CN102990135B - A kind of modified form composite drill bit - Google Patents
A kind of modified form composite drill bit Download PDFInfo
- Publication number
- CN102990135B CN102990135B CN201210488798.XA CN201210488798A CN102990135B CN 102990135 B CN102990135 B CN 102990135B CN 201210488798 A CN201210488798 A CN 201210488798A CN 102990135 B CN102990135 B CN 102990135B
- Authority
- CN
- China
- Prior art keywords
- bit
- drillstock
- hollow boring
- boring bit
- tubular matrix
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/04—Drills for trepanning
- B23B51/0411—Drills for trepanning with stepped tubular cutting bodies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
- Drilling Tools (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a kind of modified form composite drill bit, comprise tubular matrix, be arranged on the cutting teeth of tubular matrix bottom and be positioned at the linkage portion of tubular matrix; Described linkage portion center is provided with gear-like interlock hole; Described tubular matrix periphery wall is provided with an annular groove, and described interlock hole is communicated with this annular groove.The present invention can locate drill bit by integrated injection molding mode all-in-one-piece composite drill bit with plastics drillstock and fried dough twist, can proof strength, effectively can reduce again the manufacturing cost of composite drill bit.
Description
Technical field
Drill bit structure design field of the present invention, is specifically related to a kind of modified form 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 structure comparatively reasonable, effectively can reduce the modified form composite drill bit of composite drill bit manufacturing cost.
The technical scheme realizing the object of the invention is: a kind of modified form composite drill bit, comprises 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; Hollow boring bit comprises tubular matrix, is arranged on the cutting teeth of tubular matrix bottom and is positioned at the linkage portion of tubular matrix; Described linkage portion center is provided with gear-like interlock hole; It is characterized in that: described tubular matrix periphery wall is provided with an annular groove, described interlock hole is communicated with this annular groove; Described drillstock is adopted made of plastic, and 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 injection moulding connecting portion of described drillstock is provided with the linkage gear matched with this interlock hole; Described spiral bit comprises the fixed part that is connected with drillstock and the cutting portion away from drillstock; The fixed part of described spiral bit and the linkage portion of hollow boring bit and this injection moulding connecting portion are fixedly linked by injection molding, and the cutting portion of spiral bit is positioned at the center of hollow boring bit tubular matrix and exceeds the cutting teeth of hollow boring bit.
The present invention can locate drill bit by integrated injection molding mode all-in-one-piece composite drill bit with plastics drillstock and fried dough twist, can proof strength, effectively can reduce again the manufacturing cost of composite drill bit.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of conventional drill;
Fig. 2 is a kind of perspective view of the present invention;
Fig. 3 is that hollow boring bit shown in Fig. 2 is from perspective view during another angle views;
Fig. 4 is the structural representation adopting a kind of composite drill bit that hollow boring bit is made shown in Fig. 2;
Fig. 5 is a kind of explosive view of composite drill bit shown in Fig. 4;
Fig. 6 is that composite drill bit shown in Fig. 4 is from a kind of explosive view during another angle views.
Detailed description of the invention
(embodiment 1)
Fig. 2 and Fig. 3 shows a kind of detailed description of the invention of the present invention, and wherein Fig. 2 is a kind of perspective view of the present invention; Fig. 3 is that hollow boring bit shown in Fig. 2 is from perspective view during another angle views.
The present embodiment is a kind of modified form hollow boring bit, sees shown in Fig. 2 to Fig. 3, 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 linkage portion 23 center is provided with gear-like interlock hole 24; Described tubular matrix 21 periphery wall is provided with an annular groove 25, and described interlock hole 24 is communicated with this annular groove 25.
(application examples 1)
Fig. 4 to Fig. 6 shows a kind of embody rule mode of the present invention, and wherein Fig. 4 is the structural representation adopting a kind of composite drill bit that hollow boring bit is made shown in Fig. 2; Fig. 5 is a kind of explosive view of composite drill bit shown in Fig. 4; Fig. 6 is that composite drill bit shown in Fig. 4 is from a kind of explosive view during another angle views.
Should use-case be a kind of composite drill bit adopting above-described embodiment 1 to make, see shown in Fig. 4 to Fig. 6, 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.
Should plastics be adopted to make drillstock by use-case, can obtain and traditional technique effect adopting metal drill bit same, because material price is cheap, production efficiency be 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 modified form composite drill bit, comprises 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; Hollow boring bit comprises tubular matrix, is arranged on the cutting teeth of tubular matrix bottom and is positioned at the linkage portion of tubular matrix; Described linkage portion center is provided with gear-like interlock hole; It is characterized in that: described tubular matrix periphery wall is provided with an annular groove, described interlock hole is communicated with this annular groove; Described drillstock is adopted made of plastic, and 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 injection moulding connecting portion of described drillstock is provided with the linkage gear matched with this interlock hole; Described spiral bit comprises the fixed part that is connected with drillstock and the cutting portion away from drillstock; The fixed part of described spiral bit and the linkage portion of hollow boring bit and this injection moulding connecting portion are fixedly linked by injection molding, and the cutting portion of spiral bit is positioned at the center of hollow boring bit tubular matrix and exceeds the cutting teeth of hollow boring bit; Described spiral bit fixed part is provided with the multiple enhancing holes run through along the transverse direction vertical with central axial direction; Injection mo(u)lding manufacture drillstock time, in this enhancing hole also fill by plastics.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510571958.0A CN105195797A (en) | 2012-11-26 | 2012-11-26 | Improved composite drill bit with manufacturing cost effectively reduced |
| CN201510573357.3A CN105195792A (en) | 2012-11-26 | 2012-11-26 | Improved composite drill bit realizing effective reduction of manufacturing cost |
| CN201210488798.XA CN102990135B (en) | 2012-11-26 | 2012-11-26 | A kind of modified form composite drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210488798.XA CN102990135B (en) | 2012-11-26 | 2012-11-26 | A kind of modified form composite drill bit |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510571958.0A Division CN105195797A (en) | 2012-11-26 | 2012-11-26 | Improved composite drill bit with manufacturing cost effectively reduced |
| CN201510573357.3A Division CN105195792A (en) | 2012-11-26 | 2012-11-26 | Improved composite drill bit realizing effective reduction of manufacturing cost |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990135A CN102990135A (en) | 2013-03-27 |
| CN102990135B true CN102990135B (en) | 2016-02-03 |
Family
ID=47919543
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210488798.XA Active CN102990135B (en) | 2012-11-26 | 2012-11-26 | A kind of modified form composite drill bit |
| CN201510571958.0A Withdrawn CN105195797A (en) | 2012-11-26 | 2012-11-26 | Improved composite drill bit with manufacturing cost effectively reduced |
| CN201510573357.3A Withdrawn CN105195792A (en) | 2012-11-26 | 2012-11-26 | Improved composite drill bit realizing effective reduction of manufacturing cost |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510571958.0A Withdrawn CN105195797A (en) | 2012-11-26 | 2012-11-26 | Improved composite drill bit with manufacturing cost effectively reduced |
| CN201510573357.3A Withdrawn CN105195792A (en) | 2012-11-26 | 2012-11-26 | Improved composite drill bit realizing effective reduction of manufacturing cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN102990135B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921793B (en) * | 2016-06-06 | 2017-12-08 | 清华大学 | A kind of drill bit and its manufacture method |
| CN110681905B (en) * | 2019-09-17 | 2020-12-22 | 中国船舶工业集团公司第七0八研究所 | Milling cutter structure of five-axis numerical control machining equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3705717A1 (en) * | 1987-02-23 | 1988-09-01 | Erich Wezel | Box countersink or hollow drill bit and production process for this |
| CN2133390Y (en) * | 1992-07-22 | 1993-05-19 | 成都工具厂 | Twist drill with plastic handle |
| CN201089026Y (en) * | 2007-09-03 | 2008-07-23 | 施希文 | High speed steel hole saw |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3162067A (en) * | 1962-11-23 | 1964-12-22 | Black & Decker Mfg Co | Hole saw |
| CN2165954Y (en) * | 1993-07-02 | 1994-05-25 | 涂庆 | Combined drilling & milling tool |
| DE4436917A1 (en) * | 1994-10-15 | 1996-04-18 | Hilti Ag | Drilling unit with hollow core bit and centering mandrel |
| 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 |
| CN2803585Y (en) * | 2005-07-25 | 2006-08-09 | 屠炳炬 | Tapping device |
| CN201030448Y (en) * | 2006-10-26 | 2008-03-05 | 中国有色金属工业十一冶安装工程公司金属容器结构厂 | Hollow boring bit |
| TWM340163U (en) * | 2008-02-22 | 2008-09-11 | K & W Tools Co Ltd | Hole-drilling saw |
-
2012
- 2012-11-26 CN CN201210488798.XA patent/CN102990135B/en active Active
- 2012-11-26 CN CN201510571958.0A patent/CN105195797A/en not_active Withdrawn
- 2012-11-26 CN CN201510573357.3A patent/CN105195792A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3705717A1 (en) * | 1987-02-23 | 1988-09-01 | Erich Wezel | Box countersink or hollow drill bit and production process for this |
| CN2133390Y (en) * | 1992-07-22 | 1993-05-19 | 成都工具厂 | Twist drill with plastic handle |
| CN201089026Y (en) * | 2007-09-03 | 2008-07-23 | 施希文 | High speed steel hole saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105195797A (en) | 2015-12-30 |
| CN105195792A (en) | 2015-12-30 |
| CN102990135A (en) | 2013-03-27 |
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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. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180809 Address after: 226600 No. 8, Xiao Xing Road, Chengdong Town, Haian Development Zone, Nantong, Jiangsu Patentee after: Nantong one choice Industrial Design Co., Ltd. Address before: 325600 Liushi Town, Yueqing City, Wenzhou, Zhejiang Province Patentee before: YUEQING FENGJIE ELECTRONIC TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190612 Address after: 226000 Xinlian Industrial Park, Liuqiao Town, Tongzhou District, Nantong City, Jiangsu Province Patentee after: Jiangsu Songtian CNC Technology Co., Ltd. Address before: 226600 No. 8, Xiao Xing Road, Chengdong Town, Haian Development Zone, Nantong, Jiangsu Patentee before: Nantong one choice Industrial Design Co., Ltd. |