part of the drilling rod, a tooth crown tool bit positioning cavity is formed by inwards concave front end center positions of the working part, the tooth crown tool bit is embedded in the tooth crown tool bit positioning cavity, the tooth crown tool bit comprises a locking threaded hole with inwards concave rear end, the locking threaded hole of the tooth crown tool bit is connected with the front end threads of a tension screw, the axial inner ends of the tooth crown tool bit positioning cavity of the working part are provided with inwards concave center threaded holes, the rear end threads of the tension screw are connected with the inwards concave center threaded holes, the axial center positions of the drilling rod are provided with main cooling holes, the inwards concave center threaded holes are communicated with the main cooling holes, the periphery of the front end of the main cooling holes facing the working part is provided with at least two bypass pipelines, the positions of stop faces of the tooth crown tool bit positioning cavity are provided with two crown liquid outlets, the rear end faces of the tooth crown tool bit positioning cavity are provided with the two side-by-pass pipelines, the axial inner end faces of the tooth crown tool bit positioning cavity are provided with the two side liquid outlet holes, the axial inner end faces of the tooth crown tool bit positioning cavity are respectively, the tooth crown tool bit positioning cavity is provided with the liquid outlet holes, the axial end faces of the tooth crown tool bit positioning cavity are respectively, the tooth crown tool bit positioning cavity is provided with a liquid outlet cavity and the liquid outlet cavity is assembled in a position, the assembly structure, the tooth cavity is formed by the position of the tooth cavity, and the tooth cavity is assembled with a liquid outlet cavity, and a position groove is formed by the tooth cavity, and a front cavity, and a position structure, the obtuse angle locating surfaces on the two sides are respectively located at the stop positions of the profiling locating inner wall of the tooth crown cutter head locating cavity;
The central lines formed by the obtuse angle positioning surfaces at two sides are overlapped with the central lines of the locking threaded holes, the angle of the obtuse angle positioning surfaces is 100-154 degrees, and the liquid outlet notch grooves are concavely arranged in the area of the obtuse angle positioning surfaces;
the front end thread of the tensioning screw is tightly screwed with the inner ring thread of the steel wire thread insert;
The tooth crown tool bit comprises a rear end plane, a cylindrical peripheral surface and a vertex angle, wherein after the rear end plane is ground in advance, the locking threaded hole is formed in the center of the rear end plane, the steel wire thread sleeve is fixedly inserted into the locking threaded hole, the vertex angle is ground, the cylindrical peripheral surface is ground by taking the vertex angle and the locking threaded hole as references, and then the cylindrical peripheral surface is ground to form obtuse angle positioning surfaces on two sides and liquid notch grooves on two sides, so that the center lines of the obtuse angle positioning surfaces on two sides are overlapped with the center line of the locking threaded hole; grinding cylindrical surface parts of the chip removal groove and the back to form edges, wherein the spiral angle of the chip removal groove is 0-35 degrees; and then grinding the rear cutter surface and the chip flute to form a main cutter and an inner cutter, wherein a transition cutter is formed between the main cutter and the inner cutter, the inner cutter is 1/4-1/2 of the main cutter, the arc radius R of the transition cutter is 0.1-3 mm, the two groups of inner cutters are combined to form a chisel edge, and the crown cutter comprises a rear end plane and a guide surface which is arranged on the periphery of the bottom of the positioning cavity.
2. A novel cooled pull-behind crown head as set forth in claim 1, wherein: two bypass pipelines are arranged on the periphery of the front end of the main cooling hole, which faces the working part, to form a Y-shaped passage outlet, and the Y-shaped passage outlet is communicated to the liquid outlet through branches respectively.
3. A novel cooled pull-behind crown head as set forth in claim 1, wherein: the obtuse angle locating surfaces on two sides are of a clearance structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110023490.7A CN112605440B (en) | 2021-01-08 | 2021-01-08 | Novel cooling back-pull type tooth crown cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110023490.7A CN112605440B (en) | 2021-01-08 | 2021-01-08 | Novel cooling back-pull type tooth crown cutter head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112605440A CN112605440A (en) | 2021-04-06 |
| CN112605440B true CN112605440B (en) | 2024-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110023490.7A Active CN112605440B (en) | 2021-01-08 | 2021-01-08 | Novel cooling back-pull type tooth crown cutter head |
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| Country | Link |
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| CN (1) | CN112605440B (en) |
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| JPH0529614U (en) * | 1991-09-27 | 1993-04-20 | セントラル硝子株式会社 | Flat diamond drill and seamer attached to the drill |
| JP2001158015A (en) * | 1999-12-02 | 2001-06-12 | Dgp:Kk | Non-core drill |
| CN102896479A (en) * | 2012-09-17 | 2013-01-30 | 苏茂均 | Method for manufacturing drill bit with cutting tool bit replaceable and product thereof |
| JP2014000630A (en) * | 2012-06-18 | 2014-01-09 | Mitsubishi Materials Corp | Coolant supply mechanism in cutting tool |
| CN104827093A (en) * | 2015-05-26 | 2015-08-12 | 苏州阿诺精密切削技术股份有限公司 | Y-shaped inner-cooling double-bolt locking tooth crown drill bit |
| CN204953983U (en) * | 2015-10-09 | 2016-01-13 | 苏州阿诺精密切削技术股份有限公司 | Two screw locking crown drill bits in V type constant head tank |
| CN111958022A (en) * | 2020-08-20 | 2020-11-20 | 沈盛涛 | Combined drill |
| CN112157300A (en) * | 2020-10-20 | 2021-01-01 | 苏州阿诺精密切削技术有限公司 | Asymmetric back-pull type tooth crown drill bit |
| CN215090877U (en) * | 2021-01-08 | 2021-12-10 | 苏州阿诺精密切削技术有限公司 | Novel draw formula crown tool bit after cooling |
-
2021
- 2021-01-08 CN CN202110023490.7A patent/CN112605440B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0529614U (en) * | 1991-09-27 | 1993-04-20 | セントラル硝子株式会社 | Flat diamond drill and seamer attached to the drill |
| JP2001158015A (en) * | 1999-12-02 | 2001-06-12 | Dgp:Kk | Non-core drill |
| JP2014000630A (en) * | 2012-06-18 | 2014-01-09 | Mitsubishi Materials Corp | Coolant supply mechanism in cutting tool |
| CN102896479A (en) * | 2012-09-17 | 2013-01-30 | 苏茂均 | Method for manufacturing drill bit with cutting tool bit replaceable and product thereof |
| CN104827093A (en) * | 2015-05-26 | 2015-08-12 | 苏州阿诺精密切削技术股份有限公司 | Y-shaped inner-cooling double-bolt locking tooth crown drill bit |
| CN204953983U (en) * | 2015-10-09 | 2016-01-13 | 苏州阿诺精密切削技术股份有限公司 | Two screw locking crown drill bits in V type constant head tank |
| CN111958022A (en) * | 2020-08-20 | 2020-11-20 | 沈盛涛 | Combined drill |
| CN112157300A (en) * | 2020-10-20 | 2021-01-01 | 苏州阿诺精密切削技术有限公司 | Asymmetric back-pull type tooth crown drill bit |
| CN215090877U (en) * | 2021-01-08 | 2021-12-10 | 苏州阿诺精密切削技术有限公司 | Novel draw formula crown tool bit after cooling |
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| CN112605440A (en) | 2021-04-06 |
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