CN107262786A - A kind of band stops section step drill and its manufacture method - Google Patents
A kind of band stops section step drill and its manufacture method Download PDFInfo
- Publication number
- CN107262786A CN107262786A CN201710678224.1A CN201710678224A CN107262786A CN 107262786 A CN107262786 A CN 107262786A CN 201710678224 A CN201710678224 A CN 201710678224A CN 107262786 A CN107262786 A CN 107262786A
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- China
- Prior art keywords
- drill
- spacing preiection
- drill bit
- section
- shank
- 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.)
- Pending
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 241001074085 Scophthalmus aquosus Species 0.000 claims abstract description 13
- 230000001427 coherent effect Effects 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims abstract description 4
- 238000000227 grinding Methods 0.000 claims description 12
- 238000010791 quenching Methods 0.000 claims description 6
- 230000000171 quenching effect Effects 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000007514 turning Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 3
- 238000003672 processing method Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal 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
- B23B51/009—Stepped drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
A kind of band stops section step drill and its manufacture method, belongs to machining apparatus technical field, includes the drill bit and shank of step drill, also by the brill body being arranged between drill bit and shank, stopping section, allows cutter groove and spacing preiection to constitute；Body is bored to be made up of in incremental step stacking several diameters from top to bottom, each connected between step and step by chamfered transition, last layer of step for boring body is integrally formed formula cylindrical structure with stopping section, cutter groove is allowed to be arranged between stopping section and spacing preiection, drill bit, brill body, stopping save, allow cutter groove and spacing preiection surface to be provided with helical flute, helical flute originates in drill bit, ends at spacing preiection outer surface, is set in coherent formula.The present invention is rational in infrastructure, and processing method is clear, improves the precision in hole wall and aperture, reduces difficulty of processing, substantially increases process velocity and efficiency, because the circular hole of machining accuracy height, therefore machine-shaping can be directly used for the installation of subsidiary accessory.
Description
Technical field
The invention belongs to machining apparatus technical field, it is related to a kind of machining drilling tool and its manufacture method, specifically
Say it is to be related to a kind of band to stop section step drill and its manufacture method.
Background technology
Step drill also known as step drill or high speed steel fully ground step drill, are mainly used in the sheet metal Drilling operation within 3mm, and drill bit can be with
Used instead of branched drill bit, the hole of processing different-diameter, and can realize that macropore is disposably machined as needed, it is not necessary to more
Bit change and beat positioning hole etc..Entirety step drill is using the manufacture of CBN complete wears at present, and material is mainly high-speed steel, hard alloy etc.,
Requirement on machining accuracy is high, and surface coated treatment can be carried out according to the difference of processing situation, with tool life, enhancing
Cutter durability.Product is processed available for automobile, Aero-Space, the industry such as panel beating, electric mounting maintenance, while product side
Portable belt can meet work high above the ground and coordinate the instruments such as electric hand drill to use.According to the flute profile of product, straight trough, helicla flute, circle can be divided
The class of arc groove three；Single-blade, twolip, three swords, four swords and multiple-cutting-edge step drill can be divided into according to product sword number.
But current step drill is essentially all to be made up of drill bit, brill body and shank, bores the stepped structure of body, generally exists
Helicla flute is set with brill；Stop however, this drill bit for boring the stepped structure of body entire body does not have drill bit in drilling
Finishing function, hole wall after processing and aperture roughness it is high, it is necessary to carried out with other specific purpose tool device to hole further finishing and
Deburring；In addition, conventional step drill undue force in use easily causes the damage of work piece, this skill to operating personnel
Art level proposes higher requirement, is unfavorable for the expansion of production, have impact on production efficiency.
The content of the invention
The present invention is poor for traditional step drill borehole accuracy and finish, easily occurs the damage of workpiece in boring procedure
Bad, operation requires high, the deficiency such as influence production efficiency, proposes that a kind of band stops section step drill and its manufacture method, can be significantly
Stability of the degree increase step drill in processing workpiece, can improve the precision in hole wall and aperture, it is possible to decrease difficulty of processing, drill
Processing efficiency also can obtain effective raising.
Technical scheme：A kind of band stops section step drill, includes the drill bit and shank of step drill；Its feature exists
In：The step drill also by be arranged between drill bit and shank brill body, stop section, allow cutter groove and spacing preiection to constitute；It is described
Bore body to be made up of in incremental step stacking several diameters from top to bottom, connected between each step and step by chamfered transition
Connect, last layer of step for boring body is integrally formed formula cylindrical structure with stopping section, described to allow cutter groove to be arranged on stopping section
Between spacing preiection, the diameter of the spacing preiection is more than the diameter for stopping section, the drill bit, bores body, stops section, allows cutter groove
Helical flute is provided with spacing preiection surface, the helical flute originates in drill bit, ends at spacing preiection outer surface,
Set in coherent formula.
The helical flute is double spiral groove, and helical flute is mutually 180 ° of settings, the lead angle of helical flute
For 20 °.
The brill is as 4 laminar steps, and the diameter of 4 layers of step from top to bottom is respectively φ 6, φ 8, φ 10, φ 12, often
The height all same of one layer of step.
Opening angle at the top of the drill bit is 118 °.
A kind of band stops the manufacture method of section step drill, it is characterised in that including following procedure of processing：
(1) blanking：17 × 60mm of φ bar；
(2) it is segmented turning：
(2-1) car shank：φ6.7mm；
(2-2) wagon drill head：Clamp φ 6.7mm shanks, bit part length be 6.5mm, diameter phi 4.3mm, diametric(al)
Stay 0.3mm allowance；
Four layers of step of (2-3) car：Clamp φ 6.7mm shanks, respectively φ 6.3mm, φ 8.3mm, φ 10.3mm, φ
12.3mm, the length of every layer of step is 4mm；
(2-4) car is by cutter groove and spacing preiection：Cutter groove part car is allowed to φ 13mm, spacing preiection car to φ 16.3mm,；
(3) it is heat-treated：Overall vacuum quenching is carried out, the hardness that quenching is obtained is HRC 62-64；
(5) peripheral milling：Shank is milled to size φ 6.35mm；
(6) helicla flute is ground：Using grinding machine, bit part is ground into the helicla flute that two lead angles are 20 °, two groove locations
Central Symmetry；
(7) relief grinding：Using grinding machine, by bit part relief grinding to finished size, respectively φ 4mm, φ 6mm, φ 8mm, φ
10mm、φ12mm、φ14mm；Stop section part φ 14mm back taper 0.1mm, φ 16mm；
(8) triangle is pressed：Using cylindrical grinder, shank is symmetrically pressed three it is flat, every flat to push 0.2mm；
(9) drill bit opening：The drill bit portion of withstanding on is opened to 118 ° of opening angle using tapping machine；
(10) storage is examined.
Beneficial effects of the present invention are：A kind of band proposed by the present invention stops section step drill, and rational in infrastructure, processing method is clear
Clear, whole drill bit is saved by drill bit, brill body, stopping, allowing cutter groove, spacing preiection and shank to collectively constitute, round tube during use
Punched on material, increased considerably stability of the step drill in processing workpiece, chamfering process completion can be got in rounded face
Smooth circular hole, and do not interfere processing beyond tube portions, improve the precision in hole wall and aperture, reduce difficult processing
Degree, substantially increases process velocity and efficiency, because machining accuracy is high, therefore the circular hole of machine-shaping can be directly used for incidentally matching somebody with somebody
The installation of part.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention.
Fig. 2 is main structure diagram of the present invention.
Fig. 3 is right side structure schematic diagram of the present invention.
Fig. 4 is left side structure schematic diagram of the present invention.
In figure：Top 1, drill bit 2 are bored, body 3 is bored, stops section 4, chip area 5, allows cutter groove 6, spacing preiection 7, shank 8.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As Figure 1-4, a kind of band stops section step drill, includes the drill bit 2 and shank 8 of step drill；Step drill is also by setting
The brill body 3 between drill bit 2 and shank 8 is put, stops section 4, allow cutter groove 6 and spacing preiection 7 to constitute；If bore body 3 from top to bottom by
Dry diameter is constituted in incremental step stacking, is connected between each step and step by chamfered transition, is bored last of body 3
Layer step is integrally formed formula cylindrical structure with stopping section 4, allows cutter groove 6 to be arranged between stopping section 4 and spacing preiection 7, spacing
Raised 7 diameter saves 4, allows cutter groove 6 and the surface of spacing preiection 7 to be provided with more than the diameter for stopping section 4, drill bit 2, brill body 3, stopping
Helical flute 5, helical flute 5 originates in drill bit 2, ends at the outer surface of spacing preiection 7, is set in coherent formula.
As Figure 1-4, helical flute 5 is double spiral groove, and helical flute 5 is mutually 180 ° of settings, helical flute 5
Lead angle be 20 °, brills body 3 be 4 laminar steps, the diameter of 4 layers of step from top to bottom is respectively φ 6, φ 8, φ 10, φ
12, the height all same of each layer of step, the opening angle at the top of drill bit 2 is 118 °.
As shown in figure 1, a kind of band stops the manufacture method of section step drill, including following procedure of processing：
(1) blanking：17 × 60mm of φ bar；
(2) it is segmented turning：
(2-1) car shank：φ6.7mm；
(2-2) wagon drill head：Clamp φ 6.7mm shanks, bit part length be 6.5mm, diameter phi 4.3mm, diametric(al)
Stay 0.3mm allowance；
Four layers of step of (2-3) car：Clamp φ 6.7mm shanks, respectively φ 6.3mm, φ 8.3mm, φ 10.3mm, φ
12.3mm, the length of every layer of step is 4mm；
(2-4) car is by cutter groove and spacing preiection：Cutter groove part car is allowed to φ 13mm, spacing preiection car to φ 16.3mm,；
(3) it is heat-treated：Overall vacuum quenching is carried out, the hardness that quenching is obtained is HRC 62-64；
(5) peripheral milling：Shank is milled to size φ 6.35mm；
(6) helicla flute is ground：Using grinding machine, bit part is ground into the helicla flute that two lead angles are 20 °, two groove locations
Central Symmetry；
(7) relief grinding：Using grinding machine, by bit part relief grinding to finished size, respectively φ 4mm, φ 6mm, φ 8mm, φ
10mm、φ12mm、φ14mm；Stop section part φ 14mm back taper 0.1mm, φ 16mm；
(8) triangle is pressed：Using cylindrical grinder, shank is symmetrically pressed three it is flat, every flat to push 0.2mm；
(9) drill bit opening：The drill bit portion of withstanding on is opened to 118 ° of opening angle using tapping machine；
(10) storage is examined.
A kind of band of the present invention stops section step drill, and rational in infrastructure, processing method is clear, whole drill bit by drill bit, bore body,
Stop section, allow cutter groove, spacing preiection and shank to collectively constitute, punched during use on circular pipe, increased considerably rank
Ladder be drilled in processing workpiece in stability, can be got in rounded face chamfering process completion smooth circular hole, and do not interfere plus
Tube portions beyond work, improve the precision in hole wall and aperture, reduce difficulty of processing, substantially increase process velocity and effect
Rate, because the circular hole of machining accuracy height, therefore machine-shaping can be directly used for the installation of subsidiary accessory.
Claims (5)
1. a kind of band stops section step drill, include the drill bit (2) and shank (8) of step drill；It is characterized in that：The step drill is also
By the brill body (3) being arranged between drill bit (2) and shank (8), stopping section (4), cutter groove (6) and spacing preiection (7) is allowed to constitute；Institute
It is in from top to bottom that incremental step stacking is constituted by several diameters to state and bore body (3), and chamfering is passed through between each step and step
Transition is connected, and last layer of step for boring body (3) is integrally formed formula cylindrical structure, the cutter groove that allows with stopping section (4)
(6) it is arranged between stopping section (4) and spacing preiection (7), the diameter of the spacing preiection (7) is more than the diameter for stopping section (4),
The drill bit (2), brill body (3), stopping save (4), allow cutter groove (6) and spacing preiection (7) surface to be provided with helical flute (5),
The helical flute (5) originates in drill bit (2), ends at spacing preiection (7) outer surface, is set in coherent formula.
2. a kind of band according to claim 1 stops section step drill, it is characterised in that：The helical flute (5) is double
Helicla flute, helical flute (5) is mutually 180 ° of settings, and the lead angle of helical flute (5) is 20 °.
3. a kind of band according to claim 1 stops section step drill, it is characterised in that：The brill body (3) is 4 laminar platforms
Rank, the diameter of 4 layers of step from top to bottom is respectively φ 6, φ 8, φ 10, φ 12, the height all same of each layer of step.
4. a kind of band according to claim 1 stops section step drill, it is characterised in that：Opening at the top of the drill bit (2)
Angle is 118 °.
5. a kind of band as claimed in claim 1 stops the manufacture method of section step drill, it is characterised in that including following processing step
Suddenly：
(1) blanking：17 × 60mm of φ bar；
(2) it is segmented turning：
(2-1) car shank：φ6.7mm；
(2-2) wagon drill head：Clamp φ 6.7mm shanks, bit part length be 6.5mm, diameter phi 4.3mm, diametric(al) is stayed
0.3mm allowance；
Four layers of step of (2-3) car：Clamping φ 6.7mm shanks, respectively φ 6.3mm, φ 8.3mm, φ 10.3mm, φ 12.3mm,
The length of every layer of step is 4mm；
(2-4) car is by cutter groove and spacing preiection：Cutter groove part car is allowed to φ 13mm, spacing preiection car to φ 16.3mm,；
(3) it is heat-treated：Overall vacuum quenching is carried out, the hardness that quenching is obtained is HRC 62-64；
(5) peripheral milling：Shank is milled to size φ 6.35mm；
(6) helicla flute is ground：Using grinding machine, bit part is ground into the helicla flute that two lead angles are 20 °, two groove location centers
Symmetrically；
(7) relief grinding：Using grinding machine, by bit part relief grinding to finished size, respectively φ 4mm, φ 6mm, φ 8mm, φ 10mm,
φ12mm、φ14mm；Stop section part φ 14mm back taper 0.1mm, φ 16mm；
(8) triangle is pressed：Using cylindrical grinder, shank is symmetrically pressed three it is flat, every flat to push 0.2mm；
(9) drill bit opening：The drill bit portion of withstanding on is opened to 118 ° of opening angle using tapping machine；
(10) storage is examined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710678224.1A CN107262786A (en) | 2017-08-10 | 2017-08-10 | A kind of band stops section step drill and its manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710678224.1A CN107262786A (en) | 2017-08-10 | 2017-08-10 | A kind of band stops section step drill and its manufacture method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107262786A true CN107262786A (en) | 2017-10-20 |
Family
ID=60079802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710678224.1A Pending CN107262786A (en) | 2017-08-10 | 2017-08-10 | A kind of band stops section step drill and its manufacture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107262786A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110461515A (en) * | 2018-01-22 | 2019-11-15 | Osg株式会社 | The manufacturing method of step drill and step drill |
| CN114799288A (en) * | 2022-05-19 | 2022-07-29 | 广东鼎泰高科技术股份有限公司 | Drilling tool with sectional edges |
| US20220339714A1 (en) * | 2019-12-20 | 2022-10-27 | Guehring Kg | Twist drill bit having a cutting tip with a stepped structure |
| EP4360784A1 (en) * | 2022-08-10 | 2024-05-01 | Black & Decker, Inc. | Step drill bit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008000368U1 (en) * | 2008-01-09 | 2008-03-13 | RUKO GmbH Präzisionswerkzeuge | Multi-stage drill with drill stop |
| CN101288912A (en) * | 2008-06-12 | 2008-10-22 | 岳八金 | Step drill with changeable head |
| CN102350657A (en) * | 2011-09-29 | 2012-02-15 | 长城汽车股份有限公司 | Method for coping center drill with protecting cone |
| CN106077765A (en) * | 2016-06-17 | 2016-11-09 | 徐州金港起重机制造有限公司 | A kind of high-speed steel step drill |
| CN106514137A (en) * | 2016-09-26 | 2017-03-22 | 安徽远丰回转支承有限责任公司 | Machining process of no-tooth strip blockage rotating support structural part and support |
| CN106583800A (en) * | 2015-10-20 | 2017-04-26 | 扬州市实力五金工具工贸有限公司 | Stepped drill with masses drill opening and manufacturing method of stepped drill |
| CN207239234U (en) * | 2017-08-10 | 2018-04-17 | 扬州市实力五金工具工贸有限公司 | A kind of band stops section step drill |
-
2017
- 2017-08-10 CN CN201710678224.1A patent/CN107262786A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008000368U1 (en) * | 2008-01-09 | 2008-03-13 | RUKO GmbH Präzisionswerkzeuge | Multi-stage drill with drill stop |
| CN101288912A (en) * | 2008-06-12 | 2008-10-22 | 岳八金 | Step drill with changeable head |
| CN102350657A (en) * | 2011-09-29 | 2012-02-15 | 长城汽车股份有限公司 | Method for coping center drill with protecting cone |
| CN106583800A (en) * | 2015-10-20 | 2017-04-26 | 扬州市实力五金工具工贸有限公司 | Stepped drill with masses drill opening and manufacturing method of stepped drill |
| CN106077765A (en) * | 2016-06-17 | 2016-11-09 | 徐州金港起重机制造有限公司 | A kind of high-speed steel step drill |
| CN106514137A (en) * | 2016-09-26 | 2017-03-22 | 安徽远丰回转支承有限责任公司 | Machining process of no-tooth strip blockage rotating support structural part and support |
| CN207239234U (en) * | 2017-08-10 | 2018-04-17 | 扬州市实力五金工具工贸有限公司 | A kind of band stops section step drill |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110461515A (en) * | 2018-01-22 | 2019-11-15 | Osg株式会社 | The manufacturing method of step drill and step drill |
| US11103933B2 (en) | 2018-01-22 | 2021-08-31 | Osg Corporation | Step drill and manufacturing method for step drill |
| US20220339714A1 (en) * | 2019-12-20 | 2022-10-27 | Guehring Kg | Twist drill bit having a cutting tip with a stepped structure |
| CN114799288A (en) * | 2022-05-19 | 2022-07-29 | 广东鼎泰高科技术股份有限公司 | Drilling tool with sectional edges |
| CN114799288B (en) * | 2022-05-19 | 2024-02-06 | 广东鼎泰高科技术股份有限公司 | Sectional edge drilling tool |
| EP4360784A1 (en) * | 2022-08-10 | 2024-05-01 | Black & Decker, Inc. | Step drill bit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171020 |
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| RJ01 | Rejection of invention patent application after publication |