CN105921798A - Combined drilling tool for drilling and chamfering of double surfaces of hole - Google Patents
Combined drilling tool for drilling and chamfering of double surfaces of hole Download PDFInfo
- Publication number
- CN105921798A CN105921798A CN201610481960.3A CN201610481960A CN105921798A CN 105921798 A CN105921798 A CN 105921798A CN 201610481960 A CN201610481960 A CN 201610481960A CN 105921798 A CN105921798 A CN 105921798A
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- China
- Prior art keywords
- chamfering
- blade
- boring
- cutter hub
- hole
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/08—Drills combined with tool parts or tools for performing additional working
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2220/00—Details of turning, boring or drilling processes
- B23B2220/08—Deburring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
- B23B2251/241—Cross sections of the diameter of the drill
- B23B2251/245—Variable cross sections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a combined drilling tool for drilling and chamfering of double surfaces of a hole. The combined drilling tool comprises a knife body and a combined knife bit, wherein the combined knife bit comprises a drilling knife bit assembly and at least one chamfering knife bit assembly with a preset elastic force; the drilling knife bit assembly is arranged at the front end of the knife body; at least one step-shaped mounting groove is formed in the outer side wall of one side of the knife body; cutting edges, which are protruded out of the outer surface of the knife body by a preset height, of the chamfering knife bit assemblies are arranged in the mounting grooves matched with the cutting edges; and a preset distance is reserved between the end of each cutting edge and the bottom of the corresponding mounting groove matched with the cutting edge. By the combined drilling tool for drilling and chamfering of double surfaces of the hole, drilling and chamfering operation of the double-surface hole can be finished. Compared with the traditional processing method, the combined drilling tool for drilling and chamfering of double surfaces of the hole has the advantages that working hours are shortened, production efficiency is improved, and meanwhile, using cost and labor cost are reduced.
Description
Technical field
The present invention relates to a kind of drilling tool used in the case of machining.More specifically, the present invention relates to
And a kind of be used in the case of machining for boring and the way-type drilling unit of aperture Double-side rounding.
Background technology
Currently when processing work piece, if work piece needs holes drilled through, and two sides, hole all needs chamfering
In the case of, its processing method is typically completed by several operations, is first first to hole, then is holing
The chamfering of above that side after one-tenth, then by workpiece turn-over, and then the chamfering of that side, face of falling down.
And the major defect of Current protocols is: the processing mode that is current needs to have bore cutter simultaneously
With two cuttves of orifice chamfer cutter, high cost；Two is when hole under mouth is carried out chamfering, need by
Workpiece turn-over is processed, and when expense people also takes a lot of work, reduces production efficiency.
Summary of the invention
It is an object of the invention to solve at least the above and/or defect, and provide after at least and will say
Bright advantage.
It is a still further object of the present invention to provide a kind of for boring and the way-type drilling unit of aperture Double-side rounding,
It passes through in the front of cutter hub equipped with boring cutter head assembly, to complete holes drilled through operation, cutter hub middle part
Equipped with the chamfering cutter head assembly with elastic force of chamfering, to complete the chamfering of the top and bottom to through hole,
Its effect is to complete holes drilled through and the chamfering of aperture upper and lower surface an operation；Achieve with one
Cutter can be completed the chamfering operation in boring and two-sided aperture, for traditional processing method,
Which shorten man-hour, improve production efficiency, reduce use cost and labour cost simultaneously.
In order to realize according to object of the present invention and further advantage, it is provided that a kind of for boring and hole
The way-type drilling unit of mouth Double-side rounding, including:
Cutter hub；
Dado head, it includes holing cutter head assembly and having the least one set chamfering presetting elastic force
Cutter head assembly；
Wherein, described boring cutter head assembly is arranged on the front end of cutter hub, on the lateral wall, side of described cutter hub
It is provided with at least one step-like mounting groove；
The cutting edge of each described chamfering cutter head assembly all sets in the way of prominent cutter hub outer surface one predetermined altitude
Put in the mounting groove coordinated with it, to complete the chamfering behaviour of hole to be processed upper surface during boring
Make, and
Each described cutting edge end is respectively provided with a predeterminable range bottom the mounting groove that distance is matched therewith, with
After the chamfering of hole to be processed upper surface has operated, it is pressed in mounting groove by the pressure of hole wall, so complete
Become the chamfering operation of boring action and hole to be processed lower surface.
Preferably, wherein, described cutter hub by a curved transition sections so that cutter hub front end constitute one with
Cutter hub axis is the contraction flow region in the center of circle, to be defined hole depth by described curved transition sections.
Preferably, wherein, described chamfering cutter head assembly is with its removable with cutter hub front end distance of scalable
The mode of unloading is arranged in mounting groove, and then adapts to different drilling depths.
Preferably, wherein, described cutter hub is internally provided with and respectively leads to hole cutter head assembly and rose reamer
The cooling duct of each installation place of head assembly, and on the lateral wall of described cutter hub, also it is relatively set with spiral row
Bits groove.
Preferably, wherein, described boring cutter head assembly includes first blade crossing cutter hub center, with
And it is arranged on the second blade of cutter hub front end outer side.
Preferably, wherein, each described chamfering cutter head assembly all includes a fixture, each described fixture
Front end be provided with the 3rd blade for chamfering, each described 3rd blade is all set to be had
Two cutting edges being oppositely arranged, and described cutting edge is respectively provided with a predetermined inclination angle, to complete up and down
The chamfering operation on surface.
Preferably, wherein, each described 3rd blade all offers front chamfered groove, and described 3rd blade
Outer rim be provided with a curved portions.
Preferably, wherein, described fixture is all removeably positioned at installation by a cover plate
On the step of groove, described fixture has one bottom the installation end of the 3rd blade and is easy to the 3rd blade press-in
Rake.
Preferably, wherein, described fixture is set spring steel, and its spring rate is arranged to
500-700N, the length of described fixture is arranged to 40-90mm, and the thickness of described fixture is set
For 2-3.5mm, the height of described 3rd blade is arranged to 3-5.5mm, and described mounting groove is in order to accommodate
The groove depth of one end of three blades is arranged to 5-9mmm, and described cutting edge highlights the predetermined height of cutter hub outer surface
Degree is arranged to 1.5mm-3mm.
Preferably, wherein, described fixture is set spring steel, and its spring rate is arranged to 630N,
The length of described fixture is arranged to 80mm, and the thickness of described fixture is arranged to 3mm, and described
The height of three blades is arranged to 4.5mm, and described mounting groove is in order to accommodate the groove depth of one end of the 3rd blade
Being arranged to 4.5mmm, described cutting edge highlights the predetermined altitude of cutter hub outer surface and is arranged to 2mm.
The present invention at least includes following beneficial effect: one, the present invention passes through in the front of cutter hub equipped with brill
Hole cutter head assembly, to complete holes drilled through operation, cutter hub middle part is equipped with the elastic force that has of chamfering
Chamfering cutter head assembly, to complete the chamfering of the top and bottom to through hole, its effect is can be an operation
Complete holes drilled through and the chamfering of aperture upper and lower surface；Achieve and can complete to hole and two-sided with a cutter
The chamfering operation in aperture, for traditional processing method, which shorten man-hour, improves production
Efficiency, reduces use cost and labour cost simultaneously, have can implementation result good, workable, raw
Product efficiency is high, the effect that cost is controlled.
Its two, the present invention is designed by the mounting groove of unique texture, it is achieved that installing chamfering cutter head assembly
Time so that installation chamfering cutter head protrudes from contraction flow region except the 3rd blade, and it is respectively positioned on mounting groove in part
In, and receiving the 3rd blade and the cavity of fixture one end, the fixture of its chamfering cutter head assembly are provided
Employing spring steel is made, and to be supplied to the 3rd blade one elastic anchorage force, simultaneously facilitates its chamfering and in hole
Take in mounting groove during wall transmission pressure, it is achieved it has been threaded through the operation of lower orifice chamfer, and having can
Implementation result is good, workable effect.
Its three, the present invention in order to ensure boring and chamfering operation stability and exploitativeness while have
There is more preferable adaptability, by chamfering cutter head assembly can be configured in the way of the regulation of bore cutter rostral,
And each parameters of operating part of chamfering cutter head assembly is arranged, so that it adapts to hole depth it is
The boring of 10mm-60mm and chamfering operation, have adaptability good, good stability, workable effect
Really.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part also will
By the research of the present invention and practice are understood by the person skilled in the art.
Accompanying drawing explanation
Fig. 1 is the bowing of way-type drilling unit in one embodiment of the present of invention for boring and aperture Double-side rounding
TV structure schematic diagram；
Fig. 2 is for boring and the way-type drilling unit of aperture Double-side rounding in an alternative embodiment of the invention
Main TV structure schematic diagram；
Fig. 3 is for boring and the way-type drilling unit of aperture Double-side rounding in an alternative embodiment of the invention
Left view structural representation；
Fig. 4 is the A-A sectional structure schematic diagram in Fig. 3；
Fig. 5 is that the P in Fig. 3 is to structural representation；
Fig. 6 is for holing and in the way-type drilling unit of aperture Double-side rounding in an alternative embodiment of the invention
The main TV structure schematic diagram of chamfering cutter head assembly；
Fig. 7 is for holing and in the way-type drilling unit of aperture Double-side rounding in an alternative embodiment of the invention
The left view structural representation of chamfering cutter head assembly；
Fig. 8 is for holing and in the way-type drilling unit of aperture Double-side rounding in an alternative embodiment of the invention
The plan structure schematic diagram of chamfering cutter head assembly.
Detailed description of the invention
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art's reference
Description word can be implemented according to this.
Should be appreciated that used herein such as " have ", " comprising " and " including " term not
Allot other element one or more or the existence of a combination thereof or interpolation.
Fig. 1,4 show according to the present invention a kind of for boring and the way-type drilling unit of aperture Double-side rounding
Way of realization, including:
Cutter hub 1；
Dado head 2, it cutter head assembly 210 and have and preset at least the one of elastic force of including holing
Group chamfering cutter head assembly 220；
Cutter hub, it includes cutter hub 1 and cutter head 2, and described cutter head includes hole cutter head assembly 210 and tool
Having the least one set chamfering cutter head assembly 220 presetting elastic force, it fills on the cylindrical of cutter hub middle part
Having the chamfering cutter head assembly with elastic force, it is by having the fixture of elastic force and being welded on front side of it
The three-blade group of alloy material is closed and is formed；
Wherein, described boring cutter head assembly is arranged on the front end of cutter hub, for drilling operation, and described cutter
Be provided with at least one step-like mounting groove 11 on the lateral wall, side of body, its for provide a space with
Accommodate chamfering cutter head assembly, and then make it can pass through hole in the course of processing to carry out the chamfering in lower aperture
Operation；
The cutting edge of each described chamfering cutter head assembly all sets in the way of prominent cutter hub outer surface one predetermined altitude
Put in the mounting groove coordinated with it, to complete the chamfering behaviour of hole to be processed upper surface during boring
Make, and
Each described cutting edge end is respectively provided with a predeterminable range bottom the mounting groove that distance is matched therewith, with
After the chamfering of hole to be processed upper surface has operated, it is pressed in mounting groove by the pressure of hole wall, so complete
Become the chamfering operation of boring action and hole to be processed lower surface.Use this scheme by before cutter hub
Side is equipped with boring cutter head assembly, to complete holes drilled through operation, cutter hub middle part having equipped with chamfering
The chamfering cutter head assembly of elastic force, to complete the chamfering of the top and bottom to through hole, its effect is can be
One operation completes holes drilled through and the chamfering of aperture upper and lower surface；Achieve and can complete to bore with a cutter
The chamfering operation in hole and two-sided aperture, for traditional processing method, which shorten man-hour, carries
High production efficiency, reduces use cost and labour cost simultaneously, have can implementation result good, operable
Property strong, production efficiency is high, the benefit that cost is controlled.Further, this mode is a kind of the most real
The explanation of example, but be not limited thereto.When implementing the present invention, can fit according to user demand
When replacement and replacing.
As shown in Figure 4, in another kind of example, described cutter hub is by a curved transition sections 12 and then at cutter
Body front end constitute a contraction flow region 13 with cutter hub axis as the center of circle, with by described curved transition sections to hole
Deeply it is defined.Use this scheme by curved transition sections, the degree of depth in hole to be defined, have and can grasp
The effect that the property made is strong, simultaneously for the cutter hub that traditional two is the biggest, it has higher product
The benefit of product structural stability.Further, this mode is the explanation of a kind of preferred embodiments, but also
It is not limited to this.When implementing the present invention, suitable replacement and replacing can be carried out according to user demand.
In another kind of example, described chamfering cutter head assembly is with its removable with cutter hub front end distance of scalable
The mode of unloading is arranged in mounting groove, and then adapts to different drilling depths.Use this scheme by solid
One groove is set in locking member and cover plate, and then is adapted to not by the distance of regulation the 3rd blade with cutter hub front end
With hole depth, have can implementation result good, workable, benefit that adaptability is good.Further,
This mode is the explanation of a kind of preferred embodiments, but is not limited thereto.When implementing the present invention, can
To carry out suitable replacement and replacing according to user demand.
As Figure 1-4, in another kind of example, described cutter hub is internally provided with and respectively leads to cutter head of holing
The cooling duct 14 of each installation place of assembly and chamfering cutter head assembly, cutter hub Center have internal cooling
Hole, cooling hole exits is directly directed at blade, reduces the infringement cutting the heat produced to cutter hub, and described
Also it is relatively set with helical flute 15 on the lateral wall of cutter hub, on front side of its cutter hub, has helical flute,
Chip removal is unobstructed, it is to avoid iron filings damage cutter hub and blade.Use this scheme have can implementation result good, can
Strong operability, the benefit of good stability.Further, this mode is the explanation of a kind of preferred embodiments,
But it is not limited thereto.Implement the present invention time, can according to user demand carry out suitable replacement and
Change.
As it is shown in figure 1, in another kind of example, described boring cutter head assembly includes that one crosses cutter hub center
First blade 211, and it is arranged on the second blade 212 of cutter hub front end outer side.This scheme is used to pass through
Fill two drill plates in cutter hub front, center crossed by first blade, and second blade is according to Kong Zhi
Footpath size is arranged on outside, and each blade is pressed in the insert groove on cutter hub by screw 213, has brill
Hole is effective, the benefit that working (machining) efficiency is high.Further, this mode is saying of a kind of preferred embodiments
Bright, but be not limited thereto.When implementing the present invention, suitable replacing can be carried out according to user demand
Change and change.
As Figure 4-Figure 6, in another kind of example, each described chamfering cutter head assembly all includes a fixture
221, it is for playing a supportive role to the 3rd blade, and has a spring rate with the process at chamfering
The middle mounting groove that is pressed into smoothly, the front end of each described fixture is provided with the 3rd cutter for chamfering
Sheet 222, each described 3rd blade is all set to have two cutting edges 223 being oppositely arranged, and it is used for
Upper and lower aperture is operated, and described cutting edge is respectively provided with a predetermined inclination angle, to complete upper following table
The chamfering operation in face.Use this scheme have can implementation result good, workable, good stability
Benefit.Further, this mode is the explanation of a kind of preferred embodiments, but is not limited thereto.?
When implementing the present invention, suitable replacement and replacing can be carried out according to user demand.
As shown in Figure 6, in another kind of example, each described 3rd blade all offers front chamfered groove 224,
And the outer rim of described 3rd blade is provided with a curved portions 225.This scheme is used to open on the 3rd blade
If front chamfered groove so that chamfering is more brisk, fineness is good, and arranges circular arc on the cylindrical of the 3rd blade,
For avoiding hole wall of swiping, affect Hole Wall Roughness, there is machining accuracy high, good stability, can implement
Effective benefit.Further, this mode is the explanation of a kind of preferred embodiments, but does not limit to
In this.When implementing the present invention, suitable replacement and replacing can be carried out according to user demand.
As shown in Figure 4, in another kind of example, described fixture all by a cover plate 226 with detachably
Mode be arranged on the step of mounting groove, described fixture has one bottom the installation end of the 3rd blade
It is easy to the rake 227 of the 3rd blade press-in.The fixture in this scheme is used to fix the 3rd blade
Time, a cover plate is installed outside it, is pressed on cutter hub corresponding by screw 228 together with fixture
Mounting groove in.The effect of cover plate is the bigger external force avoiding fixture to produce when by cutting, and
The situation of turning up that causes occurs, and handle 3 is scabbled in the side being provided with national standard on rear side of cutter hub, highly versatile,
Have can implementation result good, stability is strong, cuts benefit smoothly.Further, this mode is simply
A kind of explanation of preferred embodiments, but be not limited thereto.When implementing the present invention, can be according to user
Demand carries out suitable replacement and replacing.
In another kind of example, described fixture is set spring steel, and its spring rate is arranged to
500-700N, the length of described fixture is arranged to 40-90mm, and the thickness of described fixture is set
For 2-3.5mm, the height of described 3rd blade is arranged to 3-5.5mm, and described mounting groove is in order to accommodate
The groove depth of one end of three blades is arranged to 5-9mmm, and described cutting edge highlights the predetermined height of cutter hub outer surface
Degree is arranged to 1.5mm-3mm.Using this scheme is owing to fixture can be adjusted along predetermined direction,
To adapt to the process operation in different depth hole, if but the length of fixture is oversize, and its major part is suspended,
Its stability of the 3rd blade when chamfering operates is the most inadequate, and then affects the machining accuracy of product, and is
Ensureing the stability in the 3rd blade course of processing, the spring rate of fixture is required the highest by it,
If but spring rate is too high, it is in the course of processing, cannot successfully be pressed in mounting groove,
Chamfering operation cannot be normally carried out, consolidate and invent by substantial amounts of experiment and performing creative labour, to fixing
Part, the 3rd blade, each parameter of the mounting groove degree of depth are configured, so that it is adapting to the biggest model
Enclose as complete in the range of hole depth 10mm-60mm boring and chamfering operation, have can implementation result good, can
Strong operability, adaptable benefit.Further, this mode is the explanation of a kind of preferred embodiments,
But it is not limited thereto.Implement the present invention time, can according to user demand carry out suitable replacement and
Change.
In another kind of example, described fixture is set spring steel, and its spring rate is arranged to
630N, the length of described fixture is arranged to 80mm, and the thickness of described fixture is arranged to 3mm,
The height of described 3rd blade is arranged to 4.5mm, and described mounting groove is in order to accommodate one end of the 3rd blade
Groove depth be arranged to 4.5mmm, described cutting edge highlights the predetermined altitude of cutter hub outer surface and is arranged to
2mm.Using this scheme is the optimal embodiment of one of which, to adapt to hole depth as 35mm-50mm
Boring and chamfer machining operation, having can good, the workable benefit of implementation result.Further,
This mode is the explanation of a kind of preferred embodiments, but is not limited thereto.When implementing the present invention, can
To carry out suitable replacement and replacing according to user demand.
Implementation:
Drilling tool positive direction feed, first, by the first blade and second blade of boring, by hole drill
Lead to or pierce in material to be processed；Secondly, continuing positive direction feed, at this moment, the 3rd blade is near the
The cutting edge of one blade one end will carry out chamfering operation to aperture on the upside of hole, along with the continuation feed of cutter,
3rd blade completes the chamfering to upper-side hole, simultaneously because the 3rd blade is when entering into certain degree of depth,
The design of its oblique cutting edge so that the 3rd blade is forced to receive the pressure of hole wall transmission, and then in chamfering
During be gradually compressed in hole, be designed with circular arc i.e. arc additionally, due on the 3rd blade outward flange
Portion, and the 3rd blade scratch hole wall time in hole, can be effectively prevented from, and the rotation along with cutter exists
Rotation is followed in hole；Again, continue feed with on the downside of by workpiece, so that the 3rd blade ejects, this
Time stop positive direction feeding, on rear side of opposite direction feed, the first blade, cutting edge starts to enter aperture, downside
Row chamfering, and after downside chamfering is complete, be compressed in hole again, and then exit cutter, complete brill
Hole and the operation of upper and lower both sides orifice chamfer.
Number of devices described herein and treatment scale are used to the explanation of the simplification present invention.To the present invention
For boring and the application of way-type drilling unit of aperture Double-side rounding, the modifications and variations technology to this area
It is apparent from for personnel.
Although embodiment of the present invention are disclosed as above, but it is not restricted to description and embodiment party
Listed utilization in formula.It can be applied to the various field being suitable for this practicality completely.For being familiar with ability
For the personnel in territory, it is easily achieved other amendment.Therefore without departing substantially from claim and etc. homotype
Enclosing under limited general concept, this practicality is not limited to specific details and shown here as the figure with description
Example.
Claims (10)
1. one kind is used for boring and the way-type drilling unit of aperture Double-side rounding, it is characterised in that including:
Cutter hub；
Dado head, it includes holing cutter head assembly and having the least one set chamfering presetting elastic force
Cutter head assembly；
Wherein, described boring cutter head assembly is arranged on the front end of cutter hub, on the lateral wall, side of described cutter hub
It is provided with at least one step-like mounting groove；
The cutting edge of each described chamfering cutter head assembly all sets in the way of prominent cutter hub outer surface one predetermined altitude
Put in the mounting groove coordinated with it, to complete the chamfering behaviour of hole to be processed upper surface during boring
Make, and
Each described cutting edge end is respectively provided with a predeterminable range bottom the mounting groove that distance is matched therewith, with
After the chamfering of hole to be processed upper surface has operated, it is pressed in mounting groove by the pressure of hole wall, so complete
Become the chamfering operation of boring action and hole to be processed lower surface.
2. as claimed in claim 1 for boring and the way-type drilling unit of aperture Double-side rounding, its feature exists
In, described cutter hub is by a curved transition sections and then constitutes one in cutter hub front end with cutter hub axis as the center of circle
Contraction flow region, hole depth is defined by described curved transition sections.
3. as claimed in claim 1 for boring and the way-type drilling unit of aperture Double-side rounding, its feature exists
It is arranged on installation with its removably with cutter hub front end distance of scalable in, described chamfering cutter head assembly
In groove, and then adapt to different drilling depths.
4. as claimed in claim 1 for boring and the way-type drilling unit of aperture Double-side rounding, its feature exists
In, described cutter hub is internally provided with and respectively leads to hole cutter head assembly and each installation place of chamfering cutter head assembly
Cooling duct, and on the lateral wall of described cutter hub, be also relatively set with helical flute.
5. as claimed in claim 1 for boring and the way-type drilling unit of aperture Double-side rounding, its feature exists
In, described boring cutter head assembly includes first blade crossing cutter hub center, and is arranged on cutter hub front end
Second blade in outside.
6. as claimed in claim 1 for boring and the way-type drilling unit of aperture Double-side rounding, its feature exists
In, each described chamfering cutter head assembly all includes that a fixture, the front end of each described fixture are provided with one
Individual the 3rd blade for chamfering, each described 3rd blade is all set to have two be oppositely arranged and cuts
Cut sword, and described cutting edge is respectively provided with a predetermined inclination angle, to complete the chamfering operation of upper and lower surface.
7. as claimed in claim 6 for boring and the way-type drilling unit of aperture Double-side rounding, its feature exists
In, each described 3rd blade all offers front chamfered groove, and the outer rim of described 3rd blade is provided with an arc
Shape portion.
8. as claimed in claim 6 for boring and the way-type drilling unit of aperture Double-side rounding, its feature exists
In, described fixture is all removeably positioned on the step of mounting groove by a cover plate, described
Fixture has a rake being easy to the 3rd blade press-in bottom the installation end of the 3rd blade.
9. as claimed in claim 6 for boring and the way-type drilling unit of aperture Double-side rounding, its feature exists
In, described fixture is set spring steel, and its spring rate is arranged to 500-700N, described fixing
The length of part is arranged to 40-90mm, and the thickness of described fixture is arranged to 2-3.5mm, and the described 3rd
The height of blade is arranged to 3-5.5mm, and described mounting groove is in order to accommodate the groove depth of one end of the 3rd blade
Being arranged to 5-9mm, described cutting edge highlights the predetermined altitude of cutter hub outer surface and is arranged to
1.5mm-3mm。
10. as claimed in claim 6 for boring and the way-type drilling unit of aperture Double-side rounding, its feature
Being, described fixture is set spring steel, and its spring rate is arranged to 630N, described fixture
Length be arranged to 80mm, the thickness of described fixture is arranged to 3mm, the height of described 3rd blade
Degree is arranged to 4.5mm, and described mounting groove is arranged in order to the groove depth accommodating one end of the 3rd blade
7mmm, described cutting edge highlights the predetermined altitude of cutter hub outer surface and is arranged to 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610481960.3A CN105921798B (en) | 2016-06-24 | 2016-06-24 | For drilling and the way-type drilling unit of aperture Double-side rounding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610481960.3A CN105921798B (en) | 2016-06-24 | 2016-06-24 | For drilling and the way-type drilling unit of aperture Double-side rounding |
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| CN105921798A true CN105921798A (en) | 2016-09-07 |
| CN105921798B CN105921798B (en) | 2018-11-23 |
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| CN201610481960.3A Active CN105921798B (en) | 2016-06-24 | 2016-06-24 | For drilling and the way-type drilling unit of aperture Double-side rounding |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106694917A (en) * | 2016-12-20 | 2017-05-24 | 绵阳市绵工工具有限公司 | Combined tool suitable for hole boring and two-face orifice chamfering |
| CN107716963A (en) * | 2017-11-21 | 2018-02-23 | 绵阳市绵工工具有限公司 | A kind of two-way chamfering tool |
| CN110497029A (en) * | 2019-07-31 | 2019-11-26 | 中国航发南方工业有限公司 | The front and back sides orifice chamfer processing method of positive and negative facing attachment and through-hole |
| CN112620739A (en) * | 2020-12-17 | 2021-04-09 | 攀钢集团攀枝花钢钒有限公司 | Drilling tool for steel rail bolt hole |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106694917A (en) * | 2016-12-20 | 2017-05-24 | 绵阳市绵工工具有限公司 | Combined tool suitable for hole boring and two-face orifice chamfering |
| CN107716963A (en) * | 2017-11-21 | 2018-02-23 | 绵阳市绵工工具有限公司 | A kind of two-way chamfering tool |
| CN110497029A (en) * | 2019-07-31 | 2019-11-26 | 中国航发南方工业有限公司 | The front and back sides orifice chamfer processing method of positive and negative facing attachment and through-hole |
| CN112620739A (en) * | 2020-12-17 | 2021-04-09 | 攀钢集团攀枝花钢钒有限公司 | Drilling tool for steel rail bolt hole |
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