CN108380942A - A kind of hook-type aluminium sheet twist-drill special - Google Patents
A kind of hook-type aluminium sheet twist-drill special Download PDFInfo
- Publication number
- CN108380942A CN108380942A CN201810454021.9A CN201810454021A CN108380942A CN 108380942 A CN108380942 A CN 108380942A CN 201810454021 A CN201810454021 A CN 201810454021A CN 108380942 A CN108380942 A CN 108380942A
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- CN
- China
- Prior art keywords
- drilling rod
- mounting head
- drill
- hook
- drilling
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
Abstract
The present invention relates to drill bit designing technique fields, more particularly to a kind of hook-type aluminium sheet twist-drill special, the drilling rod being sequentially connected including mounting head and by the dynamic structure of mounting head and drilling machine, there are one square square holes for the setting of the junction of the mounting head and drilling rod, the bottom of the square hole is fixedly embedded one piece of strong magnets, the part that the drilling rod is connected with square hole is tetragonous rod structure, the tetragonous post part of the drilling rod is connected with the square hole clearance fit in mounting head, end integrated setting of the drilling rod far from mounting head side is drill bit structure, the middle part connection bar part of the drilling rod is provided with a removal hole that drill bit is dismantled for penetrating crow bar；The present invention is by the way that the flute profile of drill bit to be transformed, to ensure that the cutting edge after fluted drill opening is changed to hook shape by linear, in this way when processing low-durometer material, drilling can be reached and disposably completed with reamer, it is ensured that finish reaches guest's particular/special requirement in the hole after drilling.
Description
Technical field
The present invention relates to drill bit designing technique field more particularly to a kind of hook-type aluminium sheet twist-drill specials.
Background technology
Fluted drill is most widely used aperture knife tool.Ranging from 0.25~80 millimeter of general diameter.It is mainly by drill bit
Working portion and shank are constituted.Working portion has two spiral grooves, is similar to fried dough twist, thus gains the name.In order to reduce drilling
When targeting part and hole wall between friction, fluted drill be gradually reduced from apex point to shank direction diameter be in inverted cone shape.Fluted drill
Helical angle mainly influences the size of anterior angle on cutting edge, sword valve intensity and chip removal performance, usually 25 °~32 °.Spiral groove
The methods of milling, grinding, hot rolling or hot extrusion processing can be used, the front end of drill bit forms cutting tip after sharpening.Standard fried dough twist
The cutting tip apex angle of brill is 118, and chisel edge angle is 40 °~60 °, and relief angle is 8 °~20 °.Due in structure, anterior angle
It is big at outer rim, be gradually reduced to centre, be negative rake (reachable -55 ° or so) at chisel edge, when drilling from squeezing action.In order to
The cutting ability for improving fluted drill, can be grinding into various shapes (such as Ni Zhifu drill) according to the property of machined material by cutting tip.
The shank form of fluted drill has two kinds of a staight shank and taper shank, the former is clipped in drill chuck when processing, and the latter is inserted in machine tool chief axis or tail
In the taper hole of seat.General fluted drill high speed steel making.The fluted drill of seting welding carbide blade or crown be suitable for processing cast iron,
Hardened steel and nonmetallic materials etc., whole hard alloy small fried dough twists are bored for processing Meter Parts and printed wiring board etc..Fried dough twist
It when being drilled in aluminium sheet, can lead in hole that finish is not high since aluminium sheet intensity is small, after rapid drilling, usually also be carried out with reamer
It processes again, to ensure finish in hole.Thus need secondary operation, processing efficiency not high.
Invention content
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of hook-type aluminium sheet twist-drill special, lead to
It crosses and is transformed the flute profile of drill bit, to ensure that the cutting edge after fluted drill opening is changed to hook shape by linear, adding in this way
When work low-durometer material, drilling can be reached and disposably completed with reamer, it is ensured that finish reaches guest spy in the hole after drilling
It is different to require.
The present invention is achieved through the following technical solutions：
A kind of hook-type aluminium sheet twist-drill special, including mounting head and pass through the dynamic structure of mounting head and drilling machine be sequentially connected
Drilling rod, there are one square square hole, the bottom of the square hole is fixed embedding for the junction setting of the mounting head and drilling rod
Enter to have one piece of strong magnets, the part that the drilling rod is connected with square hole is tetragonous rod structure, the tetragonous post part of the drilling rod and
Square hole clearance fit connection in mounting head, end integrated setting of the drilling rod far from mounting head side are drill bit structure,
The middle part connection bar part of the drilling rod is provided with a removal hole that drill bit is dismantled for penetrating crow bar；
The drill bit includes drill body, and the spiral cutting edge on the drill body is the billhook knot that section is in hook-like
Structure, integral type is provided with the reinforcing protrusion for reinforcing blade on the outside of the cutting edge tip of the billhook structure.
Further, the mounting head integral type is fixedly mounted in the shaft of motor, the square hole in the mounting head
Depth is less than the length of the square bar section of drilling rod, ensures that removal hole exposes on the outside of mounting head.
Further, the internal diameter of the opening of the removal hole on the drilling rod is more than the internal diameter in the middle part of removal hole, described to tear open
The column pore structure that hole is in wealthy mouth is unloaded, crow bar insertion is facilitated to be dismantled while ensureing jackrod structure intensity.
Further, the reinforcing protrusion and billhook are that integration is arranged, and the outer wall for reinforcing protrusion is arc-shaped, described
Reinforce the junction rounding off of the outer wall and billhook of protrusion.
Compared with prior art, the beneficial effects of the invention are as follows：The configuration of the present invention is simple, reasonable design, provide one
Kind hook-type aluminium sheet twist-drill special, by the way that the flute profile of drill bit to be transformed, to ensure the cutting edge after fluted drill opening by straight line
Shape is changed to hook shape, in this way when processing low-durometer material, can reach drilling and disposably be completed with reamer, it is ensured that after drilling
Hole in finish reach guest's particular/special requirement.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the drill bit sectional view of the present invention.
In figure：1, mounting head, 2, drilling rod, 3, square bar section, 4, drill bit, 41, drill body, 42, billhook, 43, reinforce protrusion,
5, square hole, 6, removal hole, 7, strong magnets.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, Fig. 1 is the structural diagram of the present invention.
Embodiment one
As a preferred embodiment of the invention, the present invention relates to a kind of hook-type aluminium sheet twist-drill specials, including installation
First 1 and the drilling rod 2 that is sequentially connected by the dynamic structure of mounting head 1 and drilling machine, the junction of the mounting head 1 and drilling rod 2 is set
Square square hole 5 there are one setting, the bottom of the square hole 5 is fixedly embedded one piece of strong magnets 7, the drilling rod 2 and side
The part that hole 5 connects is tetragonous rod structure, and 5 clearance fit of square hole in the tetragonous post part and mounting head 1 of the drilling rod 2 connects
It connects, end integrated setting of the drilling rod 2 far from 1 side of mounting head is 4 structure of drill bit, the middle part connecting rod of the drilling rod 2
There are one the removal holes 6 for penetrating crow bar dismounting drill bit 4 for part setting；
The drill bit 4 includes drill body 41, and the spiral cutting edge on the drill body 41 is the hook that section is in hook-like
42 structure of knife, integral type is provided with the reinforcing protrusion 43 for reinforcing blade on the outside of the cutting edge tip of 42 structure of the billhook.
Further, 1 integral type of the mounting head is fixedly mounted in the shaft of motor, the square hole 5 in the mounting head 1
Depth be less than drilling rod 2 square bar section length, ensure that removal hole 6 exposes in the outside of mounting head 1.
Further, the internal diameter of the opening of the removal hole 6 on the drilling rod 2 is more than the internal diameter at 6 middle part of removal hole, described
Removal hole 6 is in the column pore structure of wealthy mouth, and crow bar insertion is facilitated to be dismantled while ensureing jackrod structure intensity.
Further, the reinforcing protrusion 43 and billhook 42 are that integration is arranged, and the outer wall for reinforcing protrusion 43 is in arc
Shape, raised 43 outer wall of the reinforcing and the junction rounding off of billhook 42.
Embodiment two
In the use of the present invention, by the way that the flute profile of drill bit is transformed, to ensure the cutting edge after fluted drill opening by straight
It is linear to be changed to hook shape, in this way when processing low-durometer material, drilling can be reached and disposably completed with reamer, it is ensured that drilling
Finish reaches guest's particular/special requirement in hole afterwards.
When drill bit is dismantled, after crow bar is inserted into removal hole, both hands pull crow bar both ends, firmly pull drill bit, strong magnetic
Iron and drill bit separation, drill bit smoothly take out.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (4)
1. a kind of hook-type aluminium sheet twist-drill special, including mounting head and pass through what the dynamic structure of mounting head and drilling machine was sequentially connected
Drilling rod, which is characterized in that there are one square square hole, the bottoms of the square hole for the setting of the junction of the mounting head and drilling rod
Portion is fixedly embedded, and to have one piece of strong magnets, the part that the drilling rod is connected with square hole be tetragonous rod structure, the tetragonous of the drilling rod
Post part is connected with the square hole clearance fit in mounting head, and end integrated setting of the drilling rod far from mounting head side is to bore
The middle part connection bar part of header structure, the drilling rod is provided with a removal hole that drill bit is dismantled for penetrating crow bar；
The drill bit includes drill body, and the spiral cutting edge on the drill body is the billhook structure that section is in hook-like, institute
It is raised to state the reinforcing that integral type on the outside of the cutting edge tip of billhook structure is provided with for reinforcing blade.
2. a kind of hook-type aluminium sheet twist-drill special according to claim 1, it is characterised in that：The mounting head integral type is solid
In the shaft of motor, the depth of the square hole in the mounting head is less than the length of the square bar section of drilling rod for Dingan County.
3. a kind of hook-type aluminium sheet twist-drill special according to claim 1, it is characterised in that：Removal hole on the drilling rod
Opening internal diameter be more than removal hole in the middle part of internal diameter, the removal hole be in wealthy mouth column pore structure.
4. a kind of hook-type aluminium sheet twist-drill special according to claim 1, it is characterised in that：The reinforcing protrusion and billhook
It is arranged for integration, the outer wall for reinforcing protrusion is arc-shaped, the round and smooth mistake in junction of the outer wall and billhook for reinforcing protrusion
It crosses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810454021.9A CN108380942A (en) | 2018-05-14 | 2018-05-14 | A kind of hook-type aluminium sheet twist-drill special |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810454021.9A CN108380942A (en) | 2018-05-14 | 2018-05-14 | A kind of hook-type aluminium sheet twist-drill special |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108380942A true CN108380942A (en) | 2018-08-10 |
Family
ID=63071019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810454021.9A Pending CN108380942A (en) | 2018-05-14 | 2018-05-14 | A kind of hook-type aluminium sheet twist-drill special |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108380942A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975054A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | Multipurpose milling cutter type drill bit |
| CN112345287A (en) * | 2020-11-18 | 2021-02-09 | 山东合创环保科技有限公司 | Soil detection is with soil sampling device that becomes more meticulous |
| CN112692800A (en) * | 2020-12-17 | 2021-04-23 | 东台升华工具有限公司 | Drill bit drilling and milling system convenient to maintain and manage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0404298A1 (en) * | 1989-06-20 | 1990-12-27 | Hitachi Tool Kabushiki Kaisha | End mill for finishing the face or side of hard work |
| CN201172116Y (en) * | 2007-10-16 | 2008-12-31 | 徐润华 | Convenient fixation drill |
| CN203371087U (en) * | 2013-07-12 | 2014-01-01 | 温岭市工量刃具行业协会 | Twist drill |
| CN105033330A (en) * | 2015-09-02 | 2015-11-11 | 苏州阿诺精密切削技术股份有限公司 | Low-torque self-correction drill with reinforced drill point |
| CN205914793U (en) * | 2016-07-22 | 2017-02-01 | 中启胶建集团有限公司 | Prefabricated drilling equipment of building construction water mud wall |
-
2018
- 2018-05-14 CN CN201810454021.9A patent/CN108380942A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0404298A1 (en) * | 1989-06-20 | 1990-12-27 | Hitachi Tool Kabushiki Kaisha | End mill for finishing the face or side of hard work |
| CN201172116Y (en) * | 2007-10-16 | 2008-12-31 | 徐润华 | Convenient fixation drill |
| CN203371087U (en) * | 2013-07-12 | 2014-01-01 | 温岭市工量刃具行业协会 | Twist drill |
| CN105033330A (en) * | 2015-09-02 | 2015-11-11 | 苏州阿诺精密切削技术股份有限公司 | Low-torque self-correction drill with reinforced drill point |
| CN205914793U (en) * | 2016-07-22 | 2017-02-01 | 中启胶建集团有限公司 | Prefabricated drilling equipment of building construction water mud wall |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111975054A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | Multipurpose milling cutter type drill bit |
| CN112345287A (en) * | 2020-11-18 | 2021-02-09 | 山东合创环保科技有限公司 | Soil detection is with soil sampling device that becomes more meticulous |
| CN112692800A (en) * | 2020-12-17 | 2021-04-23 | 东台升华工具有限公司 | Drill bit drilling and milling system convenient to maintain and manage |
| CN112692800B (en) * | 2020-12-17 | 2023-01-10 | 东台升华工具有限公司 | Drill bit drilling and milling system convenient to maintain and manage |
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