CN102990133A - Composite drill bit - Google Patents
Composite drill bit Download PDFInfo
- Publication number
- CN102990133A CN102990133A CN2012104877901A CN201210487790A CN102990133A CN 102990133 A CN102990133 A CN 102990133A CN 2012104877901 A CN2012104877901 A CN 2012104877901A CN 201210487790 A CN201210487790 A CN 201210487790A CN 102990133 A CN102990133 A CN 102990133A
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- Prior art keywords
- bit
- drillstock
- hollow boring
- drill bit
- drill
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- 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.)
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a composite drill bit, which comprises a drill handle, a hollow bit and an auger bit, wherein the hollow bit and the auger bit are made of metal, and arranged at the same end of the drill handle; and the auger bit is positioned in the center of the hollow bit. The composite drill bit is characterized in that the drill handle is made of plastic, and is produced into one piece with the hollow bit and the auger bit in an injection molding formation mode. According to the composite drill bit, the drill handle is made of plastic, and can achieve the same technical effect as the traditional drill bit made of metal, the materials are low in price, and the production efficiency is higher, so that the manufacture cost can be effectively reduced.
Description
Technical field
Drill bit structure design field of the present invention is specifically related to a kind of composite drill bit.
Background technology
The weak point of this conventional drill is: its structure is comparatively complicated, and the processing and manufacturing operation is comparatively loaded down with trivial details; Its drillstock, drill bit and fluted drill all are to adopt metal to make in addition, and weight is heavier, and cost is higher.
Summary of the invention
The purpose of this invention is to provide a kind of lower-cost composite drill bit.
The technical scheme that realizes the object of the invention is: a kind of composite drill bit, comprise drillstock, hollow boring bit and spiral bit, described hollow boring bit and spiral bit adopt metal to make, and spiral bit and hollow boring bit are arranged on the same end of drillstock, and spiral bit is positioned at the hollow boring bit center; Described drillstock adopts plastics to make, and makes integral piece with hollow boring bit and spiral bit by injection molding.
The present invention adopts plastics to make drillstock, can obtain and the same technique effect of the tradition metal drill bit of employing, because material price is cheap, production efficiency is higher, thereby effectively reduces manufacturing cost.
Description of drawings
Fig. 1 is a kind of structural representation of conventional drill;
Fig. 2 is a kind of structural representation of the first structure of the present invention;
Fig. 3 is a kind of explosive view of composite drill bit shown in Figure 2;
A kind of explosive view of Fig. 4 when to be composite drill bit shown in Figure 2 from another angle observe;
Fig. 5 is a kind of structural representation of the second structure of the present invention;
Fig. 6 is a kind of explosive view of composite drill bit shown in Figure 5;
A kind of explosive view of Fig. 7 when to be composite drill bit shown in Figure 5 from another angle observe;
Fig. 8 is a kind of structural representation of the third structure of the present invention;
Fig. 9 is a kind of explosive view of composite drill bit shown in Figure 8.
The specific embodiment
(embodiment 1)
Fig. 2 to Fig. 4 has shown the first specific embodiment of the present invention, and wherein Fig. 2 is a kind of structural representation of the first structure of the present invention; Fig. 3 is a kind of explosive view of composite drill bit shown in Figure 2; A kind of explosive view of Fig. 4 when to be composite drill bit shown in Figure 2 from another angle observe.
Present embodiment is a kind of composite drill bit, sees that Fig. 2 to shown in Figure 4, comprises drillstock 1 and spiral bit 3, and described spiral bit 3 adopts metals to make, and described spiral bit 3 comprises the fixed part 31 that links to each other with drillstock 1 and away from the cutting portion 32 of drillstock 1; Described drillstock 1 adopts plastics to make, and comprises the injection moulding connecting portion 11 that links to each other with hollow boring bit 2 and away from the installation portion 12 of hollow boring bit 2 one ends; The fixed part 31 of described spiral bit is positioned at the center of drillstock injection moulding connecting portion 11, and and injection moulding connecting portion 11 make integral piece by injection molding.
The shape of the fixed part 31 of described spiral bit 3 is regular polygons.Described spiral bit 3 fixed parts 31 are provided with along a plurality of enhancings hole 33 laterally run through vertical with central axial direction.When drillstock is made in injection mo(u)lding, also filled by plastics in this enhancing hole 33.
(embodiment 2)
Fig. 5 to Fig. 7 has shown the second specific embodiment of the present invention, and Fig. 5 is a kind of structural representation of the second structure of the present invention; Fig. 6 is a kind of explosive view of composite drill bit shown in Figure 5; A kind of explosive view of Fig. 7 when to be composite drill bit shown in Figure 5 from another angle observe.
Present embodiment is a kind of composite drill bit, see that Fig. 5 to shown in Figure 7, comprises drillstock 1, hollow boring bit 2 and spiral bit 3, described hollow boring bit 2 and spiral bit 3 adopt metal to make, spiral bit 3 and hollow boring bit 2 are arranged on drillstock 1 same end, and spiral bit 3 is positioned at hollow boring bit 2 centers; Described hollow boring bit 2 comprises tubular matrix 21, be arranged on the cutting teeth 22 of tubular matrix 21 bottoms and be positioned at the linkage portion 23 of tubular matrix 21; Described spiral bit 3 comprises the fixed part 31 that links to each other with drillstock 1 and away from the cutting portion 32 of drillstock 1; Described drillstock 1 adopts plastics to make, and comprises the injection moulding connecting portion 11 that links to each other with hollow boring bit 2 and away from the installation portion 12 of hollow boring bit 2 one ends; The fixed part 31 of described spiral bit 3 and the linkage portion of hollow boring bit 2 23 and this injection moulding connecting portion 11 are fixedly linked by injection molding, and the cutting portion 32 of spiral bit 3 is positioned at the center of hollow boring bit 2 tubular matrix 21 and exceeds the cutting teeth 22 of hollow boring bit 2.
The center of described hollow boring bit 2 linkage portion 23 is provided with gear-like interlock hole 24; The injection moulding connecting portion 11 of described drillstock 1 is provided with the linkage gear 13 that matches with this interlock hole 24.
Described drillstock 1 also is provided with at the two ends of its linkage gear 13 for two in hollow boring bit 2 linkage portion 23 the are encapsulated in circular shroudings 15 that strengthen, described enhancing shrouding 15 is arranged in hollow boring bit 2 tubular matrix 21 endoporus, described linkage gear 13 strengthens between the shrouding 15 two, and the up and down two ends of each gear teeth link to each other with two enhancing shroudings 15 respectively on the linkage gear 13.
The shape of the fixed part 31 of described spiral bit 3 is regular polygons.Described spiral bit 3 fixed parts 31 are provided with along a plurality of enhancings hole 33 laterally run through vertical with central axial direction.When drillstock is made in injection mo(u)lding, also filled by plastics in this enhancing hole 33.
(embodiment 3)
Fig. 8 and Fig. 9 have shown the third specific embodiment of the present invention, and wherein Fig. 8 is a kind of structural representation of the third structure of the present invention; Fig. 9 is a kind of explosive view of composite drill bit shown in Figure 8.
Present embodiment is substantially the same manner as Example 2, difference is: see Fig. 8 and Fig. 9, described drillstock 1 is at the end away from drillstock installation portion 12 of its linkage gear 13, also be provided with for the circle in hollow boring bit 2 linkage portion 23 are encapsulated in and strengthen shrouding 15, described enhancing shrouding 15 is arranged in hollow boring bit 2 tubular matrix 21 endoporus, described linkage gear 13 is arranged in reinforced pipe 14 and strengthens the cavity that shrouding 15 encloses formation, and in the linkage gear 13 each gear teeth 131 away from an end of drillstock installation portion 12 all with strengthen shrouding 15 and link to each other.
Described annular reinforced pipe 14 links to each other with the periphery wall that strengthens shrouding 15 near of drillstock 1 installation portion 12.
Can draw from above-described embodiment 1 to embodiment 3, the present invention adopts plastics to make drillstock, can obtain and the same technique effect of the tradition metal drill bit of employing, because material price is cheap, production efficiency is higher, thereby effectively reduces manufacturing cost.
Obviously, the above embodiment of the present invention only is for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And these belong to apparent variation or the change that connotation of the present invention extends out and still belong to protection scope of the present invention.
Claims (1)
1. composite drill bit, comprise drillstock (1), hollow boring bit (2) and spiral bit (3), described hollow boring bit (2) and spiral bit (3) adopt metal to make, spiral bit (3) and hollow boring bit (2) are arranged on the same end of drillstock (1), and spiral bit (3) is positioned at hollow boring bit (2) center; It is characterized in that: described drillstock (1) adopts plastics to make, and and hollow boring bit (2) and spiral bit (3) make integral piece by injection molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210487790.1A CN102990133B (en) | 2012-11-26 | 2012-11-26 | Composite drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210487790.1A CN102990133B (en) | 2012-11-26 | 2012-11-26 | Composite drill bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990133A true CN102990133A (en) | 2013-03-27 |
| CN102990133B CN102990133B (en) | 2015-12-23 |
Family
ID=47919541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210487790.1A Active CN102990133B (en) | 2012-11-26 | 2012-11-26 | Composite drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102990133B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3162067A (en) * | 1962-11-23 | 1964-12-22 | Black & Decker Mfg Co | Hole saw |
| CN2133390Y (en) * | 1992-07-22 | 1993-05-19 | 成都工具厂 | Twist drill with plastic handle |
| US6705807B1 (en) * | 1999-11-24 | 2004-03-16 | Black & Decker Inc. | Hole saw and connection method |
| CN2749606Y (en) * | 2004-11-22 | 2006-01-04 | 上海华灵工具厂 | Hole making drill |
| US20060275091A1 (en) * | 2005-06-02 | 2006-12-07 | Burdick Brett W | Quick stock remover |
| TWM340163U (en) * | 2008-02-22 | 2008-09-11 | K & W Tools Co Ltd | Hole-drilling saw |
| CN101992318A (en) * | 2009-08-06 | 2011-03-30 | 德事隆创新公司 | Hole saw with tapered pilot bit |
| CN202910349U (en) * | 2012-11-26 | 2013-05-01 | 苏州币龙装饰工程有限公司 | Composite drill bit |
-
2012
- 2012-11-26 CN CN201210487790.1A patent/CN102990133B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3162067A (en) * | 1962-11-23 | 1964-12-22 | Black & Decker Mfg Co | Hole saw |
| CN2133390Y (en) * | 1992-07-22 | 1993-05-19 | 成都工具厂 | Twist drill with plastic handle |
| US6705807B1 (en) * | 1999-11-24 | 2004-03-16 | Black & Decker Inc. | Hole saw and connection method |
| CN2749606Y (en) * | 2004-11-22 | 2006-01-04 | 上海华灵工具厂 | Hole making drill |
| US20060275091A1 (en) * | 2005-06-02 | 2006-12-07 | Burdick Brett W | Quick stock remover |
| TWM340163U (en) * | 2008-02-22 | 2008-09-11 | K & W Tools Co Ltd | Hole-drilling saw |
| CN101992318A (en) * | 2009-08-06 | 2011-03-30 | 德事隆创新公司 | Hole saw with tapered pilot bit |
| CN202910349U (en) * | 2012-11-26 | 2013-05-01 | 苏州币龙装饰工程有限公司 | Composite drill bit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102990133B (en) | 2015-12-23 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20151118 Address after: Liushi Town, Yueqing city of Zhejiang Province, Wenzhou City West 325600 Ren Dang village Applicant after: YUEQING FENGJIE ELECTRONIC TECHNOLOGY CO., LTD. Address before: Songjiang Road, Suzhou City Industrial Park, Jiangsu province 215000 No. 208 Building 2 room 103 Applicant before: Suzhou Bilong Decoration Engineering Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161207 Address after: 226500 Nantong City, Jiangxi Province, the new village of Hong Kong community group of the original (the original primary school in the 12) () Patentee after: Rugao Outong Machinery Fittings Co., Ltd. Address before: Liushi Town, Yueqing city of Zhejiang Province, Wenzhou City West 325600 Ren Dang village Patentee before: YUEQING FENGJIE ELECTRONIC TECHNOLOGY CO., LTD. |