CN212169101U - Major diameter fluted drill of two R cell types - Google Patents
Major diameter fluted drill of two R cell types Download PDFInfo
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- CN212169101U CN212169101U CN202020548383.7U CN202020548383U CN212169101U CN 212169101 U CN212169101 U CN 212169101U CN 202020548383 U CN202020548383 U CN 202020548383U CN 212169101 U CN212169101 U CN 212169101U
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Abstract
The utility model discloses a major diameter fluted drill of two R cell types, including drill bit main part and drill spindle, the drill bit main part correspond set up in drill spindle one side and formula structure setting as an organic whole, drill bit main part surface is provided with two cutting edges, and two cutting edges are the setting of helical structure distribution, correspond respectively between two cutting edges and are provided with the chip groove, tip one side of cutting edge is provided with interior cold hole, the tail end middle part of drill spindle is provided with the constant head tank, the drill spindle is provided with two interior cold tanks that helical structure distributes in the constant head tank, be provided with two R angles in the chip groove. The utility model has the advantages of simple and reasonable structure, reliably, processing convenient to use changes the chip removal mode through the chip groove cell type that changes the fluted drill to reach the purpose that the chip breaking was not around the bits, make the chip removal smooth and easy.
Description
Technical Field
The utility model relates to a cutter field is used in the processing of auto industry engine oil pump, especially relates to a major diameter fluted drill of two R cell types.
Background
The drill bit is used for rough drilling, the drill bit is used for machining a hole D15, due to the limitation of customers, no extra cutter towers are arranged, the hole can be designed to only have 3 cutters at most, and the outer diameter of the drill bit for machining a bottom hole cannot be too small. The problems of difficult chip removal, large processing resistance and the like can be caused when the bottom hole drilling bit is too large, and the processed material is steel with good toughness, so that the chip is not easy to break, and the chip removal difficulty is increased. The drill bit is frequently broken due to the problem of no broken chips, the drill bit can be ground for 3 times originally, and the drill bit cannot be ground for 1 time due to the broken edge, so that the cost of a customer is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, reasonable, reliable, processing convenient to use changes the chip removal mode through the chip groove cell type that changes the fluted drill to reach the chip breaking and not wind the purpose of bits, make the major diameter fluted drill of the smooth and easy two R cell types of chip removal.
The technical scheme of the utility model, a major diameter fluted drill of two R cell types, including drill bit main part and drill spindle, the drill bit main part correspond set up in drill spindle one side and formula structure as an organic whole set up, drill bit main part surface is provided with two cutting edges, and two cutting edges are helical structure and distribute the setting, correspond respectively between two cutting edges and are provided with the chip groove, tip one side of cutting edge is provided with interior cold hole, the tail end middle part of drill spindle is provided with the constant head tank, the drill spindle is provided with the interior cold groove that two helical structure distribute in the constant head tank, be provided with two R angles in the chip groove.
In a preferred embodiment of the present invention, the diameter of the drill body is smaller than the diameter of the drill shaft.
In a preferred embodiment of the present invention, the included angle between the two cutting edge ends is 140 °.
In a preferred embodiment of the present invention, two R-corners are spliced and disposed in the chip groove.
In a preferred embodiment of the present invention, two said R-angles are respectively disposed on two sides of the middle portion of the chip groove.
For a major diameter fluted drill of two R cell types, the utility model has the advantages of simple structure, reasonable, reliable, processing convenient to use changes the chip removal mode through the chip groove cell type that changes the fluted drill to reach the purpose that the chip breaking is not around the bits, make the chip removal smooth and easy.
Drawings
FIG. 1 is a front view of a preferred embodiment of a double R fluted large diameter twist drill of the present invention;
FIG. 2 is a left side view of FIG. 1;
fig. 3 is a right side view of fig. 1.
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 major diameter fluted drill of two R cell types, it is shown as fig. 1 combines fig. 2-fig. 3, including drill bit main part 1 and drill spindle 2, drill bit main part 1 corresponds and sets up in 2 one sides of drill spindles and formula structure as an organic whole setting, guarantees overall structure's intensity, and the diameter size of drill bit main part 1 is less than the diameter size of drill spindle 2, convenient processing.
The surface of the drill bit main body 1 is provided with two cutting edges 3, the included angle alpha of the end parts of the two cutting edges 3 is 140 degrees, the two cutting edges 3 are distributed in a spiral structure, adaptive processing is carried out according to products, and an inner cooling hole 4 is arranged on one side of the end part of each cutting edge 3, so that the drill bit main body is convenient to cool in processing.
The middle part of the tail end of the drill spindle 2 is provided with a positioning groove 5, and the drill spindle 2 is provided with two inner cooling grooves 6 which are distributed in a spiral structure in the positioning groove 5 and are also used for cooling the twist drill in the using process.
Correspond respectively between two cutting edges 3 and be provided with chip groove 7 that is used for the chip removal, chip groove 7 middle part both sides concatenation is provided with two R angles and includes R1 and R2, and the chip breaking makes iron fillings strike R2 face fast and break the iron fillings through the speed of processing in the processing of fluted drill to it is smooth and easy to make the chip removal, reduces the tipping phenomenon of fluted drill from this, improves fluted drill's life.
For a major diameter fluted drill of two R cell types, the utility model has the advantages of simple structure, reasonable, reliable, processing convenient to use changes the chip removal mode through the chip groove cell type that changes the fluted drill to reach the purpose that the chip breaking is not around the bits, make the chip removal smooth and easy.
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 (5)
1. The utility model provides a major diameter fluted drill of two R cell types, includes drill bit main part and drill spindle, the drill bit main part correspond set up in drill spindle one side and formula structure as an organic whole set up, drill bit main part surface is provided with two cutting edges, and two cutting edges are the setting of helical structure distribution, correspond respectively between two cutting edges and are provided with the chip groove, tip one side of cutting edge is provided with interior cold hole, the tail end middle part of drill spindle is provided with the constant head tank, the drill spindle is provided with the interior cold groove that two helical structure distribute in the constant head tank, its characterized in that: and two R angles are arranged in the chip grooves.
2. The large diameter twist drill of the double R flute type of claim 1, wherein: the diameter size of the drill bit main body is smaller than that of the drill shaft.
3. The large diameter twist drill of the double R flute type of claim 1, wherein: the included angle between the two cutting edge ends is 140 degrees.
4. The large diameter twist drill of the double R flute type of claim 1, wherein: and the two R corners are spliced in the chip grooves.
5. The large diameter twist drill of the double R flute type of claim 4, wherein: and the two R angles are respectively arranged on two sides of the middle part of the chip groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020548383.7U CN212169101U (en) | 2020-04-15 | 2020-04-15 | Major diameter fluted drill of two R cell types |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020548383.7U CN212169101U (en) | 2020-04-15 | 2020-04-15 | Major diameter fluted drill of two R cell types |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212169101U true CN212169101U (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020548383.7U Active CN212169101U (en) | 2020-04-15 | 2020-04-15 | Major diameter fluted drill of two R cell types |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212169101U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113770425A (en) * | 2021-09-22 | 2021-12-10 | 辽宁工程技术大学 | Combined twist drill for processing stepped hole with inner chamfer |
-
2020
- 2020-04-15 CN CN202020548383.7U patent/CN212169101U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113770425A (en) * | 2021-09-22 | 2021-12-10 | 辽宁工程技术大学 | Combined twist drill for processing stepped hole with inner chamfer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| 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. |