CN204869143U - Bimetal sieve bores - Google Patents
Bimetal sieve bores Download PDFInfo
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- CN204869143U CN204869143U CN201520559760.6U CN201520559760U CN204869143U CN 204869143 U CN204869143 U CN 204869143U CN 201520559760 U CN201520559760 U CN 201520559760U CN 204869143 U CN204869143 U CN 204869143U
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Abstract
The utility model discloses a bimetal sieve bores. Aim at cutting edge intensity and hardness height, low in manufacturing cost, long service life, do not need the bimetal sieve bores of frequent grinding cutting blade. It is including boring the body, and the front end that bores the body is main cutting edge and front cutting edge, and the front end system of front cutting edge has the circumference cutting edge that exceeds the main cutting edge, and it has the helical shape chip groove to bore to make on one's body, has the drillstock that supplies the centre gripping in the tail end system of boring the body, and the front end system of boring the body center has the toper spiral shell sharp, and characterized by bores the cutting edge district section of body front end and makes with high -speed steel or carbide material, and the rear end and the drillstock that bore the body are that high quality carbon structural steel makes, and both fuse through the welding. The utility model discloses a cutting edge part, adopt high -speed steel or carbide material for cut easilyer, bore body and drillstock then adopt high quality carbon structural steel to make, make low in manufacturing cost.
Description
Technical field
The utility model belongs to wood working tool, the bimetallic Zhiluo driller that particularly carpenter is boring.
Background technology
Common Zhiluo driller (boring also known as straight sieve) is by main cutting edge and side cutting edge, and main cutting edge mainly cuts the timber in the middle of hole, and front cutting edge and the hole wall of circumferential cutting edge to boring cut, and make holed hole wall smooth, and size is unified regular.The material of current manufacture carpenter's auger adopts No. 45 steel mostly, and the hardness after quenching is 45-48HRC.But in the use of boring, still there will be the wearing and tearing of cutting edge, especially main cutting edge, front cutting edge and circumferential cutting edge, therefore need to carry out sharpening to cutting edge, due to this drill bit, than common fluted drill structure and complex-shaped, the more difficult grasp grinding technology of general workman, and more non-cutting time can be spent for sharpening.
Utility model content
The purpose of this utility model is to provide a kind of edge strength and hardness is high, low cost of manufacture, long service life, does not need the bimetallic Zhiluo driller of frequent grinding cutting edge.
In order to reach above-mentioned requirements, the utility model is achieved through the following technical solutions: it includes brill body, the front end of boring body is main cutting edge and front cutting edge, the front end of front cutting edge is shaped with the circumferential cutting edge exceeding main cutting edge, bore and be shaped with spiral chip area with it, the drillstock for clamping is shaped with at the tail end boring body, the front end at Zuan Shen center is shaped with taper spiral shell point, it is characterized in that cutting edge section high-speed steel or the Hardmetal materials of brill body front end are made, the rear end and the drillstock that bore body are that carbon constructional quality steel is made, both are by being welded and fused.
Described high-speed steel is W18Cr4V or W6Mo5Cr4V2, and Hardmetal materials is YG6 or YG8.
Described carbon constructional quality steel is No. 45 steel.
High-speed steel or carbide alloy are used to the material manufacturing cutting metal cutter, according to the bimetallic Zhiluo driller that such scheme manufactures, due to the cutting edge part of main cutting edge, front cutting edge and circumferential cutting edge, have employed high-speed steel or the Hardmetal materials of high strength and high rigidity, the hardness of high-speed steel reaches 60-65HRC, Hardmetal materials hardness is up to about 90HRA, make cutting lighter, be not easy wearing and tearing, bore body and drillstock then adopts common carbon constructional quality steel to make, make low cost of manufacture.This bimetallic Zhiluo driller can 5 times the service life of common carpenter's auger, and decrease the time of frequent grinding drill.
Accompanying drawing explanation
Fig. 1 is the front view of bimetallic Zhiluo driller.
In figure: 1, bore body; 2, main cutting edge; 3, front cutting edge; 4, circumferential cutting edge; 5, chip area; 6, drillstock; 7, taper spiral shell point; 8, cutting edge section.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model will be further described.
Fig. 1 is the structural representation of bimetallic Zhiluo driller.As seen from the figure, it includes and bores body 1 bimetallic Zhiluo driller (also claiming bi-metal straight sieve to bore), the front end of boring body 1 is main cutting edge 2 and front cutting edge 3, the front end of front cutting edge 3 is shaped with the circumferential cutting edge 4 exceeding main cutting edge 1, bore on body 1 and be shaped with spiral chip area 5, be shaped with the drillstock 6 for clamping at the tail end boring body 1, the front end of boring body 6 center is shaped with taper spiral shell point 7.And bore cutting edge section 8 high-speed steel of body 1 front end or Hardmetal materials is made, bore the rear end of body 1 and drillstock 6 is that carbon constructional quality steel is made, cutting edge section 8 and bore the rear end of body 1 and drillstock 6 by friction welding (FW) or brazing they are integrally welded.Described high-speed steel is W18Cr4V or W6Mo5Cr4V2, and Hardmetal materials is YG6 or YG8.Described carbon constructional quality steel is No. 45 steel.
Claims (3)
1. bimetallic Zhiluo driller, it includes brill body, the front end of boring body is main cutting edge and front cutting edge, the front end of front cutting edge is shaped with the circumferential cutting edge exceeding main cutting edge, bore and be shaped with spiral chip area with it, the drillstock for clamping is shaped with at the tail end boring body, the front end at Zuan Shen center is shaped with taper spiral shell point, it is characterized in that cutting edge section high-speed steel or the Hardmetal materials of brill body front end are made, the rear end and the drillstock that bore body are that carbon constructional quality steel is made, and both are by being welded and fused.
2. the bimetallic Zhiluo driller according to claim l, it is characterized in that described high-speed steel is W18Cr4V or W6Mo5Cr4V2, Hardmetal materials is YG6 or YG8.
3. the bimetallic Zhiluo driller according to claim l, is characterized in that described carbon constructional quality steel is No. 45 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559760.6U CN204869143U (en) | 2015-07-30 | 2015-07-30 | Bimetal sieve bores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559760.6U CN204869143U (en) | 2015-07-30 | 2015-07-30 | Bimetal sieve bores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204869143U true CN204869143U (en) | 2015-12-16 |
Family
ID=54813564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520559760.6U Active CN204869143U (en) | 2015-07-30 | 2015-07-30 | Bimetal sieve bores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204869143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020092462A1 (en) * | 2018-11-02 | 2020-05-07 | Milwaukee Electric Tool Corporation | Auger |
-
2015
- 2015-07-30 CN CN201520559760.6U patent/CN204869143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020092462A1 (en) * | 2018-11-02 | 2020-05-07 | Milwaukee Electric Tool Corporation | Auger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |