CN106475606A - A kind of rustless steel screw tap - Google Patents

A kind of rustless steel screw tap Download PDF

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Publication number
CN106475606A
CN106475606A CN201611208871.8A CN201611208871A CN106475606A CN 106475606 A CN106475606 A CN 106475606A CN 201611208871 A CN201611208871 A CN 201611208871A CN 106475606 A CN106475606 A CN 106475606A
Authority
CN
China
Prior art keywords
metal
blade
shank
screw tap
cone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611208871.8A
Other languages
Chinese (zh)
Inventor
沈雪英
张耀良
张美宝
王跃慧
张其林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pinghu City Mountain Special Threading Tool Co Ltd
Original Assignee
Pinghu City Mountain Special Threading Tool Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pinghu City Mountain Special Threading Tool Co Ltd filed Critical Pinghu City Mountain Special Threading Tool Co Ltd
Priority to CN201611208871.8A priority Critical patent/CN106475606A/en
Publication of CN106475606A publication Critical patent/CN106475606A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines

Abstract

The invention discloses a kind of rustless steel screw tap, including metal blade and metal shank, their disjunctors, screw tap is in cylindrical shape, laterally disposed;The right part of metal shank is lathed to the right technique tip of cone;On metal shank, it is lathed to square toes in the left side of right technique tip;The left part of metal shank is lathed to 30 ° of chamferings of a circle, forms middle cone;The left side of metal shank connects metal blade;On metal blade, dig three helicla flutes from left to right, be evenly distributed on metal blade, having correspondingly formed three spiral knife-band;Metal blade left part is become the left technique tip of cone by relief grinding;On metal blade, in the right of left technique tip, left cone is become by relief grinding;Article three, spiral fluted bottom land is all arcuate bottom it is ensured that the core thickness of screw tap reaches 5;Article three, in knife-band, relief grinding goes out sword tooth respectively, and between adjacent two sword teeth, relief grinding goes out sword groove;Article three, each autogenous grinding in left side outer ring of spiral knife-band has blade, blade.

Description

A kind of rustless steel screw tap
Technical field
The present invention relates to a kind of rustless steel screw tap, specifically a kind of use in machining, manufacturing industry new Instrument Two-end Tap Applied, has three helicla flutes.
Background technology
It is known that machine-building, one is to need lathe, and two is the instrument needing to manufacture, and Neither of the two can be dispensed.20th century Famous instrument " Ni Zhifu drill ", once won glory for the motherland, and Ni Zhifu comrade also becomes the outstanding representative of workman, always served as the whole nation Chairman of the Labor Union.It can be seen that the manufacturing industry importance of good tool, good tool just can produce product.With Chinese machinery industry Obtain unprecedented development, the demand of metal cutting tool increasingly increases, need more preferable instrument such as Two-end Tap Applied to expire The development of the existing production of foot.Generally, regular tap metal material being processed, due to designing incorrect, unreasonable structure, The reason such as size is wrong, makes screw tap processing technique not reach requirement, poor product quality, does not improve grade, value is low, using the longevity Life short it is therefore desirable to this common screw tap is carried out with Fine design, innovation, formed a kind of Two-end Tap Applied so as to processing Quality is good, and product is superior, and utilization rate is high, and design is correct, rational in infrastructure, can make Two-end Tap Applied normal operation at work, work Performance is good, and running effect is good, so that it is guaranteed that working stability puts in place, machining accuracy is high, long service life;Overcome regular tap Design wrong, unreasonable structure, cause to process not in place, poor product quality, utilization rate is low, often occur tipping, blunt mouth etc. to lack Fall into.
Content of the invention
In order to overcome regular tap to design wrong, unreasonable structure, cause to process not in place, poor product quality, utilization rate Low, often there is the defects such as tipping, blunt mouth, the invention provides a kind of rustless steel screw tap, it is a kind of Two-end Tap Applied, has three Bar helicla flute, design is correct, rational in infrastructure, can normal operation at work, be connected firmly, favorable working performance, running effect is good, So that it is guaranteed that working stability puts in place, machining accuracy is high, keen edge, long service life.
Technical scheme:A kind of rustless steel screw tap, including metal blade and metal shank, metal blade is with metal shank even Body, steel edge portion be located at screw tap left part, metal shank be located at screw tap right part it is characterised in that screw tap be in cylindrical shape, Laterally disposed in the example shown;The circle diameter of metal shank is 11;It is lathed to cone in the right part of metal shank Right technique tip, the angle of right technique tip is 75 °, and the left and right length of right technique tip is 7;On metal shank and It is lathed to square toes in the left side of right technique tip, the length on four sides in the section of square toes is all 9, the left and right length of square toes Spend for 13, the left and right length making metal shank is 86;It is lathed to 30 ° of chamferings of a circle in the left part of metal shank, Angular distance is 1, forms a middle cone, and the circle diameter making the left side of metal shank is 9;The left side of metal shank Connect metal blade, the excircle diameter of metal blade is also 9;On metal blade, excavation has three spirals from left to right Groove, its helical angle is 40 °, and three helicla flutes are evenly distributed on metal blade, and correspondingly form three spiral knife-band; In metal blade left part, the left technique tip of cone is become by relief grinding, the angle of left technique tip is 75 °, left technique tip Left and right length is 6;Again the right on metal blade and in left technique tip, is become a left cone by relief grinding, is formed Relief grinding angle be 15 °, the left and right length of left cone is 3.5;So, the left and right length making metal blade reaches 43; Article three, spiral fluted bottom land can be arcuate bottom, and this three arcuate bottom will guarantee that the core thickness of screw tap reaches 5;In three knife-band On, relief grinding goes out a sword tooth respectively, and between adjacent two sword teeth, relief grinding goes out a sword groove;Sword tooth is in trapezoid shape, sword Groove is in reverse trapezoid shape;Sword tooth can be 1 1.6 with the height of sword groove;The angle of left and right two hypotenuses of sword groove is 60 °; Point out:Article three, each autogenous grinding in left side outer ring of spiral knife-band has blade, and the relief grinding amount of blade is 1--1.4, wears into tap anterior angle For 8 ° -12 °, tread is made to reach 4--5;A kind of rustless steel screw tap can use the materials such as high-quality rustless steel to make.
The beneficial effects of the present invention is:Provide a kind of rustless steel screw tap, it is a kind of Two-end Tap Applied, there are three spiral shells Spin slot, design is correct, rational in infrastructure, can normal operation at work, be connected firmly, favorable working performance, running effect is good, thus Guarantee that working stability puts in place, machining accuracy is high, keen edge, long service life.Regular tap is overcome to design wrong, structure does not conform to Reason, causes to process not in place, poor product quality, utilization rate is low, often the defects such as tipping, blunt mouth occurs, can meet enterprise Produce, expand the social need of product.
Brief description
A kind of structural representation of the main view of Fig. 1 rustless steel screw tap
A kind of left view structural representation of the amplification of Fig. 2 rustless steel screw tap
The A-A cross-sectional view that a kind of right side of Fig. 3 rustless steel screw tap regards
A kind of sword tooth of amplification of Fig. 4 rustless steel screw tap and the part-structure schematic diagram of sword groove
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings:
A kind of rustless steel screw tap, including metal blade 2 and metal shank 1, metal blade 2 and metal shank 1 disjunctor, metal blade 2 left parts being located at screw tap, metal shank 1 is located at the right part of screw tap it is characterised in that screw tap is in cylindrical shape, in the example shown horizontal stroke To placement;The circle diameter of metal shank 1 is 11;The right part of metal shank 1 is lathed to the right technique tip of cone 9, the angle of right technique tip 9 is 75 °, and the left and right length of right technique tip 9 is 7;On metal shank 1 and in right work The left side of skill tip 9 is lathed to square toes 8, and the length 16 on four sides in the section of square toes 8 is all 9, the left and right length of square toes 8 Spend for 13, the left and right length making metal shank 1 is 86;It is lathed to 30 ° of chamferings of a circle in the left part of metal shank 1 4, chamfering distance is 1, forms a middle cone, and the circle diameter making the left side of metal shank 1 is 9;Metal shank 1 The left side connect metal blade 2, the excircle diameter of metal blade 2 is also 9;On metal blade 2, excavation has from left to right Article three, helicla flute 5, its helical angle 7 is 40 °, and three helicla flutes 5 are evenly distributed on metal blade 2, and correspondingly form three Bar spiral knife-band 13;In metal blade 2 left part, the left technique tip 6 of cone is become by relief grinding, the angle of left technique tip 6 is 75 °, the left and right length of left technique tip 6 is 6;Right on metal blade 2 and in left technique tip 6, is become by relief grinding One left cone 3, the relief grinding angle 10 of formation is 15 °, and the left and right length of left cone 3 is 3.5;So, make metal blade 2 left and right length reaches 43;Article three, the bottom land of helicla flute 5 is all arcuate bottom, and this three arcuate bottom guarantee the core thickness 11 of screw tap Reach 5;In three knife-band 13, relief grinding goes out a sword tooth 18 respectively, and between adjacent two sword teeth 18, relief grinding goes out one Sword groove 19;Sword tooth 18 is in trapezoid shape, and sword groove 19 is in reverse trapezoid shape;Sword tooth 18 is 1.3 with the height of sword groove 19;Sword groove The angle 17 of 19 left and right two hypotenuses is 60 °;It may be noted that:Article three, each autogenous grinding in left side outer ring of spiral knife-band 13 has blade, The relief grinding amount 14 of blade is 1.2, wears into tap anterior angle 15 and is 12 °, makes tread 12 reach 4.5;A kind of rustless steel screw tap is with excellent Matter stainless steel material makes.

Claims (1)

1. a kind of rustless steel screw tap, including metal blade (2) and metal shank (1), metal blade (2) is with metal shank (1) even Body, metal blade (2) is located at the left part of screw tap, and metal shank (1) is located at the right part of screw tap it is characterised in that screw tap is in cylinder Shape, laterally disposed;The circle diameter of metal shank (1) is 11;The right part of metal shank (1) is lathed to cone Right technique tip (9), the angle of right technique tip (9) is 75 °, and the left and right length of right technique tip (9) is 7;In metal handle Portion (1) is upper and is lathed to square toes (8), the length on four sides in the section of square toes (8) in the left side of right technique tip (9) (16) it is all 9, the left and right length of square toes (8) is 13, the left and right length of metal shank (1) is 86;In metal shank (1) left part is lathed to 30 ° of chamferings (4) of a circle, and chamfering distance is 1, forms a middle cone, metal shank (1) circle diameter on the left side is 9;The left side of metal shank (1) connects metal blade (2), the excircle of metal blade (2) A diameter of 9;In metal blade (2), excavation has three helicla flutes (5) above, from left to right, and its helical angle (7) is 40 °, three spiral shells Spin slot (5) is evenly distributed on metal blade (2), correspondingly forms three spiral knife-band (13);Left in metal blade (2) End is become the left technique tip (6) of cone by relief grinding, and the angle of left technique tip (6) is 75 °, a left side for left technique tip (6), Right length is 6;Go up and the right in left technique tip (6) in metal blade (2), a left cone (3) become by relief grinding, The relief grinding angle (10) being formed is 15 °, and the left and right length of left cone (3) is 3.5;The left and right length of metal blade (2) reaches To 43;Article three, the bottom land of helicla flute (5) is all arcuate bottom it is ensured that core thickness (11) of screw tap reaches 5;In three knife-band (13) On, relief grinding goes out sword tooth (18) respectively, and between adjacent two sword teeth (18), relief grinding goes out a sword groove (19);Sword tooth (18) is in trapezoid Shape, sword groove (19) is in reverse trapezoid shape;Sword tooth (18) is 1.3 with the height of sword groove (19);Left and right two of sword groove (19) The angle (17) of hypotenuse is 60 °;Article three, each autogenous grinding in left side outer ring of spiral knife-band (13) has blade, and the relief grinding amount (14) of blade is 1.2, wear into tap anterior angle (15) and be 12 °, tread (12) reaches 4.5.
CN201611208871.8A 2016-12-23 2016-12-23 A kind of rustless steel screw tap Pending CN106475606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611208871.8A CN106475606A (en) 2016-12-23 2016-12-23 A kind of rustless steel screw tap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611208871.8A CN106475606A (en) 2016-12-23 2016-12-23 A kind of rustless steel screw tap

Publications (1)

Publication Number Publication Date
CN106475606A true CN106475606A (en) 2017-03-08

Family

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CN201611208871.8A Pending CN106475606A (en) 2016-12-23 2016-12-23 A kind of rustless steel screw tap

Country Status (1)

Country Link
CN (1) CN106475606A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010158731A (en) * 2009-01-06 2010-07-22 Osg Corp Spiral tap
CN203448800U (en) * 2013-07-12 2014-02-26 常州恒鼎工具制造有限公司 Small-diameter spiral flute tap
CN103909310A (en) * 2014-04-08 2014-07-09 浙江美克工具有限公司 Screw tap
CN103990869A (en) * 2014-06-12 2014-08-20 航天精工股份有限公司 Large length-diameter-ratio screw tap for titanium alloy piece tapping
CN203956264U (en) * 2014-07-22 2014-11-26 大宝(东莞)模具切削工具有限公司 The special-purpose spiral screw of a kind of stainless steel
KR20150030386A (en) * 2013-09-12 2015-03-20 주식회사 밸류엔지니어링 Spiral tap for tapping ultra-hard material
CN206343677U (en) * 2016-12-23 2017-07-21 平湖市山特螺纹工具有限公司 A kind of stainless steel screw tap

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010158731A (en) * 2009-01-06 2010-07-22 Osg Corp Spiral tap
CN203448800U (en) * 2013-07-12 2014-02-26 常州恒鼎工具制造有限公司 Small-diameter spiral flute tap
KR20150030386A (en) * 2013-09-12 2015-03-20 주식회사 밸류엔지니어링 Spiral tap for tapping ultra-hard material
CN103909310A (en) * 2014-04-08 2014-07-09 浙江美克工具有限公司 Screw tap
CN103990869A (en) * 2014-06-12 2014-08-20 航天精工股份有限公司 Large length-diameter-ratio screw tap for titanium alloy piece tapping
CN203956264U (en) * 2014-07-22 2014-11-26 大宝(东莞)模具切削工具有限公司 The special-purpose spiral screw of a kind of stainless steel
CN206343677U (en) * 2016-12-23 2017-07-21 平湖市山特螺纹工具有限公司 A kind of stainless steel screw tap

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Application publication date: 20170308