CN209035533U - Cold step drill head in one kind - Google Patents
Cold step drill head in one kind Download PDFInfo
- Publication number
- CN209035533U CN209035533U CN201821907875.XU CN201821907875U CN209035533U CN 209035533 U CN209035533 U CN 209035533U CN 201821907875 U CN201821907875 U CN 201821907875U CN 209035533 U CN209035533 U CN 209035533U
- Authority
- CN
- China
- Prior art keywords
- buffer bar
- drilling rod
- groups
- fixedly connected
- buffering
- 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
Landscapes
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The utility model discloses step drill heads cold in one kind of cutting element technical field, including drilling rod, the drilling rod right end is fixedly connected with buffer bar, and drilling rod left end is fixedly connected with drill bit, cutting slot is provided on the drilling rod, interior cold hole is offered on the drill bit, the buffer bar right end extends to buffering tube cavity and is fixedly connected with drive rod, and buffer bar outer wall fixing sleeve is equipped with buffering ring, four groups of buffer springs are installed on the ring wall of the buffering ring two sides, the separator tube left and right ends are provided with nesting, the drilling rod along its length on equally spacedly be equipped with cascaded surface, the buffer bar top offers cooling liquid inlet, the utility model has the problem for avoiding that coolant liquid supplement is insufficient in cutting process, and reduce the influence shaken to drilling rod, improve the safety of bit operation process, extend drill bit Service life.
Description
Technical field
The utility model discloses step drill heads cold in one kind, specially cutting element technical field.
Background technique
Fluted drill is the rotary cutting by its relatively fixed axis with the tool of the circular hole of drilling workpiece.Because of its chip pocket
It is spiral and be similar to fried dough twist and gain the name.Standard fluted drill is made of shank, neck and working portion.The application of fluted drill is very
It extensively, is essential cutting element in multinomial technical field.
The magnitude of recruitment of existing spiral bit coolant liquid during the work time is not caught up with, and chip removal effect is bad, and when work produces
Raw vibration is easy to cause the fracture or disengaging of drive rod and drilling rod, and safety coefficient is low, and service life is short, and the drill bit after use
The coolant liquid of inner cavity cannot be effectively purged, and the next time that will affect drill bit uses, for this purpose, we have proposed ranks cold in one kind
Terraced spiral bit comes into operation, to solve the above problems.
Utility model content
The purpose of this utility model is to provide step drill heads cold in one kind, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the utility model provides the following technical solutions: cold step drill head in one kind, including bores
Bar, the drilling rod right end is fixedly connected with buffer bar, and drilling rod left end is fixedly connected with drill bit, and cutting is provided on the drilling rod
Slot offers interior cold hole on the drill bit, and the buffer bar right end extends to buffering tube cavity and is fixedly connected with drive rod, and
Buffer bar outer wall fixing sleeve is equipped with buffering ring, is equipped with four groups of buffer springs on the ring wall of the buffering ring two sides, delays described in four groups
It rushes spring to be symmetrical arranged two-by-two, and four groups of buffer spring one end are fixedly connected with the installation convex block of buffering tube cavity respectively, it is described
Separator tube left and right ends are provided with nesting, the drilling rod along its length on be equally spacedly equipped with cascaded surface, the buffering
Bar top offers cooling liquid inlet, and is equipped with thread plug on the symmetrical side wall of cooling liquid inlet on buffer bar.
Preferably, the chisel edge is equipped with three groups of blades being circumferentially arranged, the folder between blade described in two adjacent groups
Angle is 120 degree, is equipped with chip space corresponding with blade on the outside of the interior cold hole, and interior cold hole is set to the middle part of drill bit, three groups of institutes
The end for stating blade extends on the outside of drilling rod, and blade is formed in certain radian.
Preferably, the drilling rod and buffer bar inner cavity are equipped with cooling duct, and the cooling duct of the buffer bar inner cavity is in T
Type, and two groups of imports of buffer bar inner cavity cooling duct are connect with cooling liquid inlet and screw thread mouth respectively, the coolant liquid into
Strainer is equipped on the inside of mouthful, the buffer bar side wall offers threaded hole compatible with thread plug.
Preferably, the buffering ring is slidably connected with buffering inside pipe wall, the junction of the buffer spring and installation convex block
Be provided with improved mat, the separator tube both ends are fixedly installed with the fixed plate that perforation is adapted with buffer bar, it is described it is nested with
Fixed plate side wall closely connects.
Preferably, the buffering pipe outer wall is coarse structure, and the drive rod extends to buffering tube cavity and buffer bar is solid
Fixed connection, and drive rod is equipped with stop collar close to one end of buffer bar, the cascaded surface is equipped with cooling hole.
Compared with prior art, the utility model has the beneficial effects that the utility model structure is simple, design rationally, is led to
It crosses the setting of cascaded surface and interior cold hole, so that coolant liquid is replenished in time drill bit during the work time, improves the work of drill bit
Performance, chisel edge are provided with three groups of blades equidistantly arranged, can be rapidly performed by cutwork, improve work effect
Rate, the setting of separator tube, buffering ring and buffer spring can reduce the vibration generated during bit operation to drive rod and brill
The influence of bar connection, extends the service life of drill bit, improves safety, using effect is good.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model drill bit structure schematic diagram；
Fig. 3 is the utility model buffer bar inner-cavity structure schematic diagram.
In figure: 1 drilling rod, 2 buffer bars, 3 cutting slots, 4 drill bits, cold hole, 6 blades, 7 chip spaces, 8 drive rods, 9 bufferings in 5
Pipe, 10 nestings, 11 buffering rings, 12 buffer springs, 13 installation convex blocks, 14 cascaded surfaces, 15 cooling liquid inlets, 16 thread plugs.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: cold step drill head in one kind, including drilling rod
1,1 right end of drilling rod is fixedly connected with buffer bar 2, and 1 left end of drilling rod is fixedly connected with drill bit 4, is provided with and cuts on the drilling rod 1
Slot 3 is cut, interior cold hole 5 is offered on the drill bit 4,2 right end of buffer bar extends to 9 inner cavity of separator tube and consolidates with drive rod 8
Fixed connection, and 2 outer wall fixing sleeve of buffer bar is equipped with buffering ring 11, is equipped with four groups of buffering elastics on the 11 two sides ring wall of buffering ring
Spring 12, buffer spring 12 described in four groups are symmetrical arranged two-by-two, and four groups of 12 one end of buffer spring peace with 9 inner cavity of separator tube respectively
Dress convex block 13 is fixedly connected, and 9 left and right ends of separator tube are provided with nesting 10, and the drilling rod 1 is first-class along its length
Be equipped with cascaded surface 14 to spacing, 2 top of buffer bar offers cooling liquid inlet 15, and on buffer bar 2 with cooling liquid inlet
Thread plug 16 is installed on 15 symmetrical side walls.
Wherein, 4 front end of drill bit is equipped with three groups of blades 6 being circumferentially arranged, the folder between blade 6 described in two adjacent groups
Angle is 120 degree, is equipped with chip space 7 corresponding with blade 6 on the outside of the interior cold hole 5, and interior cold hole 5 is set on the middle part of drill bit 4, three
The end of the group blade 6 extends to 1 outside of drilling rod, and blade 6 is formed in certain radian, the drilling rod 1 and 2 inner cavity of buffer bar
It is equipped with cooling duct, the cooling duct of 2 inner cavity of buffer bar is T-shaped, and two groups of imports of 2 inner cavity cooling duct of buffer bar
It is connect respectively with cooling liquid inlet 15 and screw thread mouth, strainer, 2 side wall of buffer bar is equipped on the inside of the cooling liquid inlet 15
Threaded hole compatible with thread plug 16 is offered, the buffering ring 11 is slidably connected with 9 inner wall of separator tube, the buffer spring
12 are provided with improved mat with the junction for installing convex block 13, and 9 both ends of separator tube are fixedly installed with to be adapted with buffer bar 2
The fixed plate of perforation, described nested 10 closely connect with fixed plate side wall, and 9 outer wall of separator tube is coarse structure, the drive
Lever 8 extends to 9 inner cavity of separator tube and is fixedly connected with buffer bar 2, and drive rod 8 is equipped with stop collar close to one end of buffer bar 2,
The cascaded surface 14 is equipped with cooling hole.
Working principle: the utility model is equipped with cooling hole on cascaded surface 14, it is ensured that and coolant liquid is timely supplemented,
Reduce temperature when drill bit 4 works, the problem of cutting effect difference caused by preventing cutting temperature excessively high, three groups of equidistantly distributeds
Curved blade 6, the speed of cutting can be accelerated, the smooth structure of chip space 7 falls convenient for bits slag, and coolant liquid can also pass through
Cooling liquid inlet 15 enters the inner cavity of buffer bar 2 and drilling rod 1, after having used, can unscrew thread plug 16, fill into cooling duct
Defeated ejected wash water cleans up the coolant liquid of its inner cavity, convenient for the maintenance to drilling rod 1, while the shake that 1 course of work of drilling rod generates
Dynamic, the drive buffering ring 11 of buffer bar 2 does the movement of left and right amplitude, and the buffer spring 12 of two sides compresses, reduces vibration, reduce
The fracture that drive rod 8 is connect with buffer bar 2, improves the service life of drill bit 4, and the nesting 10 of 9 two sides of separator tube can guarantee
The stability that drive rod 8 is connect with buffer bar 2, using effect is good, practical.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. cold step drill head in one kind, including drilling rod (1), it is characterised in that: drilling rod (1) right end is fixedly connected with buffering
Bar (2), and drilling rod (1) left end is fixedly connected with drill bit (4), is provided with cutting slot (3) on the drilling rod (1), the drill bit (4)
On offer interior cold hole (5), buffer bar (2) right end extends to separator tube (9) inner cavity and is fixedly connected with drive rod (8),
And buffer bar (2) outer wall fixing sleeve is equipped with buffering ring (11), is equipped with four groups of buffering elastics on the ring wall of buffering ring (11) two sides
Spring (12), buffer spring described in four groups (12) are symmetrical arranged two-by-two, and four groups of buffer spring (12) one end respectively with separator tube (9)
The installation convex block (13) of inner cavity is fixedly connected, and separator tube (9) left and right ends are provided with nested (10), the drilling rod (1)
Cascaded surface (14) equally spacedly are equipped on along its length, buffer bar (2) top offers cooling liquid inlet (15), and
Thread plug (16) are installed on the symmetrical side wall of cooling liquid inlet (15) on buffer bar (2).
2. cold step drill head in one kind according to claim 1, it is characterised in that: drill bit (4) front end is equipped with
Three groups of blades (6) being circumferentially arranged, the angle between blade (6) described in two adjacent groups is 120 degree, and the interior cold hole (5) is outside
Side is equipped with chip space (7) corresponding with blade (6), and interior cold hole (5) is set to the middle part of drill bit (4), blade described in three groups (6)
End extends on the outside of drilling rod (1), and blade (6) is formed in certain radian.
3. cold step drill head in one kind according to claim 1, it is characterised in that: the drilling rod (1) and buffer bar
(2) inner cavity is equipped with cooling duct, and the cooling duct of buffer bar (2) inner cavity is T-shaped, and buffer bar (2) inner cavity is cooling logical
Two groups of imports in road are connect with cooling liquid inlet (15) and screw thread mouth respectively, and filter is equipped on the inside of the cooling liquid inlet (15)
Net, buffer bar (2) side wall offer and thread plug (16) compatible threaded hole.
4. cold step drill head in one kind according to claim 1, it is characterised in that: the buffering ring (11) and buffering
Pipe (9) inner wall is slidably connected, and the junction of the buffer spring (12) and installation convex block (13) is provided with improved mat, described slow
Washing pipe (9) both ends are fixedly installed with the fixed plate that perforation is adapted with buffer bar (2), and the nesting (10) and fixed plate side wall are tight
Close connection.
5. cold step drill head in one kind according to claim 1, it is characterised in that: separator tube (9) outer wall is
Coarse structure, the drive rod (8) extends to separator tube (9) inner cavity and is fixedly connected with buffer bar (2), and drive rod (8) is close
One end of buffer bar (2) is equipped with stop collar, and the cascaded surface (14) is equipped with cooling hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821907875.XU CN209035533U (en) | 2018-11-20 | 2018-11-20 | Cold step drill head in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821907875.XU CN209035533U (en) | 2018-11-20 | 2018-11-20 | Cold step drill head in one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209035533U true CN209035533U (en) | 2019-06-28 |
Family
ID=67042886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821907875.XU Expired - Fee Related CN209035533U (en) | 2018-11-20 | 2018-11-20 | Cold step drill head in one kind |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209035533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456640A (en) * | 2020-04-29 | 2020-07-28 | 邹城兖矿泰德工贸有限公司 | Outburst prevention drill bit |
-
2018
- 2018-11-20 CN CN201821907875.XU patent/CN209035533U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456640A (en) * | 2020-04-29 | 2020-07-28 | 邹城兖矿泰德工贸有限公司 | Outburst prevention drill bit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201405114Y (en) | End milling cutter with unequal helical angles | |
| CN209035533U (en) | Cold step drill head in one kind | |
| CN105178870A (en) | Integral type hard alloy pulsed nozzle and producing technology thereof | |
| CN208961097U (en) | A kind of high efficiency plain milling cutter | |
| CN202155611U (en) | Reamer | |
| CN204076535U (en) | The boring cutter of a kind of machining graphite | |
| CN201677066U (en) | Composite type drill bit capable of processing deep holes | |
| CN206286612U (en) | A kind of chip discharging structure of drill bit | |
| CN109365887A (en) | A kind of milling cutting insert | |
| CN203045000U (en) | Hard alloy high-speed twist drill | |
| CN209664392U (en) | Cylinder cap fuel injector aperture knife tool | |
| CN209062234U (en) | A kind of U-type groove unequal blade spacing milling cutter | |
| CN203171024U (en) | Drill bit with slag removal device | |
| CN203592518U (en) | Ceramic water jet cutter with long service life | |
| CN203679382U (en) | Two-blade round-nose aluminum milling cutter | |
| CN208391091U (en) | A kind of reconditioning with the chip dividing groove bits that die bore | |
| CN105945332A (en) | Dense serrated cutter for cutting gas pipeline and pipeline cutting method | |
| CN202894491U (en) | Reamer holder | |
| CN208450674U (en) | A kind of carbide drill with point of a knife protection structure | |
| CN201669432U (en) | Multi-tip thread cutter | |
| CN206500667U (en) | Body of tool bit | |
| CN214053967U (en) | Hook lock forming external thread blade | |
| CN219900393U (en) | Coarse machining PCD milling cutter for dry cutting | |
| CN208502672U (en) | A kind of drill bit of Wear-resistant, high-temperature resistant | |
| CN201446307U (en) | Split type stamping knife |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190628 Termination date: 20201120 |