CN104588785A - Inner-cooling type hobbing cutter - Google Patents
Inner-cooling type hobbing cutter Download PDFInfo
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- CN104588785A CN104588785A CN201410730952.9A CN201410730952A CN104588785A CN 104588785 A CN104588785 A CN 104588785A CN 201410730952 A CN201410730952 A CN 201410730952A CN 104588785 A CN104588785 A CN 104588785A
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- cutter
- stopple
- knife bar
- 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 a kind of inner-cooled hobboing cutter, be applicable to gear hobbing processing.
Technical background
Gear, as the mechanical organ transmitting motion and power, is the key foundation transmission parts of the industries such as automobile, naval vessel, Aero-Space, metallurgy, wind-powered electricity generation.Hobbing processes is one of most widely used at present Gearmaking Technology, has the advantages that production efficiency is high, belongs to the mechanical processing technique had a large capacity and a wide range.Hobbing processes is different from the Cutting Process such as turning, hobboing cutter is in interrupted cut process, its cutter tooth is owing to being subject to the effect of thermal shock load with the violent extruding of chip, workpiece and friction, this thermal shock load exacerbates the wearing and tearing of hobboing cutter, shortens the service life of hobboing cutter.As the hobboing cutter of one of gear hobbing process master tool, its service life and design and manufaction cost etc. are subject to industry and pay much attention to.
In order to extend hobboing cutter service life, reduce costs, usually adopt that cast-type is wet cuts gear hobbing or Dry gear hobbing.Cut for gear hobbing for cast-type is wet, although the use of a large amount of cutting oil/liquid is conducive to the Cooling and Lubricator of hobboing cutter, but but there is following deficiency: (1) cutter-bits contact zone is boundary friction state, bulky grain cutting oil/liquid is difficult to form fluid lubrication, but by penetrate into cutter-bits contact zone gap in play a role, cooling and lubricating effect critical constraints.(2) in reverse gear hobbing process process, thick and heavy cutter tooth, by cutting oil/liquid and the isolation of cutter tooth rake face, makes cutting oil/liquid not easily arrive cutting zone; In climb hobbing process, cutter tooth rake face is surrounded by chip, and cutting oil/liquid is also difficult to arrive cutting zone smoothly.(3) a large amount of uses of cutting oil/liquid not only increase processing cost, but also are the major source causing environmental pollution and workman's occupational health hazards.
For Dry gear hobbing, European and American developed countries have achieved good development, and Successful utilization is in industrial production, domestic starting late, as the key technology such as machine tool technology, cutting-tool engineering is also urgently captured in this respect.Although Dry gear hobbing has the feature of environmental protection, but still there is following problem: (1) adopts Dry Hobbing owing to eliminating the use of cutting oil/liquid, friction between cutter-bits, cutter-workpiece is abnormal violent, improves the requirement of cutter structure, matrix material and coating process.(2) improve hobboing cutter matrix material and adopt the coating material of good heat resistance to significantly increase hobboing cutter manufacturing cost, and new challenge is proposed to hobboing cutter coating technology.(3) high temperature in Dry Hobbing process easily causes workpiece deformation, affects Gear Processing precision.
goal of the invention
For prior art above shortcomings, the object of the present invention is to provide a kind of inner-cooled hobboing cutter, solve cast-type and wet and cut cutting hobbing oil/liquid and blast injection is bad, increase the problem of processing cost; And the friction of Dry gear hobbing hobboing cutter is violent, wearability is influenced, affects the problems such as the service life of hobboing cutter.
Realize above-mentioned purpose, the present invention adopts following technical scheme: a kind of inner-cooled hobboing cutter, comprises knife bar and hobboing cutter; It is characterized in that, hobboing cutter is set on knife bar; Hobboing cutter fixes its axial-rotation free degree by key connecting, fixes its freedom of axial movement by packing ring, limits its other four frees degree, thus be fixed on knife bar by knife bar; Hobboing cutter headstock is connected with swivel joint by screw thread;
The hobboing cutter chip pocket be positioned at corresponding to cutter tooth rake face is provided with fluid duct; The top correspondence in fluid duct is provided with stopple, and bottom is communicated with the escape of hobboing cutter; Described stopple is connected with fluid duct by screw thread, and stopple head is provided with injection oilhole;
Knife bar is provided with cutter spindle to oilhole, and the knife bar radial direction oil hole be communicated with to oilhole with cutter spindle; The centre bore that cutter spindle passes through joint rotor to oilhole is communicated with the centre bore of joint stator; Knife bar radial direction oil hole is by escape and fluid hole link.
Further, described stopple main body is cylinder, and top is hexagon; Stopple is axially arranged with stopple oilhole, and radial direction is provided with stopple boss oilhole, is provided with external screw thread near bottom end.
Further, described stopple bottom is connected with stopple by interference fit.
Compared to existing technology, the present invention has following beneficial effect:
1. adopt stopple realize cutting oil/liquid and compressed-air actuated injection according to cutter tooth machining state or do not spray, unnecessary waste cutting oil/liquid and compressed air can being avoided everywhere to spray cause, thus reduce cutting oil/liquid and compressed-air actuated consumption, cut down finished cost.
2. adopt the stopple offered fluid duct and realize duct opening and closing in hobboing cutter, cutting oil/liquid and compressed air is made to be directly injected on the rake face of hobboing cutter cutter tooth through fluid duct, give full play to its cooling and lubricating effect, reduce hobboing cutter temperature, extend cutter life, cooling medium can be directly injected near cutting region by described hobboing cutter, takes away heat in metal cutting to greatest extent, reduces heat in metal cutting to the impact of gear hobbing process.
And directly cutting oil/liquid is ejected on the rake face of hobboing cutter cutter tooth by duct, is conducive to reducing the friction between hobboing cutter and chip, improves hobboing cutter wearability, extend cutter life.
3. in the chip pocket corresponding to cutter tooth rake face, offer fluid duct, be conducive to chip and depart from hobboing cutter surface, refinement workpiece surface roughness, reduce hob abrasion, extend cutter life.When cutting oil/liquid and compressed air flow through hobboing cutter, in hobboing cutter inner loop, hobboing cutter matrix is cooled, be conducive to reducing hobboing cutter temperature, reduce thermal-induced deformation and then the mismachining tolerance that causes and extend cutter life etc.
Accompanying drawing explanation
Fig. 1 is the structural representation of inner-cooled hobboing cutter of the present invention: (a) stereogram; (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, 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, 12 be cutter spindle to oilhole, 13 is key, and 1-1 is joint stator, 1-2 is joint rotor, and 7-1 is fluid duct step surface, and 9-1 is stopple spray-hole, 9-2 is stopple outer-hexagonal, and 9-3 is stopple oilhole, and 9-4 is stopple boss oilhole.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, a kind of inner-cooled hobboing cutter, comprises knife bar 6 and hobboing cutter 4, and hobboing cutter 4 is set on knife bar 6; Hobboing cutter 4 to be connected and fixed its axial-rotation free degree by key 13, fixes its freedom of axial movement, limit its other four frees degree, thus be fixed on knife bar 6 by knife bar 6 by packing ring 3,5; Hobboing cutter headstock 2 plays the effect supporting knife bar 6, is also connected with swivel joint 1 by screw thread simultaneously.
See Fig. 1 and Fig. 2, the present invention is on existing hob-cutter structure basis, and hobboing cutter 4 chip pocket be positioned at corresponding to cutter tooth rake face is provided with fluid duct 7; The top correspondence in fluid duct 7 is provided with stopple 9, and bottom is communicated with the escape 11 of hobboing cutter 4.
Knife bar 6 is provided with cutter spindle to oilhole 12, and the knife bar radial direction oil hole 8 be communicated with to oilhole 12 with cutter spindle; The centre bore that cutter spindle passes through joint rotor 1-2 to oilhole 12 is communicated with the centre bore of joint stator 1-1; Knife bar radial direction oil hole 8 is communicated with fluid duct 7 by escape 11.
See Fig. 3, described stopple 9 is connected with fluid duct 7 by screw thread.
See Fig. 4, described stopple 9 main body is cylinder, and top is stopple outer-hexagonal head 9-2, which is provided with stopple spray-hole 9-1; Stopple 9 is axially arranged with stopple oilhole 9-3, and radial direction is provided with stopple boss oilhole 9-4; Stopple 9 is also provided with external screw thread near bottom end;
Stopple bottom 10 is connected 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 adopts stopple 9 to be realized by the mode 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, and hobboing cutter 4 is arranged on knife bar 6.Cutting oil/liquid and compressed air enter the centre bore of joint rotor 1-2 by the entrance of joint stator 1-1, because the centre bore of joint rotor 1-2 is communicated with to oilhole 12 with cutter spindle, make cutting oil/liquid and compressed air can enter knife bar radial direction oil hole 8 by cutter spindle to oilhole 12 smoothly, after by escape 11, enter fluid duct 7; Further, 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: before cutter altered by hobboing cutter, judge that cutter tooth place circumference is in machining circumference or non-cutting processing circumference, for machining circumference adopt spanner rotating hole beyond the Great Wall hexagonal 9-2 make stopple bottom 10 away from fluid duct step surface 7-1, to make fluid duct 7 be communicated with stopple oilhole 9-3 by stopple boss oilhole 9-4, and then realize cutting oil/liquid and compressed-air actuated smooth ejection.For non-cutting processing circumference adopt spanner rotating hole beyond the Great Wall hexagonal 9-2 make stopple bottom 10 be close to fluid duct step surface 7-1, diameter due to stopple bottom 10 is greater than the diameter in duct, lower end, fluid duct 7, thus fluid duct 7 is not communicated with stopple oilhole 9-3, and then stop 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, makes cutting oil/liquid and compressed air flow through fluid duct and is directly injected on the rake face of hobboing cutter cutter tooth.Spray the rake face and minimizing cutting oil/liquid that cause cutting oil/hydraulic coupling to be not enough to as being difficult to evenly arrive every cutter tooth in order to avoid multiple fluid duct simultaneously and spray the unnecessary waste caused everywhere, by the opening and closing regulating the mode of stopple to realize fluid duct.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (5)
1. an inner-cooled hobboing cutter, comprises knife bar (6) and hobboing cutter (4); It is characterized in that, hobboing cutter (4) is set on knife bar (6); Hobboing cutter (4) to be connected and fixed its axial-rotation free degree by key (13), fixes its freedom of axial movement, limit its other four frees degree, thus be fixed on knife bar (6) by knife bar (6) by packing ring (3), (5); Hobboing cutter headstock (2) is connected with swivel joint (1) by screw thread;
Hobboing cutter (4) chip pocket be positioned at corresponding to cutter tooth rake face is provided with fluid duct (7); The top correspondence in fluid duct (7) is provided with stopple (9), and bottom is communicated with the escape (11) of hobboing cutter (4); Described stopple (9) is connected with fluid duct (7) by screw thread; Described stopple (9) head is provided with stopple spray-hole (9-1);
Knife bar (6) is provided with cutter spindle to oilhole (12), and the knife bar radial direction oil hole (8) be communicated with to oilhole (12) with cutter spindle; Cutter spindle is communicated with to the centre bore of oilhole (12) by joint rotor (1-2) with the centre bore of joint stator (1-1); Knife bar radial direction oil hole (8) is communicated with fluid duct (7) by escape (11).
2. inner-cooled hobboing cutter according to claim 1, it is characterized in that, described stopple (9) main body is cylinder, and top is for being provided with the stopple outer-hexagonal (9-2) of stopple spray-hole (9-1); Stopple (9) is axially arranged with stopple oilhole (9-3), and radial direction is provided with stopple boss oilhole (9-4); Stopple (9) is provided with external screw thread near bottom end; The bottom of stopple (9) is connected by interference fit with stopple bottom (10).
3. inner-cooled hobboing cutter according to claim 1, it is characterized in that, described knife bar radial direction oil hole (8) is set as 1,2,3 or multiple.
4. inner-cooled hobboing cutter according to claim 1, it is characterized in that, the central axis of described knife bar radial direction oil hole (8) can with the central axis conllinear of fluid duct (7), be knife bar radial direction oil hole (8) according to hobboing cutter cutter tooth spiral way along knife bar (6) helical arrangement.
5. inner-cooled hobboing cutter according to claim 1, it is characterized in that, the central axis of described knife bar radial direction oil hole (8) can with the central axis not conllinear of fluid duct (7), be knife bar radial direction oil hole (8) not in accordance with 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 true CN104588785A (en) | 2015-05-06 |
| CN104588785B CN104588785B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410730952.9A Active CN104588785B (en) | 2014-12-05 | 2014-12-05 | Inner-cooling type hobbing cutter |
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| CN (1) | CN104588785B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548231A (en) * | 2020-12-01 | 2021-03-26 | 浙江上优刀具有限公司 | Self-cooled hob capable of preventing cuttings from remaining |
| 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 |
| WO2022198845A1 (en) * | 2021-03-26 | 2022-09-29 | 万向一二三股份公司 | Pre-lithiated negative electrode plate and preparation method therefor, and lithium ion battery |
Citations (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 |
| CN102245337A (en) * | 2008-12-16 | 2011-11-16 | 钴碳化钨硬质合金公司 | Hob |
| 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 |
| CN103386513A (en) * | 2012-05-09 | 2013-11-13 | 山特维克知识产权股份有限公司 | Milling tool |
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2014
- 2014-12-05 CN CN201410730952.9A patent/CN104588785B/en active Active
Patent Citations (7)
| 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 |
| IT1195323B (en) * | 1981-02-11 | 1988-10-12 | Hurth Masch Zahnrad Carl | PROCEDURE FOR COOLING A CUTTER IN PARTICULAR TO ITS CUTTING EDGES AND ITS CUTTER |
| 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 |
| CN102245337A (en) * | 2008-12-16 | 2011-11-16 | 钴碳化钨硬质合金公司 | Hob |
| CN103386513A (en) * | 2012-05-09 | 2013-11-13 | 山特维克知识产权股份有限公司 | Milling tool |
| 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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548231A (en) * | 2020-12-01 | 2021-03-26 | 浙江上优刀具有限公司 | Self-cooled hob capable of preventing cuttings from remaining |
| 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 |
| WO2022116501A1 (en) * | 2020-12-01 | 2022-06-09 | 浙江上优刀具有限公司 | Self-cooling hob capable of preventing chips from remaining |
| WO2022198845A1 (en) * | 2021-03-26 | 2022-09-29 | 万向一二三股份公司 | Pre-lithiated negative electrode plate and preparation method therefor, 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104588785B (en) | 2017-01-11 |
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