CN203817526U - Composite four-blade reamer - Google Patents
Composite four-blade reamer Download PDFInfo
- Publication number
- CN203817526U CN203817526U CN201420231973.1U CN201420231973U CN203817526U CN 203817526 U CN203817526 U CN 203817526U CN 201420231973 U CN201420231973 U CN 201420231973U CN 203817526 U CN203817526 U CN 203817526U
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- CN
- China
- Prior art keywords
- blade
- cutter head
- reamer
- height
- top end
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- Expired - Fee Related
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model relates to a composite four-blade reamer. The composite four-blade reamer comprises a reamer head, a reamer base and a reamer handle. The reamer head is provided with a first blade, a second blade, a third blade and a fourth blade. The top end of the first blade and the top end of the reamer head are located on the same horizontal plane, the height difference between the top end of the second blade and the top end of the reamer head is 0.9 mm, the height difference between the top end of the third blade and the top end of the reamer head is 0.6 mm, the height difference between the top end of the fourth blade and the top end of the reamer head is 1.2 mm, the four blades surround the reamer head in a non-equant mode, the first included angle alpha formed between the first blade and the second blade is 98 degrees, the second included angle beta formed between the second blade and the third blade is 82 degrees, the third included angle gamma formed between the third blade and the fourth blade is 95 degrees, and the fourth included angle delta formed between the fourth blade and the first blade is 85 degrees. The hole shrinking phenomenon can be effectively relieved, machining precision is guaranteed, and production efficiency is improved.
Description
Technical field
The utility model relates to a kind of process tool, is specifically related to the compound reamer of a kind of four sword.
Background technology
For current part of automobile engine high accuracy, high-speed, high efficiency processing industry, at processing thin-walled parts, often there is local shrinkage cavity and the overproof large phenomenon of linearity in polycrystalline diamond aperture knife tool, cannot guarantee machining accuracy and surface quality, reduce production efficiency.
Summary of the invention
Technical problem to be solved in the utility model is to provide the compound reamer of a kind of four sword, can effectively alleviate shrinkage cavity phenomenon, has guaranteed machining accuracy, has improved production efficiency.
For solving the problems of the technologies described above, the technical solution of the utility model is:
The compound reamer of a kind of four sword, comprise cutter head, tool rest and handle of a knife, described cutter head is provided with 4 blades, wherein, described 4 blades are respectively the first blade, the second blade, the 3rd blade and four blade sheet, it is outside that described 4 blades surround described cutter head, described the first blade top and described cutter head top are positioned in same level, difference in height between the second blade top and described cutter head top is 0.9mm, difference in height between the 3rd blade top and described cutter head top is 0.6mm, difference in height between four blade sheet top and described cutter head top is 1.2mm, 4 described blades not decile be centered around cutter head surrounding, between the first blade and the second blade, form the first angle α, α=98 °, between the second blade and the 3rd blade, form the second angle β, β=82 °, between the 3rd blade and four blade sheet, form the 3rd angle γ, γ=95 °, between four blade sheet and the first blade, form the 4th angle δ, δ=85 °, on described 4 blades, be equipped with blade, described blade rear portion is provided with guide support, described guide support is from extremely evenly increasing with the height of tool rest junction with blade junction, the height * 1.1=guide support of described guide support and blade junction and the height of tool rest junction.
The beneficial effects of the utility model are:
1. four not decile settings of blade, can effectively alleviate cutter in High-speed machining process because of resonance and the large phenomenon of frictional force formed aperture thermal deformation, and final reduced bore machines rear produced shrinkage cavity phenomenon, tolerance is less than 4 μ m, and the tolerance that general cutter can reach is between 11-12 μ m, so guaranteed the precision of processing, greatly improved operating efficiency.
2. between four blades and cutter head, there is difference in height, make cutting more abundant, improved production efficiency, reduced the loss of reamer, saved cost.
3. guide support, from extremely evenly increasing with the height of tool rest junction with blade junction, makes more reasonable stress, and the stressed ability of being squeezed increases, and has increased chip removal ability simultaneously, has improved operating efficiency.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model
Fig. 2 is left view of the present utility model
Fig. 3 be the utility model A-A to cutaway view
Fig. 4 be the utility model B-B to cutaway view
The specific embodiment
The compound reamer of a kind of four sword as shown in the figure, comprise cutter head 1, tool rest 2 and handle of a knife 3, described cutter head 1 is provided with 4 blades, wherein, described 4 blades are respectively the first blade 4, the second blade 5, the 3rd blade 6 and four blade sheet 7, described 4 blades surround described cutter head 1 outside, described the first blade 4 tops and described cutter head 1 top are positioned in same level, difference in height h1 between the second blade 5 tops and described cutter head 1 top is 0.9mm, difference in height h2 between the 3rd blade 6 tops and described cutter head 1 top is 0.6mm, difference in height h3 between four blade sheet 7 tops and described cutter head 1 top is 1.2mm, i.e. difference in height h2=1.5* the second blade 5 tops between the 3rd blade 6 tops of difference in height h3=2* between four blade sheet 7 tops and described cutter head 1 top and described cutter head 1 top and the difference in height h3 between described cutter head 1 top, 4 described blades not decile be centered around cutter head 1 surrounding, between the first blade 4 and the second blade 5, form the first angle α, α=98 °, between the second blade 5 and the 3rd blade 6, form the second angle β, β=82 °, between the 3rd blade 6 and four blade sheet 7, form the 3rd angle γ, γ=95 °, described the first blade 4 is located along the same line with described the 3rd blade 6, between four blade sheet 7 and the first blade 4, form the 4th angle δ, δ=85 °, on described 4 blades, be equipped with blade 8, described blade 8 rear portions are provided with guide support 9, described guide support 9 is from extremely evenly increasing with the height of tool rest 2 junctions with blade 8 junctions, described guide support 9 and the height h4*1.1=guide support 9 of blade 8 junctions and the height h5 of tool rest 2 junctions.
Four not decile settings of blade, can effectively alleviate cutter in High-speed machining process because of resonance and the large phenomenon of frictional force formed aperture thermal deformation, and final reduced bore machines rear produced shrinkage cavity phenomenon, tolerance is less than 3.5 μ m, and the tolerance that general cutter can reach is between 11-12 μ m, so guaranteed the precision of processing, greatly improved operating efficiency.
Between four blades and cutter head, there is difference in height, and h1=2*h2=1.5*h3, multiple cooperation cutting, makes cutting more abundant, has improved production efficiency, has reduced the loss of reamer, has saved cost.
Guide support, from extremely evenly increasing with the height of tool rest junction with blade junction, makes more reasonable stress, and the stressed ability of being squeezed increases, and has increased chip removal ability simultaneously, has improved operating efficiency.
Here description of the present utility model and application is illustrative; not want by scope restriction of the present utility model in the above-described embodiments; therefore, the utility model is not subject to the restriction of the present embodiment, and the technical scheme that any employing equivalence replacement obtains is all in the scope of protection of the invention.
Claims (1)
1. the compound reamer of sword, comprise cutter head, tool rest and handle of a knife, described cutter head is provided with 4 blades, it is characterized by, described 4 blades are respectively the first blade, the second blade, the 3rd blade and four blade sheet, it is outside that described 4 blades surround described cutter head, described the first blade top and described cutter head top are positioned in same level, difference in height between the second blade top and described cutter head top is 0.9mm, difference in height between the 3rd blade top and described cutter head top is 0.6mm, difference in height between four blade sheet top and described cutter head top is 1.2mm, 4 described blades not decile be centered around cutter head surrounding, between the first blade and the second blade, form the first angle α, α=98 °, between the second blade and the 3rd blade, form the second angle β, β=82 °, between the 3rd blade and four blade sheet, form the 3rd angle γ, γ=95 °, between four blade sheet and the first blade, form the 4th angle δ, δ=85 °, on described 4 blades, be equipped with blade, described blade rear portion is provided with guide support, described guide support is from extremely evenly increasing with the height of tool rest junction with blade junction, the height * 1.1=guide support of described guide support and blade junction and the height of tool rest junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231973.1U CN203817526U (en) | 2014-05-08 | 2014-05-08 | Composite four-blade reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231973.1U CN203817526U (en) | 2014-05-08 | 2014-05-08 | Composite four-blade reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203817526U true CN203817526U (en) | 2014-09-10 |
Family
ID=51473067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420231973.1U Expired - Fee Related CN203817526U (en) | 2014-05-08 | 2014-05-08 | Composite four-blade reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203817526U (en) |
-
2014
- 2014-05-08 CN CN201420231973.1U patent/CN203817526U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20180508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |