CN206009948U - A kind of jackrod structure of drill bit - Google Patents
A kind of jackrod structure of drill bit Download PDFInfo
- Publication number
- CN206009948U CN206009948U CN201621082384.7U CN201621082384U CN206009948U CN 206009948 U CN206009948 U CN 206009948U CN 201621082384 U CN201621082384 U CN 201621082384U CN 206009948 U CN206009948 U CN 206009948U
- Authority
- CN
- China
- Prior art keywords
- rod
- drill bit
- chip area
- lobe
- jackrod structure
- 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.)
- Expired - Fee Related
Links
Abstract
This utility model provides a kind of jackrod structure of drill bit, belongs to machine tool technical field.It solves the low technical problem of existing bit bore efficiency.The jackrod structure of this drill bit includes the columned body of rod, the end of the body of rod has four spaced lobe bodies, four lobe bodies form cross slot in the end of the body of rod, the chip area of spiral is offered on the outer peripheral face of drilling rod, guiding gutter is offered on each lobe body, and guiding gutter is arranged along the length direction of drilling rod and is connected with chip area.Drill rod end in this utility model can assemble the cutter head structure with four cutting edges, and point of a knife is transitioned into four cutting edges to carry out chip after the drilling for completing original position, at once, and in the case where rod rotation speed is certain, stock-removing efficiency is greatly improved.
Description
Technical field
This utility model belongs to machine tool technical field, is related to a kind of jackrod structure of drill bit.
Background technology
Drill bit is the instrument of a kind of common machining or production operation, can drill on workpiece or construction object, fortune
It is used on various electric drills, drilling machine or drilling machine, extensively, while the species of drill bit is also varied, usual drill bit is all for use range
Including a knife bar, there is knife bar a tip, tip to have cutting blade, and there is chip area also on knife bar, during use drill bit around
Vertical shaft rotates, while moving axially.Under the moment of torsion and responsive to axial force of drill bit, workpiece or construction object are cut and portal, broken
Bits are discharged from chip area.
China's patent documentation (notification number：CN203592176U；The day for announcing：A kind of new beat is disclosed in 2014-05-14)
Drill, including drilling rod, cutting edge, drilling rod is provided with connector, includes the skewed slot being adapted to cutting edge, skewed slot on connector
It is divided into the first protection portion, the second protection portion by connector center and by connector, cutting edge includes two arc milling swords, two
Bar arc milling sword is engaged on cutting edge top and forms point of a knife of the angle less than 90 degree；Protection portion be the thicker other end in one end compared with
Thin skewback, drilling rod are welded with cutting edge, and drilling rod the week side of boss is provided with anti-dandruff screw thread.
Drill bit in above-mentioned patent documentation only has two cutting edges, and cutting effect is relatively low.
Content of the invention
The problems referred to above that this utility model is present for existing technology, there is provided a kind of jackrod structure of drill bit, this practicality
New technical problem to be solved is：How drilling efficiency when drill bit use is improved.
The purpose of this utility model can be realized by following technical proposal：
A kind of jackrod structure of drill bit, including the columned body of rod, it is characterised in that the end of the body of rod has four
Spaced lobe body, four lobe bodies form cross slot in the end of the body of rod, offer on the outer peripheral face of the drilling rod
The chip area of spiral, offers guiding gutter on each described lobe body, the guiding gutter arrange along the length direction of drilling rod and with
The chip area is connected.
This jackrod structure is provided with the cutter head structure coordinated with which, and both are collectively forming a complete drill bit, and cutter head is tied
Structure includes body, and body is in cross cylinder, have on body the first blade for being made up of two relative cutting edges and by
Second blade of two other relative cutting edge composition, four cutting edges are located at the surrounding of body and along the highly square of body
To setting, four cutting edges are respectively provided with the arc blade surface inclined to body central line, the arc of two cutting edges of the first blade
Blade surface is gathered and a little forms point of a knife, and there is between the arc blade surface of two cutting edges of the second blade and point of a knife spacing.By knife
Header structure is welded in the cross slot of jackrod structure end, and point of a knife is transitioned into four after the drilling for completing original position, at once
Carrying out chip, in the case where rod rotation speed is certain, stock-removing efficiency lifts 2 times to individual cutting edge, and the intensity of cutter head is bigger,
Cutting edge is not allowed fragile.
Further, in above-mentioned cutter head structure, the arc blade surface of two cutting edges of the second blade is located at knife respectively
Sharp both sides and and the side wall of point of a knife both sides between have arc groove.Second blade is so prevented to Workpiece boring original position
Interfere and affect, and quick smooth transition of the cutter head from two cutting edges to four cutting edges is easy to by arc groove.
In the jackrod structure of above-mentioned drill bit, the chip area is double helicla flute, and the chip area extends to cross
At the notch of slot, two adjacent guiding gutters are connected with one of chip area, and two other is adjacent described to lead
Chute is connected with another chip area.So it is easy to quick smoothly discharge scrap, is conducive to improving drilling efficiency.
In the jackrod structure of above-mentioned drill bit, the lobe body is located on the end face of the body of rod and week along the body of rod
It is distributed to uniform intervals.Also uniform intervals are arranged so to cause four cutting edges, it is ensured that effect of each cutting edge is consistent, improves
Drilling efficiency.
In the jackrod structure of above-mentioned drill bit, the lobe body is integrally formed with the body of rod.So ensure whole drilling rod
Bonding strength, and reduce production process, easy to process quick.
In the jackrod structure of above-mentioned drill bit, the lateral surface of the lobe body is in cambered surface and the lobe body is by lobe body and the body of rod
Thickness is gradually reduced outward for junction.The shape and structure of lobe body is matched with the arc blade surface of cutter head cutting edge, is reduced and is bored
Interference and impact when bar drills on cutter head.
Compared with prior art, in this utility model, drill rod end can assemble the cutter head structure with four cutting edges,
Point of a knife is formed by the relative cutting edge of two of which, and there is certain spacing between two other relative cutting edge and point of a knife,
The spacing very little, point of a knife are transitioned into four cutting edges to carry out chip after the drilling for completing original position, at once, turn in drilling rod
In the case that speed is certain, stock-removing efficiency is greatly improved, and the intensity of cutter head is bigger, and cutting edge is not allowed fragile.
Description of the drawings
Fig. 1 is the dimensional structure diagram of drill bit.
Fig. 2 is the dimensional structure diagram of drilling rod in drill bit.
Fig. 3 is the dimensional structure diagram of cutter head in drill bit.
In figure, 1, the body of rod；11st, chip area；12nd, guiding gutter；13rd, lobe body；14th, cross slot；2nd, body；21st, cutting edge；
21a, arc blade surface；22nd, point of a knife；23rd, arc groove.
Specific embodiment
The following is specific embodiment of the utility model and combine accompanying drawing, the technical solution of the utility model is made further
Description, but this utility model is not limited to these embodiments.
Generally only two cutting edges just to arranging of normal drill bit of the prior art, two such cutting edge are formed
Point of a knife is sharper, is easy to the efficient operation when pulling out of hole, but follow-up due to the limited amount of cutting edge, and the rotating speed of drilling rod
Limited, cause the efficiency of borehole cuttings low；Drill bit in the technical program is improved on this basis, such as Fig. 1 and Fig. 3 institutes
Show, the jackrod structure of this drill bit includes the columned body of rod 1, the end of the body of rod 1 has four spaced lobe bodies 13, four
Lobe body 13 forms cross slot 14 in the end of the body of rod 1, offers the chip area 11 of spiral, each lobe body on the outer peripheral face of drilling rod
Guiding gutter 12 is offered on 13, and guiding gutter 12 is arranged along the length direction of drilling rod and is connected with chip area 11；Chip area 11
For double helicla flute, chip area 11 is extended at the notch of cross slot 14, two adjacent guiding gutters 12 and one of row
Bits groove 11 is connected, and two other adjacent guiding gutter 12 is connected with another chip area 11.This jackrod structure is provided with
The cutter head structure coordinated with which, both are collectively forming a complete drill bit, and the cutter head structure includes body 2, and body 2 is in cross
The cylinder of type, has the first blade being made up of two relative cutting edges 21 and by two other relative cutting on body 2
Second blade of the composition of sword 21, four cutting edges 21 are positioned at the surrounding of body 2 and the short transverse along body 2 is arranged, four
Cutting edge 21 is respectively provided with arc blade surface 21a to 2 centerline dip of body, the arc blade surface of two cutting edges 21 of the first blade
21a is gathered and is a little formed point of a knife 22, between having between arc blade surface 21a of two cutting edges 21 of the second blade and point of a knife 22
Away from；Arc blade surface 21a of two cutting edges 21 of the second blade is located at 22 both sides of point of a knife and the side wall with 22 both sides of point of a knife respectively
Between have arc groove 23.Interference and impact of second blade on Workpiece boring original position is so prevented, and passes through arc
Connected in star 23 is easy to cutter head from the quick smooth transition of two cutting edges, 21 to four cutting edges 21.
Quick smoothly discharge scrap is easy in chip area 11 on this jackrod structure and the design of guiding gutter 12, is conducive to improving
Drilling efficiency；Lobe body 13 is located on the end face of the body of rod 1 and the circumferential uniform intervals distribution along the body of rod 1.Four cuttings are so caused
Also uniform intervals are arranged sword 21, it is ensured that effect of each cutting edge 21 is consistent, improves drilling efficiency；Lobe body 13 and 1 one of the body of rod
Molding.So ensure the bonding strength of whole drilling rod, and reduce production process, easy to process quick；The lateral surface of lobe body 13
In cambered surface and lobe body 13, by the junction of lobe body 13 and the body of rod 1, thickness is gradually reduced outward.The shape and structure and knife of lobe body 13
Arc blade surface 21a of head cutting edge 21 matches, and reduces interference and impact when drilling rod drills on cutter head.
Above-mentioned drilling rod and cutter head are used cooperatively, and are bored by being welded on to be formed cutter head in drill rod end cross slot 14
Head, cutter head are provided with four cutting edges 21, and point of a knife 22 is only made up of two relative cutting edges 21, and two other is relative to cut
Cut between sword 21 and point of a knife 22 have certain spacing, the spacing very little, point of a knife 22 after the drilling for completing original position, at once
It is transitioned into four cutting edges 21 to carry out chip, in the case where rod rotation speed is certain, stock-removing efficiency lifts 2 times, and cutter head
Intensity bigger, cutting edge 21 is not allowed fragile.
Specific embodiment described herein is only to the explanation for example of this utility model spirit.This utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from of the present utility model spirit or surmount scope defined in appended claims.
Although more having used the 1, body of rod herein；11st, chip area；12nd, guiding gutter；13rd, lobe body；14th, cross slot；2、
Body；21st, cutting edge；21a, arc blade surface；22nd, point of a knife；23rd, the term such as arc groove, but be not precluded from using other terms
Probability.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；They are explained
All it is contrary with this utility model spirit into any additional restriction.
Claims (5)
1. a kind of jackrod structure of drill bit, including the columned body of rod (1), it is characterised in that the end of the body of rod (1) has
Four spaced lobe body (13), four lobe body (13) form cross slot (14), the brill in the end of the body of rod (1)
The chip area (11) of spiral is offered on the outer peripheral face of bar, offers guiding gutter (12) on each described lobe body (13), described
Guiding gutter (12) is arranged along the length direction of drilling rod and is connected with the chip area (11).
2. the jackrod structure of drill bit according to claim 1, it is characterised in that described chip area (11) are double spiral
Groove, chip area (11) are extended at the notch of cross slot (14), two adjacent guiding gutters (12) and wherein
Individual chip area (11) are connected, and two other adjacent described guiding gutter (12) is connected with another chip area (11).
3. the jackrod structure of drill bit according to claim 1 and 2, it is characterised in that described lobe body (13) are located at the bar
Circumferential uniform intervals distribution on the end face of body (1) and along the body of rod (1).
4. the jackrod structure of drill bit according to claim 1 and 2, it is characterised in that lobe body (13) and the body of rod
(1) it is integrally formed.
5. the jackrod structure of drill bit according to claim 1 and 2, it is characterised in that the lateral surface of lobe body (13) is in
Thickness is gradually reduced outward by the junction of lobe body (13) and the body of rod (1) for cambered surface and the lobe body (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082384.7U CN206009948U (en) | 2016-05-17 | 2016-05-17 | A kind of jackrod structure of drill bit |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621082384.7U CN206009948U (en) | 2016-05-17 | 2016-05-17 | A kind of jackrod structure of drill bit |
| CN201620450103.2U CN205684786U (en) | 2016-05-17 | 2016-05-17 | A kind of cutter head structure of drill bit |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620450103.2U Division CN205684786U (en) | 2016-05-17 | 2016-05-17 | A kind of cutter head structure of drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206009948U true CN206009948U (en) | 2017-03-15 |
Family
ID=57261741
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621082384.7U Expired - Fee Related CN206009948U (en) | 2016-05-17 | 2016-05-17 | A kind of jackrod structure of drill bit |
| CN201620450103.2U Expired - Fee Related CN205684786U (en) | 2016-05-17 | 2016-05-17 | A kind of cutter head structure of drill bit |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620450103.2U Expired - Fee Related CN205684786U (en) | 2016-05-17 | 2016-05-17 | A kind of cutter head structure of drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN206009948U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772809A (en) * | 2016-05-17 | 2016-07-20 | 刘小蓉 | Drill stem and tool bit of drill bit and manufacturing method of drill bit |
-
2016
- 2016-05-17 CN CN201621082384.7U patent/CN206009948U/en not_active Expired - Fee Related
- 2016-05-17 CN CN201620450103.2U patent/CN205684786U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772809A (en) * | 2016-05-17 | 2016-07-20 | 刘小蓉 | Drill stem and tool bit of drill bit and manufacturing method of drill bit |
| CN105772809B (en) * | 2016-05-17 | 2019-01-25 | 刘小蓉 | A kind of manufacturing method of drill bit and drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205684786U (en) | 2016-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101152671B (en) | A tool for chip removing machining and a cutting insert therefor | |
| CN105772809B (en) | A kind of manufacturing method of drill bit and drill bit | |
| CN1671499A (en) | Solid drill bit for machine tools | |
| CN106216743A (en) | A kind of double tapered angle chip-breaking drill bit | |
| WO2008133295A1 (en) | Boring rotary cutting tool | |
| CN206009948U (en) | A kind of jackrod structure of drill bit | |
| CN205551557U (en) | High -efficient fluted drill of layering drilling | |
| US6231281B1 (en) | Thread milling cutter with drilling edges | |
| CN209078885U (en) | A kind of drill bit for soft material processing | |
| CN206286612U (en) | A kind of chip discharging structure of drill bit | |
| JP2009178787A (en) | Drill, cutting insert for drill, and cutting method | |
| CN205733152U (en) | A kind of drill bit | |
| CN103692003B (en) | Auger bit with highly-spiral land | |
| CN206653008U (en) | Processing stainless steel fluted drill | |
| CN207930031U (en) | A kind of hard alloy twist drill with four plane F types | |
| CN212169101U (en) | Major diameter fluted drill of two R cell types | |
| CN209110249U (en) | Hard alloy forms gouge bit | |
| CN203547543U (en) | Mini-sized coring bit with sharp and round tooth | |
| CN103551634A (en) | Straight-flute drill | |
| CN208991828U (en) | A kind of brill milling hinge composite cutter | |
| CN207479674U (en) | A kind of drill bit for processing superhard material | |
| CN204639240U (en) | A kind of drill bit | |
| CN104999114B (en) | A kind of hole machined straight-flute drill | |
| CN205289944U (en) | A shaping reamer for processing soft -magnetic stainless steel connects pole hole | |
| CN207983561U (en) | A kind of square auger drill core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20200517 |