CN203863085U - Twist drill for easy chip removal - Google Patents
Twist drill for easy chip removal Download PDFInfo
- Publication number
- CN203863085U CN203863085U CN201420255886.XU CN201420255886U CN203863085U CN 203863085 U CN203863085 U CN 203863085U CN 201420255886 U CN201420255886 U CN 201420255886U CN 203863085 U CN203863085 U CN 203863085U
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- CN
- China
- Prior art keywords
- chip removal
- chip
- twist drill
- utility
- twist
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a twist drill for easy chip removal, which comprises a twist drill rod, wherein a front end of the twist drill rod is provided with three cutting blades; the twist dill rod and the cutting blades are integrally molded; the angle between the adjacent cutting blades is 120 DEG; and the twist drill for easy chip removal is characterized in that two ends of each cutting blade is outwardly expanded to form an arc flap shape with a sharp corner; a chip removal groove is opened on the arc-shaped face of each cutting blade; and a plurality of chip removal holes are formed in a chip receiving groove formed by the three cutting blades. Each cutting blade is arranged as two outwardly expanded ends to form the arc flap shape with the sharp corner, so the supplying amount for a single running in an operation is large and the hole-drilling speed is fast; the chip removal groove the chip removal holes are adopted as well, so the performance of chip removal of the twist drill is greatly increased, and the use effect is improved.
Description
Technical field
the utility model belongs to hardware products field, relates to a kind of fluted drill, relates in particular to a kind of fluted drill of being convenient to chip removal.
Background technology
at present, in the operating process of use Twist Drill, tend to run into a lot of problems, one of them is not easy to chip removal exactly.The one four sword fluted drills of announcing according to Chinese patent CN 202162429 U, structure is formed in one, this fluted drill comprises a cylindrical knife shank, handle of a knife front end is connected with a twist drill rods, described drilling rod has 4 cutting edges, and the angle between adjacent two-edged is 90 °, and described each cutting edge all has a rake face, one major flank and a minor flank, have chip pocket between adjacent two swords.This fluted drill has compared with multi-tool edge, singly turns the amount of feeding large when operation, and penetration rate is fast, and operating efficiency promotes greatly, but still cannot solve the problem of chip removal, if can not in time chip be discharged, will affect the result of use of fluted drill.
Utility model content
the utility model, in order to overcome deficiency of the prior art, provides a kind of fluted drill of being convenient to chip removal.
the utility model is to be achieved through the following technical solutions:
a fluted drill of being convenient to chip removal, comprises twist drill rods, is provided with three cutoff edges at the front end of twist drill rods, it is characterized in that: outside the two ends of described cutoff edge, open and form arc lobe shape, and with wedge angle, on cutoff edge arcwall face, offer chip area; In the chip pocket being formed by three cutoff edges, offer multiple chip-removal holes.
as optimal technical scheme of the present utility model, the angle between described adjacent cutoff edge is 120 degree.
as optimal technical scheme of the present utility model, described chip-removal hole is circular hole.
as optimal technical scheme of the present utility model, described twist drill rods and cutoff edge are one-body molded.
compared with prior art, the beneficial effects of the utility model are: form arc lobe shape by cutoff edge being arranged to open outside two ends, and with wedge angle, singly turn the amount of feeding large in the time of operation, penetration rate is fast; Be provided with chip area and chip-removal hole simultaneously, can improve widely the chip removal performance of fluted drill, improve its result of use.
Brief description of the drawings
fig. 1 is front view of the present utility model;
fig. 2 is upward view of the present utility model.
in figure: 1-twist drill rods; 2-cutoff edge; 3-chip area; 4-chip-removal hole.
Detailed description of the invention
in order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
refer to Fig. 1 and Fig. 2, Fig. 1 is front view of the present utility model, and Fig. 2 is upward view of the present utility model.
described a kind of fluted drill of being convenient to chip removal, comprises twist drill rods 1, is provided with three cutoff edges 2 at the front end of twist drill rods 1, and the angle between adjacent cutoff edge 2 is 120 degree.Outside the two ends of described cutoff edge 2, open and form arc lobe shape, and with wedge angle, on cutoff edge 2 arcwall faces, offer chip area 3; In the chip pocket being formed by three cutoff edges 2, offer multiple chip-removal holes 4, described chip-removal hole 4 is circular hole.Form arc lobe shape by cutoff edge 2 being arranged to open outside two ends, and with wedge angle, singly turn the amount of feeding large in the time of operation, penetration rate is fast; Be provided with chip area 3 and chip-removal hole 4 simultaneously, can improve widely the chip removal performance of fluted drill, improve its result of use.
described twist drill rods 1 is one-body molded with cutoff edge 2, and in the service life of being convenient to improve fluted drill, fluted drill adopts wear-resistant material to make.
the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. be convenient to the fluted drill of chip removal for one kind, comprise twist drill rods (1), be provided with three cutoff edges (2) at the front end of twist drill rods (1), it is characterized in that: outside the two ends of described cutoff edge (2), open and form arc lobe shape, and with wedge angle, on cutoff edge (2) arcwall face, offer chip area (3); In the chip pocket being formed by three cutoff edges (2), offer multiple chip-removal holes (4).
2. a kind of fluted drill of being convenient to chip removal according to claim 1, is characterized in that: the angle between adjacent cutoff edge (2) is 120 degree.
3. a kind of fluted drill of being convenient to chip removal according to claim 1, is characterized in that: described chip-removal hole (4) is circular hole.
4. a kind of fluted drill of being convenient to chip removal according to claim 1, is characterized in that: described twist drill rods (1) is one-body molded with cutoff edge (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255886.XU CN203863085U (en) | 2014-05-20 | 2014-05-20 | Twist drill for easy chip removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255886.XU CN203863085U (en) | 2014-05-20 | 2014-05-20 | Twist drill for easy chip removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203863085U true CN203863085U (en) | 2014-10-08 |
Family
ID=51644075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420255886.XU Expired - Fee Related CN203863085U (en) | 2014-05-20 | 2014-05-20 | Twist drill for easy chip removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203863085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192762A (en) * | 2020-10-25 | 2021-01-08 | 陈进 | Multi-functional building wall reforms transform drilling equipment |
-
2014
- 2014-05-20 CN CN201420255886.XU patent/CN203863085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192762A (en) * | 2020-10-25 | 2021-01-08 | 陈进 | Multi-functional building wall reforms transform drilling equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141008 Termination date: 20160520 |