CN203401117U - Twist drill with removable drill point - Google Patents
Twist drill with removable drill point Download PDFInfo
- Publication number
- CN203401117U CN203401117U CN201320384030.8U CN201320384030U CN203401117U CN 203401117 U CN203401117 U CN 203401117U CN 201320384030 U CN201320384030 U CN 201320384030U CN 203401117 U CN203401117 U CN 203401117U
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- China
- Prior art keywords
- symmetrical
- protuberance
- recess
- locating surfaces
- axial locating
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- Expired - Fee Related
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Abstract
The utility model discloses a twist drill with a removable drill point. The twist drill comprises a drill body and the drill point. A concave connecting structure is arranged at the front end part of the drill body. A convex connecting structure is arranged at the bottom end part of the drill point. The concave connecting structure of the drill body and the convex connecting structure of the drill point are engaged. According to the utility model, the drill point is removable and grinding-free, has the advantage of low cost, and truly reflects that good steel is used on a blade; the drill body has the advantages of excellent manufacture and high overall precision, and can be widely used in general and numerical control equipment; and the twist drill avoids regrinding, which is convenient for customers in many aspects and is conductive to market promotion.
Description
Technical field
The utility model relates to a kind of fluted drill, particularly a kind of fluted drill of interchangeable apex point.
Background technology
Multiple-cutting-edge point (Ni Zhifu drill) drill bit and the industrialization of Zhou Shi drill bit product are several generations' targets.Domestic have a lot of relevant enterprises in the promotion of doing multiple-cutting-edge point (Ni Zhifu drill) drill bit industry.Although the difficulty of refacing, the cognition of business circles is also different, need to solve a lot of problems, outstanding contradiction concentrates on secondary and refaces, and makes popularization run into a bottle strength, for client considers, it is loose mail that a lot of clients use drill bit specification and the large portion of quantity, also cannot be consistent on service time, make collect and reface and feel loaded down with trivial details, bad operation in the factors such as time place.
Therefore, how solving the secondary problem such as reface, is the main difficult technical that must solve in promoting multiple-cutting-edge point (Ni Zhifu drill) drill bit and Zhou Shi drill bit process.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of low cost of manufacture and the fluted drill of the interchangeable apex point that is user-friendly to.
Above-mentioned purpose of the present utility model reaches by the following technical programs:
A fluted drill for interchangeable apex point, comprises drill body and apex point, it is characterized in that: the leading section of described drill body is provided with recess syndeton; The bottom of described apex point is provided with protuberance syndeton, and the recess syndeton of described drill body engages with the protuberance syndeton of described apex point.
A kind of optimal technical scheme, it is characterized in that: described recess syndeton comprises two symmetrical recess radial location faces, two symmetrical recess cylindrical hole mating surfaces, two symmetrical recess cylindrical hole locating surfaces, two symmetrical recess the first axial locating surfaces, two symmetrical recess the second axial locating surfaces, recess bottom center face, two symmetrical concave portion bits spiral camber bodies; Described recess radial location face is mutually vertical with described recess the first axial locating surface and described recess the second axial locating surface; Described recess the first axial locating surface is parallel with described recess the second axial locating surface; Described recess cylindrical hole mating surface and described recess cylindrical hole locating surface are mutually vertical with described recess the second axial locating surface with described recess the first axial locating surface respectively;
Described protuberance syndeton comprises two symmetrical protuberance radial location faces, two symmetrical protuberance cylindrical fit faces, two symmetrical protuberance cylinder locating surfaces, two symmetrical protuberance the first axial locating surfaces, two symmetrical protuberance the second axial locating surfaces, protuberance top median plane, two symmetrical convex portion bits spiral camber bodies; Described protuberance radial location face is mutually vertical with described protuberance the first axial locating surface and described protuberance the second axial locating surface; Described protuberance the first axial locating surface is parallel with described protuberance the second axial locating surface; Described protuberance cylindrical fit face and described protuberance cylinder locating surface are mutually vertical with described protuberance the second axial locating surface with described protuberance the first axial locating surface respectively.
, it is characterized in that: the centre of described recess bottom center face is provided with centre bore position; Described protuberance top median plane is provided with the protruded stigma coordinating with described centre bore position.
, it is characterized in that: the body of described drill body is provided with two symmetrical minute bits spiral camber bodies.
, it is characterized in that: the body of described apex point is provided with two symmetrical minute bits spiral camber bodies.
The utility model has the advantage of:
1, the interchangeable mill of exempting from of apex point part.
2, apex point material can be used the best material as high speed steel or alloy, because volume is little, and relatively whole multi-blade pointed drill, cost is low, has really embodied " using the best steel to make the knife's edge ".
3, drill body can be perfect in workmanship, and overall precision is high, can be widely used in common and numerical control device.
4, exempt to reface (changing apex point) make a lot of aspects facilitate client, be beneficial to marketing.
Below by the drawings and specific embodiments, the utility model is described further, but and does not mean that the restriction to the utility model protection domain.
Accompanying drawing explanation
Fig. 1 is that the utility model is not with the recess syndeton of fluted drill and the structural representation of protuberance syndeton of the interchangeable apex point of centre bore position.
Fig. 2 is that the utility model is not with the structural representation of the fluted drill of the interchangeable apex point of centre bore position.
Fig. 3 is the recess syndeton of fluted drill and the structural representation of protuberance syndeton of the interchangeable apex point of the utility model band centre bore position.
Fig. 4 is the structural representation of fluted drill of the interchangeable apex point of the utility model band centre bore position.
Main description of reference numerals:
Recess cylindrical hole mating surface 1 recess radial location face 2
Recess first axial locating surface 3 recess the second axial locating surfaces 4
Recess cylindrical hole locating surface 5 recess bottom center faces 6
Concave portion bits spiral camber body 7 centre bore positions 8
Protuberance cylindrical fit face 1 ' protuberance radial location face 2 '
Protuberance first axial locating surface 3 ' protuberance the second axial locating surface 4 '
Protuberance cylinder locating surface 5 ' protuberance top median plane 6 '
Convex portion bits spiral camber body 7 ' protruded stigma 8 '
The specific embodiment
Not with the fluted drill of the interchangeable apex point of centre bore position
As shown in Figure 1, be the present embodiment not with the recess syndeton of fluted drill and the structural representation of protuberance syndeton of the interchangeable apex point of centre bore position, Fig. 2 is that the present embodiment is not with the structural representation of the fluted drill of the interchangeable apex point of centre bore position.
The fluted drill with the interchangeable apex point of centre bore position does not comprise drill body 9 and apex point 10, and the leading section of drill body 9 is provided with recess syndeton; The bottom of apex point 10 is provided with protuberance syndeton; Apex point is multiple-cutting-edge point (Ni Zhifu drill) apex point, the recess syndeton that drill body leading section is provided with comprises two symmetrical recess radial location faces 2, two symmetrical recess cylindrical hole mating surfaces 1, two symmetrical recess cylindrical hole locating surfaces 5, two symmetrical recess the first axial locating surfaces 3, two symmetrical recess the second axial locating surfaces 4,6, two symmetrical concave portion bits spiral camber bodies 7 of recess bottom center face; Recess the first axial locating surface 3 that two symmetrical recess radial location faces 2 are symmetrical with two and two symmetrical recess the second axial locating surfaces 4 are mutually vertical; Two symmetrical recess the first axial locating surfaces 3 recess second axial locating surface 4 symmetrical with two is parallel; Two symmetrical recess cylindrical hole mating surfaces 1 and two symmetrical recess cylindrical hole locating surfaces 5, recess first axial locating surface 3 symmetrical with two recess symmetrical with two the second axial locating surface 4 is mutually vertical respectively;
Protuberance syndeton comprise two symmetrical protuberance radial location faces 2 ', two symmetrical protuberance cylindrical fit faces 1 ', two symmetrical protuberance cylinder locating surfaces 5 ', two symmetrical protuberance the first axial locating surfaces 3 ', two symmetrical protuberance the second axial locating surfaces 4 ', protuberance top median plane 6 ', two symmetrical convex portion bits spiral camber bodies 7 '; Protuberance first axial locating surface 3 of two symmetrical protuberance radial location faces 2 ' symmetrical with two ' and two symmetrical protuberance the second axial locating surfaces 4 ' mutually vertical; Protuberance second axial locating surface 4 of two symmetrical protuberance the first axial locating surfaces 3 ' symmetrical with two ' parallel; Two symmetrical protuberance cylindrical fit faces 1 ' and two symmetrical protuberance cylinder locating surfaces 5 ', protuberance second axial locating surface 4 of protuberance first axial locating surface 3 symmetrical with two ' symmetrical with two ' mutually vertical respectively.
Two symmetrical concave portion bits spiral camber body 7 convex portions symmetrical with two are considered spiral camber body 7 ' engage to be worth doing.
The protuberance syndeton of the recess syndeton of the leading section of the drill body of the fluted drill of interchangeable apex point of the present utility model and the bottom of apex point can realize the docking that cooperatively interacts, utilize cutting resistance can make interchangeable apex point fixing and locking, its principle is as follows: the tip that acts on interchangeable apex point because of cutting resistance radially, and contrary with the direction of rotation of drill body, the tip that reacts on interchangeable apex point in drill body drives the process of interchangeable apex point rotation power radially makes both sides' corresponding radial location face heavy (subsides) close fixing and locking, and it is more firm that cutting resistance larger heavy (subsides) is closed fixing and locking.Cutter requires cutting resistance the smaller the better, and the working angles of cutter is to overcome the process that cutting resistance obstacle reaches cutting, and realizing like this variable resistance power is power.
The handling of the structure utilization rotation Wedged of the fluted drill of interchangeable apex point of the present utility model make drill body merge consistent coincidence with location mating surface body and the fixation postures of interchangeable apex point, and after overlapping, complete installation (changing head).
Fluted drill with the interchangeable apex point of centre bore position
As shown in Figure 3, be the recess syndeton of fluted drill and the structural representation of protuberance syndeton of the interchangeable apex point of the present embodiment band centre bore position; As shown in Figure 4, be the structural representation of fluted drill of the interchangeable apex point of the present embodiment band centre bore position, with the fluted drill of the interchangeable apex point of centre bore position, comprise drill body 9 and apex point 10, the leading section of drill body 9 is provided with recess syndeton; The bottom of apex point 10 is provided with protuberance syndeton; The recess syndeton that drill body leading section is provided with comprises two symmetrical recess radial location faces 2, two symmetrical recess cylindrical hole mating surfaces 1, two symmetrical recess cylindrical hole locating surfaces 5, two symmetrical recess the first axial locating surfaces 3, two symmetrical recess the second axial locating surfaces 4,6, two symmetrical concave portion bits spiral camber bodies 7 of recess bottom center face; The centre of recess bottom center face 6 is provided with the symmetrical recess radial location face 2 in 8, two of centre bore positions recess first axial locating surface 3 symmetrical with two and two symmetrical recess the second axial locating surfaces 4 are mutually vertical; Two symmetrical recess the first axial locating surfaces 3 recess second axial locating surface 4 symmetrical with two is parallel; Two symmetrical recess cylindrical hole mating surfaces 1 and two symmetrical recess cylindrical hole locating surfaces 5, recess first axial locating surface 3 symmetrical with two recess symmetrical with two the second axial locating surface 4 is mutually vertical respectively;
Protuberance syndeton comprise two symmetrical protuberance radial location faces 2 ', two symmetrical protuberance cylindrical fit faces 1 ', two symmetrical protuberance cylinder locating surfaces 5 ', two symmetrical protuberance the first axial locating surfaces 3 ', two symmetrical protuberance the second axial locating surfaces 4 ', protuberance top median plane 6 ', two symmetrical convex portion bits spiral camber bodies 7 '; The protruded stigma 8 that protuberance top median plane 6 ' be provided with coordinates with centre bore position '; Protuberance first axial locating surface 3 of two symmetrical protuberance radial location faces 2 ' symmetrical with two ' and two symmetrical protuberance the second axial locating surfaces 4 ' mutually vertical; Protuberance second axial locating surface 4 of two symmetrical protuberance the first axial locating surfaces 3 ' symmetrical with two ' parallel; Two symmetrical protuberance cylindrical fit faces 1 ' and two symmetrical protuberance cylinder locating surfaces 5 ', protuberance second axial locating surface 4 of protuberance first axial locating surface 3 symmetrical with two ' symmetrical with two ' mutually vertical respectively.
The fluted drill of the interchangeable apex point with centre bore position of the present embodiment because centre bore position 8 and the protruded stigma 8 that coordinates with it ' structure and make the fixing and locking of fluted drill of interchangeable apex point more accurate also more firm.
The utility model has the advantage of:
1, the interchangeable mill of exempting from of apex point part.2, apex point material can be used the best material as high speed steel or alloy, because volume is little, and relatively whole multi-blade pointed drill, cost is low, has really embodied " using the best steel to make the knife's edge ".3, drill body can be perfect in workmanship, and overall precision is high, can be widely used in common and numerical control device.4, exempt to reface (changing apex point) make a lot of aspects facilitate client, be beneficial to marketing.Embody cost degradation and high performance.
Claims (5)
1. a fluted drill for interchangeable apex point, comprises drill body and apex point, it is characterized in that: the leading section of described drill body is provided with recess syndeton; The bottom of described apex point is provided with protuberance syndeton, and the recess syndeton of described drill body engages with the protuberance syndeton of described apex point.
2. according to the fluted drill of interchangeable apex point claimed in claim 1, it is characterized in that: described recess syndeton comprises two symmetrical recess radial location faces, two symmetrical recess cylindrical hole mating surfaces, two symmetrical recess cylindrical hole locating surfaces, two symmetrical recess the first axial locating surfaces, two symmetrical recess the second axial locating surfaces, recess bottom center face, two symmetrical concave portion bits spiral camber bodies; Described two symmetrical recess radial location faces and described two symmetrical recess the first axial locating surfaces and described two symmetrical recess the second axial locating surfaces are mutually vertical; Described two symmetrical recess the first axial locating surfaces are parallel with described two symmetrical recess the second axial locating surfaces; Described two symmetrical recess cylindrical hole mating surfaces and described two symmetrical recess cylindrical hole locating surfaces are mutually vertical with described two symmetrical recess the second axial locating surfaces with described two symmetrical recessed First axial locating surfaces respectively;
Described protuberance syndeton comprises two symmetrical protuberance radial location faces, two symmetrical protuberance cylindrical fit faces, two symmetrical protuberance cylinder locating surfaces, two symmetrical protuberance the first axial locating surfaces, two symmetrical protuberance the second axial locating surfaces, protuberance top median plane, two symmetrical convex portion bits spiral camber bodies; Described two symmetrical protuberance radial location faces and described two symmetrical protuberance the first axial locating surfaces and described two symmetrical protuberance the second axial locating surfaces are mutually vertical; Described two symmetrical protuberance the first axial locating surfaces are parallel with described two symmetrical protuberance the second axial locating surfaces; Described two symmetrical protuberance cylindrical fit faces and described two symmetrical protuberance cylinder locating surfaces, protuberance second axial locating surface symmetrical with two with described two symmetrical protuberance the first axial locating surfaces is mutually vertical respectively.
3. according to the fluted drill of interchangeable apex point claimed in claim 2, it is characterized in that: the centre of described recess bottom center face is provided with centre bore position; Described protuberance top median plane is provided with the protruded stigma coordinating with described centre bore position.
4. according to the fluted drill of interchangeable apex point claimed in claim 1, it is characterized in that: the body of described drill body is provided with two symmetrical minute bits spiral camber bodies.
5. according to the fluted drill of interchangeable apex point claimed in claim 1, it is characterized in that: the body of described apex point is provided with two symmetrical minute bits spiral camber bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384030.8U CN203401117U (en) | 2013-06-30 | 2013-06-30 | Twist drill with removable drill point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320384030.8U CN203401117U (en) | 2013-06-30 | 2013-06-30 | Twist drill with removable drill point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203401117U true CN203401117U (en) | 2014-01-22 |
Family
ID=49937060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320384030.8U Expired - Fee Related CN203401117U (en) | 2013-06-30 | 2013-06-30 | Twist drill with removable drill point |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203401117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341657A (en) * | 2013-06-30 | 2013-10-09 | 北京迪蒙集智科技有限公司 | Twist drill with replaceable drill tip |
-
2013
- 2013-06-30 CN CN201320384030.8U patent/CN203401117U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103341657A (en) * | 2013-06-30 | 2013-10-09 | 北京迪蒙集智科技有限公司 | Twist drill with replaceable drill tip |
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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: 20140122 Termination date: 20190630 |