CN204673023U - Composite multipurpose drill bit - Google Patents
Composite multipurpose drill bit Download PDFInfo
- Publication number
- CN204673023U CN204673023U CN201520182315.2U CN201520182315U CN204673023U CN 204673023 U CN204673023 U CN 204673023U CN 201520182315 U CN201520182315 U CN 201520182315U CN 204673023 U CN204673023 U CN 204673023U
- Authority
- CN
- China
- Prior art keywords
- drillstock
- connecting portion
- trip bolt
- locating surface
- hollow boring
- 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
Links
Abstract
The utility model discloses a kind of composite multipurpose drill bit, it comprises: drillstock, and drillstock has connecting portion and installs clamping part, and connecting portion is provided with locating surface and fastening screw pit, is also provided with blind hole in drillstock; Fluted drill, its standing part is inserted in blind hole, and its standing part is provided with cooperation locating surface; First trip bolt, it is threaded connection in fastening screw pit, and the bottom of the first trip bolt is connected on cooperation locating surface to be pressed abd fixed in blind hole by fluted drill; Hollow boring bit, it is sleeved on connecting portion, and hollow boring bit is provided with screwed hole, and fluted drill is positioned at the center of hollow boring bit; Second trip bolt, it is threaded connection in screwed hole, and the bottom of the second trip bolt is connected on locating surface to be fixed on connecting portion by hollow boring bit.The utility model drilling ability is strong, and drilling quality is high, and structure is simple, and once can complete boring and reaming processing tasks.
Description
Technical field
The utility model relates to a kind of composite multipurpose drill bit, belongs to bit technique field.
Background technology
At present, the drill bit of common use mostly is single type, when drilling larger aperture workpiece, typically use a little drill bit first to drill through, and then change this drill bit, then remove second reaming with larger drill bit, operating time and labour intensity and operating efficiency all do not reach good effect.
Summary of the invention
Technical problem to be solved in the utility model is the defect overcoming prior art, provides a kind of composite multipurpose drill bit, and its drilling ability is strong, and drilling quality is high, and structure is simple, and once can complete boring and reaming processing tasks.
The utility model solves the problems of the technologies described above the technical scheme taked: a kind of composite multipurpose drill bit, and it comprises:
Drillstock, drillstock has connecting portion and installs clamping part, and connecting portion is provided with locating surface and fastening screw pit, is also provided with blind hole in drillstock;
Fluted drill, its standing part is inserted in blind hole, and its standing part is provided with cooperation locating surface;
First trip bolt, it is threaded connection in fastening screw pit, and the bottom of the first trip bolt is connected on cooperation locating surface to be pressed abd fixed in blind hole by fluted drill;
Hollow boring bit, it is sleeved on connecting portion, and hollow boring bit is provided with screwed hole, and described fluted drill is positioned at the center of hollow boring bit;
Second trip bolt, it is threaded connection in screwed hole, and the bottom of the second trip bolt is connected on locating surface to be fixed on connecting portion by hollow boring bit.
The further technical problem to be solved of the utility model is: improve cooling effect, and fluted drill is axially provided with liquid cooling hole along it, and described drillstock is axially provided with cooling fluid apertures along it, and cools fluid apertures and be connected with liquid cooling hole.
Conveniently clamp this composite multipurpose drill bit further, the outer wall on the installation clamping part of drillstock is provided with clamping plane.
Further, drillstock is made of plastics.
Further, the cross section of the installation clamping part of drillstock is regular hexagon structure.
After have employed technique scheme, fluted drill and hollow boring bit concentrate on a drillstock by the utility model, and fluted drill is positioned at the center of hollow boring bit, fluted drill is used for holing, hollow boring bit is used for reaming, once can complete boring and reaming processing tasks, and drilling ability is strong, drilling quality is high, and structure is simple; In addition, the utility model is provided with liquid cooling hole in fluted drill, and drillstock is provided with cooling fluid apertures, and liquid cooling hole is connected with cooling fluid apertures, so just cooling fluid can be flow to fluted drill, realizes fully cooling.
Accompanying drawing explanation
Fig. 1 is the structure sectional view of composite multipurpose drill bit of the present utility model.
Detailed description of the invention
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail.
As shown in Figure 1, a kind of composite multipurpose drill bit, it comprises:
Drillstock 1, drillstock 1 has connecting portion 11 and installs clamping part 12, and connecting portion 11 is provided with locating surface 111 and fastening screw pit, is also provided with blind hole in drillstock 1;
Fluted drill 2, its standing part is inserted in blind hole, and its standing part is provided with cooperation locating surface 21;
First trip bolt 5, it is threaded connection in fastening screw pit, and the bottom of the first trip bolt 5 is connected on cooperation locating surface 21 to be pressed abd fixed in blind hole by fluted drill 2;
Hollow boring bit 3, it is sleeved on connecting portion 11, and hollow boring bit 3 is provided with screwed hole, and described fluted drill 2 is positioned at the center of hollow boring bit 3;
Second trip bolt 4, it is threaded connection in screwed hole, and the bottom of the second trip bolt 4 is connected on locating surface 111 to be fixed on connecting portion 11 by hollow boring bit 3.
As shown in Figure 1, fluted drill 2 is axially provided with liquid cooling hole 22 along it, and drillstock 1 is axially provided with cooling fluid apertures 13 along it, and cools fluid apertures 13 and be connected with liquid cooling hole 22.
As shown in Figure 1, the outer wall on the installation clamping part 12 of drillstock 1 is provided with clamping plane 121.
Drillstock 1 is made of plastics, but is not limited thereto.
The cross section of the installation clamping part 12 of drillstock 1 is regular hexagon structure.
Operation principle of the present utility model is as follows:
Fluted drill 2 and hollow boring bit 3 concentrate on a drillstock 1 by the utility model, and fluted drill 2 is positioned at the center of hollow boring bit 3, fluted drill 2 is used for holing, hollow boring bit 3 is used for reaming, once can complete boring and reaming processing tasks, and drilling ability is strong, and drilling quality is high, and structure is simple; In addition, the utility model is provided with liquid cooling hole 22 in fluted drill 2, and drillstock 1 is provided with cooling fluid apertures 13, and liquid cooling hole 22 is connected with cooling fluid apertures 13, so just cooling fluid can be flow to fluted drill 2, realizes fully cooling.
Above-described specific embodiment; technical problem, technical scheme and beneficial effect that the utility model solves are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a composite multipurpose drill bit, is characterized in that: it comprises:
Drillstock (1), drillstock (1) has connecting portion (11) and installs clamping part (12), and connecting portion (11) is provided with locating surface (111) and fastening screw pit, drillstock is also provided with blind hole in (1);
Fluted drill (2), its standing part is inserted in blind hole, and its standing part is provided with cooperation locating surface (21);
First trip bolt (5), it is threaded connection in fastening screw pit, and the bottom of the first trip bolt (5) is connected to cooperation locating surface (21) above to be pressed abd fixed in blind hole by fluted drill (2);
Hollow boring bit (3), it is sleeved on connecting portion (11), and hollow boring bit (3) is provided with screwed hole, and described fluted drill (2) is positioned at the center of hollow boring bit (3);
Second trip bolt (4), it is threaded connection in screwed hole, and the bottom of the second trip bolt (4) is connected to locating surface (111) above to be fixed on connecting portion (11) by hollow boring bit (3).
2. composite multipurpose drill bit according to claim 1, it is characterized in that: described fluted drill (2) is axially provided with liquid cooling hole (22) along it, described drillstock (1) is axially provided with cooling fluid apertures (13) along it, and cools fluid apertures (13) and be connected with liquid cooling hole (22).
3. composite multipurpose drill bit according to claim 1 and 2, is characterized in that: the outer wall on the installation clamping part (12) of described drillstock (1) is provided with clamping plane (121).
4. composite multipurpose drill bit according to claim 1 and 2, is characterized in that: described drillstock (1) is made of plastics.
5. composite multipurpose drill bit according to claim 1 and 2, is characterized in that: the cross section of the installation clamping part (12) of described drillstock (1) is regular hexagon structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182315.2U CN204673023U (en) | 2015-03-27 | 2015-03-27 | Composite multipurpose drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182315.2U CN204673023U (en) | 2015-03-27 | 2015-03-27 | Composite multipurpose drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204673023U true CN204673023U (en) | 2015-09-30 |
Family
ID=54172746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520182315.2U Expired - Fee Related CN204673023U (en) | 2015-03-27 | 2015-03-27 | Composite multipurpose drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204673023U (en) |
-
2015
- 2015-03-27 CN CN201520182315.2U patent/CN204673023U/en not_active Expired - Fee Related
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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: 20150930 Termination date: 20160327 |