CN103231082A - Square blade special for turning and milling wedge-shaped tool nose - Google Patents
Square blade special for turning and milling wedge-shaped tool nose Download PDFInfo
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- CN103231082A CN103231082A CN2013101671742A CN201310167174A CN103231082A CN 103231082 A CN103231082 A CN 103231082A CN 2013101671742 A CN2013101671742 A CN 2013101671742A CN 201310167174 A CN201310167174 A CN 201310167174A CN 103231082 A CN103231082 A CN 103231082A
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Abstract
The invention provides a square blade special for turning and milling a wedge-shaped tool nose, belongs to the technical field of cutters for turning-milling machining and aims at solving the problems including impact damage of the cutters caused by extreme mechanical impact load and high temperature, cutter-cutting bonding and the like in the machining process of ultra-large shaft forging pieces. A screw tightening through hole is arranged at the center of a blade, the wedge-shaped tool nose is arranged at the intersecting position of two adjacent back cutter faces, the front cutter face of the blade is provided with a sword-shaped protrusion, a W-shaped cutting groove is arranged on the front cutter face of the blade located between the two adjacent back cutter faces, and an annular cooling groove is coaxially arranged on the front cutter face of the blade located on the periphery of the screw tightening through hole. A triangular pit is arranged on a side wall of the annular cooling groove, pyramid-shaped protrusions are arranged in a region between the annular cooling groove and the screw tightening through hole, and two adjacent pyramid-shaped protrusions are provided with long grooves communicated with the annular cooling groove. The square blade special for turning and milling the wedge-shaped tool nose is used for turning and milling large shaft forging pieces.
Description
Technical field
The invention belongs to turnning and milling tool technical field, relate in particular to the special-purpose square blade of a kind of wedge shape point of a knife turnning and milling.
Background technology
Large-scale hydrogenation shell ring blank is directly to forge to form, and weight can reach more than 400 ton, and work surface has the unexistent forging defect of a lot of common forgings, such as: forge shovel ditch, oxide skin, forge crack and metal covering etc.The used material of hydrogenation shell ring is more special, has very strong high temperature toughness.At present, the waste processing of hydrogenation shell ring need be carried out turning and Milling Process, processing cutter for same as turning is the welded type lathe tool of single-blade, the cutting data that forging defect causes in the process changes very greatly, the mechanical shock that cutter bears is in the dynamic change constantly, the cutting force maximum can reach about 10 tons, cutter is easy to be hit and ruptures, add that present cutter does not have chip-breaker, make the smear metal in the process be difficult to fracture, be wrapped on the cutter, make the radiating condition variation of cutter, thereby cause cutting zone temperature constantly raise (can reach 1000 ℃).A large amount of heat in metal cuttings accumulate on the cutting zone, have accelerated the softening of cutter, thereby are easy to cause that the cutting edge of cutter and smear metal produce cutter-bits bonding phenomenon.Cutter life is very low, seriously restricts the raising of production efficiency.In addition, the used blade of the turning of ultra-large type forged shaft and Milling Process has nothing in common with each other at aspects such as 26S Proteasome Structure and Functions, and function is comparatively single, and range of application is narrow, versatility is poor.
Summary of the invention
The purpose of this invention is to provide the special-purpose square blade of a kind of wedge shape point of a knife turnning and milling, to solve in the ultra-large type forged shaft process, cutter undermines cutter-problems such as bits bonding by extreme mechanical shock loading and the caused impact cutting of high temperature.
In order to achieve the above object, the technical solution used in the present invention is:
The special-purpose square blade of wedge shape point of a knife turnning and milling, the horizontal cross sectional geometry of described blade is square, the center of blade is provided with the trip bolt through hole, four outward flanges of the rake face of blade are four cutting edges, the vertical section shape that parallels with four cutting edges on the blade is inverted isosceles trapezoid, the knife face intersection is provided with the wedge shape point of a knife after adjacent two of blade, the rake face of blade is provided with a sword shape projection near each wedge shape point of a knife place, four sword shape projectioies are positioned on two diagonal of rake face of blade, the rake face of blade is provided with a W shape chip-breaker between adjacent two sword shape projectioies, W shape chip-breaker is near corresponding cutting edge setting, two straight lines of limit for paralleling with corresponding cutting edge up and down of the groove side of W shape chip-breaker interlude, the rake face of blade is positioned at the trip bolt through hole peripheral coaxially is provided with annular cooling groove, be equipped with a triangular depression with each W shape chip-breaker interlude corresponding section on the sidewall of annular cooling groove, the zone of the rake face of blade between annular cooling groove and trip bolt through hole is provided with four pyramid projectioies, four pyramids projection and the corresponding setting one by one of four sword shape projectioies, adjacent two pyramid projectioies are provided with the elongated slot that is communicated with annular cooling groove.
The invention has the beneficial effects as follows:
1, the special-purpose square blade of wedge shape point of a knife turnning and milling of the present invention, the horizontal cross sectional geometry of blade is rectangle, blade point of a knife position is designed to the wedge shape point of a knife, this design can better be resisted the impact that big mechanical load is brought to point of a knife under the full depth situation, thereby improve the shock resistance of point of a knife, shock resistance is brought up to more than the present 100KN from original anti-mechanical impact load＜80KN, can play simultaneously the action effect of scraper, workpiece material to cutting zone cuts, not only improve working (machining) efficiency (the single-blade working (machining) efficiency more originally improved 30～50%), improved machined surface quality (surface quality is brought up to present Ra6.3 from original Ra12.5) simultaneously.
2, design has sword shape projection near the wedge shape point of a knife, has not only strengthened the shock resistance (intensity nearly improve 60%) of point of a knife, effectively reduces the degree of depth at point of a knife place simultaneously, under the situation of selecting little cutting depth, is conducive to fractureing of smear metal.
3, design has W shape chip-breaker near the cutting edge, selecting for use under the situation of full depth, can effectively curl to thick and wide large-scale smear metal, thereby reduce the crimp radius of smear metal (compared with prior art, crimp radius is decreased to original about 40%), and play good chip breaking effect; When selecting milling, W shape chip-breaker can effectively lead to chip, thereby makes dispersing of smear metal have more stability and directionality; Chip-breaker is designed to the W shape, has improved the shape stability of chip-breaker, reduces high temperature to the influence of chip-breaker shape.
4, annular cooling groove is positioned at periphery, trip bolt hole, a large amount of volume cutting fluids of energy, thus the blade fastening screw head of a nail is immersed in the cutting fluid, play the effect of cooling trip bolt and blade.
5, the existence of triangular depression has further improved the structural stability of the rake face of blade, has improved the shape retention energy of blade under big mechanical load; When selecting cutting fluid for use, can also effectively play the effect of volume cutting fluid, thereby the cutting fluid water conservancy diversion is entered in the annular cooling groove.
6, the design of the rake face of blade has the rake face boss, has not only increased the efficiently radiates heat area of rake face, effectively reduces the contact area of smear metal and rake face simultaneously, thereby reduces the heat transmission between cutter-bits, effectively reduces the rake wear of blade.
7, the zone of the rake face of blade between annular cooling groove and trip bolt through hole is provided with four pyramid projectioies, and form the elongated slot that is communicated with annular cooling groove between adjacent two pyramid projectioies, be conducive to flowing of cutting fluid, increase the area of dissipation of rake face simultaneously, reduce cutter-bits contact area, avoided cutter-bits bonding, when the pyramid projection is flowed through in large-scale smear metal, the moisture film that smear metal can will originally form is broken, thereby form new moisture film, improve blade self-lubricating and cooling performance.
8, the cutter bottom surface of blade is provided with four support protrusion, effectively reduces the contact area between blade and knife bar, reduces the heat transmission between blade and knife bar, the protection knife bar.This designs the mounting plane degree that can reduce simultaneously between blade and knife bar and requires (generally require 6 grades, adopt support protrusion can be reduced to about 8 grades), improves the firm and stability that blade is installed.
9, the knife face junction is provided with recess after four of tenon shape cooling bath and blade, when working angles is selected cutting fluid for use, this recess can play the effect of funneling effect, and the cutting fluid drainage is entered in the blade trip bolt through hole, has not only cooled off knife bar and has also cooled off trip bolt; When adopting DRY CUTTING, tenon shape cooling bath can effectively improve the cooling circulation of air between blade and knife bar, thereby a large amount of heat in metal cuttings are taken away by air, the protection knife bar.
To sum up, the special-purpose square blade of wedge shape point of a knife turnning and milling of the present invention is taken into account turning and milling two big functions, can adapt to the turning processing of full depth, can adapt to the Milling Process of high cutting speed again.This blade has advantages such as chip-breaking performance is good, structure perfect heat-dissipating.
Description of drawings
Fig. 1 is the vertical view of the special-purpose square blade of wedge shape point of a knife turnning and milling of the present invention, Fig. 2 is the A-A cutaway view of Fig. 1, Fig. 3 is the front view of Fig. 1, Fig. 4 is the stereogram that the special-purpose square blade of wedge shape point of a knife turnning and milling of the present invention shows the rake face of blade, Fig. 5 is the upward view of Fig. 1, Fig. 6 is the B-B cutaway view of Fig. 5, and Fig. 7 is the stereogram that the special-purpose square blade of wedge shape point of a knife turnning and milling of the present invention shows the blade bottom surface.
The specific embodiment
The specific embodiment one: as Fig. 1-shown in Figure 7, the special-purpose square blade of the wedge shape point of a knife turnning and milling of present embodiment, the horizontal cross sectional geometry of described blade is square, the center of blade is provided with trip bolt through hole 8, four outward flanges of the rake face of blade are four cutting edges 12, the vertical section shape that parallels with four cutting edges 12 on the blade is inverted isosceles trapezoid, knife face 11 intersections are provided with wedge shape point of a knife 1 after adjacent two of blade, the rake face of blade is provided with a sword shape projection 2 near each wedge shape point of a knife 1 place, four sword shape projectioies 2 are positioned on two diagonal of rake face of blade, the rake face of blade is provided with a W shape chip-breaker 3 between adjacent two sword shape projectioies 2, W shape chip-breaker 3 arranges near the corresponding cutting edge 12 of institute, two straight lines of limit 13 for paralleling with corresponding cutting edge 12 up and down of the groove side of W shape chip-breaker 3 interludes, the rake face of blade is positioned at trip bolt through hole 8 peripheral coaxially is provided with annular cooling groove 6, be equipped with a triangular depression 5 with each W shape chip-breaker 3 interlude corresponding section on the sidewall of annular cooling groove 6, the zone of the rake face of blade between annular cooling groove 6 and trip bolt through hole 8 is provided with four pyramid projectioies 7, four pyramids projection 7 and the corresponding setting one by one of four sword shape projectioies 2, adjacent two pyramid projectioies 7 are provided with the elongated slot 14 that is communicated with annular cooling groove 6.
The specific embodiment two: in conjunction with Fig. 1 and Fig. 4 explanation, the zone of the rake face of the described blade of present embodiment between annular cooling groove 6 and four W shape chip-breakers 3 is provided with rake face boss 4.Undocumented technical characterictic is identical with the specific embodiment one in the present embodiment.
The specific embodiment three: illustrate in conjunction with Fig. 1 to Fig. 7, the bed plate face of the blade of present embodiment is provided with four support protrusion 9, knife face 11 is connected after four of the tenon part that is provided with 10, four tenon shapes of the tenon shape cooling bath cooling bath 10 that communicates with back knife face 11 and the trip bolt through hole 8 of blade between adjacent two support protrusion 9 and blade.Undocumented technical characterictic is identical with the specific embodiment one or two in the present embodiment.
The specific embodiment four: in conjunction with Fig. 3, Fig. 5, Fig. 5 and Fig. 7 explanation, knife face 11 junctions are respectively arranged with recess 15 after four of the described tenon shape of present embodiment cooling bath 10 and blade.Undocumented technical characterictic is identical with the specific embodiment three in the present embodiment.
The specific embodiment five: the thickness of the described blade of present embodiment is 8mm～12mm.Preferred blade thickness is 9mm.Optimum thickness 9mm according to intensity and thickness relationship optimization of profile calculate saves the blade manufacturing cost.Undocumented technical characterictic is identical with the specific embodiment one in the present embodiment.
The specific embodiment six: the relief angle of the described blade of present embodiment is 4 °～6 °.The relief angle of preferred blade is 5 °.On the basis that does not reduce blade strength, effectively prevent behind the blade knife face and workpiece with the friction of finished surface.Undocumented technical characterictic is identical with the specific embodiment one in the present embodiment.
The specific embodiment seven: the anterior angle of the described blade of present embodiment is 14 °～16 °.The anterior angle of preferred blade is 15 °.Guarantee edge strength, improve the sharp performance of cutting edge simultaneously.Undocumented technical characterictic is identical with the specific embodiment one or six in the present embodiment.
The specific embodiment eight: the cutting edge inclination of the described blade of present embodiment is 0 °.Reduce lifting surface area, increase pressure, the moment of flexure that the working angles cutter bears reduces.Undocumented technical characterictic is identical with the specific embodiment seven in the present embodiment.
When the special-purpose square blade of wedge shape point of a knife turnning and milling of the present invention used, blade was fixed on lathe tool knife bar or the milling cutter body by trip bolt.
Claims (8)
1. the special-purpose square blade of a wedge shape point of a knife turnning and milling, the horizontal cross sectional geometry of described blade is square, the center of blade is provided with trip bolt through hole (8), it is characterized in that: four outward flanges of the rake face of blade are four cutting edges (12), the vertical section shape that parallels with four cutting edges (12) on the blade is inverted isosceles trapezoid, knife face (11) intersection is provided with wedge shape point of a knife (1) after adjacent two of blade, the rake face of blade locates to be provided with a sword shape projection (2) near each wedge shape point of a knife (1), four sword shape projectioies (2) are positioned on two diagonal of rake face of blade, the rake face of blade is positioned at and is provided with a W shape chip-breaker (3) between adjacent two sword shape projectioies (2), W shape chip-breaker (3) arranges near the corresponding cutting edge of institute (12), the straight line of two limits (13) up and down of the groove side of W shape chip-breaker (3) interlude for paralleling with corresponding cutting edge (12), the rake face of blade is positioned at the peripheral coaxial annular cooling groove (6) that is provided with of trip bolt through hole (8), be equipped with a triangular depression (5) with each W shape chip-breaker (3) interlude corresponding section on the sidewall of annular cooling groove (6), the zone that the rake face of blade is positioned between annular cooling groove (6) and the trip bolt through hole (8) is provided with four pyramid projectioies (7), four pyramid projectioies (7) and four sword shape projectioies (2) corresponding setting one by one, adjacent two pyramid projectioies (7) are provided with the elongated slot (14) that is communicated with annular cooling groove (6).
2. according to the special-purpose square blade of the described wedge shape point of a knife of claim 1 turnning and milling, it is characterized in that: the zone that the rake face of described blade is positioned between annular cooling groove (6) and four the W shape chip-breakers (3) is provided with rake face boss (4).
3. according to claim 1 or the special-purpose square blade of 2 described wedge shape point of a knife turnning and millings, it is characterized in that: the bed plate face of blade is provided with four support protrusion (9), be provided with the tenon shape cooling bath (10) that communicates with back knife face (11) and the trip bolt through hole (8) of blade between adjacent two support protrusion (9), knife face (11) is connected after four of the tenon of four tenon shape cooling baths (10) part and blade.
4. according to the special-purpose square blade of the described wedge shape point of a knife of claim 3 turnning and milling, it is characterized in that: knife face (11) junction is respectively arranged with recess (15) after four of described tenon shape cooling bath (10) and blade.
5. according to the special-purpose square blade of the described wedge shape point of a knife of claim 1 turnning and milling, it is characterized in that: the thickness of described blade is 8mm～12mm.
6. according to the special-purpose square blade of the described wedge shape point of a knife of claim 1 turnning and milling, it is characterized in that: the relief angle of described blade is 4 °～6 °.
7. according to claim 1 or the special-purpose square blade of 6 described wedge shape point of a knife turnning and millings, it is characterized in that: the anterior angle of described blade is 14 °～16 °.
8. according to the special-purpose square blade of the described wedge shape point of a knife of claim 7 turnning and milling, it is characterized in that: the cutting edge inclination of described blade is 0 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101671742A CN103231082A (en) | 2013-05-08 | 2013-05-08 | Square blade special for turning and milling wedge-shaped tool nose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101671742A CN103231082A (en) | 2013-05-08 | 2013-05-08 | Square blade special for turning and milling wedge-shaped tool nose |
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| Publication Number | Publication Date |
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| CN103231082A true CN103231082A (en) | 2013-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101671742A Pending CN103231082A (en) | 2013-05-08 | 2013-05-08 | Square blade special for turning and milling wedge-shaped tool nose |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214353A (en) * | 2017-07-22 | 2017-09-29 | 哈尔滨理工大学 | A kind of lower high temperature alloy semifinishing indexable turning blade of high pressure cooling |
| CN112974939A (en) * | 2019-12-13 | 2021-06-18 | 株式会社泰珂洛 | Cutting insert |
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| JP2005001024A (en) * | 2003-06-10 | 2005-01-06 | Tungaloy Corp | Throw-away tip |
| US20110038677A1 (en) * | 2009-01-06 | 2011-02-17 | Korloy Inc. | Milling cutting tool employing a cutting insert |
| CN202106047U (en) * | 2011-06-23 | 2012-01-11 | 哈尔滨理工大学 | Variable-edge and indexable vehicle blade special for heavy type cutting |
| CN102744431A (en) * | 2012-07-24 | 2012-10-24 | 哈尔滨理工大学 | Grip type milling and turning composite special blade under extreme super-heavy load condition |
-
2013
- 2013-05-08 CN CN2013101671742A patent/CN103231082A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005001024A (en) * | 2003-06-10 | 2005-01-06 | Tungaloy Corp | Throw-away tip |
| US20110038677A1 (en) * | 2009-01-06 | 2011-02-17 | Korloy Inc. | Milling cutting tool employing a cutting insert |
| CN202106047U (en) * | 2011-06-23 | 2012-01-11 | 哈尔滨理工大学 | Variable-edge and indexable vehicle blade special for heavy type cutting |
| CN102744431A (en) * | 2012-07-24 | 2012-10-24 | 哈尔滨理工大学 | Grip type milling and turning composite special blade under extreme super-heavy load condition |
Non-Patent Citations (3)
| Title |
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| 张景利等: "大型锻造件筒节切削加工性及提高切削效率措施", 《机械工程师》 * |
| 程耀楠等: "大型锻件高效切削加工技术", 《哈尔滨理工大学学报》 * |
| 程耀楠等: "极端重载切削条件下地刀-屑粘结失效", 《机械工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214353A (en) * | 2017-07-22 | 2017-09-29 | 哈尔滨理工大学 | A kind of lower high temperature alloy semifinishing indexable turning blade of high pressure cooling |
| CN112974939A (en) * | 2019-12-13 | 2021-06-18 | 株式会社泰珂洛 | Cutting insert |
| CN112974939B (en) * | 2019-12-13 | 2023-12-05 | 株式会社泰珂洛 | Cutting insert |
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Application publication date: 20130807 |