CN204735759U - Composite drill bit convenient to centre gripping - Google Patents
Composite drill bit convenient to centre gripping Download PDFInfo
- Publication number
- CN204735759U CN204735759U CN201520182314.8U CN201520182314U CN204735759U CN 204735759 U CN204735759 U CN 204735759U CN 201520182314 U CN201520182314 U CN 201520182314U CN 204735759 U CN204735759 U CN 204735759U
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- CN
- China
- Prior art keywords
- drillstock
- connecting portion
- bit
- locating surface
- hole
- 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 discloses a composite drill bit convenient to centre gripping, it includes: drillstock, drillstock have connecting portion and installation clamping part to being provided with locating surface and fastening screw pit on the connecting portion, still being provided with the blind hole in the drillstock, the tail end of installation clamping part is provided with the hexagonal cylinder, and open and have annular positioning groove, still is provided with a plurality of axial positioning grooves on the outer wall of installation clamping part on the hexagonal cylinder, the fluted drill, its fixed portion cartridge is in the blind hole to be provided with the cooperation locating surface on its fixed portion, a fastening screw, it is through threaded connection at fastening threaded hole to a fastening screw's bottom butt is on the cooperation locating surface, core bit, its suit is on connecting portion to the last screw hole that is provided with of core bit, fluted drill are located core bit's center department, the 2nd fastening screw, it is through threaded connection at threaded hole. The utility model discloses drilling and reaming processing task not only can be once accomplished, various different kinds of converter centre grippings can be adapted to moreover.
Description
Technical field
The utility model relates to a kind of composite drill bit being convenient to clamp, and 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.In addition, in actual machine processing, use bit bore to account for very large proportion, traditional drill bit shank, often do not match with the various converters often adopted, make troubles to processing, also have, drill bit is the cutter that boring is commonly used, drill bit is when holing, mainly through cutter head top, workpiece is cut, by chip area, chip is discharged, if chip can not be discharged very smoothly, the hole inwall bored then can be caused to occur cut, workpiece is even caused to become waste product, chip removal is slow, there is cut in easy causing hole inwall, in the process of cutting, pulverous iron filings are not easy to discharge from chip-removal hole, easily cut is produced to hole inwall when being deposited in position of tool tip, simultaneously, when cutter head being cooled in working angles, because chip area needs ceaselessly to carry out chip removal process, cooling fluid is not easy to enter into position of tool tip, make corner wear very fast, affect operating efficiency, in the process of cutting for a long time, chuck easily produces loosening, thus affect drill bit.
Summary of the invention
Technical problem to be solved in the utility model is the defect overcoming prior art, and provide a kind of composite drill bit being convenient to clamp, it once can not only complete boring and reaming processing tasks, and can adapt to the clamping of various dissimilar converter.
The utility model solves the problems of the technologies described above the technical scheme taked: a kind of composite drill bit being convenient to clamp, and it comprises:
Drillstock, drillstock has connecting portion and installs clamping part, and connecting portion is provided with locating surface and fastening screw pit, also blind hole is provided with in drillstock, the tail end installing clamping part is provided with hexagonal cylinder, and hexagonal cylinder has annular positioning groove, the outer wall of installation clamping part is also provided with multiple axial location groove;
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.
The further technical problem to be solved of the utility model is: be conducive to chip removal and cooling, the top of the cutting tip of fluted drill is provided with apex point, the outer wall of cutting tip is provided with some cutting edges and chip area, and chip area, between adjacent cutting edge, cutting edge is provided with spiral guide slot
Further, drillstock is made of plastics.
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 boring, and hollow boring bit is used for reaming, once can complete boring and reaming processing tasks, have the hexagonal cylinder of annular positioning groove, be adapted to the clamping of hexagon converter, this converter is the structure with spring and steel ball, by the annular positioning groove on fixing hexagonal cylinder, locking drill bit; Axial location groove can adapt to dissimilar converter clamping; Fluted drill carries out boring process by apex point and cutting edge to product, in the process of boring, carry out outside tap by chip area to iron filings, meanwhile, iron filings powder also can be discharged by spiral guide slot, when cooling drill bit, cooling fluid can be made to be fed directly to apex point place by spiral guide slot, make the cooling effect at apex point place better, longer service life, structure is simple, fixation, excretion is smooth and easy, cooling is quick, operating efficiency is high, long service life; 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 the inside of fluted drill, realizes fully cooling further.
Accompanying drawing explanation
Fig. 1 is the structure sectional view being convenient to the composite drill bit clamped of the present utility model;
Fig. 2 is the structural representation of fluted drill of the present utility model;
Fig. 3 is the partial schematic diagram of the afterbody of drillstock of the present utility model;
Fig. 4 is the A-A sectional view of Fig. 3;
Fig. 5 is the B-B sectional view of Fig. 3.
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 Fig. 1 ~ 5, a kind of composite drill bit being convenient to clamp, 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, also blind hole is provided with in drillstock 1, the tail end installing clamping part 12 is provided with hexagonal cylinder 121, and hexagonal cylinder 121 has annular positioning groove 122, the outer wall of installation clamping part 12 is also provided with multiple axial location groove 123;
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 fastening screw 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 2, the top of the cutting tip 27 of fluted drill 2 is provided with apex point 23, the outer wall of cutting tip 27 is provided with some cutting edges 24 and chip area 26, and chip area 26 is between adjacent cutting edge 24, cutting edge 24 is provided with spiral guide slot 25
Drillstock 1 is made of plastics, but is not limited thereto.
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, have the hexagonal cylinder 121 of annular positioning groove 122, be adapted to the clamping of hexagon converter, this converter is the structure with spring and steel ball, by the annular positioning groove 122 on fixing hexagonal cylinder 121, and locking drill bit; Axial location groove 123 can adapt to dissimilar converter clamping; Fluted drill 2 carries out boring process by apex point 23 and cutting edge 24 pairs of products, in the process of boring, undertaken outside tap by chip area 26 pairs of iron filings, meanwhile, iron filings powder also can be discharged, when cooling drill bit by spiral guide slot 25, cooling fluid can be made to be fed directly to apex point place by spiral guide slot 25, make the cooling effect at apex point place better, longer service life, structure is simple, fixation, excretion is smooth and easy, cooling is quick, operating efficiency is high.
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 (4)
1. be convenient to the composite drill bit clamped, it 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), the tail end installing clamping part (12) is provided with hexagonal cylinder (121), and hexagonal cylinder (121) has annular positioning groove (122), the outer wall of installation clamping part (12) is also provided with multiple axial location groove (123);
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. the composite drill bit being convenient to clamp 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. the composite drill bit being convenient to clamp according to claim 1 and 2, it is characterized in that: the top of the cutting tip (27) of fluted drill (2) is provided with apex point (23), the outer wall of cutting tip (27) is provided with some cutting edges (24) and chip area (26), and chip area (26) is positioned between adjacent cutting edge (24), cutting edge (24) is provided with spiral guide slot (25).
4. the composite drill bit being convenient to clamp according to claim 1 and 2, is characterized in that: described drillstock (1) is made of plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182314.8U CN204735759U (en) | 2015-03-27 | 2015-03-27 | Composite drill bit convenient to centre gripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520182314.8U CN204735759U (en) | 2015-03-27 | 2015-03-27 | Composite drill bit convenient to centre gripping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204735759U true CN204735759U (en) | 2015-11-04 |
Family
ID=54417518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520182314.8U Expired - Fee Related CN204735759U (en) | 2015-03-27 | 2015-03-27 | Composite drill bit convenient to centre gripping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204735759U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2545333A (en) * | 2015-11-27 | 2017-06-14 | Holemaker Tech Ltd | Drill bits |
| CN107511511A (en) * | 2017-09-20 | 2017-12-26 | 江苏天工工具有限公司 | A kind of high intensity scrap easily discharges drill bit |
| CN111980588A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | Drill bit convenient to equipment |
| CN112658341A (en) * | 2020-12-18 | 2021-04-16 | 成都佳驰电子科技有限公司 | Drill bit for testing aramid paper honeycomb sample by coaxial transmission reflection method |
| CN113118516A (en) * | 2021-04-16 | 2021-07-16 | 董希仁 | Hollow positioning drill bit |
| CN114226805A (en) * | 2021-12-23 | 2022-03-25 | 浙江欣兴工具股份有限公司 | Portable drilling support device |
-
2015
- 2015-03-27 CN CN201520182314.8U patent/CN204735759U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2545333A (en) * | 2015-11-27 | 2017-06-14 | Holemaker Tech Ltd | Drill bits |
| GB2545333B (en) * | 2015-11-27 | 2019-09-25 | Holemaker Tech Limited | A metalworking cutting device with three screw recesses |
| CN107511511A (en) * | 2017-09-20 | 2017-12-26 | 江苏天工工具有限公司 | A kind of high intensity scrap easily discharges drill bit |
| CN111980588A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | Drill bit convenient to equipment |
| CN112658341A (en) * | 2020-12-18 | 2021-04-16 | 成都佳驰电子科技有限公司 | Drill bit for testing aramid paper honeycomb sample by coaxial transmission reflection method |
| CN113118516A (en) * | 2021-04-16 | 2021-07-16 | 董希仁 | Hollow positioning drill bit |
| CN114226805A (en) * | 2021-12-23 | 2022-03-25 | 浙江欣兴工具股份有限公司 | Portable drilling support device |
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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: 20151104 Termination date: 20160327 |