CN207756972U - A kind of brill for taper hole machined expands chamfering one fluted drill - Google Patents
A kind of brill for taper hole machined expands chamfering one fluted drill Download PDFInfo
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- CN207756972U CN207756972U CN201820089875.7U CN201820089875U CN207756972U CN 207756972 U CN207756972 U CN 207756972U CN 201820089875 U CN201820089875 U CN 201820089875U CN 207756972 U CN207756972 U CN 207756972U
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- taper
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- brill
- hole machined
- drill
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Abstract
The utility model provides a kind of brill expansion chamfering one fluted drill for taper hole machined, it can not only solve the problem of that efficiency existing for traditional taper hole machined is low, of high cost while can also solve existing brill and expand integrated drill bit not to be suitable for plastic material taper hole machined because of poor rigidity.It includes drill body part and the shank body part of concentric one, shank body part is a cylinder, drill body part is ladder circle cylinder, and drill body part includes drilling portion and taper reamer, and taper reamer periphery offers chip space and chip space forms knife spine in taper reamer periphery；It is linked together between drilling portion and taper reamer by the way that even mill mode is concentric, taper reamer and the junction of shank body part are equipped with chamfered section.
Description
Technical field
The utility model is related to metal cutting tool technical field, specially a kind of brill for taper hole machined expands chamfering
Integrated fluted drill.
Background technology
The processing of traditional tapered hole is that subdrilling bottom outlet uses cornish bit to carry out taper reaming again, finally uses rose reamer interpolation
Milling orifice chamfer, the tool magazine warehouse compartment that this traditional processing method does not only take up is more, and processing efficiency is low, of high cost, can not
Meet the requirement of modern industry highly-efficient processing.
For the taper hole machined of plastic material, compared by plastic material self character and the taper cornish bit conical surface (sword)
Long influence, it cuts flaky without easy chip breaking when carrying out taper hole machined using above-mentioned conventional method, to be formed
Long coil chip, and then cause lathe to load larger, cutter and block, burn out the failures such as motor.
To solve the above-mentioned problems, occurs a kind of brill expansion that drill bit and taper cornish bit are combined into one in the art
Integrated drill bit, is shown in Fig. 1, and bit part A and taper reaming part C is linked into an integrated entity by the way that neck portion B is concentric, but due to adding
Equipped with neck to make an overall length for entire cutter lengthen, the rigidity for resulting in cutter is deteriorated, therefore can be only applied to such as aluminium alloy
This rigid requirements of material are not very high occasions, and can not be applied to the taper hole machined of the higher rigid components of rigid requirements
In, the scope of application is small；Simultaneously because being provided with neck, neck is still located in drilling after bit part has drilled through part,
Therefore secondary centering is needed when taper reamer is cut into drilling, this can not only increase cutter load but also inevitably occur
The deviation of secondary positioning centering, influences machining accuracy afterwards.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of brill expansion chamfering one fluted drill for taper hole machined,
It can not only solve the problems, such as that efficiency existing for traditional taper hole machined is low, of high cost, while can also solve existing brill and expand one
Drill bit is not suitable for the problem of plastic material taper hole machined because of poor rigidity.
Its technical solution is that a kind of brill for taper hole machined expands chamfering one fluted drill comprising concentric one
Drill body part and shank body part, the shank body part are a cylinder, and the drill body part is ladder circle cylinder, the drill body portion
It includes drilling portion and taper reamer to divide, and taper reamer periphery offers chip space and the chip space is in the taper
Reamer periphery forms knife spine, it is characterised in that：It is linked as between the drilling portion and taper reamer by the way that even mill mode is concentric
One, the taper reamer and the junction of shank body part are equipped with chamfered section.
Further, several forced chip-cutting slots are provided in the axial direction on the peripheral surface of the taper reamer.
Further, the forced chip-cutting slot is V-shaped.
Further, the both sides groove face of the V-shaped forced chip-cutting slot is connected in slot bottom position in R shape arc transitions.
Further, it is in 90 degree of angles between the both sides groove face of the V-shaped forced chip-cutting slot.
The beneficial effects of the utility model are：It is linked as between its drilling portion and taper reamer by the way that even mill mode is concentric
On the one hand one effectively reduces entire cutter length, improves cutter rigidity, and can carry out reconditioning after cutter use, no
Only tool life and the processing to the higher steel class part of rigid requirements, the scope of application can be can be applied to
Extensively；On the other hand it is linked together due to directly concentric between drilling portion and taper reamer, thus when drilling portion drills through part
Taper reamer has cut drilling simultaneously, to effectively prevent secondary positioning centering when taper reamer reaming, therefore can have
Effect improves the machining accuracy of taper hole；Chamfered section is set between taper reamer and shank body part simultaneously, thus single feeding can
It is enough to realize drilling, the disposable processing of three processing steps of taper reaming and orifice chamfer, thus can greatly improve processing efficiency,
The cost of charp tool is reduced, reduces production cost on the whole；In addition, when the utility model one fluted drill is applied to plastic material
When cone hole machine, several forced chip-cutting slots can flaky long paper caused by cutting to taper reamer consider force disconnect to be worth doing,
To ensure that chip can smoothly be discharged；And force chip space in 90 degree V-arrangement angle and slot bottom be R shape arc transitions, energy
Enough it effectively prevent stress concentration so that long paper bits are more easy to cut off and are more easy to be discharged.
To sum up, a kind of brill for taper hole machined of the utility model expands chamfering one fluted drill, by drilling portion and cone
Degree reamer is bound directly integrally by way of even grinding, to effectively improve cutter rigidity, tool life, and
And chamfered section is provided between taper reamer and shank body part so that the utility model can disposably complete drilling, taper
Reaming and the molding of orifice chamfer, can greatly improve processing efficiency；The forced chip-cutting being arranged simultaneously by taper reamer
Slot is effectively improved chip breaking switch when reaming processing, so as to thoroughly solve from aluminium alloy to steel part or even low nickel is stainless
The cone hole machine of the toughness material of steel class effectively increases the scope of application of cutter, further reduces the cost of charp tool.
Description of the drawings
Fig. 1 is the structural schematic diagram of the existing drill bit for boring and expanding one；
Fig. 2 is a kind of structural schematic diagram expanding chamfering one fluted drill for the brill of taper hole machined of the utility model；
Fig. 3 is the right side structural representation of Fig. 2；
Fig. 4 is the partial enlargement structural representation at I in Fig. 2.
Reference numeral：10- drill bodies part, 11- drillings portion, 12- taper reamers, 13- chip spaces, 14- knife spines, 15- ranks
Terraced root is even ground, 16- forced chip-cutting slots, 17-R shape arc transitions, 20- shank bodies part, 30- chamfered sections, A- bit parts, B- necks
Portion, C- taper reamings part.
Specific implementation mode
See that Fig. 2, a kind of brill for taper hole machined of the utility model expand chamfering one fluted drill comprising one with one heart
Drill body part 10 and shank body part 20, shank body part 20 is a cylinder, and drill body part 10 is ladder circle cylinder, drill body part
10 include drilling portion 11 and taper reamer 12, and 12 periphery of taper reamer offers chip space 13 and chip space 13 expands in taper
12 periphery of hole portion forms knife spine 14, is linked together between drilling portion 11 and taper reamer 12 by the way that even mill mode is concentric, in Fig. 2
15 be ladder root even mill signal, and chamfered section 30 is arranged in taper reamer 12 and the junction of shank body part 20.
See Fig. 2 and Fig. 4, several forced chip-cutting slots 16 are provided in the axial direction on the peripheral surface of taper reamer 12；It forces disconnected
Bits slot 16 is V-shaped, and the both sides groove face of V-shaped forced chip-cutting slot 16 is connected in slot bottom position in R shapes arc transition 17, V-shaped
Forced chip-cutting slot 16 both sides groove face between so that chip is more easy to by force thus, it is possible to effectively prevent stress concentration in 90 degree of angles
System disconnects, is easy to be discharged.
Chamfering one fluted drill is expanded to plastic material product using a kind of brill for taper hole machined of the utility model
When carrying out taper hole machined, drilling portion 11 first cuts workpiece removal surplus, and then taper reamer 12 directly participates in cutting, taper
The laminar long paper bits caused by cutting of reamer 12 are forced to disconnect short fines in a strip shape by several forced chip-cutting slots, in a strip shape
Short fines is then discharged along chip space 13；After taper reaming processing in place, then chamfered section 30 directly carries out chamfered to aperture,
To complete the drilling of tapered hole, reaming, chamfering are integrally machined, and are substantially increased processing efficiency, are reduced production cost.
The specific implementation of the utility model is described in detail above, but content be only the utility model create compared with
Good embodiment should not be construed as limiting the practical range of the utility model creation.All created according to the utility model is applied
All the changes and improvements made by range etc. should all still belong within the patent covering scope of the utility model.
Claims (5)
1. a kind of brill for taper hole machined expands chamfering one fluted drill comprising the drill body part (10) of one and handle with one heart
Body portion (20), the shank body part (20) are a cylinder, and the drill body part (10) is ladder circle cylinder, the drill body portion
Point (10) include drilling portion (11) and taper reamer (12), taper reamer (12) periphery offer chip space (13) and
The chip space (13) forms knife spine (14) in taper reamer (12) periphery, it is characterised in that：The drilling portion (11)
It is linked together between taper reamer (12) by the way that even mill mode is concentric, the taper reamer (12) and shank body part (20)
Junction be equipped with chamfered section (30).
2. a kind of brill for taper hole machined according to claim 1 expands chamfering one fluted drill, it is characterised in that：Institute
It states and is provided in the axial direction with several forced chip-cutting slots (16) on the peripheral surface of taper reamer (12).
3. a kind of brill for taper hole machined according to claim 2 expands chamfering one fluted drill, it is characterised in that：Institute
It is V-shaped to state forced chip-cutting slot (16).
4. a kind of brill for taper hole machined according to claim 3 expands chamfering one fluted drill, it is characterised in that：Institute
The both sides groove face for stating V-shaped forced chip-cutting slot (16) is connected in slot bottom position in R shapes circular arc (17) transition.
5. a kind of brill for taper hole machined according to claim 4 expands chamfering one fluted drill, it is characterised in that：Institute
State between the both sides groove face of V-shaped forced chip-cutting slot (16) is in 90 degree of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820089875.7U CN207756972U (en) | 2018-01-19 | 2018-01-19 | A kind of brill for taper hole machined expands chamfering one fluted drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820089875.7U CN207756972U (en) | 2018-01-19 | 2018-01-19 | A kind of brill for taper hole machined expands chamfering one fluted drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207756972U true CN207756972U (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820089875.7U Active CN207756972U (en) | 2018-01-19 | 2018-01-19 | A kind of brill for taper hole machined expands chamfering one fluted drill |
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| CN (1) | CN207756972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161082A (en) * | 2018-01-19 | 2018-06-15 | 苏州阿诺精密切削技术有限公司 | Expand chamfering one fluted drill for the brill of taper hole machined |
| CN113814257A (en) * | 2021-08-14 | 2021-12-21 | 南京凯燕电子有限公司 | Saline water collecting device for balance ring of disassembling roller of waste washing machine and working method of saline water collecting device |
-
2018
- 2018-01-19 CN CN201820089875.7U patent/CN207756972U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161082A (en) * | 2018-01-19 | 2018-06-15 | 苏州阿诺精密切削技术有限公司 | Expand chamfering one fluted drill for the brill of taper hole machined |
| CN113814257A (en) * | 2021-08-14 | 2021-12-21 | 南京凯燕电子有限公司 | Saline water collecting device for balance ring of disassembling roller of waste washing machine and working method of saline water collecting device |
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