CN204108410U - One is used for drilling magnadure aperture flat drill bit - Google Patents

One is used for drilling magnadure aperture flat drill bit Download PDF

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Publication number
CN204108410U
CN204108410U CN201420506988.4U CN201420506988U CN204108410U CN 204108410 U CN204108410 U CN 204108410U CN 201420506988 U CN201420506988 U CN 201420506988U CN 204108410 U CN204108410 U CN 204108410U
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China
Prior art keywords
drill
bit
drilling
angle
rake
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Expired - Fee Related
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CN201420506988.4U
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Chinese (zh)
Inventor
艾诗文
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EISEN STATIONERY (TAICANG) Co Ltd
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EISEN STATIONERY (TAICANG) Co Ltd
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Publication of CN204108410U publication Critical patent/CN204108410U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a kind of for drilling magnadure aperture flat drill bit, this flat drill bit comprises: caudal peduncle, drill body, the drift angle of drill body is 55-65 °, minor flank and basal plane angle are 65-75 °, main cutting edge is straight sword, chisel edge end is provided with the transition face be connected with rake face, rake face and transition face form the chip area extended along bit-body axis, the axis being parallel of auxiliary-blade and drill body, the side that drill body is relative with rake face is provided with knife back face, one end, knife back face connects minor flank, the knife back face other end connects transition face, relief angle is 20 °.Main cutting edge of the present utility model is straight sword, the thickness of cutter can be reduced so that the hole of drilling smaller aperture due, drift angle is 55-65 °, make the amount of feeding large, production efficiency is high, and the relief angle of 20 ° is beneficial to chip removal, prevent broken drill, bit speed is fast, and the minor flank of 65-75 ° and basal plane angle are beneficial to the heat radiation of drill body, avoids drill bit of burning.

Description

One is used for drilling magnadure aperture flat drill bit
Technical field
The utility model relates to a kind of drill bit, and particularly one is used for drilling magnadure aperture flat drill bit.
Background technology
Machine cut processing is as the one of existing product processing method, and it occupies critical role in existing productive life.Usually need to select different cutters according to the difference of product cutting shape in existing production, and when needing machining hole, need first carry out drilling to workpiece.Drill bit must be used in the production technology of drilling.The drilling of current magnadure still adopts fluted drill, and because need machining hole diameter less in magnadure aperture drilling process, as processed below 3.5mm aperture aperture, fluted drill is utilized to process not easily chip removal, if drilling speed is controlled and is not with great difficulty fractureed, and in order to prevent fluted drill from fractureing, fluted drill must work under lower cutting speed, and its operating efficiency is low.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of for drilling magnadure aperture flat drill bit, main cutting edge is made into straight sword, the thickness of cutter can be reduced so that the hole of drilling smaller aperture due, drift angle changes to 55-65 ° from 180 degree of fluted drill, make the amount of feeding large, production efficiency is high, the relief angle of described 20 ° is beneficial to chip removal, prevent broken drill, described bit speed can reach drilling per minute 60 times, the described minor flank of described 65-75 ° and described basal plane angle are beneficial to the heat radiation of drill body, avoid drill bit of burning, thus improve drilling life of bit and allow drill bit to work under higher rotation speed.
The utility model solves the technical scheme that its technical problem adopts: described one is used for drilling magnadure aperture flat drill bit, this flat drill bit comprises: caudal peduncle, be arranged at the drill body of described caudal peduncle head, described caudal peduncle is cylindrical, described drill body is flat, the drift angle of described drill body is 55-65 °, minor flank and basal plane angle are 65-75 °, main cutting edge is straight sword, described main cutting edge extends from drill body lateral bit central, chisel edge end is provided with the transition face be connected with rake face, described rake face and described transition face form the chip area extended along described bit-body axis, the axis being parallel of auxiliary-blade and described drill body, side relative with described rake face on described drill body is provided with the knife back face parallel with described basal plane, one end, described knife back face connects described minor flank, the described knife back face other end connects described transition face, relief angle is 20 °.
In above-mentioned design, cutting edge is made into straight sword, the thickness of cutter can be reduced so that the hole of drilling smaller aperture due, drift angle changes to 55-65 ° from 180 degree of fluted drill, make the amount of feeding large, production efficiency is high, the relief angle of described 20 ° is beneficial to chip removal, prevent broken drill, described bit speed can reach drilling per minute 60 times, the described minor flank of described 65-75 ° and described basal plane angle are beneficial to the heat radiation of drill body, avoid drill bit of burning, thus improve drilling life of bit and allow drill bit to work under higher rotation speed.
As the better improvement of the design, the drift angle of described drill body is 60 °.
As the better improvement of the design, described minor flank and described basal plane angle are 70 °.
The beneficial effects of the utility model are: the utility model is made into straight sword main cutting edge, the thickness of cutter can be reduced so that the hole of drilling smaller aperture due, drift angle changes to 55-65 ° from 180 degree of fluted drill, make the amount of feeding large, production efficiency is high, the relief angle of described 20 ° is beneficial to chip removal, prevent broken drill, described bit speed can reach drilling per minute 60 times, the described minor flank of described 65-75 ° and described basal plane angle are beneficial to the heat radiation of drill body, avoid drill bit of burning, thus improve drilling life of bit and allow drill bit to work under higher rotation speed.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is orthographic projection structural representation in drill body end of the present utility model;
Fig. 3 is drill body end of the present utility model perspective view;
Fig. 4 is drill body side structure schematic diagram of the present utility model.
1. caudal peduncles, 2. drill body, 3. basal plane, 4. chisel edge in the drawings, 5. main cutting edge, 6. chip area, 7. minor flank, 8. rake face, 9. transition face, 10. auxiliary-blade, 11. knife back faces, a. drift angle, b. relief angle.
Detailed description of the invention
The utility model is described in detail, illustrative examples wherein and illustrate and be only used for explaining the utility model below in conjunction with accompanying drawing and specific embodiment, but not as to restriction of the present utility model.
Embodiment 1: as shown in the figure, described one is used for drilling magnadure aperture flat drill bit, this flat drill bit comprises: caudal peduncle 1, be arranged at the drill body 2 of described caudal peduncle 1 head, described caudal peduncle 1 is cylindrical, described drill body 2 is flat, the drift angle a of described drill body 2 is 55 °, minor flank 7 and basal plane 3 angle are 65 °, main cutting edge 5 is straight sword, described main cutting edge extends from drill body 2 lateral bit central, chisel edge 4 end is provided with the transition face 9 be connected with rake face 8, described rake face 8 and described transition face 9 form the chip area 6 along described drill body 2 Axis Extension, the axis being parallel of auxiliary-blade 10 and described drill body 2, side relative with described rake face 8 on described drill body 2 is provided with the knife back face 11 parallel with described basal plane 3, one end, described knife back face 11 connects described minor flank 7, described knife back face 11 other end connects described transition face 9, relief angle b is 20 °.
In above-mentioned design, main cutting edge 5 is made into straight sword, the thickness of cutter can be reduced so that the hole of drilling smaller aperture due, drift angle a changes to 55 ° from 180 degree of fluted drill, make the amount of feeding large, production efficiency is high, the relief angle b of described 20 ° is beneficial to chip removal, prevent broken drill, described bit speed can reach drilling per minute 60 times, the described minor flank 7 of described 65 ° and described basal plane 3 angle are beneficial to the heat radiation of drill body 2, avoid drill bit of burning, thus improve drilling life of bit and allow drill bit to work under higher rotation speed.
Embodiment 2: as shown in the figure, described one is used for drilling magnadure aperture flat drill bit, this flat drill bit comprises: caudal peduncle 1, be arranged at the drill body 2 of described caudal peduncle 1 head, described caudal peduncle 1 is cylindrical, described drill body 2 is flat, the drift angle a of described drill body 2 is 65 °, minor flank 7 and basal plane 3 angle are 75 °, main cutting edge 5 is straight sword, described main cutting edge extends from drill body 2 lateral bit central, chisel edge 4 end is provided with the transition face 9 be connected with rake face 8, described rake face 8 and described transition face 9 form the chip area 6 along described drill body 2 Axis Extension, the axis being parallel of auxiliary-blade 10 and described drill body 2, side relative with described rake face 8 on described drill body 2 is provided with the knife back face 11 parallel with described basal plane 3, one end, described knife back face 11 connects described minor flank 7, described knife back face 11 other end connects described transition face 9, relief angle b is 20 °.
In above-mentioned design, main cutting edge 5 is made into straight sword, the thickness of cutter can be reduced so that the hole of drilling smaller aperture due, drift angle a changes to 65 ° from 180 degree of fluted drill, make the amount of feeding large, production efficiency is high, the relief angle b of described 20 ° is beneficial to chip removal, prevent broken drill, described bit speed can reach drilling per minute 60 times, the described minor flank 7 of described 75 ° and described basal plane 3 angle are beneficial to the heat radiation of drill body 2, avoid drill bit of burning, thus improve drilling life of bit and allow drill bit to work under higher rotation speed.
Embodiment: 3: as shown in the figure, described one is used for drilling magnadure aperture flat drill bit, this flat drill bit comprises: caudal peduncle 1, be arranged at the drill body 2 of described caudal peduncle 1 head, described caudal peduncle 1 is cylindrical, described drill body 2 is flat, the drift angle a of described drill body 2 is 60 °, minor flank 7 and basal plane 3 angle are 70 °, main cutting edge 5 is straight sword, described main cutting edge extends from drill body 2 lateral bit central, chisel edge 4 end is provided with the transition face 9 be connected with rake face 8, described rake face 8 and described transition face 9 form the chip area 6 along described drill body 2 Axis Extension, the axis being parallel of auxiliary-blade 10 and described drill body 2, side relative with described rake face 8 on described drill body 2 is provided with the knife back face 11 parallel with described basal plane 3, one end, described knife back face 11 connects described minor flank 7, described knife back face 11 other end connects described transition face 9, relief angle b is 20 °.
In above-mentioned design, main cutting edge 5 is made into straight sword, the thickness of cutter can be reduced so that the hole of drilling smaller aperture due, drift angle a changes to 60 ° from 180 degree of fluted drill, make the amount of feeding large, production efficiency is high, the relief angle b of described 20 ° is beneficial to chip removal, prevent broken drill, described bit speed can reach drilling per minute 60 times, the described minor flank 7 of described 70 ° and described basal plane 3 angle are beneficial to the heat radiation of drill body 2, avoid drill bit of burning, thus improve drilling life of bit and allow drill bit to work under higher rotation speed.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (3)

1. one kind for drilling magnadure aperture flat drill bit, this flat drill bit comprises: caudal peduncle, be arranged at the drill body of described caudal peduncle head, described caudal peduncle is cylindrical, it is characterized in that: described drill body is flat, the drift angle of described drill body is 55-65 °, minor flank and basal plane angle are 65-75 °, main cutting edge is straight sword, described main cutting edge extends from drill body lateral bit central, chisel edge end is provided with the transition face be connected with rake face, described rake face and described transition face form the chip area extended along described bit-body axis, the axis being parallel of auxiliary-blade and described drill body, side relative with described rake face on described drill body is provided with the knife back face parallel with described basal plane, one end, described knife back face connects described minor flank, the described knife back face other end connects described transition face, relief angle is 20 °.
2. one according to claim 1 is used for drilling magnadure aperture flat drill bit, it is characterized in that, the drift angle of described drill body is 60 °.
3. one according to claim 1 is used for drilling magnadure aperture flat drill bit, it is characterized in that, described minor flank and described basal plane angle are 70 °.
CN201420506988.4U 2014-09-04 2014-09-04 One is used for drilling magnadure aperture flat drill bit Expired - Fee Related CN204108410U (en)

Priority Applications (1)

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CN201420506988.4U CN204108410U (en) 2014-09-04 2014-09-04 One is used for drilling magnadure aperture flat drill bit

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104842127A (en) * 2015-05-29 2015-08-19 东莞豪顺家具有限公司 Fast machining method of rivet with bottom hole and for back plate
CN105345098A (en) * 2015-12-09 2016-02-24 湖南科技大学 Hole machining drill bit and hole machining method suitable for carbon fiber composite materials
CN107127377A (en) * 2017-05-15 2017-09-05 海安国洋机械科技有限公司 A kind of straight sword drill bit
CN112428028A (en) * 2020-11-20 2021-03-02 长江大学 Auxiliary blade processing method for plastic product drilling processing drill bit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104842127A (en) * 2015-05-29 2015-08-19 东莞豪顺家具有限公司 Fast machining method of rivet with bottom hole and for back plate
CN105345098A (en) * 2015-12-09 2016-02-24 湖南科技大学 Hole machining drill bit and hole machining method suitable for carbon fiber composite materials
CN107127377A (en) * 2017-05-15 2017-09-05 海安国洋机械科技有限公司 A kind of straight sword drill bit
CN112428028A (en) * 2020-11-20 2021-03-02 长江大学 Auxiliary blade processing method for plastic product drilling processing drill bit

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EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150121

Termination date: 20150904