CN207239234U - A kind of band stops section step drill - Google Patents
A kind of band stops section step drill Download PDFInfo
- Publication number
- CN207239234U CN207239234U CN201720993633.6U CN201720993633U CN207239234U CN 207239234 U CN207239234 U CN 207239234U CN 201720993633 U CN201720993633 U CN 201720993633U CN 207239234 U CN207239234 U CN 207239234U
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bit
- section
- limit protrusion
- cutter groove
- 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.)
- Active
Links
Landscapes
- Drilling Tools (AREA)
Abstract
A kind of band stops section step drill, belongs to machining apparatus technical field, includes the drill bit and shank of step drill, also by be arranged between drill bit and shank brill body, stop section, allow cutter groove and limit protrusion to form；Body is bored to be made 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 limit protrusion, drill bit, bore body, stop section, allow cutter groove and limit protrusion surface to be equipped with helical flute, helical flute originates in drill bit, ends at limit protrusion outer surface, is set in coherent formula.The utility model is rational in infrastructure, improves the precision in hole wall and aperture, reduces difficulty of processing, substantially increases process velocity and efficiency, and due to high precision machining, the circular hole of machine-shaping can be directly used for the installation of subsidiary accessory.
Description
Technical field
The invention belongs to machining apparatus technical field, is related to a kind of machining drilling tool, particularly relates to one kind
Band stops section step drill.
Background technology
Step drill also known as step drill or high speed steel fully ground step drill, the sheet metal Drilling operation being mainly used within 3mm, drill bit can be with
Used instead of branched drill bit, process the hole of different-diameter as needed, and can realize that macropore disposably machines, it is not necessary to more
Bit change and beat location hole etc..For entirety step drill using the manufacture of CBN complete wears, material is mainly high-speed steel, hard alloy etc. at present,
Requirement on machining accuracy is high, 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, aerospace, the industry such as panel beating, electric mounting maintenance, while product side
Portable belt can meet that working at height coordinates the instruments such as electric hand drill to use.According to the flute profile of product, straight trough, helicla flute, circle can be divided
Arc groove three classes；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 of drill bit, brill body and shank, bores the stepped structure of body, usually exists
Helicla flute is set with boring；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 it is high with aperture roughness, it is necessary to other specific purpose tool device to hole carry out further finishing and
Deburring；In addition, common step drill undue force in use be easy to cause 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
It is bad, the deficiencies of operating requirement height, influence production efficiency, propose that one kind saves step drill with stopping, step drill can be increased considerably
Stability in workpieces processing, can improve the precision in hole wall and aperture, can reduce difficulty of processing, and Drilling operation efficiency can also obtain
Improved to effective.
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 limit protrusion to form；It is described
Bore body to be made 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 limit protrusion, more than the diameter for stopping section, the drill bit, bore body, stop saving, allowing cutter groove the diameter of the limit protrusion
Helical flute is equipped with limit protrusion surface, the helical flute originates in drill bit, ends at limit protrusion outer surface,
Set in coherent formula.
The helical flute is double spiral groove, and helical flute is mutually 180 ° of settings, the helix angle of helical flute
For 20 °.
It is described to bore as 4 laminar steps, the diameter of 4 layers of step from top to bottom is respectively,, the height of each layer of step
All same.
Opening angle at the top of the drill bit is 118 °.
Beneficial effects of the present invention are：A kind of band proposed by the present invention stops section step drill, rational in infrastructure, whole drill bit by
Drill bit, bore body, stop section, allow cutter groove, limit protrusion and shank to collectively constitute, and is punched during use on circular pipe, significantly
Degree adds stability of the step drill in workpieces processing, and the smooth circular hole of chamfering process completion can be got in rounded face, and
And do not interfere the tube portions beyond processing, the precision in hole wall and aperture is improved, reduces difficulty of processing, substantially increases and adds
Work speed and efficiency, due to high precision machining, the circular hole of machine-shaping can be directly used for the installation of subsidiary accessory.
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 space 5, allows cutter groove 6, limit protrusion 7, shank 8.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figs 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 limit protrusion 7 to form；If bore body 3 from top to bottom by
Dry diameter is formed 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 limit protrusion 7, spacing
The diameter of protrusion 7 is more than the diameter for stopping section 4, and drill bit 2, bore body 3, stop section 4, allow cutter groove 6 and 7 surface of limit protrusion to be equipped with
Helical flute 5, helical flute 5 originate in drill bit 2, end at 7 outer surface of limit protrusion, are set in coherent formula.
As shown in Figs 1-4, helical flute 5 is double spiral groove, and helical flute 5 is mutually 180 ° of settings, helical flute 5
Helix angle be 20 °, brills body 3 is 4 laminar steps, the diameter of 4 layers of step from top to bottom respectively,, each layer of step
Height all same, the opening angle at the top of drill bit 2 is 118 °.
A kind of band of the present invention stops section step drill, rational in infrastructure, punches on circular pipe during use, significantly increases
Add stability of the step drill in workpieces processing, the smooth circular hole of chamfering process completion can be got in rounded face, and not
Tube portions beyond interference processing, improve the precision in hole wall and aperture, reduce difficulty of processing, substantially increase processing speed
Degree and efficiency, due to high precision machining, the circular hole of machine-shaping can be directly used for the installation of subsidiary accessory.
Claims (4)
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 be arranged between drill bit (2) and shank (8) brill body (3), stop section (4), allow cutter groove (6) and limit protrusion (7) to form；Institute
It is in from top to bottom that incremental step stacking is formed by several diameters to state and bore body (3), passes through chamfering between each step and step
Transition connects, 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 limit protrusion (7), the diameter of the limit protrusion (7) is more than the diameter for stopping section (4),
The drill bit (2), bore body (3), stop section (4), allow cutter groove (6) and limit protrusion (7) surface to be equipped with helical flute (5),
The helical flute (5) originates in drill bit (2), ends at limit protrusion (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) are mutually 180 ° of settings, and the helix 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 be respectively,, 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 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720993633.6U CN207239234U (en) | 2017-08-10 | 2017-08-10 | A kind of band stops section step drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720993633.6U CN207239234U (en) | 2017-08-10 | 2017-08-10 | A kind of band stops section step drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207239234U true CN207239234U (en) | 2018-04-17 |
Family
ID=61879708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720993633.6U Active CN207239234U (en) | 2017-08-10 | 2017-08-10 | A kind of band stops section step drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207239234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262786A (en) * | 2017-08-10 | 2017-10-20 | 扬州市实力五金工具工贸有限公司 | A kind of band stops section step drill and its manufacture method |
| CN108436153A (en) * | 2018-05-14 | 2018-08-24 | 东台升华工具有限公司 | A kind of three bone knob of multi-step taper brill |
-
2017
- 2017-08-10 CN CN201720993633.6U patent/CN207239234U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262786A (en) * | 2017-08-10 | 2017-10-20 | 扬州市实力五金工具工贸有限公司 | A kind of band stops section step drill and its manufacture method |
| CN108436153A (en) * | 2018-05-14 | 2018-08-24 | 东台升华工具有限公司 | A kind of three bone knob of multi-step taper brill |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107262786A (en) | A kind of band stops section step drill and its manufacture method | |
| CN207239234U (en) | A kind of band stops section step drill | |
| CN102581355A (en) | Twist drill for drilling precision holes on high-strength and high-hardness alloy materials | |
| CN202861476U (en) | High-efficiency high-precision deep hole drill | |
| EP4101566A1 (en) | Spiral step twist drill bit | |
| CN204053031U (en) | A kind of carbide alloy drilling reamer | |
| CN208391098U (en) | A kind of shift case specific complex drills and reams milling cutter | |
| CN208467351U (en) | A kind of drill mill tool | |
| CN206139882U (en) | Helical angle stereoplasm such as compound integral type of two sharp cutting drills hinge ream close system spot facing cutter | |
| CN104690342A (en) | Solid carbide self-centering inner-cooling deep-hole twist drill for ABS valve body | |
| US11571754B2 (en) | Single-lip deep-hole drill with a chamfered rake face | |
| CN101378872A (en) | Method of producing a countersunk tapped hole and drill bit for carrying out the method | |
| CN201552631U (en) | Four-blade four-helix solid center bit | |
| CN201320625Y (en) | Spiral drill reamer | |
| CN105014125B (en) | A kind of double-sided blade fluting chit drill suitable for rotating processing | |
| CN105081414B (en) | It is a kind of to head straight for gouge bit suitable for what rotating was processed | |
| CN211192180U (en) | Molding step drill convenient to disassemble and assemble | |
| CN204413237U (en) | Cold depth twist drill in the self-centering of abs valve body whole hard alloy | |
| CN208961069U (en) | It is a kind of to bore high-intensitive, high hardness alloy material essence hole fluted drill | |
| CN203711944U (en) | Durable drill | |
| CN2806004Y (en) | Spiral drill bit | |
| CN206028823U (en) | Fluted drill of high pressure heater worker precision | |
| CN209239138U (en) | Cold drilling reamer in one kind | |
| CN206567578U (en) | A kind of combined type ring cutting step drill | |
| CN206747651U (en) | Ejector drill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |