CN103920931A - Four-blade composite reamer - Google Patents
Four-blade composite reamer Download PDFInfo
- Publication number
- CN103920931A CN103920931A CN201410191140.1A CN201410191140A CN103920931A CN 103920931 A CN103920931 A CN 103920931A CN 201410191140 A CN201410191140 A CN 201410191140A CN 103920931 A CN103920931 A CN 103920931A
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- China
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- blade
- reamer
- cutter head
- height
- top end
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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The invention relates to a four-blade composite reamer. The four-blade composite 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, and 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 are arranged around the reamer head at different intervals. A first included angle alpha is formed between the first blade and the second blade and is equal to 98 degrees, a second included angle beta is formed between the second blade and the third blade and is equal to 82 degrees, a third included angle gamma is formed between the third blade and the fourth blade and is equal to 95 degrees, and a fourth included angle delta is formed between the fourth blade and the first blade and is equal to 85 degrees. The four-blade composite reamer can effectively relieve the phenomenon of cavity shrinkage, guarantee machining accuracy and improve production efficiency.
Description
Technical field
The present invention relates to a kind of process tool, be 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, often there is local shrinkage cavity and the overproof large phenomenon of linearity at processing thin-walled parts in polycrystalline diamond aperture knife tool, cannot ensure machining accuracy and surface quality, reduce production efficiency.
Summary of the invention
Technical problem to be solved by this invention is to provide the compound reamer of a kind of four sword, can effectively alleviate shrinkage cavity phenomenon, has ensured machining accuracy, has improved production efficiency.
For solving the problems of the technologies described above, technical scheme of the present invention 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, described 4 blades surround described cutter head outside, 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.
Beneficial effect of the present invention is:
1. four not decile settings of blade, can effectively alleviate cutter in High-speed machining process because of resonance and the large phenomenon of aperture thermal deformation that forms of frictional force, 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 ensured 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 is from extremely evenly increasing with the height of tool rest junction with blade junction, and it is stressed more reasonable to make, and the stressed ability of being squeezed increases, and has increased chip removal ability simultaneously, has improved operating efficiency.
Brief description of the drawings
Fig. 1 is structure chart of the present invention
Fig. 2 is left view of the present invention
Fig. 3 be A-A of the present invention to cutaway view
Fig. 4 be B-B of the present invention to cutaway view
Detailed description of the invention
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 difference in height h3=2* the 3rd blade 6 tops and described cutter head 1 top between four blade sheet 7 tops 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 aperture thermal deformation that forms of frictional force, 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 ensured 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 is from extremely evenly increasing with the height of tool rest junction with blade junction, and it is stressed more reasonable to make, and the stressed ability of being squeezed increases, and has increased chip removal ability simultaneously, has improved operating efficiency.
Here description of the invention and application is illustrative, not wants scope of the present invention to limit in the above-described embodiments, and therefore, the present invention 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, described 4 blades surround described cutter head outside, 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 |
|---|---|---|---|
| CN201410191140.1A CN103920931A (en) | 2014-05-08 | 2014-05-08 | Four-blade composite reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191140.1A CN103920931A (en) | 2014-05-08 | 2014-05-08 | Four-blade composite reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103920931A true CN103920931A (en) | 2014-07-16 |
Family
ID=51139458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410191140.1A Pending CN103920931A (en) | 2014-05-08 | 2014-05-08 | Four-blade composite reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103920931A (en) |
-
2014
- 2014-05-08 CN CN201410191140.1A patent/CN103920931A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140716 |
|
| WD01 | Invention patent application deemed withdrawn after publication |