CN104174903A - Internal cooling deep hole drill - Google Patents

Internal cooling deep hole drill Download PDF

Info

Publication number
CN104174903A
CN104174903A CN201310188724.9A CN201310188724A CN104174903A CN 104174903 A CN104174903 A CN 104174903A CN 201310188724 A CN201310188724 A CN 201310188724A CN 104174903 A CN104174903 A CN 104174903A
Authority
CN
China
Prior art keywords
blade
deep hole
internal cooling
hole drill
blade part
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
CN201310188724.9A
Other languages
Chinese (zh)
Inventor
李振丰
周攀科
周东阳
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.)
SUZHOU TIMA PRECISION MACHINERY Co Ltd
Original Assignee
SUZHOU TIMA PRECISION MACHINERY 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 SUZHOU TIMA PRECISION MACHINERY Co Ltd filed Critical SUZHOU TIMA PRECISION MACHINERY Co Ltd
Priority to CN201310188724.9A priority Critical patent/CN104174903A/en
Publication of CN104174903A publication Critical patent/CN104174903A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/06—Drills with lubricating or cooling equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B41/02—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor for boring deep holes; Trepanning, e.g. of gun or rifle barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/40—Flutes, i.e. chip conveying grooves
    • B23B2251/408—Spiral grooves

Abstract

The invention aims at providing an internal cooling deep hole drill, which has the advantage that the service life of a cutter of the internal cooling deep hole drill is prolonged, so the use cost of customers is reduced. The internal cooling deep hole drill comprises a handle part and a blade part, wherein the handle part is provided with a water entering passage which extends to the blade part, the blade part is axially provided with a parabola-shaped chip removal groove, and the end surface of the blade part is provided with a water drain port which is communicated with the water entering passage; the core thickness of the internal cooling deep hole drill is greater than or equal to 34.5% of the minimum blade diameter. The internal cooling deep hole drill has the advantages that by increasing the core thickness, the strength and rigidity of a drill bit are improved, so the service life of the drill is prolonged; additionally, by arranging the water drain port at the end surface of the blade part, the cooling water is in direct contact with the to-be-drilled material, so the temperature of the end part of the blade part and the temperature of the to-be-drilled material are well lowered, and the quality of drilling is guaranteed.

Description

A kind of interior cold depth drill
Technical field
The invention belongs to cutter manufacturing technology field, specially refer to a kind of interior cold depth drill.
 
Background technology
Drill bit, as an important component part in cutter for machining, is mainly used in the roughing in hole.Along with the development of machinery industry, user is to having proposed requirements at the higher level delivery date of the crudy of product, process reliability, working (machining) efficiency, cutter etc.Thick 30% of the minimum sword footpath of taking of core of traditional interior cold depth drill makes, and the rigidity of cutter is inadequate, adds and easily fractures man-hour.
 
Summary of the invention
The object of the invention is to propose a kind of interior cold depth drill, can improve the cutter life of interior cold depth drill, save client's use cost.
Interior cold depth drill of the present invention comprises shank and blade, and described shank is provided with the aquaporin that enters that extends to blade, and described blade offers parabola shaped chip area vertically, and key is that the end face of described blade is provided with described and enters the discharge outlet that aquaporin communicates; Thick 34.5% of the minimum sword footpath that is more than or equal to of core of described interior cold depth drill.
Thick by increasing core, can improve the strength and stiffness of drill bit, thereby extend its service life.In addition, discharge outlet is arranged to the end face of blade, cooling water can directly directly contact holed material, thus can be better to blade end and the material cooling of holing, guarantee drilling quality.
Further, described chip area is axially provided with several auxiliary discharge outlet along it, and the area of described auxiliary discharge outlet is reduced gradually by blade to shank direction.By setting up auxiliary discharge outlet, can improve the smooth degree of chip removal, and the area of auxiliary discharge outlet reduces gradually by blade to shank direction, can fully guarantee the discharge pressure of blade, thereby successfully promote chip, to shank direction, move.
Interior cold depth drill of the present invention is simple in structure, thick and auxiliary discharge outlet is set by improving core, makes chip removal more smooth and easy, and has strengthened rigidity and the intensity of drill bit, has extended the life-span of drill bit.
Accompanying drawing explanation
Fig. 1 is the structural representation of interior cold depth drill of the present invention.
Fig. 2 is the end face structure schematic diagram of Fig. 1.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is described in further detail as the effect of the mutual alignment between the shape of each related member, structure, each several part and annexation, each several part and operation principle etc.
Embodiment:
As shown in Figure 1, 2, the interior cold depth drill of the present embodiment comprises shank 1 and blade 2, described shank 1 be provided with extend to blade 2 enter aquaporin 3, described blade 2 offers parabola shaped chip area 4 vertically, and key is that the end face of described blade 2 is provided with described and enters the discharge outlet 5 that aquaporin 3 communicates; The core thick 7 of described interior cold depth drill is 34.5% of minimum sword footpath.
Thick by increasing core, can improve the strength and stiffness of drill bit, thereby extend its service life.In addition, discharge outlet 5 is arranged to the end face of blade 2, cooling water can directly directly contact holed material, thus can be better to blade 2 ends and the material cooling of holing, guarantee drilling quality.
Further, described chip area 4 is axially provided with several auxiliary discharge outlet 6 along it, and the area of described auxiliary discharge outlet 6 is reduced gradually by blade 2 to shank 1 direction.By setting up auxiliary discharge outlet 6, can improve the smooth degree of chip removal, and the area of auxiliary discharge outlet 6 reduces gradually by blade 2 to shank 1 direction, can fully guarantee the discharge pressure of blade 2, thereby successfully promote chip, to shank 1 direction, move.

Claims (2)

1. a cold depth drill in, comprises shank and blade, and described shank is provided with the aquaporin that enters that extends to blade, and described blade offers parabola shaped chip area vertically, and the end face that it is characterized in that described blade is provided with described and enters the discharge outlet that aquaporin communicates; Thick 34.5% of the minimum sword footpath that is more than or equal to of core of described interior cold depth drill.
2. interior cold depth drill according to claim 1, is characterized in that described chip area is axially provided with several auxiliary discharge outlet along it, and the area of described auxiliary discharge outlet is reduced gradually by blade to shank direction.
CN201310188724.9A 2013-05-21 2013-05-21 Internal cooling deep hole drill Pending CN104174903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310188724.9A CN104174903A (en) 2013-05-21 2013-05-21 Internal cooling deep hole drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310188724.9A CN104174903A (en) 2013-05-21 2013-05-21 Internal cooling deep hole drill

Publications (1)

Publication Number Publication Date
CN104174903A true CN104174903A (en) 2014-12-03

Family

ID=51956402

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310188724.9A Pending CN104174903A (en) 2013-05-21 2013-05-21 Internal cooling deep hole drill

Country Status (1)

Country Link
CN (1) CN104174903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106141258A (en) * 2016-08-17 2016-11-23 江苏飞达钻头股份有限公司 Stepped core thickness fluted drill and manufacture method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2235346Y (en) * 1995-08-09 1996-09-18 张红旗 No grind drilling machine with central cooling
CN1141832A (en) * 1994-08-30 1997-02-05 张孝敬 Internal-cooling bit of drill
CN1190917A (en) * 1995-07-14 1998-08-19 克纳门特尔-赫特尔刀具及硬质材料股份有限公司 Drill with cooling-lubricant channel
CN201644879U (en) * 2010-04-02 2010-11-24 沈阳远大压缩机制造有限公司 Internal cooling depth drill
CN102581356A (en) * 2012-03-21 2012-07-18 锑玛(苏州)精密工具有限公司 Internal cold drill

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1141832A (en) * 1994-08-30 1997-02-05 张孝敬 Internal-cooling bit of drill
CN1190917A (en) * 1995-07-14 1998-08-19 克纳门特尔-赫特尔刀具及硬质材料股份有限公司 Drill with cooling-lubricant channel
CN2235346Y (en) * 1995-08-09 1996-09-18 张红旗 No grind drilling machine with central cooling
CN201644879U (en) * 2010-04-02 2010-11-24 沈阳远大压缩机制造有限公司 Internal cooling depth drill
CN102581356A (en) * 2012-03-21 2012-07-18 锑玛(苏州)精密工具有限公司 Internal cold drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106141258A (en) * 2016-08-17 2016-11-23 江苏飞达钻头股份有限公司 Stepped core thickness fluted drill and manufacture method thereof

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20141203