CN208556094U - A kind of inserted-blade type hinge drill bit - Google Patents
A kind of inserted-blade type hinge drill bit Download PDFInfo
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- CN208556094U CN208556094U CN201821201849.5U CN201821201849U CN208556094U CN 208556094 U CN208556094 U CN 208556094U CN 201821201849 U CN201821201849 U CN 201821201849U CN 208556094 U CN208556094 U CN 208556094U
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- clamping part
- drill bit
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- blade type
- chisel
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Abstract
The utility model provides a kind of inserted-blade type hinge drill bit, it is related to field of machining, it includes clamping part and the cutting portion positioned at clamping part one end, it is in 180 ° of chisel edges being distributed that cutting portion, which includes with the locating tip of clamping part coaxial arrangement and around locating tip, the cutting edge of chisel edge is staggeredly equipped with several points along the cutting edge of chisel edge and cuts slot perpendicular to the axis of clamping part.The side sword parallel with clamping part axis is provided on the lateral wall of chisel edge, the sword empty avoiding relief angle when being provided on sword, the cutting edge of side sword is along clamping part axis direction between locating tip and the cutting edge of chisel edge.Solve the problems, such as that hinge bit life is short in the prior art and processed hole wall surface is ropy.
Description
Technical field
The utility model relates to field of machining, more particularly to a kind of inserted-blade type hinge drill bit.
Background technique
In mechanical processing process, drilling is a kind of common processing technology.For simple and a small amount of drilling, can use
Hand-held drilling machine drills, but for a large amount of drilling processing, needs to drill using drilling machine.Drilling machine drilling needs to use
To drill bit, the drill bit for specially processing hinge hole is known as hinge drill bit.Hinge drill bit in the prior art is due to its processing resistance
Power is big, causes the hole wall surface for being processed hole of poor quality, and be easily damaged drill bit, keeps bit life low, increase and be processed into
This.
Utility model content
For the above problem in the prior art, the utility model provides a kind of inserted-blade type hinge drill bit, solves existing
There is in technology hinge bit life short and the processed ropy problem of hole wall surface.
In order to achieve the above object of the invention, the technical solution adopted in the utility model is as follows:
There is provided a kind of inserted-blade type hinge drill bit comprising clamping part and the cutting portion positioned at clamping part one end, cutting portion packet
The chisel edges with the locating tip of clamping part coaxial arrangement and around locating tip in 180 ° of distributions are included, the cutting edge of chisel edge is perpendicular to clamping part
Axis, several points are staggeredly equipped with along the cutting edge of chisel edge and cuts slot.
The side sword parallel with clamping part axis is provided on the lateral wall of chisel edge, when being provided on sword after sword empty avoiding
Angle, the cutting edge of side sword is along clamping part axis direction between locating tip and the cutting edge of chisel edge.
Further, clamping part is relatively set with clamping platform far from one end of cutting portion.Clamping part is cylinder, at it
The opposite two sides of external cylindrical surface process two platforms, facilitate the clamping of lathe, increase active area, press from both sides drill bit securely
It is held on lathe, increases the reliability and safety of drilling machine processing.
Further, clamping part is machined with chamfering far from the end of cutting portion.The chamfering of clamping part end can be convenient brill
The clamping of head, is smoothly encased on lathe conducive to clamping part.And chamfering can remove the sharp parts in clamping part shape, make
Shape is rounder and more smooth, avoids scratching operator.
Further, the reinforcement handle that outer diameter is greater than clamping part outer diameter is coaxially arranged between clamping part and cutting portion.Reinforce
Handle increases the intensity of this drill bit, prevents excessive this drill bit that fractures of cutting force when the material big to hardness is processed.
Further, tapering transition section is provided between clamping part and reinforcement handle.Tapering transition section can prevent outer diameter not
Stress is generated between same clamping part and reinforcement handle to concentrate, and influences the intensity of this drill bit.
Further, being provided on chisel edge cutting edge with clamping part axis is in 7 °~30 ° of anterior angle.The anterior angle of this angle can
Facilitate the cutting edge of chisel edge to enter workpiece surface, reduce resistance to the maximum extent, to reduce the abrasion to drill bit.
The utility model has the following beneficial effects: keeping boring positioning accurate in bit cutting part setting locating tip, increase
The precision of hole machined；In drilling processing, the cutting edge of side sword first touches workpiece than chisel edge, the material that workpiece surface will be removed
After material is separated with workpiece, chisel edge removes material again, is born by the processing that side sword reduces chisel edge, reduces what chisel edge was subject to
Cutting force, to improve the service life of chisel edge.Slot is cut in dividing for being staggered on chisel edge, can in time be cut chisel edge
Clast discharge damages surface to be machined and the drill bit that fractures after avoiding clast congestion, further improves the use of this drill bit
Service life.
Detailed description of the invention
Fig. 1 is the perspective view of inserted-blade type hinge drill bit.
Fig. 2 is the main view of inserted-blade type hinge drill bit.
Fig. 3 is the top view of inserted-blade type hinge drill bit.
Fig. 4 is the bottom view of inserted-blade type hinge drill bit.
Wherein, 1, cutting portion；11, locating tip；12, chisel edge；121, divide and cut slot；13, Bian Ren；131, side sword empty avoiding relief angle；
2, clamping part；21, clamping platform；3, reinforce handle；31, tapering transition section.
Specific embodiment
Specific embodiment of the present utility model is described below, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all utilize the innovation and creation of the utility model design in the column of protection.
As shown in Figure 1 to 4, which includes clamping part 2 and the cutting portion 1 positioned at 2 one end of clamping part.
Clamping part 2 is used to for this drill bit being clamped in lathe, and lathe drives drilling bit high-speed rotary, and the cutting portion 1 on drill bit is to processed
Workpiece is removed material processing.
Clamping part 2 is cylinder, is relatively set with clamping platform 21 far from one end of cutting portion 1 in clamping part 2.It clamps flat
Platform 21 can facilitate the clamping of lathe for increasing contact area when clamping machine tool drill bit by Milling Process.The end of clamping part 2
Burr is removed by chamfering on face, and facilitates drill bit on lathe.
Be coaxially arranged between clamping part 2 and cutting portion 1 outer diameter be greater than 2 outer diameter of clamping part reinforcement handle 3, clamping part 2 with
Reinforce connecting between handle 3 by tapering transition section 31, stress caused by tapering transition section 31 can be prevented because of diameter suddenly change
It concentrates.
Cutting portion 1 includes the locating tip 11 being coaxially disposed with clamping part 2.Locating tip 11 contacts work in bit bore first
Part surface, by drilling out a very shallow aperture in workpiece surface, for prevent drill bit drilling when by cutting force after along water
Planar movement influences borehole accuracy.
Be symmetrically distributed with chisel edge 12 around 180 ° of 11 circumference of locating tip, the cutting edge of chisel edge 12 perpendicular to clamping part axis, and
The cutting edge has certain radian.It is staggeredly equipped with several points along the cutting edge of chisel edge 12 and cuts slot 121, divides and cuts slot 121 in time
The clast that ground generates chisel edge 12 is discharged, and prevents talus accumulation from generating abrasion and damage drill bit to workpiece surface.12 sword of chisel edge
It is provided on mouth with clamping part axis in 7 °~30 ° of anterior angle B, is also equipped with chisel edge empty avoiding angle C, chisel edge in the end of anterior angle B
The range of empty avoiding angle C is 5 °~35 °.
It is provided with the side sword 13 parallel with 2 axis of clamping part on the lateral wall of chisel edge 12, is provided with side sword on Bian Ren 13
Empty avoiding relief angle 131, the cutting edge of Bian Ren 13 is on clamping part axis direction between locating tip 11 and the cutting edge of chisel edge 12.At this
When bit operation, the contact workpiece surface precise positioning first of locating tip 11, lathe gives drill bit downward power, makes bit
It moves down, then 13 contact workpiece of side sword, material and other parts that workpiece surface will remove is separated, finally by
Chisel edge 12 is by hole machined to final size.
In conclusion inserted-blade type hinge drill bit is for by the booster action of side sword, alleviating adding for chisel edge when drilling
Work burden, reduces cutting resistance, increases the service life of drill bit；Be staggered point cut slot be discharged in time it is broken
Bits, improve the surface quality of processed hole wall.
Claims (6)
1. a kind of inserted-blade type hinge drill bit, including clamping part (2) and positioned at the cutting portion (1) of clamping part (2) one end, feature exists
Including with the locating tip (11) of the clamping part (2) coaxial arrangement and around the locating tip (11) in, the cutting portion (1) is in
The chisel edges (12) of 180 ° of distributions, the cutting edge of the chisel edge (12) perpendicular to the clamping part axis, along the chisel edge (12)
It is staggeredly equipped with several points on cutting edge and cuts slot (121)；
The side sword (13) parallel with the clamping part (2) axis, the side sword are provided on the lateral wall of the chisel edge (12)
(13) side sword empty avoiding relief angle (131) is provided on, it is described fixed that the cutting edge of the side sword (13) is located at along clamping part axis direction
Between position sharp (11) and the cutting edge of the chisel edge (12).
2. inserted-blade type hinge drill bit according to claim 1, which is characterized in that the clamping part (2) is far from cutting portion (1)
One end be relatively set with clamping platform (21).
3. inserted-blade type hinge drill bit according to claim 1, which is characterized in that the clamping part (2) is far from cutting portion (1)
End be machined with chamfering.
4. inserted-blade type hinge drill bit according to claim 1, which is characterized in that the clamping part (2) and cutting portion (1) it
Between be coaxially arranged with outer diameter be greater than the clamping part (2) outer diameter reinforcement handle (3).
5. inserted-blade type hinge drill bit according to claim 4, which is characterized in that the clamping part (2) and reinforce handle (3) it
Between be provided with tapering transition section (31).
6. inserted-blade type hinge drill bit according to claim 1, which is characterized in that be provided on chisel edge (12) cutting edge with
Clamping part axis is in 7 °~30 ° of anterior angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201849.5U CN208556094U (en) | 2018-07-27 | 2018-07-27 | A kind of inserted-blade type hinge drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821201849.5U CN208556094U (en) | 2018-07-27 | 2018-07-27 | A kind of inserted-blade type hinge drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208556094U true CN208556094U (en) | 2019-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821201849.5U Active CN208556094U (en) | 2018-07-27 | 2018-07-27 | A kind of inserted-blade type hinge drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208556094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774390A (en) * | 2019-11-06 | 2020-02-11 | 湖北鑫运祥科技发展有限公司 | Inserted sheet type alloy drill bit and processing method |
-
2018
- 2018-07-27 CN CN201821201849.5U patent/CN208556094U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774390A (en) * | 2019-11-06 | 2020-02-11 | 湖北鑫运祥科技发展有限公司 | Inserted sheet type alloy drill bit and processing method |
| CN110774390B (en) * | 2019-11-06 | 2023-09-29 | 湖北鑫运祥科技发展有限公司 | Insert alloy drill bit and processing method |
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Legal Events
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220902 Address after: No. 71, Zone D, Phase III, Lixing Company, Economic Development Zone, Chongzhou City, Chengdu City, Sichuan Province, 611200 Patentee after: Chengdu Priusxing Cemented Carbide Co.,Ltd. Address before: 611731 no.998 Baicao Road, high tech Zone (West District), Chengdu City, Sichuan Province Patentee before: CHENGDU BANGPU CUTTING TOOLS Co.,Ltd. |