CN104690354A - Key slot drill milling cutter - Google Patents

Key slot drill milling cutter Download PDF

Info

Publication number
CN104690354A
CN104690354A CN201410726683.9A CN201410726683A CN104690354A CN 104690354 A CN104690354 A CN 104690354A CN 201410726683 A CN201410726683 A CN 201410726683A CN 104690354 A CN104690354 A CN 104690354A
Authority
CN
China
Prior art keywords
cutting edge
milling cutter
main cutting
chip
keyway
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
CN201410726683.9A
Other languages
Chinese (zh)
Inventor
杨秀章
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.)
Guizhou Southwest Tool Group Co Ltd
Original Assignee
Guizhou Southwest Tool Group 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 Guizhou Southwest Tool Group Co Ltd filed Critical Guizhou Southwest Tool Group Co Ltd
Priority to CN201410726683.9A priority Critical patent/CN104690354A/en
Publication of CN104690354A publication Critical patent/CN104690354A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • B23C5/10Shank-type cutters, i.e. with an integral shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2210/00Details of milling cutters
    • B23C2210/40Flutes, i.e. chip conveying grooves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C2220/00Details of milling processes
    • B23C2220/36Production of grooves

Abstract

The invention discloses a key slot drill milling cutter. The key slot drill milling cutter comprises a cutter handle and a cutting part, wherein two spiral chip removing grooves are formed in the cutting part; secondary chip cutting blades are arranged at the edges of the spiral chip removing grooves; a first main chip cutting blade and a second main chip cutting blade are arranged the end part of the cutting part; cutting edges of the first main chip cutting blade and the second chip cutting blade are arranged on the same straight line passing through the central line; and notches are formed in the parts, close to the center, of the first main chip cutting blade and the second chip cutting blade. The key slot drill milling cutter has a simple structure, high machining efficiency and good machining precision; and a key slot can be machined and molded once and the labor intensity of machining is alleviated.

Description

A kind of keyway bores milling cutter
Technical field
The present invention relates to a kind of keyway and bore milling cutter, belong to machining tool technical field.
Background technology
In common machining, the processing technology for keyway is all generally take drill bit first to punch, and then processes by the mode that milling cutter carries out milling, or adopts cotter mill cutter to carry out just boring, and rear milling mode completes.But above-mentioned keyway processing mode to there is working (machining) efficiency all lower, and need twice Set and Positioning, the machining accuracy of keyway is difficult to ensure.Therefore, existing keyway process tool is to processing parts keyway or not ideal enough.
Summary of the invention
The object of the invention is to, provide that a kind of structure is simple, working (machining) efficiency is high, good processing accuracy, and the keyway of disposable for keyway machine-shaping can be bored milling cutter, to overcome prior art deficiency.
Technical scheme of the present invention: a kind of keyway bores milling cutter, comprise handle of a knife and chip portion, chip portion is run through and has twice helical flute, the edge of helical flute is provided with end cutting edge, the first main cutting edge and the second main cutting edge is provided with in the end in chip portion, the cutting edge of described first main cutting edge and the second main cutting edge is arranged on the same straight line by center line, and the first main cutting edge and the second main cutting edge are being provided with breach by paracentral position.
The length of the described first main cutting edge is D/2+B, and wherein D is shank diameter, and B is 0.2 ~ 0.3mm.
The size of described breach C is 0.5 ~ 3mm.
The angle α of described end cutting edge and horizontal plane is 28 ° ~ 32 °, and larger angle is not only beneficial to chip removal, and can improve the stock-removing efficiency of end cutting edge.
The invention has the advantages that: the function of drill bit and milling cutter is integrated in one by the present invention, namely adopt first of end the main cutting edge and the second main cutting edge to hole, utilize the end cutting edge inlet wire keyway milling on the edge of helical flute.Therefore, when adopting the present invention to process keyway, can disposable Set and Positioning be passed through, just can by keyway machine-shaping.And the length of the first main cutting edge is greater than the second main cutting edge in the present invention, in the process that brill milling cutter rotates a circle, portion of material first excises by the second main cutting edge, then the first main cutting edge is again by remaining material removal, therefore this layers of material excision mode not only reduces cutting force, and the temperature produced when reducing cutting, improve stock-removing efficiency, cutter life is extended.In addition, the present invention is being provided with breach at the first main cutting edge and the second main cutting edge by paracentral position, and this breach can, as cutter head heat dissipation channel, prevent tool bit part temperature too high.Therefore, not only structure is simple, working (machining) efficiency is high in the present invention, good processing accuracy, and by disposable for keyway machine-shaping, can reduce processing labour intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is chip portion end construction enlarged drawing in the present invention.
Description of reference numerals: 1-handle of a knife, 2-helical flute, 3-end cutting edge, the main cutting edge of 4-first, the main cutting edge of 5-second.
Detailed description of the invention
In order to make the object of the invention, technical scheme and advantage clearly, below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment
See Fig. 1 ~ 3, a kind of keyway of the present invention bores milling cutter, comprise handle of a knife 1 and chip portion, chip portion is run through and has twice helical flute 2, the edge of helical flute 2 is provided with end cutting edge 3, the first main cutting edge 4 and the second main cutting edge 5 is provided with in the end in chip portion, the cutting edge of described first main cutting edge 4 and the second main cutting edge 5 is arranged on the same straight line by center line, and the first main cutting edge 4 and the second main cutting edge 5 are being provided with breach by paracentral position, and the size of described breach C is 0.5 ~ 3mm.The length of the described first main cutting edge 4 is D/2+B, and wherein D is shank diameter, and B is 0.2 ~ 0.3mm; Described end cutting edge 3 is 28 ° ~ 32 ° with the angle α of horizontal plane.Therefore, the function of drill bit and milling cutter is integrated in one by the present invention, namely adopts first of end the main cutting edge 4 and the second main cutting edge 5 to hole, utilizes the end cutting edge 3 inlet wire keyway milling on the edge of helical flute 2.Therefore, when adopting the present invention to process keyway, disposable Set and Positioning can be passed through, just can by keyway machine-shaping, and the length of the first main cutting edge 4 is greater than the second main cutting edge in the present invention, in the process that brill milling cutter rotates a circle, second main cutting edge is first by the portion of material excision bottom dowel hole, then the first main cutting edge 4 is again by remaining material removal, therefore this layers of material excision mode not only reduces cutting force, and the temperature produced when reducing cutting, improve stock-removing efficiency, cutter life is extended.

Claims (4)

1. a keyway bores milling cutter, comprise handle of a knife (1) and chip portion, it is characterized in that: run through in chip portion and have twice helical flute (2), the edge of helical flute (2) is provided with end cutting edge (3), the first main cutting edge (4) and the second main cutting edge (5) is provided with in the end in chip portion, the cutting edge of described first main cutting edge (4) and the second main cutting edge (5) is arranged on the same straight line by center line, and the first main cutting edge (4) and the second main cutting edge (5) are being provided with breach by paracentral position.
2. keyway according to claim 1 bores milling cutter, it is characterized in that: the length of the described first main cutting edge (4) is D/2+B, and wherein D is shank diameter, and B is 0.2 ~ 0.3mm.
3. keyway according to claim 1 bores milling cutter, it is characterized in that: the size of described breach C is 0.5 ~ 3mm.
4. keyway according to claim 1 bores milling cutter, it is characterized in that: described end cutting edge (3) is 28 ° ~ 32 ° with the angle α of horizontal plane.
CN201410726683.9A 2014-12-04 2014-12-04 Key slot drill milling cutter Pending CN104690354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410726683.9A CN104690354A (en) 2014-12-04 2014-12-04 Key slot drill milling cutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410726683.9A CN104690354A (en) 2014-12-04 2014-12-04 Key slot drill milling cutter

Publications (1)

Publication Number Publication Date
CN104690354A true CN104690354A (en) 2015-06-10

Family

ID=53338115

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410726683.9A Pending CN104690354A (en) 2014-12-04 2014-12-04 Key slot drill milling cutter

Country Status (1)

Country Link
CN (1) CN104690354A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105364153A (en) * 2015-11-26 2016-03-02 株洲钻石切削刀具股份有限公司 Flat-end vertical milling cutter
CN107717339A (en) * 2017-09-08 2018-02-23 广东劲胜智能集团股份有限公司 A kind of metal shell hole machined technique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1119421A (en) * 1993-03-17 1996-03-27 桑德维克公司 End mill
JP4088271B2 (en) * 2004-06-18 2008-05-21 日進工具株式会社 Cutting tools
CN201862827U (en) * 2010-10-29 2011-06-15 厦门金鹭特种合金有限公司 Composite drilling and milling cutter
CN202555884U (en) * 2012-05-20 2012-11-28 常德翔宇设备制造有限公司 Forming milling cutter suitable for machining of convex step at bottom of deep hole
CN202606958U (en) * 2012-04-11 2012-12-19 常州创伟工具制造有限公司 Two-blade milling cutter for high-speed cutting of aluminum
CN204262456U (en) * 2014-12-04 2015-04-15 贵州西南工具(集团)有限公司 A kind of keyway bores milling cutter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1119421A (en) * 1993-03-17 1996-03-27 桑德维克公司 End mill
JP4088271B2 (en) * 2004-06-18 2008-05-21 日進工具株式会社 Cutting tools
CN201862827U (en) * 2010-10-29 2011-06-15 厦门金鹭特种合金有限公司 Composite drilling and milling cutter
CN202606958U (en) * 2012-04-11 2012-12-19 常州创伟工具制造有限公司 Two-blade milling cutter for high-speed cutting of aluminum
CN202555884U (en) * 2012-05-20 2012-11-28 常德翔宇设备制造有限公司 Forming milling cutter suitable for machining of convex step at bottom of deep hole
CN204262456U (en) * 2014-12-04 2015-04-15 贵州西南工具(集团)有限公司 A kind of keyway bores milling cutter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105364153A (en) * 2015-11-26 2016-03-02 株洲钻石切削刀具股份有限公司 Flat-end vertical milling cutter
CN107717339A (en) * 2017-09-08 2018-02-23 广东劲胜智能集团股份有限公司 A kind of metal shell hole machined technique

Similar Documents

Publication Publication Date Title
CN202861478U (en) Drilling bit
CN204108410U (en) One is used for drilling magnadure aperture flat drill bit
CN104690354A (en) Key slot drill milling cutter
CN202894453U (en) Multi-cutting edge ball end mill
CN103008735B (en) PCD (pitch circle diameter) drill bit with chip breaker groove
CN204262456U (en) A kind of keyway bores milling cutter
CN102837040A (en) Molded flat drill
CN102837035A (en) Step forming flat drill
CN203679363U (en) Forming knife for processing step holes
CN203236033U (en) Straight-shank hard-alloy spiral end milling cutter
CN103658768A (en) Forming flat drill
CN202151714U (en) Drill reamer
CN202555850U (en) Reaming and milling combined cutter
CN205764065U (en) Stepped hole drill bit
CN205414590U (en) Reamer
CN202411557U (en) Compound reamer
CN204893056U (en) Novel big chip removal bulb milling cutter of twolip
CN204194894U (en) A kind of platform reaming spiral bit continuously
CN103551634A (en) Straight-flute drill
CN203330481U (en) Straight-handle milling cutter
CN102837044A (en) Drilling reamer
CN203471016U (en) Four-edge coarse milling cutter
CN203409366U (en) Reverse rose reamer
CN203471062U (en) Six-edge reamer
CN203343499U (en) Single-blade multi-edge drilling and milling tool

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150610