CN201089025Y - Alloy hole saw - Google Patents
Alloy hole saw Download PDFInfo
- Publication number
- CN201089025Y CN201089025Y CNU2007201755964U CN200720175596U CN201089025Y CN 201089025 Y CN201089025 Y CN 201089025Y CN U2007201755964 U CNU2007201755964 U CN U2007201755964U CN 200720175596 U CN200720175596 U CN 200720175596U CN 201089025 Y CN201089025 Y CN 201089025Y
- Authority
- CN
- China
- Prior art keywords
- clamp shaft
- cutter hub
- hole saw
- cutter body
- circular cutter
- 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 relates to an alloy hole saw, comprising a positioning drill bit, a round cutter body, a plurality of tool edges which are welded at the opening end of the round cutter body and a clamp shaft. The cross section of the clamp shaft is a triangle; the clamp shaft and the round cutter body are formed by cold extrusion with the same metal material; the positioning drill bit is embedded in the center of the round cutter body and fixed by a screw. The utility model adopts the clamp shaft the cross section of which is the triangle, thereby increasing the frictional resistance during clamping, preventing slippage and loosening during rotation, and making the clamping more reliable. The round cutter body and the clamp shaft are formed integrally by cold extrusion with metal material, 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 compared with 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 alloy hole saw.
Background technology
China Patent No. ZL200520134326.X discloses a kind of alloy hole making drill, and by a cutter hub one rotating shaft, a spitting drill combines.It is circular that its rotating shaft clamps position, 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 alloy hole saw closely, and this alloy hole saw is applicable to the saw hole of various materials.
The purpose of this utility model is achieved in that a kind of alloy hole saw, comprise location drill bit, circular cutter hub, welding-on a plurality of cutting edges, clamp shaft at circular cutter hub openend, the cross section of described clamp shaft is a triangle, and described clamp shaft and described circular cutter hub are to be formed through cold extrusion by same metal material; Described location drill bit is inlaid in described circular cutter hub center and is fixed by screw.
Three seamed edges of described clamp shaft are the fillet seamed edge.
The even welding-on of described circular cutter hub openend has 5 alloy cutting edges.
The rear portion excircle of described circular cutter hub is provided with flange.
The beneficial effect that the utility model produces is:
1, because the utility model adopts is that cross section is leg-of-mutton clamp shaft, strengthened the frictional resistance when clamping, produced when having prevented rotation and skid and become flexible, made clamping more reliable.
2, because circular cutter hub of the present utility model and clamp shaft are to be formed by the metal material cold extrusion, 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, owing to inlay a plurality of alloy cutting edges on the circular cutter hub openend circumference of the present utility model, make the utility model saw hole efficient height, long service life.
4, because the rear portion excircle of circular cutter hub of the present utility model is provided with flange, can limit alloy 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 alloy hole saw, comprise location drill bit 1, circular cutter hub 3, welding-on a plurality of cutting edges 2, the clamp shaft 5 at circular cutter hub openend, the cross section of clamp shaft 5 is a triangle, and this clamp shaft and circular cutter hub 3 are to be formed through cold extrusion by same metal material; Location drill bit 1 is inlaid in circular cutter hub 3 centers and fixing by screw 4.
In the present embodiment, three seamed edges of clamp shaft 5 are the fillet seamed edge.
In the present embodiment, the even welding-on of circular cutter hub 3 openends has 5 alloy cutting edges 2, alloy cutting edge efficient height, long service life.
Embodiment 2:
Referring to Fig. 4, Fig. 5, on the technical scheme basis of embodiment 1, the rear portion excircle of circular cutter hub is provided with flange 6, this flange is set can limits alloy hole saw drilling depth.In drilling process, when flange 6 contacted with the surface of drilled object, the alloy hole saw was prevented from further creeping at the alloy hole saw, can prevent from because of operating personnel overexert drilled object to be bored thoroughly.
Claims (4)
1. alloy hole saw, comprise location drill bit, circular cutter hub, welding-on a plurality of cutting edges, clamp shaft at circular cutter hub openend, it is characterized in that: the cross section of described clamp shaft is a triangle, and described clamp shaft and described circular cutter hub are to be formed through cold extrusion by same metal material; Described location drill bit is inlaid in described circular cutter hub center and is fixed by screw.
2. alloy hole saw according to claim 1 is characterized in that: three seamed edges of described clamp shaft are the fillet seamed edge.
3. alloy hole saw according to claim 1 is characterized in that: the even welding-on of described circular cutter hub openend has 5 alloy cutting edges.
4. alloy hole saw according to claim 1 is characterized in that: the rear portion excircle of described circular cutter hub is provided with flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201755964U CN201089025Y (en) | 2007-09-03 | 2007-09-03 | Alloy hole saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201755964U CN201089025Y (en) | 2007-09-03 | 2007-09-03 | Alloy hole saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201089025Y true CN201089025Y (en) | 2008-07-23 |
Family
ID=39860782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201755964U Expired - Fee Related CN201089025Y (en) | 2007-09-03 | 2007-09-03 | Alloy hole saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201089025Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108098026A (en) * | 2018-01-10 | 2018-06-01 | 广东凯西欧照明有限公司 | A kind of hole making drill for being used to open sink hole |
| TWI656929B (en) * | 2017-12-15 | 2019-04-21 | 余定錄 | Hole saw structure |
-
2007
- 2007-09-03 CN CNU2007201755964U patent/CN201089025Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI656929B (en) * | 2017-12-15 | 2019-04-21 | 余定錄 | Hole saw structure |
| CN108098026A (en) * | 2018-01-10 | 2018-06-01 | 广东凯西欧照明有限公司 | A kind of hole making drill for being used to open sink hole |
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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: 20120420 Owner name: ZHEJIANG ZHONGTIAN TOOLS CO., LTD. Free format text: FORMER OWNER: SHI XIWEN Effective date: 20120420 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120420 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 |