CN209157240U - A kind of drill bit synchronously completing through-hole and chamfering operation - Google Patents
A kind of drill bit synchronously completing through-hole and chamfering operation Download PDFInfo
- Publication number
- CN209157240U CN209157240U CN201822043248.2U CN201822043248U CN209157240U CN 209157240 U CN209157240 U CN 209157240U CN 201822043248 U CN201822043248 U CN 201822043248U CN 209157240 U CN209157240 U CN 209157240U
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- Prior art keywords
- hole
- drill bit
- cutter head
- countersink
- head
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Abstract
A kind of drill bit synchronously completing through-hole and chamfering operation, bit head including integral structure and the rod portion being fixed with drilling machine, and bit head and rod portion junction are provided with fixation cutter head, fixation cutter head is towards the countersink being fixed on the bottom surface of bit head by fastening bolt for chamfering, one end of fixation cutter head towards rod portion is provided with rotary joint, coolant liquid is injected into the cooling hole of fixation cutter head by rotary joint, and then drill bit is cooled down.The utility model utilizes fixation cutter head by countersink in conjunction with drill bit, it realizes and synchronously completes through-hole and chamfering operation, without looking for hole center when tool changing back and forth and chamfering, improve the efficiency of drilling, and in bore operation, it can according to need and directly drill bit is cooled down using coolant liquid, solve the heating problem after drill bit works long hours.
Description
Technical field
The boring drill bit that the utility model relates to use to field of machining, specifically one kind synchronously completes logical
The drill bit in hole and chamfering operation.
Background technique
In the prior art, the common method of processing chamfer through-hole is completed by two procedures, the first procedure fiber crops
Flower bores and first drills through in hole, exits drilling rod, takes down fluted drill, change counterbit, into second operation work spot-facing end chamfer.This drilling
Mode has problems in that, needs replacing drill bit, and drilling efficiency is relatively low.
And a kind of brill spot-facing cutter is disclosed application No. is 2013105334983 patent of invention, which is in drill bit
Middle part countersink is set, improve drilling efficiency by means of which；But this device has problems in that, due to simultaneously
Carried out drilling and chamfering operation, therefore Driller Exothermic is obvious, and in a large amount of bore operations, the heat of drill bit cannot and
When exhale, cause the service life of drill bit to reduce.
Utility model content
In order to solve in the prior art while carry out heating problem existing for the cutter of drilling and chamfering, the utility model is mentioned
A kind of drill bit for synchronously completing through-hole and chamfering operation is supplied, the drill bit connects by installing rotation additional on the cutterhead of installation countersink
Head, and coolant liquid is passed through in rotary joint, flow out coolant liquid to drill bit while operation by the cooling hole on cutterhead
It is cooled down, solves the problems, such as Driller Exothermic.
Technical solutions adopted by the utility model to solve the above technical problems are as follows: one kind synchronously completes through-hole and chamfering
The drill bit of operation, bit head including integral structure and the rod portion being fixed with drilling machine, and bit head and rod portion combine
Place is provided with fixation cutter head, fixation cutter head towards being fixed with the countersink for chamfering by fastening bolt on the bottom surface of bit head,
One end of the fixation cutter head towards rod portion is provided with rotary joint, which includes having through-hole in the middle part of a both ends
Cylinder, the end lateral wall that the through-hole of the cylinder one end crosses bearing I and fixation cutter head are rotatablely connected, the other end by bearing II with
Rod portion rotation connection, and it is provided with inner seal ring and exterior seal ring in the two sides of bearing I and bearing II, to make cylinder
Inside forms seal chamber, and a cooling duct is provided on the side wall of cylinder, is injected by the cooling duct into seal chamber cold
But liquid is provided with several cooling holes parallel with wherein axis direction on fixation cutter head, and these cooling holes penetrate through seal chamber
With the bottom surface of installation countersink, drill bit is carried out so that in bore operation, the coolant liquid in seal chamber is flowed out by these cooling holes
It is cooling.
A kind of preferred embodiment of the utility model, which is that the fixation cutter head is equipped on the bottom surface of countersink, is provided with one
Arc blowpit, which is located at the front of countersink rotation direction, and is arranged close to the side of countersink, arc blowpit
One end be connected to bit head, the other end is penetrated through to the outer edge of fixation cutter head.
Another preferred embodiment of the utility model is that the bottom surface that the fixation cutter head is equipped with countersink is from edge
To the tapered surface of intermediate, inclined, and the extending direction of tapered surface cone point is towards the end of bit head；
In the utility model, cooling hole wound drill bit part cloth.
Another preferred embodiment of the utility model is, the cooling duct is L shape, and it is towards cylinder lateral wall
One end has internal screw thread, so that it be made to be connected through a screw thread with coolant inlet pipe.
The utility model compared with prior art, has the following beneficial effects:
1) the utility model utilizes fixation cutter head by countersink in conjunction with drill bit, realizes and synchronously completes through-hole and chamfering work
Industry improves the efficiency of drilling without looking for hole center when tool changing back and forth and chamfering；
2) the utility model is on fixation cutter head by opening up several cooling holes, and on these cooling holes and fixation cutter head
The rotary joint connection being equipped with, by injecting coolant liquid in the seal chamber into rotary joint, then coolant liquid passes through cooling hole
Outflow cools down drill bit, to solve heating problem of the drill bit when working long hours；
3) arc blowpit is arranged by the side of the countersink on fixation cutter head in the utility model, to make chamfering operation
When, facilitate waste material can be from the arc blowpit removal.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the connection sectional schematic diagram of rotary joint and fixation cutter head；
Appended drawing reference: 1, bit head, 2, fixation cutter head, 201, cooling hole, 3, rod portion, 4, countersink, 5, rotary joint,
501, cooling duct, 502, seal chamber, 503, bearing I, 504, bearing II, 505, inner seal ring, 506, exterior seal ring, 6, arc
Blowpit.
Specific embodiment
The embodiment of the utility model is further elaborated combined with specific embodiments below.
Embodiment 1
As illustrated in fig. 1 and 2, a kind of drill bit synchronously completing through-hole and chamfering operation, 1 He of bit head including integral structure
The rod portion 3 being fixed with drilling machine, and bit head 1 and 3 junction of rod portion are provided with fixation cutter head 2,2 direction of fixation cutter head
The countersink 4 for chamfering is fixed with by fastening bolt on the bottom surface of bit head 1, the fixation cutter head 2 is towards the one of rod portion 3
End is provided with rotary joint 5, which includes the cylinder in the middle part of a both ends with through-hole, the through-hole mistake of the cylinder one end
The end lateral wall of bearing I 503 and fixation cutter head 2 is rotatablely connected, and the other end is rotatablely connected by bearing II 504 and rod portion 3,
And it is provided with inner seal ring 505 and exterior seal ring 506 in the two sides of bearing I 503 and bearing II 504, to make the interior of cylinder
Portion forms seal chamber 502, and the inner seal ring 505 and exterior seal ring 506 refer to, in bearing two sides close to seal chamber 502
Sealing ring is inner seal ring, and the sealing ring in bearing towards the side outside cylinder is exterior seal ring, the two sealing rings
Using the sealing ring of existing O-ring seal or other forms；It is provided with a cooling duct 501 on the side wall of cylinder, leads to
It crosses the cooling duct 501 and injects coolant liquid into seal chamber 502, be provided on fixation cutter head 2 several with wherein axis direction
Parallel cooling hole 201, and these cooling holes 201 perforation seal chamber 502 and the bottom surface for installing countersink 4, in bore operation,
Coolant liquid in seal chamber 502 cools down drill bit by the outflow of these cooling holes 201.
The above are the basic embodiments of the utility model, can be further optimized, improve and limit on the basis of above
It is fixed, to obtain following several preferred embodiments:
Embodiment 2
The present embodiment is the further improvement to countersink 4 and fixation cutter head 2 on the basis of embodiment 1, thus make its
When carrying out chamfering operation, convenient for discharge iron filings, the fixation cutter head 2, which is equipped on the bottom surface of countersink 4, is provided with an arc discharging
Slot 6, which is located at the front of 4 rotation direction of countersink, and is arranged close to the side of countersink 4, arc blowpit 6
One end is connected to bit head 1, and the other end is penetrated through to the outer edge of fixation cutter head 2.
Embodiment 3
The present embodiment is to further limit on the basis of embodiment 1 to 2 bottom shape of fixation cutter head, this shape
Fixation cutter head can be convenient for chamfering operation, and the fixation cutter head 2 is equipped with the bottom surface of countersink 4 as the cone from edge to intermediate, inclined
Shape face, and the extending direction of tapered surface cone point is towards the end of bit head 1.
Embodiment 4
The present embodiment is to further limit on the basis of embodiment 1 to cooling hole 201 in fixation cutter head 2, described cold
But 201 wound drill bit portion 1 of hole is distributed.Such as cooling hole 201 divides and is uniformly distributed for eight groups of centers around fixation cutter head 2, every group
It is 2-3 hole, and these holes are located in same radius, and the center apart from fixation cutter head 2 is gradually increased.
Embodiment 5
The present embodiment is to further limit on the basis of embodiment 1 to 501 structure of cooling duct, is convenient for cooling duct
501 with the connection of external coolant liquid delivery pipe, the cooling duct 501 is L shape, and its have towards one end of cylinder lateral wall it is interior
Screw thread, so that it be made to be connected through a screw thread with coolant inlet pipe.
In the above various embodiments of the utility model, the fixation cutter head 2 can be solid using removablies such as bolts
It is scheduled on 3 junction of bit head 1 and rod portion, consequently facilitating removing countersink as needed.
Cooling hole 201 in the utility model on fixation cutter head 2 is preferably provided to inclined, i.e. one end and seal chamber 502
Connection, the other end are connected to the outer wall of bit head 1 for running through fixation cutter head 2, thus enable coolant liquid directly to bit head 1 into
Row cooling.
The utility model is when the through-hole of processing chamfer, first by the cooling in coolant liquid delivery pipe and rotary joint 5
Channel 501 is connected to, and is then drilled through hole with bit head 1, then fixation cutter head 2 is made to leave workpiece surface suitable distance, and iron is convenient for
Bits discharge, when hole is drilled, rod portion 3 is moved down, and allows the inner ring in hole on the blade contact workpiece of the countersink 4 on fixation cutter head 2,
Start chamfering operation；In boring procedure, according to the heat condition of bit head 1, on demand by coolant liquid delivery pipe and
Cooling duct 501 is passed through coolant liquid in the seal chamber 502 into rotary joint 5, these coolant liquids pass through on fixation cutter head 2 in turn
Cooling hole 201 flow out to drilling nearby or drill bit on, to be cooled down to drill bit.
Claims (5)
1. a kind of drill bit for synchronously completing through-hole and chamfering operation, bit head (1) including integral structure and consolidated with drilling machine
Fixed rod portion (3), and bit head (1) and rod portion (3) junction are provided with fixation cutter head (2), fixation cutter head (2) direction is bored
The countersink (4) for chamfering is fixed with by fastening bolt on the bottom surface on head (1), it is characterised in that: the fixation cutter head (2)
One end of rod portion (3) is provided with rotary joint (5), which includes the cylinder in the middle part of a both ends with through-hole
Body, the through-hole of the cylinder one end crosses bearing I (503) and the end lateral wall of fixation cutter head (2) is rotatablely connected, and the other end passes through axis
It holds II (504) and rod portion (3) is rotatablely connected, and be provided with interior sealing in the two sides of bearing I (503) and bearing II (504)
(505) and exterior seal ring (506) are enclosed, so that the inside of cylinder be made to form seal chamber (502), is provided with one on the side wall of cylinder
Cooling duct (501) is injected coolant liquid into seal chamber (502) by the cooling duct (501), is set on fixation cutter head (2)
It is equipped with several cooling holes parallel with wherein axis direction (201), and these cooling holes (201) perforation seal chamber (502) and peace
The bottom surface of countersink (4) is filled, in bore operation, the coolant liquid in seal chamber (502) passes through the outflow pair of these cooling holes (201)
Drill bit is cooled down.
2. a kind of drill bit for synchronously completing through-hole and chamfering operation according to claim 1, it is characterised in that: the fixation
Cutterhead (2), which is equipped on the bottom surface of countersink (4), is provided with an arc blowpit (6), which is located at countersink (4)
The front of rotation direction, and be arranged close to the side of countersink (4), one end of arc blowpit (6) is connected to bit head (1), separately
One end is penetrated through to the outer edge of fixation cutter head (2).
3. a kind of drill bit for synchronously completing through-hole and chamfering operation according to claim 1, it is characterised in that: the fixation
Cutterhead (2) is equipped with the bottom surface of countersink (4) as the tapered surface from edge to intermediate, inclined.
4. a kind of drill bit for synchronously completing through-hole and chamfering operation according to claim 1, it is characterised in that: the cooling
Hole (201) wound drill bit portion (1) distribution.
5. a kind of drill bit for synchronously completing through-hole and chamfering operation according to claim 1, it is characterised in that: the cooling
Channel (501) is L shape, and it has internal screw thread towards one end of cylinder lateral wall, so that it be made to pass through spiral shell with coolant inlet pipe
Line connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822043248.2U CN209157240U (en) | 2018-12-06 | 2018-12-06 | A kind of drill bit synchronously completing through-hole and chamfering operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822043248.2U CN209157240U (en) | 2018-12-06 | 2018-12-06 | A kind of drill bit synchronously completing through-hole and chamfering operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209157240U true CN209157240U (en) | 2019-07-26 |
Family
ID=67342534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822043248.2U Expired - Fee Related CN209157240U (en) | 2018-12-06 | 2018-12-06 | A kind of drill bit synchronously completing through-hole and chamfering operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209157240U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355887A (en) * | 2019-07-29 | 2019-10-22 | 河南理工大学 | Ultrasonic hot-charging knife handle system with oil mist self-lubricating cooling function |
| CN111347088A (en) * | 2020-03-18 | 2020-06-30 | 东莞市闻誉实业有限公司 | Drill bit structure, manufacturing method of drill bit body and drilling equipment |
| CN113319591A (en) * | 2021-07-14 | 2021-08-31 | 杭州集智机电股份有限公司 | Self-adaptive chamfering mechanism for dynamic balance equipment |
| CN113427053A (en) * | 2021-06-01 | 2021-09-24 | 东台升华工具有限公司 | Drilling and milling system with self-cooling drill bit |
-
2018
- 2018-12-06 CN CN201822043248.2U patent/CN209157240U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110355887A (en) * | 2019-07-29 | 2019-10-22 | 河南理工大学 | Ultrasonic hot-charging knife handle system with oil mist self-lubricating cooling function |
| CN111347088A (en) * | 2020-03-18 | 2020-06-30 | 东莞市闻誉实业有限公司 | Drill bit structure, manufacturing method of drill bit body and drilling equipment |
| CN111347088B (en) * | 2020-03-18 | 2021-08-20 | 东莞市闻誉实业有限公司 | Drill bit structure and drilling equipment |
| CN113427053A (en) * | 2021-06-01 | 2021-09-24 | 东台升华工具有限公司 | Drilling and milling system with self-cooling drill bit |
| CN113319591A (en) * | 2021-07-14 | 2021-08-31 | 杭州集智机电股份有限公司 | Self-adaptive chamfering mechanism for dynamic balance equipment |
| CN113319591B (en) * | 2021-07-14 | 2024-05-28 | 杭州集智机电股份有限公司 | Self-adaptive chamfering mechanism for dynamic balance equipment |
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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: 20190726 Termination date: 20201206 |