CN211727733U - Zero-center spiral forming reamer - Google Patents
Zero-center spiral forming reamer Download PDFInfo
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- CN211727733U CN211727733U CN202020400888.9U CN202020400888U CN211727733U CN 211727733 U CN211727733 U CN 211727733U CN 202020400888 U CN202020400888 U CN 202020400888U CN 211727733 U CN211727733 U CN 211727733U
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- drill bit
- main part
- bit main
- reamer
- center
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Abstract
The utility model discloses a zero-center spiral forming reamer, including drill spindle and drill bit main part, drill bit main part correspond set up in drill spindle one side and formula structure setting as an organic whole, drill spindle and drill bit main part center run through and are provided with interior cold hole, drill bit main part surface spiral distributes and is provided with a plurality of cutting edges, cutting edge tip one side is provided with the end tooth, is provided with the chip groove between the arbitrary double-phase adjacent cutting edge, the both ends tooth of drill bit main part opposite side sets up on same water flat line with drill bit main part's center. The utility model discloses simple structure, processing convenient to use has reduced the cutter sharpness, and to a great extent has reduced the knife tip condition of tipping, has reduced the product defect rate, and the cutter life-span has obtained the promotion.
Description
Technical Field
The utility model relates to an auto industry engine oil pump spot facing work cutter field especially relates to a spiral shaping reamer at zero center.
Background
Reamers are used for reaming drilled or reamed holes in workpieces for the purpose of finishing the holes. The method mainly aims to improve the machining precision of the hole and reduce the roughness of the surface of the hole, and the machining allowance is small. When the cutter is machined, a cutter point is firstly contacted with a workpiece, the cutter point is relatively sharp and thin, a negative core height of 0.3-0.4 (shown in figure 3) exists between an end tooth and the center of the cutter, so that the cutter is very easy to crack, and when the traditional reamer is manufactured, a chamfer with a proper size is added on the cutter point, so that the stability of a cutter leading-in hole is facilitated, and the cutter point edge cracking abrasion in the cutter machining process is reduced. Due to the special characteristics of the product, this reamer is not allowed to design a chamfer of the desired size.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, processing convenient to use has reduced the cutter sharpness, and to a great extent has reduced the knife tip condition of tipping, has reduced the product defect rate, and the cutter life-span has obtained the zero central spiral shaping reamer that promotes.
The technical scheme of the utility model, a zero center's spiral shaping reamer, including drill spindle and drill bit main part, drill bit main part correspond set up in drill spindle one side and formula structure setting as an organic whole, drill spindle and drill bit main part center run through and are provided with interior cold hole, drill bit main part surface spiral distributes and is provided with a plurality of cutting edges, cutting edge tip one side is provided with the end tooth, is provided with the chip groove between the arbitrary double-phase adjacent cutting edge, the both ends tooth of drill bit main part opposite side sets up on same water flat line with the center of drill bit main part.
In a preferred embodiment of the present invention, the number of the cutting edges is 6.
In a preferred embodiment of the present invention, the end portions of the plurality of end teeth are located on the same plane.
In a preferred embodiment of the present invention, the end teeth are provided with rounded corners at outer ends thereof.
In a preferred embodiment of the present invention, the size of the fillet is 0.25 mm.
In a preferred embodiment of the present invention, the surface of the drill shaft is provided with a positioning groove.
For a spiral shaping reamer at zero center, the utility model discloses simple structure, processing convenient to use has reduced the cutter sharpness, and to a great extent has reduced the knife tip condition of tipping, has reduced the product defect rate, and the cutter life-span has obtained the promotion.
Drawings
FIG. 1 is a front view of a preferred embodiment of a zero center helical reamer of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is an end view of a conventional product.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more easily understand the advantages and features of the present invention, and to make more clear and definite definitions of the scope of the present invention.
For a spiral shaping reamer at zero center, as shown in fig. 1 combination figure 2, including boring axle 1 and drill bit main part 2, drill bit main part 2 corresponds and sets up in 1 one side of boring axle and formula structure as an organic whole setting, and boring axle 1 and drill bit main part 2 center run through and are provided with interior cold bore 3, and 2 surperficial spiral distributions of drill bit main part are provided with 6 cutting edges 4, and cutting edge 4 tip one side is provided with end tooth 5, is provided with chip groove 6 between two arbitrary adjacent cutting edges 4, and the both ends tooth 5 of 2 opposite sides of drill bit main part sets up on same water flat line with drill bit main part 2's center, 0 core height promptly, reduces the cutter sharpness, avoids appearing the phenomenon of tipping.
The tip of a plurality of end teeth 5 is located the coplanar (be located 180 coplanar promptly), guarantees that end teeth 5 are in same work plane when drilling, and the 5 outside ends of end teeth are provided with radius 7, and the radius size is 0.25mm, avoids too sharp, reduces the tipping phenomenon.
The surface of the drill spindle 1 is provided with a positioning groove 8, so that the drill spindle is convenient and rapid to install and position.
For a spiral shaping reamer at zero center, the utility model discloses simple structure, processing convenient to use has reduced the cutter sharpness, and to a great extent has reduced the knife tip condition of tipping, has reduced the product defect rate, and the cutter life-span has obtained the promotion.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be covered within the protection scope of the present invention without the changes or substitutions thought by the inventive work within the technical scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a spiral shaping reamer at zero center, includes bores axle and drill bit main part, drill bit main part correspond set up in bore axle one side and formula structure as an organic whole set up, bore axle and drill bit main part center run through and are provided with interior cold hole, drill bit main part surface spiral distributes and is provided with a plurality of cutting edges, cutting edge tip one side is provided with the end tooth, is provided with chip groove, its characterized in that between arbitrary two adjacent cutting edges: the two end teeth on the opposite sides of the drill bit main body and the center of the drill bit main body are arranged on the same horizontal line.
2. The zero center helical contour reamer of claim 1, wherein: the cutting edges are provided with 6 strips.
3. The zero center helical contour reamer of claim 1, wherein: the end parts of the end teeth are positioned on the same plane.
4. The zero center helical contour reamer of claim 1, wherein: and the outer side end of the end tooth is provided with a fillet.
5. The zero center helical contour reamer of claim 4, wherein: the size of the fillet is 0.25 mm.
6. The zero center helical contour reamer of claim 1, wherein: and the surface of the drill shaft is provided with a positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020400888.9U CN211727733U (en) | 2020-03-26 | 2020-03-26 | Zero-center spiral forming reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020400888.9U CN211727733U (en) | 2020-03-26 | 2020-03-26 | Zero-center spiral forming reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211727733U true CN211727733U (en) | 2020-10-23 |
Family
ID=72853568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020400888.9U Active CN211727733U (en) | 2020-03-26 | 2020-03-26 | Zero-center spiral forming reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211727733U (en) |
-
2020
- 2020-03-26 CN CN202020400888.9U patent/CN211727733U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215500 10-15 Nanbang Road, Maoqiao Village, Changfu street, Changshu City, Suzhou City, Jiangsu Province Patentee after: Suzhou LEIWANG Intelligent System Co.,Ltd. Address before: 215500 Maoqiao Village, Yushan Town, Changshu City, Suzhou City, Jiangsu Province Patentee before: CHANGSHU LEIWANG ALLOY TOOLS Co.,Ltd. |
|
| CP03 | Change of name, title or address |