CN201089026Y - High speed steel hole saw - Google Patents
High speed steel hole saw Download PDFInfo
- Publication number
- CN201089026Y CN201089026Y CNU2007201755979U CN200720175597U CN201089026Y CN 201089026 Y CN201089026 Y CN 201089026Y CN U2007201755979 U CNU2007201755979 U CN U2007201755979U CN 200720175597 U CN200720175597 U CN 200720175597U CN 201089026 Y CN201089026 Y CN 201089026Y
- Authority
- CN
- China
- Prior art keywords
- speed steel
- clamp shaft
- cutter body
- hole saw
- cutter hub
- 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
- 229910000997 High-speed steel Inorganic materials 0.000 title claims abstract description 22
- 238000000304 warm extrusion Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000000641 cold extrusion Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model relates to a high speed steel hole saw, comprising a positioning drill bit, a cylindrical cutter body and a clamp shaft. Sawteeth which are uniformly distributed and arranged on the periphery of the opening end of the front part of the cylindrical cutter body; the cross section of the clamp part of the clamp shaft is a triangle; the cylindrical cutter body is formed by warm extrusion with high speed steel; the clamp shaft and the cylindrical cutter body are concentrically connected with each other through screw threads; the positioning drill bit is embedded in and fixed by a screw with the center of the round cutter body. The cross section of the clamp part of the clamp shaft of the utility model is triangular, thereby increasing the frictional resistance during clamping, preventing slippage and loosening during rotation and making the clamping more reliable. The cylindrical cutter body is formed by warm extrusion with high speed steel, thereby having a more compact organizational structure, greatly improved elastic-plastic deformation ability, enormously improved the tensile strength, the torsional strength and shock resistance, reduced material consumption, manufacturing procedure and production cost than the common hole saw.
Description
Technical field
The utility model relates to a kind of hole making drill, relates in particular to a kind of high-speed steel hole saw.
Background technology
China Patent No. ZL200620101190.7 discloses a kind of quick cutting steel hole making drill, and this quick cutting steel hole making drill is made of cutter hub, brill tube and brill socket joint handle, and it bores tube and cutter hub is become one through cold extrusion by different materials.Because brill tube and cutter hub are become one through cold extrusion by different materials, different materials its associativity after cold extrusion is stable inadequately, it is loosening and separate to be easy to generate binding site, particularly bear under the situation of high pulling torque easier to be loosening and separate, and because himself tissue characteristics of high speed steel material, under the situation of not heating, push and defective such as easily crack, thereby influence product quality.On the other hand, it be circular that this quick cutting steel hole making drill bores the tight position of socket joint spindle clamp, is unfavorable for clamping, influences alloy hole making drill service life and perforate precision thereby skid easily during perforate.
Summary of the invention
For overcoming the shortcoming of prior art, goal of the invention of the present utility model provides a kind of reliable clamping, long service life, saw hole precision height, and the cutter hub metal material tissue is the high-speed steel hole saw closely.
The purpose of this utility model is achieved in that a kind of high-speed steel hole saw, comprise location drill bit, cylindrical shape cutter hub, clamp shaft, the open front end periphery of described cylindrical shape cutter hub has equally distributed sawtooth, the cross section at the clamping position of described clamp shaft is a triangle, described cylindrical shape cutter hub is pressed through warm extrusion by high-speed steel and is formed, and described clamp shaft is connected with described cylindrical shape cutter hub concentric threads; Described location drill bit is inlaid in described clamp shaft center and is fixed by screw.
Three seamed edges at the clamping position of described clamp shaft are the fillet seamed edge.
The rear portion excircle of described cylindrical shape cutter hub is provided with flange.
The beneficial effect that the utility model produces is:
1, because clamp shaft of the present utility model clamps the cross section at position is triangle, strengthened the frictional resistance when clamping, produced when having prevented rotation and skid and become flexible, made clamping more reliable.
2, owing to cylindrical shape cutter hub of the present utility model is formed through the warm extrusion pressure by high-speed steel, its institutional framework is tightr, improve its plastic deformation ability greatly, its tensile strength, torsional strength and impact resistance are improved a lot than common hole saw, and reduced material consumption and manufacturing procedure, manufacturing cost is reduced.
3, because the rear portion excircle of cylindrical shape cutter hub of the present utility model is provided with flange, can limit high-speed steel hole saw drilling depth, can prevent from drilled object to be bored thoroughly because of operating personnel overexert.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the front view of the utility model embodiment 1;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the front view of the utility model embodiment 2;
Fig. 5 is the C-C cutaway view of Fig. 4.
The specific embodiment
Embodiment 1:
Referring to Fig. 1, Fig. 2, Fig. 3, a kind of high-speed steel hole saw, comprise location drill bit 1, cylindrical shape cutter hub 3, clamp shaft 5, the open front end periphery of cylindrical shape cutter hub 3 has equally distributed sawtooth 2, the cross section at the clamping position of clamp shaft 5 is a triangle, cylindrical shape cutter hub 3 is pressed through warm extrusion by high-speed steel and is formed, and clamp shaft 5 is connected with cylindrical shape cutter hub 3 concentric threads; Location drill bit 1 is inlaid in the center of clamp shaft 5 and is fixed by screw 4.
Cylindrical shape cutter hub 3 of the present utility model is to be pressed through warm extrusion by high-speed steel to form.Cylindrical shape cutter hub its institutional framework after the high temperature extrusion process is tightr, improve its plastic deformation ability greatly, its tensile strength, torsional strength and impact resistance are improved a lot than common hole saw, and reduced material consumption and manufacturing procedure, manufacturing cost is reduced.Extrude the triangle clamp shaft that cross section is branch plane such as triangle in the pultrusion of the clamping section of clamp shaft, strengthened the frictional resistance when clamping, produce when having prevented rotation and skid and become flexible, overcome and clamped the position in the prior art for circular, be unfavorable for clamping, influence the shortcoming of service life and perforate precision thereby skid easily during perforate.Clamp shaft 5 is connected with cylindrical shape cutter hub 3 concentric threads; Location drill bit 1 is inlaid in the center of clamp shaft 5 and is fixed by screw 4, has improved saw hole positioning accuracy.
In the present embodiment, three seamed edges in the clamping section of triangle clamp shaft 5 are the fillet seamed edge.
Embodiment 2:
Referring to Fig. 4, Fig. 5, on the technical scheme basis of embodiment 1, the rear portion excircle of cylindrical shape cutter hub 3 is provided with flange 6, this flange is set can limits high-speed steel hole saw drilling depth.In drilling process, when flange 6 contacted with the surface of drilled object, the high-speed steel hole saw was prevented from further creeping at the high-speed steel hole saw, can prevent from because of operating personnel overexert drilled object to be bored thoroughly.
Claims (3)
1. high-speed steel hole saw, comprise location drill bit, cylindrical shape cutter hub, clamp shaft, the open front end periphery of described cylindrical shape cutter hub has equally distributed sawtooth, it is characterized in that: the cross section at the clamping position of described clamp shaft is a triangle, described cylindrical shape cutter hub is pressed through warm extrusion by high-speed steel and is formed, and described clamp shaft is connected with described cylindrical shape cutter hub concentric threads; Described location drill bit is inlaid in described clamp shaft center and is fixed by screw.
2. high-speed steel hole saw according to claim 1 is characterized in that: three seamed edges at the clamping position of described clamp shaft are the fillet seamed edge.
3. high-speed steel hole saw according to claim 1 is characterized in that: the rear portion excircle of described cylindrical shape cutter hub is provided with flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201755979U CN201089026Y (en) | 2007-09-03 | 2007-09-03 | High speed steel hole saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201755979U CN201089026Y (en) | 2007-09-03 | 2007-09-03 | High speed steel hole saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201089026Y true CN201089026Y (en) | 2008-07-23 |
Family
ID=39860783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201755979U Expired - Fee Related CN201089026Y (en) | 2007-09-03 | 2007-09-03 | High speed steel hole saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201089026Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990138A (en) * | 2012-11-26 | 2013-03-27 | 苏州币龙装饰工程有限公司 | Hollow drill bit |
| CN102990135A (en) * | 2012-11-26 | 2013-03-27 | 苏州币龙装饰工程有限公司 | Improved hollow drill |
| CN103143749A (en) * | 2012-11-26 | 2013-06-12 | 苏州币龙装饰工程有限公司 | Improved type drill |
-
2007
- 2007-09-03 CN CNU2007201755979U patent/CN201089026Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990138A (en) * | 2012-11-26 | 2013-03-27 | 苏州币龙装饰工程有限公司 | Hollow drill bit |
| CN102990135A (en) * | 2012-11-26 | 2013-03-27 | 苏州币龙装饰工程有限公司 | Improved hollow drill |
| CN103143749A (en) * | 2012-11-26 | 2013-06-12 | 苏州币龙装饰工程有限公司 | Improved type drill |
| CN102990138B (en) * | 2012-11-26 | 2016-01-13 | 乐清市风杰电子科技有限公司 | Composite drill bit |
| CN102990135B (en) * | 2012-11-26 | 2016-02-03 | 乐清市风杰电子科技有限公司 | A kind of modified form composite drill bit |
| CN103143749B (en) * | 2012-11-26 | 2016-06-08 | 钱秀英 | Modified model drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: ZHUANG ZAIYI Effective date: 20120427 Owner name: ZHEJIANG ZHONGTIAN TOOLS CO., LTD. Free format text: FORMER OWNER: SHI XIWEN Effective date: 20120427 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120427 Address after: 325611 Qingjiang Industrial Park, Qingjiang Town, Yueqing, Zhejiang Patentee after: Zhejiang Zhongtian Tools Co., Ltd. Address before: 325611 Stone Ancient Village, Qingjiang Town, Yueqing, Zhejiang Co-patentee before: Zhuang Zaiyi Patentee before: Shi Xiwen |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20130903 |