CN104439436A - Boring and tapping integrated cutter - Google Patents

Boring and tapping integrated cutter Download PDF

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Publication number
CN104439436A
CN104439436A CN201410729815.3A CN201410729815A CN104439436A CN 104439436 A CN104439436 A CN 104439436A CN 201410729815 A CN201410729815 A CN 201410729815A CN 104439436 A CN104439436 A CN 104439436A
Authority
CN
China
Prior art keywords
cutting
spiral
screw tap
fraising
cutter
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
CN201410729815.3A
Other languages
Chinese (zh)
Inventor
钱凯
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.)
CHANGZHOU RENDA ALLOY TOOL Co Ltd
Original Assignee
CHANGZHOU RENDA ALLOY 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 CHANGZHOU RENDA ALLOY TOOL Co Ltd filed Critical CHANGZHOU RENDA ALLOY TOOL Co Ltd
Priority to CN201410729815.3A priority Critical patent/CN104439436A/en
Publication of CN104439436A publication Critical patent/CN104439436A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/08Drills combined with tool parts or tools for performing additional working
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00Thread-cutting tools; Die-heads
    • B23G5/20Thread-cutting tools; Die-heads combined with other tools, e.g. drills

Abstract

The invention relates to the technical field of cutters, in particular to a boring and tapping integrated cutter. The boring and tapping integrated cutter comprises a cutter body, wherein the front end of the cutter body is a cutting part, the back end of the cutter body is a cutter handle, the cutting part comprises a front-most end boring part, a reaming part and a screw tap part, the reaming part is arranged at the back end of the boring part, the screw tap part is arranged at the back end of the reaming part, and the external diameter of the reaming part corresponds to the internal diameter of the screw tap part to tap a bottom hole; two spiral cutting blade arranged on the cutting part, the cutting part corresponding to the spiral cutting blades is a spiral flute, the spiral cutting blades are crossed at the axis of the front end of the cutting part to form a boring main cutting blade, the helicity of each spiral cutting blade at a reaming part is slow, a cooling passage is arranged at the axis of the cutter body from the back end of the cutter handler to the front end of the cutting part and is provided with branch passages leading to the spiral flutes, and the branch passage openings are uniformly distributed in the wall of the spiral flute corresponding to the boring part, the reaming part and the screw tap part. The boring and tapping integrated cutter bores and taps a workpiece at a time with high efficiency; the quality of machined holes and inner threads is good.

Description

A kind of drilling and tapping integrated knife
Technical field
The present invention relates to cutting tool technical field, be specifically related to a kind of drilling and tapping integrated knife.
Background technology
Brill for hole expands, tapping, under normal circumstances, first with Twist Drill, then reaming gradually, again with reamer reaming, finally carried out the tapping processing of internal thread by screw tap, a series of operation is various, and long-acting rate consuming time is low, directly carry out drilling and tapping mainly with the cutter integrating drilling and tapping now, straight forming, but the internal thread that this tool sharpening goes out can cause internal thread to use due to the poor quality in hole, workpiece is scrapped.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned defect, and provide a kind of drilling and tapping integrated knife, one-shot forming, efficiency is high, and the hole processed and internal thread quality good.
The technical scheme that the present invention solves the employing of its technical problem is as follows:
A kind of drilling and tapping integrated knife, comprise cutter hub, described cutter hub front end is cutting portion, rear end is handle of a knife, cutting portion comprises bore portion foremost, the fraising portion of bore portion rear end and the screw tap portion of rear end, fraising portion, bore portion, fraising portion, the external diameter in screw tap portion increases successively, the external diameter in fraising portion corresponds to the internal diameter that screw tap portion carries out tapping bottom outlet, cutting portion is at least provided with twice spiral cutting sword, the cutting portion of spiral cutting sword corresponding position is spiral bit-withdrawing slot, spiral cutting sword crosses at axle center place, cutting portion front end and forms boring main cutting edge, the helicity of spiral cutting sword at place of fraising portion relaxes, cutter hub axle center place is provided with cooling duct from handle of a knife rear end to cutting portion front end, cooling duct is provided with the shunting leading to spiral bit-withdrawing slot, point road junction is evenly distributed in bore portion, fraising portion, on the spiral bit-withdrawing slot cell wall that screw tap portion is corresponding, bore portion first carries out Drilling operation, and then reamer portion carries out reaming processing, the size in reamer portion is corresponding with the size of bore portion, the bottom outlet internal diameter to screw tap portion tapping needs is expanded in the aperture in hole bore portion drilling gone out, quality through the hole that reamer expands is good, be convenient to screw tap portion and carry out tapping processing, make the internal thread quality that processes good, meet the requirements, spiral bit-withdrawing slot can timely by chip discharge, and the helicity of spiral cutting sword in reamer portion relaxes, be conducive to the intensity strengthening cutting edge, impel the quality improving fraising, cutting fluid arrives spiral cutting sword everywhere by the cooling duct in cutter hub axle center through shunting, make no matter cutting portion which when being in cutting cutting fluid can play and lubricate timely, thermolysis, prevent spiral cutting sword from crumbling, prevent tool damage, promote the quality improving machining, and the heat adding man-hour not only has cutting fluid to take away, also can conduct along cooling duct, thus continue to be cut liquid heat radiation.
Further, described spiral cutting sword number is twice, and twice spiral cutting sword reduces difficulty during this cutter of processing and manufacturing.
Further, described fraising portion and screw tap portion seamlessly transit, and the place of seamlessly transitting play the guiding role, and impel the quality improving tapping.
Further, the external diameter of described screw tap portion tapping tooth line first half section is gradually large, and screw tap portion tapping tooth line first half external diameter is gradually large incremental when tapping, avoids cutting at one time amount more, prevents tooth line from damaging, also improve the quality of internal thread.
The invention has the beneficial effects as follows: adopt such scheme, this cutter is carrying out adding the order following boring, fraising, tapping man-hour, and time processing is shaping, and the quality in the hole processed is high, precision is good, make the quality of fraising high, meet instructions for use, time processing is shaping simultaneously, efficiency is high, cooling duct, shunting make cutting fluid play lubrication, thermolysis in time, avoid this tool damage, extend cutting-tool's used life.
Accompanying drawing explanation
By the detailed description below in conjunction with accompanying drawing, aforesaid and other object, the feature and advantage of the present invention will become apparent.
Fig. 1 is structural representation of the present invention.
Wherein: 1 is bore portion, 2 is fraising portion, and 3 is screw tap portion, and 4 is cooling duct, and 4.1 is shunting.
Detailed description of the invention
With reference to a kind of drilling and tapping integrated knife shown in Fig. 1, comprise cutter hub, cutter hub front end is cutting portion, rear end is handle of a knife, cutting portion comprises bore portion 1 foremost, the fraising portion 2 of bore portion 1 rear end and the screw tap portion 3 of rear end, fraising portion 2, bore portion 1, fraising portion 2, the external diameter in screw tap portion 3 increases successively, bore portion 1 and fraising portion 2 and fraising portion 2 with screw tap portion 3 all to seamlessly transit, the external diameter in fraising portion 2 corresponds to the internal diameter that screw tap portion 3 carries out tapping bottom outlet, the internal thread processed is made to meet user demand, the external diameter of the tapping tooth line first half section in screw tap portion 3 is gradually large, be convenient to the quality impelling internal thread, precision improves, cutting portion is provided with twice spiral cutting sword, the cutting portion of spiral cutting sword corresponding position is spiral bit-withdrawing slot, spiral cutting sword crosses at axle center place, cutting portion front end and forms boring main cutting edge, the helicity of spiral cutting sword at place of fraising portion 2 relaxes, cutter hub axle center place is provided with cooling duct 4 from handle of a knife rear end to cutting portion front end, cooling duct 4 is provided with the shunting 4.1 leading to spiral bit-withdrawing slot, point road junction in shunting 4.1 is evenly distributed in bore portion 1, fraising portion 2, on the spiral bit-withdrawing slot cell wall of screw tap portion 3 correspondence.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention, every according in technical spirit of the present invention to any simple modification, equivalent variations that above embodiment is done, all fall within protection scope of the present invention.

Claims (4)

1. a drilling and tapping integrated knife, comprise cutter hub, it is characterized in that: described cutter hub front end is cutting portion, rear end is handle of a knife, cutting portion comprises bore portion foremost, the fraising portion of bore portion rear end and the screw tap portion of rear end, fraising portion, bore portion, fraising portion, the external diameter in screw tap portion increases successively, the external diameter in fraising portion corresponds to the internal diameter that screw tap portion carries out tapping bottom outlet, cutting portion is at least provided with twice spiral cutting sword, the cutting portion of spiral cutting sword corresponding position is spiral bit-withdrawing slot, spiral cutting sword crosses at axle center place, cutting portion front end and forms boring main cutting edge, the helicity of spiral cutting sword at place of fraising portion relaxes, cutter hub axle center place is provided with cooling duct from handle of a knife rear end to cutting portion front end, cooling duct is provided with the shunting leading to spiral bit-withdrawing slot, point road junction is evenly distributed in bore portion, fraising portion, on the spiral bit-withdrawing slot cell wall that screw tap portion is corresponding.
2. a kind of drilling and tapping integrated knife according to claim 1, is characterized in that: described spiral cutting sword number is twice.
3. a kind of drilling and tapping integrated knife according to claim 1, is characterized in that: described fraising portion and screw tap portion seamlessly transit.
4. a kind of drilling and tapping integrated knife according to claim 1, is characterized in that: the external diameter of described screw tap portion tapping tooth line first half section is gradually large.
CN201410729815.3A 2014-12-04 2014-12-04 Boring and tapping integrated cutter Pending CN104439436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410729815.3A CN104439436A (en) 2014-12-04 2014-12-04 Boring and tapping integrated cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410729815.3A CN104439436A (en) 2014-12-04 2014-12-04 Boring and tapping integrated cutter

Publications (1)

Publication Number Publication Date
CN104439436A true CN104439436A (en) 2015-03-25

Family

ID=52886622

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410729815.3A Pending CN104439436A (en) 2014-12-04 2014-12-04 Boring and tapping integrated cutter

Country Status (1)

Country Link
CN (1) CN104439436A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105364142A (en) * 2015-12-11 2016-03-02 新昌县科宇刃具机械有限公司 Drilling and tapping integrated drill bit
CN106334816A (en) * 2015-07-09 2017-01-18 深圳光启高等理工研究院 Dagger drill and method for hole processing
CN107971533A (en) * 2017-11-25 2018-05-01 益阳昱丰电气有限公司 A kind of threading drill bit suitable for thin plate
CN108145263A (en) * 2017-12-24 2018-06-12 安徽洛希尔螺纹技术有限公司 A kind of Novel threaded milling cutter
CN108453311A (en) * 2018-07-11 2018-08-28 林枫 A kind of carbide-tipped reamer
CN110064780A (en) * 2018-01-23 2019-07-30 株式会社松浦机械制作所 Cutting element
CN110461515A (en) * 2018-01-22 2019-11-15 Osg株式会社 The manufacturing method of step drill and step drill

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106334816A (en) * 2015-07-09 2017-01-18 深圳光启高等理工研究院 Dagger drill and method for hole processing
CN105364142A (en) * 2015-12-11 2016-03-02 新昌县科宇刃具机械有限公司 Drilling and tapping integrated drill bit
CN107971533A (en) * 2017-11-25 2018-05-01 益阳昱丰电气有限公司 A kind of threading drill bit suitable for thin plate
CN108145263A (en) * 2017-12-24 2018-06-12 安徽洛希尔螺纹技术有限公司 A kind of Novel threaded milling cutter
CN110461515A (en) * 2018-01-22 2019-11-15 Osg株式会社 The manufacturing method of step drill and step drill
CN110064780A (en) * 2018-01-23 2019-07-30 株式会社松浦机械制作所 Cutting element
CN108453311A (en) * 2018-07-11 2018-08-28 林枫 A kind of carbide-tipped reamer

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PB01 Publication
C06 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150325

WD01 Invention patent application deemed withdrawn after publication