CN206047174U - It is cold in a kind of Integral alloy can bit change - Google Patents
It is cold in a kind of Integral alloy can bit change Download PDFInfo
- Publication number
- CN206047174U CN206047174U CN201620885663.0U CN201620885663U CN206047174U CN 206047174 U CN206047174 U CN 206047174U CN 201620885663 U CN201620885663 U CN 201620885663U CN 206047174 U CN206047174 U CN 206047174U
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- China
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- cutter hub
- pin
- hole
- knife bar
- drill bit
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Abstract
The utility model discloses cold in a kind of Integral alloy can bit change，It is related to mechanical field，Including drill bit、Cutter hub and knife bar，Double-head inner thread hole is provided with the cutter hub axle center and dowel screw is threaded with，Cutter hub is connected with drill bit by dowel screw，U-shaped keyway bonded with knife bar is provided with the outside of the cutter hub，The first pin-and-hole through cutter hub is additionally provided with the cutter hub，Knife bar is provided with the second pin-and-hole coordinated with the first pin-and-hole，First pin-and-hole and the second pin-and-hole are positioned by pin，Connection of this utility model using double-head inner thread form and cutter hub，Clamping is simple，As long as dowel screw is screwed with drill bit and cutter hub，Ensure drill bit rake face and cutter hub relative misalignment，When so drill bit is processed, cutting force reduces，Greatly improve cutter life，Cutter hub is connected with knife bar keyway using U-shaped key-shaped formula，It is equipped with alignment pin and trip bolt，Available effect lifts cutter clamping steadiness.
Description
Technical field
This utility model is related to mechanical field, and in particular to it is cold in a kind of Integral alloy can bit change.
Background technology
Interior cooling drill bit is a kind of machine tools for being suitable for deep hole machining, has 1 ~ 2 to lead to from shank to cutting edge
Hole, passes through compressed air, oil or cutting fluid, plays cooling cutter and workpiece, and wash away chip, be particularly suitable for deep hole and add
Work.At present, such product be mostly a series of different-diameters and it is different types of can bit change, the use cost performance of cutter is high to be lacked
Sunken long the production cycle, excessively standardization. Hardmetal materials female thread cannot be processed, and product renewing is slow.
Chinese Patent Application No. discloses a kind of inner-cooled machine folder large-diameter borehole device for CN 201320157259.8,
It is characterized in that being made up of drill-bit installing seat, taper-shank drill body, warter connection, high-speed steel cutter head, fixing screws.Drill bit is installed
Seat, taper-shank drill body are arranged in the taper hole of drill-bit installing seat；Warter connection is arranged on taper-shank drill body；High-speed steel cutter head
It is fixed in the groove of taper-shank drill body；Fixing screws are fixed on high-speed steel cutter head on taper-shank drill body, constitute inner-cooled machine
Folder large-diameter borehole device.Although said apparatus can carry out certain boring work, still do not solve the above problems.
The content of the invention
The purpose of this utility model be provide in a kind of Integral alloy it is cold can bit change, to solve to cause in prior art
Drawbacks described above.
In a kind of Integral alloy it is cold can bit change, including drill bit, cutter hub and knife bar are provided with double end at the cutter hub axle center
Screwed hole is simultaneously threaded with dowel screw, and cutter hub is connected with drill bit by dowel screw, and U-shaped key is provided with the outside of the cutter hub
Groove is simultaneously bonded with knife bar, and the first pin-and-hole through cutter hub is additionally provided with the cutter hub, and knife bar is provided with and is coordinated with the first pin-and-hole
The second pin-and-hole, the first pin-and-hole and the second pin-and-hole are positioned by pin.
Preferably, first pin-and-hole has two, and is symmetrical arranged.
Preferably, the knife bar is provided with chip area.
Preferably, the knife bar periphery of the end of the chip area is provided with inclined step.
Preferably, the external diameter of the cutter hub and the external diameter of knife bar are equal in magnitude.
The utility model has the advantage of：
1st, using the connection of double-head inner thread form and cutter hub, clamping is simple, convenient and swift to knife, reduces cutting resistance,
Improve service life；
2nd, cutter hub is connected with knife bar keyway using U-shaped key-shaped formula, is broken through traditional terminal link, flat key connected mode, is reduced connection
Between fit clearance, make cutter clamping more firm；
3rd, every kind of cutter hub, knife bar can match somebody with somebody different type drill bit, and cutter hub versatility is higher, directly reduce cutter use cost.
Description of the drawings
Fig. 1 be in a kind of Integral alloy described in the utility model it is cold can bit change structural representation.
Fig. 2 be in a kind of Integral alloy described in the utility model it is cold can in bit change drill bit structural representation.
Fig. 3 be in a kind of Integral alloy described in the utility model it is cold can in bit change cutter hub structural representation.
Right views of the Fig. 4 for Fig. 3.
Wherein：1-drill bit, 2-cutter hub, 3-knife bar, 4-double-head inner thread hole, 5-dowel screw, 6-U-shaped keyway,
7-the first pin-and-hole, the 8-the second pin-and-hole, 9-pin, 10-chip area, 11-step.
Specific embodiment
Technological means, creation characteristic, reached purpose and effect to realize this utility model is easy to understand, below
With reference to specific embodiment, this utility model is expanded on further.
As shown in Figures 1 to 4, in a kind of Integral alloy it is cold can bit change, including drill bit 1, cutter hub 2 and knife bar 3, the brill
1 is specially cold drill bit 1 in a kind of, is provided with double-head inner thread hole 4 and is threaded with dowel screw 5 at 2 axle center of the cutter hub,
Cutter hub 2 is connected with drill bit 1 by dowel screw 5, and the outside of the cutter hub 2 is provided with U-shaped keyway 6 bonded with knife bar 3, described
It is additionally provided with the first pin-and-hole 7 through cutter hub 2 on cutter hub 2, knife bar 3 is provided with the second pin-and-hole 8 coordinated with the first pin-and-hole 7, first
Pin-and-hole 7 is positioned by pin 9 with the second pin-and-hole 8.
In the present embodiment, first pin-and-hole 7 has two, and is symmetrical arranged, and improves the stability of connection.
In the present embodiment, the knife bar 3 is provided with chip area 10, and the knife bar 3 of the end of the chip area 10 is peripheral
The structure design for being provided with inclined step 11, chip area 10 and step 11 can facilitate the discharge of chip, it is to avoid pollution knife bar 3 is last
End.
Additionally, the external diameter of the cutter hub 2 is equal in magnitude with the external diameter of knife bar 3.
Based on above-mentioned, connection of this utility model using double-head inner thread form and cutter hub 2, clamping are simple, as long as will be double
Head screw is screwed with drill bit 1 and cutter hub 2, it is ensured that 1 rake face of drill bit and 2 relative misalignment of cutter hub, cutting force when such drill bit 1 is processed
Reduce, greatly improve cutter life, cutter hub 2 is connected with 3 keyway of knife bar using U-shaped key-shaped formula, is equipped with alignment pin and fastening
Screw, can lift cutter clamping steadiness with effect.
As known by the technical knowledge, this utility model can be by other essence without departing from its spirit or the reality of essential feature
Apply scheme to realize.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only
's.It is all in the range of this utility model or in the change being equal in the range of this utility model by this utility model bag
Contain.
Claims (5)
1. cold in a kind of Integral alloy can bit change, it is characterised in that including drill bit, cutter hub and knife bar, at the cutter hub axle center
It is provided with double-head inner thread hole and is threaded with dowel screw, cutter hub is connected with drill bit by dowel screw, outside the cutter hub
Side is provided with U-shaped keyway bonded with knife bar, and the first pin-and-hole through cutter hub is additionally provided with the cutter hub, and knife bar is provided with and
The second pin-and-hole that one pin-and-hole coordinates, the first pin-and-hole and the second pin-and-hole are positioned by pin.
2. cold in a kind of Integral alloy according to claim 1 can bit change, it is characterised in that：First pin-and-hole has two
It is individual, and be symmetrical arranged.
3. cold in a kind of Integral alloy according to claim 2 can bit change, it is characterised in that：The knife bar is provided with row
Bits groove.
4. cold in a kind of Integral alloy according to claim 3 can bit change, it is characterised in that：The end of the chip area
The knife bar periphery at place is provided with inclined step.
5. cold in a kind of Integral alloy according to claim 1 can bit change, it is characterised in that：The external diameter of the cutter hub with
The external diameter of knife bar is equal in magnitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620885663.0U CN206047174U (en) | 2016-08-16 | 2016-08-16 | It is cold in a kind of Integral alloy can bit change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620885663.0U CN206047174U (en) | 2016-08-16 | 2016-08-16 | It is cold in a kind of Integral alloy can bit change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206047174U true CN206047174U (en) | 2017-03-29 |
Family
ID=58380511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620885663.0U Active CN206047174U (en) | 2016-08-16 | 2016-08-16 | It is cold in a kind of Integral alloy can bit change |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206047174U (en) |
-
2016
- 2016-08-16 CN CN201620885663.0U patent/CN206047174U/en active Active
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