CN102990133B - Composite drill bit - Google Patents
Composite drill bit Download PDFInfo
- Publication number
- CN102990133B CN102990133B CN201210487790.1A CN201210487790A CN102990133B CN 102990133 B CN102990133 B CN 102990133B CN 201210487790 A CN201210487790 A CN 201210487790A CN 102990133 B CN102990133 B CN 102990133B
- Authority
- CN
- China
- Prior art keywords
- bit
- drillstock
- hollow boring
- spiral
- boring bit
- 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.)
- Active
Links
Abstract
The invention discloses 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 one end of drillstock, and spiral bit is positioned at hollow boring bit center; It is characterized in that: described drillstock is adopted made of plastic, and make integral piece with hollow boring bit and spiral bit by injection molding.The present invention adopts drillstock made of plastic, and can obtain and traditional technique effect adopting metal drill bit same, because material price is cheap, production efficiency is higher, thus effectively reduces manufacturing cost.
Description
Technical field
Drill bit structure design field of the present invention, is specifically related to a kind of composite drill bit.
Background technology
Accompanying drawing 1 is a kind of sectional view of conventional drill, and this kind of drill bit comprises drillstock (91), hollow boring bit (92), fluted drill (93) and trip bolt (94); The center of described drillstock one end is provided with blind hole (911), and the periphery wall of this end is provided with male threaded joint (912), and drillstock handle body is provided with the fastener hole (913) be communicated with blind hole; Described hollow boring bit is spirally connected and is fixed on the male threaded joint of drillstock, and one end of described fluted drill is arranged in drillstock blind hole as stiff end, and the other end stretches out this blind hole as cutting end and exceeds hollow boring bit; Described trip bolt is arranged in drillstock fastener hole, and the stiff end of fluted drill is pressed abd fixed in blind hole.
The weak point of this conventional drill is: its structure is comparatively complicated, and processing and manufacturing operation is comparatively loaded down with trivial details; Its drillstock, drill bit and fluted drill are all adopt metal to make in addition, heavier-weight, and cost is higher.
Summary of the invention
The object of this invention is to provide a kind of lower-cost composite drill bit.
The technical scheme realizing 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 one end of drillstock, and spiral bit is positioned at hollow boring bit center; Described spiral bit comprises the fixed part that is connected with drillstock and the cutting portion away from drillstock; It is characterized in that: described drillstock is adopted made of plastic, described drillstock comprises the injection moulding connecting portion that is connected with hollow boring bit and the installation portion away from hollow boring bit one end; The fixed position of described spiral bit is in the center of drillstock injection moulding connecting portion; Described drillstock, hollow boring bit and spiral bit make integral piece by injection molding; The shape of the fixed part of described spiral bit is regular polygon, and described spiral bit fixed part is provided with the multiple enhancing holes run through along the transverse direction vertical with central axial direction, when injection mo(u)lding manufactures drillstock, to strengthen in hole also fill by plastics.
The present invention adopts drillstock made of plastic, and can obtain and traditional technique effect adopting metal drill bit same, because material price is cheap, production efficiency is higher, thus effectively reduces manufacturing cost.
Accompanying drawing explanation
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 Fig. 2;
Fig. 4 is that composite drill bit shown in Fig. 2 is from a kind of explosive view during another angle views;
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 Fig. 5;
Fig. 7 is that composite drill bit shown in Fig. 5 is from a kind of explosive view during another angle views;
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 Fig. 8.
Detailed description of the invention
(embodiment 1)
Fig. 2 to Fig. 4 shows the first detailed description of the invention 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 Fig. 2; Fig. 4 is that composite drill bit shown in Fig. 2 is from a kind of explosive view during another angle views.
The present embodiment is a kind of composite drill bit, sees shown in Fig. 2 to Fig. 4, comprises drillstock 1 and spiral bit 3, and described spiral bit 3 adopts metal to make, and described spiral bit 3 comprises the fixed part 31 that is connected with drillstock 1 and the cutting portion 32 away from drillstock 1; Described drillstock 1 is adopted made of plastic, comprises the injection moulding connecting portion 11 that is connected with hollow boring bit 2 and the installation portion 12 away from hollow boring bit 2 one end; The fixed part 31 of described spiral bit is positioned at the center of drillstock injection moulding connecting portion 11, and makes integral piece with injection moulding connecting portion 11 by injection molding.
The shape of the fixed part 31 of described spiral bit 3 is regular polygons.Described spiral bit 3 fixed part 31 is provided with the multiple enhancing holes 33 run through along the transverse direction vertical with central axial direction.Injection mo(u)lding manufacture drillstock time, in this enhancing hole 33 also fill by plastics.
(embodiment 2)
Fig. 5 to Fig. 7 shows the second detailed description of the invention 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 Fig. 5; Fig. 7 is that composite drill bit shown in Fig. 5 is from a kind of explosive view during another angle views.
The present embodiment is a kind of composite drill bit, see shown in Fig. 5 to Fig. 7, 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 one end of drillstock 1, and spiral bit 3 is positioned at hollow boring bit 2 center; Described hollow boring bit 2 comprises tubular matrix 21, is arranged on the cutting teeth 22 of tubular matrix 21 bottom and is positioned at the linkage portion 23 of tubular matrix 21; Described spiral bit 3 comprises the fixed part 31 that is connected with drillstock 1 and the cutting portion 32 away from drillstock 1; Described drillstock 1 is adopted made of plastic, comprises the injection moulding connecting portion 11 that is connected with hollow boring bit 2 and the installation portion 12 away from hollow boring bit 2 one end; Linkage portion 23 and this injection moulding connecting portion 11 of the fixed part 31 of described spiral bit 3 and hollow boring bit 2 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 matched with this interlock hole 24.
Described drillstock 1 is also provided with for hollow boring bit 2 linkage portion 23 being encapsulated in two interior circular enhancing shroudings 15 at the two ends of its linkage gear 13, described enhancing shrouding 15 is arranged in hollow boring bit 2 tubular matrix 21 endoporus, described linkage gear 13 strengthens between shroudings 15 two, and on linkage gear 13, the two ends up and down of each gear teeth strengthen shrouding 15 with two respectively and are connected.
The shape of the fixed part 31 of described spiral bit 3 is regular polygons.Described spiral bit 3 fixed part 31 is provided with the multiple enhancing holes 33 run through along the transverse direction vertical with central axial direction.Injection mo(u)lding manufacture drillstock time, in this enhancing hole 33 also fill by plastics.
(embodiment 3)
Fig. 8 and Fig. 9 shows the third detailed description of the invention 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 Fig. 8.
The present embodiment is substantially the same manner as Example 2, difference is: see Fig. 8 and Fig. 9, described drillstock 1 is in one end away from drillstock installation portion 12 of its linkage gear 13, also be provided with and strengthen shrouding 15 for hollow boring bit 2 linkage portion 23 being encapsulated in interior circle, 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 linkage gear 13, each gear teeth 131 are all connected with enhancing shrouding 15 away from one end of drillstock installation portion 12.
Described annular reinforced pipe 14 is connected with a periphery wall strengthening shrouding 15 close to drillstock 1 installation portion 12.
Can draw from above-described embodiment 1 to embodiment 3, the present invention adopts drillstock made of plastic, and can obtain and traditional technique effect adopting metal drill bit same, because material price is cheap, production efficiency is higher, thus effectively reduces manufacturing cost.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the 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 exhaustive without the need to also giving all embodiments.And these belong to connotation of the present invention the apparent change of extending out or variation still belong to protection scope of the present invention.
Claims (1)
1. a 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 drillstock (1) same to one end, and spiral bit (3) is positioned at hollow boring bit (2) center; Described spiral bit (3) comprises the fixed part (31) that is connected with drillstock (1) and the cutting portion (32) away from drillstock (1); It is characterized in that: described drillstock (1) is adopted made of plastic, described drillstock (1) comprises the injection moulding connecting portion (11) that is connected with hollow boring bit (2) and the installation portion (12) away from hollow boring bit (2) one end; The fixed part (31) of described spiral bit is positioned at the center of drillstock injection moulding connecting portion (11); Described drillstock (1), hollow boring bit (2) and spiral bit (3) make integral piece by injection molding; The shape of the fixed part (31) of described spiral bit (3) is regular polygon, described spiral bit (3) fixed part (31) is provided with multiple enhancing holes (33) of running through along the transverse direction vertical with central axial direction, when injection mo(u)lding manufactures drillstock, to strengthen in hole (33) also fill by plastics; The center of described hollow boring bit linkage portion (23) is provided with gear-like interlock hole (24); The injection moulding connecting portion of described drillstock is provided with the linkage gear (13) matched with this interlock hole; Described drillstock is also provided with for hollow boring bit linkage portion being encapsulated in two interior circular enhancings shrouding (15) at the two ends of its linkage gear, described enhancing shrouding is arranged in hollow boring bit tubular matrix (21) endoporus, described linkage gear strengthens between shroudings two, and on linkage gear, the two ends up and down of each gear teeth strengthen shrouding with two respectively and are connected.
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 CN102990133A (en) | 2013-03-27 |
| CN102990133B true 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 (7)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060275091A1 (en) * | 2005-06-02 | 2006-12-07 | Burdick Brett W | Quick stock remover |
-
2012
- 2012-11-26 CN CN201210487790.1A patent/CN102990133B/en active Active
Patent Citations (7)
| 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 |
| 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 |
|---|---|
| CN102990133A (en) | 2013-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102990135B (en) | A kind of modified form composite drill bit | |
| CN102990132B (en) | Drill bit | |
| CN102990138B (en) | Composite drill bit | |
| RU2012111204A (en) | PLASTIC PRODUCT AND TECHNOLOGICAL INSTALLATION FOR MANUFACTURE OF PLASTIC PRODUCT | |
| CN102990136B (en) | Drill | |
| CN102990133B (en) | Composite drill bit | |
| CN202910349U (en) | Composite drill bit | |
| CN102990134B (en) | A kind of composite drill bit | |
| CN103143749B (en) | Modified model drill bit | |
| EP3226989B1 (en) | A structure comprising two shell parts | |
| CN202029318U (en) | Sizing cleaning tool | |
| CN102602489A (en) | Integrally-formed front fork and manufacturing method thereof | |
| CN202360570U (en) | Spline shaft | |
| CN203318483U (en) | Inner sleeve assembly of automotive steering lining | |
| CN203611430U (en) | Strip-shaped reinforcing rib die opening for plastic water hose | |
| CN202023513U (en) | Partial round thread oil casing | |
| CN102996596B (en) | A kind of composite bolt | |
| CN201460752U (en) | Three-segment spiral extra-heavy drill rod | |
| CN204459580U (en) | A kind of ripple U-tube | |
| CN203926539U (en) | Spring bushing | |
| CN204784601U (en) | A bead for fork truck reduction gear assembly | |
| CN102345663A (en) | Nut | |
| CN102384326B8 (en) | A kind of attachment structure of pultrusion composite tubing | |
| CN202834433U (en) | Steel band bellows and bellmouth structure thereof | |
| CN105508559A (en) | Multifunctional reinforced gear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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. |
|
| 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. |