CN104588785B - Inner-cooling type hobbing cutter - Google Patents
Inner-cooling type hobbing cutter Download PDFInfo
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- CN104588785B CN104588785B CN201410730952.9A CN201410730952A CN104588785B CN 104588785 B CN104588785 B CN 104588785B CN 201410730952 A CN201410730952 A CN 201410730952A CN 104588785 B CN104588785 B CN 104588785B
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- cutter
- knife bar
- stopple
- hobboing cutter
- oil hole
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Abstract
The invention provides an inner-cooling type hobbing cutter which comprises a cutter rod and a hobbing cutter body. An oil hole channel is arranged in a chip containing groove, corresponding to front cutter faces of cutter teeth, of the hobbing cutter body. A hole plug is correspondingly arranged on the upper portion of the oil hole channel, and the lower portion of the oil hole channel is communicated with a cutter retreating groove of the hobbing cutter body. The whole plug with an jet hole in the head portion is connected with the oil hole channel through threads. A cutter rod axial oil hole and cutter rod radial oil holes communicated with the cutter rod axial oil hole are formed in the cutter rod. The cutter rod axial oil hole is communicated with a center hole of a connector stator through a center hole of a connector rotor. The oil hole channel in the hobbing cutter body and the hole plug for opening and closing the hole channel are adopted, cutting oil/liquid and compressed air are directly jetted on the front cutter faces of the cutter teeth of the hobbing cutter body through the oil hole channel, the cooling and lubricating function is fully achieved, the temperature of the hobbing cutter is reduced, the service life of the hobbing cutter is prolonged, the hobbing cutter can direct jet cooling media nearby a cutting area, cutting heat is taken away to the greatest extent, and the influence of the cutting heat on hobbing machining is reduced.
Description
Technical field
The invention belongs to metal cutting process cutter field, relate to gear hob, particularly to a kind of inner-cooled hobboing cutter, suitable
Process for gear hobbing.
Technical background
Gear, as transmitting movement and the mechanical organ of power, is the industries such as automobile, naval vessel, Aero-Space, metallurgy, wind-powered electricity generation
Key foundation transmission parts.Hobbing processes is one of the most most widely used Gearmaking Technology, has production efficiency high
Feature, belong to the mechanical processing technique having a large capacity and a wide range.Hobbing processes is different from the Cutting Process such as turning, and hobboing cutter is in interrupted cut
During, its cutter tooth is owing to being acted on by thermal shock load, this thermal shock with chip, acutely compressing and rubbing against of workpiece
Load exacerbates the abrasion of hobboing cutter, shortens the service life of hobboing cutter.As the hobboing cutter of one of gear hobbing process master tool, it makes
Paid much attention to by industry with manufacturing cost etc. with life-span and design.
In order to extend hobboing cutter service life, reduce cost, generally use that cast-type is wet cuts gear hobbing or Dry gear hobbing.For
Cast-type is wet cut gear hobbing for, although cut using of oil/liquid in a large number and be conducive to the cooling of hobboing cutter and lubrication, but but also exist
Following deficiency: (1) cutter-bits contact area is boundary friction state, bulky grain cutting oil/liquid is difficult to form fluid lubrication, but leans on
Penetrate in the gap of cutter-bits contact area and play a role, cooling and lubricating effect critical constraints.(2) in reverse gear hobbing process process
In, thick and heavy cutter tooth will cut oil/liquid and the isolation of cutter tooth rake face so that cutting oil/liquid is difficult to arrive cutting zone；Forward
During gear hobbing process, cutter tooth rake face is surrounded by chip, and cutting oil/liquid is also difficult to arrive cutting zone smoothly.(3) cutting
The a large amount of use of oil/liquid not only increases processing cost, but also is to cause environmental pollution and the master of workman's occupational health hazards
Want source.
For Dry gear hobbing, European and American developed countries have been achieved for good development, and Successful utilization is raw in industry
In product, domestic starting late, as the key technology such as machine tool technology, cutting-tool engineering is the most urgently captured in this respect.Although dry type
Gear hobbing has the feature of environmental protection, but still there is problems in that (1) uses owing to eliminating the use of cutting oil/liquid
Dry Hobbing, the friction between cutter-bits, cutter-workpiece is abnormal acutely, improves cutter structure, matrix material and coating process
Requirement.(2) improvement hobboing cutter matrix material and the heat-resist coating material of employing significantly increase hobboing cutter manufacturing cost, and to rolling
Cutter coating technology proposes new challenge.(3) high temperature during Dry Hobbing easily causes workpiece to deform, and affects Gear Processing essence
Degree.
Goal of the invention
For deficiencies of the prior art, it is an object of the invention to provide a kind of inner-cooled hobboing cutter, solve to water
Note formula is wet cuts cutting hobbing oil/liquid and blast injection is bad, the problem that increases processing cost；And Dry gear hobbing hobboing cutter rubs
Wipe acutely, wearability impacted, affect the problem such as service life of hobboing cutter.
Realizing above-mentioned purpose, the present invention adopts the following technical scheme that a kind of inner-cooled hobboing cutter, including knife bar and hobboing cutter；Its
Being characterised by, hobboing cutter is set on knife bar；Hobboing cutter fixes its axial-rotation degree of freedom by key connecting, fixes its axle by packing ring
To one-movement-freedom-degree, limit its four additional degree of freedom by knife bar, thus be fixed on knife bar；Hobboing cutter headstock by screw thread with
Swivel joint couples；
Hobboing cutter is positioned at the chip pocket corresponding to cutter tooth rake face and is provided with fluid duct；The top in fluid duct is correspondingly provided with
Stopple, the escape of bottom connection hobboing cutter；Described stopple is coupled with fluid duct by screw thread, and stopple head is provided with injection oil
Hole；
Knife bar is provided with the axial oilhole of knife bar, and the knife bar radial direction oil hole that oilhole axial with knife bar connects；Knife bar is axial
Oilhole is connected with the centre bore of joint stator by the centre bore of joint rotor；Knife bar radial direction oil hole is by escape and fluid hole
Road connects.
Further, described stopple main body is cylinder, and top is hexagon；Stopple is axially arranged with stopple oilhole, radially
It is provided with stopple boss oilhole, is provided with external screw thread near bottom end.
Further, described stopple bottom is coupled with stopple by interference fit.
Compared to existing technology, there is advantages that
1. use stopple realize cutting oil/liquid and compressed-air actuated injection according to cutter tooth machining state or do not spray, it is to avoid
Cutting oil/liquid and compressed air spray the unnecessary waste caused everywhere, thus reduce cutting oil/liquid and compressed-air actuated use
Amount, reduces processing cost.
2. use and in hobboing cutter, offer fluid duct and realize the stopple of duct opening and closing so that cutting oil/liquid and compression sky
Gas is directly injected on the rake face of hobboing cutter cutter tooth through fluid duct, gives full play to its cooling and lubricating effect, reduces hobboing cutter temperature
Degree, extends cutter life, and cooling medium can be directly injected near cutting region, take away cutting to greatest extent by described hobboing cutter
Heat, reduces the heat in metal cutting impact on gear hobbing process.
And passing hole channel directly by cutting oil/liquid be ejected on the rake face of hobboing cutter cutter tooth, advantageously reduce hobboing cutter with
Friction between chip, improves hobboing cutter wearability, extends cutter life.
3. in the chip pocket corresponding to cutter tooth rake face, offer fluid duct, beneficially chip depart from hobboing cutter surface, carefully
Change workpiece surface roughness, reduce hob abrasion, extend cutter life.When cutting oil/liquid and compressed air flow through hobboing cutter, in rolling
Hobboing cutter matrix is also cooled down by cutter inner loop, advantageously reduces hobboing cutter temperature, reduces thermal-induced deformation and then the processing caused
Error and prolongation cutter life etc..
Accompanying drawing explanation
Fig. 1 is the structural representation of inner-cooled hobboing cutter of the present invention: (a) axonometric chart；(b) partial sectional view.
Fig. 2 is the half sectional view of Fig. 1.
Fig. 3 is the radial cross-section of inner-cooled hobboing cutter of the present invention: (a) radial cross-section；(b) partial enlarged drawing.
Fig. 4 is stopple and stopple bottom: (a) head；(b) bottom；(c) half sectional view.
In figure, 1 is swivel joint, and 2 is hobboing cutter headstock, and 3 is packing ring, and 4 is hobboing cutter, and 5 is packing ring, and 6 is knife bar, and 7 is fluid
Duct, 8 is knife bar radial direction oil hole, and 9 is stopple, and 10 is stopple bottom, and 11 is escape, and 12 is the axial oilhole of knife bar, and 13 is key,
1-1 is joint stator, and 1-2 is joint rotor, and 7-1 is fluid duct step surface, and 9-1 is stopple spray-hole, and 9-2 is stopple outer six
Angle, 9-3 is stopple oilhole, and 9-4 is stopple boss oilhole.
Detailed description of the invention
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of inner-cooled hobboing cutter, including knife bar 6 and hobboing cutter 4, hobboing cutter 4 is set on knife bar 6；Hobboing cutter 4 leads to
Cross key 13 to be connected and fixed its axial-rotation degree of freedom, fix its freedom of axial movement by packing ring 3,5, limited by knife bar 6
Its four additional degree of freedom, thus be fixed on knife bar 6；Hobboing cutter headstock 2 plays the effect supporting knife bar 6, simultaneously also by spiral shell
Stricture of vagina couples with swivel joint 1.
Seeing Fig. 1 and Fig. 2, the present invention is on the basis of existing hob-cutter structure, and hobboing cutter 4 is positioned at the appearance corresponding to cutter tooth rake face
It is provided with fluid duct 7 in bits groove；The top in fluid duct 7 is correspondingly provided with stopple 9, the escape 11 of bottom connection hobboing cutter 4.
Knife bar 6 is provided with the axial oilhole of knife bar 12, and the knife bar radial direction oil hole 8 that oilhole axial with knife bar 12 connects；Cutter
The axial oilhole of bar 12 is connected with the centre bore of joint stator 1-1 by the centre bore of joint rotor 1-2；Knife bar radial direction oil hole 8 is led to
Cross escape 11 to connect with fluid duct 7.
Wherein, knife bar radial direction oil hole 8 is set as 1,2,3 or multiple.The central axis of knife bar radial direction oil hole 8 can be with fluid
The central axis conllinear in duct 7, is knife bar radial direction oil hole 8 according to hobboing cutter cutter tooth spiral way along knife bar 6 helical arrangement.Or
Person, the central axis of knife bar radial direction oil hole 8 can be knife bar radial direction oil hole 8 not with the central axis in fluid duct 7 not conllinear
According to hobboing cutter cutter tooth spiral way along knife bar 6 helical arrangement.
Seeing Fig. 3, described stopple 9 is coupled with fluid duct 7 by screw thread.
Seeing Fig. 4, described stopple 9 main body is cylinder, and top is stopple outer-hexagonal head 9-2, which is provided with stopple spray
Perforation 9-1；Stopple 9 is axially arranged with stopple oilhole 9-3, is radially provided with stopple boss oilhole 9-4；Stopple 9 is near bottom end also
It is provided with external screw thread；
Stopple bottom 10 is coupled with stopple 9 by interference fit.
Further, the pore size in fluid duct 7 sets according to hobboing cutter size；The opening and closing in fluid duct 7 uses stopple 9
Realize by the way of manual adjustment according to the machining state of cutter tooth place circumference.
The specific works mode of inner-cooled hobboing cutter of the present invention is: knife bar 6 is fixed on the hob head of gear hobbing lathe, rolling
Cutter 4 is arranged on knife bar 6.Cutting oil/liquid and compressed air are entered in joint rotor 1-2 by the entrance of joint stator 1-1
Central hole, owing to the centre bore of joint rotor 1-2 oilhole axial with knife bar 12 connects so that cutting oil/liquid and compressed air are permissible
Pass through the axial oilhole of knife bar 12 and enter knife bar radial direction oil hole 8, after by escape 11, enter fluid duct 7；Enter one
Step, cutting oil/liquid and compressed air enter stopple 9 and are ejected into the rake face of hobboing cutter cutter tooth from stopple spray-hole 9-1.
Stopple 9 is for opening and closing fluid duct 7: judge that before cutter altered by hobboing cutter cutter tooth place circumference is in machining circumference also
Non-machining circumference, for machining circumference use spanner rotating hole hexagonal 9-2 beyond the Great Wall make stopple bottom 10 away from
Fluid duct step surface 7-1, so that fluid duct 7 is connected with stopple oilhole 9-3 by stopple boss oilhole 9-4, Jin Ershi
Now cut oil/liquid and compressed-air actuated smooth ejection.Spanner rotating hole hexagonal 9-2 beyond the Great Wall is used to make for non-cutting processing circumference
Obtain stopple bottom 10 and be close to fluid duct step surface 7-1, owing to the diameter of stopple bottom 10 is more than duct, lower end, fluid duct 7
Diameter, so that fluid duct 7 does not connects with stopple oilhole 9-3, and then stops cutting oil/liquid and compressed-air actuated ejection.
The present invention offers fluid duct in the chip pocket that every, hobboing cutter cutter tooth rake face is corresponding so that cutting oil/liquid and
Compressed air flows through fluid duct and is directly injected on the rake face of hobboing cutter cutter tooth.In order to avoid multiple fluid ducts are sprayed simultaneously
Cutting oil/hydraulic coupling is caused to be not enough to as being difficult to uniformly arrive the rake face of every cutter tooth and reducing cutting oil/liquid everywhere
The unnecessary waste that injection causes, realizes the opening and closing in fluid duct by the way of regulation stopple.
Finally illustrating, above example is only in order to illustrate technical scheme and unrestricted, although with reference to relatively
The present invention has been described in detail by good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent, and without deviating from objective and the scope of technical solution of the present invention, it all should be contained at this
In the middle of the right of invention.
Claims (4)
1. an inner-cooled hobboing cutter, including knife bar (6) and hobboing cutter (4)；It is characterized in that, hobboing cutter (4) is set on knife bar (6)；
Hobboing cutter (4) is connected and fixed its axial-rotation degree of freedom by key (13), is fixed it moved axially freedom by packing ring (3), (5)
Degree, limits its four additional degree of freedom by knife bar (6), thus is fixed on knife bar (6)；Hobboing cutter headstock (2) by screw thread with
Swivel joint (1) couples；
Hobboing cutter (4) is positioned at the chip pocket corresponding to cutter tooth rake face and is provided with fluid duct (7)；The top pair in fluid duct (7)
Stopple (9), the escape (11) of bottom connection hobboing cutter (4) should be provided with；Described stopple (9) is joined with fluid duct (7) by screw thread
Connect；Described stopple (9) head is provided with stopple spray-hole (9-1)；
Knife bar (6) is provided with the axial oilhole of knife bar (12), and the knife bar radial direction oil hole that oilhole axial with knife bar (12) connects
(8)；The axial oilhole of knife bar (12) is connected with the centre bore of joint stator (1-1) by the centre bore of joint rotor (1-2)；Knife bar
Radial direction oil hole (8) is connected with fluid duct (7) by escape (11)；
Described stopple (9) main body is cylinder, and top is the stopple outer-hexagonal (9-2) being provided with stopple spray-hole (9-1)；Stopple
(9) it is axially arranged with stopple oilhole (9-3), is radially provided with stopple boss oilhole (9-4)；Stopple (9) is outside bottom end is provided with
Screw thread；The bottom of stopple (9) is coupled by interference fit with stopple bottom (10).
Inner-cooled hobboing cutter the most according to claim 1, it is characterised in that knife bar radial direction oil hole (8) is set as 1,2,3 or many
Individual.
Inner-cooled hobboing cutter the most according to claim 1, it is characterised in that the central axis of knife bar radial direction oil hole (8) can be with
The central axis conllinear in fluid duct (7), is knife bar radial direction oil hole (8) according to hobboing cutter cutter tooth spiral way along knife bar (6)
Helical arrangement.
Inner-cooled hobboing cutter the most according to claim 1, it is characterised in that the central axis of knife bar radial direction oil hole (8) can be with
The central axis not conllinear in fluid duct (7), be knife bar radial direction oil hole (8) not according to hobboing cutter cutter tooth spiral way along knife bar
(6) helical arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730952.9A CN104588785B (en) | 2014-12-05 | 2014-12-05 | Inner-cooling type hobbing cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410730952.9A CN104588785B (en) | 2014-12-05 | 2014-12-05 | Inner-cooling type hobbing cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104588785A CN104588785A (en) | 2015-05-06 |
| CN104588785B true CN104588785B (en) | 2017-01-11 |
Family
ID=53115028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410730952.9A Active CN104588785B (en) | 2014-12-05 | 2014-12-05 | Inner-cooling type hobbing cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104588785B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548231B (en) * | 2020-12-01 | 2022-04-29 | 南京迈森智能装备有限公司 | Self-cooled hob capable of preventing cuttings from remaining |
| CN113363420B (en) * | 2021-03-26 | 2022-07-19 | 万向一二三股份公司 | Pre-lithium negative plate, preparation method thereof and lithium ion battery |
| CN113210753A (en) * | 2021-05-17 | 2021-08-06 | 浙江上优刀具有限公司 | Straight flute hobbing cutter that can clear up chip groove automatically |
| CN114799366A (en) * | 2022-03-09 | 2022-07-29 | 吴頔 | Embedded high-order precision full-transposition inner-cooling gear hob |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3105933A1 (en) * | 1981-02-11 | 1982-08-19 | Carl Hurth Maschinen- und Zahnradfabrik GmbH & Co, 8000 München | Method of cooling a milling tool, in particular at its cutting edges, and milling tool suitable for this method |
| DE4445910C1 (en) * | 1994-12-22 | 1996-01-25 | Fette Wilhelm Gmbh | Gear=cutting hob design with cermet inserts |
| CN1161262A (en) * | 1996-12-24 | 1997-10-08 | 郑小舟 | Hobs for mfg. gear teeth with coarse processing or fine processing of integral arbor assembly type |
| DE102009016257B4 (en) * | 2008-12-16 | 2017-09-07 | Kennametal Inc. | hobs |
| SE536487C2 (en) * | 2012-05-09 | 2013-12-17 | Sandvik Intellectual Property | Milling tools for hobbing |
| CN103341661A (en) * | 2013-07-12 | 2013-10-09 | 浙江上优刀具有限公司 | Special-shaped hobbing cutter for machining gear shaving cutter |
-
2014
- 2014-12-05 CN CN201410730952.9A patent/CN104588785B/en active Active
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| Publication number | Publication date |
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| CN104588785A (en) | 2015-05-06 |
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